Melting snow creates flooding crisis across Scotland
UK Today News: As temperatures rose rapidly in Scotland on Friday, the melting snow caused some chaos in the region and created floods throughout the country. Many schools and offices which were shut down over the past week due to excessive snowfall, reopened yesterday, and so did roads and railway routes.
The sudden rise in the temperature to 20 degrees has resulted in damaged pipes, flooded roads had disrupted normal traffic on the roads. The access to the Edinburg airport was reportedly closed due to flooding and created chaos for those who were due to catch their flights.
Many streets in Scotland had been closed, after fears that falling snow would hurt someone passing on the street. On Thursday morning, water from a burst water pipe filled Glasgow's Saltmarket. The water had destroyed several computer systems and phones.
The temperature compared to last week was 20C warmer in some parts of Scotland.
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Home / Blog / Knowledge / What is a gully cover?
What is a gully cover?
Author: Site Editor Publish Time: 2020-12-10 Origin: Site
What is a gully cover?

The gully cover is usually a grating covering the drainage gully, which can quickly and directly drain water into the gully under the cover. There is no possibility of water accumulation. It is usually used in low-lying areas, on both sides of roads, indoor vegetable markets, car washes, parking basements, etc. Usually, the trench covers are used in batches and linear arrangements. The indoor drainage system uses this type of gully, which can reduce the cost of constructing an underground drainage system. And this type of gully can play a role in protecting the drainage system. The sewage in the gully under the gully cover can play a role in sedimentation and sedimentation, reducing the direct discharge of debris and sediment into the drainage system and causing blockage.

gully covers
How to choose a gully cover?

To observe the quality of a product, it is necessary to see whether its appearance is beautiful. If it has many bubbles and spots, the quality of the trench cover needs to be considered.

Trench covers gully cover are mainly used in some factories and high-end communities. This is mainly because the cement trench cover is often crushed and the road surface is also damaged. Therefore, the trench cover plate made of the glass-reinforced plastic composite is suitable for different loads. Because the trench cover is simple in construction, light in weight, good load-bearing, impact resistance, bend and not bend, large displacement, beautiful and durable, and anti-corrosion, it has the incomparable advantages of cast iron cover.

The drainage ditch cover is a kind of environmental engineering accessories, which is often used in road construction, and we can also see it on the road. There are many types of drainage ditch covers, and the materials used for the drainage ditch covers vary depending on the environment. So how to choose the gutter cover for different usage scenarios?
drainage ditch cover
Generally, steel gratings are generally used if they are only used for urban drainage and for people to walk on. The carrying capacity is strong, and some large and medium-sized vehicles can come and go. If a chemical plant or an area with frequent acid rain, if the metal is used, it will cause a chemical reaction, leading to tedious replacement and increasing maintenance costs. Compared with the metal ditch board, the glass drainage ditch cover is lighter in texture and saves time and effort in installation. The resin fiberglass fiber reinforced plastic produced by the new technology has a bearing capacity that is not inferior to that of metal and has strong corrosion resistance. It has played a great role in many chemical production and acid-base sewage discharge fields. There is also a reinforced concrete drainage ditch cover plate, which is made of concrete material, which has strong stability but is relatively heavy and difficult to repair once a problem occurs.

The dense drainage ditch is designed for crowded places. The dense drainage ditch cover is characterized by small gaps, which can allow some small and conventional objects to pass through without being stuck, and retain the drainage function.

Steel gratings can be seen in some swimming pool overflow drainage grating, but it doesn't feel very good to step on them with bare feet. It is not only very ice, but also not very skin-friendly. The composite swimming pool overflow drainage grating feels comfortable, and the thermal conductivity is not as good as steel. It will not feel very cold even in winter, nor does it have a sharp feeling of steel. And it gives people a comfortable, beautiful and high-end feeling.
Swimming Pool Overflow Drainage Grating
For the drainage ditch near some chemical plants, it is necessary to choose some acid and alkali corrosion resistant, lightweight composite structure, easy to replace and repair the drainage ditch, is a very ideal material.

What are the benefits of using trench cover in road engineering?
Trench cover is mainly used in road engineering. It is used more in municipal engineering, and most of it is used for drainage. Regarding some rainwater, or the terrain is more depressed, we will pass through the trench. The construction of the cover plate is used for urgent drainage to ensure the safety of life and material safety of the public.

The hole row of the trench cover should also be planned clearly. Try to save materials and resources: when large spans and heavy loads, the price is lower than cast iron; and it can save the cost of replacing cast iron covers due to theft or crushing.
How should I choose the load capacity of the gully cover?

Take the BS EN124 standard as an example，You can choose the required load-bearing range based on this standard.

BS EN124
Composite gully cover vs cement gully cover

The drainage gully cover made of cement material, due to frequent wind and sun over the years, the gap of the gully cover is prone to defects, which causes the gap of the gully cover to become wider, and human feet enter the gap of the drainage cover on the roadside, which is easy to cause Bruises on the legs. Due to the erosion of rainwater, the cement at the seam of the cover plate is very easy to fall off, which causes the seam to increase, which intensifies this hidden danger. Therefore, the use of cement cover is not recommended, because cement cover is almost the most frequently occurring quality problem among all common materials of drainage gully cover.

Composite gully cover vs metal gully cover

Metal drainage ditch covers are more common. Generally, ductile iron is generally used if it is only used for urban drainage and for people to walk on. Its carrying capacity is strong, and some large and medium-sized vehicles can come and go. However, if a chemical plant or an area with frequent acid rain is used, if the metal is used, it will cause a chemical reaction, leading to cumbersome replacement and increasing maintenance costs.

The resin composite drainage ditch cover plate is relatively lighter than the metal ditch plate, and the installation is also time-saving, labor-saving, and anti-aging. The composite trench cover is made of high-strength composite materials supplemented by steel bars and is molded at high temperature. It has no recycling value and realizes active anti-theft. It is not inferior to the load-bearing capacity of metals and has strong corrosion resistance. Production and acid-alkaline sewage discharge fields play a great role and are commonly found in many industries such as traffic auxiliary roads, sidewalks, real estate, communications, water affairs, chemicals, pipeline gas, and power supply systems.

Applications scenarios of gully cover

The drainage system in the park is relatively concealed. A linear drainage ditch is often used. A linear drainage ditch is a very popular way of park drainage. It is deeply loved by designers. The selected ditch cover can also be added with some ingenious Techniques and design lines to produce artistic effects. The design of the linear finished drainage ditch in the park has solved the function of the drainage ditch and more perfect greening of the park. The finished linear drainage effectively protects the ground and the service life of the building and integrated with the architecture.

The area of the park is generally larger and the design is deeper. After sedimentation, the drainage flows into the collection well and then is pumped by a submersible pump. However, it should be noted that the drainage system in the park must use the natural topography to determine the drainage direction and dig the drainage ditches according to the prescribed slope. The drainage system of the park shall be provided with continuous, unobstructed, and other emergency facilities to prevent mud, sewage, wastewater, etc. from flowing out or blocking the drainage ditch.

Nowadays, many people use special composite grilles for car washes shops. The advantage is that the ground can be completely grounded, and the ground does not have to worry about water storage. On the other hand, it is best to clean the sediment, but even if you don't need a special sediment pool, consider the water behind the entire ground, the sediment is under the grid.
gully cover used in car washes shops
It is easy to build the trough without digging, and the height is more than 10cm. General stores use glass fiber reinforced plastic grille size 38MM thick.
Install the grille, the grille requires beam support every 40cm, all the grille is vertical and the beam forms a vertical cross, using uniform force. Be sure to vertical beams and grilles, it is very important to avoid waste.
Installation selection considerations

The steel grating trench cover of the roadway is divided into side trench cover and transverse trench cover according to the direction of vehicle travel. The load-bearing flat steel perpendicular to the direction of the vehicle becomes a side trench cover, and the load-bearing flat steel parallel to the direction of the vehicle becomes a transverse trench cover.

For the sidewalks, roadways, steel gratings of parking lots, ditch covers on the ground of docks, or buildings used on traffic roads, the design, and selection of them should be taken into consideration due to the difference in load and direction of traffic.

When it is used for the gutter and cross-section gutter cover on the road (the direction of the vehicle is parallel to the direction of the load-bearing flat steel), not only the wheel pressure and impact must be considered, but also the danger of the gutter cover from bounce and displacement must be taken into consideration. The plate is fixed to the angle steel and the support beam (can be fixed by welding or steel grating mounting clips).

Advantage of trench covers

The anti-theft performance is better


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After speaking with a local church pastor who's very committed to reaching out to a college close to his two churches, we've compiled the following. Please feel free to share your questions/comments.
Find the Adventist Students
- It's a good idea to connect to the campus with/via the students you already know there.
- If you haven't already found Adventist students on the campus.
- Ask your local church if they know of any
- Ask the school if they have a list of those who have self-identified as Adventist and if you can have that list
- Once you find the students, begin building community with them.
- Invite them over for Sabbath dinner or to your church potluck
- Invite them over for a game night
- Celebrate their birthdays
- Check on them during exam time
- Send them care packages
- Ask the students what the needs of their campus are and how your church can best meet them.
- Specific prayer requests
- Joining a fundraiser for a community charity (Tim Kerin Fund Drive at UT)
- Helping with a student's tuition
- Providing food for a student family that's struggling to make ends meet
- Encourage the students to create a formal ACF chapter on their campus.
- See ACF-GCC brochure or website for more on starting a chapter
If You Can't Find the Adventist Students…
(It may be hard to find them so here's what you can do.)
- Find out if there are other religious entities on the campus.
- If there are, call them up and/or visit them and ask what sorts of things they do for the students. (They are typically very willing to share their ministry ideas especially since many recognize that each religious entity is mostly reaching its own students—they won't be threatened by your ministry.)
- See if they are part of a larger campus ministry organization such as a "Campus Ministers Council," an entity that connects all of the campus ministers.
- This organization can give you much more information about how the campus relates to religious organizations.
- Get in touch with the school's "Student Life" department. It may be called "Office of Dean of Students," "Student Affairs," or something else. It's typically the department that is over student organizations.
- Ask Student Life what its policies are for outside entities connecting with the students.
- Be prepared to share ideas of how you'd like to connect:
- Monthly meals to students (served on campus)
- A weekly ESL program at your church
- Developing a worthy student fund
- Weekend childcare for students who are single parents
- Know the gifts of your church members and use those to brainstorm ideas for connecting with the campus.
- See if you're at least allowed to post flyers for upcoming events.
Remember to begin and end with prayers of faith.
Believe that God will help you do your part.

source: openbmb/Ultra-FineWeb


The motivation behind the world's fastest electric ice cream van
What motivates an inventor and entrepreneur to design the world's fastest ice cream van? Edd China, a British inventor and TV presenter from Surrey, has broken the Guinness World Record by creating an ice-cream that clocked up speeds of 73.921 mph. Although he doesn't sell ice-cream for a living, he is on a mission to decrease carbon emissions and demonstrate that businesses aren't negatively impacted by embracing electric vehicle technology.
This is Edd's seventh Guinness World Record title centred around speedy motorised vehicles, but the project was never about just breaking records. After Edd discovered that ice cream vans were being banned in some London boroughs due to their harmful emissions, he decided to create a special engine conversion kit that can run on electricity rather than diesel. He hopes to roll it out as a business, and in doing so, to future-proof ice cream vans as a key part of the British summer.
The van originally ran on a Mercedes Sprinter diesel engine. After two years of modifications the record was broken at Elvington Airfield in Yorkshire with a speed which would have warranted a speeding ticket on a motorway.
What's next for the inventor? He has his sights set on breaking the record for the fastest motorized shopping trolley currently held at 70.4 mph and to make it street legal.
Other notable records involving automobiles include:
The longest journey by a coffee-powered car
In 2010, a Volkswagon Scirocco was driven 337 km from London to Manchester powered by coffee. The modified car works by heating coffee granules in a charcoal fire, which break down into carbon monoxide and hydrogen. 'Car-puccino' can reportedly reach 60 mph and achieved 1 mile per 56 espressos. The process works because coffee granules contain a small amount of carbon.
The fastest police car in service
To help them keep up with rich businessmen in their speeding sports cars, police in Dubai decided to invest in one of the most powerful production cars on the planet: a Bugatti Veyron. With a blistering top speed of 253 mph and a US$1.6 million price tag, the Dubai police parked the Veyron alongside a Lamborghini Aventador that they already owned. The Veyron, however, was renowned in 2016 as the second fastest street-legal car in the world, only pipped by the 301 mph Hennessey Venom GT.
Guinness World Records 2021 book has just been released.


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It is hardly to believe that Russia has its own Indian tribes but that fact is true. There is a population of about 1500 people who are originally Indians who live in Kamchatka peninsula. They are some kind of mix between Indians and Eskimos. They are called Itelmens. Some scientific studies have revealed that Itelmens are related to a Tlingit tribe in Alaska and they also have some common customs and tradition.
Itelmens are not only indigenous tribe which lives in Russia but they are considered as most authentic one. Their community of about 1500 people is better educated than the other indigenous communities but their life still remains pretty primitive. Here you are watching a photos of an exhibition in a Moscow based photo centers which was made in order to improve the knowledge about existence of Indian culture on Russian soil.

source: HuggingFaceFW/fineweb-edu


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The decay of field-free rotational dynamics is experimentally studied in two complementary methods: laser-induced molecular alignment and terahertz-field-induced molecular orientation. Comparison between the decay rates of different molecular species at various gas pressures reveals that oriented molecular ensembles decay faster than aligned ensembles. The discrepancy in decay rates is attributed to the coherent radiation emitted by the transiently oriented ensembles and is absent from aligned molecules. The experimental results reveal the dramatic contribution of coherent radiative emission to the observed decay of rotational dynamics and underline a general phenomenon expected whenever field-free coherent dipole oscillations are induced.
Saturday, May 13, 2017
Abstract-Coherent radiative decay of molecular rotations: a comparative study of terahertz-oriented versus optically aligned molecular ensembles
(Submitted on 9 May 2017)

source: m-a-p/FineFineWeb


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Si and Ge are widely used as analyzing crystals for x-rays. Drastic and accurate shaping of Si or Ge gives significant advance in the x-ray field, although covalently bonded Si or Ge crystals have long been believed to be not deformable to various shapes. Recently, we developed a deformation technique for obtaining strongly and accurately shaped Si or Ge wafers of high crystal quality, and the use of the deformed wafer made it possible to produce fine-focused x-rays. In the present study, we prepared a cylindrical Ge wafer with a radius of curvature of 50 mm, and acquired fluorescent x-rays simultaneously from four elements by combining the cylindrical Ge wafer with a position-sensitive detector. The energy resolution of the x-ray fluorescence spectrum was as good as that obtained using a flat single crystal, and its gain was over 100. The demonstration of the simultaneous acquisition of high-resolution x-ray fluorescence spectra indicated various possibilities of x-ray spectrometry, such as one-shot x-ray spectroscopy and highly efficient wave-dispersive x-ray spectrometers.
ASJC Scopus subject areas


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Computer Engineering | Robotics
In this paper we evaluate the use of a novel spatial histogram called the terrain spatiogram as a common representation for exchanging landmark information between robots working as a team to map an area. Individual robots use range sensors to provide the spatial dimension of the spatiogram and video for the image dimension. We have previously shown that terrain spatiograms can be shared between robots in a heterogeneous team to recognize landmarks and to fuse observations from multiple sensors or multiple platforms. A terrain spatiogram using a mixture of Gaussians (MOG) model is introduced and a corresponding normalized spatiogram similarity measure defined. Two methods to generate a MOG terrain spatiogram are presented and compared experimentally using indoor and outdoor landmark information transferred between two different models of robot equipped with differently configured stereocameras.
Lyons, Damian M., "Sharing Landmark Information using Mixture of Gaussian Terrain Spatiograms" (2009). Faculty Publications. 18.


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3D Logo Reveals Preview Clips
Here are a series of videos showing the kinds of logo reveals we can produce for your organization.
Each of the videos shown here displays several of the video reveal formats that we produce. You can view the individual reveals on these pages as well: 3D ANIMATED LOGO REVEALS, PAGE 1 and 3D ANIMATED LOGO REVEALS, PAGE 2
3D Logo Reveals Volume 1
3D Logo Reveals Volume 2
3D Logo Reveals Volume 3
3D Logo Reveals Volume 4
3D Logo Reveals Volume 5
3D Logo Reveals Volume 6
3D Logo Reveals Volume 7
3D Logo Reveals Volume 8
3D Logo Reveals Volume 9
3D Logo Volume 10
3D Logo Volume 11
3D Logo Reveals Volume 12
3D Logo Reveal Volume 13
3D Logo Reveal Volume 14
Create an Animated Logo Reveal That Grabs Attention and Makes the Right Impression. Only $97
Modifications That Can be Made to the Logo Reveals Shown Here.
- Logo Image - Logo images must be in a transparent PNG format. We used a generic square logo for AB&C company to illustrate how logos are presented in the different reveals. Some of the logo reveal effects allow us to increase or decrease the size of the logo image after it is revealed.
- Audio - sound effects can be added to all of the clips. The demo clips do not have audio.
- Speed - The speed can be increased or decreased as needed.
- Length - The length of all of the reveals can be modified by extending the time at the end of the clip, after the display action has come to a stop. We can shorten videos by removing content at the beginning of the clip.
- Colors - The colors of the elements in the reveal can be modified on all of the reveals shown here.
- Text - Some reveals require text where it is indicated in the demo reveal (Text 1, Text 2 etc.) When used, text elements should be very short.
- Additional Images - Some reveal formats include additional images. Images can be added where you see image placeholders, or photos of people, animals, outdoor scenes or coffee related images. Images must be in specific dimensions to display properly in the image slots.
3 Big Reasons To Use Animated Logos
A Dozen Ways You Can Use Your Animated Logo
Contact us at _PHONE_ or via the form below.
- Animated Video Production
- Customizable Promotional Videos
- Video Ad Production
- Video Promotion
Applied Marketing Group
7247 W Colt Drive
Boise, ID 83709


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Glossary Term – Person
Andrew Carnegie opened America's largest steel plant in 1875 near Pittsburgh, Pennsylvania. An industrialist born in Scotland, Carnegie was a self-made man who had worked in textiles and railroads as a young man. Carnegie made a fortune in the steel industry but also made a name for himself as a philanthropist. In 1889, he published "The Gospel of Wealth," an essay extolling the benefits of wealth as well as the responsibilities of the wealthy to the public.


seals of yeovil borough
Common seals of Yeovil
Examples of Portreeve's Seal 1815 and Borough Seal 1877
Yeovil was officially designated as a Borough in 1854 and at left is an example of the Seal of the Borough of Yeovil used by the Corporation. It is from a document in my collection dated 1877 and is based on the original fourteenth century town seal used by the town's Lord and his Portreeve.
The main shield depicts Saint John the Baptist, standing beneath an arch with trees either side. He is holding a shield with a representation of the Agnus Dei, the Lamb of God.
The seal is a device for making an impression in wax, or other medium, and is also the impression thus made. The purpose was to authenticate the document.
The sealing process is essentially that of a mould, with the final image represented on the device for making the impression by a mirror-image design, incised in sunken relief, or intaglio. The seal-making device is also referred to as the seal matrix or die; the imprint it creates as the seal impression.
The seal impression in this photograph measures three inches (75mm) across and is reproduced here almost actual size (depending on your screen resolution). Impressed into red candle wax, it was placed on a bright green silk square attached to the vellum (calfskin) document.
The Portreeve's Seal photographed below, is from a document of 1815.
From my collection


How to help support sales at natural retail
How to help support sales at natural retail
The great equalizer between smaller and more sophisticated CPG companies, true category management can differentiate any brand in today's highly competitive environment. Category managers can and should support sales within their retailer partners, and there are some different approaches to consider in doing so, some of which may prove more effective than others.
Retail sales support
Most natural companies rely on relationship selling. This can be extremely effective if you have good rapport with your buyers. Decisions are based primarily on emotion and gut as opposed to facts. This can also create an opportunity for sales people armed with solutions to help retailers compete more effectively. The challenge, then, comes from dealing with new buyers, strong competitive threats from more sophisticated brands and mainstream retailers who expect more support from their brands. The old way of selling is not as effective as it once was.
Another hurdle is that most companies tend to focus their message on what's important to them—their product's value from their perspective. Unfortunately, few take the time to educate their retail customers and help build the message around their needs: satisfying customers while making a profit. Retailers want support and guidance from their manufacturer partners.
Just the facts
Fact-based selling also relies on relationships but is bolstered by solid facts, such as additional information that supports the benefit to the consumer as well as to the retailer—the heart of any category management based strategy. This can include the brand's commitment and plan to support the retailer, the market, the category, consumer insights, the potential sales for the item, schematic recommendations, etc.
Fact-based selling with category management answers the questions:
 - How does the product meet consumer needs?
 - How can the product drive foot traffic to the retailer?
 - How can the product give the retailer a competitive advantage in their market?
In answering these questions, always keep in mind the five Ps of selling: product, placement, people, pricing and promotion.
Armed with this information, your sales team will be empowered to help retailers grow in the respective categories.
What strategies differentiate your sales team from the competition?
Hide comments
Plain text
 - No HTML tags allowed.
 - Lines and paragraphs break automatically.


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Some push factors that causing Labor turnover In Private University Education in Iraq -A case study for a number of private colleges
2020, Volume 39, Issue 126, Pages 111-131
AbstractThe faculty member is considered an essential axis in the success of the private university education.. In view of the high turnover rate in the private university education sector in Iraq, as it reached nearly 40% in some colleges, which makes it a phenomenon that must be studied by researchers. Accordingly, the research aims to find out what are the reasons that push the faculty member in private university education to leave his job and move to another place, which is called push factors. The researcher followed the descriptive approach in collecting theoretical information and the survey and analysis approach in collecting field data using a questionnaire that included, in addition to personal information, questions for thirteen reasons that could be cause of labor turnover send to those who left the work( Post Exit) in a sample of private colleges through Personal interview or by sending it via electronic means of communication. The data was analyzed using the statistical program SPSS version 24.The research found that the thirteen reasons were statistically significant as a reason for labor turnover, the most important of which is the lack of security and job stability in private university education. The research also presented a set of recommendations that can contribute to reducing the phenomenon of labor turnover for faculty members in private university education in Iraq.
- Article View: 40
- PDF Download: 69


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Board member - Friends of the Earth
Volunteer status: No salary, reasonable travel expenses covered
Duration: initially 3 years – expected commitment of four board meetings per year plus annual away days
Location: Northern Ireland – usually 3 meetings are held in London and 2 outside London
As we strive to protect the environment and tackle the climate emergency at this critical time, we are seeking to appoint a Board member based in Northern Ireland to join the Friends of the Earth Board.
About Friends of the Earth
Friends of the Earth is a global environmental movement standing with anyone who cares about the world we live in. We work with local groups, experts, business leaders and politicians to campaign for change on a wide range of environmental issues. Over the course of Friends of the Earth's history, we have been at the forefront of exciting and crucial campaigns, from pioneering recycling in the 1980s to challenging road building in the 1990s, and more recently to standing up against fracking and plastic pollution. Our new campaigns are directed towards achieving urgent climate action in order to prevent catastrophic damage to our planet. Our organisational strategy highlights that, in order to do this, we must support and enable a wide range of communities across England, Wales and Northern Ireland. We are therefore looking to appoint someone with a strong understanding of Northern Ireland to complement existing board members based in England and Wales.
About the role
Sharing responsibility with other Board members, this role involves scrutiny of our strategy and its delivery. It includes overseeing the organisation in making a long-term, sustainable impact on the environment and helping ensure that a perspective from Northern Ireland is held within our governance structure. We are particularly interested in individuals who have expertise in senior leadership and/or financial experience.
The role involves the following key areas, working with fellow Board members under the direction of the Chair:
- Supporting and guiding the mission and values of Friends of the Earth
- Providing strategic direction and advice for the organisation
- Fulfilling legal responsibilities as a director under company law
- Fundraising, financial management and compliance
- Assessing risks and mitigating actions
- Supporting and constructively challenging our senior leadership team
Key skills and attributes
The key attributes for this role are:
- Strong interest in and commitment to Friends of the Earth's values and environmental goals
- Understanding of the socio-political landscape in Northern Ireland
- Based in Northern Ireland
The ideal candidate would hold some of or a combination of the following skills and experiences:
- Financial experience, including accountancy or a similar qualification
- Experience at the senior management level of organisational effectiveness and delivery in a large organisation (whether public, private or third sector)
- Governance / Board experience of medium to large organisations
- Experience of people management / human resources
- Understanding or experience of environmental protection in Northern Ireland
- Involvement with community action
Being a member of the Friends of the Earth Board is a highly rewarding experience and you'll play a vitally important role.
If you feel you have the skills required to add value to the Board and to help Friends of the Earth achieve its environmental objectives, then we invite you to send your CV, along with a supporting statement explaining how you could make a difference, to _EMAIL_
Applications will be reviewed up submission.
If invited to interview, we are happy to reimburse travel expenses.
Friends of the Earth is an equal opportunities employer and we welcome applications from all suitably qualified persons. We are keen to encourage applications from people currently under represented in the environment movement and on our Board, including BAME, disabled people and LGBTQI+ people.


Question: What Does Magnum Mean?
What is the difference between a magnum and regular bullet?
Magnum Ammo: The Gist It's specific because a "magnum" cartridge will contain more propellant (aka gunpowder) and/or a more generous projectile (aka bullet) than a standard cartridge..
Will a 357 magnum kill a grizzly bear?
For a bear cartridge anything equal to or more powerful than a. 41 Magnum or. 44 Magnum will be fine. … 357 Magnum or other similar-caliber load, a well-placed shot with a good bullet will certainly kill a bear, but it's not recommended.
How do you use magnum opus in a sentence?
Examples of magnum opusRamstedt's posthumous (1952, 1957, 1966) magnum opus was a mixed blessing.He had to be told to come here to attend the first performance of his magnum opus—his lifetime's work on the market economy. … Lambert considered the work his magnum opus, and it is his largest work in any genre.More items…•
What is an artist's greatest work called?
Masterpiece, magnum opus (Latin, great work) or chef-d'œuvre (French, master of work, plural chefs-d'œuvre) in modern use is a creation that has been given much critical praise, especially one that is considered the greatest work of a person's career or to a work of outstanding creativity, skill, profundity, or …
Is magnum opus italicized?
If you use the word "magnum opus" in a sentence, you should italicize it because… … Read this sentence: A Canis familiaris is a dog.
What does the name Magnum mean?
Big, GreatThe name Magnum means Big, Great and is of Latin origin.
Why is a magnum so powerful?
The caliber is so powerful because it uses 3 to 4 times the gunpowder used in a 45ACP; while the projectile size remains approximately the same. This more than doubles the muzzle velocity and muzzle energy of the bullet.
What does magnum opus mean in English?
: a great work especially : the greatest achievement of an artist or writer.
What is magnum opus in literature?
magnum opus A great work, especially a literary or artistic masterpiece. 2. The greatest single work of an artist, writer, or composer.
What is the deadliest pistol?
Glock 18Did You Know the Glock 18 Is the Deadliest Gun In the World? Hear us out. Key Point: 1,200 rounds a minute is a lot of bullets.
Can a gun fire underwater?
'Guns work underwater the same way they work above water', according to. The casing of a bullet is waterproof and the firing pin collides with it causing the gun to fire. … Traveling through water, a bullet will barely hit 2 meters, which is because water is 800 times denser than air.
What does a Magnum gun mean?
A magnum cartridge is a firearms cartridge with a larger case size than, or derived from, a similar cartridge of the same bullet caliber and case shoulder shape. A magnum firearm is one using such a magnum cartridge. … List of rifle cartridges. List of Magnum pistol cartridges.


Marengo, IA
Sponsored Topics
Marengo's longitude and latitude coordinates
in decimal form are 41.797227, -92.069550.
According to the United States Census Bureau, the city has a total area of 2.2 square miles (5.6 km²), of which, 2.1 square miles (5.4 km²) of it is land and 0.1 square miles (0.2 km²) of it (2.78%) is water.


The story of York Barbell all begins with one man, Bob Hoffman. Hoffman first began lifting and making weights in his oil burner factory in York, PA in 1929. The athletic club at that factory quickly took up weightlifting until eventually it would be the main staple of the club. The name was then changed to the York Barbell Club and attracted musclemen from all over the world into the little town of York.
During the 1932 Olympic Games the United States showed an extremely poor performance in weightlifting. Shortly after this Hoffman began promoting weightlifting heavily and began publishing his own magazine on the topic. From this effort stemmed new interest in the sport and the first US victory in weightlifting since 1904 in the 1936 Olympic Games. The winner, it just so happened, was a member of the York Barbell Club.
Two years later Hoffman sold off his interest in the oil burner company and in 1938 York Barbells began its concentration on weightlifting equipment. The interest caused by this company is part of the reason that by the late 40's York was known as "Muscletown."
After over a half-century York Barbell is still the industry standard in weights. The York name appears on more barbells than any other name in the world and is currently the only Olympic certified United States based manufacturer of weights.


text: A Croatian legend is that the Croatian king Suronja beat the Venetian doge in a chess game for a number of Croatian islands. The Croatian coat of arms was supposed to have been evolved from the chess board of 64 squares. The first written trace of chess in Croatia dates to 1385. A Croatian merchant had an inventory of a small table and a chess set. Correspondence chess was being played between Croatian and Venetian merchants as early as 1650. The first Croatian chess column appeared in 1875. The first chess tournament was played in Zagreb in 1886. The first Croation chess club was founded on March 11, 1886. The first chess book published in Croatia occurred in 1893. The first book in Croatian was published in 1909.The Croatian Chess Federation was formed in 1912.


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Irrigation equipment: Don't be shocked
The use of farm irrigation systems brings with it an increased risk of electrocution. Safe Electricity, a public awareness campaign created by the Urbana, IL-based Energy Education Council, urges workers to know and follow proper safety precautions to avoid electrical injuries when operating and handling watering systems.
Follow these rules to safely operate irrigation machinery systems:
- Make sure the irrigation system wiring is properly grounded. Have a qualified electrician check the pump and motor wiring before each irrigation season.
- Water and metal are ideal electrical conductors. Position irrigation pipes at least 15 feet from power lines. Keep water jet streams from spraying onto electrical lines.
- When not in use, store irrigation pipes in an open area away from power lines and other electrical equipment.
- Install lightning arresters to protect equipment, and stay away from the machine during any lightning activity. The pipe pedestals in an open field make perfect lightning receptors, and the water-filled piping can carry an electrical current for long distances.
- When assembling or transporting irrigation equipment, try to keep pipes parallel to the ground and move them horizontally rather than vertically to avoid contact with overhead power lines.
- Repeated circuit breaker trips or blown fuses during operation could indicate a serious electrical hazard and should be professionally checked and corrected.
- When servicing the machine, always shut off and lock out the master electric control switch.


text: The BRDF (Bidirectional Reflectance Distribution Function) of vegetation canopies exhibits an anisotropic behaviour that is related to illumination and viewing geometries. However, some other aspects such as the optical properties and the structural parameters of the targets should be taken into account for an adequate explanation of the bidirectional phenomenon. The present investigation examines the anisotropic behaviour of the homogeneous canopies reflectance from laboratory data as a function of viewing geometry, structural parameters and optical properties of the samples in order to obtain relevant information to improve biophysical parameters retrieval and discrimination of vegetation canopies from optical spectral data. Airborne data acquired in Daisex-99 campaign over Barrax test site (Albacete/Spain) with the HyMap instrument are also included. The HyMap concept is able to record hot spot effect, and moreover, the different flight tracks carried out in Daisex-99 allow us to complete anisotropic behaviour shown in laboratory experience, where illumination was fixed, with airborne data acquired under different solar zenith angle. Results confirm initial hypothesis that anisotropy reflectance is related to structural parameters of the vegetation and show anisotropic behaviour usefulness to study vegetation canopies increasing data dimensionality, varying both illumination and view angles. The anisotropy factor, ANIF, has resulted a simple relationship to provide us with relevant information about vegetation canopies structure. Keywords- Vegetation Canopies, Anisotropy, Reflectance, Hot Spot, Hymap.


What is Normal Oil Temperature
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The normal oil temperature for a car is typically between 195 and 220 degrees Fahrenheit. If the oil temperature gets too high, it can start to break down and cause engine damage.
Normal oil temperature varies depending on the make and model of your car. However, most mechanics agree that normal operating temperature for most cars is between 195 and 220 degrees Fahrenheit. If your car's oil temperature exceeds this range, it is considered overheated and you should take steps to cool it down.
What Should My Oil Temp Gauge Read?
Most people believe that their oil temperature should read between 160-180 degrees F when they are driving. However, this is not always the case. Depending on the type of vehicle you have, your oil temp gauge may read differently.
For example, if you have a newer car with a synthetic oil, your oil temp gauge may read higher than 160-180 degrees F. This is because synthetic oils have a higher boiling point and can withstand higher temperatures before breaking down.
What is the Average Oil Temperature?
The average oil temperature is typically between 180-200 degrees Fahrenheit. However, this can vary depending on the specific oil being used and the operating conditions of the engine. It is important to check your owner's manual or consult with a professional to determine the ideal oil temperature for your particular engine.
What Is A Safe Engine Oil Temperature?
What is Normal Engine Oil Temperature in Celsius
Assuming you would like a blog post discussing what is considered a normal engine oil temperature: Most engines are designed to operate within a specific temperature range, and your engine oil plays a key role in maintaining these temperatures. While the ideal operating temperature for your engine will vary depending on the make and model, most fall within a range of 190-220 degrees Fahrenheit (88-104 degrees Celsius).
During colder weather, it's not uncommon for your engine oil to struggle to reach its ideal operating temperature. This is due to the fact that thicker oils are more viscous and take longer to circulate throughout your engine. However, once your oil warms up it should be able to maintain the desired temperature range relatively easily.
If you notice that your engine oil frequently struggles to reach or maintain its ideal operating temperature, it could be an indication of a larger problem. Make sure to have your car checked out by a professional to diagnose any potential issues.
Normal Engine Oil Temperature Fahrenheit
As anyone who's driven a car knows, the engine is the heart of the vehicle. It needs to be well-maintained in order to keep the car running smoothly and efficiently. Part of maintaining your engine includes knowing what the ideal operating temperature is for your specific make and model.
For most engines, the normal operating temperature is between 195-225 degrees Fahrenheit. Of course, this can vary slightly depending on the outside temperature and how hard the engine is working. If you're driving in hot weather or pulling a heavy load, your engine will likely run a little hotter than usual.
Conversely, if it's cold out or you're just puttering around town, your engine will probably run a bit cooler than its ideal temp. It's important to keep an eye on your engine's temperature gauge (usually located on the dashboard) and make sure it stays within the normal range. If it starts to creep into the red zone, that means your engine is overheating and you need to take action immediately!
Pull over to a safe spot, turn off the engine, and call for roadside assistance. Trying to drive with an overheated engine can do serious damage and may even cause it to seize up completely. So there you have it – now you know what normal oil temperatures are for most engines and how to tell if yours is running too hot.
Keep an eye on that gauge and happy motoring!
Normal Oil Temperature Vw
If you own a VW, it's important to know what the normal oil temperature range is for your vehicle. Depending on the model of VW, this can range from about 195-degrees Fahrenheit to 205-degrees Fahrenheit. If you notice that your oil temperature is consistently outside of this range, it's important to have your vehicle checked out by a professional as soon as possible.
Car Oil Temperature 100 Degrees
If your car's oil temperature is 100 degrees, it means that the oil is too hot and needs to be cooled down. This can happen for a number of reasons, such as if the engine is running too hot or if the car has been driven hard for an extended period of time. If you see this warning light on your dashboard, it's important to pull over and let the car cool down before continuing to drive.
Conclusion
Motor oil has a range of temperatures it should operate within, depending on its grade and viscosity. For most passenger vehicles, the normal oil temperature range is between 195 to 220 degrees Fahrenheit. However, synthetic motor oils can withstand higher temperatures than traditional motor oils.
It's important to keep an eye on your vehicle's oil temperature to ensure it's running properly and not overworking the engine.
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General Lecture by Prof Keshav Dahal at SCU on AI applications to Power Engineering Problems
The speaker first introduced the eACCESS project activities and the AVCN research institute at UWS. The lecture discussed the importance of artificial intelligence (AI) in power systems. and the concept of AI and its potential applications in the power grid. The challenges of planning and scheduling in power systems, and how AI can be used to address these challenges were discussed. The talk concluded with a discussion of the future of AI in power systems, and how it can help to create a more reliable and efficient grid.
Specific points covered in the talk:
Introduction to artificial intelligence (AI)
Applications of AI in power systems
Challenges of planning and scheduling in power systems
How AI can address the challenges of planning and scheduling
The future of AI in power systems
The lecture was attended by about 80 people, they include SCU students, SCU staff, invited people from other universities, industries and some media people. The lecture and post interviews were covered by national and local medias.


text:
1. In a Terminal window in your 4_combine directory, copy the input files that you have created while working on the previous sections, using the following commands:
cp../1_build_cg_model/cg_monomer.pdb.
cp../1_build_cg_model/cg_monomer-2.pdb.
cp../1_build_cg_model/cg_monomer.top.
cp../3_cg_membrane/mixture.pdb.
cp../3_cg_membrane/lipid-ion.top.
The last input files needed is a pdb of ions, ions.pdb, which is located at your current directory 4_combine/example-input.
2. Start VMD and in the VMD Tk Console window, type the following command:
This command calls the script build.tcl, which will replicate six copies of BAR domain dimers and combine the BAR domains, lipids and ions together.
3. The output of the script build.tcl will be a psf file (6bar.psf) and a pdb file 6bar.pdb containing six BAR domain dimers on top of a membrane patch, neutralized by ions.
4. Take a look at the build.tcl.
This script contains the following steps: (1) Load the two monomers of a BAR domain dimer. (2) Move the monomers to appropriate locations, to form a lattice. (3) Call VMD plugin psfgen and input SBCG topology files for BAR domains, lipids and ions. (4) Input coordinates of the six BAR domain dimers, lipid membrane, and ions. (5) Generate psf and pdb files for the combined system. More detailed descriptions of the commands are included in build.tcl as comments beginning with ''#''. You can view the commands and comments in build.tcl using any text editor, or, e.g., using ls command in the VMD Tk Console.
5. Load the output system into VMD using the following command in the Tk Console:
mol load psf 6bar.psf pdb 6bar.pdb
6. Measure the center and dimension of the system by following commands:
set sel [atomselect top all]
measure center $sel
measure minmax $sel
Record the above values for use in the next section.


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How to warm up your singing voice
9 Best Vocal Warm-Ups for Singers
Professional singers know how physically demanding singing can be. It takes a lot of stamina and energy to sing onstage and bring the venue to life. That's why singing, like any other physical activity, should involve a warm-up, as well as a vocal cool-down. At School of Rock, we make these vocal warm-ups a ritual, whether it's to prepare for a singing lesson or a show rehearsal. These quick singing warm-ups can be done in just 10 to 20 minutes, and they should become an integral part of any successful practice routine.
Why do you need to warm up your voice?
We warm up our voices so we can keep them healthy, sound our best and protect against damage. Warming up your voice will allow you to sing better and extend your range comfortably. It is absolutely necessary to always warm up before singing.
9 best vocal warm-ups for singers
There are many simple vocal exercises you can use to warm up your voice, so you have a lot of options when it comes to deciding how to warm up your voice. Fortunately, School of Rock can help you narrow them down. Here are nine of the best vocal warm-ups used by our vocal instructors.
9 best vocal warm ups from School of Rock
1. Yawn-sigh Technique
For this quick vocal exercise, simply yawn (take in air) with your mouth closed. Then, exhale through your nose as if you are sighing. This will help relax your voice and improve its range.
2. Humming warm-upS
Humming is one of the best vocal warm-ups because it doesn't put a lot of strain on your vocal cords. Place the tip of your tongue behind your bottom front teeth and hum up and down the major scale while keeping your mouth closed. Each note should sound like "hmmm" — including the "h" sound is less taxing on your voice.
3. Vocal Straw Exercise
To perform the vocal straw exercise (also known as straw phonation), take a straw and hum through it. Start at the bottom of your range and slide up to the top slowly and evenly. Then, hum your favorite song through the straw. You can also place the straw in a partially full glass of liquid and blow controlled bubbles in the glass.
4. Lip buzz Vocal warm-up
As far as vocal warm-ups go, lip buzz (or lip trill, as it is sometimes called) is very simple. The goal is to make a motorboat sound by making your lips vibrate as you blow air through your mouth and nose. You can incorporate pitch slides as well.
5. Tongue trill exercise
The tongue trill vocal exercise is difficult for some singers. It involves curling your tongue and rolling your R's as you go through your range from low to high.
6. Jaw Loosening ExerciseS
When singing, you want to drop your jaw lower than when you are just talking. With your finger, trace back along your jawline from your chin to your ear. That curved space between your jaw and your ear is where you want to drop your jaw.
Pretend you are yawning with your mouth closed and feel where your jaw drops. Avoid just dropping your chin.
7. Two-octave pitch glide Warm-Up
For this easy vocal warm-up, make an "eeee" or "ohhhh" sound and gradually glide through the chromatic notes of a two-octave range. Glide up and then back down. This will transition from your chest voice to your head voice.
8. Vocal Sirens Exercise
Much like the pitch glide, the siren exercise takes an "oooo" sound and gradually goes from the lowest note of your range to the highest and back down, like a siren for an emergency vehicle. The sound is continuous and covers the tones between the notes.
9. Vocal Slides Technique
This technique is also known as a portamento, which is Italian for "the act of carrying." Much like the siren exercise, you slide from one note to the next in your range, but you don't sing the in-between notes.
Now that you've mastered a few vocal warm-ups and exercises, always remember to maintain good posture and use proper breathing techniques. Two common breathing techniques are singing from your diaphragm and exhaling on a hiss. Keep reading to learn how you can perform these to improve your singing.
1. Sing from Your Diaphragm
When singing, it is vitally important to use proper breathing techniques to avoid hurting your voice. It is most common to breathe from the chest during everyday activities, including speaking, but singing requires breathing from the diaphragm. Proper breathing gives your voice more power, more control and a fuller, more expressive tone. Sing from your diaphragm to avoid straining your voice. Your body should be relaxed and balanced, with your weight slightly forward.
What is your diaphragm?
The diaphragm is a muscle between your chest and your belly that governs how much air you inhale and exhale when you breathe. "Singing from your diaphragm" is a phrase for this important breathing technique, which describes the proper way to breathe in and out while singing.
How to sing with your diaphragm
The sound of your voice doesn't actually come from your diaphragm, of course — sound is generated by vibrations of your vocal cords. The vibrations are caused by air being pushed out of your lungs. Your diaphragm is what controls the pushing and is responsible for putting power behind your voice.
2. Exhale on a hiss
A hissing breath exercise is a great way to start when learning how to warm up your voice before singing. This technique forces vocalists to sing from their diaphragms and improves breath control.
To master the exhale on a hiss breathing technique, it's important to:
 1. Stand up straight and relax your body. This will also relax your diaphragm and release any tension that could prevent you from singing incorrectly.
 2. Breathe in through your mouth and count to five. As you breathe, bring the air deep into your lungs. A "singer's breath" should not make your chest puff out or your shoulders rise — instead, your belly should expand outward.
 3. Exhale and count to nine. While exhaling, make a hissing noise that sounds like the first letter of the word "sizzle." By the time you are done counting, all the air should be expelled from your lungs.
Once you build more lung capacity and get comfortable with this exercise, you can breathe in for a seven count and exhale for a 12 count.
Now that you've warmed up your voice and know how to breathe from your diaphragm and exhale on a hiss, you're ready to sing.
How to cool down your voice after singing
After vocal warm-ups and singing, it is essential that you also cool down your voice. You can use the same vocal exercises you used during your warm-up, starting with the most intense and working down to the least intense. Simply using the humming vocal exercise will also allow your voice to cool down and relax. Following these tips will keep your voice strong and allow you to perform at your best.
Vocal warm-ups are a critical part of any singer's practice and performance routine. These quick and easy vocal warm-ups will refine your technique, build your vocal power and control, and help expand your vocal range.
At School of Rock, our trained vocal instructors teach students all aspects of singing, including warm-ups and other vocal techniques that thousands of professional singers use every day to keep their voices in shape and sounding their best. Ready to start singing? Sign up for a singing lesson now, or read more about our perforamnce-based music programs.
Check out other School of Rock Resources


text:
Looking for advice on how to turn off a motor when there is an item blocking a sensor. I found an inductive proximity sensor that I think could work. I am trying to make a brass case annealer similar to this one
What you are looking for is a normally closed relay which is sometimes abbreviated as NC relay. You should place the relay in you circuit so that switch side has the ability to interrupt the motor when the sensor is tripped. Here is a possible schematic of how your circuit could work.
When an object is placed in front of the sensor it closes the sensor which opens the relay which cuts power to the motor. This is one way to achieve control of your motor when an object is placed in front of the sensor.


How fast do Red-Tail Boas grow?
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1 Answer
Depending on the genetics of the snake, it's normal for a Red-Tail Boa to grow 2 feet per year. When they are born, they are usually 15-18 inches in length (depending on what subspecies it is), and they will grow on an average of about 2 inches per month. Again, this is all dependant on their genes and scientific classification. more
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How to Find Prisoner Info and Mugshots
Exploring the criminal justice system on the web
If you're looking for a prison inmate, a mugshot, or more information about the United States criminal justice system, the internet hosts a number of websites that can help.
The resources below can be used to locate inmate pictures, find which facility an inmate is located at, see where prisons and jails are in each state, and learn other details related to the penal system.
A facility might not update its online information on a prisoner for 24 hours or longer after incarceration.
Find Prisoners With a Federal Inmate Locator
Person using the Federal Bureau of Prisons database
Maddy Price / Lifewire
The easiest way to do a nationwide inmate search to locate which prison an inmate is located at (or where they were held before release), is to search for the person using the Find an Inmate search tool on It works for any offender incarcerated from 1982 to present day.
If you know the person's BOP register, DCDC, FBI, or INS number, you can search by it for a super-targeted search. Otherwise, try finding the inmate by their name, age, and gender.
Find Information About State Prison Systems
VINELink Iowa page
VINELink, a service of the National Victim Notification Network, lets you search criminal cases and offender information state by state, using their name or offender ID number. You also have the opportunity to obtain information about current criminal cases and the status of offenders.
The same website from above can be used to find more information about federal prisons, such as the prison's primary email address and phone number, its judicial district and county, how many inmates are in the prison, and more. Visit's Search Locations page for these details.
Locate Inmate Pictures and Mugshots
Since most states keep an online database of people in the penal system, you can usually find mugshots with identifying information such as the date of the crime and the length of the sentence.
To do this, open a search engine like Google and type your state followed by department of corrections to find your jurisdiction's offender database. Like this:
kansas department of corrections
Kansas Department of Corrections website
Once you get to your state's Department of Corrections page, you might have to do a little bit of searching for penal records. Each state has them listed differently; some might have a link to Offender Search or Inmate Search.
Every state's penal search form has a couple of things in common. You'll need at least a last name just to get started, and if you have a first name, you'll have even better results. Unless you have a lot of specific information, try a general search first and narrow it down until you find what you're looking for.
If you want a copy of your own individual arrest images, you can go to the jail where the initial booking took place and make inquiries. The process differs by county and state, but you'll most likely need to make a formal records request to obtain this information. If the mugshot is part of an ongoing investigation, it may be exempt from any kind of public records request depending on where you're located. is another way to find mugshots. Unlike the websites above, it isn't offered by the government, but it still provides millions of records, all browsable by state and searchable by name.
Not every person who gets arrested gets their picture taken, and arrest information isn't necessarily public record unless you're a celebrity or similar person of public interest.
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On September 25, 2018, 14.00-15.00, Dott. Sara Benetti (INCAE Business Schoool) will give a talk on "Impact of Management Training Programs in Developing Rural Areas".
IMPACT OF MANAGEMENT TRAINING PROGRAMS IN DEVELOPING RURAL AREAS
Luciano Ciravegna (King's College London; INCAE Business School)
Sara Benetti (INCAE Business School)
This research project focuses on the impact of series of management training programs delivered to small-size coffee farmers in rural Latin American areas. The training was developed and performed by a German NGO and aimed at improving agricultural practices, plantation management and sustainable processes. Data were gathered at the end of the programs at farms' level, including a control group of farmers in the same areas and with similar farm conditions that did not received the training. Our objective is to assess the impact of this training program on different dimensions of the farms' behavior and performance, for example their productivity (on coffee yield, kg of green beans of coffee produced per hectare) and their adoption of sustainability practices. Furthermore, we are interested in studying the possible effect of poverty of the farmer and weakness of socio-economic context on this impact, evaluating under which conditions managerial training is more effective in terms of enhancing the farming performance.


text:
An aspect of this that isn't covered by the other answers is the following: you say "we are assuming that an externally applied force is pulling the wall out. It's not the gas that is pushing the wall out." But imagine for a moment that the wall is not moving. The gas is pushing on the wall, so in order for it to remain stationary there must be another force pushing in the other direction.
Now, if we suddenly removed this pushing force and started pulling on the wall, it would move very rapidly, because our pull would be added to the gas's push. If we want the wall to move slowly then we shouldn't stop the force that's pushing the wall inwards, but just reduce it very slightly, and allow the gas to do the work of pushing the wall outwards.
So if the wall is moving slowly then it really is the gas that's doing the work of moving it, and not a pulling force from somewhere else. That's why energy can be lost from the gas in this situation without violating the conservation of energy.
Update to address a comment
Russ comments comments that if the wall wasn't moving then no work would be done. The question, then, is what makes the case of a moving wall different?
The short answer is that work $=$ force $\times$ distance, so if the wall does not move then distance $=0$ and so no work is done, whereas if it does move then the distance is greater than $0$ and so the work is positive.
However, that might not be very enlightening, so let's do a little thought experiment. Let's replace the wall with a piston. We won't assume this piston has an infinite mass. Let's say that the piston is rigid (held together by electromagnetic forces, as Russ says). We'll say that it's not moving right now and is held in place just by being a very tight fit to its mantle. ("Mantle" being the technical term for the cylindrical sleeve that a piston fits into.) Outside of the piston is a vacuum, just so that there's nothing else pushing on it.
This is the same situation as the box - the piston is held in place by its rigidity and its connection to the sides - it's just that making it into a piston makes the next bit easier to explain.
Now let's imagine that the gas starts to push the piston outwards very slowly. In this case the pushing force of the gas is almost, but not completely, balanced by the friction of the piston against the mantle walls. We know there must be friction because if there wasn't then the gas would push the piston out very rapidly.
Now, since there is friction there must be heat generated as the piston rubs against the mantle. Heat is a form of energy, so the question to ask yourself is, where is that energy coming from? There's nothing touching the piston other than the mantle and the gas, so the only place it really can come from is the kinetic energy of the gas molecules. The total amount of heat produced is equal to the force the gas exerts on the piston, multiplied by the distance it moves.
If you understand this example it might help you to see why the case where you remove a sequence of stationary walls is different. In this case there is nothing moving against a frictional force, so there's no heat being generated, and there's nowhere else that the molecules' kinetic energy can go. This is why the energy of a gas does not change when it expands into a vacuum but does change when it pushes against a moving wall.
Finally, it's worth commenting on the difference in approach between this answer and the other ones. In the other answers, the wall was assumed to move slowly not because there was an opposing force but because the wall was infinitely heavy. If there is no opposing force and the wall is not very heavy then the pressure of the gas will accelerate it until it is not travelling slowly any more. The "heavy wall" approach allows you to do the kinematic calculations to see how the energy is lost from individual particles, whereas the "opposing force" picture allows you to see what's happening to the energy on a more macroscopic level. But the same amount of energy will be lost from the gas in either case (the gas can't "know" whether there's a heavy wall or an opposing force), and understanding both cases helps you to get a more complete picture of what's going on.


French government renames Twitter hashtag
France's official state documents will now adopt the phrase "mot dièse" to refer to the social networking symbol
French government renames Twitter hashtag
Written By
Sacré bleu! The French government have moved to protect their nation from the sinister Anglicising effect of Twitter by replacing the word "hashtag" with their own Gallic term "mot-dièse", which translates as "sharp word".
The Commission Génerale de Terminologie et de Néologie – a government agency solely responsible for the preservation of the French language – has made it a legal requirement that the French equivalent to the English term be used in all official government legislation and correspondence. French Twitter users will also be encouraged to adopt the new word, although any decision to revert to the use of "hashtag" will not be deemed an illegal offence.
Back in 2003, the same agency attempted to replace the word "email" with the French equivalent, "courriel", with limited success. "Mot dièse" doesn't exactly trip off the tongue so it remains to be seen whether the French will adopt it into their vernacular. _TAG_


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Let $G$ be any countable discrete group, and $H_1, H_2$ be two subgroups of $G$ with some fixed finite index $m>1$.
My question is:
Is it always possible to find some automorphism $\phi$ of $G$, i.e., $\phi\in Aut(G)$, such that $\phi(H_1)=H_2$?
If not, could any one give some counterexample to illustrate this? Thanks in advance!
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3 Answers 3
up vote 5 down vote accepted
Nope: let $G=C_4\times V_4\times\mathbb Z$, where $C_4$ is the cyclic group of order $4$ and $V_4$ is the Klein $4$-group. Let $H_1=C_4\times\{e\}\times\mathbb Z$ and $H_2=\{e\}\times V_4\times\mathbb Z$. Both subgroups have index $4$, but they aren't isomorphic.
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So we can take two non-isomorphic finite groups $G_1, G_2$, of the same order $n$S and a take an infinite group $H$, and consider $G=H\times G_1\times G_2$. Then $H_1=G\times G_1, H_2=G\times G_2$ may work generalizing your idea. – P Vanchinathan Mar 21 at 1:15
_USER_ It depends. Using your notation, if $H$ is a direct sum of countably many copies of $G_1\times G_2$, then $G_1\times H$ is isomorphic to $G_2\times H$ after all. In my example, there is no such accidental isomorphism, since $C_4\times\{e\}\times\mathbb Z$ has an element of order $4$, and $\{e\}\times V_4\times\mathbb Z$ doesn't. – Chris Culter Mar 21 at 1:25
The dihedral group of order 8 has a subgroup isomorphic to the cyclic group of order 4, and has a subroup isomorphic to the Klein group. Both subgroups have index 2 but are non-isomorphic since the first has an element of order 4 but the second does not. No smaller order group G can be found as a counterexample since a nontrivial subgroup of such a G would have order 2 or order 3.
share|improve this answer
Dihedral group G of order 8 also has two subgroups of order 2 with no automorphism of G taking one to the other (take one central, and one not). – Jack Schmidt Mar 21 at 1:57
Take $m\mathbf{Z}, n\mathbf{Z}\subset \mathbf{Z}$. As isomorphisms have to send generator to generator we get conflicting requirement $\phi(1)=\pm1, \phi(m)= \pm n $. So your question has a negative answer.
share|improve this answer
They don't have the same index though – Bruno Joyal Mar 21 at 1:05
OOps, I looked at the title and was misled. My answer is incorrect. – P Vanchinathan Mar 21 at 1:11
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Lightbend Activator
HTML 5 Device Orientation with play, ember and websockets
HTML 5 Device Orientation with play, ember and websockets
Michal Janousek, Martin Zapletal
July 9, 2014
scaladays2014 playframework emberjs scala websockets threejs
This template shows how simple it is to use latest technologies to build a nice modern reactive web application comprising of a Client-side JavaScript App built using EmberJS and WebSockets with WebGL ThreeJS, served from the Play 2 Framework written in Scala which works high velocity data from different sources using Play Iteratees and Akka.
How to get "HTML 5 Device Orientation with play, ember and websockets" on your computer
There are several ways to get this template.
Option 1: Choose reactive-orientation in the Lightbend Activator UI.
Already have Lightbend Activator (get it here)? Launch the UI then search for reactive-orientation in the list of templates.
Option 2: Download the reactive-orientation project as a zip archive
If you haven't installed Activator, you can get the code by downloading the template bundle for reactive-orientation.
 1. Download the Template Bundle for "HTML 5 Device Orientation with play, ember and websockets"
 2. Extract the downloaded zip file to your system
 Or from a command line:
 C:\Users\typesafe\reactive-orientation> activator ui
Option 3: Create a reactive-orientation project from the command line
If you have Lightbend Activator, use its command line mode to create a new project from this template. Type activator new PROJECTNAME reactive-orientation on the command line.
Option 4: View the template source
The creator of this template maintains it at
Option 5: Preview the tutorial below
Preview the tutorial
This template shows how simple it is to use latest technologies to build a nice modern reactive web application comprising of a Client-side JavaScript App built using EmberJS and WebSockets with WebGL ThreeJS, served from the Play 2 Framework written in Scala which works high velocity data from different sources using Play Iteratees and Akka. One of the main goals of this template is to show how such non-trivial application can be written very quickly, elegantly, readably and scalably with just a few lines of code using the Typesafe technologies and to describe and discuss the concepts, technologies, various alternatives that are provided to programmer to meet the goals, provide resources for further education and to help even beginners to start with or improve in using these technologies.
In the beginning it doesn't look very interesting. But we will get there.
Reactive applications are aiming to resolve the latest needs in software development. Even web is quickly moving towards the features of the Reactive Manifesto. The ability to react quickly to user's interaction is becoming more and more important. This activator template illustrates how a real time communication can be simply, reliably and scalably built on the Typesafe platform. The template uses Play 2.3 and utilizes Iteratees as an useful abstraction to handle continuous streams of data in form of real time bidirectional websocket communication as well as Akka Actor web socket interface. Other technologies used are Scala, Play, Akka and Scalaz for server backend and Ember.js, HTML5 device orientation API, Bootstrap and Three.js for front end and visualisation as well as some other smaller tools that will be mentioned in the documentation.
Main functionality of the Play server is to act as a router for web socket messages. It accepts connections on two different web sockets. The first web socket receives messages with data about spatial orientation from an arbitrary number of mobile devices. Web sockets in combination with orientation data serve as a good descriptive source of data with reasonably high volume and velocity so we can show how these can be handled using the Typesafe platform. The server applies transformation function to each message and merges streams of messages from all devices into a single stream which is in turn sent to the other websocket where the data for each individual device are clearly displayed in real time. This is illustrated on the figure below.
Go to Run tab in Activator and start the application and then visit http://localhost:9000. Another option is to start the application from linux terminal using activator run command for Play 2.3. After the application startup, you will be presented by the Dashboard page and IP address of the machine in network. This is because you will need to connect to the Play server from other devices. In real life the application would be deployed in the internet so you would just need to enter the url. This case however requires you to enter the local network address, including port (default 9000) to your mobile device's browser - for example When the page is loaded, select Device tab and click the Start button. If the device supports orientation sensor, it should start sending data to the server. The Dashboard page will show real time information including visualisation of the device's orientation. Each device connected will be presented individually. After certain time of inactivity the device is removed from the Dashboard. Note the visualisation may not be exactly correct, because the alpha represents the angle to north so you may need to adjust your screen with Dashboard manually.
System overview - Server
Play controller
The main work of the application happens in Application.scala. This object is the only Play Controller in the whole application. It has three methods. The index method attempts to retrieve network interfaces to be able to present the IP address and then presents index.scala.html view. The most elegant way is to use play actor sockets (introduced in Play 2.3) for connections from mobile devices and Iteratees/Enumerator for dashboard sockets. You can read about both options in Play scala web sockets. The controller has one instance of Enumerator and one instance of Channel. Messages pushed to the Channel will be received by web sockets using the Enumerator. This is important to understand, because these will be shared by actors that will push messages to the Channel and device websockets who will use the Enumerator.
val (dataEnumerator, dataChannel) = Concurrent.broadcast[JsValue]
Method mobileWebSocket is triggered when a new web socket connection is started from the mobile device. When using actor sockets, Play automatically creates one actor for each connection on the web socket. This is a very convenient way to scale - because actors can run in parallel and have nicely distributed responsibility - having as much actors as devices won't create a performance bottleneck or a single point of failure.
 def mobileWebSocket = WebSocket.acceptWithActor[OrientationChangeEvent, JsValue] { request => out =>
 Props(new StreamMergingActor(dataChannel))
Play automatically sends a message to the specified actor when a message on the web socket interface is received. The type of the message is specified by the first type parameter of acceptWithActor function.
It would be possible to achieve the same using Iteratees and Enumerators approach. The code would then look for example like this.
 def mobileWebSocket = WebSocket.using[OrientationChangeEvent] { request =>
 val in = Iteratee.foreach[OrientationChangeEvent] { mergingActorRouter! _ }
 val out = Enumerator.empty[OrientationChangeEvent]
 (in, out)
In this case, we would however need to take care of the number of actors manually. One solution would be for example to create a Router that distributes incomming messages according to predefined logic. One option to create a router would be to add one actor to the routees with each connection or create a router with a fixed number of actors equal to number of cpu cores available on the machine.
 lazy val mergingActorRouter = Akka.system.actorOf(
 .props(Props(new StreamMergingActor(dataChannel))))
Method dashboardWebSocket manages web socket connections from dashboard page using Iteratee and Enumerator. Iteratee is a representation of incomming message stream and Enumerator of the outgoing. The code handling web sockets from dashboard using Iteratees and Enumerators may look like this.
 def dashboardWebSocket = WebSocket.using[JsValue] { request =>
 (Iteratee.ignore, dataEnumerator)
This solution is very elegant and minimal, because we again use Play to do the hard work. We just use the same channel for each incomming websocket connection. When a message is received from mobile device, the actor that is responsible for handling the message will simply push it to this channel and because it is shared by all Dashboard web sockets, they will automatically all receive the message. In addition, this abstraction very nicely illustrates the intended functionality - messages from multiple devices are merged into one stream! Notice also the Iteratee is ignored (because we are not expecting any messages from the dashboard apart from initial web socket connection). Again this is not the only option and it would be possible implement the same logic using Actor web sockets, but we would have to manually handle the fact that the response is not going to the same socket as the received message.
To summarize the above solution - one actor is created for each Device connection. All these actors push messages the same shared output channel which in turn is also shared by all Dashboard connections.
Scala's ecosystem offers a variety of options to handle this use case. One notable alternative to Play would be for example Spray.
Akka actor
The application only uses one user defined actor located in StreamMergingActor.scala. StreamMergingActor's role is to merge incomming streams from devices and send the resulting stream to dashboards using the share channel. Companion object StreamMergingActor defines messages which the actor understands. OrientationChangeEvent and OrientationChangeData represent one single message received from the mobile device. Each message contains deviceId, information about the device, assigned colour and three values - alpha, beta and gamma - which represent the orientation data and will be explained later. Most important fact is,


text:
BANGOR – Beginning today, motorists traveling on Broadway will see changes to the traffic signal system, city officials announced Tuesday.
Computer models suggest changes to the timing of traffic signals from Grandview Avenue to the Interstate 95 northbound ramps could noticeably improve the flow of traffic on Broadway.
Testing scheduled to begin this morning, after the morning rush, will confirm whether these changes work under actual traffic conditions, City Manager Edward Barrett said Tuesday. If the test is successful, the new system will become permanent.
During the test period, motorists must be alert, recognize that sequences and patterns can change and wait for the signal to clearly allow them to proceed, Barrett said.
As it stands, the signals operate on a single timing plan that is the most efficient when it comes to handling average traffic conditions throughout the day.
New detectors have been installed, however, that continually monitor the volume and direction of traffic in the Broadway corridor.
These data are sent to a master controller that has numerous signal timing plans available, allowing the system to respond to actual traffic volume and direction, according to a press release from the city. Using these data, the appropriate timing plan is selected and sent to signals along the entire corridor.
Depending on the time of day and traffic conditions, some of the timing plans may change the traffic signal sequence at an intersection.
For example, on one day an intersection's left-turn arrow may turn green before the through signals turn green, according to the release. The next day, the left-turn arrow may turn green at the same time as the through signals.
Drivers used to a certain sequence at an intersection may automatically react to the signal sequence they are used to without watching the actual signals, potentially creating traffic hazards.
The changes are the result of work that the city of Bangor, Bangor Area Comprehensive Transportation System and consultant J.W. Sewall Co. are undertaking to optimize traffic signal operation along the Broadway corridor to help traffic move more efficiently throughout the day.
The Broadway project is part of a larger study analyzing several traffic corridors in Bangor, Orono and Old Town with funding from BACTS, the Maine Department of Transportation and the Federal Highway Administration.


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 - Threading behavior and configuration in SI
 My original posting from Friday seems to have vanished, so here it goes again.
 I am trying to find out how to configure the maximum number of threads for the Spring Integration (SI) message-bus.
 Specifically, what is the default number of pooled threads used by the message bus and how do I configure the max number of threads spawned by SI?
 One of our teammates has the following question:
 If you put a hundred messages on a queue (via an SI channel) does SI spawn a hundred threads to process them or do they handle them sequentially or does it create a number of threads up to the default setting and process that way?
 - #2
 You can define a TaskExecutor bean and give it as a reference to the element. If you reuse the same taskExecutor everywhere controlling the number of total threads is trivial.
 To answer you team mate's question: I don't know the exact default from the top of my head. But if you want to can create a TaskExecutor that does it the exact way you like.
 What would be the way you expect SI to behave by default?


text:
A YouTube channel that connects researchers who create science communication videos with people who watch them
Despite YouTube being one of the primary go-to sites for people to learn about science, remarkably few researchers use the platform effectively to communicate about their work.
As there is an increasing demand for quality science video content online, there is a need for a new type of science communication platform – Science Showcase is designed to meet this need.
Science Showcase is a YouTube channel designed to connect the best science communication videos from researchers, with people looking for great science content.
We solicit and evaluate science communication videos from researchers (including citizen scientists) , and then post and promote the best of them.
Encouraging and enabling researchers to communicate their work through short, smart,engaging, accurate, watchable, and above all, authentic, videos.
Building a catalogue of awesome YouTube science videos that are made by scientists for anyone curious to find out more about what they know and do.
Science Showcase was created to fill a demand for a platform where researchers could submit and publish science communication videos and reach a wide audience. It was also conceived in direct response to the need for more and higher quality science content on YouTube – driven by a large number of viewers looking for such content
There's also a larger risk-related purpose behind the channel, and that's to increase the quantity and quality of accessible science content on YouTube that informs evidence-based discussions and decisions.
Science Showcase is currently looking for funding in order to scale up.
Science Showcase was conceived by and is currently managed by Andrew Maynard
Director, Risk Innovation Lab
Using YouTube as a platform for innovative communication on the science of risk to support informed decisions on risks, benefits and tradeoffs. More …
Providing expert insights into the science of ingredient safety. More …
Story Telling and Risk Communication
Stories and storytelling have long since been effective tools for communicating risk from childhood Brothers Grimm fairy tales to cautionary stories online and in the news. We wish to evaluate the relevance of stories to lab safety culture. More …


text: This article explores the impact of the tonsillectomy operation using a large data base and several different approaches. The likely range of effects of the surgery and various threats to validity are studied from a quasi-experimental perspective. Information on possible patient self-selection for tonsil surgery is provided. Selection is dealt with from another viewpoint by comparing the outcomes of patients under the care of physicians having a "high propensity to operate" with those going to physicians who tend to operate less. Finally, a computer simulation studies the extent to which the measured results of tonsil surgery might be explained by particular selection mechanisms working in conjunction with random processes of episode generation. The "savings" in respiratory episodes estimated by the various approaches ranges from 0.1 episodes to approximately 0.8 episode for the year following surgery.


text:
In the middle of industrial Grangemouth, Jupiter is a fantastic example of how wasteland can be transformed into an urban green space that provides a rich habitat and haven for wildlife. The centre is open all year and there are lots of ideas for improving gardens for wildlife.
Address: Jupiter Urban Wildlife Centre, Grangemouth FK3 8LH
Changes to visiting
We have put a few temporary changes in place to keep our staff and visitors safe:
- Visits will be limited to walks and self-led activities, including pond dipping, for the time being. We are exploring how we can restart our ranger-led events as soon as it is safe to do so.
- To allow our visitors and staff to physically distance while visiting, we may temporarily pause entry to the reserve if our visitor numbers have reached capacity. If this is the case, we will place signage at the entrance gate.
- To allow for physical distancing on our pond boardwalk we will be limiting the number of groups/families which can pond dip at one time.
- Entry to the building will be limited to essential access to our public bathroom. If possible, please "Go before you go"!
We have achieved Good to Go certification and have also implemented some new features, including:
- Increased hygiene measures, including hand sanitiser dispensers and an outdoor sink for hand washing
- Increased cleaning
- Regular wiping down of common touch surfaces
- Increased signage
- New risk assessments
- Visit an urban wildlife oasis
- Introduce children to wildlife
- A wasteland returned to nature
- Plenty of variety in a small area
- Pond dipping
Best time to visit?
- Mar to May for woodland birds
- May to Aug for wildflowers
- Aug for dragonflies & damselflies
- Sept to Oct for fungi
Our events are currently on hold due to Covid-19. Please check back soon for more information.


Nuclear physicist who worked for the CIA, executed in Iran
Source : 112 Ukraine
On penalty reported scientist's relatives, after his body was returned to his native city
15:38, 7 August 2016
Фото из открытых источников
Iranian nuclear physicist Shahram Amiri, who lived a long time in the USA was executed in Tehran. This was reported by the scientist's family, according to BBC. On penalty reported Amiri's relatives, when his body was returned to his native city. They found the traces of rope around the neck of the scientist.
Shahram Amiri in 2009 went on a pilgrimage to Mecca, and then disappeared and appeared in the United States, where, as reported he was kept by force by the CIA. US denied any involvement in the abduction. In 2010, ABC News channel reported that a nuclear physicist fled to the United States and helped the CIA to gather information on Iran's nuclear program. Subsequently, the White House said that the scientist willfully fled to the United States and gave Washington the important information.
In 2010, Amiri returned to Tehran, where he was greeted as a hero. However, after this he fell under long period of imprisonment.
Related: Iran is first to ban Pokémon Go
Related: Iranian oil might be transported to Central Europe via Ukraine
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Acctek / HomePage / News / Q&A
How to quickly start running the ARTCAM of CNC Router
Updatetime: 2022-01-12 11:33 View:
ARTCAM software product series is a unique CAD modeling and CNC, CAM processing solution produced by British Delcam company, widely used in CNC engraving production, mold manufacturing, packaging design and sign making and other fields. Fast calculations with ARTCAM result in precise toolpaths, resulting in significant savings in production time and increased profits. Users can make real models without spending time and money, and designers can intuitively see the real design results through the screen.

Almost all the tool paths generated by ARTCAM are suitable for the control software of the CNC router machine. You only need to select the output format according to the files supported by the CNC machine. ARTCAM software can create various engraving paths quickly and flexibly, so how to quickly start and run ARTCAM? You can follow the steps below.

ArtCAM fast start and running

1. Start a new model then set XY size and start origin point(usually on left bottom corner)
ArtCAM start and running
2. Draw any shape and edit the size and position by click transform vector
ArtCAM start and running
3. Edit the position to start point by picture shows below and the size as well.
ArtCAM start and running
4. Choose the vector and click toolpaths - 2D toolpath - profile and edit the parameters.
ArtCAM start and running
5. Choose the tool you will need to use then edit the speed and step down. During test run on CNC router, suggest choose spindle speed 18000 and feedrate 4000mm/min, plunge rate 1000.
ArtCAM start and running
6. Calculate the toolpath and save.
ArtCAM start and running
7. Choose a post processor and save the gcode, usually choose tap.mmg.nc.cnc
ArtCAM start and running
8. After save the gcode you can open it in text and check.
As we see below g code, Z cut 2mm down and working speed is 4000, spindle speed is 18000. Put this file into controller and set proper start point then you can test run the CNC router.
ArtCAM start and running
With the development of technology and the needs of production, the use of CNC router is becoming more and more common. It can carry out more precise automatic processing of materials such as engraving, cutting, drilling and milling. In order to meet different processing needs, ACCTEK is good at customizing multifunctional CNC machines for customers. For example, add a oscillating knife tool to the gantry of the CNC router to cut cloth and leather; or add a plasma cutting gun to the gantry to cut thick metals.

The functions of the CNC router are very diverse. No matter what industry you are in, as long as you are engraving and cutting materials, the CNC machine will provide you with great help.
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text:
The etymology of the term cosmetic combines the idea of order with that of ornament (beauty and image), creating a dual synergistic bond. With the extensive use of cosmetic techniques ornament becomes a tool that takes on new meanings, wider-ranging and even less apparent. The unfinished, the discreet, the lavish or the technified, is also, the, in its own way, ornamented.
Paperback, 19x26 cm
Polígrafa, 1st edition 2020


text: A wide-area time authentication algorithm is proposed to compute the Global Positioning System (GPS) timing that is resilient against spoofing attacks. The considered widearea network consists of multiple GPS receiving systems, each comprising of the innovative distributed multiple directional antennas (DMDA) setup triggered via a common clock. Based on the communication infrastructure of the grid, the single-difference pseudorange residuals across the antennas are processed using the wide-area belief propagation-based extended Kalman filter (BP-EKF) algorithm in a distributed manner. To detect spoofing, a KL-divergence-based threshold is used to estimate the dissimilarity in the antenna-specific timing errors. Thereafter, the pseudoranges are corrected using the BP estimates of timing error and processed via adaptive EKF to compute the GPS timing, which is given to the phasor measurement units (PMUs). We have demonstrated the successfully detection and mitigation of the external timing attack, by subjecting one receiving system to a simulated meaconing attack that induces a 60 micro second time delay. Thereafter, by analyzing the voltage stability index of a critical node in the simulated grid, we have also validated the compliance of the proposed wide-area BP-EKF estimated timing with the IEEE-C37.118 standards.