Cheap hydrogen fuel from seawater may be a step closer

first_imgReaction of [(PY5Me2)MoI]2+ with water to form [(PY5Me2)MoO]2+ and release H2 and half an equivalent of I2. The release of hydrogen was confirmed by mass spectrometry. Image credit: Nature, doi:10.1038/nature08969. (PhysOrg.com) — A new catalyst has been developed to generate hydrogen from water cheaply, but the research was originally intended to make molecules that behaved like magnets. Hydrogen is a clean power source currently produced from natural gas, with carbon dioxide as a by-product. Producing hydrogen from water produces oxygen as a by-product instead. © 2010 PhysOrg.com More information: A molecular molybdenum-oxo catalyst for generating hydrogen from water, Nature 464, 1329-1333 (29 April 2010), doi:10.1038/nature08969 Explore further Citation: Cheap hydrogen fuel from seawater may be a step closer (2010, April 29) retrieved 18 August 2019 from https://phys.org/news/2010-04-cheap-hydrogen-fuel-seawater-closer.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Conventional catalysts capable of splitting water into hydrogen and oxygen are generally too expensive or too weak to work on water effectively enough to produce hydrogen for an inexpensive fuel, but new research has developed a molybdenum catalyst that is robust and cheap enough to do the job, but still requires too much energy to be immediately useful. It does open up new possibilities for scientists to follow in the search for the perfect water-splitting catalyst.One conventional means of splitting water into H2 and O2 is to use a platinum catalyst but the metal is far too expensive for the process to be commercially viable. Other methods use microbial enzymes called hydrogenases containing proteins using nickel and iron, but these methods are either too bulky, slow, or too inefficient to be successful on a commercial basis.The new study by scientists at the University of California, Berkeley, aimed at combining metal atoms with organic molecular groups (called PY5) to produce molecules with the properties of bulk magnets. The researchers, led by Jeffrey Long, found that one of their molecules, a molybdenum-oxo complex, was capable of transferring electrons. This is a major requirement of water-splitting systems, so they tested its ability to split water to generate hydrogen gas and found it was highly successful.The molybdenum compound was so successful it could work on seawater or pure water without additives. The compound is stable due to five bonds holding the molybdenum in place. Long said the molecule is stable for long periods in aqueous solutions, and they saw no degradation in catalytic activity over their three-day experiment. The molecule remains stable even when impurities, such as those found in seawater, are present. This would further reduce the cost since no organic acids or solvents are needed.The compound’s stability makes it more durable than the nickel and iron compounds used previously, but it is slower than the natural hydrogenases and needs a higher electric voltage to operate. The group is now experimenting with different metals and “tweaking” the PY5 groups to see if they can improve the speed and efficiency and reduce the energy requirements. They are also looking at the possibility of coupling the system to solar-generated electricity to make it even more viable. Efficient Catalysts for Making Oxygen for ‘Artificial Photosynthesis’last_img read more

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Linux camp has key to Windows 8 boot lockout

first_img(Phys.org)—Microsoft’s rocky reputation with the open source community was not exactly obliterated with hardware news surrounding the upcoming launch of the operating system, Windows 8. Systems will come with Secure Boot enabled in the Unified Extensible Firmware Interface (UEFI). Only operating systems with an appropriate digital signature will be able to boot. The worry was that only Windows 8 will run on these systems. Users would find it hard to boot non-Microsoft operating systems. UEFI stands for Unified Extensible Firmware Interface (UEFI)and it defines a software interface between an operating system and platform firmware. PC BIOS soon to be replaced by UEFI Numerous PCs designed for the mass market will be labeled with Windows 8 and that in turn set many users to think these are tough times for Linux users to boot their favorite Linux flavors. Some see this as a way for Microsoft simply to ensure security over its machines while others see it as a way for Microsoft to push Linux distributions to the back of the line.Systems with the Designed for Windows 8 that include the Secure Boot can stop unsigned code such as malware from running during the boot process. Any operating system will also be prevented to run if it doesn’t have the approved bootloader.Open source advocates recognize that UEFI has its security merits. Earlier this year, Olaf Kirch, director of the SUSE Linux Enterprise department in SUSE Engineering, called UEFI Secure Boot a useful technology, as it makes life more difficult for attackers to hide a rootkit in the boot chain. At the same time, he said, the basics of its operation, establishing a single root of trust, “conflict with the principles of Open Source development, which must be independent and distributed to work.”Outside Microsoft, big name vendors have been responding with workarounds. Leading Linux names, Canonical, Red Hat, and SUSE have been working on ways that allow their distributions to boot on Windows 8-certified hardware.The Linux Foundation, meanwhile, has come up with a plan to bypass the problem presented by Secure Boot to enable users of open source operating systems to continue to boot on hardware certified for Windows 8. The foundation has announced it will obtain a key from Microsoft and sign a small pre-bootloader. This will allow the booting of any operating system. In a guest post from James Bottomley, Linux Foundation Technical Advisory Board, talked about the Windows 8 move. “In a nutshell, the Linux Foundation will obtain a Microsoft Key and sign a small pre-bootloader which will, in turn, chain load (without any form of signature check) a predesignated boot loader which will, in turn, boot Linux (or any other operating system).”This will be a general purpose solution, not just for Linux. The key would not directly enable booting but instead would transfer control to another bootloader to boot an operating system. As such, the workaround is called the”pre-bootloader.” The pre-bootloader goes past the Secure Boot process. A boot-loader such as GRUB2 takes over and handles the OS booting.According to the Foundation, all the work is left to the real bootloader which “must be installed on the same partition as the pre-bootloader with the known path loader.efi (although the binary may be any bootloader including Grub2).” Once the pre-bootloader is run, the user can boot any OS without having to worry about Secure Boot lockouts. As for a risk that it will turn out to be a vector for malware, the pre-bootloader can be used to boot a CD/DVD installer or LiveCD distribution or even boot an installed operating system in secure mode for any distribution. The pre-bootloader will involve a “present user test.” Someone must be present at boot time to confirm the user wants a particular OS to run. After the pre-bootloader carries out its work, it will wait for a prompt for a user before continuing The user test removes the fear that it can be used to carry malware. More information: www.linuxfoundation.org/news-m … t-system-open-source Explore furthercenter_img Citation: Linux camp has key to Windows 8 boot lockout (2012, October 14) retrieved 18 August 2019 from https://phys.org/news/2012-10-linux-key-windows-boot-lockout.html © 2012 Phys.org This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

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GoPro camera rig creates awesomedude effects

first_img(Phys.org) —What happens when you construct an array of GoPro cameras is the question that is answered in a YouTube posting that is hard to see just once. Permagrin Films’ Marc Donahue used 15 GoPro cameras to shoot a video that was posted on YouTube, where one can see him testing out the results of his arc-shaped rig in varied scenes of creatives’ everyday good lives, cycling, drumming, jumping on the grass, transforming movements into acrobatic stunts. The effects are visually interesting, in the way he manages a mix of slow motion, “bullet time” moves, and free-frame effects. © 2013 Phys.org A CBS News comment on the film expressed surprise that more filmmakers were not following Donahue in using “a gazillion GoPro cameras” for moment-capture with special effects. In his wisdom, he also added, “I suppose there would end up being some poor editor who would to go through and edit a gazillion hours of footage.”Actually, after another trial of the camera array technique, this time with a drummer as the subject, he had been asked by an interviewer how he managed to pull off the post-production editing. He said the difficult part was trying to match cameras both in exposure and in color correction. In the end, he said, he organized everything down to a split second. He used multiple sequences per take, and stacked a final build sequence. “It took a day to convert the footage, which was 750 gigs of data. I was done with the edit in three days. It was a lot of work, over 12 hours a day.” His Permagrin Films is most known as the creation of the Dream Music series. Among the company’s technical specialties is motion-control timelapse. GoPro, which supplied the cameras for the array, is a camera company that defines itself as an activity image-capture company. Its Hero lineup of cameras has fueled company growth. The company sells wearable and gear-mountable cameras and accessories for image capture in high definition. The rig of cameras managed to create numerous effects in transitions that were smooth. Donahue said he looked forward to creating an even smoother look with future attempts, and that he planned to release a music video using more of the array technique. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. More information: www.youtube.com/user/DonahueMarc?feature=watchgopro.com/ UrtheCast to show live HD video of Earth from space (w/ video) Citation: GoPro camera rig creates awesome-dude effects (2013, March 19) retrieved 18 August 2019 from https://phys.org/news/2013-03-gopro-camera-rig-awesome-dude-effects.html Explore furtherlast_img read more

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Researchers sequence genome of mysterious candidate phylum TM6 bacteria

first_img(Phys.org) —Researchers at the J. Craig Venter Institute have succeeded in sequencing the genome of a mysterious type of bacteria known only by its status—candidate phylum TM6. The sample sequenced, the team reports in their paper published in Proceedings of the National Academy of Sciences, was found in a sink drain in a hospital. Study finds evidence of bacteria spread throughout the global ocean © 2013 Phys.org Citation: Researchers sequence genome of mysterious candidate phylum TM6 bacteria (2013, June 11) retrieved 18 August 2019 from https://phys.org/news/2013-06-sequence-genome-mysterious-candidate-phylum.html Summary of genera found in the biofilm sample from single and multievent sorts. Credit: (c)2013 PNAS, doi: 10.1073/pnas.1219809110 Explore furthercenter_img Scientists know that there are a lot of bacteria in the world that have yet to be discovered. Sometimes all they show are evidence of where they’ve been, leading some to call them the “dark matter” of life. One of these, currently dubbed candidate phylum TM6 (first discovered in 1996) is suspecting of living in treated water systems all around the world—since they can’t be grown in a lab, scientists don’t know if they are harmful, helpful or neither. They tend to leave behind evidence of their existence in drains and showerheads, so that’s where the researchers looked after setting up a means of examining them.They found their sample in the form of a biofilm in a sink drain in a public restroom in a hospital. It was of course one of many bacteria in the sample which meant it had to be separated from the others first using fluorescent tagging. The resulting clean sample held single cells clinging together which the researchers pulled apart allowing them to extract individual DNA. The DNA from the bacteria was then compared with DNA from other known bacteria—that helped to rule out the possibility that it was something else, and also in sequencing its genome.After much effort, the team was able to piece together roughly 90 percent of the bacteria’s genome. In so doing they found that the bacteria is not capable of making its own amino acids, which means it likely needs a host to survive. The team theorizes that the bacteria likely live on an amoeba of some sort, or possibly even another kind of bacteria. They still don’t know if TM6 cause problems for us humans however, but suggest the possibility exists—they might be harmful in ways that have not yet been discovered, as other bacteria that use an amoeba as a host have been found to be harmful.The researchers are hopeful that now that the genome of candidate phylum TM6 has been sequenced, the chances of culturing samples in a lab are much greater. That development would of course lead to a much better understanding of the bacteria and hopefully to learning whether it’s something we should be worried about or not. More information: Candidate phylum TM6 genome recovered from a hospital sink biofilm provides genomic insights into this uncultivated phylum, PNAS, Published online before print June 10, 2013, doi: 10.1073/pnas.1219809110AbstractThe “dark matter of life” describes microbes and even entire divisions of bacterial phyla that have evaded cultivation and have yet to be sequenced. We present a genome from the globally distributed but elusive candidate phylum TM6 and uncover its metabolic potential. TM6 was detected in a biofilm from a sink drain within a hospital restroom by analyzing cells using a highly automated single-cell genomics platform. We developed an approach for increasing throughput and effectively improving the likelihood of sampling rare events based on forming small random pools of single-flow–sorted cells, amplifying their DNA by multiple displacement amplification and sequencing all cells in the pool, creating a “mini-metagenome.” A recently developed single-cell assembler, SPAdes, in combination with contig binning methods, allowed the reconstruction of genomes from these mini-metagenomes. A total of 1.07 Mb was recovered in seven contigs for this member of TM6 (JCVI TM6SC1), estimated to represent 90% of its genome. High nucleotide identity between a total of three TM6 genome drafts generated from pools that were independently captured, amplified, and assembled provided strong confirmation of a correct genomic sequence. TM6 is likely a Gram-negative organism and possibly a symbiont of an unknown host (nonfree living) in part based on its small genome, low-GC content, and lack of biosynthesis pathways for most amino acids and vitamins. Phylogenomic analysis of conserved single-copy genes confirms that TM6SC1 is a deeply branching phylum. Journal information: Proceedings of the National Academy of Sciences This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

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Best of Last Week–Littlest quark found cause of Earths first extinction and

first_img This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. In other news, a team of researchers from Canada and the U.S. found evidence that shows Earth’s first mass extinction was caused by critters, not catastrophe—microorganisms with a photosynthetic process evolved, the team found, producing oxygen that was toxic to predecessors. And a team of researchers from Canada and Germany reported making graphene superconductive by it doping with lithium atoms—showing that a model developed three years ago appears to be right. And a team with the Francis Crick Institute found that aspirin could hold the key to supercharged cancer immunotherapy. And speaking of cancer, another combined team of researchers from São Paulo State University in Brazil and the University of Leeds in the U.K. found that Brazilian wasp venom kills cancer cells by opening them up. A large team of international researchers has conducted a study revealing that the human body has gone through four stages of evolution—based on bones 430,000 years old found in Spain.And finally, if you are one of a group of people that never seems to get enough sleep, you may have another problem as well, as a team of researchers has connected sleep loss to higher rates of illness—they found that short sleepers are four times more likely to catch a cold. Which, put another way, could mean that making sure to get enough sleep could mean fewer colds. Citation: Best of Last Week–Littlest quark found, cause of Earth’s first extinction and short sleepers more likely to catch colds (2015, September 7) retrieved 18 August 2019 from https://phys.org/news/2015-09-weeklittlest-quark-earth-extinction-short.html ‘Littlest’ quark-gluon plasma revealed by physicists using Large Hadron Collider (Phys.org)—It was another good week for physics as the “littlest” quark-gluon plasma was revealed by physicists using the Large Hadron Collider—the team from the University of Kansas discovered the material believed to have existed when the universe was born, using fewer particles than was thought to be needed. Another team of researchers from China and the U.S. set an efficiency record demonstrating a quantum computer that “computes without running”—the new generalized CFC was demonstrated to have an efficiency of 85 percent. And a pair of researchers, Raphael Bousso and Netta Engelhardt, proposed a new law that implies thermodynamic time runs backwards inside black holes. Also, a team of researchers from several research institutions in the U.S. has produced the first global antineutrino emission map that highlights the Earth’s energy budget –they believe it will help scientists monitor new and existing man-made sources of radiation.center_img (a) The pulse sequences for the generalized CFC scheme keep the system in its ‘off’ state. (b) Populations of different states as a function of the number of repetitions of pulse sequences. (c) The green curve shows the simulated efficiency (reaching 85%) with practical imperfections, while the dotted curve shows the ideal efficiency (reaching 100%). The dashed line shows the 50% limit. Credit: Kong, et al. ©2015 American Physical Society Explore further © 2015 Phys.orglast_img read more

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Mapping system shows dramatic changes in surface water over past 32 years

first_imgMap of the distribution and change in surface water over 32 years from over 3 million Landsat satellite images. The map shows the Paraná River in North-Eastern Argentina and shows how rivers meander and move, floodplains flood intermittently and new areas of permanent and seasonal water are being created and lost through time. Credit: European Commission – Joint Research Centre, 2016 More information: Jean-François Pekel et al. High-resolution mapping of global surface water and its long-term changes, Nature (2016). DOI: 10.1038/nature20584AbstractThe location and persistence of surface water (inland and coastal) is both affected by climate and human activity and affects climate, biological diversity4 and human wellbeing. Global data sets documenting surface water location and seasonality have been produced from inventories and national descriptions, statistical extrapolation of regional data and satellite imagery, but measuring long-term changes at high resolution remains a challenge. Here, using three million Landsat satellite images, we quantify changes in global surface water over the past 32 years at 30-metre resolution. We record the months and years when water was present, where occurrence changed and what form changes took in terms of seasonality and persistence. Between 1984 and 2015 permanent surface water has disappeared from an area of almost 90,000 square kilometres, roughly equivalent to that of Lake Superior, though new permanent bodies of surface water covering 184,000 square kilometres have formed elsewhere. All continental regions show a net increase in permanent water, except Oceania, which has a fractional (one per cent) net loss. Much of the increase is from reservoir filling, although climate change is also implicated. Loss is more geographically concentrated than gain. Over 70 per cent of global net permanent water loss occurred in the Middle East and Central Asia, linked to drought and human actions including river diversion or damming and unregulated withdrawal. Losses in Australia and the USA linked to long-term droughts are also evident. This globally consistent, validated data set shows that impacts of climate change and climate oscillations on surface water occurrence can be measured and that evidence can be gathered to show how surface water is altered by human activities. We anticipate that this freely available data will improve the modelling of surface forcing, provide evidence of state and change in wetland ecotones (the transition areas between biomes), and inform water-management decision-making. Map of the distribution and change in surface water over 32 years from over 3 million Landsat satellite images. This map shows an inlet in the south of the Bird’s Head Peninsula in West Papua, Indonesia and captures the spatial and temporal patterns in surface water. Dark blue colours are areas of permanent water and the pink colours show areas of where water occurs less often. Credit: European Commission – Joint Research Centre, 2016 Explore further The team reports that their mapping system also offers statistics such as the total amount of various types of water surface area across the globe, or parts of it, which can be used to identify trends such as decreasing water availability in areas where humans are pulling more water out of a system than nature can replace. It can also highlight potential trouble spots by noting, for example, certain details such as the fact that North America holds approximately 52 percent of all global surface water while hosting just five percent of the population. In order to better manage water resources, scientists need to gain a historical perspective on the water systems that cover the planet—from huge lakes to tiny streams. But up till now, there were no available high-resolution maps that show not only where such water systems currently exist but how they have changed in the recent past. To rectify that situation, the researchers collected satellite image data taken every month during the years 1984 to 2015—3,066,102 images in all. They pulled that data into an expert computer system that was tied to the Google Earth Engine. After configuring the system, the team produced a series of high-resolution (to 30 meters) maps. Users of the system can begin with a general overview of an area and then zoom in to study the finer details of a given water system—all while noting changes that have occurred over the recent past.The researchers report that they were able to see some startling changes, such as many water systems completely disappearing from areas in the Middle East. They were also able to pick out new water systems such as places where flooding had changed the course of a river or where dams had been built. The maps also revealed some of the changes that have already been wrought due to climate change—the expansion of lakes in the Tibetan Plateau, for example, that has come about due to increased snow melting on nearby mountains. (Phys.org)—A team of researchers with the European Commission’s Joint Research Centre and Google Switzerland has combined historical data with modern mapping engines to produce high-resolution maps of the world’s surface water (which excludes oceans). In their paper published in the journal Nature, the team describes how they created the new maps and offer some examples of clear changes to surface water over the past several decades. Map of the distribution and change in surface water over 32 years from over 3 million Landsat satellite images. This map shows the upper stretches of the Yenisei River (Река Енисей) in Russia and captures the spatial and temporal patterns in surface water. Dark blue colours are areas of permanent water and the pink colours show areas of where water occurs less often. Credit: European Commission – Joint Research Centre, 2016 Map of the distribution and change in surface water over 32 years from over 3 million Landsat satellite images. This map shows Lake Gairdner National Park in Southern Australia and captures the spatial and temporal patterns in surface water. Credit: European Commission – Joint Research Centre, 2016 Citation: Mapping system shows dramatic changes in surface water over past 32 years (2016, December 8) retrieved 18 August 2019 from https://phys.org/news/2016-12-surface-years.htmlcenter_img New look at how water surface area has changed over the past 30 years Map of the distribution and change in surface water over 32 years from over 3 million Landsat satellite images. This map shows Lake Gairdner National Park in Southern Australia and captures the spatial and temporal patterns in surface water. Credit: European Commission – Joint Research Centre, 2016 This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Map of the distribution and change in surface water over 32 years from over 3 million Landsat satellite images. This map shows Poyang Lake in Jiangxi Province, China and captures the spatial and temporal patterns in surface water. Dark blue colours are areas of permanent water and the pink colours show areas of where water occurs less often. Credit: European Commission – Joint Research Centre, 2016 Journal information: Nature © 2016 Phys.org Map of the distribution and change in surface water over 32 years from over 3 million Landsat satellite images. This map shows an inlet in the south of the Bird’s Head Peninsula in West Papua, Indonesia and captures the spatial and temporal patterns in surface water. Dark blue colours are areas of permanent water and the pink colours show areas of where water occurs less often. Credit: European Commission – Joint Research Centre, 2016 Map of the distribution and change in surface water over 32 years from over 3 million Landsat satellite images. This map shows the River Ob (Река Обь) in western Siberia, Russia and captures the spatial and temporal patterns in surface water. Dark blue colours are areas of permanent water and the lighter blue colours are areas of seasonal water. Green colours represent new areas of seasonal water and pink colours represent areas of lost seasonal water. Credit: European Commission – Joint Research Centre, 2016last_img read more

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First flashes of light observed from individual graphene nanoribbons

first_img This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Journal information: Nano Letters More information: Michael C. Chong et al. “Bright Electroluminescence from Single Graphene Nanoribbon Junctions.” Nano Letters. DOI: 10.1021/acs.nanolett.7b03797 Explore further The researchers, led by Deborah Prezzi at the CNR-Nanoscience Institute in Modena, Italy, and Guillaume Schull at the University of Strasbourg in France, have published a paper on their observations of the first electroluminescence from individual graphene nanoribbons in a recent issue of Nano Letters.”Generally, molecular-scale devices are interesting fundamental systems, but are rather unstable and produce limited amount of signal,” Schull told Phys.org. “In our article, we prove that individual graphene nanoribbons may be used as intense, stable and controllable light sources. These are decisive steps towards real-world optoelectronic applications with nanoscale organic systems.”Although graphene’s excellent electronic properties have been investigated extensively, much less is known about its optical properties. One of the drawbacks of using graphene as a light-emitting device is that graphene sheets do not have an optical band gap. However, recent studies have shown that, when cut into thin ribbons just a few atoms wide, graphene obtains a sizable optical band gap, opening up the possibility of light emission.Experimentally, there have been only a few demonstrations of light emission from graphene nanoribbons, and these have been limited to ensembles of nanoribbons and revealed only weak light emission. So the results of the new study, which show a much brighter light emitted by individual graphene nanoribbons compared to ensembles, hint at the exciting untapped potential of graphene’s optical properties. As the researchers explain in the new study, they used a novel configuration method in which an individual graphene nanoribbon bridges two metallic electrodes, for the first time forming an electronic circuit. Using a microscope tip, the researchers partially lifted the nanoribbon so that it lay partly on the substrate and partly suspended. This configuration reduces the coupling between the nanoribbon and the electrodes that would otherwise quench the light emission. Tests showed that the individual graphene nanoribbons exhibit an intense optical emission of up to 10 million photons per second, which is 100 times more intense than the emission measured for previous single-molecular optoelectronic devices, and comparable to that measured for bright light-emitting devices made of carbon nanotubes.In addition, the researchers found that the energy shift of the main peak changes as a function of the voltage, which provides a way to tune the color of the light. These observations also offer insight into the underlying mechanisms of the light emission from individual graphene nanoribbons, which the researchers plan to further investigate in the future.”We likely will explore the influence of the width of the graphene nanoribbons on the color of the emitted light, as the width is expected to control the size of the gap,” Schull said. “The impact of defects should also be explored. Eventually, one should propose methods to integrate our graphene nanoribbons devices in larger circuitry.” A graphene nanoribbon is partially suspended by a microscope tip, resulting in bright light emission. Credit: Chong et al. ©2017 American Chemical Societycenter_img Chemists synthesize narrow ribbons of graphene using only light and heat For the first time, researchers have experimentally observed light emission from individual graphene nanoribbons. They demonstrated that 7-atom-wide nanoribbons emit light at a high intensity that is comparable to bright light-emitting devices made from carbon nanotubes, and that the color can be tuned by adjusting the voltage. The findings may one day lead to the development of bright graphene-based light sources. Citation: First flashes of light observed from individual graphene nanoribbons (2018, January 10) retrieved 18 August 2019 from https://phys.org/news/2018-01-individual-graphene-nanoribbons.html © 2018 Phys.orglast_img read more

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Money matters and artistic concerns

first_imgThe basic concept was to engage and entertain day to day basic human needs to project the upcoming Budget 2015.The material which has been used includes telephonic wires, cylinder, film roll, CPU, monitor,  etc. The budget is scheduled to be announced on February 28 by Finance Minister Arun Jaitley.On congratulating students, RC Dalal, Executive Director of Fashion Technology said, “As the date of Budget comes around, our expectations arose and our students have perfectly shown this through the use of materials which we all use in our day to day basic needs.” A team of eight students prepared the whole installation which was headed by Kappil Kishor, Senior Faculty Member of JD Institute of fashion Technology. Also Read – ‘Playing Jojo was emotionally exhausting’The institute has been a distinctively eminent name in the design fraternity of India for two and a half decades now. Founded in 1988, the institute is more often than ever, looked upon as a nationwide cornerstone for all the fervent aspirants who endeavor to make a lucrative career in the disciplines of either fashion, interiors or jewellery.The institute focuses on creating the designers of tomorrow.  The institute is committed to anticipating and fulfilling the ever-changing requirements of the design industry by producing world-class designers. JD provides the perfect setting for aspirants to become professionally competent, confident and translating talent into a rewarding career. This provides young JEDIIANS an optimum exposure to the real world of fashion by taking assignments with choicest of brands, participating in selected shows, exhibitions and competitions, while pursuing their education.last_img read more

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Student unrest has led to vacant seats in JU Partha

first_imgKolkata: State Education minister Partha Chatterjee on Tuesday attributed the vacant seats of Jadavpur University to the recent student unrest in the campus. “23 percent of the seats of Jadavpur University are vacant because of student unrest,” Chatterjee said during a discussion at the state Assembly, while tabling five Bills, including setting up of four new universities and renaming one.It may be mentioned that the admission process has come to an end at JU and still, 70 seats in engineering in the varsity are lying vacant. Chatterjee’s remarks came after CPI-M MLA Tanmoy Bhattacharya alleged that there is poor infrastructure and dearth of faculties in the newly set up universities across the state. Also Read – Rain batters Kolkata, cripples normal life”Your government (erstwhile Left Front) had not set up such a huge number of universities during your tenure and so your MLAs are jealous of the our government’s success. Academicians from other states are coming to teach in the colleges and universities of Bengal,” Chatterjee retorted.It may be mentioned that the Education minister was referring to the student movement in the varsity against the university’s decision to scrap admission test for six Humanities subjects in the undergraduate level. The university has subsequently yielded to the pressure from students and brought back admission tests. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedThe minister said that apart from a huge rise in budgetary allocation in the education sector, the enrollment has been raised from 12.5 lakh in 2011 to 18.5 lakh, due to the various student-centric schemes and scholarships.The Murshidabad University Bill, The Alipurduar University Bill, The Greenfield University Bill and The Dakshin Dinajpur University Bill were passed in the state Assembly.”The universities will help in bringing the economically backward classes under the ambit of higher education. All colleges of the concerned districts will be affiliated under the respective new universities,” Chatterjee said.The Purba Medinipur University (Amendment) Bill was also passed. The university has been renamed as Mahatma Gandhi University, to commemorate the 150th birth anniversary of Mahatma Gandhi.last_img read more

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Indian Army joins PLAs 91st Foundation Day celebration

first_imgDarjeeling: The scene was quite different at Nathula on Wednesday.There was no locking of eyeballs nor a standoff. Instead it was bhangra at 1,426 ft as the Indian Army joined the People’s Liberation Army (PLA) to commemorate the 91st Foundation Day of the PLA at Nathula.To mark the occasion, a Special Border meeting between India and China was held at Nathula, the Indo-China border, 56 km away from Gangtok, the capital of Sikkim.On receiving an invitation from the PLA, an Indian Army delegation comprising officers and soldiers took part in the celebrations at Nathula on Wednesday. The PLA troops interacted with the Indian delegation and presented a cultural programme. As a goodwill gesture, the Indian side reciprocated with traditional songs and dances. Also Read – Rain batters Kolkata, cripples normal life”Such interactions between both armies have resulted in promoting mutual understanding and contributed towards achieving common goals of peace and tranquility along the borders,” stated an Army release.Incidentally in the monsoons of 2017, the Chinese and Indian troops had locked eye balls during a 73-day standoff in the strategically located Doklam Plateau, a tri-junction of India-China-Bhutan. Doklam is still seenas a touchy issue.In July 2018, a high-level PLA delegation led by Lt. Gen. Liu Xiaowu, Deputy Commander of the Western Theater Command had visited India including Delhi, Kolkata and the 33 Corps Headquarters at Sukna near Siliguri and held talks with their Indian counterparts.last_img read more

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