Laxaro

View the latest news and breaking news today

granular material conductivity increases in mysterious ways under pressure - Search

granular material conductivity increases in mysterious ways under pressure Searched from official sources arount the web with simple content and resource link From any languages in different countries.



granular material conductivity increases in mysterious ways under pressure




in a recent study published in epj e, a french team of physicists made systematic measurements of the electrical resistance -- which is inversely related to conductivity -- of metallic, oxidised granular materials in a single 1d layer and in 3d, under compression. mathieu creyssels from the ecole ce...



discovery of new transparent thin film material could improve electronics and so




a team of researchers, led by the university of minnesota, have discovered a new nano-scale thin film material with the highest-ever conductivity in its class.  credit: university of minnesotaa team of researchers, led by the university of minnesota, have discovered a new nano-scale thin film mater...



'persistent photoconductivity' offers new tool for bioelectronics




image: this image illustrates changes in photocurrent before and after exposure to uv light. persistent photoconductivity is demonstrated even hours after the uv light has been turned off. this is illustrated... view more credit: albena ivanisevicresearchers at north carolina state university have...



'persistent photoconductivity' offers new tool for bioelectronics




changes in photocurrent before and after exposure to uv light. persistent photoconductivity is demonstrated even hours after the uv light has been turned off. this is illustrated by the pictograms showing charge carriers that come into contact with cells at the interface during in vitro experiments....



discovery of new transparent thin film material could improve electronics and so




a team of researchers, led by the university of minnesota, have discovered a new nano-scale thin film material with the highest-ever conductivity in its class. the new material could lead to smaller, faster, and more powerful electronics, as well as more efficient solar cells.the discovery is being ...



discovery of new transparent thin film material could improve electronics and so




a team of researchers, led by the university of minnesota, have discovered a new nano-scale thin film material with the highest-ever conductivity in its class. the new material could lead to smaller, faster, and more powerful electronics, as well as more efficient solar cells.



scientists make stretchy electronics using a soup ingredient




plastics are normally insulators, but using two different polymers, bao and her team came up with one that conducted like a champ. however, it wasn't flexible at all, so the team enlisted the slac national accelerator laboratory and its unique x-ray equipment to find just the right additive. that tu...



application error




acm technews by stanford news march 16, 2017commentsview as:printmobile appshare:send by emailshare on redditshare on stumbleuponshare on tweetershare on facebooksharestanford university researchers have demonstrated how to make a brittle plastic much more flexible, while slightly enhancing its elec...



stable, highly conductive 2-d nanosheets of boron nitride




credit: university of manchesteran international group of researchers has arranged 2d nanosheets of boron nitride, the "white graphene", into membranes with a significant level of conductivity and chemical and thermal stability up to 90°c. achieving an enhanced rate of ion flow through channels and...



the selection of archaeological research material should be re-evaluated




all research requires decisions on how to restrict the material under study. the material included in an archaeological study is in many ways already chosen before the researcher begins to make such decisions. the kinds of selections effected by the research process itself have rarely been examined.



stretching the limits of elastic conductors




a printed elastic conductor maintains high conductivity under strain. the light emitting diode (led) continues to shine brightly even when stretched to five times its original length (bottom). credit: 2017 someya group, the university of tokyo.a newly developed printable elastic conductor retains hi...



stretching the limits of elastic conductors




a newly developed printable elastic conductor retains high conductivity even when stretched to as much as five times its original length, says a japanese team of scientists. the new material, produced in paste-like ink form, can be printed in various patterns on textiles and rubber surfaces as stret...



nano-sized hydrogen storage system increases efficiency




lawrence livermore scientists have collaborated with an interdisciplinary team of researchers including colleagues from sandia national laboratories to develop an efficient hydrogen storage system that could be a boon for hydrogen powered vehicles. hydrogen is an excellent energy carrier, but the de...



a fast, non-destructive test for 2-dimensional materials




image: molecular model of a ws2 triangular monolayer targeted with a green laser (hv'). red light (hv) is emitted from the edges where defects consisting of sulfur vacancies are located. electron-hole... view more credit: yuanxi wang, penn state.thinning a material down to a single-atom thickness ...



direct conversion of rusty stainless steel mesh into stable, low-cost electrodes




chinese scientists have made good use of waste while finding an innovative solution to a technical problem by transforming rusty stainless steel mesh into electrodes with outstanding electrochemical properties that make them ideal for potassium-ion batteries. as reported in the journal angewandte ch...



chemically tailored graphene | eurekalert! science news




image: this is a section of a graphene network with chemically bound hydrogen atom: the spectral vibrational signature of the single carbon-carbon bonds adjacent to the bound hydrogen atom is highlighted... view more credit: copyright: frank hauke, fautwo-dimensional graphene consists of single la...



controlling proton conduction with light




figure. (a) crystal structure of h+ conductive coordination polymer and doped pyranine molecule, which releases/captures h+ by light irradiation. (b) observed h+ conductivity switching property by on/off light irradiation. credit: kyoto universityadding photoacid to a special kind of melted polymeri...



theresa may calls on g7 to combat online extremism




theresa may will push for world leaders to work harder to combat extremism on social media and elsewhere online in the wake of the manchester attack.she will tell leaders at the g7 summit in sicily that more pressure should be put on tech and social media companies to remove extremist material from ...



the selection of archaeological research material should be re-evaluated




the selection of archaeological research material should be re-evaluated. credit: jaana hyvarinen, kinneret regional projectall research requires decisions on how to restrict the material under study. the material included in an archaeological study is in many ways already chosen before the research...



the selection of archaeological research material should be re-evaluated




image: the selection of archaeological research material should be re-evaluated. view more credit: jaana hyvarinen © kinneret regional projectall research requires decisions on how to restrict the material under study. the material included in an archaeological study is in many ways already chosen...



new graphene sensor to improve hepatitis diagnosis




a new uk-china collaborative project is developing a sensor to provide an easy, low-cost method of diagnosing hepatitis on the spot using graphene – an advanced 2-d material known for its high electrical conductivity. the sensor will be the first to simultaneously test for three types of hepatitis...



intensive blood pressure can reduce risk of harm to heart muscle




winston-salem, n.c. - may 22, 2017 - a new study by researchers at wake forest baptist medical center has shown that aggressive lowering of blood pressure in people with hypertension reduced the risk of left ventricular hypertrophy (lvh). this condition, the enlargement and thickening of the walls o...



evaluating greenhouse gas emissions in an irrigated cropping system




biological science aid, quinn inwards, collecting a gas sample at the gracenet plots in kimberly, idaho. credit: r. dungan.agricultural production in the western u.s. is an important part of the global food supply. however, due to concerns over impacts from agricultural greenhouse gasses on the glob...



destabilized solitons perform a disappearing act




when your heart beats, blood courses through your veins in waves of pressure. these pressure waves manifest as your pulse, a regular rhythm unperturbed by the complex internal structure of the body. scientists call such robust waves solitons, and in many ways they behave more like discrete particles...



a practical guide for avoiding fallacies on syria




seven ways to pressure-test the most common arguments from the anti-interventionist camp