6,077 Result(s)
within
Chapter
Zheng-**ong **
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Chapter and Conference Paper
A Comparative Study on Methods of Tillage of Paddy Soils in Taihu Lake Region
The principal rotation system in Taihu Lake Region is rice-wheat rotation. The traditional method of tillage is such that in the cultivated layer there is an upper sub-layer with muddy paste and a lower sub-la...
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Chapter and Conference Paper
The Status of Microelements in Relation to Crop Production in Paddy Soils of China: I. Boron
The paddy soils are a kind special cultivated soils, Their chemical characteristics are radically different from those of normal upland soils. Some nutrients are moblized and translocated, while others remain ...
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Chapter and Conference Paper
The Status of Microelements in Relation to Crop Production in Paddy Soils of China: III. Zinc
Zinc deficiency is the most common problem in paddy soils. Since the disorder was reported, it has become recognized as an important and widespread problem(l). In China, zinc deficiency is also found and it di...
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Chapter
Scanning Photoacoustic Microscopy and Detection of Subsurface Structure
A scanning photoacoustic microscopy with a surface imaging resolution of about 2µm has been established. Some images of the subsurface structure of metals and layered materials have been obtained by measuring ...
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Chapter
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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Chapter and Conference Paper
A Retarding-Accelerating Energy Analyser for SIMS
It is well known that secondary ion energy spectra can give us much interesting information. As a very high energy resolution is not needed for most cases, the retarding-accelerating energy analyser (derived f...
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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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Chapter
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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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...
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Chapter and Conference Paper
Surface-Enhanced SHG Study on Langmuir-Blodgett Mono-Molecular Layers
There is growing interest in the study of the classic Langmuir-Blodgett (LB) mono-molecular layers in recent years. Linear optical properties of LB film have been studied thoroughly with surface plasmon spectr...
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Chapter and Conference Paper
The Main Features of the 1.56-M Telescope and its Status Quo
This telescope was designed for determining the trigonometric parallaxes of faint stars. The otpical configuration is a Ritchey-Chrétien system and has only a f/10 Cassegrain focus for photographic work.
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Chapter and Conference Paper
Design Characteristics of the 1.56 m Astrometric Telescope and its Usage in Astrometry
The 1.56m astrometric telescope (Fig. 1) is designed mainly for determining trigonometric parallaxes of faint stars.
