Results 31 to 40 of about 53,374 (230)

Ecological life cycle analysis (LCA) on the example of materials used in warehouse buildings [PDF]

open access: yesArchives of Civil Engineering
Construction cannot be called as an environment friendly process, hence many solutions are being developed to define the negative interactions of the buildings, determine the extent of environmental impact and find alternatives to improve design ...
Krzysztof Zima   +2 more
doaj   +1 more source

No way out? The double-bind in seeking global prosperity alongside mitigated climate change [PDF]

open access: yes, 2012
In a prior study, I introduced a simple economic growth model designed to be consistent with general thermodynamic laws. Unlike traditional economic models, civilization is viewed only as a well-mixed global whole with no distinction made between ...
Garrett, Timothy J.
core   +2 more sources

Chemical Upcycling of Nitrile Butadiene Rubbers to Polyamines and Polyols by Chemoselective Catalytic Hydrogenation

open access: yesAngewandte Chemie, EarlyView.
We demonstrate here the transformation of NBR (Nitrile butadiene rubber) including post‐consumer waste sourced from nitrile gloves and o‐rings into polyamines and polyols via ruthenium catalyzed hydrogenation. ABSTRACT We report here two new approaches for the chemical recycling/upcycling of nitrile butadiene rubber (NBR) to make either polyamines or ...
Alejandra Sophia Lozano Perez   +7 more
wiley   +2 more sources

Life cycle analysis of road construction and use [PDF]

open access: yes, 2019
Both the construction and use of roads have a range of environmental impacts; therefore, it is important to assess the sources of their burdens to adopt correct mitigation policies.
D'Andrea, Antonio   +2 more
core   +1 more source

Low-GWP refrigerants for medium and high-pressure applications [PDF]

open access: yesInternational Journal of Refrigeration, 2017
The merits of an alternative refrigerant are established based on many attributes including environmental acceptance, chemical stability in the refrigeration system, low toxicity, flammability, efficiency and volumetric capacity. In an earlier work, these criteria were used to screen a comprehensive database to search for refrigerants with low global ...
Piotr A. Domanski   +4 more
openaire   +2 more sources

Delineating groundwater potential recharge zones using remote sensing and GIS through the analytical hierarchy process (AHP) in northern Namibia’s landscapes

open access: yesGeology, Ecology, and Landscapes
Water is a critical resource for human and ecological sustainability, particularly in semi-arid regions such as Namibia, where surface water is limited and evaporation rates are high.
Severeni Ashili   +2 more
doaj   +1 more source

A Global Meta-Analysis on the Impact of Management Practices on Net Global Warming Potential and Greenhouse Gas Intensity from Cropland Soils. [PDF]

open access: yesPLoS ONE, 2016
Management practices, such as tillage, crop rotation, and N fertilization, may affect net global warming potential (GWP) and greenhouse gas intensity (GHGI), but their global impact on cropland soils under different soil and climatic conditions need ...
Upendra M Sainju
doaj   +1 more source

Local community water providers universalize access and reduce poverty

open access: yesCiencias Ambientales, 2013
This article develops two themes: the link between access to water and poverty, and the role of community organizations enabling access to water in rural and periurban communities of Costa Rica.
Maureen Ballestero
doaj   +1 more source

Impact of Combine Harvester Technological Operations on Global Warming Potential

open access: yesApplied Sciences, 2021
The agricultural machinery is making a considerable negative contribution to the acceleration of global warming. In this study, we analyzed the impact of combine harvesters (CHs) on the global warming potential (GWP) by evaluating the telematics data ...
Dainius Savickas   +4 more
doaj   +1 more source

Fictitious time wave packet dynamics: I. Nondispersive wave packets in the quantum Coulomb problem

open access: yes, 2009
Nondispersive wave packets in a fictitious time variable are calculated analytically for the field-free hydrogen atom. As is well known by means of the Kustaanheimo-Stiefel transformation the Coulomb problem can be converted into that of a four ...
Fabčič, T., Main, J., Wunner, G.
core   +1 more source

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