Results 91 to 100 of about 234,122 (303)

Motion planning and control of an installation robot for attitude adjustment of arc parts in underground shield tunneling

Deep Underground Science and Engineering, EarlyView.
Inspired by spiders, the multilegged walk‐through assembling robot for arc parts achieves high‐precision synchronous control under heavy loads through dual‐layer hydraulic pose dynamics modeling and hierarchical pressure optimization, significantly enhancing shield tunneling assembly efficiency and precision.
Quan Xiao, Guofei Xiang, Liang Liao, Lai Wei, Hongli Wang, Songyi Dian   +5 more
wiley   +1 more source

RAILWAY TRANSPORT RISK MANAGEMENT AND INSURANCE

Financial and credit activity problems of theory and practice, 2018
The article considers and analyzes railway transport risks. The general risk classification related to the passenger traffic has also been improved. In addition, for more sophisticated study of risk management and insurance issue, the features of railway transport insurance have been identified; the rules of railway transport voluntary insurance of ...
Matusevich, O., Matusevych, O., Bobyl, V., Chornovil, O.   +3 more
openaire   +3 more sources

Seismic analysis and design of tunnels within fault ground: A review

Deep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang, Yujing Jiang, Xuepeng Zhang, Yuyong Jiao, Ningbo Li, Xiao Wang, Bo Li   +6 more
wiley   +1 more source

Integrated approach to the planning of energy consumption by non-traction railway consumers

MATEC Web of Conferences, 2018
Non-traction railway load consumes a significant amount of electricity. Russian Railways supplies electricity not only to its structural units but also to other consumers.
Galkin Alexander, Kovalev Alexey, Shayuhov Timur   +2 more
doaj   +1 more source

Necessity and effects of dynamic systems for railway wheel defect detection [PDF]

, 2012
State of railway vehicles highly influences transport safety due to vehicle derailments and in the same time worsens the quality of freight and passenger transportation.
G. Stojić, I. Tanackov, J. Tepić, S. Vesković, Ž. Đorđević   +4 more
core  

Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source

Announcement Signals and Automatic Braking Using Virtual Balises in Railway Transport Systems. [PDF]

Sensors (Basel), 2022
Santiso E, Jiménez JA, Mazo M, Losada C, Rodríguez FJ.   +4 more
europepmc   +1 more source

Bridging Cross‐Scale Science–Policy Interfaces for Coherent Land‐Use Governance: Knowledge Co‐Production and Uptake in Kenya's Polycentric System

Environmental Policy and Governance, EarlyView.
ABSTRACT Land is fundamental to livelihoods and ecosystem health but faces mounting pressure from human activities, climate change, and competing development demands. Science–policy interfaces (SPIs)—platforms that connect experts and policymakers—are vital for co‐producing knowledge to inform coherent, sustainable land‐use governance.
Sara Velander, Lisa Biber‐Freudenberger   +1 more
wiley   +1 more source

Development of a methodology for transitioning from a spectral equation relative to a spatial variable to a differential equation relative to a spectral parameter in the Sturm-Liouville problem for a one-dimensional periodic two-layer photonic crystal

Вісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка
Relevance. In connection with solving the problem of scattering of electromagnetic waves (diffraction problem) on objects such as photonic crystals (one-dimensional periodic unbounded), it is important to study the dispersion relation.
O. V. Kazanko, O. E. Penkina, O. V. Golovko   +2 more
doaj   +1 more source

3D modelling and simulation of the dispersion of droplets and drops carrying the SARS-CoV-2 virus in a railway transport coach. [PDF]

Sci Rep, 2022
Armand P, Tâche J.
europepmc   +1 more source