|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 挤压对凹凸棒石粘土胶体性能的影响及其机理显示文摘凹凸棒石粘土经过挤压辊适当的挤压处理后 ,其内部显微结构被“膨松化”,并形成显微间隙与裂缝 ,从而使水分容易进入其中 ,造成显微结构的水化膨胀 ,以致在弱分散条件下就可在介质中解体分散 ,形成较高粘度 (如二次挤压凹土的粘度可达未挤压凹土的 5~ 10倍 )。凹土经挤压后 ,其水悬液的触变性和依时性也明显增强 ,而流变特性则随凹土挤压程度的加深有从不典型宾汉体向假塑性流体演变的趋势 ,且塑性粘度 (η1)上升 ,动切力 (τ0 )下降。 | 周杰 马毅杰 刘兰俊 刘逊芬11 | 1999 | 矿物学报1999，19，4： | 22 |
| 2 | Nutrients concentration and changes in decade-scale in the central Bohai Sea显示文摘The nutrients contents and distributions are discussed briefly, based on the data obtained in 1998~1999. Besides explanation of the results,a 20 a time series data of nutrients and biological parameters for central Bohai Sea are reviewed. It is found that both concentration and relative content of nutrients have been changed dramatically. The increase of nitrogen and decrease of phosphate and silicate led to the dramatically increase of N/P ratio and the decrease of Si/N ratio. The situation of nitrogen limiting in central Bohai Sea is gradually changing to that of relative lack of phosphate and silicate. The decrease of the Huanghe River input to the Bohai Sea may be responsible for this change. These in turn may limit the growth of diatom and thus promote the development of pyrrophyta if other conditions (e.g. temperature and hydrodynamics) are suitable. We conclude that this may be the major inducement factor of pyrrophyta red tide in the Bohai Sea. | Yu Zhigang 1,Mi Tiezhu 1,Yao Qingzhen 1,Xie Baodong 1,Zhang Jing 11 .CollegeofChemistryandChemicalEngineering ,OceanUniversityofQingdao ,Qingdao 2 6 6 0 0 3 ,China | 2001 | Acta Oceanologica Sinica2001，20，1： | 18 |
| 3 | Study on detection of coastal water environment of China by ocean color remote sensing显示文摘Coastal water environment is essentially enhanced by ocean color which is basically decided by substances concentration in water such as chlorophyll, suspended material and yellow substance. It is very difficult, even not possible, to detect water color by expensive ship routing, because of its temporal and spatial variety of feature and scales in the very complicated dynamical system of coastal water. With the development of satellite technique in the last 20 a, space sensors can be applied to detect ocean color by measuring the spectra of water leaving radiance.It is proven that ocean color remote sensing is a powerful tool for understanding the process of oceanic biology and physics. Since the 1980s, great attention has been paid to the advanced remote sensing technique in China, especially to development of satellite programs for the coastal water environment. On 7 September 1988, China launched her first polar orbit satellite FY-1A for meteorological and oceanographic application (water color and temperature) and the second satellite FY-1B two years later. In May 1999, China launched her second generation environment satellite FY-1C with higher sensitivies, more channels and stable operation. The special ocean color satellite HY-1 is planned to be in the orbit in 2001, whose main purpose is to detect the coastal water environment of China seas. China is also developing a very advantageous sensor termed as Chinese moderate imaging spectra radiometer (CMODIS) with 91 channels, which will be a good candidate of the third generation satellite FY-3 in 2003. The technical system of ocean color remote sensing was developed by the Second Institute of Oceanography (SIO), State Oceanic Administration (SOA) in 1997. The system included data receiving, processing, distribution, calibration, validation and application units. The Hangzhou Station of SIO, SOA has the capability to receive FY-1 and AVHRR data since 1989. It was also a SeaWiFS scientific research station authorized by NASA,USA to free receive SeaWiFS data from 16 September 1997. In the recent years, the local algorithms of atmospheric correction and inversion of ocean color have been developed for FY-1C and SeaWiFS, to improve the accuracy of the measurement from satellites efficiently. The satellite data are being applied to monitor coastal water environment, such as the spatial distribution of chlorophyll, suspended material and yellow substance, red tide detection and coastal current study. The results show that the ocean color remote sensing has latent capacity in the detection of coastal water environment.In consideration of the update technique progress of ocean color remote sensing and its more important role in the detection of coastal water in the 2000s, some suggestions are set forth, which would be beneficial to the design of a cheaper but practical coastal water detection system for marine environment preservation. | Pan Delu 1,2 , Mao Tianming 1, Li Shujing 1,Huang Haiqing 11 .LaboratoryofOceanDynamicProcessesandSatelliteOceanographyofStateOceanicAdministration ,Hangzhou310 0 12 ,China 2 .LaboratoryofSubmarineGeosciencesofStateOceanicAdministration ,Hangzhou 3 | 2001 | Acta Oceanologica Sinica2001，20，1： | 16 |
| 4 | Eigenvalue approximation from below using non-conforming finite elements显示文摘This is a survey article about using non-conforming finite elements in solving eigenvalue problems of elliptic operators,with emphasis on obtaining lower bounds. In addition,this article also contains some new materials for eigenvalue approximations of the Laplace operator,which include:1) the proof of the fact that the non-conforming Crouzeix-Raviart element approximates eigenvalues associated with smooth eigenfunctions from below;2) the proof of the fact that the non-conforming EQ rot1 element approximates eigenvalues from below on polygonal domains that can be decomposed into rectangular elements;3) the explanation of the phenomena that numerical eigenvalues λ 1,h and λ 3,h of the non-conforming Q rot1 element approximate the true eigenvalues from below for the L-shaped domain. Finally,we list several unsolved problems. | YANG YiDu 1 ,ZHANG ZhiMin 2 & LIN FuBiao 11 School of Mathematics and Computer Science,Guizhou Normal University,Guiyang 550001,China 2 Department of Mathematics,Wayne State University,Detroit,MI 48202,USA | 2010 | Science China Mathematics2010，53，1： | 12 |
| 5 | Studies on the solid state reactions of coordination conpounds——XLⅤⅢ.The effect of KSCN on the thermal decomposition of cobalt(Ⅲ)-ammine complexes显示文摘The evolved gaseous analysis (EGA),infrared spectra,and XRD have been appliedto the study of solid state reactions of KSCN with five cobalt(Ⅲ)-ammine complexes:[Co-(NH3)5N3]Cl2,[Co(NH3)5(NO2)]Cl2,[Co(NH3)5(H2O)]Cl3,[Co(NH3)5Cl]Cl2,and [Co(NH3)6]Cl3in a hydrogen atmosphere.It is found that the existence of KSCN shifts the thermal decom-position of these complexes to a lower temperature.The corresponding peak temperatures arenear 140℃.The effect of KSCN is discussed and kinetic parameters of deammine reactionsare calculated. | ZHENG,Li-Min XIN,Xin-Quan Coordination Chemistry Institute,Nanjing University,Nanjing 210008 Part XLVⅡ of this series:Chin.J.Chem.,11,21(1993) | 1993 | Chinese Journal of Chemistry1993，11，3： | 7 |
| 6 | INTERFACIAL STRUCTURE AND PHASE REACTION IN SiC/NiCr ALLOY JOINT显示文摘Bonding of SiC to SiC using Ni and Ni - 25at%Cr foils was performed at high temperature.Interface structures and reaction phases were investigated by EPMA analyses and XRD diffraction method, re- spectively. At a bonding temperature of 1273K Ni reacts with SiC and forms various Ni silicides con- taining graphite baside SiC. Ni3Si without graphite was formed at Ni side.The interface structure of SiC/Ni joint was SiC/Ni2Si + C/Ni31 Si12 + G/Ni3 Si/Ni. At the interface between SiC and Ni- 25at%Cr alloy the Ni silicide was only Ni2Si at the same bonding temperature,and further(Cr, Ni)7 (Si, C)3 carbide was formed between Ni silicide + graphite zone and Ni - 25at%Cr alloy.The interface structure of SiC/Ni - 25at%Cr alloy was SiC/Ni2Si + C/(Cr, Ni)7 (Si, C)3+Ni(ss. Cr, Si)/Ni - 25at%Cr. | J. C. Feng M. Naka J. C. Schuster(School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China Joining and Welding Research Institute, Osaka University, Mihogaoka 11 - 1, Ibaraki, Osaka 567, Japan Institute of P | 2000 | Acta Metallurgica Sinica(English Letters)2000，13，1： | 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 | Numerical study on residual current and its impact on mass transport in the Hangzhou Bay and the Changjiang Estuary I. A3-D joint model of the Hangzhou Bay and the Changjiang Estuary显示文摘A 3-D numerical model is set up in a large domain covering the Hangzhou Bay and the Changjiang Estuary based on the ECOM model in orthogonal curvilinear coordinates.The numerical schemes for baroclinic pressure gradient (BPG)terms and convective terms are improved in the paper according to the characteristics of velocity field and mass transport in the area.The model is validated by the simulations of residual current and salinity transport in the Hangzhou Bay and the Changjiang Estuary. | Zhu Shouxian 1,2 ,Shi Fengyan 1,Zhu Jianrong 1,Ding Pingxing 11 .StateKeyLaboratoryofEstuarineandCoastalResearch ,EastChinaNormalUniversity ,Shanghai 2 0 0 0 6 2 ,China 2.MeteorologyInstituteofthePLAScienceandEngineeringUniversity ,Nanjing 2 11 | 2001 | Acta Oceanologica Sinica2001，20，1： | 5 |
| 9 | Geochemistry of trace elements and Sr-Nd isotopes of foraminifera shell from the Okinawa Trough显示文摘Trace elemental associations and Sr-Nd isotopic compositions are of important to recognition of biogenic material from mixed marine sediments. The foraminifera shell from the Okinawa Trough strongly enriches Sr,P,Mn and Ba, enriches Li,U,Th,Sc,Co,Cu,Pb,Zn,Cr,Rb,Y,Sb and light rare earth elements,slightly enriches V,Ga,Zr,Nb,Cd and middle rare earth elements,is short of Mo,In,Sn,Cs,Hf,Ta,W,Ti,Bi and heavy rare earth elements. The mechanism of elemental enrichment in forminifera is the concentrations of trace elements in sea water and selective absorption of trace elements during foraminifera living, as well as the geochemical affinity between major elements and trace elements.The REE (rare earth elements)partition pattern of foraminifera shell of the Okinawa Trough shows enrichment of middle rare earth elements with slightly negative Ce anomaly,which are different from those of foraminifera of the Pacific Ocean.The Sr,Nd isotopic ratios of the Okinawa Trough foraminifera are 0 709 769 and 0 512 162,respectively, which are different not only from those of oceanic water, but also from those of river water of China’s Mainland, the former is slightly higher than those of oceanic water,but much lower than those of river water;the latter is slightly lower than those of oceanic water,but higher than those of river water,demonstrating that the Okinawa Trough sea water has been influenced by river water of China’s Mainland. | Meng Xianwei 1,2 ,Du Dewen 1,2 ,Cheng Zhenbo 11 .FirstInstituteofOceanography ,StateOceanicAdministration ,Qingdao 2 6 6 0 6 1,China2 .KeyLaboratoryofMarineScienceandNumericalModeling ,StateOceanicAdministration ,Qingdao 2 6 6 0 6 1,China | 2001 | Acta Oceanologica Sinica2001，20，1： | 4 |
| 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 | Stimulatory Effects of NMDA on Intracellular Ca^(2+) Nonlinear Kinetic Model in Rat Dorsal Root Ganglion Neurons显示文摘The present study revealed the stimulatory effects of NMDA on intracellular ca 2+ concentration in rat dorsal root ganglion (DRG) neurons. Fura 3/AM, an intracellular calcium fluorescent indicator was used to monitor the fluctuation of 〔ca 2+ 〕 i. Here we present the evidence that (1) Confocal microscopy resolved the cells of three different sizes, based on which a cell diameter distribution histogram was drawn. The fluorescence signals originated from the cells of different sizes, small size (diameter<30μm), medium size (diameter between 30 to 50μm),and large size (diameter>50μm); presumably intracellular Ca 2+ concentration was different in the cells of different sizes. (2) The time related variation of fluorescence intensity was observed. In particular, the fluorescence intensity in 0 Ca 2+ bath solution was affected by the application of high ca 2+ solution. (3) In 0 ca 2+ bath solution the intracellular Ca 2+ concentration nonlinear properties of distinct diameter cells was described. (4) A kind of SETAR model was fitted with a medium sized cell.(5)The residuals from the fitted model were tested to see whether they were plausibly Gaussian. These findings indicated that in distinct types of cells intracellular Ca 2+ concentration had different characteristics in different DRG neurons, and contributed to different functions of these neurons. Besides, the established threshold autoregressive model can share intracellular ca 2+ with the main nonlinear kinetic | LAN Tong Han 1, LI Guo Hua 2, LI Zhi Wang 2, LIN Jia Rui 11 Department of Biomedical Engineering,Huazhong University of Science and Technology, Wuhan 430074,China 2 Department of Molecular and Cellular Neurobiology, Research Center of Experimental Medicine, Huazhong University of Science and Technology, Tongji Medical college, Wuhan 430030,China | 2002 | Chinese Journal of Biomedical Engineering(English Edition)2002，11，4： | 3 |
| 12 | Calculation of Temperature Field During Laser Transformation Hardening of Cylindrical Bodies显示文摘A Two-dimensional transient heat transfer model for laser transformation hardening process of cylindrical bodies has been developed. The surface heat loss of the sample, the latent heat of phase transformation, and the temperature dependence of thermal properties of material were considered. The laser heat source was considered as a moving Gaussian heat flux with a constant velocity. Finite element method was used to calculate the transient temperature field. A program to calculate the temperature field was developed using FORTRAN language. The transient temperature field, the width and depth of laser transformation hardening zone of 42CrMo steel sample during laser transformation hardening process was calculated. The widths and depths of laser transformation hardening zones of 42CrMo steel samples were also measured experimentally. The calculated widths and depths of laser transformation hardening zones are in good agreement with the experimental results. | Liwen Zhang, Lixia Wei Guoliang Zhang, J. Th.MDe Hosson Yuanliang Xia , Fugang Wang 1.The State Key Laboratory for Materials Modification by Laser, Ion and Electron Beams 2.Material Engineering Department of Dalian University of Technology, Dalian 11 60 | 2000 | Journal of Shanghai Jiaotong university(Science)2000，5，1： | 3 |
| 13 | Pd/Sulfated Alumina: a Novel Catalyst for Selective Catalytic Reduction of NO with Methane显示文摘 | LI Ning, WANG Aiqin, ZHENG Mingyuan, WANG Xiaodong, ZHANG Tao (Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 11 6023, Liaoning, China) | 2003 | 催化学报2003，24，11： | 2 |
| 14 | Effects of Delayed Second Cochlear Implant显示文摘Objective Since Helms' successful bilateral cochlear implantation with good results in 1996, there have been increasing number of reports on bilateral cochlear implantation. Most second device have been implantated within one year after the first. Considering effects of long time auditory deprivation, it is not clear whether a delayed second cochlear implant serves to add additional benefits and how it may interact with central nervous system plasticity. Methods Three cases who received delayed second cochlear implants at People's Hospital of Peking University from 2002 to 2005 were reviewed. The interval between the first and second implants was longer than 2 years in all three patients. Sound perception, and unilateral/bilateral speech discrimination in quiet and noise were evaluated. In addition, GAP detection test was conducted in one patient. Results In one case, having both implants on provided improved performance compared to using only one implant both in quiet and noise. Presumably due to visual interference from lip-reading or short interval between second implant and testing, one patient showed no improvement from using the second implant either in quiet or noise, while the last case demonstrated additional benefits from the second implant only in quiet. In all three patients, performance in recognizing the four tones in Mandarin was superior over word recognition. Conclusions Considerable plasticity in the cerebral auditory center is preserved, despite long acoustic deprivation in some children who have received unilateral cochlear implant. Delayed second implants can result in significant improvements in some of these children. Visual interference from lip-reading may be an obstacle during retraining. The better recognition of tones in the Mandarin language may represent a different sound discrimination mechanism in the auditory system, although it may also be related to the signal processing mechanisms of the implant used (MED-EL COMBI 40+). | XIA Rui-ming1, WU Xi-hong2, JANG Zi-gang1, JING Yuan-yuan1, LIN Yun-juan1, YU Li-sheng1 1. Department of Otolaryngology, People’s Hospital, Peking University, P. R. China 11, Xizhimen South St, 100044 Beijing, P.R. China 2. Speech and Hearing Research Center, Peking University, China R.M. Xia, X.H. Wu, Z.G. Jang, Y.Y. Jing, Y.J. Lin, L.S.Yu | 2006 | Journal of Otology2006，1，2： | 2 |
| 15 | Studies on polyhaloalkanes Ⅱ.A facile method for mono-fluorination of α,ω-dihaloperfluoroalkanes显示文摘A faeilo monofluorination of α,ω-dihaloporfluoroalkanes was achieved by the reactionof them with antimony trifluoride and chlorine in anhydrous antimony pentachloride when mono-fluorinated products wero removed immediately after their formation from the reaction mixture byfractionation.The reaction conditions were also investigated. | HUANG,Bing-Nan PRESCHER,Dietrich Shanghai Institute of Organic Chemistry,Chinese Aeademy of Sciences,Shanghai 200032 Part Ⅰ of this series:Chin.J.Chem.,11,169(1993).On leave from Central Institute of Organic Chemistry,Berlin 0-1199,Germany. | 1993 | Chinese Journal of Chemistry1993，11，2： | 2 |
| 16 | Global Classical Solutions to Partially Dissipative Quasilinear Hyperbolic Systems显示文摘The author considers the Cauchy problem for quasilinear inhomogeneous hyperbolic systems.Under the assumption that the system is weakly dissipative,Hanouzet and Natalini established the global existence of smooth solutions for small initial data (in Arch.Rational Mech.Anal.,Vol.169,2003,pp.89-117).The aim of this paper is to give a completely different proof of this result with slightly different assumptions. | Yi ZHOU 11 Key Laboratory of Mathematics for Nonlinear Sciences,Ministry of Education,China Shanghai Key Laboratory for Contemporary Applied Mathematics School of Mathematical Sciences,Fudan University,Shanghai 200433,China. | 2011 | Chinese Annals of Mathematics,Series B2011，32，5： | 2 |
| 17 | Types of Organic Fades and Source Rock Assessment of the Coal-Measure Mudstone in the Turpan-Hami Basin显示文摘This paper discusses the enviromental characteristics of carbonaceous mudstone and mudstone (coal-measure mudstone in short) of the Early and Middle Jurassic in the Turpan-Hami basin, which were formed in swamps. Through the organic facies study of the coal-measure mudstone in this area, the authors clarify that the flowing-water swamp is the most advanced organic facies belt. Furthermore, according to the practical materials of coal-measure mudstone in the area and with the evaluation criteria of lacustrine mudstone in the past, the authors have established the integrated symbol systems from the abundance of organic matter and the type of organic matter, which can be used in the source rock evaluation of the coal-measure mudstone. | ZHAO Changyi, DU Meili, SHAO Longyi, CHEN Jianping,CHENG Kerning and HE ZhonghuaResearch Institute of Petroleum Exploration and Development,China National Petroleum Corporation, 20 Xueyuan Rd., Beijing 100083Beijing Graduate School of China University of Mining and Technology,11 Xueyuan Rd., Beijing 100083 | 1998 | Acta Geologica Sinica(English Edition)1998，72，2： | 2 |
| 18 | 加强法治建设是首都维稳工作的重要途径显示文摘维稳越来越成为地方政府的重要任务。针对首都维稳呈现的重人治轻法治的现象,提出必须加强法治建设才能实现彻底维稳。建议采取强化立法、完善行政法律解释体系、强化监督、对疑难信访案件公信听证等措施,推进法治以预防和化解矛盾,实现法治状态下的长期稳定。 | 北京市第38期中青年干部培训一班第11研修小组 王德道 | 2011 | 北京行政学院学报2011，，4： | 2 |
| 19 | Effects of Astragdus Extract on Atherosis显示文摘 | Jing-Fang ZHANG~1 Guang-Hao WANG~2 Xue-Qin YANG~11(Medical College in Occupation and Technical College of Jingmen,Jingmen 448000,China)2(The Second People Hospital of Jingmen, Jingmen 448000,China) | 2005 | 生物医学工程学杂志2005，22，S1： | 2 |
| 20 | CALCULATION OF THE EXCHANGE INTERACTION CONSTANT BETWEEN RARE-EARTH AND TRANSITION METAL SUBLATTICESIN R_2Fe_(17_x)Al_x(R=Tb, Gd AND Dy)COMPOUNDS显示文摘An approximate calculation of the exchange interaction constant JRT between therore-earth sublattice and the transition metal sublattice in R2Fe17-xAlx (R=Tb, Gd,and Dy) compounds is given by the molecular-field model and the results of neutrondiffraction. The calculated values, -JR,T/k, for Dy2Fe17-xAlx (x=5, 6, 7 and 8),Tb2Fe10Al7, Gd2Fe17-xAlx (x=7, 8) compounds are 8.62K, 8.64K, 9.52K, 10.34Kand 10.66K, 10.65K, and 9.85K, respectively, they are in agreement with the ex-perimental values, -JR,T/k, of Dy2Fe17-xAlx (x=5, 6, 7 and 8), Tb2Fe10Al7 andGd2Fe17-xAlx (x=7, 8) compounds, which are 8.77K, 9.25K, 10.1K, 10.9K and10.35K, 10.1K, and 10.3K, respectively. The origins of the difference between thecalculated and the experimental results are discussed. | Y.M.Hao,C.X.Cui,Y.Gao,W.P.Zhao and J.S.MengDepartment of Physics, Tianjin Normal University, Tianjin 300074, China School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China Manuscript received 11 September 2001 in | 2002 | Acta Metallurgica Sinica(English Letters)2002，15，4： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员