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| 1 | 2001~2010年体育改革与发展纲要显示文摘为实现我国的现代化建设目标 ,充分发挥体育在提高人民物质文化生活中的作用。国家体育总局经过充分调研 ,经过 1999年、2 0 0 0年全国体育工作会议修改 ,制定《2 0 0 1~ 2 0 10年体育改革与发展纲要》,纲要明确了 2 1世纪前10年我国体育的指导思想、基本战略和奋斗目标。提出 :10年内 ,大众体育普及程度明显提高 ,体育人口达总人口的40 %左右 ;竞技体育保持亚洲领先 ,夏季奥运会前列 ,实现冬季奥运会零的突破 ;体育产业初具规模等。《纲要》是我国体育今后 | The State Sport General Administration (December 15,2000) | 2001 | 体育科学2001,21,3: | 147 |
| 2 | CATHODIC PROCESS AND WEAR RESISTANCE OF ELECTRO-DEPOSITED RE-Ni-W-P-SiC COMPOSITE COATING显示文摘Cathodic deposition current density of the composite coatings increases when SiC par-ticles and rare earth (RE) were added in the bath, which is profitable for Ni- W-P alloyto deposit in the cathod, forming Ni-W-P-SiC and RE-Ni-W-P-SiC composite coat-ings. On the contrary, the addition of PTFE in the bath decreases cathodic depositioncurrent density of the coatings. The current density increases a little when the amountof RE is 7-9g/l; however, the current density increases greatly when the amount ofRE is increased to 11-13g/l. But if the amount of RE is raised further, the currentdensity decreases. Hardness and wear resistance of RE-Ni-W-P-SiC composite coat-ing have been studied, and the results show that the hardness and wear resistance ofRE-Ni-W-P-SiC composite coating increase with increasing heat treatment tempera-ture, which reach peak values at 400℃; while the hardness and wear resistance of thecoating decrease with the rise of heat treated temperature continuously. | Z.C.Guo,X.Y.Zhu,R.D.Xu and X.W.YangFaculty of Material and Metallurgy Engineering, Kunming University of Science and Technology, Kunming650093, ChinaManuscript received 26 December 2001 in revised form 23 April 2002 | 2002 | Acta Metallurgica Sinica(English Letters)2002,15,4: | 16 |
| 3 | Modeling and performance analysis of energy selective electron (ESE) engine with heat leakage and transmission probability显示文摘A model of an energy selective electron (ESE) engine with linear heat leakage and Lorentzian transmission probability is established in this paper.The expressions for the main performance parameters of the ESE engine operating as a heat engine or a refrigerator are derived by using the theory of finite time thermodynamics.The optimum performances of the ESE engine are explored and the influences of the heat leakage,the central energy level of the resonance,and the width of the resonance on the performance of the ESE engine are analyzed by using detailed numerical examples.The optimal operation regions of power output and efficiency (or cooling load and coefficient of performance (COP)) are also discussed.Moreover,the performances of the ESE engine with Lorentzian transmission probability are compared with those with rectangular transmission probability.It is shown that the power output versus efficiency (or cooling load versus COP) characteristic curves with and without heat leakage are all closed loop-shaped ones.The efficiency (or COP) of the ESE engine decreases as the heat leakage increases.It is found that as the resonance width increases,the power output and efficiency (or cooling load and COP) increase to a maximum and then decrease due to the finite range of energies which contribute positively to the power generation or refrigeration in the electron system.Especially,when heat leakage is taken into account,the characteristic curves of maximum efficiency (or maximum COP) versus half resonance width are parabolic-like ones,which are quite different from the monotonic decreasing characteristic curves obtained in previous analyses without considering heat leakage.The results obtained in this paper can provide some theoretical guidelines for the design and operation of practical electron energy conversion devices such as solid-state thermionic refrigerators. | DING ZeMin,CHEN LinGen & SUN FengRui College of Naval Architecture and Power,Naval University of Engineering,Wuhan 430033,China Received December 24,2010 accepted May 30,2011 published online September 9,2011 | 2011 | Science China(Physics,Mechanics & Astronomy)2011,54,11: | 14 |
| 4 | ON A MULTILINEAR OSCILLATORY SINGULAR INTEGRAL OPERATOR(I)显示文摘ONAMULTILINEAROSCILLATORYSINGULARINTEGRALOPERATOR(I)CHENWENGUHUGUOENLUSHANZHENManuscriptreceivedOctober18,1994.RevisedDece... | CHEN WENGU * HU GUOEN * LU SHANZHEN * Manuscript received October 18, 1994. Revised December 13, 1995. *Department of Mathematics, Beijing Normal University, Beijing 100875, China. **Project supported by the National Natural Scienc | 1997 | Chinese Annals of Mathematics,Series B1997,18,2: | 8 |
| 5 | PERIODIC SOLUTIONS OF ASYMPTOTICALLY LINEA RHAMILTONIAN SYSTEMS显示文摘PERIODICSOLUTIONSOFASYMPTOTICALLYLINEARHAMILTONIANSYSTEMSFeiGuihuaQiuQingjiuManuscriptreceivedDecember5,1994.RevisedSepte... | Fei Guihua * Qiu Qingjiu * Manuscript received December 5, 1994.Revised September 7, 1995. *Department of Mathematics, Nanjing University, Nanjing 210008, China. **Project supported by the National Natural Science Foundation of China. | 1997 | Chinese Annals of Mathematics,Series B1997,18,3: | 7 |
| 6 | Realization of allowable qeneralized quantum gates显示文摘The most general duality gates were introduced by Long,Liu and Wang and named allowable generalized quantum gates (AGQGs,for short).By definition,an allowable generalized quantum gate has the form of U=YfkjsckUK,where Uk's are unitary operators on a Hilbert space H and the coefficients ck's are complex numbers with |Yfijo ck\ ∧ 1 an d 1ck| <1 for all k=0,1,...,d-1.In this paper,we prove that an AGQG U=YfkZo ck∧k is realizable,i.e.there are two d by d unitary matrices W and V such that ck=W0kVk0 (0 | ZHANG Ye,CAO HuaiXin* & LI Li College of Mathematics and Information Science,Shaanxi Normal University,Xi’an 710062,China Received December 19,2009 accepted January 19,2010 published online August 2,2010 | 2010 | Science China(Physics,Mechanics & Astronomy)2010,53,10: | 5 |
| 7 | MODELING OF FERRITE GRAIN GROWTH OF LOW CARBON STEELS DURING HOT ROLLING显示文摘For most commercial steels the prediction of the final properties depends on accurately calculating the room temperature ferrite grain size. A grain growth model is proposed for low carbon steels Q235B during hot rolling. By using this model, the initial ferrite grain size after continuous cooling and ferrite grain growing in coiling procedure can be predicted. Finally, in-plant trials were performed in the hot strip mill of Ansteel. The calculated final ferrite grain sizes are in good agreement with the experimental ones. It is helpful both for simulation of microstructure evolution and prediction of mechanical properties. | Y.T. Zhang, D.Z. Li and Y.Y. LiInstitute of Metal Research, The Chinese Academy of Sciences, Shenyang 110016, China Manuscript received 26 December 2001 in revised form 9 February 2002 | 2002 | Acta Metallurgica Sinica(English Letters)2002,15,3: | 4 |
| 8 | Diurnal SST warming in the Bay of Biscay:satellite measurements and model prediction显示文摘NOAA AVHRR data from the Bay of Biscay between 1988 and 1990 have been examined in order to extract information on the fluctuations of sea surface temperature (SST) at the diurnal time scale. The temporal and spatial distributions of diurnal warming in the area are obtained. The diurnal warming occurs during the summer months. Large diurnal warming in excess of 1℃ is found within 100 km along the west coast of France and within 30 km along the north coast of Spain. In the central Bay of Biscay the diurnal warming is typically about 0.5℃. The diurnal warming up to 6℃ is observed occasionally in the coastal areas where the wind speed is very low. A one-dimensional oceanic mixed-layer model has been used to simulate the diurnal warming. The results demonstrate that the diurnal warming increases with the decrease of the wind speed and the increase of the net heat flux. The comparison shows that the model results are in good agreement with the satellite measurements. | Huang Weigen I. S. Robinson and N. C. Wells 1. Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China 2. Oceanography Department, Southampton University, Southampton SO9 5HN, UK (Received December 9, 1997 accepted June 12 | 1999 | Acta Oceanologica Sinica1999,18,2: | 4 |
| 9 | Effect of Cultural Measures on Nutrient Contellts in Rice Plants with Erect Panicles显示文摘Since1981,newricevarietieswitherectpanicles,suchasLiaojing5,Shennong91,Liaojing326andShennong8801,havebeenbredinLiaoningProvinceofChina.Experimelltalresultsindicatedthatthegrainyieldsofvarietieswitherectpaniclesnotonlyexceededthoseofcultivarswithcurv... | WANG BOLUN LIU XINAN YU GUIRUI WANG SHUI and ZOU BANGJI(Shenyang Agricultural University, Shenyang 110161 (China))(Institute Of Applied Ecolopy, the Chinese Academy of Sciences, Shenyany 110015 (China))(Received November 8, 1998 revised December 21, 1998) | 1999 | Pedosphere1999,9,3: | 3 |
| 10 | Phylogenetic relationship of Podocopida (Ostracoda: Podocopa) based on 18S ribosomal DNA sequences显示文摘Nucleotide sequences from 18S rDNA of 11 ostracodes, which represent four suborders and six superfamilies of podocopidan, were determined. The phylogenetic relationships were analyzed based on three kinds of methods (maximum-likelihood, maximum-parsimony, and neighbor-joining), and the three topologies gained were basically similar. The results have showed that (1) a monophyletic Podocopida was supported strongly; (2) the phylogenetic relationships of four suborders were (Darwinulocopina plus (Bairdiocopina plus (Cytherocopina plus Cypridocopina))), which indicated that a close relationship between Cytherocopina and Cypridocopina, and Darwinulocopina had separated early from the main podocopinan; (3) Cypridocopinan formed a monophyletic group, among which the phylogenetic relationship of three superfamilies was (Cypridoidea plus (Macrocypridoidea plus Pontocypridoidea)). | YU Na1, ZHAO Meiying1, CHEN Liqiao1*, YANG Pin11. School of Life Science, East China Normal University, Shanghai 200062, ChinaReceived 10 December 2005 accepted 11 February 2006 | 2006 | Acta Oceanologica Sinica2006,25,2: | 3 |
| 11 | ELECTRODEPOSITED NiSCo ALLOY USED AS HYDROGEN EVOLUTION REACTION CATHODE IN WATER ELECTROLYSIS显示文摘NiSCo catalytic cathodes were obtained by electrodeposition in a typical Watt cellwith addition of NH2 CSNH2 and CoCl2. Using CoCl2 concentration, current density,temperature and pH value as main factors, an orthogonal experiment was designed todetermine the optimum technological conditions according to HER overpotentials. Theoptimum technological conditions were obtained from the minimum HER overpoten-tial -70m V. The corresponding electrochemical parameters (Tafel slope b, exchangecurrent density to) were determined by steady-state polarization curves. The contentof S, Co and its microstructure were measured by EPMA and XRD. | Q.Han,J.S.Chen,K.R.Liu and X.J.WeiSchool of Materials & Metallurgy, Northeastern University, Shenyang 110004, China Manuscript received 172001 in revised form 2 December 2001 | 2002 | Acta Metallurgica Sinica(English Letters)2002,15,4: | 3 |
| 12 | NUMERICAL SIMULATION OF ATOMIZATION GAS FIELDS IN VARIOUS ATOMIZING PROCESSES显示文摘A Computational Fluid Dynamics Software was used to calculate the atomizing gas fields generated by a self-designed atomizer and to analyze the effects of key atomizing variables such as gas pressure and protrusion length of delivery tube on the gas flow state at the tip of or inside the delivery tube. Increasing the length of delivery tube to a certain extent, the eddy flow region with positive pressure moves away from the tip of delivery tube, which is favorable to achieve the effective atomization of the melt. | F.Y. Cao, J.F. Sun, C.S. Cui, J. Shen and Q.C. LiNational Key Laboratory of Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin 150001,ChinaManuscript received 10 December 2001 in revised form 31 January 2002 | 2002 | Acta Metallurgica Sinica(English Letters)2002,15,3: | 3 |
| 13 | New Tannins from Lythrum sulicaria L显示文摘NewTanninsfromLythrumSalicariaLMaster'sDegree;Xiu-JingMaSupervisors;Chun-RuJi;Yu-MingWang;Guang-QiangZhang;andYan-ZeLiu(Henan... | Master’s Degree Xiu-Jing MaSupervisors Chun-RuJi Yu-Ming Wang Guang-Qiang Zhang and Yan-Ze Liu(Henan College of Traditional Chinese Medicine ,Zhengzhou 450003)Received December 26,1995,Accepted September 19,1996The crude drug Lythrum salicaria L(Lythr | 1996 | Journal of Chinese Pharmaceutical Sciences1996,5,4: | 2 |
| 14 | Optimal guaranteed cost control for fuzzy descriptor systems with time-varying delay显示文摘Based on the delay-independent rule, the problem of optimal guaranteed cost control for a class of Takagi-Sugeno (T-S ) fuzzy descriptor systems with time-varying delay is studied. A linear quadratic cost function is considered as the performance index of the closed-loop system. Suffcient conditions for the existence of guaranteed cost controllers via state feedback are given in terms of linear matrix inequalities (LMIs), and the design of an optimal guaranteed cost controller can be reduced to a convex optimization problem. It is shown that the designed controller not only guarantees the asymptotic stability of the closed-loop fuzzy descriptor delay system, but also provides an optimized upper bound of the guaranteed cost. At last, a numerical example is given to illustrate the effectiveness of the proposed method and the perfect performance of the optimal guaranteed cost controller. | Tian Weihua1,2 & Zhang Huaguang3 1. School of Information Science and Engineering, Northeastern Univ., Shenyang 110004, P. R. China 2. Dept. of Automatic Control, Shenyang Inst. of Engineering, Shenyang 110136, P. R. China 3. School of Information Science and Engineering, Northeastern Univ., Shenyang 110004, P. R. China. (Received December 27, 2006) | 2008 | Journal of Systems Engineering and Electronics2008,19,3: | 2 |
| 15 | MINERALIZATION AND ALTERATION ZONING IN THE GEJIU TIN ORE FIELD,YUNNAN,CHINA显示文摘 | Zhao Yiming and Li Daxin(Institute of Mineral Deposits Chinese Academy of Geological Sciences)(Received December 20 1994) | 1995 | Scientia Geologica Sinica1995,,02: | 1 |
| 16 | Amyloidosis-associated kidney disease显示文摘 | December LM | 2006 | Am Soc Nephol2006,17,12: | 1 |
| 17 | Mechanisms and Limits of Induced Postnatal Lung Growth显示文摘 | This Official Workshop Report was approved by the ATS Board of Directors December 2003 | 2004 | Am J Respir Crit Care Med2004,,3: | 1 |
| 18 | von Willebrand's disease in gynecologic practice显示文摘 | Committee Opinion number 263 December 20001 | 2001 | Obstet Gynecol2001,98,6: | 1 |
| 19 | Issues in Healthcare Settings显示文摘 | Division of Health Qnality Promotiom National Center for Infectious Disease and Centers for Disease Control and Prevention Surveillance of Heahbcare Personnel withHIV/AIDS as of December 2002 | 2003 | December 112003,,: | 1 |
| 20 | Socan M, Prosenc K, Nagode 1VL Differences in clinical predic- tors of influenza in adults and children with influenza-like illness 显示文摘 | EDate accessed: 11 December 2010] | 2010 | Cent EurJ Med2010,5,1: | 1 |