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A COLUMN rECUrrENCE ALGOrITHM FOr SOLVING LINEAr LEAST SQUArES PrOBLEM

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Journal of Computational Mathematics 1996年第4期14卷 301-310页

作者： J.X. Zhao(department of Mathematics, nanjing univ.r.ity, {2. china) nanjing univ DEPT MATHNANJING 210008PEOPLES R CHINA

A new column recurrence algorithm based on the classical Greville method and modified Huang update is proposed for computing generalized inverse matrix and least squares solution. The numerical results have shown the ... 详细信息

关键词： Math A COLUMN rECUrrENCE ALGOrITHM FOr SOLVING LINEAr LEAST SQUArES PrOBLEM ABS

The P_2._5 content of feldspars from the Yashan granites,Jiangxi Province, South china

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Chinese Science Bulletin 1999年第13期44卷 1245-1248页

作者： HUANG Xiaolong, WANG rucheng , LIU Changshi, YIN Lin, CHEN Xiaoming and CHEN PeirongState Key Laboratory of Mineral Deposit research , department of earth {2. , nanjing univ.r.ity, nanjing 210093 , china Corresponding author State Key Laboratory of Mineral Depit research Department of Earth Scienc Nanjing University Nanjing China

The P2.5 contents of feldspars in the Yashan F-rich and P-rich granite yield a maximum value of 0.93% （in albite） and a maximum average value of 0.65% （hereinafter weight percent）（in K-feldspar）, and is general... 详细信息

The P2./sub>O5 contents of feldspars in the Yashan F-rich and P-rich granite yield a maximum value of 0.93% （in albite） and a maximum average value of 0.65% （hereinafter weight percent）（in K-feldspar）, and is generally between 0.10% and 0.35%. Most of the distribution coefficient Dp[Ab/Kf] values are greater than 1 （1.13—2..9）. The study shows that phosphorus could preferably enter the albite structure mainly by PAISi2./sub> substitution relative to K-feldspar.

关键词： phosphorus content feldspars PAISi2 substitution.

FErrOMAGNETIC rESONANCE STUDIES OF Co/CoFe_2._4 MULTILAYErS

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Acta Metallurgica Sinica(English Letters) 1999年第2期12卷 181-184页

作者： B.X. Gu(department of Physics, nanjing univ.r.ity,{2., china)H. Wang(department of Physics, Southeastern univ.r.ity, nanjing 2.0008, china)Manuscript receivedin revised form 12.October 1998) nanjing univ Nanjing China

The Co/CoFe2.4 multilayers have been grown on the glass substrate using sputtering techniques. In these films the Co layers were measured to have the fcc structure with [11] axis perpendicular to the film plane, and the CoFe2.4 layers are amorphous. Ferromagnetic resonance measurements have been made as a function of the external magnetic field orientation in a plane perpendicular to the film. The effective magnetization, effective anisotropy constant and interface anisotropy constant have been determined. The influence of Co layers thickness on magnetic properties was discussed.

关键词： Co/CoFe_2._4 multilayer ferromagnetic resonance magnetic property

Grains Containing Oil Inclusions in Different Hydrocarbon Production and Show Types of Sandstone reservoirs from the Central Junggar Basin,Northwest china

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Acta Geologica Sinica(English Edition) 2011年第5期85卷 1163-1172页

作者： CAO Jian~1,WANG Xulong~2.SUN Ping’an~1,SHI Xinpu~2.HU Wenxuan~1,YAO Suping~1, ZHANG Yueqian~2.TANG Yong~2.and XIE Xiaomin~1 1 State Key Laboratory for Mineral Deposits research,department of earth {2.,nanjing univ.r.ity, nanjing,Jiangsu 210093,china 2.Petrochina Xinjiang Oilfield Company,Karamay,Xinjiang 834000,china State Key Laboratory for Mineral Deposits research Department of Earth Sciences Nanjing University Nanjing Jiangsu 210093 China Petrochina Xinjiang Oilfield Company Karamay Xinjiang 834000 China *Correspondence: Corresponding author. E-mail: jcao@***

The values of grains containing oil inclusions(GOI) in 12. reservoir sandstone samples from the central Junggar Basin of Northwest china were *** sandstones are characterized by different types of hydrocarbon production and *** values range from 0.015%to 19.9%,and show a fairly good correlation with the hydrocarbon production/shows,which are qualitatively suggestive of reservoir hydrocarbon abundance and petroleum ***,it may be implied that the values can reflect hydrocarbon migration,being not controlled mainly by the other influencing *** correlation between the values and the reservoir hydrocarbon production and show types indicates that the GOI method can be used in hydrocarbon migration study when the petroleum type of a reservoir is normal oil or gas alone,but it should be used with caution when light oil charges the reservoirs or a complex hydrocarbon migration event takes *** case study in the central Junggar Basin using the method presents some new understanding on hydrocarbon ***, the method may help to solve specific petroleum geological problems,and can be treated as a routine tool in hydrocarbon migration study.

关键词： grains containing oil inclusions(GOI) petroleum inclusion hydrocarbon migration reservoir geochemistry the central Junggar Basin

A MODIFIED PrOJECTION AND CONTrACTION METHOD FOr A CLASS OF LINEAr COMPLEMENTArity PrOBLEMS

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Journal of Computational Mathematics 1996年第1期14卷 54-63页

作者： B.S. He(department of Mathematics, nanjing univ.r.ity, {2., china) nanjing univ DEPT MATHNANJING 210008PEOPLES R CHINA

recently, we have proposed an iterative projection and contraction (PC) method for a class of linear complementarity problems (LCP)([4]). The method was showed to be globally convergent, but no statement could be made about the rate of convergence. In this paper, we develop a modified globally linearly convergent PC method for linear complementarity problems. Both the method and the convergence proofs are very simple. The method can also be used to solve some linear variational inequalities. Several computational experiments are presented to indicate that the method is surprising good for solving some known difficult problems.

关键词： Th Pn A MODIFIED PrOJECTION AND CONTrACTION METHOD FOr A CLASS OF LINEAr COMPLEMENTArity PrOBLEMS II

Influence of interannual variability of Antarctic oscillation on mei-yu along the Yangtze and Huaihe river valley and its importance to prediction

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Chinese Science Bulletin 2003年第S2期48卷 61-67页

作者： GAO Hui~(1,2., XUE Feng~1 WANG Huijun~1 1. Institute of Atmospheric Physics, Chinese Academy of sciences, Beijing 10002., china 2. {2. of Atmospheric sciences, nanjing Institute of Meteorology, nanjing 2.0044. china Chinese Acad Sci Inst Atmospher Phys Beijing 100029 Peoples R China nanjing Inst Meteorol Dept Atmospher Sci Nanjing 210044 Peoples R China

Both correlation analysis and case study indi-cate that Antarctic oscillation (AAO) is closely related withsummer rainfall in eastern china. When AAO is stronger inboreal spring, especially in May, there is more mei-yu rain-fall in summer with a longer period along the Yangtze andHuaihe river valley. In contrast, there is less rainfall with ashorter period corresponding to a weaker AAO. Besides, ananomalous AAO changes the position and intensity of severalcirculation systems, which are important to summer rainfallalong the Yangtze and Huaihe river valley. Furthermore, theAntarctic sea ice is negatively correlated with the intensity ofAAO with a 6-month leading time. The result in this studyprovides a new method for the prediction of mei-yu.

关键词： Antarctic oscillation interannual variability mei-yu Antarctic sea ice.

Normal Functions and α-Normal Functions

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Acta Mathematica Sinica,English Series 2000年第3期16卷 399-404页

作者： Yan Xu department of Mathematics,nanjing Normal {2.,nanjing 2.0097 P.r.china department of Mathematics Nanjing Normal University Nanjing 210097 P. R. China

This paper has studied two open questions about normal functions due to Lappan,and obtained two corresponding results for α-normal functions.

关键词： Spherical derivative Normal function α-Normal function

Oxygen isotope geochemistry of phosphorite and dolomite and palaeo-ocean temperature estimation:A case study from the Neoproterozoic Doushantuo Formation, Guizhou Province, South china

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Progress in Natural Science:Materials International 2004年第1期14卷 78-85页

作者： LING Hongfei, JIANG Shaoyong*, FENG Hongzhen, CHEN Yongquan, CHEN Jianhua and YANG Jinghong(State Key Laboratory for Mineral Deposits research, department of earth {2., nanjing univ.r.ity, nanjing 210093, china) nanjing univ Dept Earth Sci State Key Lab Mineral Deposits Res Nanjing 210093 Peoples R China

The Neoproterozoic Doushantuo Formation at Weng’an in Guizhou Province of South china consists of phosphorites and dolomites. Three types of samples are recongnized for the phosphate bearing rocks. In Type I samples, interstitial phosphates occur within the dolomite rocks, whereas in Type III samples, interstitial dolomites occur within the phosphorites; both of them may have diagenetic origin. The Type II samples are interbedded phosphorites and dolomites. Oxygen isotopic compositions of phosphate and coeval carbonate were analyzed. Phosphates of Type I and II samples show similar low δ 18 O phos (SMOW) values of 10.9‰～12.1‰ and 10.7‰～ 12.8‰ , respectively, whereas Type III phosphates show higher δ 18 O phos (SMOW) values of 13.2.～15.0‰. Dolomites from Type I and II samples have δ 18 O carb (PDB) and δ 13 C carb (PDB) values of -6.2.～-3.4‰ and -2.2.～-0.7‰, respectively, whereas interstitial dolomites from Type III samples show lower δ 18 O carb (PDB) and δ 13 C carb (PDB) values of -12.9‰～-8.6‰ and -4.4‰～-2.6‰. Petrology and oxygen isotope data suggest that diagenetic alteration may have partially affected the studied rocks, but the dolomites from Type I and phosphates from Type III samples represent the most pristine isotopic compositions of primary carbonates and phosphates precipitated from seawater. Calculations of palaeocean temperatures from the most 18 O enriched dolomite and phosphate indicate a temperature range of 32.2.℃ to 34.0 ℃ for the seawater of the Doushantuo Formation period. Ce anomaly also suggests more oxic conditions and possibly shallower water depth in the upper strata of the Doushantuo Formation at Weng’an, Guizhou Province.

关键词： oxygen isotopes phosphate dolomite Doushantuo Formation Neoproterozoic South china

STUDY ON UrBAN LAND SAVING IN THE ECONOMICDEVELOPED COASTAL rEGION OF china

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Chinese Geographical Science 2001年第1期11卷 11-16页

作者： SHEN Jian-rong, CHEN Shuang, YAO Shi-mou (department of Urban and resources Science, nanjing univ.r.ity,{2., P. r. china nanjing Institute of Geography and Limnology, the Chinese Academy of sciences, nanjing 2.0008, P. K china) department of Urban and resources Science Nanjing University Nanjing P. R. China nanjing Institute of Geography and Limnology the Chinese Academy of Sciences Nanjing P. R. China

In the initial period of industrialization a great deal of land is needed for Chinese industry development as well as land resource per person of china is much lower than the average value in the world, thus it is necessary to save land in Chinese urban constrUction. This paper mainly discussed the features of urban land use in economic developed coastal cities: one is that the index of urban land per person in middle-small cities was higher than in large cities; another is that urban land has not been used highly and strongly; the third is that the industrial land occupied an irrationally large percentage of whole urban land; the final is that rural enterprises took up a quantity of land. Thereafter, this paper put forward five land-saving measures: first, to adopt the idea of saving land; next, to adjust the land-use structure when redeveloping the old city and alternate some land use when adjusting the industry structure of the city; the third, to develop the system of payment for using land and the management of urban planning; finally to enhance the effective regional plan and the urban landuse plan.

关键词： cities land saving measures the coastal region of china