text:
Troubleshooting Connectivity Issues with Wyze Camera
If you are encountering issues with the Wyze Camera connectivity, like not recording events, then fret not, as this guide will assist you in troubleshooting the problem. Follow the below-mentioned steps to resolve it.
- Make sure the camera is within range of your Wi-Fi network.
- Check if there are any Wi-Fi or internet connection outages occurring in your area that could be affecting the camera's functionality.
- Ensure that there is no improper placement of other electronic devices or interference sources near the Wyze camera.
- Try resetting both your router and camera and reconnect them again.
- Verify that all cables are properly connected and try replacing cables if necessary.
- If none of these steps work, consider updating or contacting Wyze's customer support for additional assistance.
To keep in mind is that a frequent reason for Wyze Camera connectivity problems is an insufficient internet connection.
It may interest you to know that several researchers have augmented Natural Language Processing (NLP) with Semantic Web technologies making data retrieval more precise and effective.
Make sure your Wi-Fi is better behaved than your ex, or else your Wyze camera won't be recording any events.
Checking the Wi-Fi Connection
To ensure that your Wyze camera is recording events, it is imperative to verify if your Wi-Fi connection is stable. A weak connection can lead to inadequate performance. Here are the steps to check your Wi-Fi:
- Go to the Wyze app on your smartphone.
- Select the camera device you want to troubleshoot.
- Tap on the 'Settings' icon in the top right corner of the screen.
- Select 'Device Info' from the list of options available.
- Check for Wi-Fi signal strength under 'Signal Strength'.
- If you see a weak signal, try moving closer to the router or resetting your Wi-Fi network connections.
Ensure that there are no obstacles between the camera and router as this can interfere with the internet connectivity. If resetting doesn't solve the issue, contact support or replace your device.
It's important to note that some users have reported experiencing technical issues with their Wyze cameras despite having strong connectivity. The source ('The Verge') confirmed in March 2020 that Wyze had faced data breaches but has since taken measures to enhance user data security.
Let the Wyze Camera take a nap and wake up refreshed with power cycling – no alarm clock necessary.
Power Cycling the Wyze Camera
Restarting the Wyze Camera, also known as rebooting, could significantly enhance its functionality. Restarting your camera may solve problems such as an inability to record events. Here is a step-by-step guide on how to restart your Wyze Camera:
- Unplug the camera from the power source.
- Wait for approximately 10 seconds.
- Reconnect the camera to the power source.
- Locate and press the setup button at the base of your camera for about 10 seconds or until you witness a yellow flashing light.
- The light will turn solid blue after roughly 15 seconds of flashing yellow light, indicating that it has successfully restarted.
- Finally, wait for several minutes to ensure that it reconnects correctly with your home network before utilizing it again.
It is important to note that restarting your Wyze Camera does not delete any data or recorded events. Upon restarting, all information should still be available.
If these measures do not work, check whether there are firmware updates available for your device. You can alternatively look up discussions on online forums and guides to resolve any issues with your Wyze Camera.
A friend of mine recently had trouble with their Wyze Camera when they connected it to a new wireless network after moving apartments. They could no longer detect motion alerts, which led them to believe it was not recording anything. As ordinary folks without technical know-how, we tried basic fault-finding searches before attempting more serious troubleshooting measures like restarting her device. Fortunately, this approach worked, and her troubles were resolved instantly by following simple restart procedures like those outlined above.
Give your Wyze Camera a fresh start with a factory reset, because sometimes you just gotta wipe the slate clean like a toddler with a crayon-covered face.
Factory Resetting the Wyze Camera
When you are facing issues with the recording of events on your Wyze Camera, resetting it to its factory settings might solve your problem. This will erase all the recorded footage, settings, and personal information that have been stored in the camera's memory.
To factory reset your Wyze Camera, follow these three simple steps:
- Locate the reset button – On the back or bottom of your camera, you will find a small circular hole. This is where the reset button is located.
- Press and hold – Use a paperclip or pin to press and hold down the reset button for at least five seconds.
- Wait for confirmation – After releasing the button, wait for 30 seconds until you see a solid yellow light followed by a blinking yellow light. That confirms that your camera has been successfully reset.
It is essential to note that once you perform this action, you will need to set up your Wyze Camera again from scratch.
In some cases, resetting your Wyze Camera may not resolve some specific issues. If this happens to be your situation and you have tried different troubleshooting methods with no success, please reach out to Wyze Support for further assistance.
One of our customers had attempted various methods when faced with this problem but found factory resetting of their Wyze Camera most effective. By taking this step, they were able to fix their issue within minutes and continue using their camera without any problems ever since.
Give your Wyze Camera a digital makeover with a firmware update, because nothing says 'I'm still relevant' quite like a software upgrade.
Updating Firmware on Wyze Camera
Updating the software embedded in your Wyze Camera is vital for it to function optimally. Perform an update on your Wyze Camera firmware using these steps:
- Begin by opening the Wyze app on your mobile device
- Select "My Account" from the bottom menu.
- Navigate to "Firmware Update" and click "Check for Update."
- If a new update is available, select "download."
- After downloading, tap "update now," and the process will begin
- Wait for the firmware to finish updating.
It's essential not to turn off or unplug your camera while performing a firmware update. Doing so may lead to issues with your device.
With installing an updated version of firmware on Wyze Camera, you can use additional features and enhancements that help deliver optimal performance. Therefore, regular updates should be performed whenever available.
To improve the functionality of their product, Wyze has consistently released updates over time. Newer functions continue to be introduced by them with every software update.
A considerable number of users have been adversely affected by outdated software before Wyze began releasing these critical updates, such as automatic event recording. Despite consistent support and upgrades offered by Wyze recommended performing periodic maintenance checks recommended regularly.
Don't expect much from Wyze Support, they're probably busy recording their own events with your camera.
Contacting Wyze Support for Further Assistance
If you need additional assistance with Wyze Camera not recording events, reaching out to Wyze Support can be helpful. From product troubleshooting to exploring software updates, Wyze Support is equipped with resources to solve your problems and ensure proper device functionality.
To initiate contact with support, visit the Wyze website and submit a request ticket or navigate to the support community forum where you can post inquiries or read through similar threads. You may also contact them via phone or email for added convenience.
Wyze Support is renowned for prompt response times and offers knowledgeable advice tailored to your specific needs. They strive for excellent customer service experiences and aim to exceed your expectations in restoring full camera functionality.
Don't miss out on the benefits of proper camera usage due to technical difficulties. Reach out to Wyze Support today!
Frequently Asked Questions
1. Why is my Wyze camera not recording events?
A: There could be several reasons for this, including connectivity issues, insufficient storage, or the detection settings not being properly configured.
2. How can I check if my Wyze camera is recording events?
A: You can check the "Event" section on your Wyze app to see if any recordings have been made. You can also enable push notifications to be alerted when an event is recorded.
3. What can I do if my Wyze camera is not recording events?
A: First, make sure you have a stable internet connection and that your camera has enough storage. Then, check your detection settings to ensure they are properly configured. If the issue persists, try resetting your camera or contacting Wyze support.
4. Can I prevent my Wyze camera from missing events?
A: Yes, you can adjust the detection zone and sensitivity settings on your Wyze camera to minimize the likelihood of missing events. Additionally, regularly checking your camera's connectivity and storage can help prevent issues.
5. How much storage do I need for my Wyze camera to record events?
A: The amount of storage you need will depend on the frequency and length of your camera's recordings. Wyze recommends a class 10 or above micro SD card with a minimum of 8GB of storage for basic recording, but for longer-term use, a higher-capacity card


Date of Award
2008
Document Type
Master's Thesis
Degree Name
Master of Science in Mechanical Engineering (MS)
College, School or Department Name
Department of Mechanical Engineering-Engineering Mechanics
Advisor
Jeffrey Allen
Abstract
The area of microfluidics has increased in popularity with such fields as MEMS, microreactors, microscaleheat exchangers, etc. A comprehensive understanding of dissipation mechanisms for fluid flow in microchannels is required to accurately predict the behavior in these small systems. Tests were performed using a constant pressure potential created by two immiscible fluids juxtaposed in a microchannel. This study focused on the flow and dissipation mechanisms in round and square microchannels. There are four major dissipation mechanisms in slug flow; wall shear, dissipation at the contact line, menisci interaction and the stretching of the interface. A force balance between the internal driving potential, viscous drag and interface stretching was used to develop a model for the prediction of the velocity of a bislug in a microchannel. Interface stretching is a dissipation mechanism that has been included due to the unique system properties and becomes increasingly more important as the bislug decreases in length.
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text:
A user has multiple rows of data for a custom MDF in Manage Data. When a document is generated, data from the first row is getting captured. The requirement is to have data from all the rows to the generated document.
Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental.
SuccessFactors Employee Central: Document Generation
Reproducing the Issue
A custom MDF object "Tuituion Reimbursement" has a child object "Classes". In the example, the user has three entries for Classes:
The template is configured as following:
The generated document contains data from only the first row:
Note that data from the second and third row are not in the generated document.
Incorrect mapping configuration.
In the template the table has placeholders in multiple rows. Hence, they are considered static which will fetch only the first value available.
For the placeholders to fetch multiple values in a table, all the placeholders should be in the same row. You can keep the first row for header and the second row will contain its respective placeholders. This would fetch the multiple values if present.
The template should look like:
Now, the generated document is:
Dynamic, KBA, LOD-SF-EC-DOC, Document Generation, Problem

source: openbmb/Ultra-FineWeb


Help Calculus Problem
Calculus
Tutor: None Selected Time limit: 1 Day
Under certain conditions, the number of cancer cells N(t) at time( t) increases at a rate of N'(t) =50e^kt . Suppose that at 5 days, the number of cells is growing at a rate of 150 cells per day. Determine a number of cells after 12 days if there were 100 cells initially.
Jul 22nd, 2015
Thank you for the opportunity to help you with your question!
dN/dt = 50 e^kt
N = 50/k e^kt +c
at t = 5 N' = 50 e^5k = 150
e^5k = 3
k = 1/5*ln3
N = 50/k e^kt +c = 250/ln3 *3^(t/5)+c
t =0 N= 100
100 = 250/ln3 +c
c = 100-250/ln3
N = 250/ln3(3^(t/5)-1)+100
t=12
N = 250/ln3*(3^2.4-1)+100 = 3951

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jul 22nd, 2015
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Oct 25th, 2016
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Welders Galore
Welders Galore
Ultimate Guide on How to Weld Cast Iron
Welding cast iron has the reputation of being a difficult task to perform. Although it is possible, how do you weld cast iron. It is a problematic material to weld due to the high carbon content that makes it brittle and highly prone to cracking.
It is doable and there are ways to make it work. Let's look into the details, including the best welding process and the best way to weld cast iron.
Is it Hard to Weld Cast Iron?
Welding Cast Iron
In short, this is not a straight ahead job for anyone really, but even more difficult for the beginner welders. Cast iron is an alloy of iron, 2-4% carbon, and varying amounts of other metals such as silicon, manganese, and traces of sulfur and phosphorus.
The metal is generally brittle, but the type of cast iron will determine whether it's weldable or not. After reading this article you will be at least better informed of how to go about this tricky, but not impossible, process.
Types of Cast Iron
Below is a brief description of the most common forms of cast iron, including their properties that determine the welding process.
Gray Iron
This is the most common form of cast iron used throughout the world. It is called "Gray Iron" because of it's graphite flaky structure. While it is more ductile than White Cast Iron it is still not easy to weld and requires some special techniques to be successful. The major challenge for welders is the possibility of causing a weld metal embrittlement (process of making it brittle) when the graphite flakes enter the weld pool during the welding process.
White Cast Iron
White cast iron is almost unweldable thanks to carbon making up most of its form. It retains the cementite crystalline structure making white cast iron super hard and brittle. It has very high resistance to abrasion and very good compressive strength but this also makes it difficult to machine and cut.
Malleable Cast Iron
Malleable Cast Iron is a product of white iron after some serious heat treatment and left to cool slowly thus changing the composition of the metal. It is similar to ductile cast iron in that it is more pliable and user friendly when it comes to welding.
Ductile Cast Iron
Ductile cast iron, also known as ductile iron, was created in 1943. The definition of "Ductile" is pliable and not brittle. In short ductile cast iron is comprised of a higher percentage of carbon making it more flexible than the standard cast iron or gray iron, which consequently makes ductile cast iron more machinable and weldable.
The Best Ways to Identify Different Cast Irons
 - Consulting the manufacturer, not always convenient to do this method.
 - Checking the color on the crack. Grey iron will show grey while white iron is brighter along the fracture.
 - Spark test, each type will give off different shapes and colors of sparks when grinding. This is the most popular method of identifying what type of cast iron you are dealing with.
 - Use a metal file to make a deep mark in the metal, may need some experience here.
Steps to Weld Cast Iron
Once you have identified the particular type of cast iron you are working with, there are some simple general pre-welding steps to follow.
 1. Cleaning the cast iron.
 2. Choosing the correct pre-heat temperature.
 3. Selecting the right welding technique.
Step 1. Cleaning the Welding Area
As with most metals you always will want to start with a clean surface and cast iron is no different. This means things like rust and other impurities on the iron.
You need to be careful that the target area is perfectly dry of all types of foreign materials including water, oils or grease.
You will also need to go in with mineral spirits to remove any surface graphite before welding. Pre-heating the welding area will ensure any entrapped gases are released before the welding process begins.
Step 2. Choosing the correct pre-heat temperature
Learning proper heating and cooling control is a crucial skill to have under your belt before attempting to weld cast iron. It's an important step to prevent stress cracking and minimize any residual stress build-up that may lead to cracking.
When a metal is heated, it expands. If the metal is uniformly heated, no stress would be caused, but localizing the heat in a small region causes stress build-up, leading to cracking.
Ductile metals can handle it by stretching from the stress, but cast iron has low ductility meaning it will crack. Pre-heating reduces the thermal gradient between the cooler surrounding area and the target area. If possible, heat up the whole casting but if not, heat up as large an area as possible.
Steps in Welding Cast Iron
Preheat the iron to _PHONE_ degrees Fahrenheit to minimize internal stresses in the material. You can use an infrared thermometer or observe when the metal starts glowing dull red, which happens at around 900 degrees Fahrenheit. Perform the welding in a dark room so you can notice when the target area starts glowing. Allow it to just glow so then you know that you have achieved the right temperature for welding.
Minimizing the heat during the actual welding process is the next best strategy when pre-heating is not possible. This may require you to stop and start a few times to prevent over heating the welding area. Welding cast iron at high temperatures is a recipe for disaster.
In the past I have used different ways of pre heating cast iron before welding. You could simply use an electric heat gun or if it is a hot day just leave the job in the sun for awhile. Anything to heat the metal is better than leaving it cold.
Step 3. Selecting the right Welding Technique
Choosing the right welding technique comes down to preference, provided it's suitable for the alloy being welded. You also need to choose the best filler. The most common welding techniques are stick, TIG, MIG, and oxy-acetylene welding.
What is the Best way to Weld Cast Steel?
Once you have cleaned the metal, the crack will be visible as a dark line. Drill a hole on either end of the crack to prevent the crack from extending. Failure to drill on both ends of the crack creates the possibility of cracking as you weld, or the part will break over time. I also recommend to create a small channel in the metal to hold the weld by using an angle grinder.
Caution: do not cool the finished product by immersing into water! This will instantly create a major crack.
How to Weld Cast Iron Using Different Types of Welders
The kind of welder to use will be determined by the surface you are welding, and the end result expected. For instance, if you are welding a machined surface, you would use the TIG weld as a spatter from the stick, and MIG welding would cause unnecessary damage to the surface.
1/ Stick Welding
Also known as metal arc welding (MMA), this method uses an electrode covered with flux, and it's the best welding process for cast iron. The electrode required will depend on its application, color match required, and the machining to be done post welding.
The main types of electrodes used are iron, nickel, or copper-based. Nickel-based electrodes are the most popular for cast iron welding as they are stronger, therefore reducing the resistance to cracking.
The process involves melting an electric arc between the electrode and the welding area. Ensure the arc is directed towards the weld pool to minimize dilution that would occur when directed toward the base metal. You should also use the lowest setting to reduce heat stress and avoid damaging the metal.
2/ Oxy-acetylene Welding
This process uses an electrode, but instead of an electric current, the method utilizes oxy-acetylene to generate heat. The slow heating and low amount of heat used in the process results in a large HAZ (heat affected zone), so care must be taken to avoid oxidizing the cast iron. The rod should be welded in the molten pool rather than directly by the flame.
3/ Braze Welding
Brazing is commonly used for welding cast iron parts as it causes minimal impact on the base metal. The process involves using a filler with a lower melting point than cast iron. The filler, therefore, adheres to the surface of the cast iron rather than diluting into the weld pool.
For this technique to work seamlessly, you need to start off with a clean surface. You can also use flux to prevent oxidizing and promote the wetting of the surface.
4/ TIG Welding
TIG welding is generally not recommended due to the highly localized heating characteristics. The skills of the welder also determine the overall outcome of this welding technique.
Frequently Asked Questions about How to Weld Cast Iron
How can I weld cast iron exhaust manifold?
The key to welding a cast iron exhaust manifold is to go low and slow to avoid creating stress that will lead to cracking.
What kind of welding rod do you use on cast iron?
Nickel alloy rods are the most popular for welding cast iron. They are stronger with a low thermal coefficient which reduces welding stress.
Can cast iron be welded to steel?
It's possible but not recommended due to the differences in these metals' chemical and mechanical properties. For instance, steel has higher tensile strength than cast iron, meaning it can withstand pressure before cracking, but cast-iron cracks under stress.
How do you weld cast iron without cracking it?
It's recommended to preheat the surface you want to work on or use minimal heat where preheating is not possible.
ConclusionHow to


text:
The Justus Liebig Laboratory in Gießen, Germany, has been awarded the EuChemS Historical Landmarks Award in recognition of its pioneering research and teaching role in the development of chemistry as a modern science. The award was presented in a ceremony where a plaque was installed at the entrance of the building, where Liebig conducted his research and trained international scientists from 1824 to 1852. The building is a museum since 1920.
The Justus Liebig Society, which operates the museum, aims to preserve the historical and scientific context of Liebig's laboratory. The museum has an exhibition area of 379 m² and offers experimental lectures to the general public. It receives approximately 8,000 visitors from all over the world every year.
The ceremony included speeches from Gerd Hamscher (pictured on the right), Chairman of the Justus Liebig Society and Professor at Justus Liebig University in Gießen, Martin Rößler, Regierungsvizepräsident of the Gießen Regional Council of the State of Hesse, and Frank-Tilo Becher, Mayor of the City of Gießen. Angela Agostiano (pictured), President-elect of EuChemS and Professor at the University of Bari, Italy, introduced the work of EuChemS and the Historical Landmarks Award programme.
The Historical Landmarks Award recognizes sites that have played a decisive role in shaping the cultural fabric and history of Europe, to acknowledge the importance of chemistry for European history and cultural heritage. It was introduced in 2018 and has been given to six other sites in Europe: the Ytterby Mine in Sweden, the ABEA industrial complex on Crete in Greece, the mines of Almaden in Spain, the Edessa hemp factory in Greece, the research station on the Jungfraujoch in Switzerland, and the chemical laboratories in Coimbra in Lisbon and Porto in Portugal. The Liebig Laboratory is the first site in Germany to be awarded.
Christoph Meinel, Chairman of the GDCh Commission Historical Sites of Chemistry and Emeritus Professor at the University of Regensburg, Germany, and Peter R. Schreiner (pictured below), Professor at the Justus Liebig-University Gießen, provided an introduction to Liebig's life and work. Justus von Liebig, one of the founders of organic chemistry, made significant contributions to agricultural and biological chemistry. He transformed chemistry education by combining research and teaching in a laboratory, engaging his students in a way that became the norm. Liebig was also a prominent European figure, mentored by influential chemists (Karl Wilhelm Gottlob Kastner, Joseph Louis Gay-Lussac) and author of the popular book Chemische Briefe (1844), which was widely translated. He founded Annalen der Chemie (1832), a leading chemistry journal still in circulation today under the name European Journal of Organic Chemistry.
|Peter Schreiner explains Liebig's Five-Bulb Apparatus for the elemental analysis of organic substances.
Also of Interest
The place of Liebig's first experimental lectures and part of the Liebig Museum caught fire
24 destinations for your bucket list—join our chemistry Europe trip
Remembering Emanuel August Merck (1855 – 1923) on his 100th death anniversary
2017-2019 President of the Italian Chemical Society (SCI), Angela Agostiano, about her vision for chemical societies and the societal importance of chemistry

source: m-a-p/FineFineWeb


text:
||This article needs more links to other articles to help integrate it into the encyclopedia. (December 2012)|
In the context of software or information modeling, a happy path is a default scenario featuring no exceptional or error conditions, and comprises the sequence of activities executed if everything goes as expected. For example, the "happy path" for a function validating credit card numbers would be where none of the validation rules raise an error, thus letting execution continue successfully to the end, generating a positive response.
Process steps for a happy path are also used in the context of a use case. In contrast to the happy path, process steps for alternate paths and exception paths may also be documented.
Happy path testing is a well-defined test case using known input, which executes without exception and produces an expected output.
Happy day scenario and Golden path are synonyms for happy path.
|This computer programming-related article is a stub. You can help Wikipedia by expanding it.|

source: HuggingFaceFW/fineweb-edu


text:
Lab Write Up Essay Sample
- Word count: 754
- Category: biology
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Lab Write Up Essay Sample
The tooth formula is a shorthand technique that biologist use to keep track of the teeth on a particular jaw. The formula consisted of two lines, top jaw and bottom jaw, which were used to count how many incisors, canines, premolars, and molar teeth a species had. Species A, Odocoileus virginiaus (white-tailed deer), had a tooth formula of 0033/3133. On the top jaw, the deer had zero incisor and canine teeth but have three of both the premolars and molars. On the bottom jaw, the deer had three incisors, one canine, three premolars, and three molars. Species B, Canis latrans (coyote), had a tooth formula of 3142/3143.
On the top jaw, the coyote had three incisors, one canine, four premolars, and two molars. On the bottom jaw, the coyote has three incisors, one canine, four premolars, and three molars. Both the deer and coyote skull were long and skinny towards the nose and mouth.
The coyote skull had a much rounder nose than the deer. Species C, Homo sapiens (human), had a tooth formula of 2122/2122. On both the top and bottom jaws, there were two incisors, one canine, two premolars, and two molars. In comparison to the deer and coyote skull, the human was an outcast. The human skull was a short distance from the back of the skull to the front. The human skull was very different in bone structure and longer in height than the deer and coyote skulls.
The tooth width from the deer, coyote, and human had a wide range in variety (Figure 1). There was a direct relationship between premolars one and two
Figure 1. Different tooth types in deer, coyote, and human compared by tooth width (cm). using the deer and human. The coyote had much smaller premolars than the deer and human. Figure 1 shows how similar the tooth width of a deer and coyote are. The cusps on the molars were very similar between the coyote and the human. The coyote and human molar cusps were very similar in molars one and two.
In Figure 1, the human and coyote tooth width are almost displayed the same. On molar three, the cusp sizes were very similar between the deer and coyote. The jaw length of a deer, 6.151 cm, is closest to a coyote, 5.507 cm, making the molars towards the back of the jaw more similar to each other than humans. Figure 1 gives a visual on the numbers for data and comparisons.
The tooth sharpness of each animal depended on the type of diet each animal had (Figure 2). The premolars had a linear pattern between the three animals.
Figure 2: Different tooth types of deer, coyote, and humans compared by tooth sharpness (deg.). Coyote's had the sharpest premolars, deer's in-between, and human's with the dullest premolars. Figure 2 compares the degrees of each premolar and each time, the pattern was followed. The molars had no relationship between each animal. Molar one cusp one and two are most closely related in both deer and humans. Molar two cusps one and two are most closely related to deer and human out of the three animals.
The cusps were similar but have about a ten-degree sharpness difference. The molars and cusps human's and deer's and human's were similar but have about a twelve-degree difference between sharpness. In the second molar of the human, the cusps were less sharp than the deer. Figure 2 displays that there was no pattern between the molars of the three animals.
Taking the calculated number of tooth width and dividing it by the matching jaw length found relative tooth width (Figure 3). Relative tooth width displays the tooth width relative to the length of the jaw. The jaw length of a deer was 6.151 cm,
Figure 3: Displays three different animals and how their tooth width is related to their jaw length. which was the longest jaw out of all species compared in this experiment. The coyote had a jaw length of 5.507cm while the human had a jaw length of 2.932 cm. Premolar one of the deer was most similar to the coyote. Premolar's 1, 2, and 3 were in proportion between the human and deer. The relative tooth width of the deer was very close in range while the coyote was not. By looking at Figure 3, this can be determined. The human has the highest relative tooth width out of the three species being compared.


Skip to main content
Version: 0.42
3. Resource Contract Tutorial
Overview
tip
Open the starter code for this tutorial in the Flow Playground:
_URL_
The tutorial will ask you to take various actions to interact with this code.
info
The playground code that is linked uses Cadence 0.42, but the examples use Cadence 1.0 to show how each contract, transaction and script is implemented Cadence 1.0. The link will still work with the current version of the playground, but when the playground is updated to Cadence 1.0, the link will be replaced with a 1.0-compatible version.
info
Instructions that require you to take action are always included in a callout box like this one. These highlighted actions are all that you need to do to get your code running, but reading the rest is necessary to understand the language's design.
This tutorial builds on the previous Hello World tutorial. Before beginning this tutorial, you should understand :
This tutorial will build on your understanding of accounts and how to interact with them by introducing resources. Resources are one of Cadence's defining features.
In Cadence, resources are a composite type like a struct or a class, but with some special rules. Here is an example definition of a resource:
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access(all)
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resource Money {
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access(all) let balance: Int
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init() {
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self.balance = 0
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}
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}
See, it looks just like a regular struct definition! The difference is in the behavior.
Resources are useful when you want to model direct ownership. Traditional structs or classes from other conventional programming languages are not an ideal way to represent ownership because they can be copied. This means a coding error can easily result in creating multiple copies of the same asset, which breaks the scarcity requirements needed for these assets to have real value. We have to consider loss and theft at the scale of a house, a car, or a bank account with millions of dollars, or a horse. Resources, in turn, solve this problem by making creation, destruction, and movement of assets explicit.
In this tutorial, you will:
 1. Deploy a contract that declares a resource
 2. Save the resource into the account storage
 3. Interact with the resource we created using a transaction
Implementing a Contract with Resources
To interact with resources, you'll learn a few important concepts:
Let's start by looking at how to create a resource with the create keyword and the move operator <-.
You use the create keyword used to initialize a resource. Resources must be created before you can use them.
The move operator <- is used to move a resource into a variable. You cannot use the assignment operator = with resources, so when you initialize a resource you will need to use the move operator <-.
info
Open the Account 0x01 tab with file named HelloWorldResource.cdc.
HelloWorldResource.cdc should contain the following code:
HelloWorldResource.cdc
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access(all)
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contract HelloWorld {
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// Declare a resource that only includes one function.
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access(all)
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resource HelloAsset {
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// A transaction can call this function to get the "Hello, World!"
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// message from the resource.
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access(all)
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view fun hello(): String {
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return "Hello, World!"
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}
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}
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// We're going to use the built-in create function to create a new instance
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// of the HelloAsset resource
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access(all)
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fun createHelloAsset(): @HelloAsset {
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return <-create HelloAsset()
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}
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init() {
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log("Hello Asset")
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}
_26
}
info
Deploy this code to account 0x01 using the Deploy button.
We start by declaring a new HelloWorld contract in account 0x01, inside this new HelloWorld contract we:
 1. Declare the resource HelloAsset with public scope access(all)
 2. Declare the resource function hello() inside HelloAsset with public scope access(all)
 3. Declare the contract function createHelloAsset() which creates a HelloAsset resource
 4. The createHelloAsset() function uses the move operator (<-) to return the resource
This is another example of what we can do with a contract. Cadence can declare type definitions within deployed contracts. A type definition is simply a description of how a particular set of data is organized. It is not a copy or instance of that data on its own. Any account can import these definitions and use them to create an object that follows the imported definition or to interact with other objects of those types.
This contract that we just deployed declares a definition for the HelloAsset resource and a function to create the resource.
Let's walk through this contract in more detail, starting with the resource. Resources are one of the most important things that Cadence introduces to the smart contract design experience:
_10
access(all)
_10
resource HelloAsset {
_10
access(all)
_10
view fun hello(): String {
_10
return "Hello, World!"
_10
}
_10
}
Resources
The key difference between a resource and a struct or class is the access scope for resources:
 - Each instance of a resource can only exist in exactly one location and cannot be copied. Here, location refers to account storage, a temporary variable in a function, a storage field in a contract, etc.
 - Resources must be explicitly moved from one location to another when accessed.
 - Resources also cannot go out of scope at the end of function execution. They must be explicitly stored somewhere or destroyed.
These characteristics make it impossible to accidentally lose a resource from a coding mistake.
_10
init() {
_10
// ...
All composite types like contracts, resources, and structs can have an optional initializer that only runs when the object is initially created. Cadence requires that all fields must be explicitly initialized, so if the object has any fields, this function has to be used to initialize them.
Contracts also have read and write access to the storage of the account that they are deployed to by using the built-in self.account field. This is an account reference (&Account), authorized to access and manage all aspects of the account, such as account storage, keys, and contracts.
This contract's initializer is simple, it logs the phrase "Hello Asset" to the console.
A resource can only be created in the scope that it is defined in.
This prevents anyone from being able to create arbitrary amounts of resource objects that others have defined.
The Move Operator (<-)
In this example, we declared a function that can create HelloAsset resources:
_10
access(all)
_10
fun createHelloAsset(): @HelloAsset {
_10
return <-create HelloAsset()
_10
}
The @ symbol specifies that it is a resource of the type HelloAsset, which we defined in the contract. This function uses the move operator to create a resource of type HelloAsset and return it. To create a new resource object, we use the create keyword
Here we use the <- symbol. This is the move operator. The move operator <- replaces the assignment operator = in assignments that involve resources. To make the assignment of resources explicit, the move operator <- must be used when:
 - the resource is the initial value of a constant or variable,
 - the resource is moved to a different variable in an assignment,
 - the resource is moved to a function as an argument
 - the resource is returned from a function.
When a resource is moved, the old location is invalidated, and the object moves into the context of the new location.
So if I have a resource in the variable first_resource, like so:
_10
// Note the '@' symbol to specify that it is a resource
_10
var first_resource: @AnyResource <- create AnyResource()
and I want to assign it to a new variable, second_resource, after I do the assignment, first_resource is invalid because the underlying resource has been moved to the new variable.
_10
var second_resource <- first_resource
_10
// first_resource is now invalid. Nothing can be done with it
Regular assignments of resources are not allowed because assignments only copy the value. Resources can only exist in one location at a time, so movement must be explicitly shown in the code by using the move operator <-.
Create Hello Transaction
Now we're going to use a transaction to that calls the createHelloAsset() function and saves a HelloAsset resource to the account's storage.
info
Open the transaction named Create Hello.
Create Hello should contain the following code:
CreateHello.cdc
_24
// Transaction1.cdc
_24
// This transaction calls the createHelloAsset() function from the contract
_24
// to create a resource, then saves the resource in account storage using the "save" method.
_24
import HelloWorld from 0x01
_24
_24
transaction {
_24
_24
/// 'auth(SaveValue) &Account' means that it is an account object
_24
/// that has the 'SaveValue' authorization entitlement, which means
_24
/// that this transaction can't do anything with the


text:
for preschool children
See your children the way Jesus sees them, love them the way Jesus loves them, treat them the way Jesus treats them
Little Blessings Bible Lessons are a series of printable preschool Bible lessons in English and in Spanish. They begin with creation and end with Jesus coming back for us.
What the Lessons teach
The lessons teach young children the same Bible truths we adults hold dear, just in smaller pieces. They will learn about the character of God. Once they understand His character, children will want to respond to Him with all their hearts. Little Blessings Bible Lessons are full of truths about the goodness and love of God.
Why the Lessons are effective
These Bible lessons for preschoolers are designed for young children to learn by seeing, hearing and doing. Your children will see and hear each story using a wide variety of bright and colorful visual aids and demonstrations. They will do many activities that reinforce the stories. There are Bible verses for children to learn during the exciting, "My Bible Verse" time. Each lesson focuses on one truth in the Bible text. All stories, crafts and activities reinforce the lesson focus.
Who uses the Lessons
Parents, teachers, and missionaries have used Little Blessings Bible Lessons to reach the hearts of young children with God's Word all over the world. The lessons are used in homes, nursery and toddler classes, Sunday School classes, children's church, preschools, day-cares, special needs classes, missionary schools, and orphanages. These children's Bible lessons are fun for toddlers to young grade school kids!
Lessons that are affordable
These printable Bible lessons for children can be purchased on a CD and are affordable for everyone. The CD contains a curriculum of 52 lessons in English and the same 52 lessons translated into Spanish. If you want to try using Little Blessings Bible Lessons in your home or classroom, there are always free lessons on the Free Lessons page. These are complete Bible lessons for preschool children which may be printed and taught.
Preschool Bible Lessons with Stories, Crafts, and Bible Verses
May we help you find something on this site?


AdSenseHeader
Bulk Loading Data into Cassandra Using SSTableLoader
Why Use SSTableLoader:
 When you want to move the data from any database to Cassandra database the best option is SSTableloader in Cassandra. By using this we can transfer the data very fast.
Steps to loading the data into Cassandra:
 - Create Keyspace in the Casssandra.
 - Create table based on your requirement using CQLSH.
 - Create a .csv file from the existing data
 - Then use SSTableloader move the data into Cassandra.
 Step1: Creating Keyspace
 CREATE KEYSPACE sample WITH REPLICATION = {'class' : 'SimpleStrategy', 'replication_factor' : 1 };
Step 2: Creating table based on your requirement .
 CREATE TABLE sample.users (
 key uuid,
 firstname ascii,
 lastname ascii,
 password ascii,
 age ascii,
 email ascii,
 PRIMARY KEY (key, firstname));

 In the above i am creating table users .Primary keys are key and firstname.
Step 3:
Creating the .csv based on your table.
How to create CSV file using Java:
Sample program to create CsvFile:
import java.io.FileWriter;
public class CreateCsv {
 public static void main(String[] args) {
 generateCsvFile("E:/csv/records.csv");
 }
 public static void generateCsvFile(String csvName) {
 try {
 FileWriter writer = new FileWriter(csvName);
 for (int i = 0; i < _PHONE_; i++) {

 writer.append(Integer.toString(i));
 writer.append(',');
 writer.append("26");
 writer.append('\n');

 }
 writer.flush();
 writer.close();
 System.out.println("Success");
 } catch (Exception e) {
 e.printStackTrace();
 }
 }
}
These are mandatory steps after the create project for sstableloader
· In the project to upload the all the jars of Cassandra. These jars all are available in lib folder and tools folder of Cassandra tar or zip file provided by the Datastax.
· And also upload the Cassandra.yaml file of conf folder in Cassandra tar or zip file of Datastax.
· And also upload the .csv file to the project.For example I put the sstable.csv in my project.
Step 4:
Creating the data for sstableloader using java program.
package com.cassandra.ramu;
import static org.apache.cassandra.utils.ByteBufferUtil.bytes;
import static org.apache.cassandra.utils.UUIDGen.decompose;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
import org.apache.cassandra.db.marshal.AbstractType;
import org.apache.cassandra.db.marshal.AsciiType;
import org.apache.cassandra.db.marshal.CompositeType;
import org.apache.cassandra.db.marshal.CompositeType.Builder;
import org.apache.cassandra.db.marshal.UUIDType;
import org.apache.cassandra.dht.Murmur3Partitioner;
import org.apache.cassandra.io.sstable.SSTableSimpleUnsortedWriter;
public class SStableBuilder {
 static String csvfilename = "sstable.csv";
 public static void main(String[] args) {

 try {
 buildSStables();
 } catch (Exception e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }
 }

 public static void buildSStables() throws Exception {
 String keyspace = "sample";
 String table = "users";
 File directory = new File(keyspace + "/" + table);

 if (!directory.exists()) {
 directory.mkdirs();
 }
 List<AbstractType<?>> compositeColumnValues = new ArrayList<AbstractType<?>>();
 compositeColumnValues.add(AsciiType.instance);
 compositeColumnValues.add(AsciiType.instance);
 CompositeType compositeColumn = CompositeType.getInstance(compositeColumnValues);
 SSTableSimpleUnsortedWriter bulkWriter = new SSTableSimpleUnsortedWriter(
 directory, new Murmur3Partitioner(), keyspace, table,
 compositeColumn, null, 64);
 // Create a single timestamp for each insert
 long timestamp = System.currentTimeMillis() * 1000;
 BufferedReader reader = new BufferedReader(new FileReader(csvfilename));
 String line;
 int lineNumber = 1;
 CsvEntry entry = new CsvEntry();
 while ((line = reader.readLine()) != null) {
 if (entry.parse(line, lineNumber)) {
 ByteBuffer uuid = ByteBuffer.wrap(decompose(entry.key));
 bulkWriter.newRow(uuid);

 Builder builder = compositeColumn.builder();
 builder.add(bytes(entry.firstname));
 builder.add(bytes("firstname"));
 bulkWriter.addColumn(builder.build(), bytes(entry.firstname), timestamp);

 builder = compositeColumn.builder();
 builder.add(bytes(entry.firstname));
 builder.add(bytes("lastname"));
 bulkWriter.addColumn(builder.build(), bytes(entry.lastname), timestamp);

 builder = compositeColumn.builder();
 builder.add(bytes(entry.firstname));
 builder.add(bytes("password"));
 bulkWriter.addColumn(builder.build(), bytes(entry.password), timestamp);

 builder = compositeColumn.builder();
 builder.add(bytes(entry.firstname));
 builder.add(bytes("age"));
 bulkWriter.addColumn(builder.build(), bytes(String.valueOf(entry.age)), timestamp);

 builder = compositeColumn.builder();
 builder.add(bytes(entry.firstname));
 builder.add(bytes("email"));
 bulkWriter.addColumn(builder.build(), bytes(entry.email), timestamp);

 }
 lineNumber++;
 }
 reader.close();
 System.out.println("Success");
 bulkWriter.close();
 System.exit(0);
 }
 static class CsvEntry {
 UUID key;
 String firstname;
 String lastname;
 String password;
 long age;
 String email;
 boolean parse(String line, int lineNumber) {
 // Ghetto csv parsing
 String[] columns = line.split(",");
 if (columns.length != 6) {
 System.out.println(String.format(
 "Invalid input '%s' at line %d of %s", line,
 lineNumber, csvfilename));
 return false;
 }
 try {
 key = UUID.fromString(columns[0].trim());
 firstname = columns[1].trim();
 lastname = columns[2].trim();
 password = columns[3].trim();
 age = Long.parseLong(columns[4].trim());
 email = columns[5].trim();
 return true;
 } catch (NumberFormatException e) {
 System.out.println(String.format(
 "Invalid number in input '%s' at line %d of %s", line,
 lineNumber, csvfilename));
 return false;
 }
 }
 }
}
In the above SStableBuilder java program create a data for loading the data into Cassandra.
Before run the SStableBuilder.java the project structure as fallows.
After run the sstableBuilder.java the project structure as fallows.
After run the sstableBuilder.java program created data in the above format.
Step 5:
 Run the SSTABLELOADER command from the cmd.
CMD:
 sstableloader -d 127.0.0.1 pathofaboveusers
 for example above workspace location in D drive .You can go to D drive then give the path upto users folder
for example
In the above I was declare in my Cassandra.yaml file put my IP.But If you declare cassandra.yaml file 127.0.0.1 you can put the 127.0.0.1.
Path is upto your folder where the data is created through sstablebuilder program


text:
SQLite::VirtualTable::Pivot::Cursor - a cursor for a pivot table query
Objects in this class represent cursors for queries on pivot tables.
They maintatin a statement handle corresponding to an unpivotted query on the base table. The pivotting operation is done one row at a time, as data is returned; i.e. we order by the id, and group on the fly.
It must be possible for multiple cursors to exist at once on the same pivot table, in case it occurs more than once in a query.


The Apprentice Formare Project is an iniciative of Iochpe Foundation, a non-governmental organization which is focused on making changes through education. The activities are developed in association with mid-size and large size companies that offer vocational studies. The students are young people that live under vulnerable social conditions.
The main goal is to turn the company into a school - which means learning while practicing, facing the daily challenges and exploring the knowledge of each company.And who could be better educators than the company's employees? The collaborators work willingly, sharing their expertise and promoting a mutual professional qualification process. The volunteers training and the didactic material are both provided by Iochpe Foundation.
Formare Project strenghtens a new and promising education approach: not only preparing professionals to the labour market, but also individuals that can handle obstacles and competition at work. In 2009, SYL becomes a part of this history. Our first group of students had math, computer science, metrology, technical design and many other classes.
Beyond the education, the company also offers transportation, food, groceries and medical assistance and dental care. Currently, we have 16 students at our company. Since our first group, many of them were hired after the graduation.
 +55 (15) 3235-4900


Vocabulary
math.vectors
Inputs
ua sequence
va sequence
Outputs
wa sequence
Word description
Creates a new sequence of the same type as and twice the length of u and v by interleaving the elements of u and v.
Examples
USING: kernel math.vectors prettyprint ; { "A" "B" "C" "D" } { "1" "2" "3" "4" } vmerge .
{ "A" "1" "B" "2" "C" "3" "D" "4" }
See also
(vmerge), (vmerge-head), (vmerge-tail)
Definition
Methods


text:
DFBLasers: 1700 nm – 2400 nm for gas sensing
nanoplus offers FP laser diodes at any wavelength between 1700 nm and 2400 nm.
Key features of nanoplus FP laser diodes
- spectral multimode
- lateral single mode
- continuous wave
- room temperature
- custom wavelengths
Why choose nanoplus FP laser diodes
- precise selection of target wavelength
- typically > 5 mW output power
- small size
- easy usability
- high efficiency
- long-term stability
For more than 15 years nanoplus has been the technology leader for lasers in gas sensing. We produce lasers at large scale at our own fabrication sites in Gerbrunn and Meiningen. nanoplus cooperates with the leading system integrators in the TDLAS based analyzer industry. More than 20,000 installations worldwide prove the reliability of nanoplus lasers.
Quick description of nanoplus FP laser technology
nanoplus uses a unique and patented technology for FP laser diode manufacturing. We follow a ridge waveguide approach, which is independent of the material system.
Related Information for nanoplus FP laser diodes between 1700 nm and 2400 nm
The following table summarizes the typical FP laser specifications in the 1700 nm to 2400 nm range:


text: Given a set of low resolution camera images of a Lambertian surface, it is possible to reconstruct high resolution luminance and height information, when the relative displacements of the image frames are known. We have proposed iterative algorithms for recovering high resolution albedo with the knowledge of high resolution height and vice versa. The problem of surface reconstruction has been tackled in a Bayesian framework and has been formulated as one of minimizing an error function. Markov Random Fields (MRF) have been employed to characterize the a priori constraints on the solution space. As for the surface height, we have attempted a direct computation without refering to surface orientations, while increasing the resolution by camera jittering.


algorithmic modeling for Rhino
I want to use kangaroo to achieve a minimal surface ( close to the one in the attached picture) where the open edges are made from 2 catenary Curves. How can I keep the two catenary curves in their place ( perpendicular to the XY plane)...
Views: 2938
Replies to This Discussion
Here is one way to set this up.
Turning the surface into a mesh, fixing the corners and letting the boundary vertices slide along the outer edge.
Note that this is a tensile surface, but not actually a true minimal one - that is a bit more work to set up using the soap film element.
Thank you a lot for your explanation, I will work on the adding soap film element..
I am not that expert in this topic but what I know is that you can achieve a minimal surface as a version of an existing one you already created, even if the surface is not flat the mean curvature can still be zero, here is an explanation:
"Minimal surface curvature planes. On a minimal surface the curvature along the principal curvature planes are equal and opposite at every point. This makes the mean curvature zero"
Thank you so much I will try them
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text:
Empower to Innovate. Innovate to Empower
LAS is a mission-oriented translational research lab focused on the development of new analytic technology and analysis tradecraft. The new technologies will help us understand the underlying scientific principles and analytics required to meet the complex and dynamic challenges presented by "Big Data." The new tradecraft will help us discover, understand, and enhance critical aspects of intelligence analysis. These new technologies and tradecraft will be brought together through the development of user experiences that allow engagement with the data, tools, and techniques to achieve mission outcomes.


text:
The world of Managed Service Providers (MSPs) is evolving rapidly, with increasing demands for efficiency, scalability, and innovation. In this dynamic environment, the role of a Virtual System Architect (VSA) is becoming increasingly critical. But what exactly is a VSA, and how can they transform the operations of an MSP? Let's dive in.
What is a Virtual System Architect (VSA)?
A Virtual System Architect (VSA) is a specialized role that goes beyond the traditional scope of a virtual assistant. VSAs are experts in designing, optimizing, and maintaining efficient systems for businesses. Here's what sets them apart:
- Advanced Skills and Expertise: Unlike standard virtual assistants, VSAs possess advanced knowledge in system architecture. They are adept in creating and managing digital systems that streamline and automate business processes.
- Focus on Optimization: VSAs analyze existing workflows and processes to identify bottlenecks and inefficiencies. Their primary goal is to design solutions that optimize these processes, resulting in increased productivity and efficiency.
- Technical Proficiency: VSAs are well-versed in various technical tools and platforms, enabling them to implement and manage complex systems. They often handle tasks that require a higher level of technical expertise, such as database management, software integrations, and process automation.
- Customized Solutions: Each VSA tailors their approach to the unique needs of a business. They understand that each organization has its own set of challenges and goals, and they work closely with clients to develop bespoke solutions.
- Long-Term Strategic Planning: VSAs think beyond immediate fixes. They are involved in long-term strategic planning, ensuring that the systems they develop are scalable and adaptable to future business changes.
By integrating a VSA into their team, businesses, especially Managed Service Providers (MSPs), can expect a significant transformation in their operational efficiency and overall system management. A VSA's role is pivotal in enabling organizations to stay agile and competitive in a rapidly evolving digital landscape.
Why MSPs Need Virtual System Architects
Managed Service Providers (MSPs) operate in a fast-paced, technology-driven environment where efficiency and system optimization are key to success. This is where Virtual System Architects (VSAs) become invaluable.
- Enhanced Efficiency and Productivity: VSAs specialize in streamlining processes, allowing MSPs to operate more efficiently. By automating routine tasks and optimizing workflows, VSAs enable MSPs to focus on core business activities and strategic growth.
- Cost-Effective Solution: Hiring a VSA is a cost-effective alternative to employing full-time system architects or IT specialists. VSAs offer the expertise without the overhead costs associated with full-time employees, providing MSPs with a flexible and scalable solution.
- Technical Expertise and Support: MSPs often handle complex technical infrastructures. VSAs bring in the necessary technical know-how to manage and optimize these systems, ensuring they run smoothly and are up-to-date.
- Customized System Solutions: Every MSP has unique needs and challenges. VSAs understand this and work closely with MSPs to develop customized solutions that meet their specific requirements, ensuring that the systems not only function efficiently but also align with the MSP's business objectives.
- Scalability and Growth: As MSPs grow, their systems need to scale accordingly. VSAs play a crucial role in ensuring that the infrastructure can handle this growth, adapting and scaling systems as needed.
- Proactive Problem-Solving: VSAs don't just respond to issues; they anticipate and mitigate them. Their proactive approach in system management means fewer disruptions and downtime for MSPs.
In summary, Virtual System Architects are the backbone of efficient, scalable, and technically sound operations for MSPs. They bring a blend of expertise, cost-effectiveness, and tailored solutions, making them an essential component in the growth and success of any Managed Service Provider.
The Pro Sulum Difference
Pro Sulum distinguishes itself in the virtual assistant market, particularly for Managed Service Providers (MSPs), with unique offerings:
- Focused Specialization: Pro Sulum's Virtual System Architects (VSAs) undergo targeted training in system architecture and process optimization. This specialized skill set elevates them beyond typical virtual assistants, enabling them to manage complex tasks and contribute strategically.
- Seamless Team Integration: A key Pro Sulum philosophy is the seamless integration of VSAs into client teams. This ensures that VSAs collaborate effectively with existing staff, enhancing productivity and teamwork.
- High Retention and Quality Assurance: Pro Sulum prides itself on high retention rates, reflecting the satisfaction and quality of their VSAs. This stability is crucial for fostering long-term, effective client relationships.
- Tailored Client-VSA Matching: Pro Sulum's approach to matching clients with VSAs is meticulous, considering factors like specific needs, business objectives, and preferred working hours to ensure optimal compatibility and productivity.
- Client-Centered Onboarding: The onboarding process at Pro Sulum is designed with the client's needs at the forefront, ensuring smooth transitions and sustained support for both clients and VSAs.
In essence, Pro Sulum's approach is about delivering tailored expertise and efficiency, making it a top choice for MSPs seeking comprehensive system management and process optimization solutions.
The integration of a Virtual System Architect from Pro Sulum can be a transformative step for Managed Service Providers. With specialized skills in system architecture and a focus on process optimization, VSAs offer more than just administrative support. They are pivotal in streamlining operations, enhancing efficiency, and contributing to strategic growth. By choosing Pro Sulum, MSPs can access a unique blend of expertise, tailored solutions, and a partnership designed for long-term success.
Enhance Your MSP's Efficiency: Discover the Impact of a Virtual System Architect
Ready to elevate your Managed Service Provider's operational efficiency? Learn how a Virtual System Architect can transform your business processes. Dive into the world of streamlined workflows and strategic growth with Pro Sulum. Explore the Possibilities and see the difference a VSA can make.


text:
The clock Command
The clock command has facilities for getting the current time, formatting time values, and scanning printed time strings to get an integer time value. The clock command was added in Tcl 7.5. Table 13-1 summarizes the clock command:
Table 13-1. The clock command.
|clock clicks||A system-dependent high resolution counter.|
|clock format value?-format str?||Formats a clock value according to str.|
|clock scan string?-base clock??-gmt boolean?||Parses date string and return seconds value. The clock value determines the date.|
|clock seconds||Returns the current time in seconds.|
The following command prints the current time:
clock format [clock seconds]
=> Sun Nov 24 14:57:04 1996
The clock seconds command returns the current time, in seconds since a starting epoch. The clock format command formats an integer value into a date string. It takes an optional argument that controls the format. The format strings contains % keywords that are replaced with the year, month, day, date, hours, minutes, and seconds, in various formats. The default string is:
%a %b %d %H:%M:%S %Z %Y
Tables 13-2 and 13-3 summarize the clock formatting strings:
Table 13-2. Clock formatting keywords.
|%%||Inserts a %. |
|%a||Abbreviated weekday name (Mon, Tue, etc.). |
|%A||Full weekday name (Monday, Tuesday, etc.). |
|%b||Abbreviated month name (Jan, Feb, etc.). |
|%B||Full month name. |
|%c||Locale specific date and time (e.g., Nov 24 16:00:59 1996).|
|%d||Day of month (01?31). |
|%H||Hour in 24-hour format (00?23). |
|%I||Hour in 12-hour format (01?12). |
|%j||Day of year (001?366). |
|%m||Month number (01?12). |
|%M||Minute (00?59). |
|%p||AM/PM indicator. |
|%S||Seconds (00?59). |
|%U||Week of year (00?52) when Sunday starts the week.|
|%w||Weekday number (Sunday = 0). |
|%W||Week of year (01?52) when Monday starts the week. |
|%x||Locale specific date format (e.g., Feb 19 1997).|
|%X||Locale specific time format (e.g., 20:10:13).|
|%y||Year without century (00?99).|
|%Y||Year with century (e.g. 1997).|
|%Z||Time zone name.|
Table 13-3. UNIX-specific clock formatting keywords.
|%D||Date as %m/%d/%y (e.g., 02/19/97).|
|%e||Day of month (1?31), no leading zeros. |
|%h||Abbreviated month name. |
|%n||Inserts a newline. |
|%r||Time as %I:%M:%S %p (e.g., 02:39:29 PM).|
|%R||Time as %H:%M (e.g., 14:39).|
|%t||Inserts a tab. |
|%T||Time as %H:%M:%S (e.g., 14:34:29).|
The clock clicks command returns the value of the system's highest resolution clock. The units of the clicks are not defined. The main use of this command is to measure the relative time of different performance tuning trials. The following command counts the clicks per second over 10 seconds, which will vary from system to system:
Example 13-1 Calculating clicks per second.
set t1 [clock clicks]
after 10000 ;# See page 218
set t2 [clock clicks]
puts "[expr ($t2 - $t1)/10] Clicks/second"
=> _PHONE_ Clicks/second
The clock scan command parses a date string and returns a seconds value. The command handles a variety of date formats. If you leave off the year, the current year is assumed.
Year 2000 Compliance
Tcl implements the standard interpretation of two-digit year values, which is that 70?9 are 1970?999, 00?9 are 2000?069. Versions of Tcl before 8.0 did not properly deal with two-digit years in all cases. Note, however, that Tcl is limited by your system's time epoch and the number of bits in an integer. On Windows, Macintosh, and most UNIX systems, the clock epoch is January 1, 1970. A 32-bit integer can count enough seconds to reach forward into the year 2037, and backward to the year 1903. If you try to clock scan a date outside that range, Tcl will raise an error because the seconds counter will overflow or underflow. In this case, Tcl is just reflecting limitations of the underlying system.
If you leave out a date, clock scan assumes the current date. You can also use the -base option to specify a date. The following example uses the current time as the base, which is redundant:
clock scan "10:30:44 PM" -base [clock seconds]
The date parser allows these modifiers: year, month, fortnight (two weeks), week, day, hour, minute, second. You can put a positive or negative number in front of a modifier as a multiplier. For example:
clock format [clock scan "10:30:44 PM 1 week"]
=> Sun Dec 01 22:30:44 1996
clock format [clock scan "10:30:44 PM -1 week"]
Sun Nov 17 22:30:44 1996
You can also use tomorrow, yesterday, today, now, last, this, next, and ago, as modifiers.
clock format [clock scan "3 years ago"]
=> Wed Nov 24 17:06:46 1993
Both clock format and clock scan take a -gmt option that uses Greenwich Mean Time. Otherwise, the local time zone is used.
clock format [clock seconds] -gmt true
=> Sun Nov 24 09:25:29 1996
clock format [clock seconds] -gmt false
=> Sun Nov 24 17:25:34 1996


text:
Optimal Design of Roller One Way Clutch for Starter Drives 2004-01-1151
The starter drive clutch is a one way roller clutch and a key component in a starter motor that is used to crank internal combustion engines. The starter drive clutch transmits torque from an electrical motor to a ring gear mounted on a cranking shaft in an engine thus cranks the engine. The clutch also prevents the whole starter from damage caused by extremely high load and/or extremely high speed applied to the starter pinion from the engine.
Drive slippage and barrel cracking are two major failure modes for the starter drive. Insufficient torque capacity results in drive slippage while excessive high hoop stress on the clutch barrel ring causes barrel crack. To eliminate drive slippage failure, the clutch should be designed with high torque capacity. High torque capacity, however, is a cause of high hoop stress on the barrel that may result in the cracked barrel failure. Higher torque capacity and lower hoop stress are two completely opposite design directions. So, an optimal design approach should be applied to the clutch design. The optimal design of the clutch is maximizing torque capacity of the clutch and minimizing hoop stress on the barrel. Thus, optimization of the clutch is to design a clutch to achieve maximum torque and minimum hoop stress. To achieve this goal, an optimization model is derived based on the mechanism of the clutch. A sensitivity analysis is used to select the most effective parameters for the optimization in this multiple variables optimization. A constant strut angle is introduced to reduce changing strut angle during the clutch works. Finally, a case study shows this optimal design approach improved clutch design.


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use of multimedia in classroom teaching
Application of Wireless sharing in Classroom Teaching
The core of the multimedia classroom is not a tablet computer, which involves cost issues. Most schools still cannot afford this kind of intelligent and efficient classroom. The combination of sub-screens and projectors are more common in traditional multimedia classrooms because there is only one screen.
There are many wireless sharing device on the market, including hardware and software equipment, wired and wireless. How to choose a suitable wireless sharing device, and what mirror method to choose for multimedia classrooms, here is a high-quality choice for you. AWIND wireless presentation system, a wireless sharing device manufacturer that only does business conference room and multimedia classroom.
As a professional wireless sharing manufacturer in the field of business education, AWIND said that the clarity and fluency of the screen sharing is a bit of a loss. In real business meeting rooms and multimedia classrooms, when the presentation is stuck, or the picture is not clear, it is basically cool. What's more, AWIND offers a 15-day free trial, so who knows how to use it in terms of performance, there is nothing to say, if it doesn't work well, it will be returned long ago, right?
二、The wireless sharingfunction meets the current use of multimedia classrooms
The wireless presentation system is more suitable for the current multimedia classroom mainly in terms of functions, such as the more popular functions in the multimedia classroom:
- The screen is reversed and sent back： Whether it is an Android phone/tablet or a computer, the screen is projected on the touch all-in-one computer, and the teacher can directly demonstrate the operation on the big screen. This is for the traditional teachers who can only "bury their heads" in front of the computer. Teaching methods include: a big change.
- Multi-screen interaction： multi-screen interaction between computers, large screens, and mobile phones/tablets allows teachers to get rid of the constraints of the podium and better integrate into students.
- Multi-screen simultaneous display： there are more than one display screen in many classrooms, which can be easily realized through the multi-screen simultaneous display function. Make students see more clearly with more screens.
- Share while shooting: During the shooting process of mobile phones, DV, etc., real-time screen transfer to the big screen makes the experimental classroom instantly different
- Screencasting and saving: Maybe in the conference room, the screencasting saving function is not used much, but in the classroom, it is very practical to save and share the screencasting process to twitter,facebook and other platforms. On the one hand, students do not need to copy notebooks when the teacher is teaching, so that they can better keep up with the teacher's ideas and realize the interaction between teachers and students; on the other hand, after class, students can review and understand more clearly.


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How Long Are Opioids in Your System?
The length of time opioids remain in someone's system depends on many different variables. How long an opioid can be detected through a drug screen also depends heavily on the test itself as well as the test subject's health and pattern of opioid use.1
This page will discuss:
- How drug screens test for opioids.
- How detectable certain opioids are.
- Give a general detectability window for opioids based on the types of drug screens.
- Explain the various factors that influence how long drugs remain in someone's system.
Will Opioids Show up on Drug Tests?
In general, a urine drug screen that tests for the presence of multiple drugs will only detect metabolites of natural opioids, that is, codeine and morphine. This includes the ability to detect certain semi-synthetic opioids, like heroin, because it metabolizes to morphine.2
There are, however, panels available that more specifically detect semi-synthetic (e.g., oxycodone) as well as synthetic opioids (e.g., methadone, fentanyl).2
How Long Will Opioids Show up on Drug Tests?
It's impossible to give an exact answer as to how long a drug will be detectable in an individual's system because there are many variables that effect detectability.1 However, there is a generalized detection window for opioids for each testing method.
Typically:3, 4, 5
- Opioids are detectable in urine drug screens for about 3 days.
- Tests that analyze hair follicles can detect drugs used repeatedly for up to 90 days after use.
- Drugs are detectable in a saliva test for 24-36 hours after the last dose.
- Blood tests have a very narrow window of detection of up to 12 hours. However, this window may be much wider for patients that use opioids chronically.
Which Opioids Do Drug Tests Check For?
Drug tests may screen for different opioids, depending on the laboratory and the panel used. Common opioids that are detected in drug tests include:6, 7, 8
Some common drug screens are unable to detect synthetic and semi-synthetic opioids like oxycodone, buprenorphine, or fentanyl. However, more stringent tests—such as the ones used by law enforcement, doctors, or certain employers—can detect these substances.9, 10
Opioids used medicinally and in recommended dosages may be detected by a drug test. If this happens, an additional test will likely be required, and the patient may have to provide their prescription. The concentration of opioids in their system will also be considered.10
What Factors Impact How Long Opioids Stay in Your System?
Every individual will metabolize opioids at a different rate, which determines how long drugs will be detectable with a drug screen. The duration of time it takes for someone to metabolize opioids is dependent on a number of variables, including but not limited to the:1, 11
- Person's age, sex, and genes.
- Patient's liver health.
- The amount of body fat.
- Pattern of (frequency and dosage) of opioid use.
- Half-life of the opioid taken.
- Route that the opioid was administered.
Characteristics of a drug test that may affect detectability include the:
- Type of test administered (i.e., saliva, urine, hair, blood).
- Cut-off concentration of the test (i.e., predetermined threshold of the concentration that will flag as positive).
- Sensitivity and specificity of the test.
- The concentration of the saliva, urine, hair, or blood that was tested.
How Can You Get Opioids out of Your System Faster?
The internet is full of ill-advised and misguided methods promising to rid the body of opioids or other drugs at a faster rate, or on how to "fool" a drug test. Most of this advice is unhelpful and some of it can even be dangerous.
The fact of the matter is that even if someone was to dilute a sample, switch a sample with a synthetic replacement, or tamper with the sample, drug screens have methods to detect this.12
How to Make Detoxing from Opioids Easier
When someone has been using opioids for a prolonged period of time, there is a high likelihood they will experience withdrawal symptoms when they quit or drastically reduce their use. This can happen even when someone has been taking opioids according to a doctor's recommendations.13
Withdrawal from opioids is not usually life-threatening, though it can be painful and unpleasant. Common symptoms include:14
- Abdominal pains.
Sometimes these symptoms can be so severe that they cause someone to relapse and return to opioid use.14
For those who have attempted to reduce their opioid use and have been unsuccessful because of severe withdrawal symptoms, medical detoxification can make the process safer and more comfortable. In a medical detox facility, staff can monitor the patient, respond immediately to emergencies, and administer medication to mitigate uncomfortable withdrawal symptoms as necessary.14
While medical detox is an important step towards treatment of an opioid use disorder, it's rarely sufficient by itself in helping a person achieve long-term sobriety. That is why continued treatment in a rehabilitation program after detox is crucial.15
Opioids and other drugs of abuse affect behavior and the way the brain functions; they can even alter the brain's structure. Once a patient is sober after detox and no longer contending with acute withdrawal symptoms, symptoms as a result of drug use will likely persist. It is with further treatment and various therapy methods can shift someone's thought and behavioral patterns, enabling them to recognize and overcome the triggers and ways of thinking that led them to use.15
Long-term maintenance treatment or other medication-assisted treatment methods may also be necessary for some patients.15
If you or a loved one is struggling with opioid addiction, it's not too late to get help. Please reach out to one of our Admissions Navigators at for more information on opioid rehab near you.
American Addiction Centers (AAC) is committed to delivering original, truthful, accurate, unbiased, and medically current information. We strive to create content that is clear, concise, and easy to understand.
While we are unable to respond to your feedback directly, we'll use this information to improve our online help.


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Our product code: UN-SL-PM-DONKEY
This colourful Donkey Playground Markings design creates a world of imagination for children while helping them to gain a wider understanding of the world and to recognise the different animals around them.
Children will naturally introduce the donkey into their imaginative worlds and child-led games.
- Size: 1M
- Solid colour design
Please contact us for further information.


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Canthaxanthin is a keto-carotenoid pigment that is found in many natural plants and organism. It can be found in green algae, crustaceans, and in fish such as carp, golden mullet, seabream. Beyond common belief, wild salmon have little amounts of Canthaxanthin inside, drawing their color mainly from other carotenoids or pigments.
Canthaxanthin is mainly used in the animal feed industry as a additive for poulty and fish feed. Adding Canthaxanthin into the feed mixture contributes not only to coloring attributes, but also can have certain beneficial oxidative properties to eggs and newborn chicks.
CAS Number : 514-78-3


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Mount Isa in the years of WWI was an isolated blip of far-flung pastoral leases, with the occasional prospector finding slim pickings. Yet this district saw its youth leave to sign up for King and Country on the other side of the world, some of whom were stockmen and horse breakers, skills much sought after by the Australian Light Horse.
A war memorial obelisk in George McCoy Park was refurbished in 2005.
It includes the names of locals who served in WWI, WWII and Vietnam.
Mount Isa didn't really 'make the map' until lone gold prospector John Campbell Miles stumbled upon one of the world's richest deposits of copper, silver and zinc during his expedition into the Northern Territory in 1923. Mount Isa Mines was established a year later and the city grew around it.


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According to BC Stats:
Small Business is defined as those businesses with fewer than 50 employees plus businesses operated by self-employed individuals without paid help
98% of all businesses in BC are considered small
82% of all small businesses have less than 5 employees
The entire province of BC has 6,700 employers with more than 50 employees
When speaking of property taxes, many politicians look to the idea of differentiating between large and small businesses because they perceive there to be more public support for higher taxes for large business. Although we understand and appreciate the well intended objectives of this proposal, we see a number of difficulties with the concept of creating two business classes from the current one.
It should be understood that property tax is a tax on land and improvement value and is the responsibility of the landowner to pay. When the landowner leases the use of his or her property it is for a net rent and because the tenant is using the property as if they had ownership for the term of the lease they are responsible for all costs associated with the property. That includes property tax and is regardless of the type of tenant renting.
Although the tenant usually pays the property taxes the liability for the tax lies with the land owner. So having a different property tax for small and large businesses will mean that the land owner's property taxes will change dramatically according to the type of tenant she has. Therefore there will be an incentive for the land owner to favour the small business tenant with the lower property taxes. When there is a vacancy some authority will have to determine if a small or large business tax rate is to apply to the property and thus the land owner.
The definition of a small business
A major problem with introducing a small business class is how to define a small business and a 'large business.' Is it measured in terms of total space occupied, gross sales, net assets, profits, number of employees or other factors? A large property may contain one large business or many small businesses. A small property may be one of many small properties owned by one landowners or a pension fund.
If, for example, there are two coffee shops in your neighbourhood and one belongs to a multi-national chain and one is an independent owner. Would it be fair for one to have substantially higher taxes than the other? They may both enjoy the similar sales, the same number of employees and perhaps the same rent. Is the public's interest being served when your neighbourhood encourages small businesses to prosper but ignores the convenience and service of large businesses who may be discouraged to locate locally? Banks, large format grocery stores or restaurant chains for example, might be desired in a neighbourhood for their convenience but may be discouraged by high property taxes.
Big buildings do not necessarily mean big businesses. May multi-story buildings in downtown Vancouver are home to many small businesses.
Consider two otherwise identical high-rise office buildings. One building may be occupied by a single company while the other is occupied by numerous small businesses, each renting a share of a large property. Should one property enjoy lower taxes simply because there are many small tenants rather than one large tenant in the building? If a small business class were to be created, would a retailer that had five small stores still be considered a "small business"?
Equity among small businesses and other businesses
Using square footage or assessed value as a criterion for defining a "small business" would by itself create significant unintended consequences and inequities.
The high occupancy levels we see throughout the City of Vancouver suggests that when small businesses leave or cease to be in business, the space they vacate is subsequently occupied either by other small businesses or by large businesses. Assisting all small businesses does not address the specific impacts on individual businesses.
Businesses provide employment regardless of their size or profitability. They also provide services and goods that are essential to a thriving community. Businesses must also pay for services that are provided by the municipality whether it is police or fire protection or sewers and roads. To require that businesses be responsible for more than a fair share of property taxes can be disastrous to the economic health of a community.


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Skip to Main Content
This article proposes a controller design method for the continuous stirred-tank reactor (CSTR) in the biodiesel process. First, the dynamics model of the reactor in the biodiesel continuous process is presented. Then, a controller design method, using both input-output linearization method and PD method, is presented to control the concentration of the biodiesel. The appropriate value of gain PD is set in order to control heat energy put into the CSTR. The result shows this control method yields better transient response in terms of settling time and percent overshoot.


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I need to go on the record, officially, and state that the peace symbol is a ridiculous fashion accessory. Nevermind that the actual construction of the peace symbol is done using flag semaphore, a method of naval communication:
The symbol is a combination of the semaphore signals for the letters "N" and "D," standing for "nuclear disarmament". In semaphore the letter "N" is formed by a person holding two flags in an upside-down "V," and the letter "D" is formed by holding one flag pointed straight up and the other pointed straight down. Superimposing these two signs forms the shape of the centre of the peace symbol.
I'm sorry, maybe I am being judgemental. But did not anyone consider that using military symbols for a "peace" movement is more than the slightest bit ironic? Or is this an issue of co-option? And by using the symbols of the enemy, they are transformed?
Someone, please, tell the Hof that his shirt looks silly. Yes, it is now time to Hassle the Hof.


Lock Flag
From TouchDesigner Documentation
(Redirected from Lock)
Jump to: navigation, search
If a node is locked, it will not cook and its data will not update when inputs or parameters change. The node's data is saved in the locked operator.
Unlocked.jpg Locked.jpg
Locking TOPs[edit]
A locked TOP saves the image inside the .toe file as uncompressed image data. The .toe file size will increase by the same amount as the locked image data size. A .toe file saved with locked TOP(s) can be opened by anyone and the image will remain in the TOP(s). For example, a locked Movie In TOP will keep the TOP image stored in the .toe file so it can be opened on any computer, even if the file the TOP references does not exist. If the Movie In TOP is then unlocked, the TOP will try to load the file referenced by its File parameter.
Locking SOPs[edit]
Locking a SOP prevents it from cooking so that manual modeling changes are retained instead of updating parametrically.
An Operator Family that creates, composites and modifies images, and reads/writes images and movies to/from files and the network. TOPs run on the graphics card's GPU.
TOuch Environment file, the file type used by TouchDesigner to save your project.
An Operator Family that reads, creates and modifies 3D polygons, curves, NURBS surfaces, spheres, meatballs and other 3D surface data.


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NFPA 99 - standard Isolated Power System testing
Isolated Power System is a company dedicated to providing annual inspection and recertification services for hospital isolated power systems, including line isolation monitors. The company ensures that healthcare facilities have the documentation required to maintain compliance with NFPA 99 and the Environment of Care standards for Joint Commission accreditation.
Hospital isolated power systems are designed to provide electrical safety to patients and healthcare personnel in a healthcare setting. These systems utilize an isolated power supply to reduce the risk of electrical shock to patients and healthcare personnel. Line isolation monitors are used to detect faults in the isolated power system and ensure that hazardous current does not reach the patient or healthcare personnel. The use of isolated power systems and line isolation monitors is essential in ensuring that patients and healthcare personnel are safe during medical procedures.
The National Fire Protection Association (NFPA) is a nonprofit organization dedicated to promoting fire safety in the United States. NFPA 99 is the code for Health Care Facilities, and it outlines the requirements for electrical safety in healthcare facilities. Compliance with NFPA 99 is essential in ensuring that healthcare facilities meet the highest standards of electrical safety.
Isolated Power System performs thorough inspections of isolated power systems and line isolation monitors, including testing for the accuracy of hazard current measurements and ensuring that ground fault alarms trip at 5 milliamps, or within specifications. The company's inspection process is designed to ensure that healthcare facilities meet the standards outlined in NFPA 99 and the Environment of Care standards for Joint Commission accreditation.
Isolated power systems were initially used as an electrical safety measure during the years of flammable anesthetic agents. However, their use in the healthcare environment is making a big comeback due to the increased demand for electrical safety. Isolated Power System is well-equipped to provide healthcare facilities with the necessary services to ensure the safety of patients and healthcare personnel.
Isolated Power System is able to replace inoperative line isolation monitors and provide retrofitting when necessary. The company's team of highly trained biomedical equipment maintenance technicians and field service engineers can provide biomedical equipment maintenance services for all medical equipment devices used in a healthcare setting. This ensures that all medical equipment devices are functioning correctly, minimizing downtime, and reducing repair costs.
Isolated Power System is a company dedicated to providing high-quality annual inspection and recertification services for hospital isolated power systems, including line isolation monitors. The company ensures that healthcare facilities meet the highest standards of electrical safety, including compliance with NFPA 99 and the Environment of Care standards for Joint Commission accreditation. Isolated Power System's thorough inspection process ensures that all isolated power systems and line isolation monitors are functioning correctly, and the company's ability to replace inoperative line isolation monitors and provide biomedical equipment maintenance services makes it a valuable partner to healthcare facilities.
Call us at _PHONE_ for more information
"Every year, we trust Isolated Power System to perform the annual inspection and re-certification of our isolated power systems, including line isolation monitors. Their level of expertise and professionalism are unmatched."
- Michael Webb, Hospital Electrician
"Isolated Power System is always there when we have a question about isolated power systems and/or line isolation monitors. They provided us with new line isolation monitor installation services several years ago, and these systems are still serving us well."
- Debra Harrison M.D.
"I like the way Isolated Power system is always ready to come in and perform services after hours and/or on the weekends. Their technicians are the most knowledgeable in the area of hospital isolated power systems and line isolation monitors."
- James Perry R.N.


Key referencing
Updated 19 days ago by Nick Ustinov
Using Lokalise placeholder
There are many cases when you have similar content in multiple strings, for example "Cancel" is one of the common examples. Usually projects have many keys for the Cancel button (as the translation may vary depending on the context for different languages).
You can easily solve this by linking or referencing one key from another. Use Lokalise placeholder to do this:
[%key:source_key_name%]
Inserting this placeholder would actually fetch source_key_name value for specific language (in the editor and when exporting). Even more, you can use placeholder inside the text, or use multiple placeholders in the same field:
Would you like to [%key:button_cancel%] or [%key:button_proceed%]?
Example above would produce the following result:
If you hover the mouse over dialog_title English value, you can click green key name itself to navigate to the source key or click any other area to edit it.
Linking duplicates using referencing
First, switch to language duplicate find view. To do so, click small language triangle on the dashboard and choose "Show duplicates".
In the duplicates view, there is an option to link the keys one by one (make sure to select the "main" one first) or link 'em all using the button on top.
Have a nice linking!
How did we do


4-Square Drill
Imagine a small square on the ground and you are standing in the middle of it. As fast as you can jump out of the box and back to starting working your way all around the box. Then repeat with your left and right feet.
So it looks like this:
BackForeword
Then repeat in the opposite direction
Repeat the pattern again with your left and right feet seperately.
Jumping the pattern with both feet and each foot individualy = 1 rep
4-Square Drill to Box
Same pattern, but jump up to and off of a plyo box or ledge.


spellingframe - practise and test spellings from KS1 and KS2 spelling curriculum
Rounding - Crystal Crash
Related Worksheets
Throw your pickaxe at the correct crystal. This game has the following levels (taken from the new maths curricululum):
1. Round numbers up to 100 to the nearest 10 (Y2)
2. Round numbers up to 1000 to the nearest 10 (Y3)
3. Round numbers up to 10,000 to the nearest 10, 100 or 1000 (Y4)
4. Round decimals with one decimal place to the nearest whole number (Y4)
5. Round decimals with two decimal places to the nearest whole number and to one decimal place (Y5)
6.Round decimals with up to three decimal places to the nearest whole, one decimal place or two decimal places (Y6)
This game, together with all the other crystal crash games, is available as a single iPad or Android app.


How to Export Your Mozilla Firefox History as a Dataframe in R
The goal of this post is to export a Mozilla Firefox Browser history and import in R as a dataframe.
Browser history data
Firefox saves your browsing history in a file called places.sqlite. This file contains several tables, like bookmarks, favicons or the history.
To get a dataframe with visited websites, you need two tables from the sqlite file:
 1. moz_historyvisits: it contains all websites you visited with time and date. All websites have an id instead of a readable URL.
 2. moz_places: it contains the translation of the websites id and its actual URL.
More on the database schema:
Import the data into R
sqlite files can be imported with the package RSQLite.
First, find the places.sqlite on your computer. You can get the path, by visiting about:support in Firefox and looking for the Profiles directory.
# connect to database
 dbname = "path/to/places.sqlite",
# get all tables
tables <- dbListTables(con)
# remove internal tables
tables <- tables[tables!= "sqlite_sequence"]
# create a list of dataframes
list_of_df <- purrr::map(tables, ~{
 dbGetQuery(conn = con, statement=paste0("SELECT * FROM '",.x, "'"))
# get the list of dataframes some names
names(list_of_df) <- tables
Extract browser history
Next, we extract the two tables with the information we need, join them and keep only the visited url, the time and the URL id.
There are two caveats:
 1. The timestamps are saved in the PRTime format, which is basically an unix timestamp and you have to convert it in a human-readable format
 2. Extract the domain of a URL using the urltools package, e.g. getting instead of
# get the two dataframes
history <- list_of_df[["moz_historyvisits"]]
urls <- list_of_df[["moz_places"]]
df <- left_join(history, urls, by = c("place_id" = "id")) %>%
 select(place_id, url, visit_date) %>%
 # convert the unix timestamp
 mutate(date = as.POSIXct(as.numeric(visit_date)/_PHONE_, origin = '1970-01-01', tz = 'GMT'),
 # extract the domains from the URL, e.g. '' instead of ''
 domain = str_remove(urltools::domain(url), "www\\."))
2 Kommentare
Hans 2. März 2021 Antworten
Thank you for this interesting post.
Minor comment: For the very last command to execute, I had to load two more packages.
Package dplyr is needed for the command mutate.
Package stringr is needed for the command str_remove.
Katharina 21. März 2021 Antworten
Indeed! 'tidyverse' is my base R 😀
Schreibe einen Kommentar zu Katharina Antworten abbrechen


Lukasz Witkowski
Learn More
An n-lift of a graph K, is a graph with vertex set V (K) × [n] and for each edge (i, j) ∈ E(K) there is a perfect matching between {i} × [n] and {j} × [n]. If these matchings are chosen independently and uniformly at random then we say that we have a random n-lift. We show that there are constants h1, h2 such that if h ≥ h1 then a random n-lift of the(More)
UNLABELLED The comparative study of the results of various segmentation methods for the digital images of the follicular lymphoma cancer tissue section is described in this paper. The sensitivity and specificity and some other parameters of the following adaptive threshold methods of segmentation: the Niblack method, the Sauvola method, the White method,(More)
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Updated: January 10, 2014 1:28PM
The village of Grayslake today has lifted a precautionary water boil that went into effect Wednesday.
For nearly two days, residents had to boil their water after the water system lost pressure, likely due to the stress of the extreme weather on equipment.
The village water system lost pressure around 12:30 p.m. Wednesday due to a telemetry system malfunction, possibly caused by the extreme cold that began Monday. Village crews responded by overriding the automatic operating system and manually flipping the switch to start pumping water back into the system. Normal water pressure was restored in less than 30 minutes.
Bill Heinz, director of public works and village engineer, said the telemetry system is a computer system that controls pumps on water systems, both fresh water and sewage, and reacts to what sensors tell it. Sensors in the water system apparently froze and the water level got down to a point where the water pressure was compromised. If the pressure goes too low, contaminates can find their way into the system.
Due to the loss in pressure, the village is required by the Illinois Environmental Protection Agency, to issue a water boil order for residents.