Results 51 to 60 of about 5,517 (250)

Research on Fine Operation of Rail Grinding Machine

open access: yes机车电传动, 2017
Rail profile grinding method and profile evaluation index were briefly introduced. Operation ability of the rail grinding machine was identified by test detection and theoretical derivation, and based on the practical application condition, fine ...
LIU Liangbin
doaj  

Transcatheter Repair of Sinus Venosus Defect Using a 12‐zig Covered Cheatham‐Platinum Stent in Large Superior Vena Cava—Right Atrium Junctions: Early Multicenter Experience

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Sinus venosus defect (SVD) is a rare congenital heart anomaly characterised by an abnormal communication between the atria, often associated with partial anomalous pulmonary venous connection (PAPVC). Traditional surgical repair carries significant risks, prompting exploration into less invasive transcatheter approaches.
Alberto Fuensalida   +7 more
wiley   +1 more source

Single Atoms Induced Electron Transfer and Spin Polarization for High‐Performance Asymmetric Supercapacitors

open access: yesCarbon Energy, EarlyView.
Contributed by the introduction of Cu SAs, extra electron transfer, and spin polarization to Cooh can be induced for optimizing electronic structure, contributing to fast electron conduction, enhanced capacitive reactions and accelerated ion diffusion. ABSTRACT Features of low cost and high theoretical capacity render transition metal oxides (TMOs) as ...
Qingjie Lu   +10 more
wiley   +1 more source

Rail Profile Measurement Based on Line-structured Light Vision

open access: yesIEEE Access, 2018
High-speed railway in China has undergone rapid development in recent years. Technology for structure measurement is recognized as an important aspect of steel rail quality inspection.
Peng Zhou, Ke Xu, Dadong Wang
doaj   +1 more source

Contactless Rail Profile Measurement and Rail Fault Diagnosis Approach Using Featured Pixel Counting

open access: yesIntelligent Automation and Soft Computing, 2019
The use of railways has continually increased with high-speed trains. The increased speed and usage wear on the rails poses a serious problem. In recent years, to detect wear and cracks in the rails, image-based detection methods have been developed. In this paper, wears on the surface of railheads are detected by contactless image processing and image
Gulsah Karaduman   +3 more
openaire   +2 more sources

Sustainability‐Oriented Collaborations in Green Energy Markets Formation: A Configurational Analysis of Alliance Management Capabilities and Relational View

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Sustainability‐oriented collaborations are inter‐organisational arrangements where the competencies of multiple companies are pooled together to tackle environmental challenges. These collaborations differ from traditional strategic alliances in that they tackle complex goals amidst greater uncertainties that extend beyond economic performance,
Vittorio Maria Garibbo   +3 more
wiley   +1 more source

Development of micro-ribbed wheel tread profile of railway vehicle for reducing steady lateral force on curve

open access: yesNihon Kikai Gakkai ronbunshu, 2014
It’s generally known that tangential force of wheel/rail interface which depends on a change of coefficient of friction between wheel and rail has a big influence on a steady lateral force of railway vehicle.
Daisuke YAMAMOTO
doaj   +1 more source

Strengthening urban resilience in China through underground infrastructures management: Addressing global climate challenges with technological solutions

open access: yesDeep Underground Science and Engineering, EarlyView.
This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh   +12 more
wiley   +1 more source

Research on the Wheel-rail Matching in High-speed Railway under Different Traction Conditions

open access: yes机车电传动, 2018
In order to study the contact characteristics of the new rail profile and the high-speed EMUs wheel profiles, the profiles matching between LMA, S1002CN, XP55 wheel and 60D, 60N rail in the middle position had been proceeded.
WANG Xueping, ZHANG Jun, MA He
doaj  

Optimization of the target profile for asymmetrical rail grinding in sharp-radius curves for high-speed railways

open access: yesAdvances in Mechanical Engineering, 2017
Asymmetrical rail grinding in sharp-radius curves could reduce the side wear of railheads and enhance curve capacity of rail vehicles. The wheel/rail contact performance and curve capacity could be further improved by the optimization of the asymmetrical
Wei Zeng   +4 more
doaj   +1 more source

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