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| 1 | Permian Alkaline Granites in Central Inner Mongolia and Their Geodynamic Significance显示文摘Alkaline granites (Rb-Sr ages 276-286 Ma)occurring in the Bayan Ul-East Ujimqin belt at the southern margin of the Siberian plate originated in a tensional tectonic environment about 60 Ma earlier than the Late Devonian to Early Carboniferous collision between the Siberian and Sino-Korean plates. They belong to post-orogenic A-type granites and may be used as an indicator of the end of the orogeny. At the northern margin of the Sino-Korean plate, however, only late-orogenic calc-alkaline granites occurred during the late Caboniferous-Permian, and alkaline syenites did not appear until the Late Triassic. The asymmetric magmatism at the margins of the two neighbouring plates might be controlled by the differences in size and mass of the two plates. | Hong Dawei, Huang Huaizeng, Lithosphere Research Center, Chinese Academy of Geological Sciences, BeijingXiao Yijun, Institute of Geology, Chinese Academy of Geological Sciences, BeijingXu Haiming,Institute of Mineral Deposits, Chinese Academy of Geological Sciences, Beijingand Jin M anyuanTianjin Geological Academy, Ministry of Metallurgical Industry, Tianjin Fei Zhenbi | 1995 | Acta Geologica Sinica(English Edition)1995，69，1： | 40 |
| 2 | Recent Advances in Swine Amino Acid Nutrition显示文摘Recent advances in swine protein nutrition are characterized by the development of functional amino acids(AA)in regulating fetal and postnatal survival,growth and development.These AA include arginine,glutamine,glutamate,proline,leucine,cysteine and tryptophan.Due to limited knowledge on AA nutrition,pork producers have traditionally paid little attention to supplementing the arginine family of AA to swine diets.Results of recent studies indicate that functional AA serve important regulatory functions in nutrient metabolism,protein turnover,and immune function,therefore enhancing efficiency of feed utilization by pigs.The underlying mechanisms include activation of nitric oxide,mammalian target of rapamycin,gaseous signaling,and AMP-activated protein kinase pathways,as well as anti-oxidative function.Dietary supplementation with arginine,glutamine,proline or leucine to weanling piglets enhances their growth performance.Arginine or glutamine is also effective in increasing milk production by lactating sows.Furthermore,supplementing arginine to the diet of pregnant gilts between days 30 and 114 of gestation increases the number of live-born piglets and litter birth-weight.Availability of feed-grade functional AA holds great promise for improving animal health and nutrient utilization in pig production worldwide.Additionally,feedstuffs of animal origin [e.g.,blood meal(ring dried),feather meal(hydrolyzed),meat and bone meal,porcine protein meal,and poultry by-product meal(both feed-and petfood-grades)] are excellent and cost-effective sources of both essential and functional AA for formulating balanced swine diets.New knowledge on AA nutrition provides a much needed scientific basis for revising the next edition of swine nutrient requirements. | Guoyao Wu Department of Animal Science and Faculty of Nutrition,Texas A&M University,College Station,TX,77843,U.S.A and State Key Laboratory of Animal Nutrition,China Agricultural University,Beijing,100193,China | 2010 | Journal of Animal Science and Biotechnology2010，1，2： | 7 |
| 3 | N_2O emissions from agricultural soils in the North China Plain: the effect of chemical nitrogen fertilizer and organic manure显示文摘An enclosed chamber technique was used to measure N 2O emissions from intensively agricultural soils of the North China Plain during the periods of 1995—1996 and 1997—1998, to reflect distinct components of winter wheat and summer maize growing seasons. The results showed that the continuous application of fertilizer in agricultural soils increased N\-2O emissions by a factor of 24.1—28.1, the calculated annual chemical N fertilizer\|transformed N\-2O\|N emissions was 0.67%. Our results indicated that the application of organic manure also had a significant influence on soil N 2O emissions, which combined with the use of chemical N increased about 20% in a year. It was calculated that there were about 0.11% N of organic manure transformed as N 2O N. Annual mean N 2O emission from our study area of fertilized soils was estimated to be 57.1 μgN 2O/(m 2·h). A weak correlation was also found between N 2O emissions and soil available nitrogen content NH + 4. | DONG Yun\|she 1,2,3 , Dieter Scharffe 2, Manfred Domroes 3, QI Yu chun 1, ZHANG Shen 1 (1. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China E\|mail: dongys@dls.iog.ac.cn 2. M | 2000 | Journal of Environmental Sciences2000，12，4： | 6 |
| 4 | An Internal State Variable Model for the Low Temperature Tempering of Low Alloy Steels显示文摘An internal state variable (ISV) framework is used to predict the rate and degree of strain relaxation associated with the stage I, low temperature tempering of martensite. A single variable tracks the change in volume between the tempered an untempered structures. The rate at which this occurs is taken to be a function of martensite fraction, temperature, degree of tempering, and carbon concentration. Experimental dilatometty data is used to both fit and validate the model. | Mark T. Lusk, Young-Kook Lee, Herng-Jeng Jou, William H. Elliott, Gerard M Ludtka 1.Materials Science Program, Division of Engineering, Colorado School of Mines, Golden, CO. U.S. 80401 2.Questek Innovations LCC, 1801 Maple Avenue, Evanston, IL, U.S. 602 | 2000 | Journal of Shanghai Jiaotong university(Science)2000，5，1： | 5 |
| 5 | A Theoretical Study on Pyrolysis and Sensitivity of Energetic Compounds(Ⅴ)──Nitro Derivatives of Methylbenzene显示文摘UHF-SCF-AM1 MO calculations were performed for two kinds of pyrolysis reactions of seven nitro derivatives of methylbenzene(homolysis reactions by the rupture of bond C-NO2 into radicals and isomerization reactions in the way of methyl H transferring to the ortho nitro O atom). The molecular geometries of the reactants, the transition states and the products of the fourteen reactions were fully optimized. The activation energies for these two kinds of reactions have been obtained. The results indicate that this category of compounds is more easily pyrolyzed by being initiated via isomerization reactions. A parallel relationship exists between the activation energy of the isomerization reactions and the impact sensitivity of the seven titled compounds. | GU Zhi-ming FAN Jian-fen XIAO He-ming and DONG Hai-shan (Department of Chemistry, Nanjing University of Science and Technology, Nanjing 210094, P. R. China Department of Chemistry, Suzhou University, Suzhou 215006, P. R. China Institute of Chemical M | 2000 | Chemical Research in Chinese Universities2000，16，1： | 4 |
| 6 | Fluid Inclusion Geochemistry of Metallic Ore Deposits in the South- Central Sector of theDa Hinggan Mountains in China显示文摘Physicochemical parameters of mineralization such as temperature, pressure, salinity, density, composition and boiling of ore fluids as well as pH, Eh, fo2 and reducing parameter in theprocess of mineralization of major ore deposits in the study district have been obtained by the authors through systematic observation and determination of characteristics and phase changes of fluid inclusions at different temperatures and analysis of gaseous and liquid phase compositions of the inclusions, thus providing a scientific basis for the division of mineralization-alteration stages, types of mineral deposits and minerogenetic series and the deepening of the knowledge about the ore-forming processes and mechanisms of mineral deposits. It is indicated that the deposits of the same type have similar fluid inclusion geochemical features and physicochemical parameters though they belong to different minerogenetic series, while the compositions of inclusions are not conditioned by deposit types but closely related | Sheng Jifu, Zhang Dequan and Li YanInstitute of Mineral Deposits, Chinese Academy of Geological Sciences, Beijing Jiang M inxi | 1995 | Acta Geologica Sinica(English Edition)1995，69，3： | 3 |
| 7 | A NEW FLAVONE C-GLYCOSIDE FROM SCUTELLARIA BAICALENSIS显示文摘ANEWFLAVONEC-GLYCOSIDEFROMSCUTELLARIABAICALENSIS￥YongYuZHANG;XianLI;YunZhenGOU(ShenyangPharmaceuticalUniversity,Shenyang11001... | Yong Yu ZHANG Xian LI Yun Zhen GOU(Shenyang Pharmaceutical University, Shenyang 110015)Yoshihiro HARIGAYA, Masayuki ONDASchool of Pharmaceutical Sciences, Kitasato University, Tokyo 108 ,JapanKadsunort H^SHIMO’rO, yukinobu iK EYA, Minoru OKAD^, cacao M^ | 1994 | Chinese Chemical Letters1994，5，10： | 3 |
| 8 | The conversion factor of K_(eff) to K_(3.7) in thermoluminescence dating显示文摘In the fine-grain TL dating the full o dose must be converted into the equivalent P dose. The conversion is finished by Keff-value, which is an effective or effectiveness. But the Keff can not be measured directly for each sample and only the external radiative efficiency K3.7 can be measured. In order to obtain the Keff a special study for the conversion factor of Keff to K3.t has been made using the ultrathin TLD. The results show that the conversion factor of tile TLD for archaeological samples is 0.847, which is in agreement with calculated value 0.85. | Wang Wei-Da Zhou Zhi-Xin Xia Jun-Ding (Research Laborotory for Conservation and Archaeology, Shanghai Museum, Shanghai 200951)Leung P L Stokes M J(Department of Physics and Materials Science, City University of Hong Kong) | 1998 | Nuclear Science and Techniques1998，9，4： | 3 |
| 9 | Huperzine H, a New Lycopodium Alkaloid from Huperzia serrata显示文摘A new lycopodium alkaloid with a novel skeleton was isolated from Huperzia serrata.Its structure was determined on the basis of spectral evidences. | Wen Yun GAO Yi M lug LI Bac De WANG Da Yuan ZHU(State Key Laboratory of New Drug Research. Shanghai Institute of Materia Medica. ChineseAcademy of Sciences, Shanghai 200031) | 1999 | Chinese Chemical Letters1999，10，6： | 2 |
| 10 | Effects of Preheating Temperature, Moisture and Sodium Metabisulfite Content on Property of Maize Flour Dough显示文摘Processing temperature, maze flour particle size, and level of water and sodium metabisulfite were varied during the preparation of maize noodles. Preheated to 90—95 ℃ a mixture of maize flour or meal, water(43%—45% moisture) and salt enabled the preparation of noodles using a pasta extruder. Maize flour with smaller particle size yielded better noodles than did maize meal. The addition of sodium metabisulfite enabled the production of noodles at lower processing temperatures; however, cooking losses increased. Processing maize flour with higher water absorption yielded noodles that required longer cooking time but with decreased losses. The functionalities of starch and protein in raw ingredients and in products were determined. Starch gelatinized and retorgraded during processing maize noodles, as indicated by changes in pasting viscosity curves. Maize proteins contributed to the increased viscosity of dough above 40 ℃. The increased integrity of cooked maize noodles, however, corresponded to the increased amounts of gelatinized and retrograded starch. | TONG Yi 1, Waniska Ralph D. 2 and LI Wei 1** (1. College of Life Science, Jilin University, Changchun, 130023 2. Cereal Quality Laboratory, Department of Soil & Crop Sciences, Texas A & M University, College Station, Texas, 77843 24474) | 2000 | Chemical Research in Chinese Universities2000，16，3： | 2 |
| 11 | SOURCE RADIATION AND RESPONSES OF WAVE PROPAGATION显示文摘Recordings of seismic waves propagating from earthquake source to a station at the earth’s surface are a system response function. The convolution operator in time domain can be simplified as a multiplication operator in frequency domain. We discuss in frequency domain the separation of source, path and site effects for global scaling of earthquake source radiation. Also discussed are source scaling model, faulting mechanism, and the H/V inversion problems with crustal and near surface structures. Gross features of apparent source spectra appear to be not much region dependent although there may be difference between tectonic styles within a region of tectonic mixture for which we need further study as data accumulate. Vertical spectra may be a better approach to approximate source radiation, as it has less crustal amplification effects than horizontal spectra. The H/V ratio is evidently a comprehensive indicator of amplification effects from near surface to deep structure. This gives it potential as an inversion tool to deduce site crustal structure. | CHEN Sheng zao 1 and Gail M Atkinson 2 (1. Geomatrix Consultants, Inc., 2101 Webster St., 12 th Floor, Oakland, CA 94612, USA, formerly at Dept. Earth Sciences & Ottawa Carleton Geoscience Center, Carleton University, Ottawa, Canada 2. Dept. Ea | 2001 | Geotectonica et Metallogenia2001，25，1： | 2 |
| 12 | Discrete large eddy simulation显示文摘Despite the intense effort expended towards obtaining a model for describing the turbulent flows of fluid, there is no model at hand that can do an adequate job. This leads us to look for a non-traditional approach to turbulence modeling. In this work we conjoin the notion of large eddy simulation with those of fuzzy sets and neural networks to describe a class of turbulent flows. In previous works we had discussed several issues concerning large eddy simulation such as filtering and averaging. Here, we discuss the use of fuzzy sets to improve the filtering procedure. | L. TAO, K. R. RAJAGOPAL and G. Q. CHEN(Department of Mechanical Engineering, Texas A&M University, College Station, Texas 77843-3123,USACentre for Environmental Sciences, Peking University, Beijing 100871, China | 2001 | Communications in Nonlinear Science and Numerical Simulation2001，6，1： | 2 |
| 13 | RESEARCH ON SUPERPLASTICITY IN SiCp/2024Al AND SiCp/8090Al-Li COMPOSITES显示文摘The superplasticity in SiCp/Al alloy and SiCp/Al Li Composites is introduced The composites are prepared by powder metallurgy and cast methods The superplastic parameters are measured Superplastic treatment processing,secondary plastic working and the study of mirostructure are conducted. | Zhang Libin, Wang Zongren (School of Materials Science and Engineering,Harbin Institute of Technology) Hai Jintao (China Academy of Machinery Science and Technology) Sano T Murakoshi Y Takahashi M Hanada K Mechanical Engineering Laboratory,AIST,MITI,J | 2001 | Chinese Journal of Mechanical Engineering2001，14，4： | 2 |
| 14 | A New Mathod for Conversion of Nitriles to Primary Alcohols显示文摘ANewMathodforConversionofNitrilestoPrimaryAlcohols￥GuangDianHAN(InstituteofMateriaMedica,PekingUnionMedicalCollege,ChineseAca... | Guang Dian HAN(Institute of Materia Medica, Peking Union Medical College, Chinese Academy of Medical Sciences,Beijing 100050)Song Kee CHUNG(Department of Chemistry, Texas A&M University, College Station. Texas 77843) | 1996 | Chinese Chemical Letters1996，7，12： | 1 |
| 15 | Low serum 25-hydroxyvitamin D level and risk of upper respiratory tract infection in children and ado-lescents显示文摘 | Science M Maguire JL Russell ML | 2013 | Clin Infect Dis2013，57，3： | 1 |
| 16 | INFLUENCE OF PRECIPITATES ON THE TWO WAY SHAPEMEMORY EFFECT显示文摘In this paper by means of TEM and HREM, we found that the presence of r-phase plays the most important role in enabling two way shape memory effect (TWME) to be obtained by the stabilization of stress induced martensite variants (SSIM). This idea is different from the traditional suggestion that strain fields developed by dislocation produced TWME. With prolonged isothermal ageing time, the bainitic tronsforma-tion product α1 precipitated, the amount of γ-phase increased, while the martensite was retained and became less ondered. These factors all reduced TWME. During age-ing, the stacking faults in bainitic product α1 disappeared, which indicated that the bainitic product α1 is a sub-equilibrium phase. The interfaces of α-plates also lost straightness step by step, some plates twisted, bronched and overlapped. Its formation is irreversible in tnorphology and reduces the quantities of martensite. Although the precipitation of r may stabilize some martensite or oppose its growth,α may hinder nucleation of martensite. Thus, it was considered that α-plates were the worst de- stroyed element. These suggestions agreed well with our performance test results in that the transformation temperntures and the amount of TWME changed in the same way with prolonged ageing, firstly increasing and then decreasing after reaching an optimal maximum value. | M Liu XM Zhang M.Z. Liu X.M. Mengand Y Y Li(Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China)(Metal Material Department, Sichuan Union University, Chengdu 610065, China) | 1997 | Acta Metallurgica Sinica(English Letters)1997，10，3： | 1 |
| 17 | P53 mutations in human cancers显示文摘 | Hollstein M Science D Vogelstein B | 1991 | Science1991，253，5015： | 1 |
| 18 | Interaction of organic phosphorus With clays extracted from oxisols 显示文摘 | Iexaphosphate with aluminum and Interface Science 2006 Giaveno C Celi L Cessa R M A | 2008 | Soll Science2008，173，10： | 1 |
| 19 | A novel approach to control thermal degradation of PET/organoclay nanocomposites and improve clay exfoliation 显示文摘 | recycled poly ( ethylene tereph Polymer Engineering & Science Ghanbaria A Heuzeya M C Carreau P J | 2013 | Polymer2013，54，4： | 1 |
| 20 | A large hemi-sphere terrestrial C02 sink indi- 12 C/13 C ratio of atmospheric CO2显示文摘 | Ciais P northern cared by Science Tans P P Troller M | 1995 | 269: 1098-11021995，269，： | 1 |
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