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| 1 | A NEW REGULARITY CLASS FOR THE NAVIER-STOKES EQUATIONS IN IR^n显示文摘ANEWREGULARITYCLASSFORTHENAVIER-STOKESEQUATIONSINIR~n￥H.BEIRaODAVEIGA(DepotmentofMathematics,PisaUniversity,Pisa,Italy)Abstra?.. | H. BEIRaO DA VEIGA (Department of Mathematics, Pisa University, Pisa, Italy) | 1995 | Chinese Annals of Mathematics,Series B1995，16，4： | 38 |
| 2 | 铝、镁轻合金中的稀土显示文摘综述了稀土镁和稀土铝合金的晶体化学、热力学和相图数据,根据其应用前景特别注意了富镁、富铝稀土合金及添加稀土对合金性能的影响,报道了若干稀土镁、稀土铝及含两个不同稀土的镁、铝合金的研究结果。对富镁、富铝的二元和三元合金相的结晶化学及形成规律进行了总结和讨论,并对有确定结构的合金精细设计和可能的应用提出了建议。 | Ferro R, Saccone A, Borzone G( Division of General and Inorganic Chemistry and Metallurgy Department of Chemistry, University of Genova, Dodecaneso 31,I 16146 Genova, Italy ) | 1997 | 中国稀土学报1997，15，3： | 36 |
| 3 | OXIDATION OF A TWO-PHASE Cu-75Cr ALLOY IN AIRAT 700-900℃显示文摘The cormsion in air of a two-phase Cu-75Cr alloy was studied at 700-900℃. Thealloy cormded nearly parabolically at 700-800℃, but at 900℃ its instantaneousparabolic mte constant decreased with time. The scales were complex and consistedof an outermost layer of copper oxide generally followed bg a layer of the double ox-ide Cu2 Cr2 O4 sometimes containing particles of unoxidized chromium surmunded bya chromia layer. An innermost layer of chromia was also observed in some cases.Finally metallic copper was al8o frequently mixed with chromia particles. No Cr de-pletion was observed in the alloy close to the inteffoce with the scale. In any case,this alloy was not able to form an exclusive continuous protective chromia layer. Thespecial cormsion behavior Of this alloy is typical of two-phase binary systems with alange solubility gaP in which the outwaof dthesion fiux of the most-reactive componentin the alloy is strongly reduced and may be inswncient to fOrm a protective externallayer of the cormsponding oxide. In paTticular, the presence of particles of Cr withina double oxide layer is very unusual and is allowed only for the kinetic reason. | F. Gesmundo Y Niu F. Vianiand D.L. Douglass(Universita di Genova, Fiera del Mare, Pad. D,16129 Genova, Italy)(State Key Lab. for Corrosion and Protection, Institute of Corrosion and Protection of Metals, theChinese Academy of Sciences, Shenyang 110015, Ch | 1997 | Acta Metallurgica Sinica(English Letters)1997，10，4： | 21 |
| 4 | Comparison of Wirsung-jejunal duct-tomucosa and dunking technique for pancreatojejunostomy after pancreatoduodenectomy显示文摘Pancreato-enteric reconstruction after pancreatoduodenectomy (PD) is still a source of debate because of the high incidence of complications. Among the various types of pancreato-jejunostomies we don’t know yet which is the best in terms of anastomotic failure and related complications rates. Wirsung-jejunal duct-to-mucosa anastomosis (WJ) and 'dunking' pancreato-jejunal anastomosis (DPJ) are the two most used ones worldwide but conflicting results are reported. To determine which is the safer anastomosis and to define when an anastomosis should be preferred, we retrospectively reviewed two groups of patients who underwent WJ or DPJ. METHODS:Twenty-three patients underwent PD with WJ (n=17) with dilated (WJD) (n=9) or not-dilated Wirsung’s duct (WJND) (n=8) or with a DPJ (n=6) over a 3-year period at a single institution. RESULTS: The complications rate was high in all groups of patients (33.3% in WJD, 37.5% in WJND and 66.7% in DPJ). A pancreatic fistula developed in one patient in each group (11. 1% in WJD, 12. 5% in WJND and 16. 7% in DPJ). All these patients were managed conservatively. Anastomotic disruption took place in the WJ patients especially in the WJND group (n=2) compared to the WJD (n=1) (25% vs 11.1%) or DPJ groups (0%) : these three patients required a re-operation. Overall, the anastomotic defects were higher in patients who underwent WJND (37.5%), compared to WJD (22.2%) and to DPJ (16.7%). However, no statistical differences were found among the groups. Delayed gastric emptying (DGE) and total parenteral nutrition (TPN) along with anastomotic defects were responsible for a prolonged hospital stay. CONCLUSIONS:Our results were not able to demonstrate any statistical difference between the two different techniques in preventing anastomotic failure. WJ can represent a valid choice in case of a dilated duct and a firm, fibrotic enlarged gland that could not be properly invaginated in a small jejunal loop. DGE may occur in those patients who experienced an anastomotic failure and required a TPN regimen with a prolonged hospital stay. | Unita di Chirurgia, Dipartimento di Fisiopatologia Clinica (Batignani G, Fratini G, Zuckermann M and Tonelli F) and Dipartimento di Statistica (Bianchini E), Universitd degli Studi di Firenze, Flo rence, Italy | 2005 | Hepatobiliary & Pancreatic Diseases International2005，4，3： | 9 |
| 5 | Detection of Allelic Variation in Chinese Wheat (Triticum aestivum L.) Germplasm with Drought ToleranceUsing SSR Markers显示文摘Allelic variation in two domestic wheat landraces, Pingyaobaimai and Mazhamai, two cornerstone breeding materials and their derived cultivars with drought tolerance was detected by SSR (simple sequence repeat) markers. The clustering of 25 accessions showed that the similarity between Pingyaobaimai and Yanda1817, the latter was developed from the former, was 0.71, the highest one of all accessions, but the similarities were very low between these two accessions and other accessions including their derived cultivars. A similar situation was revealed between Mazhamai and its derived cultivars. Pingyaobaimai and its three derived cultivars shared three alleles at loci Xgwm526, Xgwm538 and Xgwm126 on chromosome arms 2BL, 4BL and 5AL, respectively. There were six shared alleles in Mazhamai and its derived cultivars, in order of Xgwm157,Xgwm126, Xgwm212, Xgwm626, Xgwm471 and Xgwm44 on chromosome arms 2DL, 5AL, 5DL, 6BL, 7AS and 7DC, respectively. Only one shared allele was detected between the pedigrees of Pingyaobaimai and Mazhamai. The difference of shared alleles in two cornerstone breeding materials and their derived cultivars revealed the diversity in Chinese wheat germplasm with drought tolerance and the complication in genetic basis of drought tolerance in wheat. | JING Rui-lian, CHANG Xiao-ping, Marcello Broggio and JIA Ji-zeng(Key Laboratory of Crop Germplasm and Biotechnology , Institute of Crop Germplasm Resources , Chinese Academy of Agricultural Sciences, Beijing 100081 , P. R. China Oversea Agronomic Institute, Florence 50131 , Italy) | 2002 | Agricultural Sciences in China2002，1，10： | 7 |
| 6 | Quantum phase transition and entanglement in Li atom system显示文摘By use of the exact diagonalization method, the quantum phase transition and en- tanglement in a 6-Li atom system are studied. It is found that entanglement appears before the quantum phase transition and disappears after it in this exactly solvable quantum system. The present results show that the von Neumann entropy, as a measure of entanglement, may reveal the quantum phase transition in this model. | SI LiMing1 & HOU JiXuan2 1 Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China 2 Laboratoire de Chimie, UMR 5182 CNRS, Ecole Normale Supérieure de Lyon, 46, Allée d’Italie, F-69364 Lyon Cedex 07, France | 2008 | Science China(Physics,Mechanics & Astronomy)2008，51，11： | 6 |
| 7 | Dual Gabriel theorem with applications显示文摘We introduce the quiver of a bicomodule over a cosemisimple coalgebra. Applying this to the coradical C0 of an arbitrary coalgebra C, we give an alternative definition of the Gabriel quiver of C, and then show that it coincides with the known Ext quiver of C and the link quiver of C. The dual Gabriel theorem for a coalgebra with a separable coradical is obtained, which generalizes the corresponding result for a pointed coalgebra. We also give a new description of C1 = C0 ∧X C0 of any coalgebra C, which can be regarded as a generalization of the first part of the well-known Taft-Wilson Theorem for pointed coalgebras. As applications, we give a characterization of locally finite coalgebras via their Gabriel quivers, and a property of the Gabriel quiver of a quasi-coFrobenius coalgebra. | CHEN Xiaowu, HUANG Hualin & ZHANG Pu Department of Mathematics, University of Science and Technology of China, Hefei 230026, China USTC Shanghai Institute for Advanced Studies, Shanghai 201315, China Mathematical Section, the Abdus Salam ICTP, Strada Costiera 11, Trieste 34014, Italy Department of Mathematics, Shanghai Jiao Tong University, Shanghai 200030, China | 2006 | Science China Mathematics2006，49，1： | 6 |
| 8 | Normal scalar curvature and a pinching theorem in S^m×R and H^m×R显示文摘We obtain an inequality in Sm×R and Hm×R which is similar to DDVV conjecture.As an application,we show that a minimal submanifold in H m×R with nonnegative scalar curvature must be a surface of the type γ×R,where γ is a geodesic in H m.In addition,we get a pinching theorem in Sm×R. | CHEN Qun 1,2 & CUI Qing 3,1,1 School of Mathematics and Statistics,Wuhan University,Wuhan 430079,China 2 International Center for Theoretical Physics,Trieste 34100,Italy 3 School of Mathematics,Southwest Jiaotong University,Chengdu 610031,China | 2011 | Science China Mathematics2011，54，9： | 6 |
| 9 | Evolution of Microstructure and Mechanical Property during Long-Term Aging in Udimet 720Li显示文摘Thermal stabilities of microstructure and mechanical property have been investigated on super- alloy U72OLi, which is of great interest of application for jet engine and land-based turbine disc. The results showed that, the primary and secondary γ’?particles maintain good thermal stability at 650 and 7000C with aging time up to 3000 h, while the tertiary γ’?is apparently dependent on aging temperature and time. The tertiary γ’?particles undergo a procedure of coarsening, dissolution and eventually complete disappearance with the increasing of aging time and temper- ature. They exhibit unusual high sensibility upon aging temperature, which is attributed to the lattice misfit between the γ’?precipitates and the matrix in the alloy. The grain boundary phase M23C6 remains stable without forming of sigma phase even with aging time up to 3000 h at 700℃. Microhardness decreases apparently with increasing aging time and aging temperature. Theoretical analysis based on dislocation mechanism indicates that the change of microhardness should be attributed to the evolution of the tertiary γ’?during aging. | Lanzhang ZHOU and Valentino LUPINC CNR-TeMPE, Via R. Cozzi 53, 20125 Milano, Italy Jianting GUO Institute of Metal Research, CAS, 72 Wenhua Road, Shenyang 110016, China | 2001 | Journal of Materials Science & Technology2001，17，6： | 6 |
| 10 | A Discussion on the Introduction of Entropy into Economics | JIANG Lu(Beijing Normal University, China, and University of Trento, Italy) | 1994 | Systems Science and Systems Engineering1994，4，2： | 5 |
| 11 | Rare Earth Metals in Light Alloys显示文摘RareEarthMetalsinLightAloysFeroR,SacconeA,BorzoneG(DivisionofGeneralandInorganicChemistryandMetalurgy,DepartmentofChemistry,U... | ( Division of General and Inorganic Chemistry and Metallurgy, Department of Chemistry, University of Genova, I 16146 Genova, Italy ) | 1997 | Journal of Rare Earths1997，15，1： | 4 |
| 12 | Geomorphosites: Concepts,methods and examples of geomorphological survey显示文摘Some fundamental concepts on geosites and particularly on geomorphological assets (geomorphosites) are reviewed and a methodology for their survey and assessment is presented and pointed out. Also, a case study in the province of Modena is presented. | Mario PanizzaDipartimento di Scienze della Terra, Universita degli Studi di Modena e Reggio Emilia, Largo S. Eufemia 19-41100, Modena, Italy (e-mail: pit?unimo.it) | 2001 | Chinese Science Bulletin2001，46，S1： | 4 |
| 13 | 结晶碳酸钙——一个系统的投资理念显示文摘结晶碳酸钙(PCC)是石灰工业的高附加值的产品,它作为填料被应用于多种行业。生产结晶碳酸钙是石灰工业的最佳选择,因为生产PCC的主要原料都能在石灰厂找到。但是如何确定你的投资能否有回报呢?西姆公司介绍了一个安全、有效的方法。对当地市场进行调查,在实验室进行试验,再在实验室工艺的基础上进行放大。 | M.GORI Bergamo/Italy | 2000 | 无机盐工业2000，32，6： | 3 |
| 14 | In vitro Effect of Dithiocarbamate Pesticides and of CaNa_2EDTA on Human Serum Dopamine-β-hydroxylase显示文摘Serum dopamine-β-hydroxylase (DBH) inhibition has been reported in lead workers treated with CaNa2EDTA and in alcoholic patients repeatedly treated with the alcohol aversive drug Disulfiram. The mechanism of inhibition involves Cu-chelation at the active site of DBH. The effect of CaNa2EDTA and Disulfiram on serum DBH has been compared to the effect of dithiocarbamate pesticides in vitro for the possible use of serum DBH determination for the biological monitoring of workers exposed to these pesticides.Most dithiocarbamates inhibit human serum DBH at micromoIar concentrations (range of I50, 0.027-1.6 μmol/L). The inhibitory potency increased from methyl- and dimethyl dithiocarbamates to diethyl dithiocarbamates up to the most potent ethylene bisdithiocarbamates. The I50 of CaNa.EDTA was 3.8 mol/L, higher than those of dithiocarbamates. Copper addition to the test system rcactivated at stoichiometric concentrations dithiocarbamaie-inhibited DBH indicating that both base line values and percent of inhibition can be calculated in a single blood sample. Results suggest that serum DBH determination couId be useful in case of acute poisoning involving high doses of dithiocarbamate | PAOLA DE PARIS AND STEFANO CAROLDI(Istituto di Medicina del Lavoro, Universita’ di Padova, Padova, Italy)(Send correspondence to: Dr. Stefano Caroldi. Istituto di Medicina del Lavoro, Via Facciolati 71,I-35127, Padova, Italy. Tel: 3949-8216652, Fax: 3949- | 1995 | Biomedical and Environmental Sciences1995，8，2： | 3 |
| 15 | Soil Properties as Influenced by Incorporation of Crop Residues | A. SCAGNOZZI, R. LEVI-MINZI, A. SAVIOZZI and R. RIFFALDIInstttute of Agricultural Chemistry, University of Pisa, Via S. Michele degli Scalzi 2, 56124 Pisa (Italy) | 1994 | Pedosphere1994，4，3： | 3 |
| 16 | HOT DIPPING ALUMINIZED COATING AS HYDROGEN PERMEATION BARRIER显示文摘The hydrogen permeation experiment of MA NET II with hot dipping aluminized coating was performed in temperature range of 573 to 623K, in gas phase and in liquid Pb-17Li phase. The hydrogen permeation reduction factor (PRP) evaluated in gas phase is 620 at 573K and 260 at 623K, and in liquid Pb-17Li phase is 24-45 at 573K and P2-30 at 623K. The self-healing of coating is obvious and effective above 673K. The pressure dependence of permeation flux indicates strong surface contribution. The way of filling hydrogen by continuous flow and/or bubble can increase permeation flux. The result of SEM-EDS shows that the microcrack is on the surface of the wetted part, but not on the not wetted part. The crack is superficial and affects only thin outside layer not penetrate aluminized layer. The surface elemental analysis shows that Al/O atomic ratio changes from 2/3 of not wetted part to about 1 of wetted part. The damage of coating surface seems to be related to the interaction of outside layer with liquid Pb-17Li and thermal stress during heating sample. | Z. Y Yao, M. Chini, A. Aiello and G. Benamati (China Institute of Atomic Energy, P.O.Box 275-51, Beijing 1024l3, China) ( Department of Physics, University of Trento, 38100 Trento, Italy) ( ENEA CR Brasimone, 40032 Camugnano, Bologna, Italy) | 2001 | Acta Metallurgica Sinica(English Letters)2001，14，6： | 2 |
| 17 | Some Remarks on the Symmetry of Self-Conjugate Minimal Surfaces in R^3 | Chen Weihuan M.S.Rahman Chen Weihuan International Centre for Theoretical Physics Trieste,Italy and Department of Mathematics Peking University Beijing,100871 ChinaRahman,M.S.International Centre for Theoretical Physics Trieste,Italy and Department of Maihematics Jahangirnagar University Dhaha,1342 Bangladesh | 1996 | Acta Mathematica Sinica,English Series1996，12，2： | 2 |
| 18 | 多面的本杰明·富兰克林显示文摘他出身寒微,既没有从祖辈继承任何财富,也没有任何世袭的社会地位,却成为18世纪最有魅力的人士之一,不仅在北美殖民地摆脱英国而独立的斗争中发挥了关键作用,而且影响了当时的科学研究与发明、教育、政治思想和新闻业。他就是在暴风雨中放风筝的那个人——本杰明·富兰克林。很少有人像富兰克林那样多才多艺,涉足众多领域。作为美国的开国元勋,他自己就是一个美国梦的缩影——靠个人奋斗而取得成功。正因为他为美国做出的杰出贡献,后人以一种特殊的方式来永久纪念他:在100美元钞票上印上了他的头像。前苏联著名科学家卡皮察(1894~1984)曾经说:'研究了富兰克林的传记,能愈益清楚地认识到,为什么这位美国人民献给全人类的伟大人物能受到普遍的尊敬和钦佩。' | Hillel Italie 涂颀 | 2006 | 英语文摘2006，，3： | 2 |
| 19 | Channel Mismatching in Sidelobe Canceler: Limitations and Remedies显示文摘After a brief recall of the Sidelobe Canceler (SLC) working principle, including the derivation of a general formula for the Cancellation Ratio (CR), the effects of channel mismatching are investigated. In particular, curves providing CRvalues as a function of amplitude and phase channel mismatching, radar bandwidth, and jammer direction of arrival (JDOA) are provided for the cases of one and two auxiliary antennas. Subsequently, a time -space processor for performance restoration is analyzed in detail. In addition to the above mentioned quantities, the attainable CR value is expressed as a function of the space-time processor parameters. The contribution of the paper is related to the derivation of a number of mathematical equations of CR for several cases of practical interest for the radar engineer. In addition, several curves are presented to assist design of SLC systems. | A. Farina and A. ProtopapaRadar Dpt Selenia S. p. A., Via Tiburtina,Km. 12,400-00131 Rome, Italy | 1992 | Journal of Systems Engineering and Electronics1992，3，3： | 2 |
| 20 | Physical and Mathematical Errors in the Alleged Planck-Ether Theory. A Vindication of Max Planck显示文摘A radical attempt to develop the Planck ether theory has been made by Winterberg who, however, assumes positive and negative Planck masses in order to have a zero cosmological constant and to overcome the divergence problems of quantum electrodynamics. Now, it is evident that two opposite Planckions,interact- ing with each other have parallel accelerations, thus going on accelerating each other up to infinite energy. We also show that a negative inertia leads to self-acceleration of a simple particle because of the fields present in any interaction, even those relative to ' contact' actions which are unable to produce Winterberg’s vortex rings without the use of long range forces. The appearance of the electric field in the Planckion model is unjustified and in contradiction with MacCullagh’s condition used by Winterberg, We suggest a possible solution. Other difficulties regard the nonannihilation of the positive and negative Planckions, although they are antiparticles to each other, and the justification of the elementary particle masses which are small submultiples of the Planck masses. Finally, Winterberg thinks of having derived special relativity from prerelativistic physics by demanding invariance of the Lorentz condition under both Galilei and Lorentz transformations, which is impossible. What is worse is that Wintorberg does not refer to the same space-time events in writing his transforma- tions. Suggestions to improve Winterberg’s theory are given. | G. Cavalleri and E. Tonni (UniversitáCattolica del Sacro Cuore,v. Trieste 17, 25121 Brescia, Italy) | 1995 | Journal of Systems Engineering and Electronics1995，6，4： | 2 |
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