2,833 Result(s)
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Chapter
Conference Paper
**n Zhen
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Chapter and Conference Paper
Characteristics of Geographical Distribution of Fertile Paddy Soil in Fujian Province
Being located along the southeast coast of China, Fujian Province belongs to south and middle subtropical zone, mild in climate and abundant in rainfall. About 80% of the total area of the province are covered...
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Chapter and Conference Paper
Investigation on Nitrogen-Fixing Bacteria in Rice Rhizosphere
It has been confirmed in many laboratory and field experiments that the nitrogen-fixing activity in rice rhizosphere is rather high. There has been a number of different nitrogen-fixing bacteria isolated from ...
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Chapter and Conference Paper
On the Forming of Waterlogged Condition in the Cultivated Horizon of Paddy Soils in Shanghai During Dry Farming Period and the Approach to its Elimination
The rainfall in Shanghai is abundant, amounting to 500 mm during the growing season of wheat, barley and naked barley. The waterlogged condition of the cultivated horizon of paddy soils is a grave obstacle to ...
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Chapter and Conference Paper
Characteristics of Some Types of Paddy Soil in Northeast China
Northeast China situated in temperate zone is charaterized by the continent and monsoon climate. It is hot and humid in summer, cold and dry in winter; the annual rainfall is about 300–1000 mm; and the ninimum...
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Chapter and Conference Paper
Studies on Nitrogen Fixation by Association of Bacteria with Rice Root
It is known that nitrogen fixation in the paddy fields is more effective than that in the upland soils, and is therefore of great significance to an intensive study on the associated function of rice and bacte...
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Chapter and Conference Paper
Chemical Equilibria of Sulfides as Studied with a Hydrogen Sulfide Sensor
Owing to its theoretical and practical significance, the subject of sulfides in paddy soils has attracted much attention to many soil scientists(l,2) For the determination of sulfides in soils, chemical method...
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Chapter and Conference Paper
Ion Implantation and Laser Annealing of HgCdTe
Junction models of ion-implanted PV HgCdTe detectors are discussed. Different infrared intrinsic absorption mechanism of these devices and devices with thermally diffused junction are analysed and compared. Ef...
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Chapter and Conference Paper
A note on the almost everywhere convergence of Bochner-Riesz means of multiple conjugate Fourier series
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Chapter and Conference Paper
On the almost everywhere convergence of Bochner-Riesz means of multiple Fourier series
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Chapter and Conference Paper
Perturbations Due to the Asteroid Belt
A new expansion for the gravitational potential of the asteroid belt is derived in this paper on the basis of binomial expansions. Its advantages ares (1)the unified form both for the inner and for the outer r...
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Chapter and Conference Paper
A Study on Argon Ion Gun in SIMS
In order to use SIMS for static state, swee** and composition profiling analysis on specimen, an ion source of electron impact ionization type with beam-forming electrode [1,2] is investigated, besides the p...
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Chapter and Conference Paper
Studies on the polysaccharide of Eucheuma. III: Effects of alkali metal ions on the solution properties and gel structures of the polysaccharide from Eucheuma gelatinae
In two previous papers (Zheng, Chen et al. 1981; Zheng, Lin et al. 1981a, b), examined the constituents and structure of the Eucheuma gelatinae polysaccharide and its rheological properties in solution at differe...
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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 and Conference Paper
Sources of Flow Variability in Barotropic Primitive Equation Models
Numerous observational studies of the Northern Hemisphere circulation have discussed the regional characteristics of transient eddies (paegle and Paegle, 1975, 1976; Blackmon et al., 1976; Blackmon et al., 197...
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Chapter and Conference Paper
A Comment on the Seyfert Environment
The study on the Seyfert environment has been of considerable interest lately, since it is believed that the tidal force of a close companian may drive gas into the inner region and either fuel nuclear activit...
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Chapter and Conference Paper
A difference method for degenerate hyperbolic equations of second order
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Chapter and Conference Paper
Isolation and characterization of hydrogenase from Spirulina platensis
Hydrogen is the ideal potential fuel source, free of pollution. Thus, research on hydrogen metabolism has been emphasized by many scientists. The formation of molecular hydrogen has stimulated great interest i...
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Chapter and Conference Paper
Clinic Experience in Endoscopic YAG Laser Therapy for Large Intestinal Polyps
YAG laser is characterized by its strong perforative ability and the ability of cutting through human body tissues. Optical glass fiber led into human body by the endoscope can be used to resect the polyps in ...
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Chapter and Conference Paper
A New Method of Structural Modelling
The problem how to obtain the mathematical model of structure dynamics system from the test modal parameters is discussed in this paper. A new method of structural modelling is presented, using the orthogonali...
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Chapter and Conference Paper
Fractal Turbulence and Origin of Large Scale Structure
Observations show that the large scale distribution of galaxies is like a selfsimilar spong /1/. The term “sponge” is due to most of volume observed in the Universe being devoid of galaxies /2/. there are many...
