Results 81 to 90 of about 37,696,825 (250)
Method for calculating pressure of surrounding rock in loess tunnels
Yantu gongcheng xuebaoTo propose a calculation method for surrounding rock pressure applicable to loess tunnels, analyzed the formation mechanism of surrounding rock pressure in loess tunnels, based on a large amount of field test data of surrounding rock pressure, extracted ...
LUO Yanbin, CHEN Hao, CHEN Jianxun, , WANG Chuanwu
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Applied SciencesAccurately estimating the steel reinforcement volume in hydropower plant structures requires a clear understanding of the statistical patterns of reinforcement ratios.
Xin He +3 more
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Structural Concrete, 2018 In order to develop a calculation method for the ultimate flexural capacity of high strain‐hardening ultra‐high performance concrete (UHPC) T‐beams, four‐point loading tests on five specimens were carried out. The design parameters were the ratio and the
Chao Liu +3 more
semanticscholar +1 more source
, 2002 We have examined a method of direct extraction of accurate tight-binding parameters from an ab-initio band-structure calculation. The linear muffin-tin potential method, in its full-potential implementation, has been used to provide the hamiltonian and ...
Altmann +89 more
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Calculation method of proppant embedment depth in hydraulic fracturing
, 2018 For the issue of proppant embedment in hydraulic fracturing, a new calculation method of embedment depth considering elastic-plastic deformation was proposed based on the mechanism of proppant embedment into rocks by combining proppant embedment ...
Chen Ming +7 more
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A quasi-Newton proximal splitting method [PDF]
, 2012 A new result in convex analysis on the calculation of proximity operators in certain scaled norms is derived. We describe efficient implementations of the proximity calculation for a useful class of functions; the implementations exploit the piece-wise ...
Becker, Stephen, Fadili, M. Jalal
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Methods to Calculate Entropy Generation
EntropyEntropy generation, formulated by combining the first and second laws of thermodynamics with an appropriate thermodynamic potential, emerges as the difference between a phenomenological entropy function and a reversible entropy function. The phenomenological entropy function is evaluated over an irreversible path through thermodynamic state space via ...
Jude A. Osara, Michael D. Bryant
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Frontiers in Earth ScienceIntroductionLattice-shaped diaphragm walls (LSDWs) are increasingly used in bridge foundations and foundation pit enclosures due to their high vertical and horizontal load-bearing capacity. Unlike conventional diaphragm walls that mainly support vertical
Ke Li +4 more
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A study on calculating methods of rational replacement period of heavy pepair of tractors
浙江大学学报. 农业与生命科学版, 2005 Index selection in calculating rational replacement period of tractors is systematically analyzed considering the law of technology state of tractors and wear and tear of spare parts and methods for calculating economic limits of both overhaul and ...
CHEN Kai-kao +3 more
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Research on Calculation Method of Hydraulic Damper Dynamic Characteristics
机车电传动, 2018 Based on the Maxwell model calculation method of hydraulic damper dynamic characteristics, the calculation method of the dynamic characteristics of the hydraulic damper was improved by theoretical analysis, with the bench test, the improved algorithm was
ZHOU Xiaozhi +4 more
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