Results 41 to 50 of about 4,604 (287)

A Social Entrepreneurship Perspective of De‐Carbonising the Footprint through Recycling Compensation: A Case Study of the NGO Madre Coraje

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This research analyses the carbon footprint of the NGO Madre Coraje, using an integrated methodology that combines the calculator provided by REAS (Red de Economía Alternativa y Solidaria) Navarra and the Life Cycle Assessment (LCA). It quantifies emissions across the three scopes of the Greenhouse Gas Protocol, evaluating both direct and ...
José Fernandez‐Serrano   +2 more
wiley   +1 more source

GIS Analysis: Re-routing Metro Parks service vehicles

open access: yes, 2008
:The purpose of this research was to create the most efficient driving routes for Metro Parks service vehicles using ESRI's ARC GIS software. Currently the Metro Parks service vehicles do not have predetermined routes, or any sort of tracking devices ...
Pfingston, Jason
core   +2 more sources

Survey for the development of compressed natural gas systems (CNG) for vehicles [PDF]

open access: yes, 2005
Compressed Natural Gas (CNG) vehicles have been used internationally by fleets for decades. The use of CNG vehicles results in less petroleum consumption, resulting in fewer air pollutants and greenhouse gas emissions in most applications. In Europe, the
Abulamosha, A.M.
core  

Nonsilting transport characteristics of coal slurry in a deep underground fluidization conveying pipeline under the action of a guide vane swirler

open access: yesDeep Underground Science and Engineering, EarlyView.
Aiming at the scientific frontiers of in situ fluidized mining of deep resources, a deep coal fluidized pipeline lifting system based on hydraulic conveying has been proposed. To solve the issue of particle sedimentation of large particles in horizontal connection sections, a solution involving the installation of guide vane‐type swirlers in the ...
Jiusheng Bao   +5 more
wiley   +1 more source

Unveiling spatial heterogeneity in urban underground space development patterns and mechanisms for differentiated planning: A points of interest‐based study of Shanghai

open access: yesDeep Underground Science and Engineering, EarlyView.
This study investigated the spatial patterns and development mechanisms of urban underground space (UUS) in Shanghai using underground points of interest data. It revealed distinct development mechanisms between the main city and suburbs, highlighting the need for differentiated UUS planning and policies to optimize underground space resources ...
Chenxiao Ma   +3 more
wiley   +1 more source

Study on Grounding System of the Metro Vehicles

open access: yes, 2020
The function of the grounding system is related to the operation performance of the metro vehicles, so it has special significance to conduct a research. The classification and definition of the vehicle grounding was introduced, including protective earthing, functional bonding and EMC-related grounding.
Mingyuan HAO   +4 more
openaire   +1 more source

Carbon emission assessment of tunnel infrastructures: From construction to operation

open access: yesDeep 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   +4 more
wiley   +1 more source

Energy Efficiency and Integration of Urban Electrical Transport Systems: EVs and Metro-Trains of Two Real European Lines

open access: yesEnergies, 2019
Transport is a main source of pollutants in cities, where air quality is a major concern. New transport technologies, such as electric vehicles, and public transport modalities, such as urban railways, have arisen as solutions to this important problem ...
Adrián Fernández-Rodríguez   +3 more
doaj   +1 more source

Analysis on Aerodynamic Parameters for Rapid Metro Vehicle Design

open access: yesDEStech Transactions on Engineering and Technology Research, 2017
Regarding rapid metro vehicle, the possible aerodynamic effects of vehicle are described and the analysis of vehicle design parameters related to the aerodynamic effect and their change rule are briefly introduced. This paper, from one side, provides a basis for the design of rapid metro vehicle.
WENTIAN TANG, LILI WANG
openaire   +2 more sources

Predictive Maintenance of Urban Metro Vehicles: Classification of Air Production Unit Failures Using Machine Learning

open access: yes, 2023
Predictive maintenance methods assist early detection of failures and errors in machinery before they reach critical stages. Predictive maintenance methods assist early detection of failures and errors in machinery before they reach critical stages ...
Ashqar, Huthaifa   +2 more
core   +1 more source

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