150 Result(s)
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Article
Suggestion of a new criterion of dynamic fracture initiation
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Irwin number and ductile-brittle fracture transition
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Article
A design for ship stabilization by activated antiroll tanks
An activated antiroll tank system design for ship roll reduction was investigated. Considering the dynamics of the ship motion, tank flow, and variable-pitch impeller, a control law is derived based on optimal...
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Prediction of structural dynamic plastic shear failure by Johnson’s damage number
It is proved that Johnson’s damage number is the sole similarity parameter for dynamic plastic shear failure of structures loaded impulsively, therefore, dynamic plastic shear failure can be understood when da...
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On the similarity methods in fracture mechanics
This paper presents a brief review about the application of similarity methods to fracture mechanics. This includes some dimensionless numbers and some scaling laws in fracture mechanics, discrete scale invari...
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Two Critical Crack Propagating Velocities for PMMA Fracture Surface
Ultrasonic fractography and scanning electronic microscopy (SEM) are used to determine the direct relationship between the fracture surface morphology and the main crack velocity during the rapid rupture of po...
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Article
Molecular cloning and nucleotides sequence analysis of G1 genome segment of hantaan virus Z10 strain
The molecular cloning of the G1 genome segment of the Z10 strain of Hantaan virus and analysis of the first gene data on the currently widely used Hantavirus vaccine strain in China are presented. The G1 genome s...
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Article
Effect of ovarian stimulation with or without GnRH agonist on hamster endometrial secretion
The present study was undertaken to evaluate the endometrial secretion and synthesis of proteins in hamsters that were subjected to ovarian stimulation with or without GnRH agonist (Leuprolide Acetate, LA). Th...
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A modified specimen for evaluating the mixed mode fracture toughness of adhesives
This article introduces a specimen geometry that allows the separation of fracture energy release rates G I and G II in adhesively joined beams made of disparate materials. The...
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Article
Determining driving resistance with rebound of pile-top during pile driving
This paper presents a method to determine driving resistance with rebound of pile-top during pile driving. The soil around the pile shaft is assumed to be rigid-plastic, while that under the pile-tip is assume...
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Article
Socioeconomic risk factors for gynecologic diseases of married rural women in Zhejiang province
The authors investigated socioeconomic factors associated with prevalent gynecologic diseases in data provided by participants in Women’s Health and Health Education Study Program. In 1997, 1515 Zhejiang marri...
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Article
Hydrostatic settling velocity of sediments
The settling of sediments is an accelerative process in which the concentration of the main sediments zone will heavily influence settling velocity, but the explicit relationship between the concentration and ...
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Article
A suppressed gene in integument cells of a fiberless seed mutant in upland cotton
A fiberless seed mutant (fl) was identified in a commercial cotton (Gossypium hirsutum L.) variety Xu-Zhou 142 (FL). This phenotype is associated with lack of fiber cell initiation in the outer integument of the ...
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Article
Surface plasmon resonance analysis to evaluate the importance of heparin sulfate groups' binding with human aFGF and bFGF
Human acidic and basic fibroblast growth factors (aFGF and bFGF) are classic and well characterized members of the heparin-binding growth factor family. Heparin is generally thought to play an extremely import...
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Correlation of matrix metalloproteinase-2, −9, tissue inhibitor-1 of matrix metalloproteinase and CD44 variant 6 in head and neck cancer metastasis
This study aimed to explore the molecular mechanism in tumor invasion and metastasis. The expression of matrix metalloproteinase-2, −9 (MMP-2, MMP-9), tissue inhibitor-1 of matrix metalloproteinase (TIMP-1), c...
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Article
Determination of the genus-specific antigens in outer membrane proteins from the strains ofLeptospira interrogans andLeptospira biflexa with different virulence
Objective: To determine the existence of genus-specific antigens in outer membrane proteins (OMPs) ofleptospira with different virulence. Methods: Microscope agglutination test (MAT) was applied to detect the agg...
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Article
Off-pump coronary artery bypass grafting versus on-pump coronary artery bypass grafting: which is better in patients with chronic obstructive pulmonary disease?
To evaluate the clinic outcome of off-pump coronary bypass grafting (OPCABG) of patients with coronary heart disease and chronic obstructive pulmonary disease, we collected and analyzed 1998–2002 data on 28 pa...
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Article
Two kinds of B-basis of the algebraic hyperbolic space
In this paper, two new kinds of B-basis functions called algebraic hyperbolic (AH) Bézier basis and AH B-Spline basis are presented in the space Λ k =span{l,t...,tk-3,sinht,cosht
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Article
Optimal design of the separate type heat pipe heat exchanger
Separate type heat pipe heat exchangers are often used for large-scale heat exchanging. The arrangement of such a heat exchanger conveniently allows heat input to and output from the heat exchanger at remote l...
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Article
An effective method of determining the residual stress gradients in a micro-cantilever
A method of determining the micro-cantilever residual stress gradients by studying its deflection and curvature is presented. The stress gradients contribute to both axial load and bending moment, which, in pr...
