Results 61 to 70 of about 246,393 (287)

Revealing the Underlying Mechanisms in Performance Enhancement of Shellular Lattice Electrodes During Anion Exchange Membrane Water Electrolysis Process

Advanced Science, EarlyView.
Micro laser powder bed fusion enables architected nickel shellular lattice gas diffusion layers for anion exchange membrane water electrolysis. Among regular open cell geometries, the Gyroid lattice promotes bubble release, convective reactant replenishment and continuous electron transport, delivering low overpotentials, enhanced charge transfer and ...
Tianxiao Niu, Rui Li, Xiao Chen, Deyong Sun, Tianyu Gao, Junhao Ding, Shuo Qu, Xu Song   +7 more
wiley   +1 more source

Insurance for autonomous underwater vehicles [PDF]

, 2007
The background and practice of insurance for autonomous underwater vehicles (AUVs) are examined. Key topics include: relationships between clients, brokers and underwriters; contract wording to provide appropriate coverage; and actions to take when an ...
Bose, N., Blidberg, D.R., Ferguson, J., Griffiths, G.   +3 more
core   +1 more source

Research on azimuth estimation algorithm for explosion sound signals based on single-vector hydrophone

Defence Technology
As an active sound source in underwater acoustic detection, the underwater explosion sound source plays an important role in active detection applications. It can flexibly generate high-power broadband pulse signals underwater.
Yanan Geng, Guojun Zhang, Jie Zhang, Chenyang Yin, Fuzhe Zhang, Jinsheng Hao, Mengfan Wang, Zhengyu Bai, Yuhua Yang, Wendong Zhang   +9 more
doaj   +1 more source

Surface Ship Shock Modeling and Simulation: Two-Dimensional Analysis

Shock and Vibration, 1998
The modeling and simulation of the response of a surface ship system to underwater explosion requires an understanding of many different subject areas. These include the process of underwater explosion events, shock wave propagation, explosion gas bubble
Young S. Shin, Leonard D. Santiago
doaj   +1 more source

Mesoporous PU/PEDOT:PSS Electrodes Reveal Population‐Level Stochastic Bioelectrical Dynamics in Marine Diatoms

Advanced Science, EarlyView.
Mesoporous mixed ionic‐electronic PU/PEDOT: PSS electrodes enable label‐free detection of stochastic extracellular bioelectrical dynamics in living Phaeodactylum tricornutum. Living diatoms actively modulate interfacial ionic dynamics, establishing stochastic electrochemical noise as a sensitive probe of microbial bioelectrochemical activity and a new ...
David M. S. Silva, Felipe L. Bacellar, Raquel Amaral, Louis‐Josselin Lavier‐Aydat, Luísa Cortes, Kamal Asadi, Leïla Tirichine, Paulo R. F. Rocha   +7 more
wiley   +1 more source

Study on Underwater Explosive Forming

Journal of the Japan Society of Precision Engineering, 1965
The authors carried out experiments on underwater explosive free forming with a cylindrical air-layer established over the specimen. When the size of the cylindrical air-layer has been properly selected, the efficiency of deformation will be much improved. This fact seems to offer a suggestion about the effect of gas bubble expansion.
Ujiro NISHIYAMA, Takashi INOUE, Masao OKUNO   +2 more
openaire   +3 more sources

Application of Compressible Multi-component Flow in Underwater Explosion Problems [PDF]

, 2015
High-order accurate shock-capturing schemes had been proposed to resolve compressible flow movement that involving shockwave problem in single-fluid Riemann problems previously.
Jun, Yu, Jian-qiang, Pan, Hai-bin, Mao, Hai-kun, Wang   +3 more
core   +1 more source

Freestanding Hierarchical‐Porous BCZT Thin Films Enable Efficient Ultrasonic Energy Harvesting in Soft Tissue

Advanced Science, EarlyView.
Freestanding hierarchical‐porous BCZT thin films integrate a compliant porous surface with a dense piezoceramic backbone to balance mechanical reliability, voltage sensitivity, and acoustic coupling. The films enable stable wearable pulse‐wave monitoring and enhanced tissue‐coupled ultrasonic energy harvesting, offering a promising route toward soft ...
Zifan Li, Shengwei Gao, Wang Hong, Yuxin Chen, Yiyang Gu, Xu Wang, Chen Tang, Ying Hong, Xuemu Li, Xiaodong Yan, Yi Zheng, Yiming Liu, Junchen Liao, Biao Wang, Shiyuan Liu   +14 more
wiley   +1 more source

Test technology for modeling underwater explosion in centrifuge

Yantu gongcheng xuebao
With the increasing tension in the international arena, the anti-explosion safety of important infrastructures has attracted increasing attention. For the study on underwater explosion, the centrifugal model tests are an important method to study the ...
HU Jing , CHEN Zuyu , LEI Yumeng , WANG Yunchao , ZHANG Zitao , ZHANG Xuedong
doaj   +1 more source

Measurement of Naval Ship Responses to Underwater Explosion Shock Loadings

Shock and Vibration, 2003
The shock-resistance capability of battle ships against a non-contact underwater explosion (UNDEX) is a very critical factor of survivability. In July 1987 and April 2000, we successfully conducted UNDEX shock tests for a coastal mine hunter (MHC) and a ...
Il-Kwon Park, Jong-Chul Kim, Chin-Woo An, Dae-Seung Cho   +3 more
doaj   +1 more source