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The role of STAT-6/KLF-4/PPAR-γ activation in alveolar macrophage polarization changes in silicainduced pulmonary fibrosis

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China Medical Abstracts (Internal Medicine) 2022年第4期 207-208页

作者：姚着猛 dept occup health & environ health Sch Public HealthAnhui Med Univ

Objective To observe the effect of silicon dioxide(SiO2) on the polarization of alveolar macrophages(AMs),and to explore the expressions and the significance of signal transducer and activator of transcription-6(STAT-6)/Krüippel-like factor-4(KLF-4)/peroxisome proliferators-activated receptors-γ(PPAR-γ) signaling molecules in *** In November2020,C57BL/6 mice were randomly divided into crystalline SiO2group and normal saline(NS) group,

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Current status of depression among workers in a petrochemical enterprise in Liaoning Province,China and related influencing factors

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China Medical Abstracts(Internal Medicine) 2021年第1期38卷 17-18页

作者： REN guangchao dept occup&environ health Public Health SchChina Med UnivShenyang 110122

Objective To investigate the influencing factors for depression among workers in a petrochemical enterprise and the association of occupational stress and occupational environment with depression,and to provide a scientific basis for the improvement of mental health and the prevention and treatment of depression among workers in petrochemical enterprises.

关键词： petrochemical workers enterprises

Abnormal mitochondrial fusion and fissionin PBDE-47-induced change in mitochondrial mass in PC12 cells

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China Medical Abstracts(Internal Medicine) 2019年第2期36卷 73-74页

作者： YANG Kaichao dept occup environ health Sch Public HealthTongji Med CollHuazhong Univ Sci TechWuhan 430030

Objective To investigate the effect of 2,2’,4,4’-tetrabromodiphenyl ether (PBDE-47) on the mitochondrial mass in rat adrenal pheochromocytoma (PC12)cells and the potential mechanisms. Methods Highly differentiated P... 详细信息

关键词： PC Abnormal mitochondrial fusion PC12 cells

COMPOSITE MODELING APPROACH AND EXPERIMENTAL STUDY FOR SUBSURFACE TRANSPORT OF CONTAMINANTS FROM LAND-DISPOSAL SITES

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Journal of Hydrodynamics 2003年第4期15卷 1-9页

作者： Wang Chao, Wang Pei-fang, Li Yong Department of environmental Engineering, Hohai University, Nanjing 210098, China dept. of environ. Eng. Hohai Univ. Nanjing 210098 China

A composite modeling approach was presented for simulating thethree-dimensional (3-D) subsurface transport of dissolved contaminants with transformation *** approach was based on vertical infiltration and contaminant transport in the unsaturated zoneand 3-D groundwater flow and contaminant migration in the saturated zone. Moisture movement andgroundwater flow were considered to be steady, but contaminant transport was treated as continuousand transient. The transformed unsaturated zone and saturated zone transport equations were solvednumerically with different techniques. The model contains a 3-D solution to flow and transport inthe saturated zone, as well as two-dimensional solutions to vertical cross-sectional and arealscenarios. In order to verify the composite modeling, extensive experiments were conducted in twolarge-scale variable-slope soil tanks of 1200cm in length, 150cm in width and 150cm in height. Sandsoil was filled in the tank as the porous media. The solutions of KBr or NH_4C1 were introduced intoeach soil tank from 80 X 37cm^2 area sources located on the top of the porous medium. Results fromnumerical simulations were compared with the data from tests. Predicted results are in goodagreement with the experimental data.

关键词： composite modeling groundater flow finite element model experiment

Geochemistry of Rare Earth Elements of Anqing Copper Deposit in Anhui Province

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Journal of Rare Earths 2002年第3期20卷 223-227页

作者：袁峰周涛发刘晓东岳书仓 dept. of Resources and environ. Sci. Hefei Univ. of Technol. Hefei 230009 China

The geochemical features of REE were studied by comparing the copper ore with the skarn, the diorite and the stratum, to trace the source of metallogenic materials in Anqing copper deposit, Anhui. The origin of metallogenic hydrothermal fluids was studied through simulating REE pattern of the balanceable hydrothermal fluids. The results indicate that the metallogenic materials come from the diorite and the metallogenic hydrothermal fluids come from the dioritic magma. The results also show that the rare earth elements are relatively mobile during metallization.

关键词： rare earths geochemistry copper deposit Anqing

Geochemistry of Rare Earth Elements in Aktishikan Gold Deposit,Xinjiang

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Journal of Rare Earths 2002年第4期20卷 308-312页

作者：袁峰周涛发岳书仓 dept. of Resources and environ. Sci. Hefei Univ. of Technol. Hefei 230009 China

The characteristics and the models of rare earth elements in the geological bodies and the hydrothermal water balanced with the adamellite were comprehensively studied in Aktishikan gold deposit,Nurt area of Altay,*** the behavior of rare earth elements during metasomatic alteration was discussed by using the isocon method of *** results show that the rare earth elements are inert during metasomatic alteration,the hydrothermal water has no relation to the magmatic water,and the gold material sources mainly stem from the wall rock.

关键词： rare earths geochemistry isocon diagram gold deposit Aktishikan

Factors Affecting Cr(Ⅲ) Oxidation by Manganese Oxides

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Pedosphere 1997年第2期7卷 185-192页

作者： CHEN YINGXU CHEN YIYI LIN QI HU ZIQIANG HU HONG and WU JIANYANG(dept. of environ. Sci., Zhejiang Agricultural Univereity, Hangzhou, 310029 (China)) dept. of environ. Sei Zhejiang Agricultural University Hangzhou 310029 China

The high oxidation ability of manganese oxides or soils was used to study effects of pH and coatingon Cr(Ⅲ) oxidation. The results indicated that Cr(Ⅲ) oxidation peaked in pH 4.0-6.5. The amount andrate of Cr(Ⅲ) being oxidized by uncoated δ-MnO2 were larger than those by Fe oxide- or CaCO3-coatedone. Inorganic Cr(Ⅲ) was more easi1y oxidized by MnO2 than organic complex Cr(Ⅲ) due to differentsurface affinities. Precipitated Cr(Ⅲ) and adsorbed Cr(Ⅲ) might be transferred onto MnO2 surface andthen oxidized to Cr(VI).

关键词： chromium environmental chemistry kinetics manganese oxides oxidation

GLOBAL VIEW OF MICROSTRUCTURAL EVOLUTION:ENERGETICS,KINETICS AND DYNAMICAL SYSTEMS

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Acta Mechanica Sinica 1996年第2期12卷 144-157页

作者：杨卫锁志钢 dept.Eng.Mech. Tsinghua Univ.Beijing 100084China Mech.environ.Eng.dept. Univ.CaliforniaSanta BarbaraCA 93106USA

An evolving material structure is in a non-equilibrium state, with free energy expressed by the generalized coordinates. A global approach leads to robust computations for the generalized thermodynamic forces. Those forces drive various kinetic processes, causing dissipation at spots, along curves, surfaces and interfaces, and within volumetric regions. The actual evolution path, and therefore the final equilibrium state, is determined by the energetics and kinetics. A virtual work principle Links the free energy landscape and the kinetic processes, and assigns a viscous environment to every point on the landscape. The approach leads to a dynamical system that governs the evolution of generalized coordinates. The microstructural evolution is globally characterized by a basin map in the coordinate space; and by a diversity map and a variety map in the parameter space. The control of basin boundaries raises the issue of energetic and kinetic bifurcations. The variation of basin boundaries under different sets of controlling parameters provides an analytical way to plot the diversity maps of structural evolution.

关键词： microstructural evolution energetics kinetics dynamic system

An approach to the estimation of solute hydrogen-bond donor acidity

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Chinese Science Bulletin 1996年第9期41卷 732-735页

作者：冯流韩朔睽王连生 dept. of environ. Sci. and Eng. Nanjing University Nanjing 210093 China

Hydrogen-bond donor acidity α~H, an important parameter for the linear solvation energyrelationship (LSER) theory, can be experimentally measured or estimated indirectly bysome methods. But it is time-consuming and difficult to measure this parameter. Inthis note, a new approach is presented to estimate it on the basis of the LSER theory.

关键词： sotvatochromic parameter partition coefficient linear solvation energy relationship.