Results 41 to 50 of about 12,501 (266)

Rail surface defect data enhancement method based on improved ACGAN

Frontiers in Neurorobotics
Rail surface defects present a significant safety concern in railway operations. However, the scarcity of data poses challenges for employing deep learning in defect detection.
He Zhendong, Gao Xiangyang, Liu Zhiyuan, An Xiaoyu, Zheng Anping   +4 more
doaj   +1 more source

Concept of the railway safety, security and cybersecurity functional integrity levels [PDF]

MATEC Web of Conferences, 2019
Observed growing changes in the character and severity of the risks in rail traffic safety and rail transport security are associated with present development of utilized technical solutions.
Pawlik Marek
doaj   +1 more source

Synergistic Effects of Additive Engineering in Enhancing the Performance of Sn–Pb Perovskite Thin‐Film Transistors and Derived Logic Circuits

Advanced Science, EarlyView.
An additive engineering strategy employing 4,8‐dihydrobenzo[1,2‐b:4,5‐b′]dithiophen‐4,8‐dione (BDTD) is utilized to passivate bulk defects, regulate crystallization dynamics, and suppress Sn4+ formation in Sn–Pb perovskite thin‐film transistors. The incorporation of BDTD yields a substantial enhancement in electrical performance, increasing the hole ...
Zeeshan Alam Ansari, Abhishek Kumar, Soumallya Banerjee, Chintam Hanmandlu, Anjali Thakran, Yu‐Te Chen, Po‐Yu Yang, Shenghan Li, Chun‐Wei Pao, Yun‐Chorng Chang, Chu‐Chen Chueh, Chih‐Wei Chu   +11 more
wiley   +1 more source

Oxide Semiconductor Thin‐Film Transistors for Low‐Power Electronics

Advanced Science, EarlyView.
This review explores the progress of oxide semiconductor thin‐film transistors in low‐power electronics. It illustrates the inherent material advantages of oxide semiconductor, which enable it to meet the low‐power requirements. It also discusses current strategies for reducing power consumption, including interface and structure engineering.
Shuhui Ren, Qi Huang, Dingwei Li, Saisai Wang, Yitong Chen, Huihui Ren, Yan Wang, Yingjie Tang, Bowen Zhu   +8 more
wiley   +1 more source

Urban Rail Transit Provides the Necessary Access to a Metropolitan Area: A Case Study of Portland, Oregon, USA

Urban Rail Transit, 2018
Access to good public transit for low-socioeconomic communities has been an important concern in transportation planning and urban studies research.
Seunghoon Oh, Xinhao Wang
doaj   +1 more source

Comparative Study of Wheel–Rail Contact Impact Force for Jointed Rail and Continuous Welded Rail on Light-Rail Transit

Applied Sciences, 2020
In this study, the measured track impact factor induced by the wheel–rail contact impact force of each test section (two continuous welded rails on slab tracks and rail joint on a ballasted track) was compared with the design track impact factor under ...
Jung-Youl Choi, Sang-Won Yun, Jee-Seung Chung, Sun-Hee Kim   +3 more
doaj   +1 more source

Data‐Driven Design and Fabrication of Heat‐Resistant, Ultrastrong, Lightweight Aluminum‐Based Entropy Alloy by Additive Manufacturing

Advanced Science, EarlyView.
A data‐driven strategy integrating quantum machine learning (QML) and high‐throughput computing overcomes hot‐cracking limitation to design a novel lightweight aluminum‐based entropy alloy for additive manufacturing. The fabrication transforms brittle intermetallics into deformable hierarchical nanostructures, yielding ultrastrong strength (>1 GPa) and
Enmao Wang, Chao Ding, Danyang Zhou, Chenjin Xu, Swee Leong Sing, Jianzhong Jiang, Huibin Wu   +6 more
wiley   +1 more source

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

Parametric Study on the Effect of Rail Dampers on Track Decay Rate

Applied Sciences
Track decay rate (TDR), meaning the rate of attenuation of bending waves through the rail, is the most important indicator of a track’s dynamic characteristic impacting the rail noise emission.
Dorina Fologea, Traian Mazilu, Marius-Alin Gheți, Ioana-Izabela Apostol   +3 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