Results 51 to 60 of about 86,507,712 (301)

Design and Research of Dynamic Detection System for Medium-Low Speed Maglev Contact Rail

Chengshi guidao jiaotong yanjiu
［Objective］ Contact rail is an important component in maglev rail transit system engineering, providing safe and reliable electrical energy for medium-low speed maglev trains.
TU Jun, ZHOU Wenwu, SU Kuan, YUAN Wei
doaj   +1 more source

Research on Miniature Calibre Rail-Guns for the Mechanical Arm

MATEC Web of Conferences, 2017
Rail-gun should not only be used to military applications, but also can be developed as applications in the civilian aspects of the market. With the development of the electromagnetic launch technology, based on the similarity theory, using the existing ...
Ronggang Cao, Guangwei Zhang, Ming Su
doaj   +1 more source

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

Research on Real-time Wheel-rail Force Identification Network of Rail Transit under Compound Line Conditions

Chengshi guidao jiaotong yanjiu
Objective Wheel-rail force plays an important role in the study of train running state, wheel off roundness and rail corrugation in rail transit. Current wheel-rail force identification methods have some problems, such as difficulty in data collection ...
ZHANG Zeteng, WANG Jinhai, YANG Jianwei, YAO Dechen   +3 more
doaj   +1 more source

A New Rail-to-Rail Second Generation Voltage Conveyor [PDF]

Electronics, 2019
In this paper, a novel low voltage low power CMOS second generation voltage conveyor (VCII) with an improved voltage range at both the X and Z terminals is presented. The proposed VCII is formed by a current buffer based on a class AB regulated common-gate stage and a modified rail-to-rail voltage buffer. Spice simulation results using LFoundry 0.15 μm
Barile G., Stornelli V., Ferri G., Safari L., D'Amico E.   +4 more
openaire   +1 more source

Bio‐Inspired Bidirectional Winding Origami With Programmable Modular Reconfigurability and Scalability

Advanced Science, EarlyView.
A bio‐inspired bidirectional‐winding origami platform enables scalable and programmable deployable structures. Double axial folding inspired by earwig hindwings and Flasher‐based hybridization create modular multilayer architectures with diverse attainable winding angles under fixed boundary conditions.
Wenyao Zhang, Chunlong Wang, Mingli Liu, Chuang Shi, Hongwei Guo, Rongqiang Liu   +5 more
wiley   +1 more source

Selective Polarity Control of Metal Oxide Semiconductors for Complementary Logic Gates

Advanced Science, EarlyView.
A scalable electrochemical doping strategy enables in situ p‐to‐n polarity conversion in tin oxide (SnO) thin films using electrolyte gating. Both the pristine p‐type SnO transistor and the electrochemically converted n‐type SnO2 transistor exhibited noticeable and stable electrical performance.
Dong Hyun Park, Seung Ho Ryu, Min Su Kim, Taek‐Mo Chung, Seong Keun Kim, In‐Hwan Baek, Keun Hyung Lee   +6 more
wiley   +1 more source

A Novel Approach To Modelling And Simulation Of The Dynamic Behaviour Of The Wheel-Rail Interface [PDF]

, 2011
This paper presents a novel approach to modelling and simulation of the dynamic behaviour of rail-wheel interface. The proposed dynamic wheel-rail contact model comprises wheel-rail geometry and efficient solutions for normal and tangential contact ...
Gu, Fengshou, Pislaru, Crinela, A. Anyakwo, A. Ball, Gu, F., Anyakwo, A., F. Gu, Anyakwo, Arthur, C. Pislaru, Pislaru, C., Ball, Andrew, Fengshou, Gu, Ball, A.   +12 more
core   +2 more sources

Nanoparticle‐Mediated Bubble Suppression During Droplet Solidification for Mechanical Reinforcement

Advanced Science, EarlyView.
Nanoparticles mediate droplet solidification by raising nucleation temperature, refining dendrites, and slowing freezing‐front advance, thereby suppressing trapped air bubbles in droplet‐based 3D printing. This strategy reduces bubble volume fraction by ∼35% and increases compressive strength by up to 39%, offering a low‐cost route to stronger printed ...
Runmiao Gao, Xuan Zhang, Mengjie Song, Ronggui Yang, Keke Shao, Jun Shen, Long Zhang, Shuhuai Yao, Yubing Guo, Ruzhu Wang, Christopher Yu Hang Chao   +10 more
wiley   +1 more source

’A Poll Tax on Wheels’: Might the move to Privatise Rail in Britain have Failed? [PDF]

, 2010
Rail privatisation was a controversial, widely unpopular policy whose implementation was not inevitable. This article employs counterfactual history methodology to examine whether the move to rail privatisation in Britain might have failed. It places the
Jupe, Robert E., Robert Jupe
core   +1 more source