Results 11 to 20 of about 73,832 (78)
Longwall surface subsidence control by technology of isolated overburden grout injection
Surface subsidence is a typical ground movement due to longwall mining, which causes a series of environmental problems and hazards. In China, intensive coal extractions are commonly operated under dense-populated coalfields, which exacerbates the ...
Dayang Xuan, Jialin Xu
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Titanium composite strengthened by Ti3Al precipitations is considered to be one of the excellent materials that is widely used in engineering. In this work, we prepared a kind of Ti-Ti3Al metallic composite by in-situ synthesis technology during the SLM (
Yize Li +7 more
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Glasses in the system xV2O5·20Li2O·(80 − x) [0.6B2O3:0.4ZnO] (where 10 ≤ x ≤ 50) have been prepared by a simple microwave method. Microwave synthesis of materials offers advantages of efficient transformation of energy throughout the volume in an ...
Basareddy Sujatha +3 more
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Coal mine longwall gateroads are subject to changing loading conditions induced by the advancing longwall face. The ground response and support requirements are closely related to the magnitude and orientation of the stress changes, as well as the local ...
Gabriel S. Esterhuizen +4 more
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Some remarks on the dynamical conformity of rock joints
A recently developed computerized method for assessing the rock joint coefficients is discussed. The performances of formerly introduced relative similarity indicators, along with the correlation coefficient, are subjected to critical analysis.
T. Ficker
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Superposition model for analyzing the dynamic ground subsidence in mining area of thick loose layer
The dynamic ground subsidence due to underground mining is a complicated time-dependent and rate-dependent process. Based on the theory of rock rheology and probability integral method, this study developed the superposition model for the prediction and ...
Defeng Hou +3 more
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طراحی و شبیهسازی دیوار تقویت شده با سپر بتنی انبار مواد منفجره در برابر بارگذاری انفجار [PDF]
حملات تروریستی با آسیب رساندن به سازهها و زیرساختهای یک کشور میتواند صدمات مالی و جانی زیادی را نیز به بار آورد؛ بنابراین توجه به موضوع پدافند غیرعامل در ساخت سازهها و همچنین طراحی و کنترل این سازهها باید مدنظر قرار گیرد. یکی از مهمترین زیرساختهای
امیررضا خدابخشی +1 more
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Hydraulic slotting in a gas drainage borehole is an effective method of enhancing gas drainage performance. However, it frequently occurs that a large amount of slotting products (mainly the coal slurry and gas) intensely spurt out of the borehole during
Chunshan Zheng +5 more
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Pattern Deep Region Learning for Crack Detection in Thermography Diagnosis System
Eddy Current Pulsed Thermography is a crucial non-destructive testing technology which has a rapidly increasing range of applications for crack detection on metals.
Jue Hu +7 more
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Įvairialyčiai lantano ir mangano oksido ir multiferoinio bismuto ferito heterodariniai
Pastaruoju metu naujų elektronikos prietaisų gamyboje buvo pasiekta didelė pažanga auginant, tyrinėjant ir pritaikant plonasluoksnes struktūras, sudarytas iš įvairių daugiakomponenčių funkcinių oksidų.
Bonifacas VENGALIS +1 more
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