Results 121 to 130 of about 920,451 (307)

Heat flow in variable polarity plasma arc welds [PDF]

The space shuttle external tank and the space station Freedom are fabricated by the variable polarity plasma arc (VPPA) welding. Heat sink effects (taper) are observed when there are irregularities in the work-piece configuration especially if these ...
Abdelmessih, Amanie N.
core   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Heat Stress Index and Evaluation for Extreme Heat Environment

Zhileng xuebao, 2006
Extreme heat environment is abominable environment,which is mainly involved with high air temperature and high humidity in some special places where people work.Heat stress is a description of extreme heat environment human body suffers.Research and ...
吕石磊, 朱能, 孙丽婧, L, Shilei, Zhu Neng, Sun Lijing   +6 more
doaj   +2 more sources

Effect of climate change, extreme temperatures (heat and cold) on diabetes mellitus risk, hospitalization, and mortality: Global Evidenced Based Study

Frontiers in Public Health
BackgroundClimate change and diabetes mellitus are challenging threats to humanity in the 21st century. Climate change enhances the occurrence and severity of extreme temperature events, heat and cold, which can lead to severe health consequences.
Sultan Ayoub Meo, Narmeen Shaikh, Farah Adnan Abukhalaf, Anusha Sultan Meo, David C. Klonoff, David C. Klonoff   +5 more
doaj   +1 more source

Remarks on NonHamiltonian Statistical Mechanics: Lyapunov Exponents and Phase-Space Dimensionality Loss

, 2002
The dissipation associated with nonequilibrium flow processes is reflected by the formation of strange attractor distributions in phase space. The information dimension of these attractors is less than that of the equilibrium phase space, corresponding ...
Aoki K., D Kusnezov, Evans D. J., Gaspard P., H. A Posch, Hoover W. G., Hoover W. G., K Aoki, Posch H. A., Posch H. A., Ramshaw J. D., Tuckerman M. E., Tzeng W.-J., Wm. G Hoover   +13 more
core   +1 more source

Melt Grafting of Geometry‐Tailored Voltage Stabilizers for High‐Performance Polypropylene Insulation

Advanced Functional Materials, EarlyView.
A scalable one‐step melt grafting strategy is developed to enhance the dielectric properties of isotactic polypropylene by covalently incorporating thermally stable aromatic voltage stabilizers. This solvent‐free approach improves volume resistivity and DC breakdown strength through deep trap formation and charge localization, offering a sustainable ...
Nazirul Mubin bin Normansah, Taehoon Kwon, Hana Kim, Shin‐Ki Hong, Seung Won Lee, Se Hee Lee, Ik‐Su Kwon, Masahiro Kozako, Minhee Kim, Seunggun Yu   +9 more
wiley   +1 more source

Extended hydrodynamic theory of the peak and minimum pool boiling heat fluxes [PDF]

The hydrodynamic theory of the extreme pool boiling heat fluxes is expanded to embrace a variety of problems that have not previously been analyzed. These problems include the prediction of the peak heat flux on a variety of finite heaters, the influence
Dhir, V. K., Linehard, J. H.
core   +1 more source

Spectral analysis of 3D MHD models of coronal structures

, 2009
We study extreme-ultraviolet emission line spectra derived from three-dimensional magnetohydrodynamic models of structures in the corona. In order to investigate the effects of increased magnetic activity at photospheric levels in a numerical experiment,
Barnes, Brandenburg, Brkovic, Culhane, Dere, Donati, Grevesse, Gudiksen, Gudiksen, Gudiksen, Hardi Peter, Harrison, Landi, Mazzotta, Parker, Peter, Peter, Peter, Pia Zacharias, Redfield, Scherrer, Sim, Sven Bingert, Teriaca, Wilhelm, Wood   +25 more
core   +1 more source

Selection Strategies for Flexible Pressure Sensor Electrode Materials Toward Ultrafast Response

Advanced Functional Materials, EarlyView.
This study reveals, for the first time, how the electrode–organic interface governs the temporal performance of flexible pressure sensors. By pairing high‐conductivity CVD PEDOT with commonly used metal electrodes, the authors demonstrate that interfacial energy alignment dictates microsecond‐scale response, providing a straightforward design strategy ...
Jinwook Baek, Yuxuan Zhang, Hyeondong Yang, Minyoung Kim, Pavlos P. Vlachos, Jeongok Choe, Bo‐Gyu Bok, Kejie Zhao, Han‐Wook Song, Min‐Seok Kim, Martin Byung‐Guk Jun, Sunghwan Lee   +11 more
wiley   +1 more source

Too hot to handle: Assessing practitioner climate service needs to advance heat resilience

Climate Services
Extreme heat is deadly and it is disproportionately experienced by lower-income, minority, and marginalized community members. Heat practitioners are faced with the dual challenges of taking action to mitigate the level of heat experienced by local ...
K.M. Archie, D. Hirschfeld, S. Meerow, J.C. Arnott, L. Keith, J.A. Vano, E. Mateo   +6 more
doaj   +1 more source