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Reproduction, Population Recruitment and Life History of Calanus Sinicus in the Yellow Sea
As the key zooplankton species of the Yellow Sea and East China Sea,Calanus sinicus links the primary production to the higher trophic levels, occupying the central position of the marine ecosystem. Base on the 9 cruises in the Yellow Sea an....
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Studies on Population Resources and Molecular Genetic Characteristics of Spotted Seals (Phoca Largha)
Spotted seal (Phoca largha), is a coldwater marine mammal widely distributed in the North-Western Pacific Ocean, one of second-class protected endangered animals in China, the only pinniped animal which naturally breed in Chinese waters. Lia....
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Sources, Composition and Food Chain Transfer of Organic Matter in the Estuarine Tidal Ecosystem
Estuary is the transitional zone between land and ocean.Being affected by physical,chemical and biological processes,a large quantity of organic matter originated from land,ocean and local place has accumulated in the estuarine and coastal a....
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Properties of Elastic Waves Propagating in Randomly Disordered and Quasi Periodic Phononic Crystals
Since Kushwaha proposed the concept of "phononic crystal"(PNC),an artificial periodic elastic/acoustic structure that exhibits so-called "phononic band gaps",a great deal of attention has been focused on this kind of artificial lattice struc....
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Study on Fiber Grating Based Fiber Lasers, Filters and Tilted Fiber Gratings
The fiber phase grating is an important candidate in fiber technology,and has found many useful applications in fiber communication and fiber sensing.Under the supports of national 863 high technology program and national nature science foun....
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Research on Theory and Method of Rate Classification in Automobile Insurance
Chinese automobile insurance industry has developed fast since the 21 century along with the boost of automobile industry.Nevertheless Chinese auto insurance industry has shadowed by three problems i.e.low eddicency,repetitive insurance prod....
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Numerical Simulation of Aerodynamic Characteristics for Micro Air Vehicles
MAVs(Micro Air Vehicles or Micro Aerial Vehicles), a new-concept vehicle proposed by Defence Advanced Research Projects Agency(DARPA) in the United States in 1990 s, is a kind of smart integrated micro system which combines multiple high-tec....
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Stability Analysis of Supersonic Boundary Layers and High Order Shock-Capturing Schemes
With the continuous development of aeronautic and astronautic technology, there are more and more supersonic and hypersonic aero/space crafts. The essential difference between laminar flow and turbulent flow causes large changes in aerodynam....
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Study on Application of Thermodynamic Methods to the Constitutive Modeling of Soils
Traditional constitutive models of soils may be divided into two groups.One is experiential models obtained by fitting experimental data,which aim at improving fitting precision.The other is theoretic models,which can be obtained based on Dr....
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Study on Root System, Soil Water Distributon Characteristics and Dought Resistance of Caragana in For
Root system, soil moisture, growth speed of caragana (Caragana intermedia ), plant diversity between the caragana forest belt with different belt spacing at Si Zi King county in North Yinshan Mountain were studied by way of digging, soil pro....
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Respiration of Soil, Root and Soil Microbial in Larix Gmelinii and Fraxinus Mandshurica Plantaions
Soil respiration(Rs) is the process that soil releases CO_2 to atmosphere(also called soil surface CO_2 flux),and is the important part of carbon cycling in terrestrial ecosystems.Soil microbial respiration and root respiration showed differ....
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The Investigation on the Upconversion Excitation Processes with a Square Wave Laser
The study on upconversion luminescence of rare earth ions is important for the applications in the areas such as high-density optical storage,infrared detection, laser anti-forgery,biomarkers,short-wavelength solid-state lasers,three-dimensi....
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Study on Polarization Maintaining Photonic Crystal Fiber and Its Application on Fiber Optic Gyroscope
Fiber optic gyroscope(FOG) based on photonic crystal fiber shows important application prospects on strong radiation environments such as outspace and nuclear reactor.This dissertation is supported by the National Natural Science Foundation....
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Selection of a Representative Virus Clone and Construction of a Full-length cDNA Clone of La Sota Str
Newcastle disease (ND) is a major animal infectious disease of poultry. At present, it is listed as notifiable disease reported to the OIE and class one animal disease ruled by Chinese government. Reverse genetic system for negative-strand R....
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The Theory of Solitons and Their Application in Bose-Einstein Condensates
Soliton theory is one of the important branches of nonlinear science.It has crescent application in many fields.The soliton perturbation problem is an important part of the soliton theory.It exists in a large number of real nonlinear systems....