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Elastic motion makes click beetles click, study finds

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Elastic motion makes click beetles click, study finds
Illinois researchers Aimy Wissa, Marianne Alleyne and Ophelia Bolmin studied the motion of a click beetle’s jump and present the first analytical framework to uncover the physics behind ultrafast motion by small animals.
Photo by L. Brian Stauffer
CHAMPAIGN, Ill. Click beetles can propel themselves more than 20 body lengths into the air, and they do so without using their legs. While the jump’s motion has been studied in depth, the physical mechanisms that enable the beetles’ signature clicking maneuver have not. A new study examines the forces behind this super-fast energy release and provides guidelines for studying extreme motion, energy storage and energy release in other small animals like trap-jaw ants and mantis shrimps. ....

United States , University Of Illinois , Beckman Institute , Alison Dunn , Kamel Fezzaa , Aimy Wissa , Marianne Alleyne , L Brian Stauffer , Ophelia Bolmin , John Socha , Carle Illinois College Of Medicine , Beckman Institute For Advanced Science , National Academy Of Science , University Of Illinois Urbana Champaign , Photon Source At Argonne National Laboratory , Us Department Of Energy , Illinois Urbana Champaign , National Academy , Virginia Tech , Advanced Photon Source , Argonne National Laboratory , Carle Illinois College , Advanced Science , ஒன்றுபட்டது மாநிலங்களில் , பல்கலைக்கழகம் ஆஃப் இல்லினாய்ஸ் , பெக்மேன் நிறுவனம் ,

Latch, load and release: Elastic motion makes click beetles click, study finds

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IMAGE: Illinois researchers Aimy Wissa, Marianne Alleyne and Ophelia Bolmin studied the motion of a click beetle s jump and present the first analytical framework to uncover the physics behind ultrafast motion.
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Credit: Photo by L. Brian Stauffer
CHAMPAIGN, Ill. Click beetles can propel themselves more than 20 body lengths into the air, and they do so without using their legs. While the jump s motion has been studied in depth, the physical mechanisms that enable the beetles signature clicking maneuver have not. A new study examines the forces behind this super-fast energy release and provides guidelines for studying extreme motion, energy storage and energy release in other small animals like trap-jaw ants and mantis shrimps. ....

United States , University Of Illinois , Beckman Institute , Alison Dunn , Kamel Fezzaa , Aimy Wissa , Marianne Alleyne , Ophelia Bolmin , John Socha , Carle Illinois College Of Medicine , Beckman Institute For Advanced Science , National Academy Of Science , University Of Illinois Urbana Champaign , Photon Source At Argonne National Laboratory , Us Department Of Energy , Illinois Urbana Champaign , National Academy , Virginia Tech , Advanced Photon Source , Argonne National Laboratory , Carle Illinois College , Advanced Science , Biomechanics Biophysics , Technology Engineering Computer Science , Mechanical Engineering , ஒன்றுபட்டது மாநிலங்களில் ,

ORNL team performs first neutron diffraction experiments on a running engine

ORNL team performs first neutron diffraction experiments on a running engine
Researchers at Oak Ridge National Laboratory (ORNL) have used neutron diffraction to provide noninvasive measurement of lattice strains inside components of a firing engine, thereby enabling the operando study of complex load states and thermal gradients throughout the solid materials. Their results are published in an open-access paper in
Proceedings of the National Academy of Sciences (PNAS).
Engineering neutron diffraction can nondestructively and noninvasively probe stress, strain, temperature, and phase evolutions deep within bulk materials. In this work, we demonstrate operando lattice strain measurement of internal combustion engine components by neutron diffraction. ....

Martin Wissink , Robert Wagner , National Transportation Research Center , Teck Industries , Renewable Energy , Critical Materials Institute , Partnership To Advance Combustion Engines , Researchers At Oak Ridge National Laboratory , Office Of Science , Office Of Energy Efficiency , Department Of Energy Spallation Neutron Source , Transportation Science Division , Sandia National Laboratories , Photon Source At Argonne National Laboratory , Research Institute , Vehicle Technologies Office , Proceedings Of The National Academy Sciences , Manufacturing Office , Oak Ridge National Laboratory , National Academy , Spallation Neutron Source , Southwest Research Institute , Transportation Research Center , Oak Ridge Leadership Computing Facility , Transportation Science , Advanced Photon Source ,

New engine capability accelerates advanced vehicle research

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IMAGE: Oak Ridge National Laboratory is designing a neutronic research engine to evaluate new materials and designs for advanced vehicles using the facilities at the Spallation Neutron Source at ORNL.
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Credit: Jill Hemman/ORNL, U.S. Dept of Energy, and the Southwest Research Institute.
EMBARGOED UNTIL MONDAY, DECEMBER 21, 2020, 3 PM US EASTERN.
In the quest for advanced vehicles with higher energy efficiency and ultra-low emissions, Oak Ridge National Laboratory researchers are accelerating a research engine that gives scientists and engineers an unprecedented view inside the atomic-level workings of combustion engines in real time.
The new capability is an engine built specifically to run inside a neutron beam line. This neutronic engine provides a unique sample environment that allows investigation of structural changes in new alloys designed for the environment of a high-temperature, advanced combustion engine operating in r ....

United States , Martin Wissink , Robert Wagner , National Transportation Research Center , Teck Industries , Partnership To Advance Combustion Engines , Critical Materials Institute , Renewable Energy , Oak Ridge National Laboratory , Office Of Science , Department Of Energy Office Science , Office Of Energy Efficiency , Department Of Energy Spallation Neutron Source , Transportation Science Division , Sandia National Laboratories , Photon Source At Argonne National Laboratory , Proceedings Of The National Academy Sciences , Research Institute , Vehicle Technologies Office , Manufacturing Office , Spallation Neutron Source , National Academy , Southwest Research Institute , Transportation Research Center , Oak Ridge Leadership Computing Facility , Transportation Science ,

PNNL-led team designs highly active cobalt-based PGM-free catalyst for fuel cells

PNNL-led team designs highly active cobalt-based PGM-free catalyst for fuel cells
A multi-institutional research team led by materials scientists from Pacific Northwest National Laboratory (PNNL) has designed a highly active and durable catalyst that doesn’t rely on costly platinum group metals (PGM) to spur the necessary chemical reaction.
The new catalyst contains cobalt interspersed with nitrogen and carbon. When compared to a similarly structured catalyst made from iron another promising, well-studied platinum substitute the team found that the cobalt catalyst achieved a similar reaction but with four times the durability. The research is published in
Nature Catalysis.
The development of catalysts free of platinum-group metals and with both a high activity and durability for the oxygen reduction reaction in proton exchange membrane fuel cells is a grand challenge. Here we report an atomically dispersed Co and N co-doped carbon (Co–N–C) catalyst with a hi ....

New York , United States , Oak Ridge , Yuyan Shao , Nanophase Materials At Oak Ridge National Laboratory , Pacific Northwest National Laboratory , Cell Technologies Office , Los Alamos National Laboratory , National Science Foundation , Environmental Molecular Sciences Laboratory , University Of New York , Oak Ridge National Laboratory , University Of Pittsburgh , Office Of Science , Research Computing , Argonne National Laboratory , University Of Pittsburgh Center , Us Department Of Energy , Photon Source At Argonne National Laboratory , Electrocatalysis Consortium , Washington University In St , Northern Illinois University , University At Buffalo , Washington University , State University , Fuel Cell Technologies Office ,