Ⅰ. INTRODUCTION The crux of typhoon prediction is the prediction of typhoon track. In recent years many objective prediction models have been proposed, particularly the statistical-dynamical type has become comparati...Ⅰ. INTRODUCTION The crux of typhoon prediction is the prediction of typhoon track. In recent years many objective prediction models have been proposed, particularly the statistical-dynamical type has become comparatively the more effective one, e. g. the USA NHC-73, the Shanghai SD75 and the Zhejiang ZMI-80 have all proved to be superior to the pure statistical models in practice. In China, due to lack of展开更多
Coroban (Chlorpyrifos) and Nuvacron (Monocrotophos)are organophosphorus pesticides used in agriculture,In view of the extensive use of these pesticidesin our country,it was thought desirable to assesstheir mutagenic a...Coroban (Chlorpyrifos) and Nuvacron (Monocrotophos)are organophosphorus pesticides used in agriculture,In view of the extensive use of these pesticidesin our country,it was thought desirable to assesstheir mutagenic and teratogenic effect.Mouse(Mus musculus) of Swiss albino strain,aboutthree months old,was employed as the in vivosvstem for the test.展开更多
Fast-food is a popularized diet which provides the basic necessary service with three meals a day for consumers, and is mainly characterized by speed, convenience, low price and fine quality. The fast-food operation i...Fast-food is a popularized diet which provides the basic necessary service with three meals a day for consumers, and is mainly characterized by speed, convenience, low price and fine quality. The fast-food operation includes the form of fast-food chain, also the form of concentrated production and on-the-spot sale, or delivery service. Fast-food,展开更多
Though the effect of global economic crisis still can be felt,six Gulf countries(GCC)maintain a good de-velopment trend for the energy industry.Since the fourth quarter of 2012,GCC has carried out new development plan...Though the effect of global economic crisis still can be felt,six Gulf countries(GCC)maintain a good de-velopment trend for the energy industry.Since the fourth quarter of 2012,GCC has carried out new development plans for energy industry.According to incomplete statis-tics,GCC will have an investment展开更多
TeO_x thin films were prepared by vacuum evaporation of TeO_2 powder. Structural characteristic and surface mor-phology of the as-deposited films was analyzed by using X-ray photoelectron spectroscopy, transmission el...TeO_x thin films were prepared by vacuum evaporation of TeO_2 powder. Structural characteristic and surface mor-phology of the as-deposited films was analyzed by using X-ray photoelectron spectroscopy, transmission electron microscopy, X-ray diffractometer and atomic force microscopy. It was found that the films represented a two component system comprising Te particies dispersed in an amorphous TeO2 matrix. The dispersed Te particies were in a crystalline state. The TeOx films showed a finely granular structure and a rough surface. Results of the statie recording test showed that the TeO_x films had good writing sensitivity for short-wavelength laser beam (514.5 nm). Primary results of the dynamic test at 514.5 nm were also reported. The TeO_x films were suitable for using as a blue-green wavelength high density optical storage medium.展开更多
文摘Ⅰ. INTRODUCTION The crux of typhoon prediction is the prediction of typhoon track. In recent years many objective prediction models have been proposed, particularly the statistical-dynamical type has become comparatively the more effective one, e. g. the USA NHC-73, the Shanghai SD75 and the Zhejiang ZMI-80 have all proved to be superior to the pure statistical models in practice. In China, due to lack of
文摘Coroban (Chlorpyrifos) and Nuvacron (Monocrotophos)are organophosphorus pesticides used in agriculture,In view of the extensive use of these pesticidesin our country,it was thought desirable to assesstheir mutagenic and teratogenic effect.Mouse(Mus musculus) of Swiss albino strain,aboutthree months old,was employed as the in vivosvstem for the test.
文摘Fast-food is a popularized diet which provides the basic necessary service with three meals a day for consumers, and is mainly characterized by speed, convenience, low price and fine quality. The fast-food operation includes the form of fast-food chain, also the form of concentrated production and on-the-spot sale, or delivery service. Fast-food,
文摘Though the effect of global economic crisis still can be felt,six Gulf countries(GCC)maintain a good de-velopment trend for the energy industry.Since the fourth quarter of 2012,GCC has carried out new development plans for energy industry.According to incomplete statis-tics,GCC will have an investment
基金.This work was supported by the Key National Natural Science Foundation of China(Grant No.59832060).
文摘TeO_x thin films were prepared by vacuum evaporation of TeO_2 powder. Structural characteristic and surface mor-phology of the as-deposited films was analyzed by using X-ray photoelectron spectroscopy, transmission electron microscopy, X-ray diffractometer and atomic force microscopy. It was found that the films represented a two component system comprising Te particies dispersed in an amorphous TeO2 matrix. The dispersed Te particies were in a crystalline state. The TeOx films showed a finely granular structure and a rough surface. Results of the statie recording test showed that the TeO_x films had good writing sensitivity for short-wavelength laser beam (514.5 nm). Primary results of the dynamic test at 514.5 nm were also reported. The TeO_x films were suitable for using as a blue-green wavelength high density optical storage medium.
