Results 81 to 90 of about 1,612,931 (287)

Study on the Effect of Heat Transfer Characteristics of Energy Piles

Buildings
The thermal performance of energy piles equipped with new metal fins to improve heat transmission is examined in this research. The solid heat transfer module of COMSOL Multiphysics was used to create a 2D numerical model of the energy pile, utilizing ...
Xiaoyang Wang, Tongyu Xu, Kaiming Zhao, Yueqiu Xia, Yuechen Duan, Weijun Gao, Gangqiang Kong   +6 more
doaj   +1 more source

Bioinspired Propulsion Mechanism Using a Fin with a Dynamic Variable-Effective-Length Spring

Journal of Biomechanical Science and Engineering, 2009
Since the propulsion mechanism in fluid using an elastic fin, such as the caudal fin or the pectoral fin of fish, is effective, a number of studies have examined the use of elastic fins for propulsion in water and the development of fish robots using ...
Masataka NAKABAYASHI, Reiji KOBAYASHI, Shunichi KOBAYASHI, Hirohisa MORIKAWA   +3 more
doaj   +1 more source

Biomimetic Self‐Reconfigurable Soft Gripper for Cross‐Scale, Multi‐Particle, and High‐Load Multifunctional Manipulation

Advanced Science, EarlyView.
A fully soft, self‐reconfigurable gripper inspired by rapeseed flowers is monolithically 3D‐printed and electronics‐free, switching between diagonal and parallel finger arrangements. Establishing a self‐reconfigurable grasping paradigm, the gripper enables diverse manipulation tasks, including rotating bulbs, picking fruits, grasping cross‐scale ...
Qiping Xu, Bin Wang, Jinxin Chen, Zhengqiang Guo, Baisong Yang, Chaoqian Chen, Jiancheng Cai, Chee‐Meng Chew, Shiju E   +8 more
wiley   +1 more source

Generation and Enhancement of Persistent Nanoscale Magnetization in All‐Dielectric Metasurfaces by Optically Injected and Localized Free Carriers

Advanced Science, EarlyView.
Infrared metasurface‐guided waves (IR‐MGW) scattered by a time interface (TI) induced by rapid, localized free‐carrier generation can be efficiently rectified to generate strong, persistent magnetic fields. We develop a rigorous, theoretical model to study a time‐varying, dispersive medium and uncover the redistribution of the initial energy of the IR ...
Shivaksh Rawat, Samyobrata Mukherjee, Gennady Shvets   +2 more
wiley   +1 more source

Cicada Wing‐Inspired Skeleton‐GO Networks in Melamine Foams for Multifunctional High‐Performance Composites

Advanced Science, EarlyView.
Inspired by the intricate microstructure of cicada wings, researchers developed a novel in situ skeleton‐graphene membrane architecture within lightweight foams. This bioinspired design dramatically enhances multifunctional performance: vibration attenuation time decreases by ∼83.3%, damping capacity increases by ∼179.3%, and compressive modulus rises ...
Jigang Feng, Anhao Li, Babak Safaei, Yun Kong, Yizhen Miao, Zhaoye Qin, Fulei Chu   +6 more
wiley   +1 more source

Air-Side Heat Transfer Performance of Louver Fin and Multi-Tube Heat Exchanger for Fuel-Cell Cooling Application [PDF]

, 2012
The present work is performed to evaluate the heat transfer performance of a heat exchanger used in a fuel cell. Because of material constraints and performance requirements, a louver fin heat exchanger is modified for use with conventional micro-channel
Jacobi, Anthony M., Kang, Hiechan, Kim, Jin Ho, Lee, Minkyoo, Oh, Hyeonsik   +4 more
core   +1 more source

Photo‐Gated Corona Microfluidics

Advanced Science, EarlyView.
Photo‐gated corona microfluidics decouples optical programming from electric‐field actuation to enable reconfigurable manipulation on open, electrode‐pattern‐free surfaces. Near‐infrared irradiation locally melts paraffin, creating a reversible charge‐relaxation pathway that reconstructs the electric field.
Xiaxia Cui, Yiqing Liu, Xinyi Qiu, Manfei Liu, Biao Cheng, Yuan Zhou, Changguo Xue, Sheng Zhang, Xin Tang, Qiang Tang   +9 more
wiley   +1 more source

Analysis of Conjugate Mixed Convection Flow of a Nanofluid Over a Vertical Fin in Porous Media

International Journal of Applied Mechanics and Engineering
This paper presents a detailed study of the interaction between conduction through a vertical fin and conjugate mixed convection of a nanofluid flowing in a porous medium.
Zerrouki Moussa, Najib Mohamed Bouaziz
doaj   +1 more source

Developing Soft Interconnected Microchannel Network for 2D Skin‐Like Actuator

Advanced Science, EarlyView.
A soft interconnected network of microchannels is proposed to develop new pneumatic actuators for future bio‐inspired soft robots. Simultaneous stimulation of this network generates regional asymmetric strains in walls of microchannels whose interaction across the entire surface leads to bending curvatures in multidimensions.
John Noee, Mohammad Akbari, Josephine Perto Justsen, Ulrich Doll, Rassoul Tabassian   +4 more
wiley   +1 more source

Fin de año sin fin

Nómadas, 2005
El artículo refiere a una tragedia ocurrida en Buenos Aires a fines del 2004. Relaciona un segmento del universo del rock local con la falta de respuestas hacia los jóvenes de las instituciones y la sociedad. La semiótica de la cultura y el concepto de texto permite mostrar que las canciones del grupo Callejeros evidencian el deterioro de un sector sin
openaire   +3 more sources