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On the genetic classification and tectonic implications of the Early Yanshanian granitoids in the Nanling Range, South China

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Chinese Science Bulletin 2007年第14期52卷 1873-1885页

作者： li XianHua li WuXian li zheng-xiang Key Laboratory of Isotope Geochronology and Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China State Key Laboratory of lithospheric Evolution Institute of Geology and Geophysics Chinese Acadamy of Sciences Beijing 100029 China Institute of Geoscience Research Department of Applied Geology Curtin University of Technology GPO Box U 1987 Perth WA 6845 Australia

Early Yanshanian (Jurassic) granitoids are widespread in the Nanling Range of South China, and are associated with numerous non-ferrous and rare metal mineral deposits. These granitoids consist mainly of slightly peraluminous biotite monzogranites and K-feldspar granites that are closely associated in time and space with subordinate amphibole-bearing granites and muscoviteand garnet-bearing granites. In most previous studies, the biotite-bearing granites were classified as crustal transformation-type (corresponding to the S-type) granites which were interpreted to be derived from the regional Paleoproterozoic meta-sedimentary rocks. In this paper, we re-analyze the geochemical characteristics of a number of representative Early Yanshanian Nanling granitoids. There exists a clear negative correlation between SiO2 and P2O5 for the studied granitoids. The Early Yanshanian Nanling granitoid suites (including amphibole-bearing granodiorites→biotite monzogranites→K-feldspar granites→two-mica (muscovite) granites) are metaluminous to slightly peraluminous I-type or fractionated I-type granites. They were derived predominantly from Proterozoic igneous protoliths. The juvenile crust and/or newly mantle-derived materials might also have been involved in some of these granites. In addition, the Iand fractionated I-type granites are closely associated in time and space with minor amount of A-type felsic and mafic volcanic and intrusive rocks as well as alkaline rocks. All these rocks constitute a typical assemblage of anorogenic, intraplate magmatism, suggesting a dominant lithospheric extensional regime for the Nanling Range and neighboring region during the Early Yanshanian period.

关键词：遗传分类燕山期地质学人造花岗岩面中国

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Extended F-Expansion Method and Periodic Wave Solutions for Klein-Gordon-SchrSdinger Equations

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Communications in Theoretical Physics 2006年第1期45卷 9-14页

作者： li Xiao-Yan li xiang-zheng WANG Ming-liang Science of College Henan University of Science and Technology Luoyang 471003 China Department of Mathematics Lanzhou University Lanzhou 730000 China

We present an extended F-expansion method for finding periodic wave solutions of nonlinear evolution equations in mathematical physics. By using extended F-expansion method, many periodic wave solutions expressed by various Jacobi elliptic functions for the Klein-Gordon-Schrodinger equations are obtained. In the limit cases, the solitary wave solutions and trigonometric function solutions for the equations are also obtained.

关键词： Klein-Gordon-Schrodinger equations F-expansion method periodic wave solutions Jacobi elliptic functions solitary wave solutions

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Double-Parameter Solutions of Projective Riccati Equations and Their Applications

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Communications in Theoretical Physics 2007年第1期47卷 1-9页

作者： WANG Ming-liang li Er-Qiang li xiang-zheng Science College Henan University of Science and Technology Luoyang 471003 China Department of Mathematics Lanzhou University Lanzhou 730000 China

The purpose of the present paper is twofold. First, the projective Riccati equations （PREs for short） are resolved by means of a linearized theorem, which was known in the literature. Based on the signs and values of coeffcients of PREs, the solutions with two arbitrary parameters of PREs can be expressed by the hyperbolic functions, the trigonometric functions, and the rational functions respectively, at the same time the relation between the components of each solution to PREs is also implemented. Second, more new travelling wave solutions for some nonlinear PDEs, such as the Burgers equation, the mKdV equation, the NLS^＋ equation, new Hamilton amplitude equation, and so on, are obtained by using Sub-ODE method, in which PREs are taken as the Sub-ODEs. The key idea of this method is that the travelling wave solutions of nonlinear PDE can be expressed by a polynomial in two variables, which are the components of each solution to PREs, provided that the homogeneous balance between the higher order derivatives and nonlinear terms in the equation is considered.

关键词： projective Riccati equations linearized theorem homogeneous balance Sub-ODE method travelling wave solutions nonlinear PDE

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Solitary Wave Solutions of a Generalized Derivative Nonlinear Schrdinger Equation

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Communications in Theoretical Physics 2008年第7期50卷 39-42页

作者： WANG Ming-liang ZHANG Jin-liang li xiang-zheng Science College Henan University of Science and Technology Luoyang 471003 China Department of Mathematics Lanzhou University Lanzhou 730000 China

With the aid of a class of nonlinear ordinary differential equation （ODE） and its various positive solutions, four types of exact solutions of the generalized derivative nonlinear Sehrodinger equation （GDNLSE） have been found out, which are the bell-type solitary wave solution, the algebraic solitary wave solution, the kink-type solitary wave solution and the sinusoidal traveling wave solution, provided that the coefficients of GDNLSE satisfy certain constraint conditions. For more general GDNLSE, the similar results are also given.

关键词： generalized derivative nonlinear Schrodinger equation bell-type solitary wave kink-type solitary wave sinusoidal traveling wave

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Solitary Waves for Cubic-Quintic Nonlinear Schroedinger Equation with Variable Coefficients

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Communications in Theoretical Physics 2006年第2期45卷 343-346页

作者： ZHANG Jin-liang WANG Ming-liang li xiang-zheng Department of Mathematics and Physics Henan University of Science and Technology Luoyang 471003 China Department of Mathematics Lanzhou University Lanzhou 730000 China

The cubic-quintic nonlinear Schroedinger equation （CQNLS） plays important parts in the optical fiber and the nuclear hydrodynamics. By using the homogeneous balance principle, the bell type, kink type, algebraic solitary waves, and trigonometric traveling waves for the cubic-quintic nonlinear Schroedinger equation with variable coefficients （vCQNLS） are derived with the aid of a set of subsidiary high-order ordinary differential equations （sub-equations for short）. The method used in this paper might help one to derive the exact solutions for the other high-order nonlinear evolution equations, and shows the new application of the homogeneous balance principle.

关键词： cubic-quintic nonlinear Schroedinger equation with variable coefficients homogeneous balance principle solitary wave

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New paleomagnetic results from the Yangzhuang Formation of the Jixian System,North China,and tectonic implications

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Chinese Science Bulletin 2005年第14期50卷 1483-1489页

作者： WU Huaichun ZHANG Shihong li zheng-xiang li Haiyan DONG Jin State Key Laboratory of Geological Processes and Mineral Resources & Key Laboratory of lithosphere Tectonics and lithoprobing Technology of Ministry of Education China University of Geosciences Beijing 100083 China Tectonics Special Research Centre School of Earth and Geographical Sciences The University of Western Australia Crawley WA 6009 Australia

A paleomagnetic study was carried out on the Yangzhuang Formation (~1350 Ma) of the Jixian System in the North China Block (NCB). Detailed stepwise thermal demagnetization isolated two components. The soft compo- nent (component A) was interpreted as a remagnetization in the recent geomagnetic field. The hard component (compo- nent B) with higher unblocking-temperatures was carried by hematite. Its site-mean direction is D/I = 77.6°/-24.3° (κ = 5.4, α95 = 18.3°, N = 15 sites) before, and D/I = 72.2°/11.5° (κ = 24.6, α95 = 7.9°) after tilt correction. It passes a fold test (Mesozoic folding) at 99% confidence level and reversal test at 95% confidence level. The corresponding pole locates at 17.3°N, 214.5°E (dp = 4.1°, dm = 8.0°). A best fit of paleo- magnetic poles from the NCB, Baltica, Siberia and the ap- parent polar wander path for Laurentia suggests a long-lived connection between these paleo-continents between ~1800 and 1350 Ma.

关键词：古磁学中元古代中国岩石

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Effects of cosolvent on formation and morphology of microspheres in precipitation polymerization of divinylbenzene in supercritical carbon dioxide

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Chinese Chemical Letters 2011年第4期22卷 489-492页

作者： Chun Sheng liJing Cui liang Xiao li Zhu xiang zheng Kong Key Laboratory of Fluorine Chemistry and Chemical Materials of Shandong Province College of Chemistry and Chemical Engineering University of Jinan Jinan 250022 China

Precipitation polymerizations of divinylbenzene（DVB） in pure supercritical carbon dioxide,and parallel runs with presence of a cosolvent were carried *** results showed that use of acetone as the cosolvent contributed greatly to the formation of the monodisperse *** microspheres,with obviously higher uniformity than reported up to date,were achieved using 6-7 mL of acetone in a reactor of 50 mL with DVB concentration of 0.4 mol/L under 16 MPa,a much lower pressure than previously reported without use of cosolvent.

关键词： Polydivinylbenzene microspheres Precipitation polymerization Supercritical carbon dioxide Cosolvent

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Applications of F-expansion to Periodic Wave Solutions for Variant Boussinesq Equations

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Communications in Theoretical Physics 2005年第3X期44卷 396-400页

作者： WANG Yue-Ming li xiang-zheng YANG Sen WANG Ming-liang Department of Mathematics and Physics Henan University of Science and Technology Luoyang 471003 China Department of Mathematics Lanzhou University Lanzhou 730000 China

We present an F-expansion method for finding periodic wave solutions of nonlinear evolution equations in mathematical physics, which can be thought of as a concentration of extended Jacobi elliptic function expansion method proposed recently. By using the F-expansion, without calculating Jacobi elliptic functions, we obtain simultaneously many periodic wave solutions expressed by various Jacobi elliptic functions for the variant Boussinesq equations. When the modulus m approaches 1 and O, the hyperbolic function solutions （including the solitary wave solutions） and trigonometric solutions are also given respectively.

关键词： F-expansion variant Boussinesq equations periodic wave solutions Jacobi elliptic functions solitary wave solutions

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Interspecies Phylogenetic Analysis of Clonorchis sinensis in High-incidence Areas of Hunan Province, China

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Biomedical and Environmental Sciences 2021年第11期34卷 881-890页

作者： LONG Xiao Lei WANG Shi Ping ZHOU Shuai Feng li zheng xiang ZHUANG Shi Feng HE Zhuo Department of Medical Parasitology Xiangya School of MedicineCentral South UniversityChangsha 410028HunanChina Hunan Provincial Center for Disease Control and prevention Changsha 410005HunanChina

Objective This study aims to investigate the infection of Clonorchis sinensis(***)in highincidence areas of Hunan Province,*** phylogenetic analysis of the *** species in the highly infected areas was carried *** Infection of the definitive human host and intermediate fish host by *** was investigated,and the mitochondrial genes cox1 and Nad1 were used as genetic markers for phylogenetic *** In 2016–2020,the average population infection rate of Hunan was 1.38%,while in Tongdao County the rate was up to 26.90%,and the highest fish infection rate was detected in Qiyang County(99.44%in the dorsal fin of crucian carp).High genetic sequence similarity was observed in the samples from Qiyang and Lengshuitan which exhibited high homology with those from Guangdong and Gansu,whereas the parasitic species from Tongdao was highly homologous with those located in high-latitude ***,no significant difference was found in the gene sequence of the parasitic species in definitive hosts dogs and *** The systematically study of *** infection in the high-incidence areas will contribute greatly to the prevention and effectively controlling the spread of Clonorchis sinensis in Hunan Province The endemic of *** infection in Hunan Province is the result of co-action of local and foreign parasite species.

关键词： Clonorchis sinensis Mitochondrial genes Coxl Nodi Phytogeny

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Research and implementation of I^2C device driver under embedded linux system

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微计算机信息 2010年第11期26卷 70-72,87页

作者： ZHU Nan-hao li zheng-xiang Communication University of China Engineering Research Center of Digital Audio and Video Ministry of Education Beijing 100024 China

As an universal bus technology at present time, I2C has been widely used in the interface between CPU and other devices such as EEPROM, RTC and small LCD. The architecture of I2C driver, the relationship of some important data structure and the operation mechanism of the I2C driver have been analyzed. Finally, by taking an EEPROM chip named AT24C08 as a specific example, the flow of how to develop an I2C device driver is illustrated. In addition, the design of a new driver mode of single device with multi-drivers is realized.

关键词： linux 驱动程序 AT24C08 储存方法

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