279 Result(s)
within
Chapter
**ao-Liang **e
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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 and Conference Paper
The Fate of Nitrogen Fertilizer in Paddy Soils
The balance sheet of fertilizer nitrogen in the soil-plant system provides basic information for evaluating agricultural practices in general and for the rationalization of fertilization system in particular. ...
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Chapter and Conference Paper
On Rice Nutrient Disorder and its Diagnosis in China
Rice nutrient disorder has been widely studied in Asiam countries(1). In recent years, with the rapid expansion of cultivated area of rice in our country, this problem involved in both new and old rice regions...
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Chapter and Conference Paper
Effect of Nitrapyrin on the Inhibition of Nitrification in Some Paddy Soils of China
Nitrification-denitrification is an important mechanism of N loss in paddy soils. How to prevent such loss is a matter of primary importance (1–4). The present article deals with the effect of Nitrapyrin (2-ch...
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Chapter
An Analysis of Operative Results on Late Deformities of Burnt Hands
Between 1973 and 1981, 289 hands (225 cases) with late burn deformities were operated upon in our clinic. Satisfactory long term results were obtained in 196 hands (153 cases) (Figures 14.1-14.4). For further ...
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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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Chapter and Conference Paper
Reactions in the Presence of Cyclodextrins
The bromination of toluene and the oxidation of α-pinene were studied in presence of cyclodextrins. The bromination reaction has been carried out in acetic acid of different concentrations at different tempera...
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Chapter
The Fine Structure of Native DNA Studied with the Scanning Tunneling Microscope
The advantages of scanning tunneling microscopy (STM) for the study of surface structure down to atomic level, such as simplicity of operation, Ångstrom resolution, and imaging in a variety of environments, in...
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Chapter and Conference Paper
Metropolis Methods, Gaussian Proposals and Antithetic Variables
We investigate various aspects of a class of dynamic Monte Carlo methods, that generalises the Metropolis algorithm and includes the Gibbs sampler as a special case. These can be used to estimate expectations ...
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Chapter
Synthesis, Structure and Properties of some Mo—Fe—S, Mo—S Model Compounds for the Mo—Fe Center and the First Coordination Sphere of the Mo—Atom in Nitrogenase
Nitrogenase is a two-component redox enzyme that catalyzes the reduction of dinitrogen to ammonia. The structure and function of Mo in the MoFe-protein of this enzyme has been the subject of a number of invest...
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Chapter and Conference Paper
Infrared Remote Sensing of Surface Temperature and Surface Spectral Emissivities
This paper presents a method based on the concept of temperature-independent spectral indices (TISI) to retrieve both the spectral emissivities and land surface temperature from AVHRR data. First, the bi-direc...
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Chapter
Algebraic Approach to Ultrasonic B-Mode Imaging for Resolution Enhancement
In this paper we investigate an iterative algebraic algorithm for resolution enhancement in ultrasonic B-mode imaging. The algorithm, called iterative back reconstruction (IBR), considers the measured signal a...
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Chapter
Blood Flow Assessment Using Wavelet Transform Based Cross-Correlation Technique
In this paper we present a wavelet transform based cross-correlation (WTCC) technique for assessment of blood flow velocity. Unlike the conventional windowed cross-correlation (WCC) technique, the proposed met...
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Chapter and Conference Paper
On the Inverse Problem in Variational Calculus
Calculus of variations is a very important tool to study mechanics, physics and other else technical science. The importance of variational method has been tested by a lot of facts in many fields. But how to f...
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Chapter
Regional nitrogen budgets and riverine N & P fluxes for the drainages to the North Atlantic Ocean: Natural and human influences
We present estimates of total nitrogen and total phosphorus fluxes in rivers to the North Atlantic Ocean from 14 regions in North America, South America, Europe, and Africa which collectively comprise the drai...
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Chapter
Fate and management of fertilizer nitrogen in agro-ecosystems
Since the 1950s the consumption of fertilizer N in China has increased dramatically. It was only 6000 t in 1950, and increased to 13.96 million t in 1987 (ISFCAAS 1986; ECACA 1988), accounting for 19% of the t...
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Chapter
Mineralization of soil nitrogen
Mineralization of organic N and immobilization of mineral N are two opposing processes taking place simultaneously in soils. Their relative rates are influenced by a number of factors, especially the quantity ...
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Chapter
Nitrogen balance and cycling in agroecosystems of China
Nitrogen cycles in agro-ecosystems by entering into the system through different routes, undergoing a series of interlinked transformations and transfer processes and exiting from the system by different route...
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Chapter
Nitrification
Nitrification is the process by which microorganisms oxidize ammonium to nitrate and derive energy from the oxidation for subsistence. Since nitrification is inter-linked with the mineralization-immobilization...
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Chapter and Conference Paper
Task decomposition based on class relations: A modular neural network architecture for pattern classification
In this paper, we propose a new methodology for decomposing pattern classification problems based on the class relations among training data. We also propose two combination principles for integrating individu...
