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Longyong Shu
This study aimed to examine gas extraction technology in the goaf of an L-shaped borehole in the mining fissure zone of a short-distance coal seam group. The numerical simulation method was used to analyze the failure law of overlying rock during mining,...
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Yuqiang Wang, Zhe Wang, Xiangyu Song, Ling Bai, Mahmoud A. El-Emam and Ling Zhou
This paper focuses on investigating the stall phenomenon of a three-stage electrical submersible pump using numerical methods by examining the internal and external characteristics of the pump under design conditions and critical stall and deep stall con...
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Feilong Jie, Liangjun Fei, Shan Li, Kun Hao, Lihua Liu and Youliang Peng
To establish the uncertain influence that the joint distribution of precipitation and reference evapotranspiration has on net irrigation water requirement, a Copula function?Monte Carlo method (CFMC) was proposed to calculate the probability of irrigatio...
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Ghazali Bello Abubakar (Author)
Pág. 29 - 34
Purpose of the study:Centrally, this article aims at exploring the effects of the convulsion toward Egyptian domestic politics and democratic transition. However, it tries to examine whether the spring was for a political freedom or a merely evasive move...
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Jose A. Naranjo,Luis E. Lara
Pág. 359 - 366
During the winter months of August-September 2003 a small (VEI=0-1) eruption took place at the 9 km long fissure-like Nevados de Chillán Volcanic Complex (36°50'S), that includes Nuevo (formed between 1906 and 1945) and Arrau (formed in the 1973-1986 per...
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