Results 111 to 120 of about 296,914 (286)

Characteristic oscillations in frequency-resolved heat dissipation of linear time-delayed Langevin systems: Approach from the violation of the fluctuation response relation

Physical Review Research
Time-delayed effects are widely present in nature, often accompanied by distinctive nonequilibrium features, such as net heat flow from a single thermal bath to the system.
Xin Wang, Ruicheng Bao, Naruo Ohga
doaj   +1 more source

Domain Wall Rebounds Driven by Competing Entropic and Spin‐Transfer Torques in Cylindrical Nanowires

Advanced Functional Materials, EarlyView.
Domain‐wall motion in cylindrical magnetic nanowires driven by nanosecond current pulses. Low current densities efficiently displace domain walls, whereas higher currents cause rebound at the wire ends. The effect results from the interplay between spin‐transfer torque and thermally induced processes, highlighting the role of thermal gradients in ...
Elias Saugar, Jorge Marqués‐Marchán, Sara Catalano, Agustina Asenjo, Michael Foerster, Miguel Angel Niño, Manuel Vazquez, Fèlix Casanova, Arantxa Fraile Rodríguez, Rafael P. Del Real, Oksana Chubykalo‐Fesenko, Cristina Bran   +11 more
wiley   +1 more source

Adaptive fabric with emissivity regulation for thermal management of humans

Nanophotonics
The heat generation of the human body dramatically varies between resting and active status, so dynamic heat dissipation is required to ensure optimal thermal comfort.
Li Xiansheng, Liu Meiling, Chen Ken, Li Lanxin, Pei Gang, Zhao Bin   +5 more
doaj   +1 more source

Application review of IGBT power module cooling system

机车电传动, 2022
As a kind of power semiconductor field-controlled self-shutdown electronic device, IBGT has become an irreplaceable component in new energy vehicle energy conversion, motor driving and high-voltage power switching units.
WANG Weilong, XIANG Liping, ZHAO Guangpan   +2 more
doaj  

Stacking‐Engineered Magnonic Topology and Transport in Honeycomb Homobilayers

Advanced Functional Materials, EarlyView.
ABSTRACT Topological magnons have emerged as a promising platform for dissipationless bosonic transport. However, a straightforward and effective strategy to engineer such topological states in real materials has yet to be fully realized. Here, a general scheme for controlling magnonic topological states via stacking engineering in van der Waals ...
Xiaoran Feng, Yingxi Bai, Bo Yuan, Ying Dai, Baibiao Huang, Chengwang Niu, Xiaotian Wang   +6 more
wiley   +1 more source

Optimal design and test research on heat dissipation of field modulated permanent magnetic gear heat pipes based on phase-change cooling principle

Jixie chuandong
ObjectiveIn response to the problems of easy wear and tear, difficult heat dissipation of the dual rotor air gap mechanical structure, the impact on the operational stability of field modulated magnetic gears (FMMGs), and considering the limitations of ...
WANG Jinzhong, YU Chengwei, ZHOU Yufeng, LUO Shuai, HAO Xiuhong   +4 more
doaj  

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

3D‐Printed Porous Hydroxyapatite Formed via Enzymatic Mineralization

Advanced Functional Materials, EarlyView.
Bone combines lightness, strength, and the ability to heal, inspiring new materials design. This work introduces a room‐temperature, enzyme‐mediated 3D printing method to create porous hydroxyapatite scaffolds. The process avoids energy‐intensive sintering, preserves bioactivity, and allows control over porosity and mineralization.
Francesca Bono, Anna Puiggalí‐Jou, Greta Cocchi, Mariangela Miccoli, Katharina Maniura‐Weber, Marcy Zenobi‐Wong, Esther Amstad   +6 more
wiley   +1 more source

Numerical Simulation of Natural Ventilation in Main Transformer Room of Indoor Substation

Buildings
In the split main transformer room of the indoor substation studied in this paper, the heat dissipation area of the transformer main body and part of the convection pipeline accounts for approximately 5.4% of the total heat dissipation area, with the ...
Jizhi Su, Jun Zhang, Yong Kang, Yijun Wang, Jiyu Zhang   +4 more
doaj   +1 more source

A new model for heating of Solar North Polar Coronal Hole

, 2015
This paper presents a new model of North Polar Coronal Hole (NPCH) to study dissipation/propagation of MHD waves. We investigate the effects of the isotropic viscosity and heat conduction on the propagation characteristics of the MHD waves in NPCH.
Devlen, E., Pekünlü, E. R., Yardımcı, M., Çamurdan, D. Zengin   +3 more
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