280 Result(s)
within
Hong** Wei
Engineering
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Article
Analysis of 2-D em problems on a compound rectangular region by the method of lines
In this paper an extended method of lines for analyzing the electromagnetic boundary value problems is presented and applied to the waveguide with a compound rectangular cross-section. A number of numerical re...
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Article
Analysis of dipole and dipole array by a collocation technique with multipoint weighting
A collocation method with multipoint weighting is presented in this paper. It converges as rapidly as the Galerkin method but needs less computation effort. By means of the technique with Gauss points (superco...
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Article
On convergence of collocation technique
In this paper, the convergence rate at matching points of collocation technique is shown to beO(h 2), that is just the same as the global convergence rate of Galerkin’s method with triangular puls...
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Article
A simplified CAD of millimeter-wave diplexer with E-plane T-junction and all-metal insert filters
An equivalent circuit theory design of a class of rectangular waveguide E-plane T-junction diplexer with E-plane all-metal insert filters is presented. Element values of equivalent circuit models of E-plane T-...
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Article
CAD of millimeter wave oscillators with the FDHB technique
In this paper the modelling, analysis and optimization of millimeter wave oscillators are investigated by using the a frequency-domain harmonic balance technique (FDHB), where the external-circuit impedances l...
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Article
Novel Mur condition in frequency domain and its application
A novel finite-difference (FD) approximation in frequency-domain for the Mur boundary condition is presented in this paper. Combined with the FD equations derived for inhomogeneous anisotropic media, this boun...
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Article
Reactive processing and mechanical properties of Al/SiCP composite
The reactive process for Al/SiCP composite was studied. SiC particles were in-situ coated by the exothermal reaction of SiC-Ti powder compact in Al melt bath, and easily incorporated into Al melt. The detailed st...
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Article
Hurst exponent analysis of financial time series
Statistical properties of stock market time series and the implication of their Hurst exponents are discussed. Hurst exponents of DJIA (Dow Jones Industrial Average) components are tested using re-scaled range...
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Article
Numerical simulation for deformation of nano-grained metals
Electro-deposition technique is capable of producing nano-grained bulk copper specimens that exhibit superplastic extensibility at room temperature. Metals of such small grain sizes deform by grains sliding, w...
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Article
Probability density function method for observing reconstructed attractor structure
Probability density function (PDF) method is proposed for analysing the structure of the reconstructed attractor in computing the correlation dimensions of RR intervals of ten normal old men. PDF contains impo...
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Article
Study onBombyx mori silk treated by oxygen plasma
Study of the morphology, aggregation structure and properties ofBombyx mori silk treated by low temperature oxygen plasma showed that slight flutes appeared on the surface ofBombyx mori silk fiber and that its su...
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Article
Concurrent object-oriented programming based on MPI
Object-oriented model possesses inherent concurrency. Integration of concurrency and object-orientation is a promising new field. MPI is a message-passing standard and has been adopted by more and more systems...
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Article
On the dissipation of negative excess porewater pressure induced by excavation in soft soil
Unloading induces negative excess porewater pressure in soil mass around a foundation pit during excavation. In this work, the dissipation rule of negative excess porewater pressure after excavation was studie...
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Article
Design of fan beam optical sensor and its application in mass flow rate measurement of pneumatically conveyed solids
The fan-beam optical sensor is made up of many semiconductor lasers and detectors fixed around the wall alternately at a cross section of pneumatically conveying pipe. When the sensor works, a scanning light s...
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Article
Numerical simulation of the oscillatory flow around two cylinders in tandem
A numerical study on oscillatory flow past two cylinders in tandem is carried out. The Reynolds-averaged Navier-Stokes equations are solved using a finite element method (FEM) with a k-ω turbulence closure. The n...
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Article
A new feature extraction method using the amplitude fluctuation property of target HRRP for radar automatic target recognition
Due to the aspect sensitivity of high-resolution range profile (HRRP), traditional radar HRRP target recognition methods usually use average profile within some target-aspect region as the target-aspect templa...
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Article
A 2-dimensional impact driven precise actuator using piezoelectric bimorphs
A new precise actuator is proposed, which is actuated by the impact force of an end-loaded piezoelectric bimorph cantilever, and bears two degrees of freedom for translation and rotation. The dynamic character...
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Chapter and Conference Paper
A Novel Battery System Combined H2-FeCO3 Generation
In order to solve the difficult problems of greenhouse effect and energy resource in short supply, develo** a battery system utilizing carbon dioxide and ferrous waste has significant potential in buffering ...
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Chapter and Conference Paper
Experimental Study on the Combustion Characteristics of Municipal Solid Waste
In our country, municipal solid waste (MSW) of low heating value and high water content are always burnt in their original forms. Based on the constituent of Shijiazhuang City’s MSW, nine typical constituent o...
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Chapter
A Dissimilation Particle Swarm Optimization-Based Elman Network and Applications for Identifying and Controlling Ultrasonic Motors
In this paper, we first present a learning algorithm for dynamic recurrent Elman neural networks based on a dissimilation particle swarm optimization. The proposed algorithm computes concurrently both the evol...
