Results 11 to 20 of about 27,111 (219)
Evaluation of a Compact Coaxial Underground Coal Gasification System Inside an Artificial Coal Seam [PDF]
Energies, 2018 The Underground Coal Gasification (UCG) system is a clean technology for obtaining energy from coal. The coaxial UCG system is supposed to be compact and flexible in order to adapt to complicated geological conditions caused by the existence of faults ...
Fa-qiang Su +5 more
doaj +3 more sources
Studia Geotechnica et Mechanica, 2021 The purpose of this paper was to present the thermoporoelasticity model adapted for application in modelling processes, where phase transition may occur, such as during underground coal gasification (UCG).
Uciechowska-Grakowicz Anna +1 more
doaj +1 more source
Frontiers in Energy Research, 2023 Although coal mining has played a substantial role in world’s development as a critical fuel source for at least 25 years, its value is partly offset by the massive environmental issues it presents during combustion.
Shadrack Adjei Takyi +6 more
doaj +1 more source
Analysis of criteria for UCG siting and operation [PDF]
Acta Montanistica Slovaca, 2009 Long-standing investigations into coal have enabled the identification of essential features of the course of the underground coal gasification (UCG) process as well the role and significance of some factors. The qualitative and quantitative characteristics of the most essential factors from the viewpoint of UCG process realisation constitutes the ...
Barbara Białecka
openaire +2 more sources
بررسی عددی پارامترهای مؤثر بر نشت سیال از کارگاه های استخراج UCG [PDF]
Muhandisī-i manābi̒-i ma̒danī, 2019 از جمله معیارها و عوامل تاثیرگذار بر امکانپذیری و اقتصادی بودن روش گازکردن زیرزمینی زغالسنگ (UCG) ، نشت گاز از میان درزه و شکافهای اطراف راکتور زیرزمینیUCG است.
علی حیدری +2 more
doaj +1 more source
Machine translation using isomorphic UCGs [PDF]
Proceedings of the 12th conference on Computational linguistics -, 1988 This paper discusses the application of Unification Categorial Grammar (UCG) to the framework of Isomorphic Grammars for Machine Translation pioneered by Landsbergen. The Isomorphic Grammars approach to MT involves developing the grammars of the Source and Target languages in parallel, in order to ensure that SL and TL expressions which stand in the ...
John L. Beaven, Pete Whitelock
openaire +1 more source
UCG Grammars; the Control of their Descriptive Adequacy
, 1989 Several models of grammars were used in the ACORD project (LFG, UCG, GPSG, string grammars and CCG). Only the first two remained as the standard grammar models of the project. Furthermore, the UCG model can be understood as a general framework leaving open choices: these are represented in the English and French grammars in their several and evolving ...
Bès, Gabriel G. +1 more
openaire +3 more sources
Auxiliaries and clitics in French UCG grammar [PDF]
Proceedings of the third conference on European chapter of the Association for Computational Linguistics -, 1987 French auxiliaries and clitics have been analysed in the frame of U.C.G. (Unification Categorial Grammar). Concatenation of a functor sign and an adjacent argument sign is the basic operation of the model; unification allows (a) to verify if constraints on concatenation are respected; (b) to produce a flow of information between the functor sign and ...
Kray-Baschung, Karine +3 more
openaire +2 more sources
Dilemma and countermeasure of policy construction of UCG industry
Meitan xuebao, 2023 Underground coal gasification (UCG) is the inevitable choice for China’s energy development and driven by the strategy of the development of efficient coal energy structure.
Yong QIN +6 more
doaj +1 more source
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
doaj +1 more source