Results 81 to 90 of about 483,891 (293)
The growth of Weierstrass canonical products of genus zero with random zeros
Karpatsʹkì Matematičnì Publìkacìï, 2013 Let $zeta=(zeta_n)$ be a complex sequence of genus zero, $au$ be its exponent ofconvergence, $N(r)$ be its integrated counting function,$pi(z)=prodigl(1-frac{z}{zeta_n}igr)$ be the Weierstrass canonical product, and$M(r)$ be the maximum modulus of this ...
Yu. V. Zakharko, P. V. Filevych
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Research of wavelet analysis in hydropower station feeder fault quick detection algorithm
Dianzi Jishu YingyongA feeder microcomputer protection algorithm based on Symlets5 wavelet is proposed to address the current situation of long sampling algorithm time in commonly used microcomputer relay protection devices for hydropower station feeders, as well as the ...
Wan Haoping
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Effect of High-Temperature Heat Treatment on the Acoustic-Vibration Performance of Picea jezoensis
BioResources, 2016 The crystallinity and acoustic-vibration parameters of Picea jezoensis, including specific Young’s modulus (E/ρ),coefficient of sound-radiation resistance (R), sound resistance (ω), and the ratio of Young’s modulus to the dynamic stiffness modulus (E/G),
Lingjing Zhu, Yixing Liu, Zhenbo Liu
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Advanced Engineering Materials, EarlyView.Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth +6 more
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Yantu gongcheng xuebao, 2020 To understand the variation characteristics of dynamic shear modulus G and damping ratio with the increasing depth H of marine soils, a series of resonant column tests are performed on silty clay with various depths taken from the three borehole ...
YANG Wen-bao 1, CHEN Guo-xing 1, 2, WU Qi 1, QIN You 1, ZHAO Kai 1, 2
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Advanced Engineering Materials, EarlyView.Nickel‐based alloys are widely used in high‐temperature applications due to their excellent mechanical strength and oxidation resistance. However, properties such as high‐temperature strength and pronounced work‐hardening make them difficult to machine.
Soheil Rooein +2 more
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On the derivative and maximum modulus of a polynomial
Journal of Inequalities and Applications, 2006 If is a polynomial of degree , having all its zeros in , then it was proved by Turán that . This result of Turán was generalized by Govil, who proved that if has all its zeros in , , then , .
Govil NK +3 more
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Analysis of Structural Responses of a Horizontal Axis Wind Turbine at Maximum Aerodynamic Performance [PDF]
Journal of Applied and Computational MechanicsThis numerical analysis investigates the interplay between fluid dynamics and structural mechanics within a horizontal axis wind turbine. Tip speeds ranging from 1 to 8.1 are explored, focusing on blade structural responses at maximum aerodynamic ...
Ahmed TAIBAOUI +2 more
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Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
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Advanced Engineering Materials, EarlyView.The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann +6 more
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