Results 31 to 40 of about 196,341 (267)

Archaeological Damage Assessment in Conflict Zones: Integrating Satellite Imagery and Ground Surveys in Daraa, Syria

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Satellite remote sensing is among the most significant modern methodologies supporting field archaeology. In addition to its efficiency in identifying archaeological sites, remote sensing offers a safe and cost‐effective approach in conflict zones.
Amal Al Kassem   +5 more
wiley   +1 more source

A new CAE procedure for railway wheel tribological design [PDF]

open access: yes, 2004
New demands are being imposed on railway wheel wear and reliability to increase the time between wheel reprofiling, improve safety and reduce total wheelset lifecycle costs.
Bel Knani, K.   +5 more
core  

Circular Economy Pathways for Airport Climate Change Mitigation

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Airport operators face growing climate‐change pressures; the circular economy offers pathways to reduce impacts and recover resources. We examine how airport operators apply the circular economy in practice. We use an exploratory qualitative multicase design based on practitioner‐generated documents (e.g., press releases and sustainability ...
Michele Oppioli   +3 more
wiley   +1 more source

Closure Effect of I + II Mixed-mode Crack for EA4T Axle Steel

open access: yesChinese Journal of Mechanical Engineering
The crack-closure effect is a crucial factor that affects the crack growth rate and should be considered in simulation analysis and testing. A mixed-mode I + II loading fatigue crack growth test was performed using EA4T axle steel specimens.
Shuancheng Wang   +4 more
doaj   +1 more source

Curve-passing Performance of New Generation Single-axle Straddle Monorail Vehicle

open access: yesChengshi guidao jiaotong yanjiu
[Objective] The curve-passing performance of a new-model single-axle straddle monorail vehicle on small-radius non-linear curve tracks and linear curve tracks is researched and analyzed.
Guomin LYU   +5 more
doaj   +1 more source

Rails Won't Save America [PDF]

open access: yes, 2008
Rising gas prices and concerns about greenhouse gases have stimulated calls to build more rail transit lines in urban areas, increase subsidies to Amtrak, and construct a large-scale intercity high-speed rail system. These megaprojects will cost hundreds
Randal O'Toole
core  

A Taxonomy of Predictive Maintenance as a Basis for Supra‐Regional Sustainability Monitoring—Literature Review

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The concept of predictive maintenance in advanced manufacturing systems is crucial from the point of view of resource efficiency in the era of high competitiveness forced by energy transformation in the digital economy. Against the backdrop of sustainability and the opportunities a data cooperative offers, the combination of predictive ...
Christian Schachtner   +6 more
wiley   +1 more source

Influence of high-frequency vibration-absorbing fasteners on suppressing localized rail bending modal vibration

open access: yesRailway Engineering Science
Since the view that the localized rail third-order bending mode can cause high-order polygonization (mainly 18–23) of high-speed train wheels was put forward in 2017, many scholars have attempted to link a connection between the localized rail bending ...
Zhecheng Tao   +9 more
doaj   +1 more source

Wheel/rail contact model for rail vehicle dynamics

open access: yesComptes Rendus. Mécanique, 2011
An advanced method using progressive concept of correspondence is applied to create new wheel/rail model based on the virtual penetration theory. The geometry and mechanism of contact are solved simultaneously because of the independency in a defined correspondence.
Mohammad Mahdi Jalili, Hassan Salehi
openaire   +1 more source

Defining Remanufacturing: A Key Business Strategy Advancing Industrial Circularity

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Remanufacturing is a key strategy in the circular economy, enabling substantial product value retention. However, inconsistent definitions across standards and legislation hinder global trade, core recovery and market acceptance. This study examines how remanufacturing is defined in laws and standards, and how these definitions impact industry
Erik Sundin   +2 more
wiley   +1 more source

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