Results 51 to 60 of about 341,433 (315)

Dual‐Mode Magnetic Elastomer for On‐Demand Motion and Degradation

Advanced Functional Materials, EarlyView.
A dual‐mode magnetic elastomer is introduced, enabling DC field‐driven programmable actuation and AC field‐driven magnetothermal degradation. GHz‐range magnetic fields generate ultrafast heating of magnetic nanoparticles that activates cleavage of the silicone elastomer matrix.
Jieun Han, Hyun An, Min‐Ha Oh, Yu‐Lim Lee, Woojin Jeon, Kyung‐Sub Kim, Jae‐Hwan Lee, Seungmin Kang, Yoon‐Nam Kim, Ji‐Won Kang, Daewhan Kim, Min Sang Kwon, Sang‐Koog Kim, Seung‐Kyun Kang   +13 more
wiley   +1 more source

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

Advanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau, Christian N. Saggau, Stefan Baunack, Thomas Gemming, Yara Abdelaal, Robert Weser, Oliver G. Schmidt, Hagen Schmidt, Andreas Winkler, Mariana Medina‐Sánchez   +9 more
wiley   +1 more source

Application of the heat pipe to enhance the performance of the vapor compression refrigeration system

Case Studies in Thermal Engineering, 2019
This paper presents an application of the heat pipe to enhance the performance of the air conditioner. The study is done in two steps. First, the effect of pertinent parameters on the heat transfer rate of the heat pipe set is investigated. Then the heat
Santiphap Nakkaew, Thunyawat Chitipalungsri, Ho Seon Ahn, Dong-Wook Jerng, Lazarus Godson Asirvatham, Ahmet Selim Dalkılıç, Omid Mahian, Somchai Wongwises   +7 more
doaj   +1 more source

Elephant‐Skin‐Inspired Porous Cementitious Tiles with Programmable Crack Networks for Passive Cooling

Advanced Materials, EarlyView.
Elephant‐skin‐inspired crack networks are programmed in porous diatomaceous earth (DE)‐cement composites using substrate‐guided, stress‐concentration induced fracture. The resulting crack lattices act as capillary conduits that redistribute water, while the porous matrix stores moisture.
Qingya Huang, Kun‐Hao Yu, Ji Yoon Bae, Yunchan Lee, Dorit Aviv, Shu Yang   +5 more
wiley   +1 more source

Pressure drop study of two-phase flows under condensation within capillary tubes

International Journal of Thermofluids
In the present study, an experimental investigation of pressure drops in two-phase flows within capillary tubes operating at low mass flow rates under condensation conditions was conducted.
K. G. Domiciano, M. B. H. Mantelli, M. Mameli, S. Filippeschi   +3 more
doaj   +1 more source

Advanced Separators for Liquid and Quasi‐Solid Lithium Rechargeable Batteries: Design and Development

Advanced Materials, EarlyView.
This review traces the evolution of lithium‐ion battery separators from passive barriers to multifunctional components central to cell safety and performance. Polymer‐ceramic hybrids, nanofiber architectures, and bio‐derived membranes deliver ionic conductivities above 3 mS cm−1, thermal stability beyond 200 °C, and effective suppression of lithium ...
Karthik Vishweswariah, Ningaraju Gejjiganahalli Ningappa, Anil Kumar M. R., Jeremy I. G. Dawkins, Thiago M. G. Selva, Karim Zaghib   +5 more
wiley   +1 more source

Study on Heat Transfer Limitation of Liquid Metal High-temperature Heat Pipe

Yuanzineng kexue jishu, 2022
As a kind of passive equipment with high efficiency, reliability and long-distance heat transfer, heat pipe is widely used in the field of nuclear energy. The reactor with heat pipe as the main heat transfer component came into being, which is heat pipe
ZHANG Jiarui;TIAN Zhixing;WANG Chenglong;TIAN Wenxi;GUO Kailun;QIU Suizheng;SU Guanghui
doaj  

Evaluation of the thermal and hydraulic performances of a very thin sintered copper flat heat pipe for 3D microsystem packages [PDF]

, 2007
The reported research work presents numerical studies validated by experimental results of a flat micro heat pipe with sintered copper wick structure.
Avenas, Y., Kamenova, L., Schaeffer, Ch., Tzanova, S.   +3 more
core   +3 more sources

Synchronizing Tunable Luminescence and Shape Morphing in a Metal Nanocluster–Enabled Hydrogel Platform

Advanced Materials, EarlyView.
A nanocluster–gel platform is developed to synchronously integrate tunable luminescence and shape morphing under a single stimulus, with emission programmability encoded through cluster size modulation (Au10 → Au18). Solvent‐induced shape–optical transitions are visualized in a lotus‐shaped gel that dynamically folds and dims, enabling rapid (< 5 s ...
Hongbin Lin, Zening Huang, Yongshi He, Hongda Wei, Zhucheng Yang, Zhiqiang Hu, Yang Zhou, Xiaorong Song, Sanyang Han, Jianping Xie   +9 more
wiley   +1 more source

Internal flow pattern of the condenser section that affects the heat transfer characteristics of rectangular two-phase closed thermosyphon

Case Studies in Thermal Engineering
This research examines the internal flow patterns within the condenser and evaporator sections that influence the heat transfer characteristics of a rectangular two-phase closed thermosyphon (RTPCT).
Kittipon Khaongam, Teerapat Chompookham, Thanya Parametthanuwat   +2 more
doaj   +1 more source