Results 111 to 120 of about 128,052 (293)

Stacking‐Engineered Magnonic Topology and Transport in Honeycomb Homobilayers

Advanced Functional Materials, EarlyView.
ABSTRACT Topological magnons have emerged as a promising platform for dissipationless bosonic transport. However, a straightforward and effective strategy to engineer such topological states in real materials has yet to be fully realized. Here, a general scheme for controlling magnonic topological states via stacking engineering in van der Waals ...
Xiaoran Feng, Yingxi Bai, Bo Yuan, Ying Dai, Baibiao Huang, Chengwang Niu, Xiaotian Wang   +6 more
wiley   +1 more source

Development of Electro-Mechanical Actuator for Wheel Steering of Railway Vehicles

Actuators
We developed an electro-mechanical actuator for use as a steering device for railway vehicles. The specifications for a 50 kN-class electro-mechanical actuator capable of steering control for a sharp of a railway radius curve of up to 250 m, and with ...
Hyun Moo Hur, Jung Won Seo, Kyung Ho Moon, Jong Hyun Choi   +3 more
doaj   +1 more source

Spacecraft attitude control for a solar electric geosynchronous transfer mission [PDF]

A study of the Attitude Control System (ACS) is made for a solar electric propulsion geosynchronous transfer mission. The basic mission considered is spacecraft injection into a low altitude, inclined orbit followed by low thrust orbit changing to ...
Leroy, B. E., Regetz, J. D., Jr.
core   +1 more source

AZIPOD Propeller Blade Cavitation Observations During Ship Maneuvering [PDF]

, 2001
This paper presents results of observations of full-scale propeller blade cavitation patterns carried out on the Elation passenger cruiser, the very first ship equipped with AZIPOD electric thrusters. It offers descriptions of test conditions, cavitation
Kaprantsev, Sergey, Pustoshny, Alexander
core  

Driver torque estimation in Electric Power Steering system using an H ∞ /H 2 Proportional Integral Observer

, 2015
International audienceThis paper deals with the design of a Proportional Integral (PI) observer to estimate the driver torque in an Electric Power Steering (EPS) system.
Koenig, Damien, Moulaire, Pascal, Sename, Olivier, Yamamoto, Kazusa   +3 more
core   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Baseline tests of the C. H. Waterman DAF electric passenger vehicle [PDF]

An electric vehicle was tested as part of an Energy Research Development Administration (ERDA) project to characterize the state-of-the-art of electric vehicles. The Waterman vehicle performance test results are presented in this report. The vehicle is a
Maslowski, E. A., Sargent, N. B., Schuh, R. M., Soltis, R. F.   +3 more
core   +1 more source

Quasi‐Static to Supersonic Energy Absorption of Nanoarchitected Tubulanes and Schwarzites

Advanced Functional Materials, EarlyView.
Nanoarchitected energy‐absorptive Tubulanes exhibit record energy absorption under quasi‐static conditions and exceptional inelastic energy dissipation under 750 m s−1 ballistics impact, with high performance spanning strain rates of 12 orders of magnitude.
Peter Serles, Alianna Maguire, Thomas Butruille, Jet Lem, Shuo Yang, Pedro Guerra Demingos, Sahar Choukir, Michel Haché, Boran Kumral, Katherine Jia, Charles Jia, Yu Zou, Chandra Veer Singh, Carlos M. Portela, Jun Lou, Pulickel M. Ajayan, Tobin Filleter   +16 more
wiley   +1 more source

Research on the Structure, Design, and Control of a Variable Transmission Ratio for Active Steering Systems in Commercial Vehicles

World Electric Vehicle Journal
In this paper, a variable gear ratio for active steering systems with a double planetary gear configuration is presented to optimize the steering performance of commercial vehicles.
Yingkai Ma, Zhijun Fu, Xiang Zhang, Dengfeng Zhao   +3 more
doaj   +1 more source

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

Advanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source