Results 81 to 90 of about 8,361,162 (295)

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

A Physics- and Data-Driven Study on the Ground Effect on the Propulsive Performance of Tandem Flapping Wings

Aerospace
In this paper, we present a physics- and data-driven study on the ground effect on the propulsive performance of tandem flapping wings. With numerical simulations, the impact of the ground effect on the aerodynamic force, energy consumption, and ...
Ningyu Duan, Chao Wang, Jianyou Zhou, Pan Jia, Zheng Zhong   +4 more
doaj   +1 more source

Propulsive Performance of a 1 N 98% Hydrogen Peroxide Thruster

, 2015
The present article reports the results of a test campaign performed on a 1 N monopropellant thruster powered by 98% Hydrogen Peroxide. The test campaign comprises firings at different feeding pressures and catalytic bed temperatures. The catalytic bed
Lucio Torre, Angelo Pasini, Torre, Lucio, Giovanni Pace, PASINI, ANGELO, PACE, GIOVANNI   +5 more
core   +1 more source

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

Advanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang, Jimin Fu, Gesa Zhang, Zhihua Liang, Boxun Zhang, Haimin Yao   +5 more
wiley   +1 more source

Modeling and Dynamics of HTS Motors for Aircraft Electric Propulsion

Aerospace, 2018
In this paper, the methodology of how a dynamic model of a conventional permanent magnet synchronous motor (PMSM) may be modified to model the dynamics of a high-temperature superconductor (HTS) machine is illustrated.
Ranjan Vepa
doaj   +1 more source

Estimate of propulsive force in front crawl swimming in young athletes

, 2012
Marcos André Moura dos Santos,1 Marcos Lira Barbosa Junior,1 Wilson Viana de Castro Melo,1 Adalberto Veronese da Costa,2,3 Manoel da Cunha Costa11Evaluation of Human Performance Laboratory, Faculty of Physical Education, University of ...
Veronese da Costa A, Melo WV, Barbosa Jr ML, Costa MC, Santos MA   +4 more
core  

Biointegrated Battery‐Based Electroceuticals

Advanced Materials, EarlyView.
Biointegrated batteries go beyond passive power to serve as active therapeutic platforms for delivering programmable electrical cues and bioactive agents. This review examines their mechanisms and applications and provides a framework to guide battery‐based therapeutic design and clinical translation.
Yan Zhou, Zhilian Yue, Zhiqi Chen, Danming Chao, Xiaoteng Jia, Gordon Wallace, Caiyun Wang   +6 more
wiley   +1 more source

Propulsive force asymmetry during tethered-swimming

, 2013
This study aimed to determine whether: i) tethered-swimming can be used to identify the asymmetry during front crawl swimming style; ii) swimmers that perform unilateral breathing present greater asymmetry in comparison to others that use bilateral ...
Dos Santos, K. B., Bento, P. C B, Papoti, M. [UNESP], Pereira, G., Rodacki, A., Papoti, M.   +5 more
core   +1 more source

Bioinspired Adaptive Surfaces for Intelligent Liquid Manipulation: Progressing From Passive and Active to Hybrid Strategies

Advanced Materials, EarlyView.
This review examines passive, active, and hybrid liquid manipulation strategies, highlighting hybrid approaches as an emerging route to reconcile energy efficiency with adaptive control. By actively reconstructing passive surfaces to store programmable interfacial energy, hybrid systems enable flexible yet low‐power liquid transport, with perspectives ...
Jiaqi Miao, Yiyuan Zhang, Liqiu Wang, Alan C. H. Tsang   +3 more
wiley   +1 more source

Predicting powering performance changes for ships in offshore conditions from small design modifications

This paper addresses the prediction of ship performance in waves by means of RANS-based CFD. Lately, much attention has been given to modelling the complex geometry (moving hull and rotating propeller) which can sometimes distort or suppress the ...
Winden, B., Hudson, D.A., Turnock, S.R.
core   +1 more source