Results 41 to 50 of about 17,433 (317)

Pinch‐Off Mechanism of High‐Gain Organic Transistors with Field Plates: Statistical Analysis, Device Simulations and Compact Modeling

Advanced Electronic Materials, EarlyView.
Statistical analysis of over 3000 devices reveals a novel operating mechanism in printed organic thin‐film transistors featuring a grounded field plate beneath the source. The field plate governs the low and tunable pinch‐off, enabling excellent current saturation and ultra‐high gain.
Kazuki Ono, Ryota Kobayashi, Eva Bestelink, Radu A. Sporea, Satoru Inoue, Yudai Hemmi, Yuji Ikeda, Tatsuo Hasegawa, Hiroyuki Matsui   +8 more
wiley   +1 more source

A Fault Diagnosis Method for Planetary Gearboxes Based on IFMD

Shock and Vibration
The vibration signal from the planetary gearbox exhibits nonlinear and impulsive characteristics amidst strong noise, impeding the effective extraction of fault information and compromising the accuracy of fault diagnosis.
Fengfeng Bie, Xueping Ding, Qianqian Li, Yuting Zhang, Xinyue Huang   +4 more
doaj   +1 more source

Rail Corrugation Characteristics of Cologne Egg Fastener Section in Small Radius Curve

Shock and Vibration, 2020
By analyzing the measured data of rail corrugation in a small radius curve track with Cologne fasteners, the typical passing frequencies of corrugation were obtained.
Zhiqiang Wang, Zhenyu Lei, Yang Zhao, Yao Xu   +3 more
doaj   +1 more source

Livestock Tango: U.S. and Latin America Dance Together, but Who Will Lead?

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study examines the competitiveness between Latin American and U.S. livestock and meat sectors. We employ a computable general equilibrium modeling framework to evaluate two scenarios: coordinated improvements in Latin American productivity, transport efficiency, and market access (Scenario I), and the minimum productivity gains required ...
Taís C. Menezes, Amanda M. Countryman, Dustin L. Pendell   +2 more
wiley   +1 more source

Vibration Analysis of Traction Drive System Components Based on the Field Test for High-Speed Train

Journal of Advanced Transportation, 2023
The traction drive system of a high-speed train is the key subsystem of a high-speed train, which controls the driving and braking of the train through electromechanical coupling, and determines the running speed, power quality, and comfort of the train.
Pingbo Wu, Chunyuan Song, Xun Wang, Sheng Qu, Hao Wu   +4 more
doaj   +1 more source

Catalyst Layer Modifications for Enhanced Performance of Fluorine‐Free Proton Exchange Membrane Fuel Cells

Advanced Energy and Sustainability Research, EarlyView.
Considerable improvement in the performance of fully‐hydrocarbon‐based fuel cells is necessary to replace and compete with Per‐ and polyfluoroalkyl substances‐containing fuel cells. Herein, a way to enhance the ionic conductivity of the catalyst layer (CL) by incorporating insoluble ionomer particles into the CL is presented.
Emmanuel Balogun, Subash Rajasekar, Spencer Thomas, Ana Laura Gonçalves Biancolli, Torben Saatkamp, Franklin O. Egemole, Simon Cassegrain, Steven Holdcroft   +7 more
wiley   +1 more source

Torque‐Transmitting Architected Metamaterials for Flexible and Extendable Tubular Robotics

Advanced Intelligent Systems, EarlyView.
Soft and continuum robots commonly rely on fluid, tendon, or rod‐based power transmissions, to control robotic form and actuation. This study presents an architected structure, based on patterned straight‐line mechanisms, that enables simultaneous bending, extending, and torsionally rigid (BETR) transmission.
Sawyer Thomas, Aman Garg, Jeffery Lipton
wiley   +1 more source

Shape‐Memory Alloy Torsion Strips for Soft Robotic Manipulation and Morphing

Advanced Intelligent Systems, EarlyView.
In this research, a dedicated configuration of SMA strip is proposed for soft robotic manipulation and morphing. This configuration has broad application prospects and demonstrates remarkable advantages in soft body joint operations. Mimicking invertebrates, soft robots tend to control each of their body joints to achieve the desired shape changes and ...
Changchun Wu, Hao Liu, Senyuan Lin, Yunquan Li, James Lam, Ning Xi, Yonghua Chen   +6 more
wiley   +1 more source

Elastic Fast Marching Learning from Demonstration

Advanced Intelligent Systems, EarlyView.
This article presents Elastic Fast Marching Learning (EFML), a novel approach for learning from demonstration that combines velocity‐based planning with elastic optimization. EFML enables smooth, precise, and adaptable robot trajectories in both position and orientation spaces.
Adrian Prados, Brendan Hertel, Ramon Barber, Reza Azadeh   +3 more
wiley   +1 more source

Incorporating KPIs in the Quantification of Overall Efficiency of Rolling Stock of Railways

Engineering Proceedings
The overall efficiency of the rolling stock of railways can be calculated by taking into account three parameters: availability, performance, and quality.
Qamar Mahboob, Muhammad Aftab Aalam, Sanan Tahir, Zhiwen Wang, Qiyuan Mao, Zidong Tan   +5 more
doaj   +1 more source