3,118 Result(s)
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Chapter
Testosterone Synthesis by Chicken Follicular Cells
The roles of theca and of granulosa cells in the synthesis of testosterone (T) in ovarian follicle of hens have been studied. Theca cells alone synthesized no progesterone (P), and no or only negligible amount...
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Chapter and Conference Paper
Investigation on Ecological Distribution of Fungi in Paddy Soils
Paddy soils are derived from various kinds of parent materials under wet cultivation over different parts of China. They developed through repeated and alternate processes of oxidation and reduction. They are ...
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Chapter and Conference Paper
Mercury Pollution of Some Paddy Soils
This paper reports the results of an investigation on the mercury pollution of calcareous paddy soils in a commune with special reference to its effect on Hg content in grains of rice and dry-farming crops.
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Chapter and Conference Paper
Fast Neutron Induced Fission Cross Section for Pu-239
The fission cross sections of Pu-239 in the neutron energy ranges 1.0–1.6 MeV and 3.4–5.6 MeV are measured absolutely. The monoenergetic neutrons are produced from T(p,n)3He and D(d,n)3He reactions on a 2.5 MV Va...
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Chapter and Conference Paper
Absolute Measurements of 235U and 239Pu Fission Cross Section Induced by 14.7 MeV Neutrons
The cross section of uranium-235 and plutonium-239 fission induced by 14 7 MeV neutrons were measured using associated particle method with time correlation technique. The results obtained are 2.098±0.040 b an...
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Chapter and Conference Paper
Studies on Undaria pinnatifida
We have carried out a series of experiments and investigations on the brown seaweed Undaria pinnatifida, for the purpose of assisting the development of plantation culture of this alga. Our studies fall into five...
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Chapter
A New Nickel-Free Cryogenic Steel, 06A1NbCuN, and Its Fracture-Safety Evaluation
Nickel steel has been used extensively by the petrochemical industry since nickel significantly increases the low temperature toughness of steel. However, these steels are expensive and nickel is in short supp...
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Chapter and Conference Paper
On strong solution, uniqueness, stability and comparison theorems for a stochastic system with poisson jumps
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Chapter and Conference Paper
On the Internal Control of Production Systems
After investigating several enterprises with outstanding achievement, the author has come to the conclusion that it is utmost importance to strengthen the internal contro/.. of production systems, if an indust...
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Chapter
CSAT Antibody Interferes with in Vivo Migration of Somitic Myoblast Precursors into the Body Wall
An involvement of the fibronectin receptor in muscle cell behavior has been demonstrated previously only in vitro (Chiquet et al., 1979; Neff et al., 1982; Greve and Gottlieb, 1982; Turner et al., 1983). By graft...
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Chapter and Conference Paper
Finite Element Analysis of Creep Crack Growth Based on Anisotropic Creep Damage Theory
An anisotropic creep damage theory is applied to analyse a crack propagation problem typical of the fracture mechanics. The process of crack growth initiated from an internal crack due to the anisotropic creep...
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Chapter and Conference Paper
A big event of latest Ordovician in China
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Chapter
Effect of Static Loading on the Fracture Toughness of Indentation-Precracked Alumina
After a static loading or fatigue test, the critical stress intensity factor of indentation-precracked specimens of alumina increases by a factor of 30%. The fatigue may effectively remove the residual stresse...
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Chapter
Rice (Oryza sativa L.): Factors Affecting Androgenesis
The frequency of the induction of androgenesis in cultured anthers in general is rather low. In order to utilize anther culture in crop breeding programmes, it is essential that the haploids are produced in la...
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Chapter and Conference Paper
An Intelligent Vision System for Robot
An intelligent vision system, LONGJIANG, is studied. In this paper we focus on the cooperation between hardware and software to meet some specified requirements, such as real-time, cost-performance, etc. A vie...
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Chapter and Conference Paper
P-Prolog: A parallel logic language based on exclusive relation
This paper presents a parallel logic programming language named P-Prolog which is being developed as a logic programming language featuring both and- and or-parallelism. Compared with the other parallel logic ...
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Chapter and Conference Paper
Response to an Active Vitamin D3 Metabolite of Transplantable Human Myeloid Leukemic Cell Lines in Adult Nude Mice
Tumorigenicity of human myeloid leukemic cell lines KG-1, U937, HL-60 and K562 was studied in adult cyclophosphamide-primed nude mice (CPNM). All inocula except KG-1 consistently grew nonmet-astatic subcutaneo...
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Chapter
Study of Small but Complete Molecules — Na2
Several years ago we felt somewhat puzzled to hear that “A diatomic molecule is a molecule with one atom too many.” This was said by Professor Arthur L. Schawlow during one lecture in a series on High Resoluti...
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Chapter
Embryo Culture
The search for ideal trees with desirable characteristics has been on for many decades with the hope of using those trees to generate progenies or rooted cuttings. These propagules are needed to reforest the v...
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Chapter
The Effects of High and Low Chromium Yeast Supplementation on Glucose Metabolism of Noninsulin Dependent Diabetic Patients
Chromium in the trivalent state is an essential element required for normal carbohydrate and lipid metabolism; in the form of hexavalent compounds it is a carcinogen. Chromium deficient animals display impaire...
