Evolution of broken pressure and fracture morphology in indirect fracturing for broken-soft coal
Indirect fracturing using a horizontal well in roof is a promising technology for methane exploitation in broken soft and low-permeability coal seams. Stratum-penetration fracturing and a complex fracture network with good conductivity are two keys for ...
Dijie ZHU+5 more
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Because the coal seam is particularly thick and the mining intensity is large, the mining of extremely thick coal seams often causes a wide range of disturbed fractures, which in turn induces the phenomenon of strong underground pressure such as induced ...
Yongkang Yang+4 more
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In-situ cross linking of polyvinyl alcohol [PDF]
A method of producing a crosslinked polyvinyl alcohol structure, such as a battery separator membrane or electrode envelope is described. An aqueous solution of a film-forming polyvinyl alcohol is admixed with an aldehyde crosslinking agent a basic pH to
Hsu, L. C.+2 more
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Theory on Plane Curves in Non-Metrical Analysis Situs [PDF]
Oswald Veblen
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THE GENETICS OF CONGENITAL HEART DISEASE AND SITUS INVERSUS IN SIBS [PDF]
M. Campbell
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Apelt's Pseudo-Aristotelian Treatises - Aristotelis qùae feruntur De Plantis, De Mirabilibus Auscultationibus, Ventorum Situs et Nomina, De Melisso Xenophane Gorgia. Edidit Otto Apelt. Lipsiae, in aedibus B. G. Teubneri, MDCCCLXXXVIII. 3 Mk. [PDF]
J. Cook Wilson
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Strongly connected ex-situ MgB2 polycrystalline bulks fabricated by solid-state self-sintering
We have investigated the microstructure, normal-state electrical connectivity, and critical current density of ex-situ MgB2 polycrystalline bulks prepared by systematically varying the sintering conditions under low pressure.
Kishio, Kohji+4 more
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Tool repairs tube components in situ [PDF]
Two versions of a portable tool repair the seats of tube fittings and the flared ends of tubing. Each version operates on the principle of lapping to remove imperfections from tube and fitting interfacing ...
Rush, R. E., Tucker, P. E.
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Post-growth annealing of GaMnAs under As capping - an alternative way to increase Tc
We demonstrate that in situ post-growth annealing of GaMnAs layers under As capping is adequate for achieving high Curie temperatures (Tc) in a similar way as ex situ annealing in air or in N2 atmosphere practiced earlier.Comment: 13 pages, 4 ...
Adell, M.+9 more
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The subject-in-situ generalization revisited [PDF]
The goal of this paper is to re-examine the status of the condition in (1) proposed in Alexiadou and Anagnostopoulou (2001; henceforth A&A 2001), in view of recent developments in syntactic theory.
Alexiadou, Artemis+1 more
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