Results 121 to 130 of about 21,696 (351)

Preliminary design study of hydrogen and ammonia resistojets for prime and auxiliary thrusters [PDF]

Designs of high performance resistojets for primary and auxiliary propulsion are described.Thruster power for the primary propulsion application was in the 2 to 3 kW range while auxiliary propulsion power per thruster was 0.15 to 0.25 kW.
Barker, Larry, Page, Russell J., Stoner, Willis A.   +2 more
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Development of Sub-channel Program and Multi-objective Optimization Method Research for Printed Circuit Heat Exchanger

Yuanzineng kexue jishu
The helium-xenon Brayton cycle system is one of the most feasible small reactor power technology solutions. The performance of the regenerator directly affects the conversion efficiency of the Brayton cycle system.
CHEN Liqin, HUO Honglei, XIE Renyao, YANG Yi
doaj   +1 more source

Nitroxide‐Mediated Photo‐Polymerization: A Swiss Army Knife for Microfluidic Design

Advanced Materials Technologies, EarlyView.
This article illustrates the application of NMP2 to the rapid (less than 1 h) photostructuring and sealing of model structures intended for microfluidic applications. Remarkably, the careful design of resin composition allows completing these steps by simply spreading bare monomer (i.e., no added photoinitiator) on top of the bottom layer embedding ...
Carlo Gonzato, Sandip Wadhai, Jean‐Louis Clement, Florent Malloggi, Yohann Guillaneuf, Olivier Soppera   +5 more
wiley   +1 more source

Investigation of heat transfer performance and enhancement mechanisms of supercritical carbon dioxide in PCHE with fractal airfoil fins

Case Studies in Thermal Engineering
A fractal structure featuring symmetric/asymmetric airfoil fins is embedded within the smooth channels of the printed circuit heat exchanger (PCHE), significantly enhancing its heat transfer performance.
Yong Li, Yu Fu, Jin Zhang, Jiajie Zhang, Jing Xu, Suxia Ma, Bengt Sunden, Gongnan Xie   +7 more
doaj   +1 more source

Evaluation and demonstration of the use of cryogenic propellants /oxygen/hydrogen/ for reaction control systems. Volume 2 - Experimental evaluations and demonstration Final report [PDF]

Evaluation and demonstration of cryogenic propellant /oxygen-hydrogen/ use for spacecraft reaction control ...
Falkenstein, G., Herr, P., Prono, E., Rodewald, N.   +3 more
core   +1 more source

Experimental Investigation on the Freezing Condition of Printed Circuit Heat Exchanger for Cryogenic Liquid Hydrogen Vaporizer

Transactions of the Korean hydrogen and new energy society
>> The purpose of this study is to investigate the freezing phenomena in printed circuit heat exchanger (PCHE) for cryogenic liquid hydrogen vaporizer.
Wookyoung Kim, Bokyem Kim, S. Sohn, Kong-Hoon Lee, Jungchul Kim   +4 more
semanticscholar   +1 more source

Chemically Doped Conductive Polymers for Wearable Health Monitoring

Advanced Materials Technologies, EarlyView.
Among conductive polymers, poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), polyaniline (PANI), and polypyrrole (PPy) are the most studied and applied. Chemical doping significantly boosts intrinsic conductivity and mechanical robustness.
Mengdi Zuo, Jian Song, Hong Hu, Le Zheng, Lei Zhang, Charles H. Lawrie   +5 more
wiley   +1 more source

Status of the advanced Stirling conversion system project for 25 kW dish Stirling applications [PDF]

Heat engines were evaluated for terrestrial Solar Distributed Heat Receivers. The Stirling engine was identified as one of the most promising heat engines for terrestrial applications.
Schreiber, Jeffrey G., Shaltens, Richard K.   +1 more
core   +1 more source

Smart Closed‐Loop Systems in Personalized Healthcare: Advances and Outlook

Advanced Materials Technologies, EarlyView.
A smart closed‐loop e‐textile integrates multimodal sensing, onboard processing, wireless communication, and wearable power to enable real‐time physiological/biochemical monitoring and feedback‐controlled therapy. ABSTRACT Smart textiles represent a revolutionary frontier in healthcare, seamlessly blending fabric and advanced technologies to create ...
Safoora Khosravi, Sang Won Lee, Mohammad Abrar Uddin, Sina Hassanpoor, Neha Suvindran, Katherine Le, Harun Arkaz, Harishkumar Narayana, Saeid Soltanian, Danial Khorsandi, Negar Hosseinzadeh Kouchehbaghi, Taeil Kim, Yangzhi Zhu   +12 more
wiley   +1 more source