Results 11 to 20 of about 11,243 (181)
AtoZ: Novas Práticas em Informação e Conhecimento, 2015 Introduction: The objective of this research is to identify the educational, communicative and learning advantages in implementing an innovative model of training for leveling students at the University of Guayaquil, that is, the creation and development
Oswaldo Aráuz Arroyo +1 more
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Energies, 2020 An experimental campaign on the methane-oriented underground coal gasification (UCG) process was carried out in a large-scale laboratory installation.
Krzysztof Kapusta +4 more
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Comparison of Combustion and Gasification between Crushed and Block Coals in UCG Model Tests
Journal of MMIJ, 2018 Small-scale underground coal gasification (UCG) model tests with a linking hole were carried out using two types of specimens made of either block coal or crushed coal to clarify their characteristics of combustion and gasification.
Jun-ichi KODAMA +7 more
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Prediction method of surface subsidence due to underground coal gasification under thermal coupling
Meitan kexue jishu, 2023 Underground coal gasification (UCG) is an essential part of the low-carbon green coal mining technology system. The implementation of the “double carbon” goal of the coal industry has brought excellent development opportunities for UCG. However, UCG will
Huaizhan LI +6 more
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INTERthesis, 2008 Visa o presente artigo discutir a importância das inovações tecnológicas como propulsoras do desenvolvimento econômico das nações, bem como o papel das políticas públicas voltadas para os agentes socioeconômicos e institucionais que fazem parte da ...
Charlene Maria C. de Ávila Plaza +2 more
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APPROACHES TO THE GAS CONTROL IN UCG
Acta Polytechnica, 2017 Underground Coal Gasification represents an alternative for conventional coal mining. This technology is also less expensive than traditional mining. It is expected that coal will be an important energy source in the coming decades. In requirement to improve the gasification process we must ensure that the combustion reactions generated enough energy ...
Ján Kačur, Karol Kostúr
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Investigation of Underground Coal Gasification in Laboratory Conditions: A Review of Recent Research
Energies, 2023 The underground coal gasification (UCG) technology converts coal into product gas and provides the option of environmentally and economically attractive coal mining. Obtained syngas can be used for heating, electricity, or chemical production.
Ján Kačur +3 more
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Acta Scientiarum: Biological Sciences, 2007 A fragmentação de hábitat causada pela ação humana vem sendo um dos grandes desafios para a biologia da conservação. A construção de estradas é um mecanismo de fragmentação de alto impacto, removendo a cobertura vegetal original, gerando efeito de borda ...
Tiago Rodrigues do Prado +2 more
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, 1992 This article suggests that linguistic observations can be captured by an axiomatic system ; modelssatisfying the axioms can be compared with sentences specified by the grammars in order to controltheir descriptive adequacy. The authors show how this can be performed with a UCG type grammar.
Jurie, Pierre-François +1 more
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Acta Scientiarum: Biological Sciences, 2007 Em geral, as tentativas para estabelecer áreas prioritárias para conservação no Cerrado têm sido baseadas em critérios subjetivos. No presente trabalho, foram utilizados dados macroecológicos de distribuição de 129 espécies de serpentes distribuídas em ...
Larice de Fátima Couto +2 more
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