Results 141 to 150 of about 33,613 (317)

Advances in Electroactive Liquid Crystal Elastomers for Intelligent Robotics and Electronics

Advanced Robotics Research, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) integrate molecular anisotropy with electrical functionality to enable programmable actuation and reconfigurable electronics. This review classifies eLCEs into robotic actuators and adaptive electronics, summarizes key actuation mechanisms, and highlights fabrication strategies that bridge materials to ...
Kavita Ramesh Rathod, Sena Chon, Jae Hyuk Hwang, Sung Hyuk Park, Woohwa Lee, Joonmyung Choi, Shi Hyeong Kim, Seung Hwan Ko, Changsoon Choi, Seon Jeong Kim, Dong‐Gyun Kim, Habeom Lee, Kyung Gook Cho, Woon‐Hong Yeo, Hyun Kim   +14 more
wiley   +1 more source

Key Factors, Degradation Mechanisms, and Optimization Strategies for SCO₂ Heat Transfer in Microchannels: A Review

Energies
Despite a growing body of research on supercritical carbon dioxide (SCO2) heat transfer in microchannels, comprehensive reviews remain scarce. Existing studies predominantly focus on isolated experiments or simulations, yielding inconsistent findings and
Lianghui Guo, Ran Liu, Xiaoqin Xiong, Xinzhe Li, Aoxiang Yin, Runyao Han, Jiahao Zhang, Zhuoqian Liu, Keke Zhi   +8 more
doaj   +1 more source

FLOWS IN MICROCHANNELS

TASK Quarterly, 2001
The aim of this paper is to present a survey of the results for the flows of simple gases and liquids with substructure through narrow channels, obtained with the Direct Monte Carlo and Molecular Dynamics Simulation methods.
ANNA KUCABA-PIĘTAL, ZBIGNIEW WALENTA, ZBIGNIEW PERADZYŃSKI   +2 more
openaire   +1 more source

Seed bubbles stabilize flow and heat transfer in parallel microchannels

, 2009
Seed bubbles are generated on microheaters located at the microchannel upstream and driven by a pulse voltage signal, to improve flow and heat transfer performance in microchannels.
Li, Qian, Zhang, Wei, Liu, Guohua, Xu, Jinliang, Wang, Bin   +4 more
core   +1 more source

Perivascular Matrix Densification Dysregulates Angiogenesis and Activates Pro‐Inflammatory Endothelial Cells

Advanced Science, EarlyView.
Perivascular matrix densification promotes the emergence of aberrant endothelial tip cells (ATECs) that invade and persist within fibrotic microenvironments. Using in vivo lineage tracing and a human microvessel model, this study shows that fibrous matrix cues destabilize VE‐cadherin–mediated junctions to gate TGF‐β signaling, inducing a pro ...
Jingyi Xia, William Y. Wang, Kyle A. Jacobs, Kairav Maniar, Daphne Lin, Evan H. Jarman, Daniel L. Matera, Kristen Loesel, Christopher D. Davidson, Harrison L. Hiraki, Xiaotian Tan, Eve H. Shikanov, Robert N. Kent, Carole Parent, Xudong Fan, Ariella Shikanov, Matthew L. Kutys, Brendon M. Baker   +17 more
wiley   +1 more source

Combined Geometrical Optimisation of a Square Microchannel with Smoothed Corners

Energies
Several engineering systems currently use microchannel heat sinks. In order to increase the performance of these devices, optimisation according to the first and second law of thermodynamics is employed.
Marco Lorenzini, Nicola Suzzi
doaj   +1 more source

Evaporation in Microchannels: Influence of the Channel Diameter on Heat Transfer

This paper discusses the effect of diameter on both flow boiling heat transfer and transition from macro to microchannel evaporation. A recently proposed three-zone flow boiling model based on evaporation of elongated bubbles in microchannels is briefly ...
Thome, J.R., Dupont, V.
core   +1 more source

A criterion for experimental validation of slip-flow modelsfor incompressible rarefied gases through microchannels

, 2004
This paper is devoted to analysing the friction factor for incompressible rarefied gas flow through microchannels. A theoretical investigation is conducted in order to underline the conditions for experimentally evidencing rarefaction effects on the ...
SPIGA, Marco, LORENZINI, MARCO, MORINI G. L., MORINI, GIAN LUCA, LORENZINI M., M. SPIGA   +5 more
core   +1 more source

Spatial Engineering of Gas Diffusion Layers Overcomes Mass Transport Limitations in Fuel Cells

Advanced Science, EarlyView.
ABSTRACT Mass transport limitations at high current densities hinder polymer electrolyte fuel cell (PEFC) performance due to inefficient water management and reactant distribution. Gas diffusion layer (GDL) perforation offers a potential solution as an alternative to complex flow‐field modifications.
Shangwei Zhou, Wenjia Du, Jianuo Chen, Yunsong Wu, Bochen Li, Jieyang Li, Linlin Xu, Winfried Kockelmann, Meng Lin, Marc‐Olivier Coppens, Paul R Shearing, Rhodri Jervis, Thomas S. Miller   +12 more
wiley   +1 more source

Study of the thermomolecular pressure difference phenomenon in thermal creep flows through microchannels of triangular and trapezoidal cross sections

, 2009
This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
Valougeorgis, D, 2nd Micro and Nano Flows Conference (MNF2009), Ritos, K, Lihnaropoulos, Y, Naris, S   +4 more
core