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Geothermal and fluid flowing simulation of ore-forming antimony deposits in Xikuangshan

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Science china Earth Sciences 2006年第8期49卷 862-871页

作者： YANG Ruiyan1,2, MA Dongsheng2, BAO Zhengyu3. PAN Jiayong2, CAO Shuanglin2 & XIA Fei2 1. School of Mathematics and Physics, china university of Geosciences, Wuhan 43.074, china 2. State Key Laboratory for Research of Mineral Deposits, Nanjing university, Nanjing 210093. china 3. faculty of Earth Sciences, china university of Geosciences, Wuhan 43.074, china School of Mathematics and Physics China University of Geosciences Wuhan China State Key Laboratory for Research of Mineral Deposits Nanjing University Nanjing 210093 China faculty of Earth Sciences China University of Geosciences Wuhan China

The Xikuangshan Antimony Deposit located in the Mid-Hunan Basin, china, is the larg- est antimony deposit in the world. Based on the hydrogeological and geochemical data collected from four sections, Xikuangshan-Dajienao (AO), Xikuangshan-Dashengshan (BO), Xikuang- shan-Longshan (CO) and Dafengshan (DO) in the Basin, an advanced metallogenic model related to deep-cyclic meteoric water of Xikuangshan Antimony Deposit is put forward in this paper using a model of heat-gravity-driving fluid flow transportation. The simulation results show that the ore-forming fluid of the deposit mainly comes from the Dashengshan and Longshan areas where BO and CO sections are located if the overall basin keeps a constant atmospheric precipitation and infiltration rate during mineralization, and that the average transportation speed of the ore-forming fluids is about 0.2―0.4 m/a.

关键词： ore-forming fluid, numerical simulation, geothermal field, geofluid transport, Xikuangshan, antimony deposits.

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论回族在构建和谐社会中的积极作用

回族研究 2006年第4期 5-11页

作者：赵杰北方民族大学宁夏银川750021

本文结合回族历史及中阿文化交融来详细论述回族在当今构建社会主义和谐社会中的积极因素,在阐述回族顺利融入中华的历史背景和文化结合基因之后,重点对回族人善于沟通交融的社交能力,回族人平等有序的社会价值观,回族人守护信仰家园的... 详细信息

本文结合回族历史及中阿文化交融来详细论述回族在当今构建社会主义和谐社会中的积极因素,在阐述回族顺利融入中华的历史背景和文化结合基因之后,重点对回族人善于沟通交融的社交能力,回族人平等有序的社会价值观,回族人守护信仰家园的精神富足,回族人重视生殖健康和戒烟戒酒的良好习惯,回族人宽容别人、自觉律己的道德品格,回族人无私“散给”、助人为乐的精神境界六大方面加以例述,最后阐释回族对伊斯兰教义的合理阐发和创新性运用以及回族的发展实践对与时俱进的中国特色民族宗教理论的贡献。

关键词：回族回汉文化和谐社会积极作用民族宗教理论创新

THE SCATTERING OF SH WAVE ON A CENTER CRACK IN THE ORTHOTROPIC FGM AND PZM

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THE SCATTERING OF SH WAVE ON A CENTER CRACK IN THE ORTHOTROP...

中国力学学会学术大会'2005

作者： Liu Junqiao Li Xing (College of science, Hebei Polytechnic university, Tangshan 063.09, china) (faculty of mathematics and computer science,{3., yinchuan 750021, china)

One way to reduce the residual stress in composites is to process fully tailored materials and interfacial zones with predetermined continuously varying mechanical properties. Such materials are known as Functionally Graded Materials (FGM). Some FGM could be described as two-phase particulate composites where the volume fractions of its constituents differ continuously in the thickness direction. This implies that the composition profile could be tailored to give desired thermomechanical properties. One of the most important of these properties is the minimization of crack propagation. In recent years, PZM (the piezoelectric materials),

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论亚里士多德共时态体裁理论

思想战线 2003年第4期29卷 34-38,50页

作者：王毓红宁夏大学中文系宁夏银川750021

亚里士多德体裁理论研究的对象是作为美的艺术的诗,在注重科学性和系统性的前提下,侧重对古希腊时代的特定体裁现象作逻辑的共时水平上的比较和区分。具体做法是:首先在界定诗的性质的基础上对其进行分类,指出作为艺术的诗的一般性法则... 详细信息

亚里士多德体裁理论研究的对象是作为美的艺术的诗,在注重科学性和系统性的前提下,侧重对古希腊时代的特定体裁现象作逻辑的共时水平上的比较和区分。具体做法是:首先在界定诗的性质的基础上对其进行分类,指出作为艺术的诗的一般性法则;然后,由对体裁一般性现象的研究进入到对个别体裁的探讨,论述各种体裁之间的关系,确立其价值;在此基础上,建构起多层次的、立体的体裁分类空间。

关键词：亚里士多德体裁共时态

MATHEMATICAL MODEL OF THE MICROBIAL FLOODING

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Journal of Hydrodynamics 2003年第4期15卷 104-108页

作者： Lei Guang-lun, Zhang Zhong-zhi, Chen Yue-ming faculty of Chemical engineering, university of Petroleum, Beijing 102249,{3. faculty of Chem. Eng. Univ. of Petroleum Beijing 102249 China

On the basis of growth kinetics of microorganism and the principle ofmaterial balance, equations were derived to describe microbial growth, nutrient consumption,metabolites production and their transport in formation. The changes in porosity, permeability, oilviscosity and capillary force were also described as the main facturs of microbial flooding. Forreservoirs with black oil properties, three-dimensional three-phase mathematical models with thecosidara-tion of multi-microbial components were established to depict microbial flooding oil. Withthis model, calculated results are in good agreement with experimental data.

关键词： microbial flooding enhance oil recovery mathematical model

Influence of stacking fault energy on formation of long period stacking ordered structures in Mg-Zn-Y-Zr alloys

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Progress in Natural Science:Materials International 2011年第6期21卷 485-490页

作者： Fu-sheng PAN~(1,2),Su-qin LUO~1,Ai-tao TANG~(1,2),Jian PENG~(1,2),Yun LU~3.1.College of Materials Science and engineering,Chongqing university,Chongqing 400044,china 2.National engineering Research Center for Magnesium Alloys,Chongqing university,Chongqing 400044,china 3.faculty of engineering,Chiba university,Chiba 263.8522,Japan College of Materials Science and engineering Chongqing University Chongqing 400044 China National engineering Research Center for Magnesium Alloys Chongqing University Chongqing 400044 China faculty of engineering Chiba University Chiba 263-8522 Japan

The influence of alloying elements on the stacking fault energy（SFE） of Mg-Y-Zn-Zr alloys was calculated by using first-principles,and the microstructure of as-cast Mg-1.05Y-0.79Zn-0.07Zr（mole fraction,%） alloy prepared by conventional casting was investigated by SEM,TEM and *** block-like long period stacking ordered（LPSO） phase,the lamellar LPSO phase and stacking faults were observed simultaneously and the lamellar LPSO structure and stacking faults were both formed on （0001）α-Mghabit plane and grown or extended along[01 1 0]α-*** calculation results by the first-principles showed that the addition of Y can sharply decrease the stacking fault energy of the Mg-Zn-Y-Zr alloy,while Zn slightly increases the stacking fault energy of the *** influence of stacking fault energy on the formation of LPSO was *** shows that LPSO may nucleate directly through stacking faults and the lower stacking fault energy was in favor of formation of LPSO.

关键词： magnesium alloy Mg-Zn-Y-Zr long period stacking ordered(LPSO) structures stacking fault energy(SFE) firstprinciples calculation

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论习近平文化思想的核心要义

浙江工商大学学报 2024年第03期 5-15页

作者：袁银传邵雪武汉大学马克思主义学院

“推进中国特色社会主义文化建设、建设中华民族现代文明”是习近平文化思想的核心要义，展现了以中国之答回应当代人类文明之问的理论旨趣和用发展着的马克思主义文化理论引领人类文化前进方向的理论创新逻辑。习近平文化思想从人类文... 详细信息

“推进中国特色社会主义文化建设、建设中华民族现代文明”是习近平文化思想的核心要义，展现了以中国之答回应当代人类文明之问的理论旨趣和用发展着的马克思主义文化理论引领人类文化前进方向的理论创新逻辑。习近平文化思想从人类文明发展的高度把握文化建设问题，在“推进中国特色社会主义文化建设”与“建设中华民族现代文明”内在融通中引领人类文明正确前进方向、凝聚当代中国价值共识、推进社会主义文化理论创新发展。以马克思主义文化理论为基础、立足实践推进马克思主义文化理论创新、用中华优秀传统文化充实马克思主义的文化生命、破除西方中心主义的文明观，是对习近平文化思想核心要义的理论把握。深刻把握习近平文化思想的核心要义，有助于深化认识习近平文化思想的理论视野、理论品格和世界历史意义。

关键词：习近平文化思想核心要义文化强国建设中华民族现代文明

来源：博看期刊

Influence of Yb^(3.) concentration on the upconversion luminescence of oxyfluoride material doped with Er^(3.)

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Science china(Physics,Mechanics & Astronomy) 2010年第2期53卷 310-314页

作者： ZHAO SuLing1,XU Zheng1,WANG LiHui2 & S. Wageh3.1 Institute of Optoelectronic Technology,Key Laboratory of Luminescence and Optical Information (Beijing Jiaotong university),Ministry of Education,Beijing 100044,china 2 Department of Physics,Chinese People’s Public Security university,Beijing 10003.,china 3.Physics & engineering Mathematics Department faculty of Electronic engineering Menufiya university,Menouf 3.952,Egypt Key Laboratory of Luminescence and Optical Information (Beijing Jiaotong university) Ministry of Education Institute of Optoelectronic Technology Beijing China (GRID:grid.419897.a) (ISNI:***) Chinese People’s Public Security university Department of Physics Beijing China (GRID:grid.411699.2) (ISNI:***) Physics & engineering Mathematics Department faculty of Electronic engineering Menufiya {3. Menouf Egypt (GRID:grid.411699.2)

In this paper,a new upconversion luminescent material co-doped with Erbium and Ytterbium is reported. The upconversion luminescence transition routes and related properties are studied. The results show that the absorption and emission intensities under excitation of 980 nm laser increase with the increase of the Yb3. concentration. The red emission is stronger than the green emission. The energy transfer process plays an important role in the upconversion mechanism.

关键词： upconversion luminescence Er3. Yb3.

Relationships between bacterial-algal proliferating and mass extinction in the Late Devonian Frasnian-Famennian transition:Enlightening from carbon isotopes and molecular fossils

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Science china Earth Sciences 2005年第10期48卷 1656-1665页

作者： GONG Yiming1,2, XU Ran1, TANG Zhongdao1, SI Yuanlan3.& LI Baohua4 1. faculty of Earth Science and State Key Laboratory of Geological Processes and Mineral Resources, china university of Geosciences, Wuhan 43.074, china 2. Institute of Resources & Environments, Henan Polytechnic university, Jiaozuo 454003. china 3. Department of Computer Science, South-Central university for Nationalities, Wuhan 43.074, china 4. Laboratory of Marine Geology, Tongji university, Shanghai 200092, china china university of Geosciences Henan Polytechnic university South-Central university for Nationalities Tongji university

Studies show positive shifts of inorganic and organic carbon isotope values (δ 13.carb and δ 13.kerogen) from +0.43.(‰ V-PDB) to +3.54 (‰ V-PDB) and from ?29.3. (‰ V-PDB) to ?24.14 (‰ V-PDB), respectively, B* (Ba* = Ba/ (Al2O3.X 15%)) values from 0.015 to 0.144, TOC values from 0.02% to 0.21%, V/Cr values from 0.3.to 2.0, Sr/Ba values from 3.20 to 49.50 in the Late Devonian Frasnian Upper rhenana zone to the top linguiformis zone of the Yangdi sec-tion deposited in carbonate slope facies of Guilin, Guangxi, South china, which indicates that biomass, productivity, organic carbon burial and salinity increase and that oxygenation near the boundary between sediments and waters decreases from the Late Devonian Frasnian Upper rhenana zone to the top linguiformis zone. Abundance of molecular fossils increases and normal alkanes, isoprenoid hydrocarbon, terpanes and steranes are dominated from the Late Devonian Frasnian to the bottom of Famennian, which shows that the predecessors of molecular fossils of the Frasnian-Famennian (F-F) transition are dominated by marine phytoplankton, zooplankton and benthic bacteria with no photosynthesis. Therefore, it is considered that the F-F transitional mass extinction with a multistage, selection and global synchronizing was caused by bacte-rial-algal proliferating, continuing deterioration of the shallow marine ecoenvironment of the mid-dle-lower latitudes. A simple cause and effect chain can be expressed as: appearance of seed plants and multi-storied forests → enhanced chemical and biochemical weathering and pe-dogenesis → wide development of soils → increasing riverine nutrient fluxes in epicontinental sea → from superoligotrophic to eutrophic in epicontinental sea → proliferating of marine phyto-plankton and zooplankton → frequent red tide and anoxia → mass extinction of shallow marine organisms in the middle-lower latitudes. It is worth notice that the factor drawdown of atmos-pheric Pco2, climatic cooling and sea level falling c

关键词： mass extinction, bacteria-algae, carbon isotopes, molecular fossils, biodiversity, Late Devonian, Guangxi, South china.