134 Result(s)
within
English
Engineering
Classical and Continuum Physics
Yi**ang Chen
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Article
Reynolds-stress modelling of turbulent rotating flows
The present analysis shows that the EVM can not reflect the turbulence physics in non-inertial frame. The effects of Coriolis force on turbulence is embodied naturally in the Reynolds-stress transport equation...
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Article
Piezoelectric Analogy of Generalized Torsion in Anisotropic Elasticity
We consider a piezoelectric body bounded by a cylindrical surface in which all cross sections are of the same geometry. Suppose on the lateral surface the body is loaded in such a way that the stress and elect...
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Article
Saint-Venant Torsion of a Two-Phase Circumferentially Symmetric Compound Bar
This work is concerned with the Saint-Venant torsion problem of a two-phase circumferentially symmetric compound prismatic bar. By generalizing a method originally proposed by Packham and Shail [12], we demons...
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Article
Theoretical study on the ideal open cycle of the liquid nitrogen engine
This article described the characteristics of the liquid nitrogen engine’s ideal open cycle. Using two interconnecting strokes to achieve the power output can mitigate the trade-off between high efficiency and...
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Consistency maintenance for constraint in role-based access control model
Constraint is an important aspect of role-based access control and is sometimes argued to be the principal motivation for role-based access control (RBAC). But so far few authors have discussed consistency mai...
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Article
Purification and relationship with gastric disease of a 130 kDa (CagA) protein ofHelicobacter pylori
Objective: The aims of this research were to purify and identify the 130 kDa (CagA) protein ofH. pylori clinical isolate HP97002 and evaluate the relationships between the purified 130 kDa (CagA) protein and gast...
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Article
Recent progress in nonlinear eddy-viscosity turbulence modeling
This article presents recent progresses in turbulence modeling in the Unit for Turbulence Simulation in the Department of Engineering Mechanics at Tsinghua University. The main contents include: compact Non-Li...
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Article
A Confocally Multicoated Elliptical Inclusion under Antiplane Shear: Some New Results
The problem of a confocally multicoated elliptical inclusion in an unbounded matrix subjected to an antiplane shear is studied. Making use of the complex potentials and conformal map** techniques, we show th...
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Article
Multiplicative perturbations ofC-regularized resolvent families
This paper presents two new theorems for multiplicative perturbations ofC-regularized resolvent families, which generalize the previous related ones for the resolvent families.
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Article
A flower image retrieval method based on ROI feature
Flower image retrieval is a very important step for computer-aided plant species recognition. In this paper, we propose an efficient segmentation method based on color clustering and domain knowledge to extrac...
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Article
A sustainable development OCR system in CADAL application
This paper briefly introduces the main ideas of a sustainable development OCR system based on open architecture techniques and then describes the construction of an optical character recognition (OCR) center b...
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Article
The shape and stability of wall-bound and wall-edge-bound drops and bubbles
The behavior of wall-bound drops and bubbles is fundamental to many natural and industrial processes. Key characteristics of such capillary systems include interface shape and stability for a variety of gravit...
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Article
A new all-zero 4×4 block determination rule for integer transform and quantization in AVS-M encoder
A new all-zero block determination rule was used to reduce the complexity of the AVS-M encoder. It reuses the sum of absolute difference of 4×4 block obtained from motion estimation or intra prediction as para...
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Article
Jacquard image segmentation using Mumford-Shah model
Jacquard image segmentation is one of the primary steps in image analysis for jacquard pattern identification. The main aim is to recognize homogeneous regions within a jacquard image as distinct, which belong...
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Article
SSC: Gesture-based game for initial dementia examination
This paper presents a novel system assisting medical dementia examination in a joyful way: the object just needs to play a popular game SSC against the computer during the examination. The SSC game’s target is...
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Article
Study on micronozzle flow and propulsion performance using DSMC and continuum methods
In this paper, both DSMC and Navier–Stokes computational approaches were applied to study micronozzle flow. The effects of inlet condition, wall boundary condition, Reynolds number, micronozzle geometry and Kn...
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Article
Automatic relational database compression scheme design based on swarm evolution
Compression is an intuitive way to boost the performance of a database system. However, compared with other physical database design techniques, compression consumes large amount of CPU power. There is a trade...
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Article
Free-Space Optical communication using visible light
The possibility of visible red light laser being used as signal light source for Free-Space Optical (FSO) communication is proposed. Based on analysis of transmission in atmospheric channel concerning 650 nm l...
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Article
Experimental observation on a small-scale thermoacoustic prime mover
A miniature thermoacoustic prime mover, consuming heat to radiate sound, may be considered as a potential way of heat management in microcircuits because of its simplicity and stability. A prototype with varia...
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Article
Simulation of bluff body stabilized flows with hybrid RANS and PDF method
The motivation of this study is to investigate the turbulence–chemistry interactions by using probability density function (PDF) method. A consistent hybrid Reynolds Averaged Navier–Stokes (RANS)/PDF method is...
