Results 61 to 70 of about 21,361 (314)

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

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

Evaluating new start transit program performance: Comparing rail and bus [PDF]

, 2006
This study by Lyndon Henry and Todd Litman compares public transit performance between U.S. cities that expanded rail systems and those that expanded bus systems. There is ongoing debate over the relative advantages of rail and bus transit investments.
Litman, Todd, Henry, Lyndon
core  

Current‐Driven Li2O Formation in Catalyst‐Free Solid‐State Li‐O2 Batteries Enabling Simultaneous High Energy and High Power

Advanced Energy Materials, EarlyView.
A catalyst‐free solid‐state Li‐O2 battery achieves current‐driven four‐electron Li2O formation, delivering simultaneous high‐energy and high‐power operation with 1032 Wh·kg−1 and 374 W·kg−1 in a single cell. ABSTRACT Li‐O2 batteries offer a compelling pathway toward next‐generation energy storage owing to their ultrahigh theoretical energy density ...
Shu‐Ting Ko, Ziting Ma, Cruz Gonsalves, Joseph Degroot, Chuck Chunhu Tan, Timothy Lin, Cauê Nogueira, Xin Xu, Chunting Chris Mi, Lingping Kong   +9 more
wiley   +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

When the River Runs Low: Heterogeneous Impacts of Transportation Disruptions on Local Grain Basis

Agribusiness, EarlyView.
ABSTRACT A substantial share of U.S. soybean and corn exports from the Midwest moves by barge along the Mississippi River system to export terminals in the Louisiana Gulf. Transportation costs between Midwestern grain elevators and export terminals create a wedge between prices at these locations, and shocks to these costs are partially passed on to ...
Yuan Zhang, Andrew E. Anderson, Nicholas J. Pates, Eunchun Park   +3 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

Implantation‐On‐Chip: An AI‐Based Platform for Monitoring the Embryo Trophoblast–Endometrial Stroma Cross Talk With Xenobiotics Interference

Advanced Intelligent Systems, EarlyView.
We present a novel AI‐integrated implantation‐on‐chip platform that enables mimicking and monitoring the maternal–fetal interactions at the early phases of human embryo implantation with high spatiotemporal resolution. The complexity of the trophoblast invasion process was addressed by conducting the analysis at global (rate of invasion) and local ...
Joanna Filippi, Valentina Lacconi, Arianna Mencattini, Micol Massimiani, Dolores Lobresca, Gaia Posanzini, Alessia Riccardi, Paola Casti, Michele D’Orazio, Gianni Antonelli, Giorgia Curci, Luisa Campagnolo, Eugenio Martinelli   +12 more
wiley   +1 more source

Intermodal Transfer Between Bicycles and Rail Transit in Shanghai, China [PDF]

, 2010
Large cities in China are building rail transit systems as part of a key strategy to address their pressing urban transportation problems. Because the high construction cost of subways and light rail limits the network density of rail transit, urban ...
Qing Shen, Xue, Song, Pan, Haixiao, Song Xue, Haixiao Pan, Shen, Qing   +5 more
core   +1 more source

Design and Characterization of a Dual‐Mode Soft Robotic Flapping Propeller With Pneumatic Stiffness Modulation

Advanced Intelligent Systems, EarlyView.
A novel soft robotic propeller overcomes traditional efficiency‐flexibility tradeoffs via a hybrid pneumatic‐cable actuation strategy. This architecture enables active stiffness modulation with dual‐mode locomotion: tunable biomimetic swimming and earthworm‐inspired wriggling for confined spaces.
Jiazi Geng, Hua Shao, Yiyang Li, Lin Liang, Jinfeng Yang, Xianhong He, Fengran Xie   +6 more
wiley   +1 more source