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Low-Pressure Metamorphism of Granulite Facies in an Early Proterozoic Orogenic Event in Central Inner Mongolia

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Acta Geologica Sinica(English Edition) 1993年第1期67卷 63-77页

作者： Liu Xishan, Jin Wei and Li Shuxun changchun University of Earth Sciences, changchun, Jilin sun Sheping changchun University of Earth Sciences Changchun Jilin

According to the kinds of feldspar and rock associations in the Ai-rich gneisses, the low-pressure metamorphic crust of the Early Proterozoic granulite facies in central Inner Mongolia can be divided into southern and northern belts which are composed of six rock associations. They represent the relevant rock sequences of the layered metamorphic rock series formed under specific metamorphic temperature and pressure conditions as well as tectonic environments. Mineral inclusions and reaction texture have recorded that the medium-temperature high-pressure mineral assemblages are replaced by the high-temperature low-pressure mineral assemblages, thus, giving rise to: garnet+quartz→ hypersthene+plagioclase; kyanite→sillimanite and garnet+kyanite/sillimanite+quartz→cordierite. The deformation fabrics of the rocks, the change of mineral assemblages and the PTt path of metamorphism indicate that the contempranceous high-temperature normal-slip ductile shearing is the main cause of the formation of the low-pressure metamorphic crust of granulite facies. In the orogenic event, the co-action of thrusting and extension resulted in the change of a medium-temperature high-pressure metamorphic environment into the high-temperature low-pressure metamorphic conditions.

关键词： Early Proterozoic change of mineral assemblages thrusting extension orogenic event.

Sedimentary Characteristics of the Cretaceous in the Songliao Basin

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Acta Geologica Sinica(English Edition) 1993年第2期67卷 167-180页

作者： Liu Zhaojun, Wang Dongpo, Liu Li, Liu Wanzhu, Wang Pujun, Du Xiaodi and Yang Guang changchun University of Earth Sciences, changchun, Jilin sun Sheping changchun University of Earth Sciences Changchun Jilin

The rupture of the lithosphere in Late Jurassic brought about the eruption of basaltic magma in the Songliao Basin. The evolution of the basin in Cretaceous progressed through six stages: pre-rift doming, extensional fracturing, fault subsidence, fault downwarping, downwarping and shringkage, resulting in the deposition of terrstrial facies nearly 10,000 m thick. There are different depositional sequences in these stages: the depositional period of the Early Cretaceous Shahezi and Yincheng Formations is the development stage of the down-faulted basin, forming a volcanic rock-alluvial fan-fan delta-lacustrine (intercalated with episodic turbidites)-swamp facies sequences; the period of the Early Cretaceous Dengluku Formation is the transformation stage of fault subsidence into fault downwarping of the basin, forming a sequence mainly of alluvial plain-lacustrine facies; the depositional period of the Early Cretaceous Quantou Formation-Late Cretaceous Nenjiang Formation is the downwarping stage of the basin, forming an alluvial plain-delta-lacustrine facies sequence; the period of the Late Cretaceous Sifangtai Formation-Mingshui Formation is the shringkage stage of the basin, forming again a sequence mainly of alluvial plain-alluvial fan and small relict lacustrine facies. These vertical depositional sequences fully display the sedimentary characteristics of a failed continental rift basin. Many facts indicate that the two large-scale lake invasions, synchronous with the global rise of sea level, which took place in the downwarping stage of the basin development, led to the connection between the lake and sea.

关键词： depositional sequence eustasy anoxic event Songliao Basin

Annular Dehn Surgery on Knots in a Solid Torus

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Communications in Mathematical Research 1999年第2期 4-6页

作者： Qiu Ruifeng (Department of Mathematics, Jilin University, changchun, 130023) sun Yifeng

§１．ＩｎｔｒｏｄｕｃｔｉｏｎＬｅｔＫｂｅａｋｎｏｔｉｎａｓｏｌｉｄｔｏｒｕｓＶ，ａｎｄＮ（Ｋ）ａｒｅｇｕｌａｒｎｅｉｇｈｂｏｕｒｈｏｏｄｏｆＫｉｎＶ．ＫｉｓｃａｌｅｄａｈｙｐｅｒｂｏｌｉｃｋｎｏｔｉｆＭ＝Ｖ－ｉｎｔ... 详细信息

§１．ＩｎｔｒｏｄｕｃｔｉｏｎＬｅｔＫｂｅａｋｎｏｔｉｎａｓｏｌｉｄｔｏｒｕｓＶ，ａｎｄＮ（Ｋ）ａｒｅｇｕｌａｒｎｅｉｇｈｂｏｕｒｈｏｏｄｏｆＫｉｎＶ．ＫｉｓｃａｌｅｄａｈｙｐｅｒｂｏｌｉｃｋｎｏｔｉｆＭ＝Ｖ－ｉｎｔＮ（Ｋ）ｉｓｈｙｐｅｒｂｏｌｉｃ．...

关键词： Hyperbolic Knot Annular Manifold Scharlemann Cycle

Abnormal IR Spectra of CO Adsorbed on the Surface of Glass Carbon Electrode Modified with Polypyrrole Film with Platinum Microparticles

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Chinese Chemical Letters 1997年第4期8卷 343-344页

作者： Hui YANG Tian Bong LU Kuau Hong XUE Guo Qiang LU Shen Pei CHEN Shi Gang sun(changchun Institute of Applied Chemistry, Chinese Academy of Scierees, changchun 130022)(Department of Chemistry, Nanjing Normal Universty, Nanjing 210097)(Department of Chemi CHINESE ACAD SCI CHANGCHUN INST APPL CHEMCHANGCHUN 130022PEOPLES R CHINA NANJING NORMAL UNIV DEPT CHEMNANJING 210097PEOPLES R CHINA XIAMEN UNIV DEPT CHEMXIAMEN 361005PEOPLES R CHINA

Abnormal IR spectra of CO adsorbed at the surface of glass carbon electrode modified with polypyrrole film with Pt microparticles are reported.

关键词： Abnormal IR Spectra of CO Adsorbed on the Surface of Glass Carbon Electrode Modified with Polypyrrole Film with Platinum Microparticles CO IR

Stabilization for Three Classes of Simple 3D Chaotic Systems with No Constant Term via Nonlinear and Linear Control Approaches

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Stabilization for Three Classes of Simple 3D Chaotic Systems...

第30届中国控制与决策会议

作者： changchun sun Li Zheng Shenyang Jianzhu University

Three classes of simple three-dimensional（3 D） quadratic smooth chaotic systems with no constant term are constructed in this paper. The origin is a common equilibrium point of all chaotic systems. Nine quadratic nonlinearities in each class of chaotic systems are relative to a certain state variable simultaneously. Three classes of chaotic systems can be stabilized via two different control approaches including a nonlinear state feedback approach and a linear state feedback approach. A numerical example on a new chaotic system shows the effectiveness of two control approaches.

关键词： Chaotic Systems Constant Term State Feedback Stabilization

Stabilization of a Four-Dimensional Chaotic System with No Equilibria via a Novel Precise Constant-Control Approach

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Stabilization of a Four-Dimensional Chaotic System with No E...

第40届中国控制会议

作者： changchun sun Qicheng Xu Shenyang Jianzhu University

A problem on stabilization of a four-dimensional chaotic system is investigated. A novel precise constant-control approach is derived in this paper. A four-dimensional chaotic system with five parameters and eight terms is constructed *** polynomial chaotic system is composed of four linear terms, one constant term and three quadratic nonlinear terms. The system has no any equilibrium point. A new hidden attractor can be generated from the four-dimensional polynomial *** diagrams of four state variables with the variation of a single parameter are depicted respectively. A novel precise constant-control approach is designed to stabilize the chaotic system. Corresponding numerical simulations verify the effectiveness of the novel approach derived in this paper.

关键词： chaotic system hidden attractor equilibrium point bifurcation stabilization

Dynamics and Control of a Three-Dimensional Chaotic System with a Single-Scroll Attractor

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Dynamics and Control of a Three-Dimensional Chaotic System w...

第43届中国控制会议

作者： changchun sun Weitao Liu Shenyang Jianzhu University

A three-dimensional chaotic system with a single-scroll attractor is derived in this *** system is not a polynomial *** terms of the system include five linear terms and three nonlinear *** behaviors of the dissipative system are analyzed by calculating Lyapunov exponents and depicting bifurcation *** attractors are generated and shown in one direction based on offset *** employing a novel switching control approach,three-scroll chaotic attractors can be generated by adding a sign function with a group of appropriate *** on a linear state feedback approach,the system can be stabilized rapidly within a finite time by separating an independent equation with a single variable in a closed-loop system.

关键词： chaotic system single-scroll attractor Lyapunov exponent switching control stabilization

Synthesis and Structure Study of Molybdenum Complex Mo[o-NHCOCH_3-m-NO_2C_6H_3COOH]_2_O2Cl_2·PhCl

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Chemical Research in Chinese Universities 1990年第2期6卷 124-129页

作者： Wu Lixin and Fan Yuguo(The Institute of Theoretical Chemistry, Jilin University, changchun)Guo Chunxiao, sun Chunting, Huang Qijun, Liang Tianfei and Zhang Jingwen(Department of Chemistry, Jilin University, changchun)

The crystal and molecular structures of molybdenum complex, Mo [ o- NHCOCH3- m-NO2C6H3COOH]*** are reported. The crystal belongs to space group Cc of monoclinic system with unit cell parameters:α= 11. 214 (3) A .b= 19. 544 (4 ) A . c = 14. 091 (6) A .β=94.06(3)°,V'=3080.3 A3 and Z=4. The structure was refined to R=0. *** coordination number for the Mo atom Is six. The coordination polyhedron formed by four O atoms and two Cl atoms around the Mo atom is a distorted octahedron. Four O atoms and one Mo atom construct a plane. Two benzyl planes in coordinate groups and the benzyl plane of solvent are almost parallel. The quantum-chemical calculations were carried out. There are hydrogen bonds in the Complex. The EHMO calculations and the existence of hydrogen bonds prove that the O atoms are stronger coordinated atoms in the carbonyls than in the carboxyls.

关键词： Molybdenum complex Synthesis Structure Coordination

Analysis and Control of a Three-Dimensional Quadratic Polynomial System with No Equilibrium Point and No Linear Term

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Analysis and Control of a Three-Dimensional Quadratic Polyno...

第32届中国控制与决策会议

作者： Zhongtang Chen Li Zheng changchun sun Shenyang Jianzhu University

A three-dimensional quadratic polynomial system with no equilibrium point and no linear term is derived in this paper.A new chaotic attractor can be generated from the ***,the existence of chaos is verified by calculating three Lyapunov *** behaviors of the system are analyzed in *** system does not have any equilibrium *** attractor generated from the system belongs to one of hidden *** diagrams of states are depicted respectively with the variation of two parameters.A problem on control of the polynomial system is investigated by employing constant control and state *** polynomial system with double symmetrical parameters is reported further.

关键词： Polynomial System Equilibrium Point Linear Term Hidden Attractor State Feedback