Results 91 to 100 of about 146,495 (299)
Space Shuttle booster thrust imbalance analysis [PDF]
An analysis of the Shuttle SRM thrust imbalance during the steady-state and tailoff portions of the boost phase of flight are presented. Results from flights STS-1 through STS-13 are included.
Bailey, W. R., Blackwell, D. L.
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CHANCE: A FRENCH-GERMAN HELICOPTER CFD-PROJECT [PDF]
, 2006 The paper gives an overview of the CHANCE research project (partly supported by the French DPAC and DGA and the German BMWA) which was started in 1998 between the German and French Aerospace Research Centres DLR and ONERA, the University of Stuttgart and
Altmikus, Andree +4 more
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Field Experiments With a Wind Tunnel on the Flight Speed of Some West African Mosquitoes (Diptera: Culicidae) [PDF]
, 1981 An open wind tunnel, down which air was blown from over a bait animal, was used in the field in the Gambia to measure the flight speed of host-seeking mosquitoes. Insects were trapped on an electrocuting grid fitted halfway up the tunnel. As the speed of
Gillies, M.T., Wilkes, T.J.
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Advanced Science, EarlyView.A data‐driven strategy integrating quantum machine learning (QML) and high‐throughput computing overcomes hot‐cracking limitation to design a novel lightweight aluminum‐based entropy alloy for additive manufacturing. The fabrication transforms brittle intermetallics into deformable hierarchical nanostructures, yielding ultrastrong strength (>1 GPa) and
Enmao Wang +6 more
wiley +1 more source
Aircraft measurements of electrified clouds at Kennedy Space Center [PDF]
The space-vehicle launch commit criteria for weather and atmospheric electrical conditions in us at Cape Canaveral Air Force Station and Kennedy Space Center (KSC) have been made restrictive because of the past difficulties that have arisen when space ...
Bullock, J. W. +4 more
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Assessing Insect Flight Behavior in the Laboratory: A Primer on Flight Mill Methodology and What Can Be Learned [PDF]
Annals of the Entomological Society of America, 2019 Dispersal is a key component in the population ecology and dynamics of insects and remains one of the most difficult and intractable ecological processes to study in the field. As a consequence, many researchers have looked to laboratory methods for investigating the myriad factors that govern and impact an insect’s ability to move within its ...
openaire +1 more source
Advanced Science, EarlyView.This review provides an integrated framework for achieving superior electrochemical performance in sulfide‐based all‐solid‐state batteries. It first delineates mechano‐electrochemical failure modes of cathode active materials and solid electrolytes, then outlines engineering principles for particle morphology, electronic and ionic conduction, and ...
Gawon Song +4 more
wiley +1 more source
Food Chemistry: XA rapid, simple, effective, and green method for the determination of betaine and trigonelline from Lycium chinense Mill. (LCM) and the quantification of the trigonelline in coffee was proposed and validated by matrix-assisted laser desorption ionization
Peipei Zhou +9 more
doaj +1 more source
Thin film strain transducer [PDF]
, 1984 A strain transducer system and process for making the same is disclosed. A beryllium copper ring having four strain gages is electrically connected in Wheatstone bridge fashion to the output instrumentation.
Rand, J. L.
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Advanced Energy Materials, EarlyView.This work uncovers the atomic‐scale origins of exceptional HER performance in amorphous Ni(OH)2 nanosheets by combining atom probe tomography, DFT simulations, and operando spectroscopy. We identify distinct short‐range‐order motifs that accelerate water dissociation, proton transport, and hydrogen adsorption. Embedding Pt single atoms further enhances
Xin Geng +4 more
wiley +1 more source