45,611 Result(s)
within
Zheng-**ong **
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Chapter
Some Advances on Azolla Research
In China most azolla is cultivated in the winter-spring season because it survives only with difficulty in large scale through the summer due to high temperature, pests, disease and algae. To extend azolla gro...
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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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Chapter
The Frequency of Sister Chromatid Exchange in Peripheral Lymphocytes of Workers Exposed to TNT
Using the technique of 5-bromodeoxyuridine incorporation and differential staining, the SCE frequencies of 20 male TNT workers and 20 healthy males (control group) were scored and analyzed. The subjects of stu...
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Induction of Tumor in the Progeny of Dinitrosopiperazine-Treated Pregnant Rats
The hypothesis of this study is that if initiation occurs during the embryonic life, tumors might develop early in those animals exposed to promoters after birth. Four groups of rats were used in this experime...
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Article
A study of long-period sea level changes in the China Sea areas
The paper describes the seasonal and interannual changes in sea level in the China Sea. The six long-period tidal constituents (Sa, Ssa, Mm, Mf, MSf and MN) which are closely related to sea level changes have bee...
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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
Extended variational principle in nonlinear theory of elasticity
From the extended energy functional, a unified variational principle and an extended variational principle are given and proved in this paper. It is about the non-conservative, abrupt and divided domains stati...
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Article
The exponential asymptotic solution of differential equation
In this paper, the exponential asymptotic solution (E.A.S.) of differential equation is discussed. Firstly, E.A.S. of the second-order differential equation is studied and the orthogonal conditions of the unif...
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Article
Studies on the calcium antagonistic action of tetrandrine: VI. Comparison of effects of tetrandrine, verapamil and propranolol on myocardial blood flow
By86RbCl-extraction method, the effects of tetrandrine (Tet), verapamil (Ver) and propranolol (Pro) on myocardial blood flow of mice were studied. Both I.P. Tet 100 mg/kg and Ver 5 mg/kg increased the blood flow,...
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Article
Hopf bifurcation phenomenon in catalytic reaction
In this paper, we intend to discuss Hopf bifurcation phenomenon under the effect of the periodic small perturbation on local temperature fluctuations (flikering) phenomenon of catalytic reaction. With the obta...
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Article
On singular perturbation method of perturbed bifurcation problems
In this paper, the general mathematical principle is overall explained and a new general technique is presented in order to calculate uniformly asymptotic expansions of solutions of the perturbed bifurcation p...
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Article
CH transform
In this paper, a new unitary transform is presented. Some of the new unitary transform properties are discussed, and a fast algorithm is also given. The transform has less operations as compared to the fast Ha...
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Article
Distribution characteristics of boron and lithium in brine of Zhacang Caka salt lake, **zang (Tibet), China
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Composition of the Brine. The specific gravity of its surface brine is from 1.073 to 1.291. Its salinity is 2...
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Chapter
Second Toe to Thumb Reconstruction — Long Term Observation on a Child
The second toe to thumb reconstruction is a classic method for adult patients1—5. Here we report a child having had his thumb reconstructed with his own second toe. A 4-year follow-up study revealed satisfactory ...
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Chapter
Examination of the Development of 63 Full-Term, Small-for-Date Chinese Children
This study was undertaken to offer some information on the development of small-for-date (SFD) children with intrauterine growth retardation.
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Chapter
Development of 129 Chinese Children with Low Apgar Scores
Neonatal asphyxia is a common and serious complication at birth, often leading to neonatal death or later developmental defects. The development of 129 survivors of birth asphyxia (Apgar scores of 7 or less at...
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Chapter
Reconstruction of Metacarpophalangeal Joint by Free Vascularized Autogenous Metatarsophalangeal Joint Transplant
The metacarpophalangeal (MP) joint is essential to hand function, which will suffer severe deterioration in the event of traumatic or arthritic stiffening. Early this century, a stiffened MP joint was replaced...
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Chapter and Conference Paper
The Mathematical Modelling of Cocurrent Spray Drying
A mathematical model has been developed with the droplet size distribution being taken into account with a volume frequency function. The model is adequate in describing the overall behaviour of spray dryers. ...
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Chapter
Medullary Cavity — A Substitute for Venous Return in Vascularized Bone Transplantation — An Experimental Study
Being a complex process, bone union has been an important subject of research for many years. Experimental island bone transplantation with both arterial and venous pedicles was performed by Strauch1 (1971) and O...
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Chapter
Surgical Management of Traumatic Laryngotracheal Stenosis
Trauma and infections (tuberculosis, syphilis) are among the commonest causes of cicatricial laryngotracheal stenosis. The patient may breathe freely for a long lapse of time through a relatively narrowed lary...
