4,856 Result(s)
within
Zheng-**ong **
Engineering
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Chapter and Conference Paper
The BEM Scheme for Axisymmetric Dynamic Torsion Problems and the Evaluation of Dynamic Stiffnesses of the Foundation
This study is devoted to the two aspects:
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Develops the BEM for axisymmetric torsion problems from statics (Mayr 1977) to dynamics;
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Article
Grazing-incidence far-infrared gas laser
First realization of a grazing-incidence gas laser is reported. For this purpose an optically pumped 496 μm CH3F laser is equipped with a cavity consisting of a diffraction grating and a resonant mirror. The obse...
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Article
Fast classification algorithm using table-look-up method
In this paper, a fast classification algorithm which uses a table-look-up method is proposed. Both theoretical and experimental results are shown: (1) in two dimensional case the computation time can be reduce...
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Article
A knowledge-based diagnosis system for automobile engines
A newly-developed knowledge-based diagnosis system for automobile engines is described in this paper. The system is based on the Hierarchical Diagnosis Principle, suggested by the authors. According to this pr...
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Article
Recovering in, Ge and Ga from zinc residues
A novel solvent extraction process has been developed to selectively recover indium, germanium and gallium from the cement residue sulfuric acid leach solutions in a hydrometallurgical zinc plant. The key work...
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Chapter
Fitting-Adaptive Importance Sampling in Reliability Analysis
In this paper a fitting-adaptive approach to importance sampling is proposed, in which a fitting density function is introduced to calculate the failure probability instead of the importance sampling density f...
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Chapter and Conference Paper
Dynamic Response of a Viscoelastic Circular Plate on a Viscoelastic Half Space Foundation
In the present paper, a dynamic problem of a thin viscoelastic circular plate under axisymmetric loads and resting on a viscoelastic half-space is discussed. This problem is reduced to a Fredholm integral equa...
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Chapter
A Simple Integral Equation Method for the Viscoelastic Quasistatic Analysis of Vertically Loaded Pile
In this paper, an integral equation method for the viscoelastic analysis of vertically loaded pile is presented. By this method, applying Betti’s reciprocal Theorem in Laplace space, two-set of nonsingular int...
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Chapter
Status of Experimental Investigations of ICF and X-Ray Lasers in SINPC
SINPC is the only place where experimental investigations of laser fusion are conducted in China. To date two Nd, glass laser facilities, LF-11(1.06 μ m, 0.53 μ m, 70 J, 0.3–0.8ns) and LF-12(1.053 μm, 2×800J, ...
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Chapter
The Dynamics of Organized Structures in the Axisymmetric Jet Mixing Layer
The near field jet mixing layer is modeled in a manner similar to that applied by Aubry et al. (1988) to the near wall region of the turbulent boundary layer. In this work the instantaneous velocity field is e...
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Article
Spatial spectrum estimation of coherent sources im**ing on nonuniform arrays
The problem of bearing estimation of coherent signal im**ing on an array of arbitrary geometry is studied. Both approaches are developed, the first one synthesizes the observed array data into the outputs of...
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Article
Computer simulated analyses on deformation and fracture of non-cracked and cracked specimens
A unified damage and fracture model, the combinatory work density model, which is suitable for either non-cracked body or cracked body has been suggested[t−7]. In the present paper, the deformation and fracture o...
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Article
Micro-experimental study of large plastic deformation for high-purity polycrystalline aluminum
This paper aims at revealing various micro- deformation characteristics, such as crystalline slip and grain boundary slide, which are recorded under scanning electronic microscope for high-purity aluminum tens...
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Article
A high accurate time-domain-advance integration method for transient elastodynamic problems
All step-by-step integration methods available at present for structural dynamic analysis use the displacement, velocity, and acceleration vectors computed at a previous interval for evaluating those at an adv...
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Article
Two millimeter solid-state source global optimum for quasi-optics power combiner
A global optimization method for discussing quasi-optical power combiner of solid-state millimeter-wave source is provided. The device we use operate at about 150 GHz and GaAs Gunn diodes are chosen here as ac.....
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Chapter
The Real Contact Length in Grinding Based on Depth of Cut and Contact Deflections
Workpiece surface integrity is greatly affected by deflections within the grinding contact zone. A new relationship for the contact length between the grinding wheel and the surface of the workpiece is introdu...
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Article
Correlation between long-range-order and ductility of intermetallic compounds
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Article
Noise removal from color images
The noise effects in color images are studied from the human perception and machine perception point of view. Three justifiable observations are made to illustrate problems related to individual color signal p...
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Article
Ductile fracture in sheets under transverse strain gradients
The fully plastic fracture of a metal sheet subjected to a small transverse gradient of tensile strain near a reinforcement is modeled as mode I fracture under transverse plane strain (TPS). Necking and fractu...
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Article
Effect of mineralogical properties of synthetic mica on its floatability
Barium fluorophlogopites were synthesized in the laboratory to investigate the effects of composition and crystal parameters on surface properties and floatability. The negative surface charge of mica is deter...
