5,481 Result(s)

Chapter and Conference Paper

Residual BHC in Paddy Soils and its Contamination to Rice

At present, hexachloro-cyclohexane (BHC) is still one of the dominant pesticides commonly used in China. Whether a long term application of BHC would lead to the contamination of soil and crop is still a probl...

Zhang Shui-ming, Ma **ng-fa, Li Xun-guang in Proceedings of Symposium on Paddy Soils (1981)

Article

Decompositions of Backlund transformations for the Korteweg-de Vries equation

In this paper, decomposition relations such as B=SB₁S, connecting scale transformations and Backlund transformations for the Korteweg-de Vries K-dV, modified K-dV, higher-order K-dV and cylindrical equations, are...

Huang Xun-cheng in Applied Mathematics and Mechanics (1982)

Article

Porous kaolinite bead: A novel but economical solid support material for biomass in fluidised bed technology

Porous kaolinite beads were prepared by mixing kaolinite with various proportions of rice hull ash (RHA) and heating in a furnace at 800 °C for five hours. Those with 10 to 60% (w/w) RHA were very porous and h...

Jian Hao-Ran, Zhang Xun, Lo **ou-He, Zhou Shu-**, Cai **ao-Wei… in Biotechnology Letters (1983)

Article

The measurement of a small transient signal superposed on a large electric current

Two methods, manual back-off and capacitor coupling (by cutting off the d.c. component) are usually used to measure a small transient signal superposed on a large electric current. The shortcomings of them are...

Tang Dejiang, Li **nyuan, Chen Chunzhang, Shen Xun in Journal of Electronics (China) (1984)

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...

L. R. Xun, Z. S. Zhen, C. X. Quan, L. G. Jian… in Eleventh International Seaweed Symposium (1984)

Article

An epidemiological study on carbon disulfide angiopathy in a Chinese viscose rayon factory

To assess long-term vascular effects of occupational carbon disulfide (CS₂) exposure, we examined 376 exposed and 325 unexposed Chinese workers with a medical and work-history questionnaire, a chest-pain question...

K. Sugimoto, Y. Seki, S. Goto, I. Karai… in International Archives of Occupational and… (1984)

Article

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

Lin Rui Xun, Zheng Shu Zhen, Chen **n Quan, Luo Guang Jian, Lin Hui Zhen in Hydrobiologia (1984)

Article

The Bäcklund transformation and nonlinear superposition formula of solutions for the Liouville's equation in higher dimensions

In this paper, we show that Bäcklund transformation derived by Leibbrandt et al. for the Liouville's equation in three spatial dimensions, ...

Huang Xun-Cheng in Applied Mathematics and Mechanics (1984)

Chapter and Conference Paper

The Thermal Desorption Spectra Study of Hydrogen Chemisorption on Si(100) Clean Surface

Two desorption peaks corresponding to monohydride and dihydride phases on Si(100) surface have been found in the thermal desorption measurement. The experimental activation energies of desorption for these two...

** **aofeng, Feng Yiqing, Zhuang Chengqun… in Proceedings of the 17th International Conf… (1985)

Article

Some problems for viscoelastic rods

Using an approach proposed in [3], we consider some linear and nonlinear problems for viscoelastic rods. Results in [I] for linear case are affirmed more elamentarily and simply here. We also treat linear prob...

Zou Feng-wu, Liu Xun-ming in Applied Mathematics and Mechanics (1985)

Article

Growth-induced magnetic anisotropy in YIG

YIG film were grown by LPE and the substrate was carefully removed by grinding. From the⁵⁷Fe Moessbauer spectrum the orientation of magnetization was determined and the growth-induced magnetic anisotropy constant...

Wang Ya-Qi, Zeng Xun-Yi in Hyperfine Interactions (1986)

Article

Primate model of neovascular glaucoma

Iris neovascularization has been reproducibly created in cynomolgus monkey eyes by argon laser occlusion of retinal veins. Pre-treatment of the eyes with lensectomy and vitrectomy (before the retinal vein occl...

Andrew J. Packer M.D., Xun-Qing Gu, E. Gary Servais… in International Ophthalmology (1986)

Chapter

Synthetic Peptides and the Design of Peptide and Protein Recognition Surfaces

Macromolecular recognition is a unifying theme in biology and biotechnology and understanding the mechanisms underlying this phenomenon remain important goals of biochemical study. The structural nature of rec...

Irwin M. Chaiken, Shoji Ando, Yechiel Shai… in Macromolecular Biorecognition (1987)

Article

Studies on anti-infective mechanism of the traditional Chinese medicinal preparation “Anti-inflammatory Agent No. 6” — Its influence on immune functions of mice

The traditional Chinese medicinal preparation “Anti-inflammatory Agent No.6” (for injection) could raise the phagocytic index and phagocytic rate of the peritoneal macrophages by 2.5 and 3 times respectively i...

Xue Zhao-hua, Zhang Xun-huan, Liu Yan-bin… in Journal of Tongji Medical University (1987)

Article

On gravity wave-mean flow interactions in a three dimensional stratified atmosphere

By using multiple scale analysis method, two coupled models of gravity wave-mean flow interactions in a three-dimensional stratified atmosphere are derived. One model can be applied to the inertio-gravity wave...

Xun Zhu in Advances in Atmospheric Sciences (1987)

Article

Regional localization of the gene coding for sphingolipid activator protein SAP-1 on human chromosome 10

Sphingolipid activator protein SAP-1 is required for the enzymatic hydrolysis of GMI ganglioside and sulfatide. The gene coding for SAP-1 was previously mapped to human chromosome 10 using monospecific antibod...

Fa-Ten Kao, Martha Liao Law, Judith Hartz… in Somatic Cell and Molecular Genetics (1987)

Article

On the stability of finite difference method for solving three-dimensional unsteady gasdynamic equations with artificial viscosity terms

The artificial viscosity method for three—dimensional unsteady gas flow is developed. The stability of finite difference scheme in this case is investigated. The necessary and sufficient conditions for the sta...

Du Xun in Acta Mechanica Sinica (1987)

Chapter and Conference Paper

Studies of the High Temperature Nitridation Structures of the Si(111) Surface by LEED, AES and EELFS

It is well known that the silicon nitride film can be used as a passive film in IC technology. Since 1980 the structure of silicon nitride layers has been studied by several groups [1,2,3]. In this paper, the ...

Hongchuan Wang, Rongfu Lin, Xun Wang in The Structure of Surfaces II (1988)

Chapter and Conference Paper

Studies on the Defect in SAP-1 (Sulfatide/G_M1 Activator)-Deficient Patients

The catabolism of sulfatide, G^M1 ganglioside and ceramide trihexoside require a heat stable activator protein in addition to their specific lysosomal enzyme.^1-3 This so-called sphingolipid activator protein (SAP-...

David A. Wenger, Xun-ling Zhang, Thomas A. d’Amato… in Lipid Storage Disorders (1988)

Article

On the weak discontinuity surfaces and tapes of equation systems in fluid mechanics

The weak discontinuity surfaces for a system of quasi-linear differential equations of higher order are developed. The classification of equation systems in fluid mechanics is based on the propagative weak dis...

Du Xun in Acta Mathematicae Applicatae Sinica (1988)