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Surface configurations during annealing of sputter-deposited NiTi thin films

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Chinese science Bulletin 1997年第23期42卷 2019-2020页

作者： GONG Fengfei, JIANG Enyong, SHEN Huimin and WANG Yening1. department of Applied Physics, Tianjin university, Tianjin 3.0072 The National Laboratory of Solid State Microstructures, nanjing university, {3. 210008 Center for Advanced Studies in science and Technology of Microstructures, nanjing 2.0093. china 2. department of Physics, Tianjin university, Tianjin 3.0072, china 3. National Laboratory of Solid State Microstructures, nanjing university, {3. 210008, Center for Advanced Studies in science and Technology of Microstructures, nanjing 2.0093. china. department of Applied Physics Tianjin University Tianjin The National Laboratory of Solid State Microstructures Nanjing University Nanjing Center for Advanced Studies in science and Technology of Microstructures Nanjing China department of Physics Tianjin University Tianjin China National Laboratory of Solid State Microstructures Nanjing University Nanjing

SPUTTER-DEPOSITED NiTi thin films are becoming more and more important because of their po-tential applications to the intelligent thin-film systems. The as-deposited NiTi thin films pre-pared by magnetron sputtering are generally amorphous. Because the amorphous NiTi thinfilms cannot show shape memory effect, they should be crystallized under appropriate anneal-

关键词： NiTi Surface configurations during annealing of sputter-deposited NiTi thin films

Predicting the Maintainability of Open Source Software Using Design Metrics

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Wuhan university Journal of Natural sciences 2008年第1期13卷 14-20页

作者： ZHOU Yuming1,2, XU Baowen1,3.1. School of Computer science and engineering, Southeast university, {3. 210096, Jiangsu,china 2. department of Computing, Hong Kong Polytechnic university, Hong Kong, china 3. Jiangsu Institute of Software Quality, {3. 210096, Jiangsu,china School of Computer science and engineering Southeast University Nanjing China department of Computing Hong Kong Polytechnic University Hong Kong China Jiangsu Institute of Software Quality Nanjing China

This paper empirically investigates the relationships between 15 design metrics and maintainability of 148 Java open source software. The results show that size and complexity metrics are strongly related to the maintainability of open source software. However, cohesion and coupling, as currently captured by existing metrics, do not seem to have a significant impact on maintainability. When used together, these metrics can predict system maintainability fairly accurately （mean MREs below 3.%）.

关键词： open source: object-oriented maintainability metric prediction regression

Massive Si Phase and Its Growth Mechanism in Al-Si Casting Alloy

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Journal of Materials science & Technology 2004年第5期20卷 589-591页

作者： Hengcheng LIAO and Guoxiong SUNDepaxtment of Materials science and engineering, Southeast university, {3. 210018, china Dept. of Mat. Sci. and Eng. Southeast Univ. Nanjing 210018 China

Optical microscope and scanning electron microscope were used to observe the microstructure of the AI-11.6%Si and AI-11.6%Si-0.4%Mg alloys and the morphology of the massive silicon particles. It is found that the massive silicon phase, observed in the unfully modified alloys with 0.010%Sr, disappears completely in the alloys fully modified with 0.020%Sr. The serrations and reentrant edges shown in the massive silicon particles with the conventional casting indicate that the TPRE mechanism plays an important role in the growth of the massive silicon phase. The ripples and steps suggest that the "lateral microscopic growth" may be another operating mechanism.

关键词： Al-Si alloy Massive silicon Microstructure Growth mechanism

11 beta-hydroxysteroid dehydrogenase type 1 promotes differentiation of 3.3.L1 preadipocyte

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Acta Pharmacologica Sinica 2007年第8期28卷 1198-1204页

作者： Yun LIU~(2,3.4) Yan SUN~(2,4) Ting ZHU~2 Yu XIE~2 Jing YU~2 Wen-lan SUN~2 Guo-xian DING~(2,5) Gang HU~(3.5) ~2department of Geratology the First Affiliated Hospital,nanjing Medical university,nanjing 210008,china ~3.0} of Pharmacology,nanjing Medical university,nanjing 210029,china department of Geratology the First Affiliated Hospital Nanjing Medical University Nanjing China department of Pharmacology Nanjing Medical University Nanjing China

Aim:To investigate the relationship between 11 beta-hydroxysteroid dehydroge-nase type 1(1 lbeta-HSD1),a potential link between obesity and type 2 diabetes,and preadipocyte ***:Mouse 1 lbeta-HSD 1 siRNA plasmidswere transfected into 3.3.L1 preadipocytes(a cell line derived from mouseSwiss3.3.cells that were isolated from mouse embryo),for examination of theeffect of targeted 11 beta-HSD 1 inhibition on differentiation of 3.3.L 1 ***-ferentiation was stimulated with 3.isobutyl-l-methyxanthine,insulin,*** transcription level of the genes was detected by ***:Lipid accumulation was significantly inhibited in cells transfectedwith mouse 1 lbeta-HSD1 siRNA compared with non-transfected 3.3.L1 *** lipid droplets were detected in the transfected cells both prior to stimulationand after stimulation with differentiation-inducing *** expression ofadipocyte differentiation-associated markers such as lipoprotein lipase and fattyacid synthetase were downregulated in the transfected ***,the expres-sion of preadipocyte factor-1,an inhibitor of adipocyte differentiation,wasdownregulated upon stimulation of differentiation and had no changes in thetransfected ***:11 beta-HSD1 can promote *** on this,we propose that 11 beta-HSD1 may be an importantcandidate mediator of obesity and obesity-induced insulin resistance.

关键词： 11 beta-hydroxysteroid dehydrogenase type 1 siRNA 3.3.L1 cell differentiation obesity

A whisker-like carbon composite for the immobilization of laccase and its bioelectrochemistry

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science china Chemistry 2010年第6期53卷 1332-1336页

作者： MA GuoXian1,2,ZHONG QingDong2 & LU TianHong3.1department of Chemical engineering,Shanghai Institute of Technology,Shanghai 20023.,china 2School of Materials {3. and engineering,Shanghai university,Shanghai 200072,china 3.0} of Chemistry,nanjing Normal university,nanjing 210097,china department of Chemical engineering Shanghai Institute of Technology Shanghai China School of Materials science and engineering Shanghai University Shanghai China department of Chemistry Nanjing Normal University Nanjing China

A novel mesoporous carbon/whisker-like carbon (MCWC) composite was used for the immobilization of laccase (Lac) and its bioelectrochemical behaviors were *** was confirmed by XPS that Lac was strongly adsorbed on the surface of the MCWC *** cyclic voltammetric results showed that the immobilized Lac underwent a direct quasi-reversible electrochemical *** value of the electron transfer rate constant ks was estimated to be 0.770 s-1,indicating a reasonably fast electron transfer between the immobilized Lac and the underlying *** surface concentration (I-) of Lac was estimated to be 2.73. × 10-12 mol/*** experimental results showed that the immobilized Lac displayed an appreciable electrocatalytic activity to the electrochemical reduction of *** properties could be attributed to the particular structure of loosely packed nanometer-scale carbon whiskers and the existence of a large amount of oxygen-containing *** immo- bilization method and the novel carrier (MCWC) may find new applications in fabricating the biocatalysts for biofuel cells.

关键词： laccase whisker-like carbon composite direct electrochemical reaction oxygen bioelectrochemistry

Regioselective aminohalogenation of β-nitrostyrenes using NCS and NBS as nitrogen/halogen sources

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science china Chemistry 2010年第1期53卷 140-146页

作者： ZHI SanJun1,2,SUN Hao2,LIN Chen2,ZHANG GuangQian2,LI GuiGen4 & PAN Yi2,3.1 department of Chemistry,Huaiyin Normal university,Huai’an 221003.china 2 School of Chemistry and Chemical {3.,nanjing university,nanjing 2.0093.china 3.State Key Lab of Coordination Chemistry,nanjing university,nanjing 2.0093.china 4 department of Chemistry and Biochemistry,Texas Tech university,Lubbock,Texas 79409-1061,USA department of Chemistry Huaiyin Normal University Huai’an China School of Chemistry and Chemical engineering Nanjing University Nanjing China department of Chemistry and Biochemistry Texas Tech University Lubbock USA State Key Lab of Coordination Chemistry Nanjing University Nanjing China

Aminohalogenation reaction of β-nitrostyrenes with N-halosuccinimides(N-chloro and N-bromosuccinimides) has been successfully conducted by using nickel acetate as a catalyst in the presence of potassium carbonate and succinimide as *** reaction was easily performed at room temperature under nitrogen gas protection to give dihalorinaed haloamino products in good to excellent yields(60%-98%).The structure has been confirmed by X-ray crystal structure analysis.

关键词： aminohalogenation vicinal haloamines β-nitrostyrenes NBS NCS

Heuristic for no-wait flow shops with makespan minimization based on total idle-time increments

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science in china(Series F) 2008年第7期51卷 896-909页

作者： LI XiaoPing1,2 & WU Cheng3.1 School of Computer science & engineering, Southeast university, {3. 210096, china 2 Key Laboratory of Computer Network and Information Integration (Southeast university), Ministry of Education, {3. 210096, china 3.department of Automation, Tsinghua university, Beijing 100084, china School of Computer science & engineering Southeast University Nanjing China Key Laboratory of Computer Network and Information Integration (Southeast university) Ministry of Education Nanjing China department of Automation Tsinghua University Beijing China

No-wait flow shops with makespan minimization are classified as NP-hard. In this paper, the optimization objective is equivalently transformed to total idle-time minimization. The independence relationship between tasks is analyzed, and objective increment properties are established for the fundamental operators of the heuristics. The quality of the new schedules generated during a heuristic is judged only by objective increments and not by the traditional method, which computes and compares the objective of a whole schedule. Based on objective increments, the time complexity of the heuristic can be decreased by one order. A seed phase is presented to generate an initial solution according to the transformed objective. Construction and improvement phases are introduced by experimental analysis. The FCH （fast composite heuristic） is proposed and compared with the most effective algorithms currently available for the considered problem. Experimental results show that the effectiveness of the FCH is similar to that of the best methods but requires far less computation time. The FCH can also be efficient in real time scheduling and rescheduling for no-wait flow shops.

关键词： no-wait flow shops heuristic makespan Tabu search

Magnetic mineralogy of the Hongqiling Cu-Ni sulphide deposit: Implications for ore genesis

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Progress in Natural science:Materials International 2007年第10期17卷 1192-1198页

作者： Xi Aihua1,2, Ge Yuhui1, Cai Yuanfeng2 and Zhang Xuefeng3.1. Faculty of Resources & Environment, Southwest Petroleum university, Chengdu 610500, china 2. State Key Laboratory for Endogenic Metal Deposit Research, nanjing university,{3. 3. department of Natural Resources & Technology Information, china university of Petroleum, Beijing 102249, china) Faculty of Resources and Environment Southwest Petroleum University Chengdu 610500 China State Key Laboratory for Endogenic Metal Deposit Research Nanjing University Nanjing 210093 China department of Natural Resources and Technology Information China University of Petroleum Beijing 102249 China

Pyrrhotite is one of the common ore minerals in Cu-Ni sulphide deposits, but only monoclinic pyrrhotite is ferromagnetic at room temperature. X-ray and EPA analyses reveal that most pyrrhotite forming sideronitic texture in the Hongqiling Cu-Ni sulphide deposit is monoclinic, but that in the massive ore is a mixture of monoclinic and hexagonal pyrrhotites. Differential thermal and magnetic- thermogravimetric analyses of massive ore indicate a magnetic transition and heat absorption at 3.3., suggesting that this temperature is the thermomagnetic and phase transition point of pyrrhotite. For massive pyrrhotite ores heated at 400oC for 3. h and then quenched by cool water, the monoclinic pyrrhotite (mpo) transforms completely into the hexagonal pyrrhotite (hpo). However, all the pyrrhotites resulting from slow cooling of the sample in air are mpo. These results indicate that transformation between hpo and mpo depends upon the cooling rate. Therefore, massive ores in this deposit might have been formed via rapid cooling of ore melts. On the other hand, it is significant to study the effect of the ratio of the magnetite in total ores on the genesis of magmatic Cu-Ni suphide deposits.

关键词： pyrrhotite magnetite genesis of Cu-Ni sulphide deposit Hongqiling.

Regular n-simplices in R^n with vertices in Z^(n)

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science china Mathematics 2004年第1期47卷 104-113页

作者： XIA Jianguo & QIN Hourongdepartment of Mathematics, nanjing Normal university, nanjing 210097, china (email: jgxia@***) department of Mathematics, nanjing university, nanjing 2.0093. china Dept. of Math. Nanjing Normal Univ. Nanjing 210097 China Dept. of Math. Nanjing Univ. Nanjing 210093 China

In this paper the Ⅰ and Ⅱ regular n-simplices are introduced. We prove that the sufficient and necessary conditions for existence of an Ⅰ regular n-simplex in Rn are that if n is even then n = 4m(m + 1), and if n is odd then n = 4m + 1 with that n + 1 can be expressed as a sum of two integral squares or n = 4m - 1, and that the sufficient and necessary condition for existence of a Ⅱ regular n-simplex in Rn is n = 2m2 - 1 or n = 4m(m+1)(m 6 N). The connection between regulars-simplex in Rn and combinational design is given.

关键词： regular n-simplex in Rn, quadratic form.