Environmental Costs
Mostrando 1-12 de 346 artigos, teses e dissertações.
-
1. Comparison of minimal-flow sevoflurane versus desflurane anesthesia: randomized clinical trial
Abstract Background and objectives: Minimal-flow anesthesia provides various advantages, such as reduced environmental pollution, proper humidification and warming of anesthetic gases, and reduced costs. The aim of this study was to compare the cost-effectiveness of minimal-flow sevoflurane and desflurane anesthesia and their effects on hemodynamics, postop
Brazilian Journal of Anesthesiology. Publicado em: 2022
-
2. Selective formation of neodymium phosphate from iron-neodymium magnet waste
Abstract Neodymium-iron-boron alloy, Nd2Fe14B, is used as a material for magnets. Neodymium is one of the valuable and expensive rare earth elements and is often recovered to reduce costs and environmental impact. Recently, a method for recovering neodymium as neodymium phosphate from mixed solutions was reported. This method was very useful because the main
Cerâmica. Publicado em: 2022
-
3. Effects of the addition of graphene on the compressive strength of geopolymeric mortar developed from k-feldspar mining waste
Abstract Contemporary organizations are showing a growing interest in the reuse of solid waste from industrial processes with the intention of reducing environmental impacts and reducing costs. The mining activity is one of the main waste generators in Brazil. In parallel, geopolymeric materials have been gaining prominence in studies that make it a possible
REM, Int. Eng. J.. Publicado em: 2021-09
-
4. Multi-stage dumping sequence - a feasible waste management alternative for open pit mining
Abstract Waste management and environmental aspects are progressively gathering attention in the mining industry. Mine planners must deal with increasingly complex tasks to balance between ore block schedules, waste disposal, operational cost and environmental reclamation. The mine incomes are generally related to mining and processing of the ore, thus most
REM, Int. Eng. J.. Publicado em: 2021-06
-
5. Effects of sintering temperature on microstructure and properties of sanitaryware ceramic produced with waste material
Abstract This paper aims at exploring the possibility of using a great percentage of recycled materials into vitreous china (VC), thus, contributing to urban waste decrease while lowering the industry’s buying costs, previously optimized, for the sanitaryware production. The recycled blend was introduced in the ceramic slip, Sanitser VC, and used in three
Cerâmica. Publicado em: 2021-03
-
6. Response of grey slug to entomopathogenic nematodes
ABSTRACT Biological control using entomopathogenic nematodes (EPNs) is known as an ecofriendly strategy in integrated pest management. The terrestrial slug Parmacella ibera is a major pest of vegetables and citrus trees in north of Iran. The heavy costs and environmental concerns of synthetic molluscicides led the study to use EPNs, against the slug P. ibera
Bragantia. Publicado em: 2020-12
-
7. Evaluation of environmental rehabilitation practices in bauxite mining at the plateau of Poços de Caldas
Abstract Bauxite mining has been carried out around Poços de Caldas, Minas Gerais, since the 1940s. Companies operating in the region pioneered land rehabilitation in Brazil, conducted since the early 1980s. Different procedures of recontouring, runoff drainage, soil preparation and vegetation planting were employed. This research aims to evaluate current e
REM, Int. Eng. J.. Publicado em: 2020-06
-
8. Erratum
Abstract Bauxite mining has been carried out around Poços de Caldas, Minas Gerais, since the 1940s. Companies operating in the region pioneered land rehabilitation in Brazil, conducted since the early 1980s. Different procedures of recontouring, runoff drainage, soil preparation and vegetation planting were employed. This research aims to evaluate current e
REM, Int. Eng. J.. Publicado em: 2020-06
-
9. DURABILITY OF HDPE GEOMEMBRANES: AN OVERVIEW
The polymer demand for geotechnical applications has been growing. The geomembrane is a geosynthetic, manufactured, polymeric product and is often specified in environmental projects. Geomembranes started to be used in the 1930s but became more widespread in the 1940s. In the 1970s, geomembranes began to be specified for landfills. Over the past forty years,
Quím. Nova. Publicado em: 2020-05
-
10. Conservation Agriculture in Trouble? Estimating the Economic Impact of an Eventual Glyphosate Prohibition in Spain
RESUMO: O controle de plantas daninhas é um aspecto crucial em muitos sistemas de agricultura de conservação, uma vez que os custos e a economia de tempo de evitar o plantio direto estão intimamente ligados ao uso de herbicidas eficazes e ecologicamente corretos. Isso levou ao uso difundido de glifosato em fazendas administradas sob agricultura de conser
Planta daninha. Publicado em: 02/12/2019
-
11. Rentabilidade do milho e do feijão submetido a diferentes lâminas de irrigação em Mato Grosso
Resumo Quantificar o consumo hídrico para a irrigação é essencial para otimizar o uso da água e contribuir para o alcance da eficiência econômica, que pode ser articulada com planejamento e estratégias de manejo. O objetivo desta pesquisa consiste em quantificar o custo variável do manejo da irrigação e a rentabilidade de milho e feijão aliados �
Rev. Econ. Sociol. Rural. Publicado em: 28/11/2019
-
12. The challenge of restoring tropical freshwater ecosystems
Resumo Vivemos um processo mundial crescente de degradação das bases de sustentação da vida. No Brasil esta ameaça se intensifica pela fragilização crescente das estruturas de proteção ambiental. A restauração ecológica é uma alternativa para enfrentar a degradação dos ambientes aquáticos. Ela tem sido empregada em maior escala nas regiões d
Acta Limnol. Bras.. Publicado em: 28/11/2019