Results 21 to 30 of about 81,828 (263)
Numerical Simulations and Experiments on Single-Tooth Rock-Breaking
Machines, 2022 The rock-breaking efficiency of a drilling tool directly affects the production costs and progress of foundation construction. It is essential to understand the mechanism of mechanical rock-breaking to improve rock-breaking efficiency.
Heyuqiu Li +5 more
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Influence of Kind of Weft Yarn on Properties of the Seersucker Woven Fabrics
AUTEX Research Journal, 2016 Seersucker woven fabrics create a unique 3D woven structure. Such 3D structure is usually received on loom by an application of two warps of different tension. However, a kind of the weft yarn also significantly influences the structure and properties of
Matusiak Małgorzata, Frącczak Łukasz
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Singularity theory and forced symmetry breaking in equations [PDF]
Publicacions Matemàtiques, 2010 A theory of bifurcation equivalence for forced symmetry breaking bifurcation problems is developed. We classify (O(2), 1) problems of corank 2 of low codimension and discuss examples of bifurcation problems leading to such symmetry breaking.
Furter, Jacques-Elie +2 more
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Analysis of Mechanical Properties of Fabrics of Different Raw Material
Medžiagotyra, 2011 The study analyzes dependence of mechanical properties (breaking force, elongation at break, static friction force and static friction coefficient) on integrated fabric structure factor j and raw material density r, among the fabrics of different raw ...
Aušra ADOMAITIENĖ, Eglė KUMPIKAITĖ
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Charge-symmetry-breaking three-nucleon forces [PDF]
Physical Review C, 2005 14 pages, 3 ...
Friar, J. L. +2 more
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Experimental Study on Conglomerate Breaking Characteristics of Conical PDC Cutter
Shiyou jixie, 2021 In order to further improve the rock breaking efficiency and the adaptability of drilling hard and complex strata of PDC bit, a comprehensive test device of rock breaking by PDC cutter was developed. The test device was used to conduct experimental study
Xu Weiqiang +6 more
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Force calculation model of TBM disc cutter based on rock breaking mode
Meitan xuebao, 2023 The rock breaking force of the disc cutter is the core parameter for studying the efficiency and safety of TBM excavation in hard rock tunnels, the key to improve the accuracy of the calculation model is how to match the calculation model with the rock ...
Jiulei CAO +5 more
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Yantu gongcheng xuebaoThis study addresses the issues of severe wear and low rock-breaking efficiency of shaft sinking by drilling methods in the Jurassic strata of Western China, focusing on milled-tooth roller cutter commonly used in this drilling method.
CHENG Hua 1, 2, WANG Xiaoyun 1, YAO Zhishu 1, ZHU Jian 3, RONG Chuanxin 1, FU Xinpeng 4
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Experimental Analysis of the Tensile Properties of Painting Canvas
AUTEX Research Journal, 2016 In this paper, the practical application of uniaxial testing of painting canvas for determining its mechanical properties is presented. Painting canvases have a complex composite structure whose mechanical properties are considerably improved in relation
Penava Željko +2 more
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Controlling Rice Leaf Breaking Force by Temperature and Moisture Content to Reduce Breakage
Agronomy, 2020 Leaf fragments and grain mixture produced by rice threshing with a combine harvester seriously affects the subsequent grain cleaning efficiency. In this paper, rice leaf breaking force was tested at different temperatures and moisture contents to analyze
Zhong Tang +4 more
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