Building a Two-Factor Authentication Form in React Using SMS Verification
Aron Schüler Published
Intro
In today's web projects, securing user accounts is more important than ever. Simple passwords are using their value through dataleaks, and most users still reuse passwords. Two-Factor Authentication (2FA) adds an extra layer of security by requiring users to verify their identity through a second form of authentication, typically a code sent via SMS. This guide will walk you through building a 2FA form in React using react-hook-form. Let's get started!
Step-by-Step Guide
Step 1: Setting Up Your React Project (Vite)
 - First, we will set up a new React project to implement the form. We will use Vite. You can do this with the npx create-vite command and the react-ts template:
 npx create-vite 2fa-sms-react --template react-ts
 cd 2fa-sms-react
 - Once your project is set up, open it in your code editor.
Step 2: Installing Required Dependencies
Managing form state and validation with React's useState and useEffect hooks can be cumbersome. Instead, we'll use react-hook-form to simplify form handling and validation.
 - Install react-hook-form to manage your form state:
 npm install react-hook-form
Step 3: Creating the 2FA Form Component
Next, we will setup a component that holds our two 2FA forms. We need one form to input the phone number that will receive the SMS code and another form to input the verification code. We will handle the form submission logic in this component with react-hook-form and utilize one of my favorite features: the autoComplete="one-time-code" attribute.
 - Create a new component named TwoFactorAuthForm.js in the src directory.
 - In this component, we'll create a form with an input for the phone number and another form + input for the verification code using react-hook-form.
 - The autoComplete="one-time-code" attribute on the verification code input tells the browser to autofill the code if it detects a one-time code SMS. Very handy if you're using a mobile device, I appreciate this feature a lot.
 import React from "react";
 import { useForm } from "react-hook-form";

 const TwoFactorAuthForm = () => {
 const { register, handleSubmit, reset } = useForm();

 const onSendCode = (data) => {
 // Logic to send the SMS verification code
 console.log('Sending verification code to ${data.phoneNumber}');
 // reset the form after sending the code
 reset({ phoneNumber: data.phoneNumber });
 };

 const onVerifyCode = (data) => {
 // Logic to verify the SMS verification code
 console.log('Verifying code: ${data.verificationCode}');
 };

 return (

Two-Factor Authentication

 <form onSubmit={handleSubmit(onSendCode)}>

 Phone Number:
 <input
 type="tel"
 {...register("phoneNumber", { required: true })}
 required
 />
 <button type="submit">Send Code</button>

 </form>
 <form onSubmit={handleSubmit(onVerifyCode)}>

 Verification Code:
 <input
 type="text"
 {...register("verificationCode", { required: true })}
 autoComplete="one-time-code"
 required
 />
 <button type="submit">Verify Code</button>

 </form>

 );
 };

 export default TwoFactorAuthForm;
Step 4: Integrating SMS API for Sending Codes
To send SMS codes, you need a service like Twilio and an API endpoint on your backend to handle the SMS sending logic. For this guide, we will focus on the frontend, but the backend integration should look like this:
 - Create an API endpoint on your backend to send the SMS verification code.
 - Store the verification code on the backend (e.g., in a database or in-memory store) and check the code entered by the user against the stored code.
 - Update onVerifyCode to send the verification code to the backend for verification.
Conclusion
Building a 2FA form in React using SMS verification significantly enhances your application's security. Utilizing react-hook-form simplifies form handling and state management, and the autoComplete="one-time-code" attribute streamlines the user experience by allowing the browser to auto-fill the verification code. By following this guide, you've created a more secure and user-friendly authentication process. Feel free to ask questions or share your experiences in the comments below. Happy coding!
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text:
Reaper 6.47 Crack Plus License Key [Mac/Win]
Reaper Crack is a fully-featured audio production tool for Mac and Windows. This multi-track audio recording and editing application offer MIDI recording, editing, processing, and mixing capabilities. Additionally, it contains a Mastering toolset and multi-track audio recording features.
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source: m-a-p/FineFineWeb


text:
What are the minimum requirements of SecuRe Pay that are most relevant for MIDAS Alliance
The full 42 page guidance is available at:
The changes to its definition of Strong Authentication are of the greatest relevance to the MIDAS Alliance:
Definition of Strong Authentication – SecuRe Pay mandates multi-factor authentication, but in addition it also brings in some interesting caveats as to how these factors are handled, so that one or both of these factors;
- Must be mutually independent, i.e. the breach of one does not compromise the other(s);
- Should be non-reusable and non-replicable (except for inherence);
- Designed in such a way as to protect the confidentiality of the authentication data;
- Not capable of being surreptitiously stolen via the internet.
SecuRe Pay in addition lays out the following requirements for every issuing bank to conform to based on the use of two or more of the following elements:
- Something only the user knows, e.g. static password, code, personal identification number;
- Something only the user possesses, e.g. token, smart card, mobile phone;
- Something the user is, e.g. biometric characteristic, such as a fingerprint or face recogniton.
In addition for SecuRe Pay, the elements selected must be mutually independent, i.e. the breach of one does not compromise the other.
"At least one of the elements should be non-reusable and non-replicable and not capable of being surreptitiously stolen via the internet. The strong authentication procedure should be designed in such a way as to protect the confidentiality of the authentication data."
The purpose of the SecuRe Pay guidelines is to define common minimum requirements for the internet payment services listed below, irrespective of the access device used:
- The execution of card payments on the internet, including virtual card payments, as well as the registration of card payment data for use in 'wallet solutions'
- The execution of credit transfers (CTs) on the internet
- The issuance and amendment of direct debit electronic mandates
- Transfers of electronic money between two e-money accounts via the internet.

source: openbmb/Ultra-FineWeb


text: Explore the ancient land of Nippon. Build a railroad empire in the land of the rising sun. Use your initial investment to build track. Then pick up commodities where they are grown, mined, or manufactured and deliver them to a lucrative place of demand. Complete a delivery and make the money you need to buy larger, faster trains, and expand your railroad empire. Win the game by building the most effective railroad empire. With the countless variations of play provided, Nippon Rails provides a challenging region for the creation of your network. Obstacles are rival tracks and Japan's great mountains, channels, and rivers and restrictive coastline. Capture the can-do spirit of Japan and build an empire. Whether you share Nippon Rails as an evening with friends or as a rainy day activity with your family, you'll always find it captivating. After enjoying this great game, you can explore one of the many other award-winning Empire Builder games, including titles as diverse as China Rails, Australian Rails, and Martian Rails. Nippon Rails is geographically accurate. The game depicts Japan's rivers, plains, and mountains, as well as its natural resources. It's a great way to learn about the geography, business, shipping, and transportation of Japan while having loads of fun with friends or family.


TORONTO -- With warm weather approaching and the promise of a "one-dose summer" on the horizon, many Canadians are making plans for the summer and fall, eager for life to get back to pre-pandemic "normal." But not all Canadians are happy to see the end of lockdown life brought about by COVID-19 restrictions.
The term 'cave syndrome' has been bandied about in news headlines and on social media, a term being used to describe people who may not be so willing to resume normal life when the COVID-19 pandemic sees its end. But while it may accurately describe people's genuine struggle to return to normal lives as restrictions ease, psychologists say it's a term that oversimplifies and pathologizes things.
"It's not a syndrome because there could be any number of reasons why people are choosing to stay at home," Steven Taylor, clinical psychologist at the University of British Columbia, told in a phone interview.
This term is gaining popularity before the pandemic has even ended, and it's still too soon to tell how much we'll continue to be affected once the crisis is over.
"At this point it is really hard to assess or understand how severe these issues are because the whole thing is still ongoing," he said. "So someone could be fairly anxious right now about leaving the home, but once the pandemic is over, that person might be fine."
And at this stage in the pandemic, there is no clear ending. What might be the end for one person, won't be the end for another.
"The end of the pandemic is going to be different for everybody. In all likelihood the pandemic is going to evolve into an endemic," Gordon Asmundson, clinical psychologist and professor of psychology at the University of Regina, told in a phone interview.
He said that the term 'cave syndrome' is too broad and encompasses any reason someone might have for not leaving their home, including finding it more convenient to work from home, or cheaper to do online post-secondary schooling.
"Some of those reasons may be adaptive reasons, so they're not really symptomatic of anything," he added.
With a term that includes so many reasons for not wanting to leave the house, or ease COVID-19 restrictions, it could overlook more serious diagnoses at play.
"A key consideration is whether leaving the cave is an inconvenience or an emotional burden, and almost insurmountable challenge, and in the latter case, there might be other diagnoses that are more specific and helpful," said Asmundson.
It could prevent people from realizing their issues with leaving the house are more severe than general convenience and enjoying alone time. It could mean missing that someone is staying home because of depression or a panic disorder.
"If you call this a syndrome, then the problem is that you might have missed some of the other disorders," said Taylor.
And there's no need to give a diagnosis to something that creates a feeling of inconvenience more than anything else.
"If it's an inconvenience, but doesn't really affect your functional ability, then those things shouldn't be pathologized," said Asmundson.
It also over emphasizes the mental health issues that psychologists expect to see after the pandemic comes to an end. Early on in the pandemic, Taylor and Asmundson worked together on the impacts of what they call COVID Stress Syndrome, a term used to describe the overwhelming and life-disrupting fear of infection and the consequences of a COVID-19 infection.
"It can over pathologize ordinary anxiety and it's ordinary and normal and expected to be anxious during COVID-19," said Taylor.
He doesn't believe the general stress of the pandemic will have staying power for most people.
"Most people will pick up where they left off and bounce back, but not everyone," said Taylor. "This is a big issue at the moment, trying to estimate the proportion of people who will come through this stressful event and will need psychological help and it's really hard to predict."
This isn't to say that the pandemic hasn't had negative effects on mental health for Canadians.
"The pandemic is having a greater impact on people who have these pre-existing conditions. And then in some people it's creating new conditions, like post traumatic stress disorder, particularly in frontline workers," said Asmundson.
And part of the challenge now is that for most of the pandemic, people with anxiety and panic disorders have been able to stay home and avoid the things that might cause them anxiety, which could actually worsen things.
"Avoidance is one of the key fuels to the fire of anxiety and stress," he said. "It's a really effective coping strategy in the short term, you avoid what stresses you out, you feel better, but in the long term the avoidance comes at a cost and you start missing out on opportunities to learn that you often overestimate the amount of threat that's out there."
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"Once the restrictions have lifted and it's gone weeks or months and you're still inside and you're still very frightened, that might be an indication that you might need some help, particularly if the anxiety is interfering with your life," said Taylor.
If you find yourself overwhelmed in the weeks and months after the COVID-19 pandemic comes to an end, or at least when restrictions are lifted, there are free resources available online that Asmundson says are just as good as in-person therapy.
"One of them is called Mind Shift through Anxiety Canada, is freely available and it's an evidence-based online app that people can actually log into and it's like your own personal therapist on the phone, except it's not a person, it's a program," he said.
While 'cave syndrome; might be a catchy name, it doesn't do justice to the reasons people may not want to leave the house, and tries to diagnose people who don't want to return to a pre-pandemic "normal."
"It really overlooks the diversity and reasons why people don't want to go out. It seems to psycho-pathologize all of us who don't want to return to exactly the way things were before."


The beauty and value of impact analysis
Hadas Birin
October 2020
SFDC Config
In the last few months, I have been meeting SFDC admins on a daily basis. Powering through what is now known as "Zoom fatigue", I wanted to get a deeper understanding into these admins' scope of responsibilities, their approaches and methods, their daily tasks and the challenges they're facing.
When we moved to talk about their challenges, a couple of common threads appeared through most conversations. Troubleshooting is a serious issue - admins are struggling to understand how specific custom fields got their values for specific records. Designing a change also proved to be a pain, as admins admit that they cannot properly asses the impact of such change on other items in the configuration setup.
To address those issues, we need to first map a few items such as automation-like flows, process builders, Apex classes and workflows, that automatically change the value of fields. Mapping those will help us identify which of these automations may have triggered for a given record, and that will help us solve the mystery behind a specific incident. It would also help us to understand the actual impact, and to identify other design considerations that need to be taken into account when safely implementing a change.
Adding Salto's Sauce
This is where Salto comes in. Salto's language (NaCl) describes the various objects and elements in a business application, as well as the dependencies and connections (or references) between them. When Salto discovers the current configuration and fetches it, it leverages NaCl to create a complete representation of the current state of your Production or Sandbox environments. This automated discovery can be run at any point in time and, using NaCl, reflect the current state of your desired environment.
Once you fetch the latest state of your environment, all you have to do is find the field you want to explore. Here is how it looks:
Search files and elements in your business onfiguration | Salto
In case you have fields with the same name across multiple objects, for example - Opportunity and Account or Lead and Contact - you can choose the specific field that you want to focus on. Then, all you have to do is right click that field and choose "Go To References".
Explore file definitions and references | Salto
Salto will automatically list all of the elements in your environment that point to your selected custom field.
This list of elements will include flows, validation rules, Apex classes, process builders, workflows and even layouts, profiles, and permission sets - all of the actual dependencies related to this custom field. You can click on each of those elements to get a preview, which is the reference to the custom field along with relevant context. For example, if a layout points to this field you will be able to quickly tell whether the field is editable or not within that layout.
To further explore a given reference, you can simply open the NaCl file for it and take a closer look, or edit it when needed. And it doesn't stop at that. There are many other things that we built in order to make your life easier. For example, the ability to search a specific value in your workspace such as a picklist value or a special label, with a simple text search.
More on those in future posts.
To summarize, Salesforce admins are struggling to quickly troubleshoot how values are being set and to fully evaluate the impact of a desired change. The key to solving these pains is to enable them to quickly and clearly understand the context around changes and the dependencies between elements. Salto enables admins to do just that, through a simple, streamlines process.
The beauty and value of impact analysis
Hadas is Salto's VP of Customer Success. With vast technical expertise, she has great experience in enabling business operations, IT and software development teams to get the most out of their tools and solutions and enhance their effectiveness and productivity.


text:
I am trying to create a 'confirmation code' for every user account created on my website and storing it in the db along with their personal information. As you can see in the example below, I tried to generate a random string factoring in the time variable, however, the string is unneccessarily long.
I would like the string to be shorter than the one produced by
md5 I was wondering if there is a relatively easy way to generate 10 digit (max) alphanumeric string that has an extremely low collision rate?
What I tried:
md5(mt_rand(10000,99999).time(). '_EMAIL_');


text:
Woodland Scenics Scene-A-Rama Complete Diorama Kit (10.75" W x 7-3/8" D x 7.5"H)
This versatile kit includes the materials needed to build various types of structures on a flat, landscaped surface with roads and/or paths.
Step-by-step instructions show students how to make two distinct building types that include various building techniques, such as how to create various roof and siding textures. Patterns can be applied to building an endless number of other structures.
Students learn different types of painting tips and techniques. The instructions walk through how to use several types of scenery materials and apply a variety of techniques to model the landscape.
Project Area: 10 3/4" w x 7 3/8" d x 7 1/2


text:
Rating with Confidence: How Rating Scales Affect Future WOM Behavior
42 Pages Posted: 18 Sep 2013
Date Written: September 17, 2013
Firms collecting product ratings are able to choose the scale design (e.g., 2-pt vs. 5-pt scales) for consumers to provide rating scores. While previous research on survey methodology has studied the impact of scale design on measurement reliability and validity, there has been little work documenting the potential impact of this choice following the rating event. The present research argues that the rating scale may affect a rater's likelihood of engaging in subsequent word-of-mouth (WOM) behavior. Specifically, conducting four experiments, we show that participants' WOM intentions are higher after evaluating their consumption experience on a 5-point rating scale than on a 2-point rating scale. We introduce a new construct – "rating certainty" – which reflects a rater's certainty belief regarding her chosen rating score and which mediates the relationship between rating scale and WOM intentions.
Keywords: word-of-mouth, product ratings, scale design
Suggested Citation: Suggested Citation


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The Reivers Quiz | Eight Week Quiz A
Purchase our The Reivers Lesson Plans
Eight Week Quiz A
Name: _____________________________ Period: ___________________________
Multiple Choice Questions
1. Which city does Boon not mention?
(a) Jackson
(b) San Francisco
(c) Mobile
(d) New Orleans
2. Where does John keep his pistol?
(a) In his work jacket
(b) In his work bag
(c) In his locker
(d) In his desk
3. What does Boon say he needs on the way back from the station?
(a) Gas
(b) Coal
(c) Eggs
(d) Milk
4. In what drawer in his desk does father keep his pistol?
(a) The top drawer
(b) The bottom drawer
(c) The middle drawer
(d) The second drawer
5. What number train does the family have to catch?
(a) 23
(b) 27
(c) 30
(d) 25
Short Answer Questions
1. How much does Boon offer father?
2. How old is Lucius in the story?
3. What was the hotel called where Boon stayed?
4. How old was Boon when he arrived at the hunting camp?
5. What is Boon to Lucius' family
(see the answer key)
This section contains 137 words
(approx. 1 page at 300 words per page)
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text:
Classic foot race. Robots have to run at the sound of the starting gun. Fastest robot wins.
Bipeds must have only two legs for this competition. Feet may be no longer than 1/5 of total robot height. Robot must a reciprocal linear mechanism for locomotion. If this mechanism is driven by a rotary motor, reversal of the direction of the mechanism (as required for up/down or forward/back motion) must require reversal of the motor. In addition, the actuator in contact with the floor must move backwards and forwards with respect to center of gravity of the robot. CamBots are precluded.
Robots race from starting line to finish line. Number of robots per race will be determined by total number of entrants. Fastest time wins.

source: HuggingFaceFW/fineweb-edu


text:
- Study measured seven different drivers during their normal weekly driving, doing over 2,000km between them
- Even in the case of long distance commuters the cars were in zero emissions mode (ZEV) for over 50% of the time and for over 30% of the distance covered
- For city centre commuting over 75% of the time and over 50% of the distance was in ZEV mode
- The three drivers with the longest commutes had the best fuel economy, averaging almost 60 mpg.
A new study carried out by University College Dublin (UCD) academics, which was published today, has revealed that in typical Irish commuting conditions, Toyota's hybrid powertrain system drives in zero emissions mode (ZEV) for significantly more than half (62%) of the time and over 40% of the distance covered.
Those were the key findings of a study carried out by four UCD academics and commissioned by Toyota Ireland through ConsultUCD, the University's managed consultancy service. The study entitled "Energy Behaviour of Toyota Prius Hybrid Vehicles in Sample Irish Commuting Conditions" was authored by Professors Robert Shorten and Giovanni Russo, UCD School of Electrical and Electronic Engineering, Professor Franceso Pilla, UCD School of Architecture, Planning and Environmental Planning and Professor David Timoney, UCD School of Mechanical and Materials Engineering.
Zero emissions mode describes the time the internal combustion engine is not running and the vehicle is therefore emitting no pollutants. The longer the car is in ZEV mode the more significant the air quality benefits for other road users
The study tracked seven drivers who commuted to UCD, Belfield from Drogheda, Wicklow, Aughrim, Smithfield, Blackrock and Dundrum (2), over a full week each during last November, combined with normal additional family driving. Conclusions are based on the analysis of the more than 2,000 kilometres of driving across motorways, rural roads and city driving that resulted.
The routes reflect typical Irish commuting conditions. The researchers measured the time the cars spent in zero emissions mode versus internal combustion mode. No restrictions or driving guidelines were given to the drivers.


text:
What are the dimensions of the minimum cost to enclose 120 square feet?
A rectangular plot of land is to be fenced in using two kinds of fencing. Three sides will use fencing $4 a foot, while the remaining side use fencing $12 a foot.
x = length of the rectangle
y = width of the rectangle
C= total cost of the fence.
The equation for the cost is:
'C = 4(x+x+y) + 12y = 4(2x+y) + 12y = 8x + 4y + 12y'
'C= 8x + 16y'
Then, we need to express the right side as one variable. To do so, we are going to use the given area of the rectangle.
'120 = xy'
'120/x = y'
Substitute this to the cost equation.
'C = 8x + 12y = 8x + 16(120/x) '
'C= 8x + 1920/x'
Then, take the derivative of C.
'C' = 8x -1920/x^2'
'C' = (8x^2 - 1920)/x^2'
Set C' to zero. Solve for x.
'0 = (8x^2 - 1920)/x^2'
'0 = 8x^2-1920'
'0 = x^2 - 240'
'240 = x^2'
'+-sqrt240 = x'
'+-4sqrt15 = x'
Since x represent a dimension, take only the positive value.
'x = 4sqrt 15'
Substitute the value of x to y=120/x .
'y = 120/(4sqrt15) = 30/sqrt15 = (30sqrt15)/15 = 2sqrt15'
Hence the dimensions of the rectangular plot are:
Length = '4sqrt15 = 15.49 ft'
Width = '2sqrt15 = 7.75 ft.'


text:
Cholistan Institute of Desert Studies, the Islamia University of Bahawalpur has installed a weather station in the experimental area to provide research facilities. A weather station is a facility, with instruments and equipment's for measuring atmospheric conditions to provide information for weather forecasts and to study the weather and climate.
According to the spokesman of the university Shahzad Ahmad Khalid, this instrument has been imported from the USA, engineered to handle the harshest environments and deliver data with scientific precision, year after year with a wide range of options and sensors. The measurements taken include temperature, dew, wind speed and direction, Barometric pressure, moon phase, UV and Solar radiation, rainfall and its rate and many other factors. These weather stations help to take the precautionary measures against the destructive rains, winds, severe high or low temperature.


text:
In string theory, a worldsheet is a two-dimensional manifold which describes the embedding of a string in spacetime. The term was coined by Leonard Susskind around 1967 as a direct generalization of the world line concept for a point particle in special and general relativity.
The type of string, the geometry of the spacetime in which it propagates, and the presence of long-range background fields (such as gauge fields) are encoded in a conformal field theory defined on the worldsheet. For example, the bosonic string in 26-dimensional Minkowski space has a worldsheet conformal field theory consisting of 26 free scalar fields. Meanwhile, a superstring worldsheet theory in 10 dimensions consists of 10 free scalar fields and their fermionic superpartners.


text: Two Indian wheat cultivars viz. C-306 and RAJ-3765 were used for gluten extraction and developed gluten based edible film. The wet and dry gluten yield of C-306 cultivar was significantly higher than that of RAJ-3765. Five glycerol concentrations viz. 3, 4, 5, 6 and 7 g were tried for film formation and developed films were then compared. Film thickness was independent on glycerol concentration. Tensile strength decreased and % elongation at break increased with an increase in glycerol concentration. Film prepared from C-306 cultivar required higher force than RAJ-3765 for puncture test. As the concentration of glycerol increased the puncture strength decreased. Water vapor transmission rate increased with increase in concentration of glycerol. Water vapor transmission rate, solubility in water (22.7 to 100%) and HCL (42 to 61%) were lower in C-306 than RAJ-3765 edible film. Results clearly showed that quality of gluten significantly affect the film forming properties. © All Rights Reserved.


text:
Contact Folders and Groups
Keep your contacts organized by using multiple Folders and Groups.
When to use
If you find yourself digging through contacts just to find some for a specific topic, possibly a neighbourhood group, you can create a folder for just that topic and keep those specific contacts in that folder.
Create a new folder
- Click on your Contacts or People view.
- Click the Folder ribbon and click the New Folder button, then type a name for the folder, i.e. Holiday Cards.
- Notice the new folder appears on the Folder Pane.
Note: A right click on Contacts will produce the same options as the Folder ribbon.
- Moving Contacts to a Folder: pay attention to the lasso on the mouse arrow.
- To move: click and drag a contact onto a folder (lasso on mouse.)
- To copy: Hold Ctrl key and click and drag a contact to a folder (lasso and "+" on mouse.)
Create a new folder group
- On the group folder named "My Contacts".
- Right-click and choose "New Folder Group".
- Type a name and press enter.
- The new Group Folder won't have useable folders until you make some and move them into the group (repeat steps for making folders above.)
- Simply click and drag folders onto the new group folder. Then the collapsible arrows will appear.
Login to download
Lesson notes are only available for subscribers.


text:
Partnership Resource Projects
Wee-g: Field testing a miniaturized MEMS gravimeter – Bridgeporth and University of Glasgow
The University of Glasgow has built and tested a laboratory based Micro-Electro-Mechanical System (MEMS) gravimeter – Wee-g.
The MEMS device is small and offers the potential for the best cost to performance ratio of all commercially available gravimeters. The sensitivity shown in the laboratory is comparable to best in class devices but has to be shown to work in the field before it will attract investment.
There has already been industrial interest shown in the Wee-g and the advice is that its control/readout electronics have to be re-packaged in order for field tests can be undertaken.
This project has three objectives:
– to develop an early stage mobile prototype of the MEMS gravimeter which currently exists as a laboratory prototype, TRL level 3,
– to field test the gravimeter and compare its performance against an industry standard gravimeter on either an exploration project or against a known gravitational anomaly
– to identify areas for design improvement to develop a full demonstrator
Bridgeporth have offered to test the MEMS device in the field and to undertake comparative testing against a standard commercial gravimeter. The results of the project will be used to inform the design for a full demonstrator which will also incorporate quantum sensing interferometer techniques to further improve noise performance and device sensitivity. This project is in line with work package three of the QuantIC programme.
Bridgeporth is a specialist geosciences company founded in 2011 by a small team of highly qualified geoscientists with a combined experience of over 100 years. Bridgeporth was set up to provide specialist geoscientific services for a range of national and international operators in oil and gas exploration, mining, hazard mitigation, research and media industries. For more information, visit _URL_


text:
Interstellar Law was a series of enacted rules intended to govern the relationships between sovereign planetary and interplanetary governments. It was generally developed through multilateral accords, conventions and other legal instruments agreed to and generally enforced by major powers, such as the Klingon Empire, the Federation, and the Cardassian Union.
In 2293, Captain Kirk was charged with the assassination of Klingon Chancellor Gorkon, a crime under interstellar law. It was later discovered that the Chancellor was murdered by participants in the Khitomer conspiracy, and Kirk was cleared of all charges. (Star Trek VI: The Undiscovered Country)
Interstellar Law was a major offered at the Oneamisu Campus of the University of Hurkos. Upon completion of this major, the student received a Bachelor of Arts. In the late 2340s, Devinoni Ral switched from this major to Political Science. Information on Ral's education was in his biographical data file. (TNG: "The Price", okudagram)
As a matter of interstellar law, Bajor was not recognized as a separate political entity during the Cardassian Occupation. It was only formally recognized following the end of the Occupation in 2369. (DS9: "Emissary")


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let $K$ be a field, $n \geq 1$. denote $E_{i,j}$ the elementary matrix having $1$ on the diagonale and in the entry $(i,j)$, and $E_i(a)$ the elementary matrix $diag(1,...,a,...,1)$. you know that $GL_n(K)$ is generated by these matrices, but what relations do we need in order to get a presentation for $GL_n(K)$?
here are some relations, which correspond to simple relations about row operations:
 - $E_i(1)=1$
 - $E_i(ab) = E_i(a) E_i(b)$
 - $E_i(a) E_j(b) = E_j(b) E_i(a)$
 - $(E_j(-1) E_{ij})^2=1$
 - $E_j(a+b)^{-1} E_{ij} E_j(a+b) = E_j(a)^{-1} E_{ij} E_j(b) E_i(a)^{-1} E_{ij} E_j(a)$
 - $ (E_{ji} E_{ij} E_{ji} E_j(-1))^2=1$
are these all relations? how can we prove that?
EDIT: Mariano has given a counterexample when $K = \mathbb{F}_2$. well, how can we fix this? add more relations? incorporate the structure of $K$ as a ring? what about concrete examples such as $K=\mathbb{Q}$?
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One way of getting a presentation for a Lie group is exponentiating a presentation from the Lie algebra. For the Lie algebra, the presentation will not be hard to do (just take the Cartan subalgebra, $e_{i,i+1}$, and $e_{i+1,i}$), and you can work out the relations for them. It is not necessary to use the matrices corresponding to all $(i,j)$-s - that might overcomplicate things. – Vinoth Dec 30 '09 at 12:10
It seems to me that this should be a presentation of the simply connected form of the Lie group. But GL_2(R) is not simply connected: the universal cover is basically the metaplectic group. I could imagine much worse things could happen with nonarchimedean fields, but I don't know. – David Speyer Dec 30 '09 at 21:40
Heh. Is $\mathbb F_2$ not concrete? :) – Mariano Suárez-Alvarez Jan 4 '10 at 2:04
can you give a presentation for $GL_n(\mathbb{F}_2)$? – Martin Brandenburg Jan 4 '10 at 9:42
See Steinberg, Lectures on Chevalley groups. For $n=2$ extra relations are needed. This is related to David's comment. – Victor Protsak Jun 6 '10 at 6:03
4 Answers 4
This is a sideways answer.
Let $E_{ij}(a)=I+a E_{ij}$, for $i\neq j$ and $a\in A$.These matrices generate the conmutator subgroup $$E(n, A)=[\mathrm{GL}(n, A),\mathrm{GL}(n, A)]\subseteq\mathrm{GL}(n, A).$$ One can easily check that the obvious relations satisfied by these elements are $$E_{ij}(a)E_{ij}(b)=E_{ij}(a+b),$$ $$[E_{ij}(a),E_{jk}(a)]=E_{ik}(a) \mbox{ if $i\neq k$,}$$ $$[E_{ij}(a),E_{kl}(b)]=1 \mbox{ if $i\neq l$ and $j\neq k$.}$$ Yet the group presented by generators and this relations is not $E(n,A)$, but what we call the $*n$-th unstable Steinberg group* $\mathrm{St}(n, A)$ of $A$. In general, this is larger than (precisely, an extension of) $E(n,A)$.
(NB: The following paragraph has been edited to make it match reality. Thanks to Allen for pointing the mistake in the comment bellow)
This is seen, for example, because the map $\mathrm{St}(n, A)\to E(n,A)$ has a non-trivial kernel. Indeed, after passing to the direct limit as $n$ goes to infinity, the kernel of that map is precisely the second algebraic $K$-theory group of $A$, $K_2(A)$. Milnor shows in his book that $K_2(\mathbb{R})$ is uncountable, and describes $K_2(\mathbb Q)$ (he also shows that $K_2(\mathbb Z)$ is cyclic of order two, so this can be done for rings that are not fields too...)
A nice reference for all this is Jonathan Rosenberger's Algebraic $K$-theory and its applications, and there is John Milnor's Introduction to algebraic $K$-theory, which is also extremely nice.
A short intuitive description for $K_2(A)$ is: it measures how much more information is there in the elementary matrices of a ring which does not follow formally from the Steinberg relations.
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The kernel of the stabilized map $St(\infty,A)\to E(\infty,A)$ is $K_2(A)$, not $K_3(A)$. Milnor showed that $K_2(\mathbb Z)$ is cyclic of order 2. – Allen Hatcher Dec 30 '09 at 16:37
Suppose $R=\mathbb F_2$ is the field with two elements and $n=2$. Then we need not consider the matrices $E_i(a)$, for the only possible $a$ is $1$, so your group is generated by $\alpha=E_{12}$ and $\beta=E_{21}$. Your fourth relation implies that $$\alpha^2=\beta^2=1.$$ Your fifth equation is empty in this case (for it is only meaningful for when $a$ and $b$ are non-zero elements of the field which add up to a non-zero element of the field!) Finally, your sixth relation in this case tells us that $(\alpha\beta\alpha)^2=(\beta\alpha\beta)^2=1$, but these two equalities follow from the previous equation.
We thus see that the group generated by the $E_i(a)$'s and the $E_{ij}$ subject to your relations is, in this case, $$\langle\alpha,\beta:\alpha^2=\beta^2=1\rangle.$$ This is an infinite group, so it is not $\mathrm{GL}(2,\mathbb F_2)$.
Exactly the same reasoning shows that the same happens for all $n\geq 2$: you get free products of cyclic groups of order $2$.
NB: It wouldn't be the first time that $\mathbb F_2$ behaves differently from other fields... I doubt that is the case, and surely someone with enough determination will be able to use GAP to check whether the group given by your generators and relations is or not $\mathrm{GL}$, at least for other small fields...
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I suggest you give Mariano a check mark. MathOverflow does not function properly when you change a question substantially after it has been correctly answered.
Regarding your revised question, we can fix the presentation by throwing it away and using Steinberg's presentation, which works without problems. I couldn't find an online copy of his paper, but this 1971 article describes how to present the R-points of any semisimple simply connected Chevalley-Demazure group, for R any commutative ring.
I have heard that the presentation in the case of the general linear group is due to Schur, but I don't know a reference.
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You might want to look at Cohn's paper "On the structure of the ${\rm GL}_{2}$ of a ring", MR0207856.
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text: A navigational canal is planned to be constructed to link the Black Sea with the Marmara Sea in Istanbul, Turkey. This canal will be built beside an important freshwater lake, with a minimum distance of 1.0 km between them. This lake is an essential source of freshwater for the city of Istanbul. To evaluate the effects of canal construction on the freshwater aquifer between the lake and the canal, a 2D finite difference groundwater flow and solute transport model were developed to quantify the possible seepage flow and to simulate the spatial variations of the salinity distribution in the coastal aquifer, taking into consideration the transition zone between the freshwater and seawater bodies. The numerical model was calibrated by the average hydrologic conditions of 18 years of well records. Arc GIS was used to prepare the spatial datasets for the conceptual model in MODFLOW. The results indicated that, after canal implementation and the attaining of a steady state, 25% of the annual available water in the lake will be drained to the canal in terms of seepage. It was also found that the length of the seawater intrusion in the aquifer is strongly related to the hydraulic gradients, when the lake water level declines for 1 m above the mean sea level, for example, the length of the saltwater extends to halfway between Terkos Lake and Canal Istanbul.


Nokia C3-01 - Change the time and date
Select Menu > Settings and Date and time.
Change the time zone when traveling
 1. Select Date & time settings > Time zone:.
 2. Select the time zone of your location.
 3. Select Save.
The time and date are set according to the time zone. This makes sure that your device displays the correct sending time of received text or multimedia messages.
For example, GMT -5 denotes the time zone for New York (USA), 5 hours west of Greenwich, London (UK).
Related topics


text:
tear down(redirected from tearing me down)
Like this video? Subscribe to our free daily email and get a new idiom video every day!
1. To rip or pull something down from a surface. A noun or pronoun can be used between "tear" and "down." The warden went around tearing down pictures and posters hanging up in prisoners' cells.
2. To dismantle or disassemble a large object or structure. A noun or pronoun can be used between "tear" and "down." After the concert, we'll need everyone on hand to help tear down the set.
3. To demolish a large object or structure. A noun or pronoun can be used between "tear" and "down." I can't believe they haven't torn that old building down yet.
4. To deride, vilify, or excoriate someone or something. A noun or pronoun can be used between "tear" and "down." The director has long been a bully, tearing down those around him who would dare to challenge his authority. I don't understand why he's always tearing my work down.
5. To travel down or along something very quickly. The kids tore down the stairs to see what Santa Claus had brought them for Christmas. The motorcycle tore down the street in an ostentatious display of speed and motor power.
1. slang Very upset or emotional. Sean has been tore down since his wife left him. A: "Did you hear that Joe died?" B: "I know, I've been tore down about it."
2. slang Intoxicated. Do you remember last night at all? You were tore down!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
tear someone or something down
to criticize or degrade someone or something. Tom is always tearing Jane down. I guess he doesn't like her. It's not nice to tear down the people who work in your office. Why are you always tearing my projects down?
tear something down
to dismantle or destroy something. They plan to tear the old building down and build a new one there. They'll tear down the building in about two weeks.
tear down something
to race down something very fast. (See also tear something down.) The girls tore down the hallway as fast as they could run. They tore down the stairs and ran out the door.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
1. Demolish, take apart, as in They tore down the old tenements, or He loved to tear down old engines. [Early 1600s]
2. Vilify or discredit, as in He's always tearing down someone or other. [First half of 1900s]
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. To demolish something; raze something: The city tore down the old warehouses. I put up posters, but my opponents tore them down.
2. To take something apart; disassemble something: The mechanic tore down the engine. We took out the motor and tore it down to find out what was wrong with it.
3. To make vicious and damaging statements about someone or something; denigrate someone or something: The speakers tried to change the audience's opinion, but the audience tore the speakers down.
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
See tore up
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.


Accessory Dwelling Units
Guide to Developing Accessory Dwelling Units
An Accessory Dwelling Unit (ADU), also known by other terms such as a laneway house, granny flat, or mother in law unit, is a separate housing unit on the same lot as a typical single family house. It can be either attached or detached from the main house. It could be rented out to a tenant, or it could be provided for free to the homeowner's friends or family.
ADUs are self-contained dwellings. That means an ADU should provide space for cooking, sleeping, and using the bathroom.
ADUs have a long history in Bremerton. They were a popular form of housing since the days of World War 2, when Bremerton's population boomed and housing was desperately needed. However, because many of those historical ADUs were small and built cheaply and quickly, they were not often considered in a positive light. Most people can imagine the benefit of having an ADU on their property, whether for housing their loved ones who can no longer live independently, or gaining additional income from rent. However, in recent decades the Zoning Code limited ADU construction, and many property owners that wanted to accommodate an ADU on their property were blocked from doing so.
In December of 2020, the City of Bremerton took a huge step forward and made it easier than ever to establish an ADU (Ordinance No. 5410). This page will help you to determine whether an ADU is feasible for your property, and inform you of the City's requirements for ADUs. Below is a table showing some quick standards for ADU construction. Click here for a helpful guidebook that will walk you through developing an ADU. If you have any questions, please contact the Department of Community Development at or _PHONE_.
What is an ADU? An additional, accessory dwelling unit on a lot with an existing principal unit added to or created for use as a complete, independent or semi-independent living unit with provisions for cooking, eating, sanitation and sleeping.
What areas of the City are ADUs permitted? An ADU may be permitted anywhere a new or existing single-family dwelling unit is allowed. ADUs are exempt from the density requirements of the underlying zone.
What is the maximum size of an ADU (square footage)? An ADU is limited to one thousand (1,000) square feet or not more than sixty (60) percent of the principal unit's total habitable floor area, whichever is greater.
 - If the primary residence is greater than 1667 square feet, an ADU can be 60% of its size.
 - If the primary residence is 1667 square feet or less, an ADU can be up to 1000 square feet.
How many ADUs can a property have? Each property can have a one (1) single family home and two (2) ADUs, for a maximum total of three (3) dwelling units. These ADUs can be either detached or attached to the single family home.
Must the owner live on site? No, owner occupancy is not required.
Is parking required for an ADU? The first ADU is not required to provide an additional off-street parking space. The site must comply with Chapter 20.48 BMC - that means the two (2) paved parking spaces for the single family home must be provided. A 2nd ADU must provide an additional paved parking space, for a total of three (3) spaces.
What are the required yards (setbacks & development coverage)? In the R-10 zone, the minimum front and rear yard setbacks are 15 feet, and the side yard setbacks are 5 feet. Contact a Planner to determine your zone.
An ADU must comply with the development standards of the underlying zone for the principal unit including setbacks, height, and lot coverage. However:
 - An ADU can be placed directly on the rear property line, if it abuts an alley.
 - An ADU can be as close as 3 feet from the side property lines, as long as the wall closest to the property line is built according to fire separation standards.
What are the design standards for ADUs? ADUs must preserve the appearance of the main house as a single-family dwelling,and the design of an ADU should blend into the existing house or the neighborhood. That means no duplex-like designs, and nothing that sticks out like a sore thumb. Try to design an ADU so that the materials used complement the design of the main house.


Luc Shelton
WPF, XAML, and C#: Integrating Windows 10 Features
WPF, XAML, and C#: Integrating Windows 10 Features
Created 2 years ago
3 Minute(s) to read
Posted 2 years ago Created 2 years ago 3 Minute(s) to read 0 comments
The following blog post presents a step-by-step guide on how to integrate Windows 10 features with your WPF desktop application written in C#, including the ability to display toast notifications ot the user.
Requirements
In order to integrate this functionality, you are going to require the following pieces of software.
Software
Packages
Using these NuGet packages is entirely optional, but are recommended for an easier development experience. This includes the creation, formatting, and presentation of toast notifications
Concepts
You will first need to familiarise yourself with some high-level concepts that are used including COM classes and objects, AppUserModel, and shell links.
Toast Activator
Your desktop application will require an implementation, or class definition that can be used for handling toast notification activations from the operating system (i.e. in this case Windows 10). This is a class that can receive signals or requests from Windows 10 whenever a user interacts or engages with a toast notification either from the hub or the prompt once it is displayed. It looks something like this.
// The GUID CLSID must be unique to your app. Create a new GUID if copying this code.
[ClassInterface(ClassInterfaceType.None)]
[ComSourceInterfaces(typeof(INotificationActivationCallback))]
[Guid("replaced-with-your-guid-C173E6ADF0C3"), ComVisible(true)]
public class MyNotificationActivator : NotificationActivator
{
 public override void OnActivated(string invokedArgs, NotificationUserInput userInput, string appUserModelId)
 {
 // TODO: Handle activation
 }
}
This code snippet defines the class that will be responsible for handling with requests from the toast notification once a user engages with it. The invoked args can be defined at a later stage once we construct the toast notification.
You will need to associate your application with a GUID that can be easily (and freely) generated from an online tool such as this website. Replace the example GUID string in the GuidAttribute with the one that you generated.
Project Setup
You will need to modify your existing C# project before being able to proceed in enabling toast notifications or other Windows 10 features in your application.
Open up the *.csproj file for your project in a text editor, and place the following XML elements below.
<PropertyGroup>
...
 <TargetFrameworkVersion>v4.7.1</TargetFrameworkVersion>
 <TargetPlatformVersion>10.0.17763.0</TargetPlatformVersion>
...
</PropertyGroup>
Change the version number of TargetPlatformVersion to the version number of the Windows 10 SDK that you have installed. Once completed, you will be required to reload the project when returning to Visual Studio. You should now have the ability to add references to WinRT references and libraries through the Reference Manager for the C# project.
Next, you will want to add references to a couple of WinRT references (*.winmd). Add references to Windows, and Windows.UI.
Reference Manager Frontend
For convenience, you will likely want to make use of this particular third-party package for invoking toast notifications without the setup.
Start Menu Shortcuts
As stated in the MSDN documentation for toast notifications, in order for it to work your application must have an associated shortcut in the Start Menu folder for Windows 10, that contains the CLSID of the COM object that is used for handling operations from Windows 10. You can make use of the following code snippet for resolving the absolute path to the Start Menu for the current user.
Shortcut Properties
You can make use of the following third-party NuGet packages for creating a shell link to your desktop application, and appending properties to it also. As mentioned above, you are going to need to add a property to your new *.lnk (Start Menu shortcut) that specifies the AppUserModelId.
Resources
Technologies:
.NET Framework
Comments
Comments


text:
Delineation of Saline Water Intrusion Lateral Extent Using Hydro-chemically and Geo-electrically Derived CRS - Model Parameters - A Case Study of Eastern Dahomey Basin, Nigeria
This study was another attempt to map the subsurface lateral extent of saline water intrusions into aquifers at the eastern part of Dahomey basin, Nigeria. The study comprised geo-electric sounding method consisting of 108 vertical electrical soundings (VES) data acquired using Schlumberger array technique and hydro-chemical analysis of 61 water samples. The geoelectric survey results were presented as average longitudinal Conductance and average longitudinal Resistivity maps. The longitudinal conductance values vary from moderate to high (20 - 180 mhos) in the coastal areas, while lower values (lesser than 10 mhos) were recorded in the mainlands. Conversely the average longitudinal resistivity values were low to moderate (0.26 - 41.7 ohm-m) in the coastal areas and in few places such as Agbabu, Legbogbo and Sabomi in the mainland, while higher values (more than 60 ohm-m) were obtained from the mainlands. The hydro-chemical analysis results was presented as equivalent Salinity map; its values range from 25.8 mg/l (Ode-Irele) to 2808 mg/l (Asisa), high values were obtained from Ugbo, Ugbonla, Odonla, Idogun and Ayetoro area in the southeastern part of the study area and likewise at Agbabu in the north central part of the study area. The results were synthesized using CRS-model. The final CRS-model map showed that the saline water intrusion extended to 35 % of the total area which covers; most part of the coastal area and Agbabu in the mainland.
Keywords: Saline water intrusion, saline-freshwater boundary, vertical electrical sounding (VES), hydrochemical analysis, synthesis and CRS-model.


Reading Digital Callipers With an Arduino / USB
169,392
169
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How to use an Arduino to read the signal from a set of digital callipers and send the reading over USB.
Why?
This might be useful for accurate position sensing in home made / hacked computer aided manufacture systems. Adds USB functionality to your callipers.
A great reference on reading digital callipers can be found at:
_URL_
What this instructable adds to the shumatech tutorial is:
How to use an Arduino to read the callipers (using very few extra components).
Details of another protocol found to be in use on some callipers.
Basic Arduino code is provided.
To see more of my work please visit j44industries.
Step 1: The Callipers
The callipers I have been working with were the Electronic Digital Callipers by Precision Gold. I bought the callipers from Maplin (item code N48AA) in the UK for just under £20.
After some experimenting with a multi meter and a jyetech oscilloscope (a very cheap basic oscilloscope that can be bought in kit form for under £40) I found the pins to be as shown in the diagram.
Step 2: Voltages: Logic and Power
The Arduino uses 5V logic but the callipers output 1.5V logic. This is a bit of a bodge and may not always work, really a proper logic level conversion circuit should be used but the flowing is a simple hack that worked well with my Arduino:
My Arduino changed between logic high and logic low at about 2.5V (this could vary a bit between boards).
Connecting the positive pin on the callipers to the 3.3V supply means when the clock and data pins are connected to the arduino their voltage seems to vary between 3.3V and 1.8V, which is the Arduino reads as logic high and low respectively.
Powering the callipers with the Arduino:
To avoid needing a battery in the callipers the power circuit pictured can be used (remove the button cell). This method relies on using an LED to regulate the supply voltage for the callipers.
Resistor
About 200Ohm
Capacitor
I used a 10uF which worked well, but there would be no harm in using a larger capacitance. 2V or more rating.
LED
For the LED try to find one which has as close to a 1.6V drop across it as possible.
I used a red LED with a 1.8V drop across it. Red and IR LEDs tend to have low voltage drops across them.
Step 3: The Data Protocol
The data protocol used on my callipers was as follows:
Clock pulse as shown in the picture.
Reading the data on a falling clock edge gave a sensible output.
Example data output:
1,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, (Screen shows 0.00 mm or 0.000 inches)
1,0,0,0, 1,0,1,1, 1,1,1,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, (Screen shows 10.00mm)
1,0,0,1, 0,0,1,1, 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,1,0,0, (Screen shows -1.00mm)
1,0,0,0, 1,1,0,0, 1,0,1,0, 1,1,1,0, 0,0,0,0, 0,0,0,0, (Screen shows 150.00mm)
Interpretation of data:
?,X,X,X, X,X,X,X, X,X,X,X, X,X,X,X, ?,?,?,?, ?,Y,?,?
? = Not sure
X's for a binary number with least significant bit at the start of the string. The binary number is the distance in mm times 100.
Y = Sign bit if Y = 1 number is negative if Y = 0 number is positive.
Note: make sure the callipers are set to mm the inches mode behaves very similarly except the least significant bit is used to show 1/2000ths of an inch.
Step 4: Arduino Code
This is a very basic Arduino code that should be compatible with several calliper data protocols.
There are commas in between each value to make it easy to use .CSV files to import the data into spreadsheets.
The main requirement of this code is that the data is read on the falling edge of a clock pulse.
Hopefully this code should mean when you connect your Arduino to the computer and use the serial monitor at 115200 Baud you will get sensible looking binary out.
Trouble shooting:
If the length of the binary strings changes a lot you may have the clock and data pins the wrong way around.
Code:
//Simple Digital Calliper Reader
//See _URL_
// Pin Declarations
int dataIn = 11;
int clockIn = 12;
// Variables
int clock = 1;
int lastClock = 1;
unsigned long time = 0;
unsigned long timeStart = 0;
int out = 0;
void setup() {
 // Pin Set Up
 pinMode(dataIn, INPUT);
 pinMode(clockIn, INPUT);
 Serial.begin(115200);
 Serial.println("Ready: ");
}
void loop(){
 lastClock = clock;
 clock = digitalRead(clockIn);
 if (lastClock == 1 && clock == 0){
 out = digitalRead(dataIn)+digitalRead(dataIn)+digitalRead(dataIn); // Tripple sampling to remove glitches
 if((micros() - time) > 800){
 Serial.println(" ");
 }
 else if((micros() - time) > 400){
 Serial.print(" ");
 }
 if (out > 1){
 Serial.print("1");
 }
 else{
 Serial.print("0");
 }
 Serial.print(",");
 time = micros();
 }
}
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 40 Discussions
 0
 None
 AuliaW1
 Question 5 months ago
 hi, thank you for this! it's very helpfull :)
 but i wonder by 'Reading the data on a falling clock edge ....'. does the data sent for every falling edges or just for the big one (0.4ms pulse)? thanks again anyway ;)
 0
 None
 RafaelL112
 6 months ago
 Hi, I did make this project, but I would like to add a wireless component to send/receive data. It's possible? Tks
 0
 None
 dobata
 2 years ago
 Congratulations, the trick about connect the 1.5V and 3.3V positives and use the led as voltage divider is very smart!
 0
 None
 MarcR15
 2 years ago
 The example code doesn't perfectly correspond to the example data output.
 In the code, a 400 microsecond delay will print out a single space character. But in the example data output, you have commas.
 0
 None
 dan3008
 2 years ago
 I got the exact same callipers yesterday from maplin for £9.99 on sale :D Looking at doing this now, so I can use the calipers with my computer :D
 0
 None
 Raphango
 2 years ago
 Great! Congratulations!!
 0
 None
 sspence
 3 years ago on Introduction
 For the 52 bit Mitutoyo protocol, see _URL_
 0
 None
 sspence
 3 years ago on Introduction
 I have a 5 pin Igaging Origin unit. Do you have any pinout data?
 0
 None
 paulodrugos
 4 years ago on Introduction
 Thanks a lot for the example and the arduino code!
 I find out how to convert the binary output from the caliper to decimal value, the caliper sends a 24bits package.
 That package follows the pattern attached, so the value is in that 16 bits (from bit1 to bit16) reversed...
 Example: My caliper measure 59.0mm, the data output was: 1,0,1,0, 0,1,0,0, 0,1,1,1, 0,1,0,0, 0,0,0,0, 0,0,0,0.
 Reversing the 16 bits I got: 0001011100010010, wich, in decimal, is 5906
 bits.png
 0
 None
 linux-works
 4 years ago on Introduction
 what is the purpose of the capacitor across the diode? I see the diode is a 'poor mans zener' and the series R is the current limit so the zener (I mean diode) won't burn out. but why do you need a cap across it? for extra filtering? you would be feeding clean dc to this, anyway


Delta Migrations
A Delta Migration occurs when you have records that already exist in the Akamai Identity Cloud but might require an update from a legacy system. (For example, the Identity Cloud might include records for beta testers who also have user accounts in your legacy system.) A delta migration functions the same as a regular migration, but with the following additional logic:
 - IF a record does NOT exist THEN it will be created using the normal data migration process.
 - IF a record DOES exist (as detected by unique key violation response from entity.bulkCreate) THEN an attempt will be made to update the existing record using /entity.update with a defined primary key (such as email).
In other words, suppose you are using email as your primary key and your datafile consists of a single record, a record that has as the email address. When you run the delta migration, checks to see if your user profile store already contains a record that has the email address If it does not, then a new record is written. However, if the user profile store already contains a record that has the email address then the existing record is replaced by the record found in the datafile. This behavior occurs only during a Delta Migration. If you do not do a Delta Migration then the existing record is left alone and the new record is not written to the user profile store.
It is important to note that duplicity will not be ignored. Because of that, duplicate records in the CSV import file could trigger an update case that might not be desirable (i.e., replacing an existing record that you really didn't want replaced). Make sure your import CSV file is free from duplicate records (records containing the same primary key, usually email). Keep in mind as well that plural structures addressed in an update will be replaced with new information contained in the import CSV. That means that existing InternalIds associated with plural entries (used for indexing and iteration) will be re-assigned. It is possible, albeit very unlikely, that you could have downstream third-party systems that depend on existing plural IDs. You should verify this is not the case before initiating a Delta Migration.
Delta Migrations produce two additional artifacts (update_success.csv and update_fail.csv) that indicate that status of records that were updated during the execution of the script. As with other log files, these files are appended with a timestamp:
update_fail_ May_22_2019_10_55.csv
To run a Delta Migration simply add the arguments -dm and -pk when executing For example:
python3 -u -i 382bgrkj4w28984myp7298pzh35sj2q -s b2gfp7mgk9332annghwcf0po57xzqht5 -dm -pk email test_users.csv
Remember that the -pk (primary key) must be an attribute that is designated unique in the schema and must be present in the import CSV file. This attribute will be used to find and perform entity.update API calls on the existing record, overwriting the old record with data supplied from the corresponding record in the import CSV file. In the example above, the email attribute has been designated as the primary key. Other primary keys can be used, such as customer loyalty number, but that data:
 - Must also be present in the import CSV and present in the schema.
 - Must be unique, in that no two records will contain the same value for the attribute. The customer loyalty number can't be used as a primary key if multiple customers (e.g., all the members of a family) share the same loyalty number.


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OBJECTIVES: To study the health-related quality of life (HRQOL) in severe cryoglobulinaemic vasculitis (CV) associated with hepatitis C virus infection (HCV) and to describe the effect of rituximab on HRQOL. METHODS: HRQOL was evaluated with the Medical Outcomes Study Short Form 36 (SF-36). Health Survey questionnaire was submitted to 15 patients with severe CV. SF-36 questionnaire was evaluated at baseline and after rituximab. Physical Health Composite Summary (PCS) and Mental Health Composite Summary (MCS) scores were calculated according to standard protocols, and normalised to healthy controls. SF-36 summary scores were compared with those of HCV positive patients without CV, and other vasculitis published in the literature. European Quality of Life-5 dimensions (EQ5D) scores were also derived. RESULTS: Physical and mental domain scores were all reduced if compared with those of the healthy population, with physical domains being greatly affected. HRQOL of CV was comparable with HRQOL reported for the other small vessel vasculitis. The development of CV in HCV positive patients worsened PCS rather than MCS score. Birmingham Vasculitis Activity Score (BVAS) did not correlate with HRQOL, while the presence of peripheral neuropathy was associated with a worse HRQOL. Early rituximab treatment improved both PCS and MCS scores, with long-term effects. CONCLUSIONS: PCS rather than MCS was affected in HCV positive patients when CV is present. Rituximab improved both physical and mental domains, thus supporting its use before antiviral therapy in severe HCV-related CV. The cost/benefits ratio of a sequential therapy may be supported.
|Autori interni:||BOMBARDIERI, STEFANO|
|Autori:||Quartuccio L; Isola M; Masolini P; Scaini P; Zani R; Tavoni A; Pietrogrande M; Bombardieri S; De Vita S.|
|Titolo:||Health-related quality of life in severe cryoglobulinaemic vasculitis and improvement after B-cell depleting therapy.|
|Anno del prodotto:||2013|
|Appare nelle tipologie:||1.1 Articolo in rivista|


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Purchase GIS Data
All Data Layers displayed on Geographical Inquiry System can be obtained from the county for a small fee. Vector (Line & Polygon) Data can be copied to CD in ESRI's shapefile format. A CD with all Geographic Data can be obtained for $75.00. Subsets of the data can be reproduced on CD for a minimum of $50.00. This data only includes a limited amount of parcel information. Detailed parcel information would have to be obtained through Randolph County's Tax Department.
A Countywide copy of 2007 Aerial Photos in MrSID image compression format on DVD can be purchased for $100.00.
MrSID images can be viewed with most mapping software (ArcGIS and AutoCAD).
- To view MrSID images with Internet Explorer a window's browser plugin must be downloaded from LizardTech.
GIS Data requests can be made by e-mail to: _EMAIL_
Free 2007 Aerial Photos
5000 x 5000 foot Aerial Photos in MrSID image compression format can be downloaded from NC One Map for free. These images are based on 200 scale tax map grids. There are 939 images that cover Randolph County.
- Image(s) needed can be determine by Tax Map Number or Parcel
Identification Number(PIN) obtained by Randolph County's
Geographic Inquiry System.
- Or use the Randolph County Orthophoto Index to find area
- Determine image needed from PIN.
- Download Data from NC One Map
- When downloading images make sure you copy .sid (image file) and .sdw (world file ~ to be used with mapping software).
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Halau hula
From Wikipedia, the free encyclopedia
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A hālau hula is a school in which the ancient Hawaiian dance form called hula is taught. The term comes from hālau, a workshed, and hula, the traditional dance of the Hawaiian Islands. Prior to European contact, the Hawaiian language had no word for "school," as children learned from their parents, aunts, uncles, and elders. Children who showed promise in a specialized art or craft would be apprenticed to a master and work in the master's hālau. School, as a specialized place of instruction, did not exist in Hawai'i prior to the arrival of Christian missionaries.
In ancient times, students joining a hālau hula would be dedicated solely to the study of hula for the duration of their training. Their families would provide maintenance for the support of the hālau. Today, students have set hours for study at the hālau, and often pay monthly dues to help the kumu, roughly "headmaster" of the hālau with support and maintenance.
There is great variation between hālau. Some focus primarily on ancient styles of hula, others on modern styles, and some study both. Some hālau continue to preserve very strict kapu, sacred protocols, while others are noa, or free of kapu. The styles of hula taught in different hālau also can vary greatly. Styles are passed down from kumu to haumana, and knowledgeable students of hula can tell which hula lineage is represented by watching the dancer's presentation.
Location of hālau also can vary widely, from the garage of the kumu's home to community centers to the lawns of parks, hālau hula can be found dancing wherever there is space and interested students.
Internal Structure of Hālau Hula[edit]
Internal structure of hālau also can vary quite a bit, but in general a hālau hula is led by a kumu hula. The position is roughly equivalent to that of headmaster of a private school. The kumu is responsible for maintaining the integrity of the style and traditions handed down by the kumu's own kumu. The kumu is responsible for the spiritual integrity of the hālau, and the kumu is responsible to instruct the students to properly care for their own physical well being by teaching good exercise, dietary, and hygienic practices through instruction and example.
The po'o pua'a, or head student, is often the kumu's protégé, and under the direction of the kumu oversees the protocols and rituals of the hālau.
The 'alaka'i, "guides," act as teaching assistants. The more advanced 'alaka'i are effectively student teachers. 'Alaka'i often will assist less experienced haumana with their lessons, and coach them with the more difficult steps and moves.
Kokua, helpers, assist in a variety of areas, from lei making, to helping other haumana dress, to making the phone calls, doing fund raising, and helping the 'alaka'i to coach less experienced students.
Haumana, the students, range in age from toddlers to senior citizens.
In ancient times, halau hula training was strict. Haumana were put on kapu or forbidden rules of conduct which banned the cutting of hair and the practicing of any kind of sexual activity. Presently halau hula each have their own set of rules for their haumana. Many halau hula today still enforce the ancient kapu of cutting one's hair.
Each year, the Merrie Monarch Festival is held in Hilo, where the distinctive style of each hālau can be seen.
Four basic steps are commonly used in all halau hula. The kaholo, or travel step usually consists of four beats. This step is probably one of the most common, especially for beginning students of hula, when a mele or song is danced. The kaholo is often the dance step used during the "vamp," musical measures between the verses of songs.
The hela is a step occupying a one beat count and requires one to point out one foot at a time in front of one's body. The foot slides forward just above, and parallel to, the ground in a graceful point.
The 'uehe is done by lifting and setting back one foot then elevating both heels and pushing the knees forward rapidly. Depending on the style of 'uehe, the knees may move straight forward or at angles of up to 45 degrees from the center line. The lifted foot alternates.
The ami requires the dancer to rotate his or her hips in an elliptical motion while keeping both feet firmly planted on the ground.
Each of the steps has many variants.
All of the basic steps in hula require the shoulders to remain steady and both knees to be in a bent position at all times.
Notable halau hula[edit]
 - Halau Na Mamo O Pu'uanahulu, Kumu Hula Sonny Ching (Honolulu)
 - Halau Na Meakanu O Laka O Hawai'i, Kumu Rolanda Mohala Valentin Reese (Los Angeles, CA) _URL_, _URL_
 - Halau Hula Olana, Kumu Hula Howard and Olana Ai (Pearl City, Hawaii)
 - Hula Halau 'O Kamuela, Kumu Hula Kunewa Mook and Kaui Kamana'o (Kalihi/Waimanalo, Hawaii)
 - Hålau Nå Mamo O Pana'ewa, Kumu Hula Keoki Wang (Los Angeles, CA) _URL_
 - Na Lei 'O Kaholoku, Kumu Hula Nani Lim Yap and Leialoha Amina (Kohala, Hawaii)
 - Halau Hula Moani'a'ala Anuhea, Kumu Hula Christina Nani Aiu-Quezada (Monterey Park, CA)
 - Halau Mohala 'Ilima, Kumu Hula Mapuana de Silva (Ka'ohao, Kailua, Hawaii)
 - Halau Hula a Kawika laua 'o Leinani, Kumu Hula Kawika Viloria and Leinani Viloria (Los Angeles)
 - Keali'i 'O Nalani, Kumu Hula Keali'i Ceballos (Los Angeles)
 - Aloha 'Aina, Kumu Hula Verena Kainz (Salzburg, Austria)
 - Na Lei Hulu I Ka Wekiu, Kumu Patrick Makuakane (San Francisco, CA)
 - Halau Hula Na Pua O Ka La'akea, Kumu Shawna Alapa'i (San Rafael, CA)
 - Hālau Hula O Malulani, Kumu Hula Kapena Malulani Perez (San Diego, CA.)
 - Halau O' Makani Kai Polynesian Dance Troupe (San Diego, CA)
 - Academy of Hawaiian Arts, Kumu Mark Keali'i Ho'omalu (Oakland, CA)
 - Hula Halau O Lilino'e, Kumu Sissy Kaio (Carson, CA)
_URL_ Hula Page
_URL_ Essay 1
_URL_ Essay 2


text: With the semiconductor technology node advanced to 5nm and beyond, chemical suppliers are facing challenges not just to produce cleaner chemicals with lower contaminations, but also need to identify those factors to cause unknown impact with new wider applications of current bulk chemicals. The efforts include thorough understanding of current specification, theory of chemical production process, production technique, equipment, handling, and precise chemical analysis. As result, we can Identify customer's applications to refine analysis technique or even development of new test method. K-PPC has focused on "finger-printing" of wet process bulk chemicals by close cooperation with customers and makers to solve issues and enhance quality management beyond existed ways. At the end, we can establish this new method of specification definition for the implementation of future advanced technology node.


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Definition of Custard apple
1. Noun. Any of several tropical American trees bearing fruit with soft edible pulp.
Group relationships: Annona, Genus Annona
Specialized synonyms: Annona Cherimola, Cherimoya, Cherimoya Tree, Annona Diversifolia, Ilama, Ilama Tree, Annona Muricata, Prickly Custard Apple, Soursop, Soursop Tree, Annona Reticulata, Bullock Heart, Bullock's Heart, Bullock's Heart Tree, Annona Squamosa, Sweetsop, Sweetsop Tree, Annona Glabra, Pond Apple, Pond-apple Tree, Asimina Triloba, Papaw, Papaw Tree, Pawpaw
Generic synonyms: Fruit Tree
2. Noun. The fruit of any of several tropical American trees of the genus Annona having soft edible pulp.
Specialized synonyms: Cherimolla, Cherimoya, Guanabana, Soursop, Bullock's Heart, Jamaica Apple, Annon, Sugar Apple, Sweetsop, Ilama, Pond Apple
Group relationships: Custard Apple Tree
Definition of Custard apple
1. Noun. A tree native to the tropical New World. Scientific name: ''Annona reticulata.'' ¹
2. Noun. The fruit of this tree. ¹
3. Noun. Sugar apple, a related fruit. ¹
¹ Source: wiktionary.com
Custard Apple Pictures
Click the following link to bring up a new window with an automated collection of images related to the term: Custard Apple Images
Lexicographical Neighbors of Custard Apple
Literary usage of Custard apple
Below you will find example usage of this term as found in modern and/or classical literature:
1. An Illustrated Flora of the Northern United States: Canada and the British by Nathaniel Lord Britton, Addison Brown (1897)
"CUSTARD-APPLE FAMILY. Trees or shrubs, generally aromatic, with alternate entire leaves. Stipules none. Sepals 3 (rarely 2), valvate or rarely imbricate...."
2. Southern Wild Flowers and Trees: Together with Shrubs, Vines and Various by Alice Lounsberry (1901)
"The custard apple and the species that follow would perhaps be the ones more generally encountered. A. reticulata principally differs from the foregoing..."
3. Chambers's encyclopædia by Chambers W. and R., ltd (1874)
"custard apple, the name commonly given in the West Indies and other tropical countries to the fruits of certain species of Anona, a genus of trees of the..."
4. Plant Life of Alabama: An Account of the Distribution, Modes of Association by Charles Theodore Mohr (1901)
"custard apple Family. ASIMINA Adán«. Kam. I'l. 2:365. 1763.1 About 7 specie--, t rccand shrubs of warmer America...."
5. Fruit Recipes: A Manual of the Food Value of Fruits and Nine Hundred by Riley Maria Fletcher Berry (1907)
"The fruit which bears the family name individually, the custard apple, or Bullock's Heart (.A. reticulata), resembles distantly the wild Northern papaw...."
6. The Plant World by Plant World Association, Wild Flower Preservation Society (U.S.), Wild Flower Preservation Society of America (1905)
"... the alligator pear, the custard apple, the cherimoya and the red fruits of the akee. Among the many unfamiliar flowers, we noted the scarlet hibiscus,..."


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Taco Seasoning Nutrition Facts
Setting foot into the flavorful world of Taco Seasoning nutrition facts, this blog post is about to spice up your knowledge on what goes into your favorite Mexican food staple. Brace yourself for a fascinating journey that scrutinizes the caloric content, sodium levels, and surprising dietary implications, revelations that could add a new layer of depth to your taco nights.
Taco Seasoning nutrition facts reveal the essential information to create a flavorful and health-conscious meal. This popular spice blend is commonly used in Mexican cuisine, adding zest and depth to various dishes. In this article, we will delve into the nutritional content of taco seasoning, provide a comprehensive table detailing its essential nutrients, and answer frequently asked questions about this versatile spice blend.
Nutritional Content of Taco Seasoning
The nutritional content may vary depending on the brand or specific recipe. The table below represents the approximate dietary content of a generic taco seasoning mix.
|Nutrient||Amount per Serving (1 tbsp / 6g)|
Frequently Asked Questions
Is taco seasoning high in sodium?
Depending on the specific brand or recipe, taco seasoning can be high in sodium. However, there are low-sodium and sodium-free alternatives available. Additionally, you can make your taco seasoning mix at home to control the sodium content.
Can I make my taco seasoning at home?
Yes, making your taco seasoning is simple and allows you to adjust the ingredients to your taste preferences and dietary needs. A basic recipe may include chili powder, cumin, paprika, onion powder, garlic powder, oregano, and salt, with optional additions like black pepper, red pepper flakes, or cayenne pepper for extra heat.
Is taco seasoning gluten-free?
Many taco seasoning mixes are gluten-free, but some may contain ingredients derived from wheat, such as wheat flour or modified food starch. Always check the label or contact the manufacturer if you have concerns about gluten content. You can also create a gluten-free taco seasoning mix using gluten-free ingredients.
Understanding Taco Seasoning nutrition facts can help you make informed decisions when preparing your favorite Mexican dishes. You can adjust your recipes or seek healthier alternatives to create flavorful and satisfying meals by knowing the nutritional content and possible sodium levels. Homemade taco seasoning allows you to control the ingredients, sodium content, and spice level, catering to your dietary needs and taste preferences. With this knowledge, you can enjoy a delicious and health-conscious taco night in your home.


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Learn how to make Funny Pocoyo and friends with Play Doh. Funny parodical play dough learning.
This video is purely transformative and more creative, and less factual and falls under the fair use exception to copyright. Using Pocoyo copyright material for illustration or example and reproducing, reposting, or quoting in order to memorialize, preserve for parody and educational purposes.


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Definition of citral in English:
noun[mass noun] Chemistry
A fragrant liquid occurring in citrus and lemongrass oils and used in flavourings and perfumes.
- An example of counteraction is mixing citral, a pale-yellow liquid used in the perfume and flavoring industries, to neutralize the amines emitted from decaying meat in the dumpster behind a restaurant.
- Odors used included amyl acetate, which smells like bananas; phenyl ethyl alcohol, which smells like roses; propionic acid, which smells like vinegar; eugenol, which smells like cloves; and citral, which smells lemony.
- A tall, vigorous plant with light green leaves, small white flowers and an intense lemon aroma, it has been bred for greater genetic uniformity and higher content of the lemon-scented oil citral.
Definition of citral in:
- US English dictionary
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Coronation Weather, 1953
Worst June weather of the century?
by Philip Eden
Weatherwise, 2 June 1953 was an atrocious day in the middle of a lengthy spell of atrocious weather. May that year had been a superb month with weeks of warm sunshine interspersed with occasional thundery downpours. Eight days before Coronation Day, on the Whit Monday holiday, the temperature soared to 31.7°C in London and Surrey but there was a sudden and complete change in the weather the following day.
A cold front brought thunder-showers and a sharp drop in temperature on May 26, and from then until the middle of June the British Isles lay between high pressure over the Atlantic, usually located somewhere between Ireland and Iceland, and low pressure over the near-continent. As a result the country lay under a very cool and moist northerly airflow throughout this period. June 2 itself was a miserable, November-like day in London as far as the weather was concerned, with dull skies, a chill wind and sporadic outbreaks of rain during the morning, although it dried out gradually later on. The afternoon temperature climbed no higher than 12°C - several degrees lower than the Queen's wedding day in November six years before.
It could have been worse - other parts of England had torrential downpours that day and there were floods in Northumberland after 70mm of rain fell in short order. And the following day was even colder; the maximum on 3rd June in London was 11°C, in Birmingham it was just 8°C, and at Aberdeen only 7°C.
None of the 20th century's coronation days had been blessed with really good weather. George VI's, on May 12, 1937, was similarly cool and cloudy with rain during the first part of the morning and again in the evening; George V's, on June 22, 1911, was a disappointingly cloudy day with a chilly breeze although the rain held off; and Edward VII's, on August 9, 1902, was similarly cool and cloudy but dry with just a few fleeting flickers of sunlight.
Recalling the pictures of that procession down the Mall, I am also reminded of Noël Coward's response when asked who Queen Sarote of Tonga's companion was. "Her lunch", he said.


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Accident Reconstruction Biomechanics
Following an accident, a detailed analysis of the situation can be provided to clients to help them make informed decisions on what truly happened, and which scenario was most likely to have occurred. This can be done by one of Envista's biomechanical engineers, who have investigated numerous accidents and provided expert testimony for decades.
Examples of typical investigations include:
- Ladder incidents and falls
- Personal injury (trip and fall)
- Playground equipment failures
- Handicap accessible ramps or equipment incidents
Building code and industry standard requirements
Aside from the accident alone, other factors can come into play to complete an accident investigation, including building code and industry standard reviews. This is especially important for worker's comp or regulatory health and safety incidents. An Envista biomechanical engineer can evaluate:
- Building code requirements for stairs, railings, interior or exterior steps and doors
- Ladder testing that adheres to local standards (based on where the accident occurred, e.g. CSA, OSHA, etc.)
- Walking surfaces and floors to ensure they adhere to industry and local standards
Vehicle collision and personal injury
When addressing personal injuries, both medical and personal information will be required to help with our analysis. Our biomechanical engineer will analyze injury mechanisms, probable causation and seatbelt effectiveness no matter the speed of the vehicle.


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Python deployment automation helper functions built into leroy
Leroy's built-in python interpreter has some additional functions that we have added to it that are commonly used in deployment automation. The problem we are solving is that when creating automated deployments, it is not enough to simply stop and start services. We must also loop and check if services are in-fact started or stopped. This action causes redundant scripting. Leveraging the embedded python interpreter in each agent, building such functions were fairly easy to make. The functions we have created are as follows:
checkForPid and checkForNotPid are used when we know the PID of the service that we have started or killed and we want to know if it has in-fact started, or died.
checkPortListening and checkPortNotListening is when we know what TCP port a given service will be listening on and we want to confirm if it has in-fact started or stopped.
checkHttpString and checkHttpNotString are used when we start a service that presents some web / http type interface. With it, we can poll this url for an amount of time to check if a string or perhaps 1 of 2 strings exist in the web page. This is most commonly used in post-deployment checks to ensure that an application has completely deployed. A great way to take advantage of this is to develop a special url in your application that performs internal checks and produces a unique string on success.
checkRunningLogForStrings is a very special function that we welcome as a nice cross platform utility. This works like you are performing a "tail -f" on a running log and we stop when we see a special string. Certain JBoss applications would enjoy using such a mechanism for example.
In order to make use of any of these functions we need to import Leroy inside our workflow first, here's an example:

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