Results 31 to 40 of about 1,834,169 (290)

Rail Profile Matching Assessment and Selection for Sharp Radius Curves in Urban Metro: A Case Study

Urban Rail Transit
Urban rail transit systems contain numerous sharp radius curves where rail fatigue defect occurs frequently. In severe cases, this leads to extensive rail scaling, rail surface fatigue cracks, and intensified wheel-rail vibration and noise.
Bolun An, Wei Lu, Fengshou Liu, Hao Liu, Yang Xu, Sen Wang   +5 more
doaj   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source

Research on Rail Grinding Technology of Medium and Low Speed Based on Specific Grinding Energy

机车电传动, 2021
In order to improve the efficiency of rail grinding, according to the existing machining and grinding principles of machine tools and the calculation method of high-speed cutting specific grinding energy, the application research of precision control ...
Jie LIU, Tao ZHENG
doaj  

A novel prediction method for rail grinding profile based on an interval segmentation approach and accurate area integral with cubic NURBS

Advances in Mechanical Engineering, 2020
Rail grinding profile prediction in different grinding patterns is important to improve the grinding quality for the rail grinding operation site.
Huan Xie, Xiang Chen, Wei Zeng, Wensheng Qiu, Tao Ren   +4 more
doaj   +1 more source

A Universal van der Waals Tunneling Injector for Monolayer CMOS

Advanced Materials, EarlyView.
A universal van der Waals injector unlocks polarity‐flexible tunneling contacts for monolayer CMOS. SnSe2, an intrinsically degenerate 2D semiconductor, establishes polarity‐specific band alignments with both WSe2 and MoS2 channels, enabling steep switching, high on/off ratios, and a unified route to low‐power 2D logic.
Hanbin Cho, Jing Huang, Seonguk Yang, Subin Im, Sangwoo Park, Jeongin Yeo, Sungyeon Kim, Gilhwan Do, Wenxuan Zhu, Soobeom Shin, Jongwon Lee, Yongjoon Shin, Do‐Sun Lee, Hu Young Jeong, Tae‐Eon Park, Jun Kang, Kyungmin Ko, Joonki Suh   +17 more
wiley   +1 more source

Analysis and Remediation Strategies for Rail Profile-induced Train Hunting Instability in Rail Transit Turnout Area

Chengshi guidao jiaotong yanjiu
[Objective] Causes for train hunting instability in rail transit turnout areas are complex, usually related to turnout irregularity, vehicle state, wheel-rail relationship and other factors, seriously affecting driving comfort and threaten driving safety.
CHEN Dalei
doaj   +1 more source

Effects of profile wear on wheel–rail contact conditions and dynamic interaction of vehicle and turnout

Advances in Mechanical Engineering, 2016
Severe wear is a common damage mechanism in railway turnouts, which strongly affects the dynamic performance of railway vehicles and maintenance costs of tracks.
Jingmang Xu, Ping Wang, Li Wang, Rong Chen   +3 more
doaj   +1 more source

Controlled Growth of Boron Nitride in Various Phases

Advanced Materials Interfaces, EarlyView.
Phase‐selective boron nitride growth is presented as a unified materials‐design problem across hexagonal, rhombohedral, cubic, and amorphous phases. By linking synthesis routes to thermodynamic stability, kinetic accessibility, surface diffusion, interfacial templating, and energetic activation, this review clarifies how bonding and stacking are ...
Pan Wu, Kanghao Xie, Jiajie Qi, Xiaorui Zheng, Kaihui Liu, Xuedong Bai, Li Wang   +6 more
wiley   +1 more source

A study on the modelling for predicting worn profile of rail with multi-body dynamics and the verifying the validity

Nihon Kikai Gakkai ronbunshu, 2017
In recent years, railway system is attracting attention in terms of energy efficiency and environment friendliness. Rail of railway is one of the most important elements in constructing railway system.
Masahiro TSUJIE, Ariku YOSHIOKA, Yuki MIZUTANI, Yoshiaki TERUMICHI   +3 more
doaj   +1 more source

3D Printed Photon Shield Assembly for Low‐Noise Visual Stimulation During Two‐Photon Imaging in Mice

Advanced Materials Technologies, EarlyView.
We present the Photon Shield, an open‐hardware system for low‐noise two‐photon calcium imaging during visual stimulation in mice. Combining a 3D‐printed headplate and rail‐mounted shield substantially reduces stray‐light contamination, as quantitatively verified. Functional validation confirms reliable cortical responses. Open design files enable broad
Gergely Katona, Andrea Slézia, András Dávid, Ábel Petik, Dániel Hillier, István Ulbert, Attila Kaszás   +6 more
wiley   +1 more source