Results 111 to 120 of about 1,834,169 (290)

Research on wear and grinding models of high-speed turnouts based on semi-Hertz contact

Scientific Reports
In order to reduce turnout rail wear, the paper establishes a coupled dynamics model and a turnout rail wear model that consider the true profile of the turnout rail, the vehicle’s continuous traction force while passing, and the operational resistance ...
Jincheng Li, Yayun Qi, Pengpeng Wu, Junjun Ding, Haohao Ding   +4 more
doaj   +1 more source

Affordable and Clean Energy: CO2 Emissions, Resilience and Inequality

Sustainable Development, EarlyView.
ABSTRACT Sustainable development means building the resilience of both people and the planet. It includes implementing strategies which reduce emissions while also enabling more vulnerable households to transition to clean and affordable energy. This paper examines household CO2 emissions in Ireland to highlight those who emit most and least in key ...
Nessa Winston, Monika da Silva Pedroso, Ciarán Mac Domhnaill   +2 more
wiley   +1 more source

Assessing Environmental and Economic Performance for Port Hydrogen Fuel Transition: A Case Study of Vancouver Fraser Port Authority

Sustainable Development, EarlyView.
ABSTRACT As society continues to develop, hydrogen has emerged as a promising fuel for maritime decarbonization. This study develops an integrated environmental and economic assessment framework for the Vancouver Fraser Port Authority (VFPA) by combining life‐cycle assessment, levelized cost analysis, and multi‐criteria decision analysis across 36 ...
Ziyu Wang, Xueyan Lin, Chunjiang An
wiley   +1 more source

Ohio and Lake Erie regional rail Ohio hub study

, 2004
Title from cover of PDF document (viewed Oct. 19, 2005).; "October 2004."; Harvested from the web on 10/19/05Engineering assessment and capital cost estimates -- Operating strategies, station locations and fleet requirements -- Travel demand and ...
Ohio Rail Development Commission.
core  

Quantum Machine Learning for Cybersecurity: A Taxonomy and Future Directions

Software: Practice and Experience, EarlyView.
ABSTRACT Context The rapid increase in cyber threats, coupled with increasingly sophisticated attack strategies and the exponential growth of data in recent years, has exposed significant limitations in classical machine learning, rule‐based, and signature‐based defense mechanisms.
Siva Sai, Ishika Goyal, Shubham Sharma, Sri Harshita Manuri, Vinay Chamola, Rajkumar Buyya   +5 more
wiley   +1 more source

Press Hardening for Sustainable Lightweight Chassis Design in Heavy‐Duty Vehicles: A Material Performance and Life Cycle Assessment Approach

steel research international, EarlyView.
The article explores how high‐strength steels and press hardening revolutionize lightweight chassis design for heavy‐duty vehicles. It reveals that press hardened steels combined with shot peening can cut weight by up to 34% and reduce environmental impact by 21%–32%.
Violeta Vargas‐Parra, Sergi Parareda, Jose Jorge Espí‐Gallart, Jaume Pujante, Gustaf Gustafsson, Henrik Sieurin, David Frómeta, Daniel Casellas   +7 more
wiley   +1 more source

Insights Into Paint‐Bake Toughening of Resistance Spot Welds of a 2.0 GPa Warm‐Stamped Medium‐Mn Steel

steel research international, EarlyView.
Paint baking of resistance spot welded joints of 2.0 GPa warm‐stamped medium‐Mn steel activates low‐temperature tempering, forming fine cementite in the fusion zone and enhancing toughness. Crack propagation resistance increases, shifting the failure mode from partial interfacial to complete pullout, with peak load and energy absorption rising ...
Sunusi Marwana Manladan, Savyasachi Nellikode, YeoJin Jang, Sumin Lee, Dileep Chandran Ramachandran, Sung‐bo Heo, Jinyoung Lee, Young‐Kook Lee, Yeong‐Do Park   +8 more
wiley   +1 more source

Effect of Change of Rail Profile on Rolling Contact Fatigue at Wheel-Rail Interface

, 2017
The general objective of this thesis is to analyze effect of change of radiuses curvature of Rail profile on contact fatigue stress using analytic and finite element software’s. The formulation in this study aims primarily at determination of stresses and fatigue parameters by varying contact area arising from variation in radiuses curvature of Rail ...
openaire   +6 more sources

Crash Behavior of DP800–DP1000 Advanced High‐Strength Steel’s Dissimilar Resistance Spot Welded Joints Under Quasi‐static and High Strain Rates

steel research international, EarlyView.
The high‐strain‐rate behavior of resistance spot‐welded DP800–DP1000 joints is investigated. Results show that microstructural gradients across BM–HAZ–FZ govern hardness, strain rate sensitivity, and failure modes. While strength increases with strain rate, energy absorption is controlled by ductility, with DP800–DP800 joints showing superior ...
Pankaj Shrivastava, Velaphi Msomi
wiley   +1 more source

The marginal social cost of road and rail: Implications for rail investment and pricing [PDF]

, 1995
An important issue for transport policy is whether more investment should be devoted to rail schemes and less to road schemes and vice versa. This raises the problem of comparing the returns from investments in the two modes currently assessed on a ...
Al-Tony, Fathy El-Sayed
core   +1 more source