Results 31 to 40 of about 30,102 (295)

Deformation characteristics and safety assessment of a high-speed railway induced by undercutting metro tunnel excavation

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2019
Stratum deformation (settlement) is a challenging issue in tunnel engineering, especially when construction of metro tunnels has to undercut high-speed railway.
Wangping Qian   +4 more
doaj   +1 more source

Estimation of Lateral Track Irregularity Through Kalman Filtering Techniques

open access: yesIEEE Access, 2021
The aim of this work is to develop a model-based methodology for monitoring lateral track irregularities based on the use of inertial sensors mounted on an in-service train.
Sergio Munoz   +3 more
doaj   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

open access: yesAdvanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang   +9 more
wiley   +1 more source

Assessing the Effects of Implementing Railway Technological Innovations on the Competencies of Logistics Specialists

open access: yesPromet (Zagreb)
The level of technological innovation and the efficiency of transport logistics in enterprises principally depend on the resources that are used. The authors aim to develop a new approach to assess the interface between railway innovation implementation ...
Gintautas BUREIKA   +2 more
doaj   +1 more source

Innovative Artificial Intelligence‐Assisted Systems for Social Science Research: Architecture Design and Applied Practice

open access: yesAI &Innovation, EarlyView.
ABSTRACT The rapid advancement of large language model (LLM) technology is profoundly transforming the practice of social science research. Scholarly discussions on Artificial Intelligence (AI)'s role in social science research can be organised into three levels: AI as a research tool, AI as a methodological infrastructure and AI as a quasi‐cognitive ...
Jie Xiong
wiley   +1 more source

The Insistence of Blackness and the Persistence of Antiblackness in Ireland

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT This paper positions Ireland as a critical site for examining the insistence of blackness and an antiblackness created and sustained through Irish ethnonationalist imaginaries and exclusionary processes. Drawing on connected sociologies and Irish Black Studies, this enquiry argues that antiblackness in Ireland operates as a generational force,
Philomena Mullen
wiley   +1 more source

A systematic review of MBSE-based safety analysis techniques in railway systems [PDF]

open access: yesRailway Sciences
PurposeWith the development of railway systems towards intelligence, informatization and networking, their architecture design becomes increasingly complex. Traditional safety analysis methods (such as failure mode and effects analysis (FMEA), fault tree
Jiaxu Chen
doaj   +1 more source

Bond Graph Based Stability Analysis of a Railway Traction System [PDF]

open access: yes, 2005
This paper emphasises the interest of the Bond Graph approach for analysis and system design of heterogeneous and multi-field devices. In particular, the local stability analysis of non linear systems can be directly derived from the linearised Causal ...
Sareni, Bruno   +3 more
core  

Embedding Chemistry and Pharmacy Into Sustainability

open access: yesAngewandte Chemie International Edition, EarlyView.
Chemistry and pharmacy provide products and processes that are indispensable for our high living standard. To understand their relationship with sustainability is important to allow them to contribute to sustainability in a sustainable manner. An integrated overview of green, circular, and sustainable chemistry and pharmacy is given and how they have t
Klaus Kümmerer
wiley   +1 more source

Adaptability of Medium-low Speed Maglev System in City (Suburban) Railway

open access: yesChengshi guidao jiaotong yanjiu
Objective Addressing the current issues of relatively limited system choices, large engineering investment, and high proportion of underground lines, the adaptability of medium-low speed maglev lines in city (suburban) railway is analyzed, and ...
DAI Nengyun   +4 more
doaj   +1 more source

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