RF WAVE AND ELECTRIC CONDUCTIVITY IN A NON-UNIFORM PLASMA

Making use of Green's function method we have studied the RF wave effect on electric conductivity in a non-uniform plasma.The result: showed that after a RF wave injection the electric conductivity increases. If the non-uniformity is taken into account the enhanced value becomes larger.     

A HYBRID MAPPING OF AN ODD FERMION SYSTEM AND MANY-BODY FORCES

In this paper,we derive a boson-fermion hybrid representation for the antisymmetrizer,and obtain an exact mapping of the fermion space onto a hybrid space.The results show that the effect of the antisymmetrizer appears as different kinds of many body forces among the bosons and the fermion.     

硬脂酸镍与2,2′-硫代双(-4-叔辛基酚)在聚丙烯抗光氧老化中的协同作用及其机理的研究

本文用IR、NMR、UV以及力学性能测定等方法研究了硬脂酸镍和2,2′-硫代双4-叔辛基酚)并用体系在聚丙烯抗光氧老化中的光防护效果。结果表明,本体系有协同作用,其协同作用的机理可能是本体系在热加工条件下,形成了类似于Am101的镍-硫代双酚的螯合物。     

MODELING AND SCALING OF CHIELECTRIC RELAXATION OF NONLINEAR OPTICAL POLYMERS IN FREQUENCY DOMAIN

chielectric relaxation theory was demonstrated, chielectric relaxation that selectively probes chromophore reorientation in the frequency domain was described by the Havriliak Negami(HN) function, chielectric spectra of several nonlinear optical (NLO) polymers were fitted well by the HN function. To describe the scaling of chromophore reorientation relaxation in frequency domain, two-shape parameters m and n describing the low- and high- frequency wings of the chielectric spectra need to be specified, besides the chielectric characteristic relaxation time τ and the chielectric strength Δχ⁽²⁾. From the temperature dependences of m and n of NLO polymers, the relations between the chromophore relaxation and the a relaxation of the polymer host have been revealed.     

A Minor New Diterpenoid Alkaloids from the Roots of Delphinium Souliei Franch

Inourpreviouspapers1-3,wehavereportedtheisolationandelucidationofaseriesofnewditerpenoidalkaloidsfromtheaerialpartofDelphiniumsoulieiFranch.Inthisstudy,phytochemcalinvestigationsontheconstituentsoftherootsofthisplanthaveledtotheisolationofaminornewditerpenoidalkaloidsoulidine.A Minor New Diterpenoid Alkaloids from the Roots of Delphinium Souliei Franch1. K. Zhang, L. He, X. Pan, YZ. Chen Planta Med, 1998, 64(6), 580. 2. L. He, Y J. Pan, X. Pan, B. G. Li, Y Z. Chen Chin. Chem.…     

清代红绿彩瓷器无损分析研究

红绿彩瓷器是我国陶瓷史上一种重要的釉上彩瓷器,分析其彩料的化学组成和物相结构对其烧制工艺的研究有很重要的意义.但由于瓷器表面的不平整和彩料分布的不均匀性,导致其不满足传统的1 mm×10 m m线光源的X射线衍射仪对样品的测试要求.而毛细管聚焦的X射线衍射仪采用点光源的方式照射样品,毛细管X光透镜对Cu-Kα 的能量有...     

Electrochemistry Behavior of Hydroxyethylrutin and its Analytical Application

Hydroxyethylrutin is also called Venoruton,abbreviated as HER, it has been used for curation of arteriosclerosis, heart disease etc. The determination method of HER is few, the determination of HER by electrochemistry method has not been reported.     

Study on the Inclusion Complex of Major Component of Rhubarb with Cyclodextrins

The inclusion complexes of major component of rhubarb using cyclodextrins as host molecules have been studied by phase solubility method. Rhubarb (rheum officinale Baill.),a common Chinese traditional medicine, has antibacterial, diminish inflammation and resist decrepitude effect etc,its further use is limited due to its low solubility.     

Characterization of Inclusion Complex of Rutin with β-Cyclodextrin

Numerous studies on inclusion phenomenon of cyclodextrin(CD) have attracted considerable attention and are widely used in pharmaceutical industry and analytical separations.Drug carrier represents one of the most important applications of the CD.     

Interrelation Research on Three Kinds of Trace Element Copper,Zinc and Manganese in Cereal of the Different Incidence Areas of the Esophagus Cancer

With the development of modern biology and medical science,we have had enough evidence to prove some kinds of trace element(TE) have vital effect on the human body's physiology function, metabolism,heredity and so on. And the effect can directly relate to people's daily food. This paper determined copper, zinc, and manganese levels in cereal of the different incidence areas of the Esophagus cancer by atomic absorption spectrophotometry. In order to probe into the interrelation between TE and the esophagus cancer, the analytical results had been statistically done and listed in Table.