Time filter

Source Type

News Article | April 24, 2017
Site: www.sciencemag.org

From the 80-kilogram Great Dane to the 1-kilogram tiny teacup poodle, there seems to be a dog for everyone. Now, the largest genetic analysis to date has figured out how those breeds came to be, which ones are really closely related, and what makes some dogs more susceptible to certain diseases. "They show that by using genetics, you can really show what was going on as [breeders] were making these breeds," says Elinor Karlsson, a computational biologist at the University of Massachusetts Medical Center in Worcester who was not involved with the work. After dogs were initially domesticated—likely between 15,000 and 30,000 years ago—people picked the best hunters, house guards, and herding animals to be their best friends, depending on their needs. There were dogs for war and for cuddling, for fur and meat, and for being good companions. Today dogs come in 350 or so breeds, each with specific traits and behaviors. Many arose in the past 200 years. Some studies have defined the genetics of a relatively small number of breeds, but none has been comprehensive enough to show how and when most came into existence. "The whole period in between [domestication and today] has been a black box," Karlsson says. Elaine Ostrander and Heidi Parker, geneticists at the National Human Genome Research Institute in Bethesda, Maryland, and their colleagues spent 20 years going to dog shows, writing dog fanciers, and getting help from all corners of the world to collect DNA samples; in some cases they used already collected data. They weren’t interested in determining how and when dogs were domesticated, but how all the breeds developed. Their sample now includes 1346 dogs representing 161 breeds, or not quite half of all kinds of dogs. By comparing the differences at 150,000 spots on each dog's genome, they built a family tree. "The scope of the analysis is very impressive, [a] tour-de-force on breed evolution," says evolutionary biologist Robert Wayne of the University of California, Los Angeles, who was not involved with the work. Almost all the breeds fell into 23 larger groupings called clades, the team details today in . Although genetically defined, the clades also tended to bring together dogs with similar traits: Thus boxers, bulldogs, and Boston terriers—all bred for strength—fall into one clade; whereas herders like sheepdogs, corgis, and collies fall into another; and hunters like retrievers, spaniels, and setters fall into a third. The grouping of different breeds that share particular jobs suggests that ancient breeders likely bred dogs for specific purposes, choosing to care for those that were best at guarding or herding. Then, in the past 200 years, people subdivided those larger groups into breeds. But the data also show how some breeds helped create others, as they share DNA with multiple clades. As one of the earliest small dogs, the pug, which hailed from China, was used in Europe from the 1500s onward to shrink other breeds. Thus, pug DNA is part of many other toy and small dog genomes, Parker explains. "This is very exciting!” says Peter Savolainen, an evolutionary geneticist at the Royal Institute of Technology in Solna, Sweden, who was not involved with the work. “It shows how attractive traits from one breed [have] been bred into new breeds." Having these clades will help veterinarians spot potential genetic problems, Parker says. For example, before vets couldn't really understand why a genetic disease called collie eye anomaly, which can distort different parts of the eye, and shows up in collies, border collies, and Australian shepherds, also occurs in Nova Scotia duck tolling retrievers. But the genetic analysis shows that this retriever has either collie or Australian shepherd ancestors that may have passed on the defective gene. "Mixing has resulted in the sharing of specific genomic regions harboring mutations which cause disease in very different breeds," Wayne says. Wayne and Karlsson both stress that to provide more details, the researchers should work to compare whole genomes—the entire 2.5 billion bases. And as Savolainen points out, the work "is a very good first step into the origins of all dog breeds, but half of all breeds are still missing." Ostrander and Parker say they see this publication as a midpoint, not an endpoint. "We had reached a point where we could begin to do some of the things we wanted to do," Ostrander explains. "By no means are we done."


News Article | April 19, 2017
Site: phys.org

Researchers working at the Aalto University and at the Royal Institute of Technology KTH in Stockholm have developed a new method for measuring the number of single walled carbon nanotubes and their concentration in a carbon nanotube layer. The novel method is based on measurement of the Raman spectrum together with precise measurement of mass and optical absorbance. The dependence of the number of the CNTs on the phonon scattering intensity is observed. This method opens an opportunity for the quantitative mapping of sp2 bonded carbon atom distribution (i.e. those atoms that form the carbon nanotubes with bonds to three other carbon atoms) in the CNT layers with a resolution limited by the focused laser spot size. The carbon nanotube (CNT) has a structure of a rolled single layer of graphene, where each carbon atom is bonded with three other carbon atoms. Basically the nanotube can be considered as one large molecule. The length of a CNT varies from one to one hundred micrometers while its diameter is of the order of one nanometer CNT based materials are intensively studied due to a number of novel and unique properties that make them potentially useful in a wide range of applications. Extremely thin CNT layers offer outstanding properties like excellent flexibility, optical transparency, high electrical conductivity, extremely small weight, and low processing costs. Optical and electrical properties of a CNT layer can be varied with changing, e.g., the diameter and length of nanotubes or the amount of carbon nanotubes in the layer. 'CNT layers can be used for fabrication of transparent electrodes, fuel and solar cells, supercapacitors, etc. Therefore, a measurement technique for the number of carbon nanotubes in the CNT layer is very useful,' says Irina Nefedova, one of the researchers in this project, who defended her thesis of electrical and optical properties of carbon nanotubes in March 2017 at Aalto University. Explore further: Reusable carbon nanotubes could be the water filter of the future More information: Ilya V. Anoshkin et al. Single walled carbon nanotube quantification method employing the Raman signal intensity, Carbon (2017). DOI: 10.1016/j.carbon.2017.02.019


News Article | January 20, 2016
Site: www.scientificcomputing.com

Billions of people use the Internet, which requires huge data centers and results in an enormous energy consumption. In her doctoral dissertation at Umeå University, Mina Sedaghat has developed techniques and algorithms to manage and schedule the resources in these large data centers at a lesser cost, more efficiently, more reliably and with a lower environmental impact. The Korean pop-video, Gangnam Style, available on YouTube, has had 2.5 billion viewers, which results in a power consumption of more than 400 GWh. If, in the worst case, the electricity to serve such a demand is generated by diesel, it would mean that more than 250,000 tons of CO2 would be produced, which is equivalent to over 100,000 cars per year. This example is not uncommon. Millions of people are using different services such as Google, Facebook, Twitter and Instagram every day. This increase in Internet usage and the information generated by nearly one billion people entails large data centers with row after row of servers, requiring huge amount of space, electricity and cooling. Sedaghat’s dissertation introduces methods and techniques to efficiently use the servers in the data centers, so that load can be served with fewer resources. What technology can be used? “It could be optimized scheduling systems packing several software components into a few servers in a way that makes full use of processors, memory, bandwidth, network capacity and other resources. In this way, energy efficiency can be improved reducing the negative environmental impact, and at the same time reducing operational costs,” says Mina Sedaghat. The research leading to Sedaghat’s dissertation has been conducted in collaboration with multiple people at Google, the Departments of Mathematics and Mathematical Statistics at Umeå University, and the Department of Communication Network at the Royal Institute of Technology (KTH) in Sweden. Mina Sedaghat comes from Iran. She holds a Degree of Bachelor of Science in Computer Engineering from IAUM, Iran. She later completed her Master’s in Computer Science in Malaysia. Since September 2010, she has taken her doctoral studies at Umeå University under the tuition of Professor Erik Elmroth.


News Article | February 23, 2017
Site: www.eurekalert.org

Professor Julia Hirschberg has been elected to the National Academy of Engineering (NAE), one of the highest professional distinctions awarded to an engineer. Hirschberg was cited by the NAE for her "contributions to the use of prosody in text-to-speech and spoken dialogue systems, and to audio browsing and retrieval." Her research in speech analysis uses machine learning to help experts identify deceptive speech, and even to assess sentiment and emotion across languages and cultures. "I am thrilled to be elected to such an eminent group of researchers," said Hirschberg, who is the Percy K. and Vida L.W. Hudson Professor of Computer Science and chair of the Computer Science Department, as well as a member of the Data Science Institute. "It is such a great honor." Hirschberg's main area of research is computational linguistics, with a focus on prosody, or the relationship between intonation and discourse. Her current projects include research into emotional and deceptive speech, spoken dialogue systems, entrainment in dialogue, speech synthesis, text-to-speech synthesis in low-resource languages, and hedging behaviors. "I was very pleased to learn of Julia's election for her pioneering work at the intersection of linguistics and computer science," Mary C. Boyce, Dean of Engineering and Morris A. and Alma Schapiro Professor, said. "She works in an area that is central to the way we communicate, understand, and analyze our world today and is uncovering new paths that make us safer and better connected. As chair of Computer Science, she has also led the department through a period of tremendous growth and exciting changes." Hirschberg, who joined Columbia Engineering in 2002 as a professor in the Department of Computer Science and has served as department chair since 2012, earned her PhD in computer and information science from the University of Pennsylvania. She worked at AT&T Bell Laboratories, where in the 1980s and 1990s she pioneered techniques in text analysis for prosody assignment in text-to-speech synthesis, developing corpus-based statistical models that incorporate syntactic and discourse information, models that are in general use today. Hirschberg serves on numerous technical boards and editorial committees, including the IEEE Speech and Language Processing Technical Committee and the board of the Computing Research Association's Committee on the Status of Women in Computing Research (CRA-W). Previously she served as editor-in-chief of Computational Linguistics and co-editor-in-chief of Speech Communication and was on the Executive Board of the Association for Computational Linguistics (ACL), the Executive Board of the North American ACL, the CRA Board of Directors, the AAAI Council, the Permanent Council of International Conference on Spoken Language Processing (ICSLP), and the board of the International Speech Communication Association (ISCA). She also is noted for her leadership in promoting diversity, both at AT&T Bell Laboratories and Columbia, and for broadening participation in computing. Among her many honors, Hirschberg is a fellow of the IEEE (2017), the Association for Computing Machinery (2016), the Association for Computational Linguistics (2011), the International Speech Communication Association (2008), and the Association for the Advancement of Artificial Intelligence (1994); and she is a recipient of the IEEE James L. Flanagan Speech and Audio Processing Award (2011) and the ISCA Medal for Scientific Achievement (2011). In 2007, she received an Honorary Doctorate from the Royal Institute of Technology, Stockholm, and in 2014 was elected to the American Philosophical Society. Hirschberg joins Dean Boyce and many other Columbia Engineering colleagues who are NAE members; most recently elected were Professors David Yao (Industrial Engineering and Operations Research) in 2015, Gordana Vunjak-Novakovic (Biomedical Engineering) in 2012, and Mihalis Yannakakis (Computer Science) in 2011. On February 8, the NAE announced 84 new members and 22 foreign members, bringing its total U.S. membership to 2,281 and foreign members to 249. NAE membership honors those who have made outstanding contributions to engineering research, practice, or education, including significant contributions to the engineering literature, and to the pioneering of new and developing fields of technology, making major advancements in traditional fields of engineering, or developing/implementing innovative approaches to engineering education.


News Article | August 22, 2016
Site: news.mit.edu

In a race up a spectacular and treacherous mountain road to the 14,110-foot summit, the KOMMIT Electric Vehicle Team (EVT), led by members of the MIT Electric Vehicle Team and professional rider Yoshihiro Kishimoto, finished second in the electric motorcycle division of the Pikes Peak International Hill Climb (PPIHC) on June 26 in Colorado. Also known as the Race to the Clouds, this was the 100th anniversary of the car and motorcycle race that is 12.5 miles long, climbs 4,725 feet, and turns 156 times. The team finished the course in 11 minutes 10.480 seconds closely behind the winning team, Victory Racing (Polaris Industries’ professional racing team), which posted a time of 10 minutes 17.813 seconds. MIT EVT recruited a diverse set of partners from industry and academia to form KOMMIT EVT: Motorcycle manufacturer Zero Motorcycles provided engineering and hardware support while race companies Komatti from the Isle of Man and Mirai EV of Japan as well as Sweden’s Royal Institute of Technology (KTH) and London’s Brunel University joined the challenge. MIT graduate student Mark Jeunnette, crew manager for the project, remarked that “we had a few components fail during testing such as the motor controller, battery charger, main contactor and we had other logistical challenges such as shipping motorcycles, components and tools to and from Japan.” Early wake up calls made for a rigorous day. Practice sessions on the mountain took place from 2:30 a.m. to 10 a.m. four days in a row as the Pikes Peak road opens to the public at 9:30 a.m. daily except for race day. Debugging and fixing occurred until midnight before the testing cycle repeated. “All of these challenges turned the race and effort leading up to it into a real marathon,” Jeunnette said. The team also received support and encouragement from their competitors. “One of the best parts was the support we got from the other electric bike teams. We borrowed an electrical connector from one team, and got electrical power from another team’s generator after ours had problems. It really felt like everyone was there to push electric vehicles further, not just to win,” Jeunnette added. Team member Lennon Rodgers, a research scientist at MIT’s International Design Center (IDC), “really enjoyed being part of a global team working towards a common goal. Together we accomplished something that would be impossible to do individually — and we successfully navigated cultural and professional differences.” Rodgers and Jeunnette, both MIT alumni, were MIT EVT members in the 2011 Isle of Man TT motorcycle race, in which the team placed 4th. “The Isle of Man project showed me the impact these design-build-race projects can have on engineering students. They attract a student that is not satisfied just solving textbook problems,” Rodgers stated in a recent PPIHC article. “The projects are so real and unforgiving that there is no room for fluff or bad engineering decisions. Through these projects, students learn to be great designers and manage risk.” In addition to starting their own companies, past members of the MIT EVT have gone on to work at Google, Apple, Porsche, BMW, and Tesla. Recruiting and developing these future engineering leaders has been Rodgers’ main motivation in his continuing work with the EVT. “I’m excited and encouraged to see the impact that former EVT students have on the electric vehicle, alternative energy, and autonomous vehicle fields,” remarked Rodgers. The PPIHC entry grew from a dream into reality through a special section of Department of Mechanical Engineering design course 2.752 (Development of Mechanical Products) this past spring, which was taught by Rodgers; Alex Slocum, the Pappalardo Professor of Mechanical Engineering and director of the Precision Engineering Group; and research scientist Nevan Hanumara. The students involved in the project were mechanical engineering undergraduates Jarrod Smith ’16, Paige Reiter ’16, Josh Born ’16, Max Malinowski ’16, and rising senior Richard Huizar; Department of Materials Science and Engineering rising junior Sam Belden, and Department of Aeronautics and Astronautics grad students Sebastien Mannai and Kento Masuyama PhD ’16. Cecil Williams, a student from Harvard University, was also on the team. The team worked during the spring out of the Edgerton Center’s Milkdrop Shop and the International Design Center and was supported by the Edgerton Center, the Department of Mechanical Engineering, and the Office of Digital Learning. With this second place win under their belt, MIT EVT looks forward to the upcoming year. Team members plan to publish a paper based on their Pikes Peak design and race data and to aim their focus on an electric car conversion project.


News Article | October 28, 2016
Site: www.marketwired.com

VANCOUVER, BRITISH COLUMBIA--(Marketwired - Oct. 21, 2016) - International Wastewater Systems Inc. (the "Company") (CSE:IWS) (FRANKFURT:IWI) (OTC PINK:INTWF) is pleased to announce that Dr. Hadi Dowlatabadi and Mr. Pär Dalin have joined as members of the IWS Advisory Board. IWS's Advisory board was established to formally leverage IWS's network of renewable energy experts and industry leaders already supporting the adoption of IWS technology around the world. Dr. Dowlatabadi is the Canada Research Chair & Professor in Applied Mathematics and Global Change at the University of British Columbia; a University Fellow at Resources for the Future, a Washington DC think tank; and an Adjunct Professor at Carnegie Mellon University's Department of Engineering & Public Policy. Dr. Dowlatabadi received a BSc in Physics from Edinburgh University (1980) and a PhD in physics (focussing on integrated energy systems) from the Cavendish Laboratories at the University of Cambridge (1984). His research focuses on interacting social, economic and environmental systems, and how these systems create and respond to challenges over time, at the interface of technology, energy, the environment, public health and public policy. In 2004 Dr. Dowlatabadi co-founded the non-profit Offsetters Climate Neutral Society, a leading provider of sustainability and carbon-management solutions. Offsetters made the 2010 Vancouver Winter Olympics climate neutral and has been a pioneer in GHG reduction strategies. In 2007 Dr. Dowlatabadi co-founded Green-Erg Technologies, a Company focused on energy efficiency projects. Green-Erg is currently building the first off-grid biomass based community energy system (3MWth, 720kWe) in Canada. In 2012 Dr. Dowlatabadi co-founded HydroRun a company that is developing a novel hydrokinetic device to generate electricity from the energy of free-flowing streams, with the goal of dispatchable renewable electricity generation at competitive prices to the grid. Dr. Dowlatabadi was a lead author on the Intergovernmental Panel on Climate Change and also on the Millennium Ecosystem Assessment. Mr. Pär Dalin is currently the Chairman and Partner at Devcco AB (District Energy Venture) in Stockholm, Sweden, a developer of international energy utility and district energy projects. Devcco's partners have led several of the world's largest and most pioneering District Cooling and multi utility developments for the last two decades. Mr. Dalin was previously a co-founder and CEO of Capital Cooling Holding AB where he led energy utility development partnerships with a focus on District Cooling in the US, China, Middle East, Europe and the Caribbean. Mr. Dalin currently serves as a District Energy advisor to both the Swedish Environmental Protection Agency and the United Nations. He also serves as the Swedish representative and Chairman of the District Cooling group of Euroheat & Power, a Brussels-based group representing the District Energy sector with public and private sector representatives from over thirty countries. Mr. Dalin holds a Bachelor degree from Thayer School of Engineering in Hanover, USA, and a Masters degree from the Royal Institute of Technology, Stockholm. Lynn Mueller, CEO of IWS commented: "The global District Energy sector is growing rapidly due to increased economic incentives for energy efficiency projects worldwide, and demand for IWS's thermal heat recovery technology in district-scale projects is growing commensurately. Dr. Dowlatabadi and Pär Dalin are world class additions to our Advisory Board and IWS will benefit enormously from their expertise in District Energy projects." ON BEHALF OF THE BOARD International Wastewater Systems Inc. is a world leader in thermal heat recovery. IWS systems recycle thermal energy from wastewater, generating the most energy efficient and economical systems for heating, cooling & hot water for commercial, residential and industrial buildings. IWS is publicly traded in Canada (CSE:IWS), the United States (OTC:INTWF) and Germany (FRANKFURT:IWI). The CSE does not accept responsibility for the adequacy or accuracy of this release.


News Article | March 30, 2016
Site: www.rdmag.com

One promising approach for scalable quantum computing is to use an all-optical architecture, in which the qubits are represented by photons and manipulated by mirrors and beam splitters. So far, researchers have demonstrated this method, called Linear Optical Quantum Computing, on a very small scale by performing operations using just a few photons. In an attempt to scale up this method to larger numbers of photons, researchers in a new study have developed a way to fully integrate single-photon sources inside optical circuits, creating integrated quantum circuits that may allow for scalable optical quantum computation. The researchers, Iman Esmaeil Zadeh, Ali W. Elshaari, and coauthors, have published a paper on the integrated quantum circuits in a recent issue of Nano Letters. As the researchers explain, one of the biggest challenges facing the realization of an efficient Linear Optical Quantum Computing system is integrating several components that are usually incompatible with each other onto a single platform. These components include a single-photon source such as quantum dots; routing devices such as waveguides; devices for manipulating photons such as cavities, filters, and quantum gates; and single-photon detectors. In the new study, the researchers have experimentally demonstrated a method for embedding single-photon-generating quantum dots inside nanowires that, in turn, are encapsulated in a waveguide. To do this with the high precision required, they used a "nanomanipulator" consisting of a tungsten tip to transfer and align the components. Once inside the waveguide, single photons could be selected and routed to different parts of the optical circuit, where logical operations can eventually be performed. "We proposed and demonstrated a hybrid solution for integrated quantum optics that exploits the advantages of high-quality single-photon sources with well-developed silicon-based photonics," Zadeh, at Delft University of Technology in The Netherlands, told Phys.org. "Additionally, this method, unlike previous works, is fully deterministic, i.e., only quantum sources with the selected properties are integrated in photonic circuits. "The proposed approach can serve as an infrastructure for implementing scalable integrated quantum optical circuits, which has potential for many quantum technologies. Furthermore, this platform provides new tools to physicists for studying strong light-matter interaction at nanoscales and cavity QED [quantum electrodynamics]." One of the most important performance metrics for Linear Optical Quantum Computing is the coupling efficiency between the single-photon source and photonic channel. A low efficiency indicates photon loss, which reduces the computer's reliability. The set-up here achieves a coupling efficiency of about 24% (which is already considered good), and the researchers estimate that optimizing the waveguide design and material could improve this to 92%. In addition to improving the coupling efficiency, in the future the researchers also plan to demonstrate on-chip entanglement, as well as increase the complexity of the photonic circuits and single-photon detectors. "Ultimately, the goal is to realize a fully integrated quantum network on-chip," said Elshaari, at Delft University of Technology and the Royal Institute of Technology (KTH) in Stockholm. "At this moment there are a lot of opportunities, and the field is not well explored, but on-chip tuning of sources and generation of indistinguishable photons are among the challenges to be overcome."


STOCKHOLM, 28-Oct-2016 — /EuropaWire/ — Defence and security company Saab will award a Master’s Scholarship to an Indonesian student as a part of the continuing drive to build a future engineering talent base for the nation. A new scholarship opportunity has been created by Saab together with Chalmers University of Technology, one of Sweden’s top technical universities, in the subject of communication engineering. The scholarship continues the flow of Indonesian students to Sweden for technical studies and will commence in second half of 2017. Last year, Saab together with Sweden’s Royal Institute of Technology (KTH), awarded a scholarship to an Indonesian student for Master studies in aerospace. This year, Saab and Chalmers will collaborate to provide all-inclusive scholarship funding for a student from Indonesia to pursue the communication engineering programme at Chalmers in Gothenburg, covering both living allowance and tuition fee. The scholarship application is open only to Indonesian citizens currently enrolled at an Indonesian university, to or recent graduates holding a technical bachelor’s degree from an Indonesian university. To read more about the application process and to submit an application, please visit: The successful awardee will be announced in the beginning of 2017, to commence the programme in the Autumn of the same year. This is the second two-year Master scholarship presented to Indonesia by the unique combination of Saab and Swedish academia. Harianas Ibnusina Dewang from Bandung Institute of Technology became the first recipient in the beginning of 2016 and arrived earlier this year to Stockholm to begin a two-year course. For further information, please contact: Saab Press Centre +46 (0)734 180 018 presscentre@saabgroup.com Saab serves the global market with world-leading products, services and solutions within military defence and civil security. Saab has operations and employees on all continents around the world. Through innovative, collaborative and pragmatic thinking, Saab develops, adopts and improves new technology to meet customers’ changing needs.


News Article | September 12, 2016
Site: phys.org

Lomonosov MSU physicists found a way to "force" silicon nanoparticles to glow in response to radiation strongly enough to replace expensive semiconductors used in the display business. According to Maxim Shcherbakov, researcher at the Department of Quantum Electronics of Moscow State University and one of the authors of the study, the method considerably enhances the efficiency of nanoparticle photoluminescence. The key to the technique is photoluminescence—the process by which materials irradiated by visible or ultraviolet radiation respond with their own light, but in a different spectral range. In the study, the material glows red. In some modern displays, semiconductor nanoparticles, or so-called quantum dots, are used. In quantum dots, electrons behave completely unlike those in the bulk semiconductor, and it has long been known that quantum dots possess excellent luminescent properties. Today, for the purposes of quantum-dot based displays, expensive and toxic materials are used; therefore, researchers have explored the use of silicon, which is cheaper and well understood. It is suitable for such use in all respects except one—silicon nanoparticles weakly respond to radiation, which is not appealing for optoelectronic industry. Scientists all over the world have sought to solve this problem since the beginning of the 1990s, but until now, no significant success has been achieved. The breakthrough idea about how to "tame" silicon originated in Sweden, at the Royal Institute of Technology, Kista. A post-doctoral researcher named Sergey Dyakov, a graduate of the MSU Faculty of Physics and the first author of the paper, suggested placing an array of silicon nanoparticles in a matrix with a non-homogeneous dielectric medium and covering it with golden nanostripes. "The heterogeneity of the environment, as has been previously shown in other experiments, allows to increase the photoluminescence of silicon by several orders of magnitude due to the so-called quantum confinement," says Maxim Shcherbakov. "However, the efficiency of the light interaction with nanocrystals still remains insufficient. It has been proposed to enhance the efficiency by using plasmons (quasiparticle appearing from fluctuations of the electron gas in metals—ed). A plasmon lattice formed by gold nanostripes 'held' light on the nanoscale, and allowed a more effective interaction with nanoparticles located nearby, bringing its luminescence to an increase." The MSU experiments with samples of a "gold-plated" matrix with silicon nanoparticles brilliantly confirmed the theoretical predictions—the UV irradiated silicon shone brightly enough to be used it in practice. Explore further: Cheap and efficient solar cell made possible by linked nanoparticles More information: Optical properties of silicon nanocrystals covered by periodic array of gold nanowires. Physical Review B. DOI: 10.1103/PhysRevB.93.205413


News Article | January 28, 2016
Site: www.materialstoday.com

I am very pleased to announce that two new Editors joined Polymer Testing on 1 October 2015: Professor Ulf W. Gedde from the Royal Institute of Technology (KTH) in Stockholm, Sweden as Editor for Plastics and Dr Matthias Jaunich from the Federal Institute for Materials Research and Testing (BAM) in Berlin, Germany as Associate Editor for Rubber and Plastics. Please read my Publisher's note for introduction of Professor Gedde and Dr Jaunich.

Loading Royal Institute of Technology collaborators
Loading Royal Institute of Technology collaborators