Results 31 to 40 of about 1,371,942 (253)

Optimal railway infrastructure maintenance and repair policies to manage risk under uncertainty with adaptive control [PDF]

, 2006
The aim of this paper is to apply two adaptive control formulations under uncertainty, say open-loop and closed-loop, to the process of developing maintenance and repair policies for railway infrastructures.
Pérez, Jose M., Romera, Rosario, González, Javier, Carretero Pérez, Jesús   +3 more
core   +1 more source

Performance Analysis of Short-Span Simply Supported Bridges for Heavy-Haul Railways with A Novel Prefabricated Strengthening Structure

Buildings, 2023
A novel prefabricated strengthening structure (NPSS) is proposed to improve the vertical stiffness and load-bearing capacity of existing short-span bridges for heavier axle-load trains passing through.
Kaize Xie, Bowen Liu, Weiwu Dai, Shuli Chen, Xinmin Wang   +4 more
doaj   +1 more source

A Comprehensive Review on Additive Manufacturing of Smart Components: Technologies, Applications, and Future Scope

Advanced Intelligent Systems, EarlyView.
How can additive manufacturing enable components that sense, adapt, heal, and power themselves? This review synthesizes recent advances in smart functionalities, manufacturing technologies, and intelligent design strategies, revealing a pathway toward fully integrated, autonomous, and multifunctional systems across diverse engineering sectors. Additive
Aiswarya Rony, P. M. Ushasree, Michael Short, Jinoop Arackal Narayanan   +3 more
wiley   +1 more source

Integrating Remote Sensing, Archaeological Survey and Geophysical Prospections for the Enhancement of Roman Doclea, Montenegro

Archaeological Prospection, EarlyView.
ABSTRACT The Roman city of Doclea is a key archaeological site of Montenegro, valued for its impressive remains and its role in the nation's cultural identity within European and the Mediterranean history. Doclea was the second‐largest city in the province of Roman Dalmatia, a municipium created in the first century ad and named after the Illyrian ...
Tatjana Koprivica, Lucia Alberti, Marilena Cozzolino, Bruna Di Palma, Vincenzo Gentile, Pasquale Merola   +5 more
wiley   +1 more source

Key technologies of China high-speed comprehensive inspection train: CIT450

Railway Engineering Science
The China comprehensive inspection train (CIT) is designed for evaluating railway infrastructure to ensure safe railway operations. The CIT integrates an array of inspection devices, capable of simultaneously assessing railway health condition parameters.
Peng Dai, Hailang Li, Fadeng Wang, Xinyu Tian, Hao Wang, Xiaodi Xu   +5 more
doaj   +1 more source

Corporate ESG Greenwashing: Does Regulatory Proximity Matter?

Business Strategy and the Environment, EarlyView.
ABSTRACT Environmental, social, and governance (ESG) greenwashing undermines sustainable development, yet the influence of regulatory proximity on oversight is understudied. By introducing the “distance decay effect” from geoeconomics into ESG misconduct research and using a sample of Chinese listed firms from 2009 to 2022, this study reveals a ...
Weiqi Zhao, Zhichao Chen, Muhammad Nadeem, Guanghua Xu, Nader Atawnah   +4 more
wiley   +1 more source

A Rail Profile Measurement Method Based on Polarization Fusion Imaging

Sensors
The smooth area on the rail surface causes abnormal exposure in the laser section image, resulting in measurement errors of the rail profile. To address this issue, a novel rail profile measurement technique based on polarization fusion imaging is ...
Qiang Han, Xinxin Zhao, Jing Shi, Shengchun Wang, Peng Dai, Ning Wang, Le Wang   +6 more
doaj   +1 more source

Analysis of the Stressed State of Sand-Soil Using Ultrasound

Infrastructures, 2022
The maintenance of the ballast substructure is an important cost-driver for railway systems. The problem is that today’s condition monitoring methods are insufficient to collect detailed data on the compaction and stress allocation inside the ballast bed.
Lukas Benedikt Schumacher, Mykola Sysyn, Ulf Gerber, Szabolcs Fischer   +3 more
doaj   +1 more source

Australian infrastructure audit [PDF]

, 2015
Examines the drivers of future infrastructure demand, particularly population and economic growth. Summary The Australian Infrastructure Audit takes a strategic approach to assessing our nation\u27s infrastructure needs.
Infrastructure Australia
core  

Bridging Academic Research and Business Practices at the Crossroad of Circular Economy and the SDGs

Business Strategy and the Environment, EarlyView.
ABSTRACT The global shift toward sustainability has amplified interest in the Circular Economy, which aims to optimize resource use and minimize waste. In parallel, the Sustainable Development Goals (SDGs) provide a universal framework for addressing social, environmental, and economic challenges.
Corentin Juin, Andrea Nicolodi
wiley   +1 more source