Navegação Artigos de Periódicos por Título
Resultados 36911-36930 de 37140
-
Waste electrical and electronic equipment : risks and opportunities under a sustainable perspective
(2020) [Artigo de periódico]It is estimated that the amount of waste electrical and electronic equipment (WEEE) increases annually due to planned obsolescence, technological changes and changes in people’s lifestyles. The aim of the present study is ... -
Waste generation in agate processing : use of SiO2 as a support matterial [sic] for Fe3O4
(2015) [Artigo de periódico]Brazil is one of the main producers of colored gemstones, and Rio Grande do Sul is the state with the greatest production of agates, amethysts and citrines. This sector is preponderant in the economy of the regions of the ... -
Waste glass in porcelain
(2005) [Artigo de periódico]In this work, the feldspar used as a flux in typical porcelain was replaced by waste glass, and the resulting batch composition contained 50% kaolin, 25% quartz and 25% waste glass. The properties of this porcelain with ... -
Wastewater treatment in a pilot-scale submerged membrane bioreactor : study of hydrodynamics under constant operating pressure
(2018) [Artigo de periódico]A pilot-scale Submerged Membrane Bioreactor provided with PEI hollow fiber membranes was operated under constant pressure mode in order to evaluate the effects of hydrodynamic conditions on the process performance, such ... -
Waterborne aripiprazole blunts the stress response in zebrafish
(2016) [Artigo de periódico]Here we provide, at least to our knowledge, the first evidence that aripiprazole (APPZ) in the water blunts the stress response of exposed fish in a concentration ten times lower than the concentration detected in the ... -
Waterborne risperidone decreases stress response in zebrafish
(2015) [Artigo de periódico]The presence of drugs and their metabolites in surface waters and municipal effluents has been reported in several studies, but its impacts on aquatic organisms are not yet well understood. This study investigated the ... -
Water diffusion in carbon nanotubes : Interplay between confinement, surface deformation, and temperature
(2020) [Artigo de periódico]In this article, we investigate, through molecular dynamics simulations, the diffusion behavior of the TIP4P/2005 water confined in pristine and deformed carbon nanotubes (armchair and zigzag). To analyze different diffusive ... -
Water diffusion in rough carbon nanotubes
(2020) [Artigo de periódico]We use molecular dynamics simulations to study the diffusion of water inside deformed carbon nanotubes with different degrees of deformation at 300 K. We found that the number of hydrogen bonds that water forms depends on ... -
Water disappearance dynamics in growing-finishing pig production
(2019) [Artigo de periódico]The objective of this study was to measure the water disappearance in the drinker and the pattern of daily water intake and estimate the amount of water wasted in pig production. The study will also generate information ... -
Water dynamics, phytoplankton biomass and size structure of a shalow freshwater subtropical lake (Itapeva Lake, South of Brazil)
(2004) [Artigo de periódico]Regular tools used to characterize the phytoplankton community structure are taxonomic composition, diversity of species and the classification of organisms according to their size. The main objective of this study was to ... -
Water erosion under simulated rainfall in different soil management systems during soybean growth
(2007) [Artigo de periódico]O manejo do solo influencia a cobertura superficial pelo resíduo cultural e, juntamente com a cobertura do solo pela copa das plantas, afeta a erosao hídrica. O objetivo do estudo foi quantificar as perdas de água e solo ... -
Water-food-energy nexus tradeoffs in the São Marcos river basin
(2021) [Artigo de periódico]Given its potentialities and characteristics, energy generation, food production, and water availability have a strong interdependency and correlation. Water is needed to produce energy and food, while energy is required ... -
Water hyacinth composting as a waste management strategy : a systematic review
(2022) [Artigo de periódico]Macrophytes proliferation problem is worldwide know resulting in impacts on natural environment, human health and economic activities. These organisms have several parameters resilience, which ensures high rate of reproduction ... -
Water in soybean oil microemulsions as medium for electrochemical measurements
(2003) [Artigo de periódico]Microemulsões de água em óleo de soja (w/o ME) foram preparadas com dodecil sulfato de sódio (SDS) como surfactante e com os álcoois amílico ou isoamílico, como co-surfactantes. A composição 40,0% de óleo, 43,2% de álcool, ... -
Waterlike anomalies in a two-dimensional core-softened potential
(2018) [Artigo de periódico]We investigate the structural, thermodynamic, and dynamic behavior of a two-dimensional (2D) core-corona system using Langevin dynamics simulations. The particles are modeled by employing a core-softened potential which ... -
Waterlike hierarchy of anomalies in continuous spherical shouldered potential
(2008) [Artigo de periódico]We investigate by molecular dynamics simulations a continuous isotropic core-softened potential with attractive well in three dimensions, introduced by Franzese [J. Mol. Liq. 136, 267 (2007)], that displays liquid-liquid ... -
Water quality assessment of the Sinos River, Southern Brazil
(2010) [Artigo de periódico]A Bacia Hidrográfica do Rio dos Sinos localizada a nordeste do Estado do Rio Grande do Sul, entre as coordenadas geográficas de 29° 20’ a 30°10’ de latitude Sul e de 50° 15’ a 51° 20’ de longitude Oeste. As províncias ... -
Water saturation stress in Mimosa scabrella seedlings
(2019) [Artigo de periódico]The stress caused by water saturation has negative consequences for plants. The search for species tolerant to flooded soils can make feasible the use of areas with these characteristics. The objective of this study was ... -
A water soluble 3-n-propyl-1-azonia-4-azabicyclo[2.2.2]octanechloride silsesquioxane grafted onto Al/SiO2 surface : chromium adsorption study
(2006) [Artigo de periódico]O material octanocloreto de 3-n-propil-1-azonia-4-azabiciclo[2.2.2] silsesquioxano (dabcosil silsesquioxano) solúvel em água foi obtido. O dabcosil silsesquioxano foi enxertado na superfície da sílica, previamente modificada ... -
Water storage variability across Brazil
(2022) [Artigo de periódico]Brazil hosts a large amount of freshwater. Knowing how this stored water is partitioned in space and time between surface and subsurface components is a crucial step towards a more correct depiction of the country’s water ...
