Results 21 to 30 of about 8,365,932 (359)

Phytoremediation Potential of Native Plant Species in Mine Soils Polluted by Metal(loid)s and Rare Earth Elements

open access: yesPlants, 2023
Mining activity has an adverse impact on the surrounding ecosystem, especially via the release of potentially toxic elements (PTEs); therefore, there is an urgent need to develop efficient technologies to remediate these ecosystems, especially soils ...
Mitra Azizi   +4 more
doaj   +1 more source

Bio-Monitoring of Metal(loid)s Pollution in Dry Riverbeds Affected by Mining Activity

open access: yesPlants, 2023
The aim of this study was to evaluate the most abundant native plants that could be used as a bio-monitor of metal(loid) concentration in dry riverbeds affected by mining activities.
José Cuevas   +6 more
doaj   +1 more source

Practical use of variational principles for modeling water waves [PDF]

open access: yes, 2012
This paper describes a method for deriving approximate equations for irrotational water waves. The method is based on a 'relaxed' variational principle, i.e., on a Lagrangian involving as many variables as possible.
Abramowitz   +62 more
core   +5 more sources

THE INTELLIGENT SYSTEM FOR AUTOMOTIVE FUELS QUALITY DEFINITION

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2013
An intelligent system, based on hydrodynamic method and artificial neural networks usage for automotive fuels quality definition have been developed. Artificial neural networks optimal structures for the octane number of gasoline, cetane number, cetane ...
Volodymyr Drevetskiy , Marko Klepach
doaj   +1 more source

Mathematical Game Theory in Civil Engineering Fire Safety [PDF]

open access: yesE3S Web of Conferences, 2019
In the analysis of the project documentation of a two-storeyed sports complex it was established that despite compliance of the project to all standards in the fire safety field, under certain conditions there is a danger of a delay of full people ...
Shikuskaya Olga   +3 more
doaj   +1 more source

Health assessment of hydro-ecosystems based on homeostasis indicators of fish: Review of approaches

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Bìologìâ, Ekologìâ, 2016
This paper reviews scientific literature concerning the possibility of using aspects of physiological responses of fish to environmental stressors and their indicators to assess vulnerability (‘health’) of hydro-ecosystems of various types.
N. A. Klimenko   +2 more
doaj   +1 more source

Biological indicators for pollution detection in terrestrial and aquatic ecosystems

open access: yesBulletin of the National Research Centre, 2020
Environmental pollution from varied sources is now deemed as one of the most serious problems everywhere. Several pollutants, however, could be perceived by certain biological indicators, each one is used to identify assured single or a category of ...
Alaa Zaghloul   +3 more
doaj   +1 more source

COMPUTER MODELLING OF AUTOMATIC CONTROL PROCESS OF DISTILLATION COLUMN

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2016
Here the process of distillation in the production of ethanol is considered. Developed a mathematical model of determination and regulation of ratio of distillation column and its impact on concentration and quantitative composition of impurities of ...
Volodymyr Drevetskiy, Vasyl Ivanchuk
doaj   +1 more source

Water-saving irrigated area expansion hardly enhances crop yield while saving water under climate scenarios in China

open access: yesCommunications Earth & Environment
Facing climate change risks of water shortages and crop yield losses, it is unclear in China that whether and how irrigated area expansion and technological yield improvement can increase production with less water. Here we used 2000–2018 as the baseline
Zhiwei Yue   +8 more
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy