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Sciligent 12/06/2019 22:20
01. Controlling the optical properties of solids with acoustic waves 02. Novel material switches between electrically conducting and insulating states 03. Quantum dot lasers move a step closer with electric-pumping development 04. Bending an organic semiconductor can boost electrical flow 05. Daylight damage to photovoltaics 06. Researchers find potential solution to overheating mobile phones 07. Study sheds light on the peculiar ‘normal’ phase of high-temperature superconductors 08. An alloy that retains its memory at high temperatures 09. Developing a digital twin 10. A missing link in haze formation And others… Atmospheric river storms create $1 billion-a-year flood damageA decade of […]. .
Sciligent 12/06/2019 22:14
Science Daily December 3, 2019 In the conventional high-temperature shape memory alloy Ti-Ta, the formation of this phase compromises completely the shape memory effect. Addition of other elements to form Ti-Ta-X alloys often modifies the transformation temperatures. Researchers in Germany used transparent descriptors derived from first-principles calculations to search for new ternary Ti-Ta-X alloys that combine stability and high temperatures. They suggest four alloys with these properties, namely Ti-Ta-Sb, Ti-Ta-Bi, Ti-Ta-In, and Ti-Ta-Sc. Their predictions for the most promising of these alloys, Ti-Ta-Sc, are subsequently fully validated by experimental investigations showing no traces of omega phase after cycling. Their computational [
Sciligent 12/06/2019 22:10
Science Daily December 3, 2019 Slightly bending semiconductors made of organic materials can roughly double the speed of electricity flowing through them. An international team of researchers (USA – Rutgers University, UMass Amherst, Japan, South Korea) shows a very strong, anisotropic, and reversible modulation of the intrinsic (trap‐free) charge carrier mobility of single‐crystal rubrene transistors with strain, showing that the effective mobility of organic circuits can be enhanced by up to 100% with only 1% of compressive strain. This study lays the foundation of the strain engineering in organic electronics and advances the knowledge of the relationship between the carrier […]. .
Sciligent 12/06/2019 22:05
Science Daily December 4, 2019 Researchers found that flooding has caused nearly $51 billion in damages to western states in the last 40 years. More than 84 percent of these damages were caused by atmospheric rivers (ARs), long narrow corridors of water vapor in the atmosphere, capable of carrying more than twice the volume of the Amazon river through the sky. A team of researchers in the US (UC San Diego, US Army) used 40 years of data from the National Flood Insurance Program to show that ARs are the primary drivers of flood damages in the western United States. […]. .
Sciligent 12/06/2019 21:56
Science Daily December 2, 2019 The cumulative damage from the sun tends to erode efficiency of a new class of solar cells that utilizes layers of carbon-based polymers. Based on the results of current-voltage curves, impedance spectroscopy, and UV-VIS spectrophotometry, researchers in Japan have determined that exposure to the sun’s ultraviolet light can damage the fragile organic molecules in the semiconducting layer just like it damages human skin. When some sulfur atoms in the materials get replaced by oxygen atoms from the atmosphere, the molecules no longer function as intended. The degradation products from solar damage increased the electrical resistance […]. .
Sciligent 12/06/2019 21:48
Physics World November 29, 2019 Physics World journalists look back at the past decade of winners and explore how research in that field has moved on. Here they examine the 2009 breakthrough for the first “quantum computer”. In August 2009, a NIST team unveiled the first small-scale device that could be described as a quantum computer building up to the breakthrough where the team had used ultracold ions to demonstrate separately all of the steps needed for quantum computation; initializing the qubits; storing them in ions; performing a logic operation on one or two qubits; transferring the information between different […]. .
Sciligent 12/06/2019 21:42
Eurekalert December 5, 2019 A team of researchers in the US ( UT Austin, MIT, industry) is working on Dynamic Data-Driven Application Systems (DDDAS), a project sponsored by the US Air Force, to develop a predictive digital twin for a custom-built UAV.
Sciligent 12/06/2019 21:38
Phys.org November 27, 2019 The universe is governed by four fundamental forces: gravity, electromagnetism and the strong and weak nuclear forces which are a part of the Standard Model of particle physics. But the Standard Model can’t combine with gravity in the way that we thought. Dark matter and dark energy are also problamatic. An international team of researchers (Hungary, the Netherlands) looks at an anomaly in the decay of helium-4 nuclei, and it builds off an earlier study of beryllium-8 decays. That also seems to violate the Standard Model slightly. The fifth force could exist, but we haven’t found […]. .
Sciligent 12/06/2019 21:26
Science Daily November 25, 2019 Particles in the atmosphere that are 2.5 to 10 micrometers in size, can be inhaled, are potentially harming the heart and lungs. Alcohols in general and methanol in particular are believed to play a small role in atmospheric new particle formation (NPF) largely due to the weak binding abilities of alcohols with the major nucleation precursors. An international team of researchers (USA – University of Nebraska, University of Pennsylvania, Finland, China) has identified a catalytic reaction between methanol and sulfur trioxide (SO3) which can have unexpected quenching effects on the NPF process, particularly in dry […]. .
Sciligent 12/06/2019 21:18
Science Daily December 4, 2019 According to the World Health Organisation, around half the world’s population is at risk of contracting dengue. International travelers significantly contribute to dengue’s rapid and large-scale spread by importing the disease from endemic into non-endemic countries. Researchers in Australia consider international air travel volumes to construct weighted networks, representing passenger flows between airports. They calculate the probability of passengers being infected with dengue which depends on the destination, duration and timing of travel. The findings shed light onto dengue importation routes and reveal country-specific reporting rates that have been until now largely unknown. The research […]. .
Sciligent 12/06/2019 21:14
Nanowerk December 4, 2019 Researchers at Northwestern University designed the picoscale crystalline structure of molybdenum oxynitride (MoON), to host the phase transition. The researchers found the metal-insulator transition (MIT) occurred near 600 degrees Celsius, revealing its potential for applications in high-temperature sensors and power electronics. They noted multiple design parameters influenced MoON’s phase transition. The inclusion of multiple anions in the material activated the phase transition due to specific electron configurations related to the spatial orientation of electronic orbitals. The findings offer insight into how subtle changes on the nanoscale can be used to control macroscopic behavior, like conductivity, in […]
Sciligent 12/06/2019 21:06
Phys.org November 29, 2019 Colloidal quantum dots (CQDs) are highly promising materials for light amplification. But band-edge state degeneracy demands multiple excitons to achieve population inversion increasing the lasing threshold and limits the gain lifetime. Researchers in Singapore have demonstrated that the amplified spontaneous emission (ASE) threshold is controllable in a device where CQD film is exposed to an external electric field. Specifically, singly charged CQDs lower the threshold due to the preexisting electron in the conduction band, while strongly enhanced Auger recombination in doubly charged CQDs stymies the ASE. According to the researchers the next big challenge in laser […]. .
Sciligent 12/06/2019 21:00
Phys.org November 29, 2019 Widespread applications of magnetic devices require an efficient means to manipulate the local magnetization. An international team of researchers (Singapore, South Korea) has experimentally demonstrated an alternative approach based on magnon currents and achieved magnon-torque–induced magnetization switching in Bi2Se3/antiferromagnetic insulator NiO/ferromagnet devices at room temperature. The magnon currents carry spin angular momentum efficiently without involving moving electrons through a 25-nanometer-thick NiO layer. The magnon torque is sufficient to control the magnetization. This research, which is relevant to the energy-efficient control of spintronic devices, will invigorate magnon-based memory and log.
Sciligent 12/06/2019 20:56
Science Daily December 3, 2019 In the cuprate high-temperature superconductors, the metallic state above the highest transition temperature is anomalous and is known as the “strange metal.” An international team of researchers (USA – Stanford University, SLAC National Accelerator Laboratory, UC Berkeley, the Netherlands, Japan) studied this state using angle-resolved photoemission spectroscopy. With increasing doping across a temperature-independent critical value pc ~ 0.19, they observed that near the Brillouin zone boundary, the strange metal, characterized by an incoherent spectral function, abruptly reconstructs into a more conventional metal with quasiparticles. Above the temperature of superconducting fluctuations, the pseudo gap also.
Sciligent 11/29/2019 15:11
01. Novel memory device can be written on and read out optically or electrically 02. Laser combo opens up futuristic terahertz technology 03. Molecular eraser enables better data storage and computers for AI 04. Toward more efficient computing, with magnetic waves 05. Sniffing Out Errors 06. Black silicon can help detect explosives 07. A Graphene Waveguide For Electrons 08. NASA rockets study why tech goes haywire near poles 09. Gene Editors Could Find New Use as Rapid Detectors of Pathogenic Threats 10. New technology developed to improve forecasting of Earthquakes, Tsunamis And others… How Brexit Will Affect Europe’s Research InfrastructureMetal-organic […]. .
Sciligent 11/29/2019 15:03
EurekAlert November 27, 2019 Detection of nitroaromatic compounds (NAC) vapors is challenging owing to their low vapor pressure and relatively weak sensitivity of the existing detection techniques. An international team of researchers (Russia, Australia) proposes a novel concept to design fluorescence (FL) detection platforms based on chemical functionalization of nanotextured dielectric surfaces exhibiting resonant light absorption, trapping, and localization effects. They demonstrated the sensor with selective FL-quenching response from monolayers of carbazole moieties covalently bonded to a spiky silicon surface, “black” silicon. It provided unprecedented ppt (10–12) range limits of detection for several NAC vapors. The easy-to-implement.
Sciligent 11/29/2019 14:53
DARPA News November 15, 2019 The overarching goal of Detect It with Gene Editing Technologies (DIGET) is to provide comprehensive, specific, and trusted information about health threats to medical decision-makers within minutes, even in far-flung regions of the globe, to prevent the spread of disease, enable timely deployment of countermeasures, and improve the standard of care after diagnosis.

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