5,564 Result(s)
within
Zhao-**ong Zhang
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Chapter and Conference Paper
Characteristics of Nitrogen Mineralization of Paddy Soils and their Effect on the Efficiency of Nitrogen Fertilizer
As revealed by the papers published in recent years (l–4), the mineralization pattern of soil nitrogen during a rice growing season in combination with the total amount of soil nitrogen supply is an important ...
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Chapter
The Study of Precision Bar Crop** Under Axial Load
Based on the experimental results, this paper analyses mainly the mechanisms of the precision bar crop** under axial load and presents new deformation models. The models are able to explain in a better way a...
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Article
Application of the theory of branching of solutions of nonlinear equations in the estimation of pole perturbance of linear closed-loop systems
When the state and input matrices of a multivariable linear time-invariant system are perturbed, the problem of the estimation of pole perturbance of closed-loop system is considered by making use of the theor...
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Article
Methylamine metabolism and its role in nitrogenase “Switch off” in Rhodopseudomonas capsulata
In the photosynthetic bacterium Rhodopseudomonas capsulata, NH 4 + switch-off of nitrogenase activity can be mimicked by its analog, methylamine. Like NH ...
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Article
X-ray flurorescene (XRF) determination of trace rare-earth elements in geological samples using ion-exchange-resin membrane technique
Rare-earth elements in samples of geological interest were separated from other elements and concentrated onto ion-exchange membrane through ion-exchange procedures. The membrane was then used to determine the...
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Article
Somaclonal genetics of rice, Oryza sativa L.
The inheritance and variations of some traits of more than 2,000 somatic cell derived plants of rice (Oryza sativa L.) were investigated in the second and third generations (T2 and T3) of regenerated plants (soma...
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Article
Clinical researches on islet transplantation in 20 patients with insulin-dependent diabetes mellitus
20 patients with insulin-dependent diabetes mellitus have been grafted with short-term cultured islet tissue of several fetal pancreases intramuscularly (7 cases) and intraperitoneally (13 cases). After transp...
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Article
Geochemistry of gold deposits in West Hunan and East Guangxi, China
Six kinds of element association in the gold deposits in the studied region are distinguished: (1) tungsten-antimony-gold; (2) tungsten-gold; (3) antimonygold; (4) lead-zinc-silver-gold; (5) uranium-silver-gol...
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Article
Clinical manifestations, diagnosis and treatment of hypokalemic flabbiness disease
The most striking symptom of hypokalemic flabbiness disease is symmetric flaccid paralysis involving both the upper and lower extremities, which is characterized by weaker proximal muscle groups than distal on...
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Article
Stimulation of cell growth ofTetrahymena pyriformis andChlamydomonas reinhardtii by trace elements
Tetrahymena pyriformis, S1 andBJ11, andChlamydomonas reinhardtii CR were employed to study the stimulation of cell proliferation induced by a number of elements. It was observed that traces of Ga, As, Se, Rb, Sr,...
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Article
Studies on anti-infective mechanism of the traditional Chinese medicinal preparation “Anti-inflammatory Agent No. 6” — Its influence on immune functions of mice
The traditional Chinese medicinal preparation “Anti-inflammatory Agent No.6” (for injection) could raise the phagocytic index and phagocytic rate of the peritoneal macrophages by 2.5 and 3 times respectively i...
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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...
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Article
Hepatic resection under the guidance of B-mode ultrasonography
From Dec. 1987 to June 1988, we performed hepatic resection on 8 cases of primary liver cancel and 10 cases of benign liver tumor under the guidance Of B-mode ultrasound. Of 18 cases, 2 received light hemihepa...
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Article
First international conference of China on anatomical sciences
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Article
Abstracts of the Hans Selye Symposium on Neuroendocrinology and Stress
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Article
Radiographic diagonsis of jaw sarcomas
Based on preoperative angiography of three cases of jaw sarcomas and arteriography of their specimens, it has been noticed that the supplying arteries of the mandible ramus sarcoma can be directely from the ex...
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Article
Radiographic diagnoses of jaw sarcomas
The radiographic manifestations and the relationship between radiographic grades and prognosis of 76 cases of jaw sarcomas were analysised in the present study. The authors thought that the radiographic grades...
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Article
Effect of immunosuppressive factor produced by human lung cancer cell line A549 on the production and action of interleukin 1
A549, a human lung cancer cell line, spontaneously produces a tumor-derived immunosuppressive factor (TDSF) which inhibits the production and action of interleukin 1 (IL-1). After exposure of macrophages to TD...
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Article
Digital subtraction arthrography and arthrofluoroscopic dynamic observations on TMJ dysfunction syndrome
Digital subtraction arthrography and arthrofluoroscopic dynamic observation were performed for seventy cases with TMJ dysfunction syndrome. A comparative study between the findings of digital subtraction arthr...
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Article
Abnormal hemoglobins in the Silk Road region of China
A review is presented of the occurrence of 24 abnormal hemoglobins (13 α-chain variants and 11 β-chain variants) in populations in the Silk Road area of Northwestern China. Most frequently occurring were Hb D-...
