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| 1 | L^p-Boundedness of Marcinkiewicz Integrals with Hardy Space Function Kernels | Yong Ding Department of Mathematics, Beijing Normal University, Beijing 100875, P. R. China Dashan Fan Department of Mathematics, Anhui University and University of Wisconsin-Milwaukee. MW 53201 USA Yibiao Pan Department of Mathematics, University of Pittsburgh. Pittsburgh. Pennsylvania 15260. USA | 2000 | Acta Mathematica Sinica,English Series2000,16,4: | 88 |
| 2 | A HEMODYNAMIC MODEL AND A MATHEMATICAL METHOD TO CALCULATE THE DYNAMICS INDEX FOR CEREBRAL CIRCULATION显示文摘The dynamics indexes,playing an important role in the cerebral circulation,will be changed significantly compared with their normal range in many cerebrovascular disease.The geometrical parameters of cerebrovascular may be detected by DSA or MRA scan,but the hemodynamic parameters,such as,blood flow,artery resistance and compliance must be calculated by building hemodynamics model. The cerebral circular system that has four entrances for blood flow(two carotid and two vertebral arteries)and three communicating arteries is much different from the systematic ststem which has only one entrance,ic.,the aortic.The purpose of this study is to set up a hemodynamics model with lumped parameters to describe the cerebral circulation.From this model,we get its governing equations and present a new method to calculate the hemodynamics indexes in clinical application. | Ding Guang-hongDepartment of Applied Mechanics, Fudan University, Shanghai 200433, P. R. ChinaLu Chuan-zhenDepartment of Neurology, Huashan Hospital, Institute of Neurology, Shanghai MedicalUniversity, Shanghai 200040, P.R.ChinaYao Wei, Wang Yan-boDepartment of Applied Mechanics, Fudan University, Shanghai 200433, P. R. ChinaCheng Shao-HuaDepartment of Neurology, Huashan Hospital, Institute of Neurology, Shanghai MedicalUniversity, Shanghai 200040, P.R.ChinaCheng JinDepartment of Applied Mechanics, Fudan University, Shanghai 200433, P. R. ChinaGao Jian, Wang Xiao-dongBeijing 305 Hospital, Beijing 100017, P.R.China | 1997 | Journal of Hydrodynamics1997,9,4: | 17 |
| 3 | NUMERICAL SIMULATION OF FORGING AND SUBSEQUENT HEAT TREATMENT OF A ROD BY A FINITE VOLUME METHOD显示文摘A method to simulate processes of forging and subsequent heat treatment of an axial symmetric rod is formulated in eulerian description and the feasibility is investigated. This method uses finite volume mushes for troching material deformation and an automatically refined facet surface to accurately trace the free surface of the deforming material.In the method,the deforming work piece flows through fixed finite volume meshes using eulerian formulation to describe the conservation laws,Fixed finite volume meshing is particularly suitable for large three-dimensional deformation such as forging because remeshing techniques are not required, which are commonly considered to be the main bottelencek in the ssimulations of large defromation by using the finite element method,By means of this finite volume method, an approach has been developed in the framework of 'metallo-thermo-mechanics' to simulate metallic structure, temperature and stress/strain coupled in the heat treatment process.In a first step of simulation, the heat treatment solver is limited in small deformation hypothesis,and un- coupled with forging. The material is considered as elastic-plastic and takes into account of strain, strain rate and temperature effects on the yield stress.Heat generation due to deformation,heat con- duction and thermal stress are considered.Temperature - dependent phase transformation,stress-in- duced phase transformation,latent heat,transformation stress and strain are included.These ap- proaches are implemented into the commerical commercial computer program MSC/SuperForge and a verification example with experimental date is given as comparison. | P. R. Ding D. Y. Ju T. Lnouc and E. de Vries( 1) MSC Japan Ltd., Osaka,Japan 2) Saitama Institute of Technology,Saitama,Japan 3) Kyoto Universily, Kyoto, Japan 4) MacNeal - Schwendler (E. D. C. ) B. V., Gouda, The Netherlands) | 2000 | Acta Metallurgica Sinica(English Letters)2000,13,1: | 6 |
| 4 | Commuting Involutions with Fixed Point Set of Constant Codimension | Yanying Wang Zhende Wu Yanhong Ding, Department of Mathematics, Hebei Normal University, Shijiazhuang 050016, P. R. China | 1999 | Acta Mathematica Sinica,English Series1999,15,2: | 6 |
| 5 | Effect of Preparation Methods of Bi_2O_3 Nanoparticles on their Photocatalytic Activity显示文摘Bi 2O 3 nanoparticles were prepared by means of ammonia precipitation, polyol mediated methods and microemulsion chemical method. The structure and properties of the as-prepared nanoparticles, having been submitted to a heat-treatment test at 750 ℃, were characterized by means of XRD, BET, XPS and UV-Vis absorption techniques. The photocatalytic oxidation reactions of benzene, toluene and xylene were used as the model reaction to measure the photocatalytic activity of Bi 2O 3 nanoparticles, respectively. The results show that the crystallite size of Bi 2O 3 prepared with different methods and calcined at 750 ℃ were 50.6, 38.5 and 31.5 nm, respectively. The photocatalytic activity of Bi 2O 3 nanoparticles prepared with the microemulsion chemical method was higher than that of the particles prepared with the polyol mediated method; and that of the particles prepared with the micromulsion chemical method was the highest among the three. The degradation rates of the three pollutants xylene, toluene and benzene decreased in sequence. | DING Peng 1,2 , DU Yao-guo 1** and XU Zi-li 1 1. Department of Environment Science, College of Environment and Resources, Jilin University, Changchun 130023, P.R.China 2. Department of Chemistry, Changchun Normal College, Changchun 130032, P. R. China | 2004 | Chemical Research in Chinese Universities2004,20,6: | 5 |
| 6 | A_r-Weighted Poincare-Type Inequalities for Differential Forms in Some Domains | Shu Sen DING Department of Mathematics. Seattle University, 900 Broadway, Seattle. WA 98122, USA Yun Ying GAI Department of Mathematics, Harbin Institute of Technology, Harbin. 150001, P. R. China | 2001 | Acta Mathematica Sinica,English Series2001,17,2: | 5 |
| 7 | Hydrothermal Synthesis and Characterization of a Novel Supramolecular Network Compound [Co(IN)_2(H_2O)_4](IN=Isonicotinate)显示文摘A novel supramolecular compound, [Co(IN)2(H2O)4](1), was synthesized by means of the hydrothermal method and its structure was characterized with elemental analysis, FT-IR spectrum, TGA and X-ray diffraction. Though the unit cell structure of the title compound is only monomeric, all these units as building blocks are assembled into a novel three-dimensional supramolecular network via the widely hydrogen-bonding and π-π stacking interactions. | JIA Hong-bin 1,3, YU Jie-hui 1, DING Hong 1, XU Ji-qing 1**, YE Ling 2, JING Wei-jie 1WANG Tie-gang 1, XU Jia-ning 1, QU Xue-jian 1 and LI Zeng-chun 1,31. College of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130023, P. R. China 2. Key Laboratory of Supramolecular Structure and Materials of Ministry of Education, Jilin University, Changchun 130023, P. R. China 3. Department of Chemistry, Inner Mongolia University for Nationalities, Tongliao 028000, P. R. China | 2002 | Chemical Research in Chinese Universities2002,18,4: | 5 |
| 8 | Effect of partial remelting time on the initial carbide in semisolid structure of hypereutectic high Cr cast iron显示文摘1 .Introduction High chromium white cast iron is one of the wear-resistant materials widely used at present. With an increase of carbon content, the volume fractions of carbides increase. As a result, its wear resistance is enhanced and impact toughness declines co}espondingly If the | ~*Zhifu HUANGI~(1,2), Jiandong XING~(1,2), Wei HE~1, Ding LI~1 (1. School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, Shanxi, P. R. China 2 State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, Shanxi P. R. China) | 2004 | China Foundry2004,1,2: | 3 |
| 9 | Distribution of Leaf Color and Nitrogen Nutrition Diagnosis in Rice Plant显示文摘Greenness and nitrogen content of each leaf on main stem of different japonica and indica ricevarieties under different nitrogen levels were investigated. Results showed that the fourth leaf from the top ex-hibited active changes with the change of plant nitrogen status. When the plant nitrogen content was low, itscolor and nitrogen content were obviously lower than those of the three top leaves. With the increase of plantnitrogen content, the color and nitrogen content of the fourth leaf increased quickly, and the differences ofcolor and nitrogen content between the fourth leaf and the three top leaves decreased. So, the fourth leaf wasan ideal indication of plant nutrition status. In addition, color difference between the fourth and the third leaffrom the top was highly related to the plant nitrogen content regardless of the variety and development stage.Therefore, color difference between the fourth and the third leaf could be widely used for diagnosis of plantnutrition. Results also indicated that the minimized color difference between the fourth and the third leaf at the criticaleffective tillering, the emergence of the second leaf from the top, and the heading was the symbol of high yield. Plantnitrogen content of 27 g kg-1 DW for japonica rice and 25 g kg-1 DW for indica were the critical nitrogen concentrations. | WANG Shao-hua, CAO Wei-xing, WANG Qiang-sheng, DING Yan-feng, HUANG Pi-sheng and LING Qi-hong(Key Laboratory of Crop Growth Regulation , Ministry of Agriculture /Nanjing Agricultural University ,Nanjing 210095 , P. R. China) | 2002 | Agricultural Sciences in China2002,1,12: | 3 |
| 10 | Highly stable carbon-based perovskite solar cell with a record efficiency of over 18% via hole transport engineering显示文摘Carbon-based perovskite solar cells show great potential owing to their low-cost production and superior stability in air, compared to their counterparts using metal contacts. The photovoltaic performance of carbon-based PSCs, however, has been progressing slowly in spite of an impressive efficiency when they were first reported. One of the major obstacles is that the hole transport materials developed for stateof-the-art Au-based PSCs are not suitable for carbon-based PSCs. Here, we develop a low-temperature,solution-processed Poly(3-hexylthiophene-2,5-diyl)(P3 HT)/graphene composite hole transport layer(HTL), that is compatible with paintable carbon-electrodes to produce state-of-the-art perovskite devices. Space-charge-limited-current measurements reveal that the as-prepared P3 HT/graphene composite exhibits outstanding charge mobility and thermal tolerance, with hole mobility increasing from8.3 × 10^-3 cm^2 V-1 s-1(as-deposited) to 1.2 × 10^-2 cm2 V^-1 s^-1(after annealing at 100°C)-two orders of magnitude larger than pure P3 HT. The improved charge transport and extraction provided by the composite HTL provides a significant efficiency improvement compared to cells with a pure P3 HT HTL. As a result, we report carbon-based solar cells with a record efficiency of 17.8%(certified by Newport);and the first perovskite cells to be certified under the stabilized testing protocol. The outstanding device stability is demonstrated by only 3% drop after storage in ambient conditions(humidity: ca. 50%) for 1680 h(nonencapsulated), and retention of ca. 89% of their original output under continuous 1-Sun illumination at room-temperature for 600 h(encapsulated) in a nitrogen environment. | Qian-Qian Chu Bin Ding Jun Peng Heping Shen Xiaolei Li Yan Liu Cheng-Xin Li Chang-Jiu Li Guan-Jun Yang Thomas P. White Kylie R. Catchpole | 2019 | Journal of Materials Science & Technology2019,35,6: | 3 |
| 11 | A study on the effect of coating's sorption capacity on the porosity in lost foam aluminum alloy casting显示文摘Effects of coating constituent, coating density, coating layer thickness and temperature on coating sorption capacity for polystyrene decomposition products have been studied systematically. It has been found that the effect of attapulgite clay on sorption capacity is the largest among coating constituents. The sorption capacity of the coating with 2% attapulgite clay is elevated by 81%. The relationship between casting porosity and coating sorption capacity has been studied. It has been pointed out that higher coating sorption capacity for polystyrene decomposition products is helpful to decrease the casting porosity. Results also show that the sorption capacity of self-developed HW-1 coating for polystyrene decomposition products is as good as that of Ashland coating from America. | ~*G. H. Wu~1, M. Xie~1, W.J. Ding~1, J.R. Luo~2(1. Shanghai Jiaotong University, Shanghai 200030, P. R. China 2. Huazhong University of Science and Technology, Wuhan 430074, Hubei, P. R. China) | 2004 | China Foundry2004,1,S1: | 2 |
| 12 | Effect of La on Partial Oxidation of Ethanol to Hydrogen over Ni/Fe Catalysts显示文摘The partial oxidation of ethanol to hydrogen was investigated over Ni/Fe/La catalysts prepared by the co precipitation method. The effects of introduction of La promoter and the reaction temperature on the catalytic performance were studied. It was found that the introduction of La into Ni/Fe catalysts is helpful to increase the selectivity to hydrogen and the stability of the catalysts. The results of XRD and XPS characterization show that the structure of the catalyst was changed during the reaction. The existence of LaFeO 3 species is possibly the main reason of the increase of the catalyst stability. | WANG Wei ping, WANG Zhi fei, DING Yan and LU¨ Gong xuan ** State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China | 2003 | Chemical Research in Chinese Universities2003,19,2: | 2 |
| 13 | IP over ATM Implementation with Local Switch Mode显示文摘In classical IPOA , the communication of two users between local Asynchronous Transfer Mode( ATM ) ports needs a VCC , however, it is not an elegant solution to the ATM access equipments design when the performance of the whole system is considered. Thus, we investigate the way to provide the improved IPOA protocol that uses switching way in local ports. And it is fully compatible with the CIPOA by using the same protocol for ARP and IP forwarding. In addition, we also present the design of one 10/100 Mbit/s auto adaptive IPOA client board with local switch ability idea and CAM mechanism for our project. | KONG Ling shan, YOU Meng,\ DING Wei (Beijing University of Posts and Telecommunications, Beijing 100876, P. R. China) | 2002 | The Journal of China Universities of Posts and Telecommunications2002,9,3: | 2 |
| 14 | Efficient Synthesis of 2-(8-Quinolinoxy)-4H-imidazolin-4-ones显示文摘The title compounds 2-(8-quinolinoxy)-4 H -imidazolin-4-ones(4) were synthesized by means of base catalytic reactions of 8-hydroxyquinoline with each of carbodiimides 2, which were obtained via aza-Wittig reactions of iminophosphoranes 1 with the corresponding aromatic isocyanates. | DING Ming-wu ** , SHU Ya-li and LIU Zhao-jie Institute of Organic Synthesis, Central China Normal University, Wuhan 430079, P. R. China | 2003 | Chemical Research in Chinese Universities2003,19,3: | 2 |
| 15 | A Method for OLED Test显示文摘Several important parameters of the OLED were analyzed in this paper, a testing method based on the CCD was propounded and how to improve the performance of this system were also disserted. | Yongmao Feng, Tiefu Ding Changchun Institute of Optics fine Mechanics and Physics, CAS, P. R. China, Tel: 86-431-4627053 | 2003 | 光学学报2003,23,S1: | 2 |
| 16 | Genome‐wide association studies for hematological traits in swine显示文摘 | J. Y. Wang Y. R. Luo W. X. Fu X. Lu J. P. Zhou X. D. Ding J. F. Liu Q. Zhang | 2012 | Anim Genet2012,,1: | 1 |
| 17 | Method of Fire Image Identification Based on Optimization Theory显示文摘In view of some distinctive characteristics of the early-stage flame image, a corresponding method of characteristic extraction is presented. Also introduced is the application of the improved BP algorithm based on the optimization theory to identifying fire image characteristics. First the optimization of BP neural network adopting Levenberg-Marquardt algorithm with the property of quadratic convergence is discussed, and then a new system of fire image identification is devised. Plenty of experiments and field tests have proved that this system can detect the early-stage fire flame quickly and reliably. | Lu Jiecheng, Ding Ding, Wu Longbiao & Song WeiguoDept. of Electronic Science and Technology, University of Science and Technology of China, Hefei 230026, P. R. China(Received March 3, 2001) | 2002 | Journal of Systems Engineering and Electronics2002,13,2: | 1 |
| 18 | High normal fasting blood glucose is associated with dementia in Chinese elderly显示文摘 | James A. Mortimer Amy R. Borenstein Ding Ding Charles DeCarli Qianhua Zhao Cathleen Copenhaver Qihao Guo Shugang Chu Douglas Galasko David P. Salmon Qi Dai Yougui Wu Ronald Petersen Zhen Hong | 2010 | Alzheimer’s & Dementia: The Journal of the Alzheimer’s Association2010,,6: | 1 |
| 19 | Influences of Oyster Shell Soil Conditioner on Soil and Plant Rhizospheric Microorganisms显示文摘Oyster shell soil conditioner had significant influence on soil and rhizospheric microorganisms in their biomass,respiratory intensity and nutritional requirement. It could stimulate growth of soil and rhizospheric microorganisms, especially nitrogen-fixers, and intensify soil respiration in proportion to the dose and fertilizing time of the conditioner, leading to the increase in the number of nitrogen fixing bacteria and the decrease in the number of bacteria with special nutrition demands. | JIANG Guoliang, LIU Yun, DING Mingyu, KONG XiuqinCollege of Marine Life Sciences, Ocean University of China, Qingdao 266003, P. R. China | 2003 | Journal of Ocean University of Qingdao2003,2,2: | 1 |
| 20 | A Multi-Agent Based Equipment Bidding System on the Web显示文摘This paper puts forward a new framework of multi-agent based equipment bidding system on the Web(MAEBSW). The purpose of the paper is to make the process of enterprise equipment bidding, especially the decisionprocess of enterprise equipment bidding, more intelligent. The system discussed in this paper is an efficient method forthe enterprises doing business electronically. We also present our opinion of the approaches to defining agents. We em-phasize the importance of agent being able to provide explanation about its behavior for the user or other agents. Based onthis opinion we design a new common architecture of most agents in MAEBSW. | Hu Lichen, Liu Li, Dong Yu & Ding Yuzhan(University of Science and Technology, Beijing 100083, P. R. China China North Vehicle Institute, Beijing 100072, P. R. China) | 2002 | Journal of Systems Engineering and Electronics2002,13,4: | 1 |