Results 101 to 110 of about 215,155 (301)

An Observational Estimate for the Mean Secular Evolution Rate in Spiral Galaxies

, 2010
We have observationally quantified the effect of gravitational torques on stars in disk galaxies due to the stellar distribution itself and explored whether these torques are efficient at transporting angular momentum within a Hubble Time.
Abazajian, Athanassoula, Barazza, Barden, Bell, Berentzen, Bertin, Bertin, Binney, Bosma, Bosma, Bournaud, Bournaud, Bruzual, Buta, Cayatte, Courteau, Courteau, Courteau, Curir, De Vaucouleurs, Debattista, Debattista, Dutton, Elmegreen, Foyle, Frei, Gnedin, Governato, Haan, Hans-Walter Rix, Hunt, Jarrett, Jogee, Kelly Foyle, Knapen, Knapen, Kormendy, Kranz, Lin, Lynden-Bell, Marinova, Merrifield, Navarro, Navarro, Navarro, Pasha, Pasha, Peng, Pérez, Rix, Roškar, Sancisi, Schneider, Sellwood, Sellwood, Sellwood, Sheth, Sofue, Somerville, Sparke, Springel, Springel, Stefano Zibetti, Tamburro, Thacker, Tully, Valenzuela, Van Der Kruit, Verdes-Montenegro, York, Zhang, Zhang, Zhang, Zibetti   +74 more
core   +1 more source

4D‐Printed Magneto‐Plasmonic Microrobots for Programmable Spatiotemporal De‐Icing

Advanced Functional Materials, EarlyView.
A 4D‐printing strategy is introduced to achieve programmable de‐icing devices. By aligning gold–magnetite nanofillers within a photosensitive resin, the printed structures exhibit dual magnetic and plasmonic functionalities, enabling precise spatio‐temporal ice removal through thermoplasmonic effects.
Amélie Pérot, Andrea Cosola, Eléonore Aïdonidis, Jérôme Fresnais, Clément Sanchez, Philippe Belleville, Giancarlo Rizza, Marco Faustini   +7 more
wiley   +1 more source

Contrastive Study on Torque Distribution of Distributed Drive Electric Vehicle under Different Control Methods

Journal of Control Science and Engineering, 2017
This paper uses certain hub motor distributed electric vehicle driving system as the research object, using several control strategies, such as dynamic programming global optimization algorithm, fuzzy control, and torque equal distribution and realizing ...
Xiao-gang Wu, Dian-yu Zheng
doaj   +1 more source

Trifluoromethoxylated Electron Acceptor Enabling Ternary Organic Solar Cells with over 20% Power Conversion Efficiency

Advanced Functional Materials, EarlyView.
ABSTRACT In this work, we introduce a trifluoromethoxy (OCF3) group as a pseudo‐halogen terminal group design for non‐fullerene acceptors, which combines strong inductive electron‐withdrawing ability with moderate resonance donation. The as‐synthesized BTP‐OCF3, when benchmarked against its methoxy analogue BTP‐OCH3, demonstrates narrowed bandgap ...
Chunliang Li, Anhai Liang, Shuwei Qiu, Gavin Ho Ming Ng, Aleksandr Sergeev, Joshua Yuk Lin Lai, Bosen Zou, Xianghao Zeng, Jicheng Yi, Hongxiang Li, Junpo Guo, Wei Liu, Jia Yao, Kam Sing Wong, Zhipeng Kan, Sai Ho Pun, He Yan   +16 more
wiley   +1 more source

Development of Drive Control Strategy for Front-and-Rear-Motor-Drive Electric Vehicle (FRMDEV) [PDF]

, 2018
In order to achieve both high-efficiency drive and low-jerk mode switch in FRMDEVs, a drive control strategy is proposed, consisting of top-layer torque distribution aimed at optimal efficiency and low-layer coordination control improving mode-switch ...
Gao, S. (Song), Ge, W. (Wenqing), Li, B. (Bo), Sun, B. (Binbin), Wang, Y. (Yongjun)   +4 more
core  

Algorithmic Design of Disordered Networks With Arbitrary Coordination: Application to Biophotonics

Advanced Functional Materials, EarlyView.
Predictive Design of Disordered Networks: Disordered network‐like morphologies are abundant in nature, from cytoskeletal networks to bone structures and chalcogenide glasses. These structures are naturally hard to characterize. A new algorithmic tool extends the established Wooten–Weaire–Winer (WWW) algorithm to valencies above 4.
Florin Hemmann, Vincent Glauser, Ullrich Steiner, Matthias Saba   +3 more
wiley   +1 more source

Energy Control Strategy of HEB Based on the Instantaneous Optimization Algorithm

IEEE Access, 2017
In order to solve the problems of high gas consumption and low battery power in hybrid electric buses, the logic threshold control strategy is optimized by the key technology research of driving conditions, control strategy, and so on.
Dapai Shi, Liang Chu, Jianhua Guo, Guangdong Tian, Yixiong Feng, Zhiwu Li   +5 more
doaj   +1 more source

A Bhatnagar-Gross-Krook-like Model Kinetic Equation for a Granular Gas of Inelastic Rough Hard Spheres

, 2011
The Boltzmann collision operator for a dilute granular gas of inelastic rough hard spheres is much more intricate than its counterpart for inelastic smooth spheres.
Santos, Andrés
core   +1 more source

Dual‐Programmable Architected Magnetic Soft Materials: Tuning Mechano–Electric Responses by Inverse Design

Advanced Functional Materials, EarlyView.
ABSTRACT Materials that can deform, sense, and autonomously generate power in response to wireless magnetic fields, through both magnetic‐actuated shape transformation and charge generation, are an emerging focus in advanced functional materials research.
Zhi Zhao, Xiaojia Shelly Zhang
wiley   +1 more source

Direct Yaw Moment Control for Distributed Drive Electric Vehicles Based on Hierarchical Optimization Control Framework

Mathematics
Direct yaw moment control (DYC) can effectively improve the yaw stability of four-wheel distributed drive electric vehicles (4W-DDEVs) under extreme conditions, which has become an indispensable part of active safety control for 4W-DDEVs.
Jie Hu, Kefan Zhang, Pei Zhang, Fuwu Yan
doaj   +1 more source