Results 101 to 110 of about 416,763 (296)
Advanced Energy Materials, EarlyView.This study employs digital advanced manufacturing to develop lightweight, compact porous distributors as alternatives to conventional bipolar plates in PEM fuel cells. A graphene‐coated nickel foam achieves a power density of 1.52 W cm−2, while titanium‐based designs deliver lightweight solutions: an LPBF‐fabricated Gyroid lattice reaches 1.36 W cm−2 ...
Hadi Heidary +9 more
wiley +1 more source
Advanced Energy Materials, EarlyView.This study introduces a multidimensional framework integrating electrical performance, cost, and life cycle assessment for 140 real and virtual battery cells. Results show that LFP offers low emissions and costs, sodium‐ion excels in resource efficiency, and pouch housings and higher energy densities effectively reduce environmental burdens.
Nicolas Peter Kaiser +7 more
wiley +1 more source
LN-SCNet: A Lightweight Convolutional Neural Network for SAR Ship Classification
IEEE AccessShip classification is a critical challenge in the domain of synthetic aperture radar (SAR) automatic target recognition, primarily due to the large number of pixels occupied by ships in high-resolution SAR images. This results in substantial input sizes,
Shuang Zhao +3 more
doaj +1 more source
The design of a long range megatransport aircraft [PDF]
During the period from August 1991 - June 1992 two design classes at Purdue University participated in the design of a long range, high capacity transport aircraft, dubbed the megatransport.
Allen, Carl L., Weisshaar, Terrence A.
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Advanced Energy and Sustainability Research, EarlyView.Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira +4 more
wiley +1 more source
Study on application-oriented evaluation method for stealth materials
Hangkong gongcheng jinzhanThe performance verification and evaluation of stealth materials are a crucial part in the research & development（R&D）and application cycle of high-performance stealth materials.
CUI Yiwen +3 more
doaj +1 more source
AIChE Journal, EarlyView.Abstract Recovery of rare earth elements (REEs) from end‐of‐life (EOL) products represents a strategic opportunity to strengthen the domestic supply chain for rare earth elements. This work presents a superstructure‐based optimization framework for finding the most economical processing pathway for different EOL rare earth permanent magnets (REPMs ...
Chris Laliwala +6 more
wiley +1 more source
Results in EngineeringFirefighting aircraft are highly effective against forest fires, but hazardous low-altitude operations often lead to accidents. Increasing the flight altitude is an effective way to enhance flight safety; however, a higher dropping altitude can result in
Haoran Sun +8 more
doaj +1 more source
Comparison of Structural Concepts for Transport Aircraft with a Tail Cone Turbine [PDF]
An evaluation of three structural concepts for an advanced aircraft design with a tail cone turbine is presented. Structural models were developed using an innovative rapid finite element modeling tool called Conceptual Design Shop (CDS).
Mason, Brian H.
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Aircraft-crash-locating transmitter features design improvements [PDF]
, 1971 Crash locater is automatically ejected from aircraft at time of crash and begins transmitting at emergency radio frequencies monitored by all airports and airport control towers.
Manoli, R., Ulrich, B. R.
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