Results 71 to 80 of about 6,330 (209)

Development of Analytical Solutions and Verification Experiments for Axially Restrained Reinforced Concrete Beams in a Fire

Buildings
Fire-induced structural failure in axially restrained reinforced concrete (RC) beams is a critical concern in structural fire engineering. Comparative analysis with Eurocode and ASTM E119 fire safety guidelines reveals discrepancies between theoretical ...
Seungjea Lee, Daehoi Kim, Heewon Seo, Jeonguk Kim, Sungho Hong   +4 more
doaj   +1 more source

Prime ideals in certain quantum determinantal rings [PDF]

, 1998
The ideal I generated by the 2x2 quantum minors in the algebra A = O_q(M_{m,n}(k)) (the quantized coordinate algebra of mxn matrices) is investigated. Analogues of the First and Second Fundamental Theorems of Invariant Theory are proved.
Goodearl, K. R., Lenagan, T. H.
core   +1 more source

Passenger Flow‐Aware Train Scheduling Model for Minimising Energy Consumption in Urban Rail Systems

IET Intelligent Transport Systems, Volume 20, Issue 1, January/December 2026.
This study proposes a dynamic‐programming (DP)‐based train scheduling framework that models the interaction among passenger flow, train mass, and energy consumption, enabling energy‐efficient operation under time‐varying demand. Case studies on a real metro line show that the method reduces energy consumption by up to 10.8% while maintaining transport ...
Haoran Geng, Zhongbei Tian, Masafumi Miyatake, Deshi Kong, Qian Xu   +4 more
wiley   +1 more source

Action-driven Reinforcement Learning for Improving Localization of Brace Sleeve in Railway Catenary

2020 International Conference on Sensing, Measurement & Data Analytics in the era of Artificial Intelligence (ICSMD), 2020
Brace Sleeve (BS) plays an essential role in connecting and fixing cantilevers of railway catenary systems. It needs to be monitored to ensure the safety of railway operations. In the literature, image processing techniques that can localize BSs from inspection images are proposed.
Zhong, J. (author), Liu, Zhigang (author), Wang, H. (author), Liu, W. (author), Yang, Cheng (author), Nunez, Alfredo (author)   +5 more
openaire   +3 more sources

Active Power Filter‐Based Low‐Frequency Ripple Power Suppression of the DC‐Link in Railway Traction Systems

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
This article presents an active power filtering control method to suppress ripple power in the DC‐link of railway traction systems, including both the inherent second‐order ripple of single‐phase rectifiers and additional frequency ripples introduced by the pantograph–catenary arc.
Wei Wang, Wei Jiang, Hao Yue, Xiangmin He, Xinke Wang, Wensheng Song   +5 more
wiley   +1 more source

Parametric study of the load-bearing mechanisms in RC beam-grids to resist progressive collapse [PDF]

, 2019
Recently, several structural failures demonstrated the disastrous consequences of progressive collapse and raised the awareness of the engineering community.
Botte, Wouter, Caspeele, Robby, Droogné, Didier   +2 more
core  

Domain Wall Dynamics in Brane World and Non-singular Cosmological Models

, 2004
We study brane cosmology as 4D (4-dimensional) domain wall dynamics in 5D bulk spacetime. For a generic 5D bulk with 3D maximal symmetry, we derive the equation of motion of a domain wall and find that it depends on mass function of the bulk spacetime ...
D. Langlois, J. Polchinski, J. L. Hovdebo, K. Akama, K. Akama, K. Maeda, Kei-ichi Maeda, Naoya Okuyama, P. Kraus, S. W. Hawking, W. Israel   +10 more
core   +1 more source

A Comprehensive Review of Potential Locations, Foundation Design, and Seismic Considerations for Installation of Offshore Wind Farms in Türkiye

IET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
Offshore wind power offers a promising solution to Türkiye's energy and climate challenges, with its extensive coastline and strategic location providing significant potential for development between 2035 and 2053. While no OWTs are currently installed, designated development zones in the Sea of Marmara mark the initial steps toward increasing ...
Hasan Emre Demirci, Ömür Tekince, Alper Sezer, Subhamoy Bhattacharya   +3 more
wiley   +1 more source

Stages of Resistance of Reinforced Concrete Frames in Accidental Design Situation

Structural Mechanics of Engineering Constructions and Buildings
The study addresses the stress-strain state stages of reinforced concrete frames in zones of potential local collapse due to failure of a vertical element, such as a column or pylon.
Sergei Yu. Savin
doaj   +1 more source

Photovoltaic‐Assisted Energy Optimization for High‐Speed Train Performance in South Africa Intercity Electric Rail Corridors

The Journal of Engineering, Volume 2026, Issue 1, January/December 2026.
ABSTRACT Decarbonizing the intercity rail in sub‐Saharan Africa requires the use of energy architectures that go beyond traditional grid reliance at the expense of traction performance. This paper introduces a novel photovoltaic (PV)‐assisted hybrid traction topology for a 42 km Pretoria–Sandton rail corridor in South Africa, where between‐rail PV ...
Chinedu T. Obe, Nnamdi I. Nwulu
wiley   +1 more source