Artificial leaf that can convert harmful carbon dioxide into a useful alternative fuel
Scientists have created and artificial leaves that can mimic the real leaves and produce methanol and oxygen instead of glucose and oxygen produced by the real leaves. This new technology, outlined in the journal Nature Energy, was developed by an engineering professor at the University of Waterloo. Making methanol from carbon dioxide, the primary contributor to global warming, would both reduce greenhouse gas emissions and provide a substitute for the fossil fuels that create them.
The key to the process is a cheap, optimized red powder called cuprous oxide. Engineered to have as many eight-sided particles as possible, the powder is created by a chemical reaction when four substances -- glucose, copper acetate, sodium hydroxide and sodium dodecyl sulfate -- are added to water that has been heated to a particular temperature. The powder then serves as the catalyst, or trigger, for another chemical reaction when it is mixed with water into which carbon dioxide is blown and a beam of white light is directed with a solar simulator.
The reaction produces oxygen, as in photosynthesis, while also converting carbon dioxide in the water-powder solution into methanol. The methanol is collected as it evaporates when the solution is heated. Next steps in the research include increasing the methanol yield and commercializing the patented process to convert carbon dioxide collected from major greenhouse gas sources such as power plants, vehicles and oil drilling.
Nano antennas�A faster tool for data transfer
Physicists have converted electrical signals into photons and radiated them in specific directions using a low-footprint optical antenna. The antenna, called directional antennas by researchers, convert electrical signals to radio waves and emit them in a particular direction, allowing increased performance and reduced interference. This principle, which is useful in radio wave technology, could also be interesting for miniaturized light sources. Directional antennas for light could be used to exchange data between different processor cores with little loss and at the speed of light.
The best part is the unusual property of this novel antenna that radiates light in a particular direction although it is very small. As in their "larger counterparts," the radio wave antennas, the directional accuracy of light emission of the new optical antenna is determined by the number of antenna elements. This allows to build the world's smallest electrically powered light source to date which is capable of emitting light in specific direction and so transferring data faster than ever before.
Computer scientists develop new tool that generates videos from themed text
In a world of novice photographers and videographers, capturing a deluge of content via their smartphones and handheld devices, there is a need for an intelligent, easy-to-use tool for automating the creation of movies and video montages. To date, many quality videos still rely on professional frame-based editing tools to manipulate raw footage and produce a coherent video with a captivating storyline.
A global team of computer scientists, from China, US and Israel, have developed "Write-A-Video," a new tool that generates videos from themed text. Using words and text editing, the tool automatically determines which scenes or shots are chosen from a repository to illustrate the desired storyline. The tool enables novice users to produce quality video montages in a simple and user-friendly manner that doesn't require professional video production and editing skills.
Write-A-Video allows users to create a video montage by simply editing the text that accompanies the video. For example, adding or deleting text, and moving sentences around convert to video-editing operations, such as finding corresponding shots, cutting and rearranging shots, and creating a final video montage result. "Write-A-Video uses current advances in automatic video understanding and a unique user interface to allow more natural and simpler video creation. With this tool, the user provides input mostly in the form of editing of text. The tool automatically searches for semantically matching candidate shots from a video repository, and then uses an optimization method to assemble the video montage by cutting and reordering the shots automatically. "Write-A-Video tools also allows users to explore visual styles for each scene using cinematographic idioms generating, for example, faster or slower paced movies, less or more content movements, etc.
- TIET is working on a hospital project for a company in Dubai.
- TIET worked for a consulting project regarding GIS Analysis for Gujrat.
- TIET provided training in IIT Ropar for BIM.
- TIET is working on a civil design project for a bio plant in Rajasthan.
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