Results 21 to 30 of about 296,914 (286)

Optimal Cycles for Low-Dissipation Heat Engines [PDF]

open access: yesPhysical Review Letters, 2020
We consider the optimization of a finite-time Carnot engine characterized by small dissipations. We bound the power with a simple inequality and show that the optimal strategy is to perform small cycles around a given working point, which can be thus chosen optimally.
Paolo Abiuso, Martí Perarnau-Llobet
openaire   +4 more sources

Heat Dissipation at Cement Hardening

open access: yesSouthern Brazilian Journal of Chemistry, 2020
During the construction of concrete structures of small cross-sections, the release of heat during cement hardening has no harmful effects. With the increasing temperature of the hardening cement mass, the rate of cement hydration increases. This increases the rate of release of its heat of hydration of cement.
ZHANAR ZHUMADILOVA, KENZHEBEK AKMALAIULY
openaire   +1 more source

Recent Advances in Thermal Interface Materials for Thermal Management of High-Power Electronics

open access: yesNanomaterials, 2022
With the increased level of integration and miniaturization of modern electronics, high-power density electronics require efficient heat dissipation per unit area.
Wenkui Xing   +3 more
doaj   +1 more source

Experimental and numerical investigations of the transmitting antenna in microwave wireless power transmission with forced air cooling system

open access: yesCase Studies in Thermal Engineering, 2022
To address the heat dissipation problem of the transmitting antenna in microwave power transmission system, an optimization design approach is proposed in this paper.
Sihao Qian   +5 more
doaj   +1 more source

Numerical simulation and optimization of air cooling heat dissipation of lithium-ion battery storage cabin

open access: yes电力工程技术, 2022
For the purpose of investigating the air-cooling heat dissipation system of lithium-ion battery cabin,based on the simulation model of the actual battery cabin,the optimization scheme of air-cooling heat dissipation is designed.
DU Shengxin, JIN Yang
doaj   +1 more source

Research on Thermal Management Coupling by CPCM and Liquid Cooling for Vehicle Lithium-Ion Batteries

open access: yesEnergies, 2023
This study addresses the issue of heat dissipation in 18,650 cylindrical lithium-ion battery packs and proposes a novel heat dissipation model that combines paraffin wax-expanded graphite composite phase change material (CPCM) with liquid cooling ...
Yijin Wang, Changqing Du, Zichen Wang
doaj   +1 more source

Effect of heat treatment on mechanical dissipation in Ta$_2$O$_5$ coatings [PDF]

open access: yes, 2002
Thermal noise arising from mechanical dissipation in dielectric reflective coatings is expected to critically limit the sensitivity of precision measurement systems such as high-resolution optical spectroscopy, optical frequency standards and future ...
Martin, I W   +16 more
core   +3 more sources

Effect of Surface Microstructure on the Heat Dissipation Performance of Heat Sinks Used in Electronic Devices

open access: yesMicromachines, 2021
Heat sinks are widely used in electronic devices with high heat flux. The design and build of microstructures on heat sinks has shown effectiveness in improving heat dissipation efficiency. In this paper, four kinds of treatment methods were used to make
Yuxin You   +6 more
doaj   +1 more source

Generative Modelling With Inverse Heat Dissipation

open access: yes, 2022
While diffusion models have shown great success in image generation, their noise-inverting generative process does not explicitly consider the structure of images, such as their inherent multi-scale nature. Inspired by diffusion models and the empirical success of coarse-to-fine modelling, we propose a new diffusion-like model that generates images ...
Solin Arno   +2 more
openaire   +3 more sources

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