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Journal of Systematics and Evolution 2011年第4期49卷 330-338页

作者： Leonard b.THIEN Cell and Molecular biology Department Tulane University

This study analyses the pollination systems and biogeography of three allopatric species of Schisandra (Section Euschisandra) consisting of *** (North America),*** (China),and *** (Japan);the clade is delimited in a phylogenetic tree of Schisandraceae constructed with nuclear and plastid *** male and female flowers of these species have similar floral structures,but exhibit different pollination *** the base of the clade,*** is pollinated by a wide variety of beetles and flies in a generalist pollination system that also includes floral heat and the use of male and female flowers as brood sites for *** Asia,however,*** and *** are pollinated exclusively by one or two different species of gall midges (Resseliella spp.) in a specialist pollination *** this system only female,pollen-eating gall midges pollinate the flowers and breed on nearby *** gall midge pollination system is specialized and derived from the generalist system in ***,and basal in the *** is the main floral resource,and we hypothesize it is exploited to enrich eggs,and as a result species of gall midges could increase reproductive fitness by feeding on a single dependable food *** the life cycles of the plants and insects evolved into a tight association in old stable plant communities in the Sino-Japanese *** times for the plant species are presented and correlated with past distributions and migration routes.

关键词： biogeography Diptera phylogeny pollination Resseliella Schisandra.

Effect of oophorectomy and exogenous estrogen replacement on liver injury in experimental obstructive jaundice

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World Journal of Gastroenterology 2008年第18期14卷 2818-2824页

作者： Hamdi bülent Uan Mehmet Kaplan bülent Salman Utku YIlmaz b bülent Mentes Cemalettin Aybay Department of General Surgery Karaelmas University Medical School Zonguldak 67100 Turkey Department of General Surgery Gaziantep State Hospital Gaziantep Department of General Surgery Gazi University Medical School Ankara 06500 Turkey Department of Immunology Gazi UniversityMedical School Ankara 06500 Turkey

AIM: To investigate the role of estrogen on liver injury in an experimental obstructive jaundice ***: Three groups of female rats were constituted; group 1 was oophorectomized and given E2 (n = 14), group 2 was oophorectomized and given placebo (n = 14), and group 3 was sham operated (n = 14). Fourteen days following constitution of bile duct ligation, all groups were compared in terms of serum tests, histopathologic parameters, and tissue levels of IFN-γ and ***: The parameters representing both the injury and/or the reactive response and healing were more pronounced in groups 1 and 2 (χ2 = 17.2, χ2 = 10.20; χ2 = 12.4, P bo group (P bserved to be more pronounced in the groups 1 and 3 (χ2 = 6.13, P both the liver damage and healing. In the conditions of bile duct obstruction, estrogen significantly changed the cytokine milieu in the liver.

关键词： Estrogen Liver injury Oophorectomy Obstructive jaundice

A comprehensive approach to an equation of state for hard spheres and Lennard Jones fluids

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Chinese Physics b 2011年第8期20卷 271-278页

作者： S.b.Khasare 90 New Jagruti Colony Katol Road NagpurIndia

We present a simple method of obtaining various equations of state for hard sphere fluid in a simple unifying way. We will guess equations of state by using suitable axiomatic functional forms （n = 1, 2, 3, 4, 5） for surface tension Sn （r）, r≥ d/2 with intermolecular separation r as a variable, where m is an arbitrary real number （pole）. Among the equations of state obtained in this way are Percus-Yevick, scaled particle theory and Carnahan-Starling equations of state. In addition, we have found a simple equation of state for the hard sphere fluid in the region that represents the simulation data accurately. It is found that for both hard sphere fluids as well as Lennard-Jones fluids, with m = 3/4 the derived equation of state （EOS） gives results which are in good agreement with computer simulation results. Furthermore, this equation of state gives the Percus-Yevick （pressure） EOS for the m = 0, the Carnahan-Starling EOS for rn = 4/5, while for the value of m = 1 it corresponds to a scaled particle theory EOS.

关键词： equation of state Lennard-Jones potential hard-sphere potential computer algebra,computer simulation

On a biseparability criterion of bipartite qudit state

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Chinese Physics b 2019年第8期28卷 42-49页

作者： b benzimoun M Daoud LPHE-Modeling and Simulation Faculty of SciencesUniversity Mohammed ⅤRabatMorocco Department of Physics Faculty of Sciences-Ain ChockUniversity Hassan ⅡCasablancaMorocco Abdus Salam International Centre for Theoretical Physics TriesteItaly

In this paper,we propose a new approach to tackle the separability problem for bipartite qudit *** is based on the Majorana representation which allows to represent a N-spinors(qudit)as a symmetric state of N spin-1/*** also discuss how we can exploit such representation and the notion of the biseparability of multipartite qubit states in the sense to establish new criteria of the separability problem based on the PPT and concurrence.

关键词： separability bipartite qubit state partial separability Majorana representation

biodiversity and interactions of acidophiles:Key to understanding and optimizing microbial processing of ores and concentrates

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中国有色金属学会会刊：英文版 2008年第6期18卷 1367-1373页

作者： D.b.JOHNSON School of biological Sciences Bangor University

采矿公司为从低档矿石恢复贱、宝贵的金属，并且为重新调停变得逐渐地知道 microbiological 途径的潜力从操作和放弃的矿地点排干的酸的、充满金属的废水。生物系统出现很多环境并且(有时) 超越常规途径的节俭的优点尽管他们的申请是，... 详细信息

采矿公司为从低档矿石恢复贱、宝贵的金属，并且为重新调停变得逐渐地知道 microbiological 途径的潜力从操作和放弃的矿地点排干的酸的、充满金属的废水。生物系统出现很多环境并且(有时) 超越常规途径的节俭的优点尽管他们的申请是，例如热冶学，别处于每种状况拨出。矿物质用微生物处理为提取黄金，铜，铀和钴被利用了，并且当前的开发正在指向另外的贱金属。最近，我们 biomining 环境，并且微生物怎么与对方一起交往的微生物学的差异的知识和理解有大增加。从模仿了搅动的坦克和堆生物反应器系统的实验室实验的结果证明了微生物引起的协会比氧化矿物质的 acidophiles 的纯文化更柔韧，并且也趋于在 bioleaching 和氧化简历的矿石更有效并且专注。纸论述了性质的简明评论和涉及硫化物矿物质的氧化的微生物引起的协会的相互作用，并且这些怎么可能被改编在 biomining 操作遇见未来挑战。

关键词：嗜酸细胞生物采矿生物多样性微生物加工

Characterizations of dissimilar S32205/316L welds using austenitic, super-austenitic and super-duplex filler metals

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International Journal of Minerals,Metallurgy and Materials 2020年第1期27卷 119-127页

作者： A.Taheri b.beidokhti b.Shayegh boroujeny A.Valizadeh Department of Materials Engineering Najafabad BranchIslamic Azad UniversityIsfahan ***Iran Materials and Metallurgical Engineering Department Faculty of EngineeringFerdowsi University of MashhadMashhad ***Iran Department of Engineering Shahrekord UniversityShahrekord 88186-34141Iran brunel Centre for Advanced Solidification Technology(bCAST) Brunel UniversityUxbridge UB83PHUK

UNS S32205 duplex stainless steel plates were welded to AISI 316 L stainless steel using the pulsed gas tungsten arc welding process with three different filler metals: ER2594, ER312, and ER385. The microstructures of the welds were characterized using optical and scanning electron microscopy, and all of the specimens were evaluated by ferrite measurements. The mechanical properties were studied through hardness,tensile, and impact tests. In addition, the pitting resistance equivalent number was calculated and cyclic polarization tests were performed to evaluate the corrosion resistance of the weld metal. The results showed that chromium nitride was formed in the heat-affected zone of the duplex side,whereas no sigma phase was detected in any of the specimens. The ferrite number increased from the root pass to the final pass. The absorbed energies of the impact test decreased with increasing ferrite number, whereas the tensile strength was enhanced. The fully austenitic microstructure of the specimen welded with ER385 exhibited the highest resistance to pitting corrosion at 25°C, and the super-duplex weld metal presented superior corrosion resistance at 50°C.

关键词： stainless steel mechanical properties microstructure welding

Field topologies in ideal and near-ideal magnetohydrodynamics and vortex dynamics

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Science China(Physics,Mechanics & Astronomy) 2015年第1期58卷 12-31页

作者： LOW b.C. High Altitude Observatory National Center for Atmospheric Research

Magnetic field topology frozen in ideal magnetohydrodynamics （MHD） and its breakage in near-ideal MHD are reviewed in two parts, clarifying and expanding basic concepts. The first part gives a physically complete description of the frozen field topology derived from magnetic flux conservation as the fundamental property, treating four conceptually related topics： Eulerian and La- grangian descriptions of three dimensional （3D） MHD, Chandrasekhar-Kendall and Euler-potential field representations, magnetic helicity, and inviscid vortex dynamics as a fluid system in physical contrast to ideal MHD. A corollary of these developments clar- ifies the challenge of achieving a high degree of the frozen-in condition in numerical MHD. The second part treats field-topology breakage centered around the Parker Magnetostatic Theorem on a general incompatibility of a continuous magnetic field with the dual demand of force-free equilibrium and an arbitrarily prescribed, 3D field topology. Preserving field topology as a global con- straint readily results in formation of tangential magnetic discontinuities, or, equivalently, electric current-sheets of zero thickness. A similar incompatibility is present in the steady force-thermal balance of a heated radiating fluid subject to an anisotropic thermal flux conducted strictly along its frozen-in magnetic field in the low-fl limit. In a weakly resistive fluid the thinning of current sheets by these general incompatibilities inevitably results field notwithstanding the small resistivity. Strong Faraday in sheet dissipation, resistive heating and topological changes in the induction drives but also macroscopically limits this mode of energy dissipation, trapping or storing free energy in self-organized ideal-MHD structures. This property of MHD turbulence captured by the Taylor hypothesis is reviewed in relation to the Sun＇s corona, calling for a basic quantitative description of the breakdown of flux conservation in the low-resistivity li

关键词： magnetic topology magnetic reconnection current sheets magnetic helicity thermal conduction solar corona magnetohy-drodynamics interstellar clouds

NONLINEAR FREE SURFACE ACTION WITH AN ARRAY OF VERTICAL CYLINDERS

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Acta Mechanica Sinica 2004年第3期20卷 247-262页

作者： HUANG J.b. Department of Engineering Science University of OxfordUK

Nonlinear diffraction of regular waves by an array of bottom-seated circular cylindersis investigated in frequency domain,based on a Stokes expansion approach.A complete semi-analyticalsolution is developed which allows an efficient evaluation of the second-order potentials in the entirefluid domain,and the wave forces on the *** are derived for the second-orderpotential in the vicinity of individual *** expressions have a simple form,thus providingan effective means for investigating the wave enhancement due to nonlinear interactions with *** on the present method,the wave run-up and free-surface elevations around an arrayof two,three and four cylinders are investigated numerically.

关键词： nonlinear wave diffraction water waves frequency analysis semi-analytical method

Thermodynamic study of fluid in terms of equation of state containing physical parameters

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Chinese Physics b 2015年第1期24卷 382-387页

作者： S.b.Khasare Department of Physics Science College Congress Nagar Nagpur Maharashtra State India

We introduce a simple condition for one mole fluid by considering the thermodynamics of molecules pointing towards the effective potential for the cluster. Efforts are made to estimate new physical parameter f in liquid state using the equation of state containing only two physical parameters such as the hard sphere diameter and binding energy. The temperature dependence of the structural properties and the thermodynamic behavior of the clusters are studied. Computations based on f predict the variation of numbers of particles at the contact point of the molecular cavity（radial distribution function）.From the thermodynamic profile of the fluid, the model results are discussed in terms of the cavity due to the closed surface along with suitable energy. The present calculation is based upon the sample thermodynamic data for n-hexanol, such as the ultrasonic wave, density, volume expansion coefficient, and ratio of specific heat in the liquid state, and it is consistent with the thermodynamic relations containing physical parameters such as size and energy. Since the data is restricted to n-hexanol, we avoid giving the physical meaning of f, which is the key parameter studied in the present work.

关键词： equations of state Lenard–Jones potential hard-sphere potential

MULTIPLE CRITERIA DECISION MAKING： DISCORDANT PREFERENCES AND PRObLEM DESCRIPTION

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Journal of Systems Science and Systems Engineering 2007年第1期16卷 22-33页

作者： Alexey b. PETROVSKY Institute for Systems Analysis Russian Academy of Sciences Prospect 60 Let Octyabrya 9 Moscow 117312 Russia

There are many practical decision problems where decision makers＇ preferences may be inconsistent and contradictory. In this paper, new methods for ordering and classifying multi-attribute objects by discordant collective preferences are suggested. These methods are based on the theory of multiset metric spaces. The proposed techniques are applied to ranking companies and a competitive selection of projects, which are estimated by several experts upon multiple qualitative criteria.

关键词： Multiple criteria decision making discordant collective preferences multiset metric space