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Photoionization Cross Section and Resonance Structure of Mn+

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Communications in Theoretical phys.cs 2006年第5期45卷 911-913页

作者： LU Peng-Fei,~1 LIU Jin-Chao,~2 and YANG Xiang-Dong~2 ~1 School of Science, Beijing university of Posts and Telecommunication, Beijing 100876, china ~2 Institute of Atomic and Molecular phys.cs, sichuan university,{4., china School of Science Beijing University of Posts and Telecommunication Institute of Atomic and Molecular phys.cs Sichuan University

A photoionization cross section calculation of Mn;is performed in the formalism of many-body perturbation theory for photon energies ranging from 4. eV to 56 eV. We consider excitations from the 3p, 3d, and 4. subshells. The effects of the strong 3p→3d and 3p→4. transitions are included as resonant contributions to the total cross sections. Good agreement with experiment is found.

关键词： many-body perturbation theory effective single-particle potential generalized resonance method

Research on Water Resources Conservation of Mountain River Based on the Concept of Region Partition

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Journal of Mountain Science 2011年第4期8卷 582-591页

作者： LIU Yubang TAO Qingyu LIANG Chuan WU Yong State Key Laboratory of Geohazard Prevention and Geoenvironment Protection chengdu university of Technology Chengdu 61o059 China State Key Laboratory of Hydraulics and Mountain River Engineering College of Water Resource & Hydropower Sichuan University Chengdu 61oo65 China Academic Journal Center of chengdu university of Technology Chengdu 61oo59 China

Presently concepts and methods related to water resources conservation of mountain rivers are seriously insufficient,and its level is far from being adaptable to the development of a harmonious *** mountain ecosystems play a key role in water resources conservation of mountain rivers,and the characteristics of mountain ecosystems and hydrologic features of mountain river follow strong temporal and spatial distribution,partition theory can be applied to the water resources conservation of mountain *** theory observes the following partition principles:regional relativity,spatial continuity,integralcounty,meeting management needs,hierarchical principle,and comparability *** it lays equal emphasis on both water resources conservation and environmental protection,on both water quality conservation and water quantity protection,on the combination of water features,water cycle and water *** the partition methods,index method and map superposition method will be applied in region *** example of region partition of water resources conservation in the upper reaches of the Yangtze River shows that the partition theory is practicable in water resources conservation of mountain rivers,and it provides a platform for future study in water resources conservation.

关键词： Water resources conservation Mountain river Region partition Mountain ecosystems

A Numerical Stress-strain Response Model of All Grades of Concretes under Uniaxial Compression

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Journal of Wuhan university of Technology(Materials Science) 2006年第3期21卷 149-152页

作者：王勇威 college of Water Resource & Hydropower Sichuan UniversityChengdu 610065China

An important problem facing stress-strain response modeling of concrete is the complexity of the compressive strength grades. 21 groups of speeimens with different cubic compressive strength （56.3- 164.9 MPa ） hate beets numerically analyzed. Using only the compressive strength, a stress-strain response model of different concrete grade was established. The numerical simulation model not only qualitatively reproduces the relationship of uniaxial compressive strength, peak value stress and cubic compressive strength, but realizes the consistence of the ascending branch of stress-strain cunts with different strength grades by introducing the correction coefficient k. The results indicate k increases gradually from 0 to approximate 1 with the increase of the compressive strength, corresponding to the transition from the paracurve to straight line branch in stress-strain curves. When k is 0, the madel is identical to the Hognestad equation. A good agreement with the experiment data was obtained.

关键词： high-strength concrete stress-strain response mechanical property

Numerical simulation of air-water two-phase flow over stepped spillways

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Science china(Technological Sciences) 2006年第6期49卷 674-684页

作者： CHENG Xiangju1, CHEN Yongcan1 & LUO Lin2 1. Department of Hydraulic Engineering, Tsinghua university, Beijing 100084. china 2. State Key Laboratory of Hydraulics and Mountain River Engineering, sichuan university, chengdu 610065, china Department of Hydraulic Engineering Tsinghua University Beijing 100084 China State Key Laboratory of Hydraulics Mountain River Engineering Sichuan University Chengdu 610065 China

Stepped spillways for significant energy dissipation along the chute have gained interest; popularity among researchers; dam engineers. Due to the complexity of air-water two-phase flow over stepped spillways, the finite volume computational fluid dynamics module of the FLUENT software was used to simulate the main characteristics of the flow. Adopting the RNG k- turbulence model, the mixture flow model for air-water two-phase flow was used to simulate the flow field over stepped spillway with the PISO arithmetic technique. The numerical result successfully reproduced the complex flow over a stepped spillway of an experiment case, including the interaction between entrained air bubbles; cavity recirculation in the skimming flow regime, velocity distribution; the pressure profiles on the step surface as well. The result is helpful for understanding the detailed information about energy dissipation over stepped spillways.

关键词： stepped spillway, mixture model, RNG k-εmodel, air-water two-phase flow.

PRESSURE－INDUCED 4.→4. ELECTRON TRANSFER AND ITS EFFECT ON ELECTRICAL TRANSPORT OF COPPER

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中国有色金属学会会刊：英文版 1994年第2期4卷 82-85页

作者： Pu,Fengnian(Institute of High-Temperature and High-Pressure phys.cs,chengdu university of Science and Technology,chengdu {4.) chengdu Univ of Science and Technology Chengdu China

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关键词： high pressure copper electron transfer electrical resistance

Gas-phase photocatalytic oxidation of benzene over titanium dioxide loaded on Bi_(12)TiO_(20)

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Chinese Chemical Letters 2007年第2期18卷 241-243页

作者： Tao Lin, Zhan Pi, Mao Chu Gong, Jun Bo Zhong, Jian Li Wang, Yao Qiang Chen college of Chemistry, sichuan university, chengdu 610064. china college of Chemistry Sichuan University Chengdu 610064 China

TiO2 was prepared by sol-gel method using tetrabutyl titanate as precursor. TiO2 was loaded on Bi12TiO20. The photocatalyst with different TiO2 loading was calcined at 723 K. The photocatalytic activity of decomposition gaseous benzene was investigated in a batch reactor. The prepared photocatalyst was characterized by UV-vis diffuse reflectance. The result showed that TiO2/Bi12TiO20 absorbed much more ultraviolet light than Ti02 in the ultraviolet light region and showed red shift. The results indicated that the prepared photocatalyst can greatly promote the photocatalytic activity. The 2.0% TiO2/Bi12TiO20 system exhibited the highest photocatalytic activity.

关键词： Titanium Bi_(12)TiO_(20) Benzene Photocatalytic oxidation

A multidimensional subdiffusion model:An arbitrage-free market

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Chinese phys.cs B 2012年第12期21卷 561-567页

作者：李国华张红罗懋康 college of Mathematics Sichuan University

To capture the subdiffusive characteristics of financial markets, the subordinated process, directed by the inverse α-stale subordinator Sα （t） for 0 〈 α〈 1, has been employed as the model of asset prices. In this article, we introduce a multidimensional subdiffusion model that has a bond and K correlated stocks. The stock price process is a multidimen- sional subdiffusion process directed by the inverse a-stable subordinator. This model describes the period of stagnation for each stock and the behavior of the dependency between multiple stocks. Moreover, we derive the multidimensional fractional backward Kolmogorov equation for the subordinated process using the Laplace transform technique. Finally, using a martingale approach, we prove that the multidimensional subdiffusion model is arbitrage-free, and also gives an arbitrage-free pricing rule for contingent claims associated with the martingale measure.

关键词： subordination arbitrage-free contingent claim valuation fractional backward Kol-mogorov equation

Bers-Orlicz Spaces on the Product Riemann Surface

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Acta Mathematica Sinica,English Series 1994年第3期10卷 249-259页

作者： Ma Jigang Department of Applied Mathematics chengdu university of Science and Technology chengdu,610065{4. He Yuzan Institute of Mathematics Academia Sinica Beijing,100080{4. 1. Department of Applied Mathematics Chengdu University of Science and Technology 610065 Chengdu China 2. Institute of Mathematics Academia Sinica 100080 Beijing China

In this paper,the Bers-Orlicz spaces on the automorphic form A_α■(G)(or EA_α■(G)) and L_α■(G)(E_α■(G))on the product Riemann surfaces are *** prove that each f ∈A_α■(G) is a cusp *** f ∈A_α■(G),we give the reproducing ***,we give the projective operator P_αfrom L_α■(G) to A_α■(G)(or E_α■(G) to EA_α■(G)).After giving some fundamental properties of the Poincaréseries,we prove a dual theorem A_α■(G)=(EA_α■(G))~*.

关键词： Bers-Orlicz Spaces on the Product Riemann Surface

Discovery of seismites in Upper Sinian stratiform lead-zinc deposits in Dadu River valley, sichuan, china: Implication for ore genesis

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Science china Earth Sciences 2006年第11期49卷 1135-1146页

作者： LIN Fangcheng1,2 & PAN Guitang2 1. Geoscience college, chengdu university of Technology, chengdu 610059,{4. 2. chengdu Institute of Geology and Mineral Resources, chengdu 610082,{4. 1. Geoscience college Chengdu University of Technology Chengdu 610059 China 2. chengdu Institute of Geology and Mineral Resources Chengdu 610082 China

A number of lead-zinc sulphide deposits have been discovered in recent years in dolo- mitic rocks of the Upper Sinian Dengying Formation in the Dadu River valley region, sichuan Province, china. The lead-zinc mineralization is closely associated with a black siliceous exhalite that has been traced over 50 km of strike. This makes Dadu River valley the most extensive stratiform non-ferrous sulphide horizon having been discovered to date in china. In a previous study by the first author (LIN), these deposits were recognised as belonging to the broad spectrum of lead-zinc sedimentary exhala- tive (SEDEX) deposits. In this paper, seismites and seismogenetic structures occurring in close association with the Dadu River valley mineralized zone are described. The close spatial and temporal relationship between the seismites and mineralization provides strong evidence for the hypothesis that the lead-zinc SEDEX deposits formed in direct response to earthquake activities around the Sinian-Cambrian boundary. The earthquakes are postulated to be an effective dynamic mechanism for triggering the upward migration of deep circulating ore fluids along synsedimentary growth faults and their exhalation onto the sea-floor to form the extensive deposits of stratiform lead-zinc sulphide ore.

关键词： seismites, earthquake, lead-zinc deposit, hydrothermal exhalation, Upper Sinian Dengying Age.