I know everything I am looking for is here, watch movies, watch series, education, games, exams, news, current events and many more.
“#Ultrafast hydrogen bond dynamics of liquid water revealed by THz-induced Kerr effect” a, Schematic diagram of the experimental system. A broadband THz pump pulse (peak electric field strength of 14.9 MV/cm, centre frequency of 3.9 THz, and bandwidth of 1-10 THz) excites liquid water to initiate transient birefringence caused by THz Kerr effect (TKE), which…
“#A new design for flow batteries” The setup for testing the cell of vanadium redox flow battery. MEA is mounted on a tripod above the peristaltic pump. The tanks are filled with vanadium electrolyte (before the start of charging process). Credit: Study authors. In 2020, China plans to launch the largest battery complex in the…
“#Novel method of heat conduction could be a game changer for server farms and aircraft” Lab member Mojtaba Edalatpour shows the thermal diode developed by Boreyko’s team. Credit: Virginia Tech Jonathan Boreyko, an associate professor in mechanical engineering, has developed an aircraft thermal management technology that stands ready for adaptation into other areas. The research…
“#Pothole repair made eco-friendly using grit from wastewater treatment” Researchers are turning grit from wastewater (left) into a ceramic mortar that can be used as pothole filler (right). Credit: Zhongzhe Liu Potholes are aggravating to drive over, and they can cause billions of dollars of damage every year to automobile wheels, tires and suspensions. Currently,…
“#Filling the void in ammonia synthesis: The role of nitrogen vacancies in catalysts” Nickel particles dissociate H2 to provide H atoms to either N atoms from the CeN crystal lattice itself or protruding N atoms from N2 molecules filling a nitrogen vacancy. In this study, it was found that CeN without Ni can also dissociate…
“#Mantis shrimp’s dactyl clubs could hold secrets to more resilient surfaces for human use” Credit: Unsplash/CC0 Public Domain University of California, Irvine materials science researchers are learning about resilience from the mantis shrimp. The ancient crustaceans are armed with two hammerlike raptorial appendages called dactyl clubs that they use to bludgeon and smash their prey….
“#We composted ‘biodegradable’ balloons. Here’s what we found after 16 weeks” ‘Biodegradable’ balloons after 16 weeks in freshwater. Credit: Jesse Benjamin, Author provided After 16 weeks in an industrial compost heap, we unearthed blue and white balloons and found them totally unscathed. The knots we spent hours painstakingly tying by hand more than four months…
“#Lab steps on the gas to enhance chemical production” In situ and ex situ X-ray photoelectron spectroscopy and electron microscopy reveal stability of nickel copper alloy catalysts for non-oxidative ethanol dehydrogenation is improved by generating kinetically trapped nickel subsurface states. Credit: Lawrence Livermore National Laboratory To optimize catalyst performance, a team of scientists from Lawrence…
“#Safer, more comfortable soldier uniforms are in the works” In a test, untreated fabric (left-hand panel) burns completely after a flame is removed, whereas fabric treated with phytic acid (right panels) is self-extinguishing in seconds after the ignition source is removed. Credit: Sourabh Kulkarni Uniforms of U.S. Army soldiers must meet a long list of…
“#Mixing silk with polymers could lead to better biomedical implants” Combining silk fabric with epoxy creates laminates that can be formed into shapes, like the structure above, for medical uses. Credit: Jiao Wen & Juan Guan Spun by spiders and silkworms, silk has mystified human engineers who have yet to figure out how to artificially…