Results 31 to 40 of about 11,490,915 (351)
Experimental and Numerical Study on the Strength of Repaired Steel Pipes with Composite Patches under Internal Pressure [PDF]
Mechanics of Advanced Composite Structures, 2023 Considering the old methods of maintenance and repair of oil and gas pipelines such as welding or replacing a part of the damaged pipeline which include high costs and spending a lot of time, the important usage of novel methods with lower costs such as ...
Azita Shafaee Fallah +2 more
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Tensile and Bending Strength Analysis of Ramie Fiber and Woven Ramie Reinforced Epoxy Composite
Journal of Natural Fibers, 2021 This study aims to analyze the effect of the number of woven ramie layers (plies) and ramie fiber weight as reinforcement of composite on the tensile strength and bending strength.
Zulkifli Djafar +2 more
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Highly Composite Numbers [PDF]
Proceedings of the London Mathematical Society, 1915 n ...
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On approximation numbers of composition operators
Journal of Approximation Theory, 2012 We show that the approximation numbers of a compact composition operator on the weighted Bergman spaces $\mathfrak{B}_ $ of the unit disk can tend to 0 arbitrarily slowly, but that they never tend quickly to 0: they grow at least exponentially, and this speed of convergence is only obtained for symbols which do not approach the unit circle.
Li, Daniel +2 more
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Adaptive Speaker Recognition Based on Hidden Markov Model Parameter Optimization
IEEE Access, 2020 The Hidden Markov Model (HMM) is a widely used method for speaker recognition. During its training, the composite order of the measurement probability matrix and the number of re-evaluations of the initial model affect the speed and accuracy of a ...
Yangjie Wei
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The changing rules of the composite roughness in drainage pipelines with sediments
Water Supply, 2023 The deposition of sediments with different roughness increases uncertainty in the prediction of effective Manning's n (also known as composite roughness).
Bin Sun +4 more
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The crossing number of composite knots [PDF]
Journal of Topology, 2009 It is a very old conjecture that the crossing number of knots is additive under connected sum. In other words, if K#K' is the connected sum of knots K and K', then does the equality c(K#K') = c(K) + c(K') hold? We prove that c(K#K') is at most c(K) + c(K') and at least (c(K) + c(K'))/152.
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BioResources, 2015 Nickel-Phosphorus (Ni-P) composite coatings were prepared on a poplar veneer surface via a simple electroless nickel (Ni) approach. The substrate deformation, flatness, crystalline structure, and wear resistance of the Ni-P composite coatings were ...
Yanfei Pan, Xin Wang, Jintian Huang
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Composite Material Recycling Technology—State-of-the-Art and Sustainable Development for the 2020s
Journal of Composites Science, 2020 Recently, significant events took place that added immensely to the sociotechnical pressure for developing sustainable composite recycling solutions, namely (1) a ban on composite landfilling in Germany in 2009, (2) the first major wave of composite wind
A. Krauklis +3 more
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Journal of Thermal Science and Technology, 2015 The computational efficiency of different composite schemes for the convection terms of the convection-diffusion equations is systematically studied in this paper.
Jingfa LI +4 more
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