Results 61 to 70 of about 245,899 (217)
, 2020 Falar de Geopolítica do Petróleo é falar dos cenários e dinâmicas políticas globais referentes ao principal recurso natural contemporâneo, que esteve em boa parte dos últimos tempos em disputa pelas grandes potências econômicas internacionais.
FGV Energia
core +2 more sources
Photovoltaic Effect in a III‐IV‐V Compound Semiconductor
Progress in Photovoltaics: Research and Applications, EarlyView.A large reduction of the GaAs band gap is obtained with incorporation of 6.5% Ge during epitaxy without introducing extended defects or composition inhomogeneity. Heterojunction solar cell devices were fabricated with 0.76‐V open circuit voltage and an internal quantum efficiency above 40% at energies below the bandgap of the GaAs emitter.
José M. Ripalda +13 more
wiley +1 more source
Geochimica Brasiliensis, 2016 O presente trabalho objetivou avaliar os aspectos da dinâmica dos sedimentos finos em suspensão nas bacias dos rios Jundiaí e Capivari (SP), para o entendimento dos processos de erosão mecânica que ocorrem nas duas bacias estudadas, e investigar a origem
Graziela Meneghel de Moraes +3 more
doaj +1 more source
Oil & Gas Science and Technology, 2013 The implementation and the combination of advanced boundary conditions and subgrid scale models for Large Eddy Simulations are presented. The goal is to perform reliable cold flow LES simulations in complex geometries, such as in the ...
Piscaglia F. +3 more
doaj +1 more source
Social Sustainability in Circular Bioeconomy Business Models: Insights From Argentina
Sustainable Development, EarlyView.ABSTRACT Research on circular bioeconomy business models (CBEBM) has largely prioritised environmental and economic aspects, leaving out the social pillar. To address this gap, this paper analyses to what extent and in what ways social sustainability is integrated into CBEBM, based on 12 cases from northern Argentina, a region with high potential for ...
Celina N. Amato +2 more
wiley +1 more source
DETERMINAÇÃO DO VALOR D10 PARA ESCHERICHIA COLI EM POLPA DE JUÇARA IRRADIADA
Alimentos e Nutrição, 2011 A aplicação de tratamentos não térmicos tem se mostrado efi ciente na inibição de bactérias como Escherichia coli. Sua presença em alimentos processados é considerada uma indicação útil de contaminação pós sanitização ou pós processo (principalmente ...
Paula Porrelli Moreira da SILVA +5 more
doaj
Sustainable Development, EarlyView.ABSTRACT Technological progress and population growth have increased global pork demand; leading to a rise of methane emission from pig farming, a key contributor to climate change. Anaerobic digestion offers a sustainable solution by converting manure into biogas.
María‐Pilar Martínez‐Hernando +5 more
wiley +1 more source
Surface runoff generation in a small watershed covered by sugarcane and riparian forest
Revista Ambiente & Água, 2013 Since an understanding of how runoff is generated is of great importance to soil conservation, to water availability and to the management of a watershed, the objective of this study was to understand the generation of surface runoff in a watershed ...
Rafael Pires Fernandes +4 more
doaj +1 more source
Sustainable Development, EarlyView.ABSTRACT Green hydrogen has emerged as a strategic component of Spain's decarbonization agenda, with the country leveraging its renewable energy potential and industrial capabilities to align with the European Union's climate goals. Drawing on a multidimensional theoretical framework, this article examines the key drivers shaping Spain's green hydrogen
Zeynep Arıöz, Xira Ruiz‐Campillo
wiley +1 more source
Efetividade de programa de controle de qualidade em mamografia para o Sistema Único de Saúde
Revista de Saúde Pública, 2012 OBJETIVO: Avaliar a efetividade de um programa de controle de qualidade de imagem nos serviços de mamografia da rede do Sistema Único de Saúde. MÉTODOS: Estudo prospectivo com análise temporal do tipo "antes e depois" de uma ação de vigilância em saúde ...
Rosangela da Silveira Corrêa +7 more
doaj +1 more source