Results 81 to 90 of about 6,422 (241)
Механика машин, механизмов и материалов, 2010 The influence of the magnetic field on free and forced, flexural and shear vibrations of a three-layered composite beam containing interlayer magnetorheological core is studied.
G.I. Mikhasev +2 more
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Advanced Functional Materials, EarlyView.This review establishes structure‐property‐mechanism relationships across six modification strategies for V‐based oxide water‐splitting electrocatalysts: lattice engineering, heteroatom doping, interface engineering, carbon‐based hybridization, morphology engineering, and surface reconstruction and pre‐catalyst design, where dissolution is reframed as ...
Youness El Issmaeli +4 more
wiley +1 more source
THE END-GRAPH APPROACH TO SOLVING PROBLEMS OF THE DYNAMICS OF BEAM STRUCTURES
Nauka ta progres transportu, 2008 On the basis of a linear graph theory, a method of initial parameters and associated matrices the universal analytical approach to calculation of free and forced vibrations of rod constructions is offered.
O. S. Raspopov
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Oscillators: Phenomenological mappings and analogies: First part: Mathematical analogy and chains [PDF]
Scientific Technical Review, 2015 New analytical and numerical results of dynamics for both linear and nonlinear system with two degrees of freedom are presented. For a mechanical chain system with two degrees of freedom, oscillations are investigated analytically and numerically with ...
Hedrih-Stevanović Katica +4 more
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Advanced Functional Materials, EarlyView.Keratin recovered from animal‐hair textile waste is fractionated and blended with cellulose to produce continuously spun hybrid fibers. Selecting the high‐molecular‐weight keratin fraction enables 30 wt.% keratin incorporation while maintaining high strength in dry and wet states.
Mian Zhai +6 more
wiley +1 more source
Free and forced vibrations of cantilever beams with viscous damping [PDF]
, 1965 Free and forced vibrations of cantilever beam with viscous damping - equations of motion for shear, deflection, velocity, bending moment, and ...
Stanek, F. J.
core
Analysis of Vibrational Performance of A Piezoelectric Micropump with Diffuse/Nozzle Microchannel
Nanotechnology and Precision Engineering, 2018 : Piezoelectric transducers of different external diameters are designed and fabricated and incorporated into micropumps. Through finite element analysis, it is shown that the volume efficiency of the micropump reaches its maximum value for the first ...
Yanfang Guan, Xiang Li
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Electron‐Deficient Linkers Enhance H2O2 Electrosynthesis in Covalent Organic Frameworks
Advanced Functional Materials, EarlyView.Linker π‐conjugation modulates the electronic state of the Ni–N4 centers and their interaction with the key *OOH intermediate while preserving the primary coordination motif. NiPc‐PTDA delivers an H2O2 selectivity of 92% and a production rate of 34.8 mol gcat−1 h−1, highlighting linker electronic properties as a molecular design parameter for NiPc ...
Houting Xie +7 more
wiley +1 more source
Dynamics of a Vertical Unbalanced Gas Centrifuge Supported by Magnetic Bearings
Engineered ScienceThe gas centrifuge is modeled as a rigid rotor supported by two magnetic bearings with eight-pole structures. To describe the system dynamics, the coupled nonlinear ordinary differential equations (ODE) of the second order are derived, to solve which the
Almatbek Kydyrbekuly +3 more
doaj +1 more source
Differential quadrature method for vibration analysis of beams on viscoelastic foundations
上海师范大学学报. 自然科学版, 2015 This paper investigates transverse vibrations of finite Euler-Bernoulli beams resting on viscoelastic foundations.It studies natural frequencies and dynamic response of an elastic beam subjected to a harmonic load.The differential quadrature methods(DQ ...
PENG Li, WANG Ying
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