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| 1 | Epoxy asphalt concrete paving on the deck of long-span steel bridges显示文摘It is the first systematic research in the world on the composition design of epoxy asphalt concrete as pav- ing material. Material characteristics and service perform- ance of mixture, fatigue resistance characteristics of epoxy asphalt concrete by the fatigue test of complex beam have also been described. This research indicates that epoxy as-phalt concrete is a good type of paving material. Research results have been applied successfully in the paving of steel deck of the Second Nanjing Yangtze River Bridge (SNYRB). It provides a new paving type for long-span steel bridges of China and has a bright application prospect. | HUANG Wei, QIAN Zhendong, CHEN Gang & YANG Jun Transportation College, Southeast University, Nanjing 210096, China Correspondence should be addressed to Huang Wei (e-mail: hwei@ seu.edu.cn) | 2003 | Chinese Science Bulletin2003，48，21： | 47 |
| 2 | Interface and properties of epoxy resin modified by elastomeric nano-particles显示文摘Study on a new composite of epoxy resin/elastomeric nano-particles (ENP) is re- ported in this paper, which shows that, in comparison with pure epoxy resin and epoxy toughened with CTBN, the composites of epoxy resin/carboxylic nitrile-butadiene ENP and epoxy resin/styrene butadiene vinyl-pyridine ENP possess both higher toughness and heat resistance. Both ENPs used in the study have an average size of less than 100 nm. Study on the epoxy network’s morphology and interface properties suggests that due to the chemical reaction be- tween ENP and epoxy resin and more hydrogen bonds between nitrile groups of the rubber and hydroxyl groups of the epoxy resin, stronger interaction at the larger interface may lead to the observed excellent properties of the epoxy resin toughened with ENP. | HUANG Fan1, LIU Yiqun1, ZHANG Xiaohong1, GAO Jianming1, SONG Zhihai1, TANG Banghui1, WEI Genshuan2 & QIAO Jinliang1 1. SINOPEC Beijing Research Institute of Chemical Industry, Beijing 100013, China 2. Institute of Applied Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100080, China Correspondence should be addressed to Qiao Jinliang (email: jqiao@brici.ac.cn.) | 2005 | Science China Chemistry2005，48，2： | 9 |
| 3 | A numerical investigation of the evolution of 2-D disturbances in hypersonic boundary layers and the effect on the flow structure due to the existence of shocklets显示文摘 | CAO Wei & ZHOU Heng Department of Mechanics,Tianjin University Liu Hui Center of Applied Mathematics,Nankai and Tianjin University,Tianjin 300072,China Correspondence should be addressed to Zhou Heng(email:hzhou 1 @ tju.edu.cn) | 2004 | Science China(Physics,Mechanics & Astronomy)2004，47，2： | 4 |
| 4 | NANOSCALE PROCESS ENGINEERING显示文摘The research of nanoscale process engineering (NPE) is based on the interdisciplinary nature of nano-scale science and technology. It mainly deals with transformation of materials and energy into nanostructured materials and nanodevices, and synergizes the multidisciplinary convergence between materials science and technology, bio-technology, and information technology. The core technologies of NPE concern all aspects of nanodevice construction and operation, such as manufacture of nanomaterials by design? concepts and design of nanoarchitectures, and manufacture and control of customizable nanodevices. Two main targets of NPE at present are focused on nanoscale manufacture and concept design of nanodevices. The research progress of nanoscale manufacturing processes focused on creating nanostructures and assembling them into nanosystems and larger scale architectures has built the interdis-cipline of NPE. The concepts and design of smart, multi-functional, environmentally compatible and customizable nan-odevice prototypes built from the nanostructured systems of nanocrystalline, nanoporous and microemulsion systems are most challenging tasks of NPE. The development of NPE may also impel us to consider the curriculum and educa-tional reform of chemical engineering in universities. | Qixiang Wang* and Fei Wei Department of Chemical Engineering, Tsinghua University, Beijing 100084, P. R. China *Author to whom correspondence should be addressed. Tel: 0086-10-62784468, E-mail: wangqixiang@tsinghua.org.cn | 2003 | China Particuology2003，1，5： | 3 |
| 5 | Langmuir-Blodgett Films from Schiff Base Aluminium (Ⅲ) Complex显示文摘The characteristics of the LB films of Schiff base aluminium( Ⅲ ), tris(2-hydroxy-5-nitro N-dodecyl-benzylideneaminato) aluminium ( Ⅲ ) [Al (TA 12) 3], were studied. The surface pres sure-area(r-A) isotherm of Al(TA12)3 in the pure water subphase was investigated. The molec ular area, 0.48 nm2, is one-third of the expected value that indicates the formation of an aggre gate. The Langmuir-Blodgett (LB) films of Al(TA12) 3 were transferred and characterized. The UV-Vis spectra and the AFM image both confirmed that the J-aggregates formed. The polarized UV-Vis spectra indicated that the complex plane had to be oriented with an angle of about 30° to the substrate surface. The IR spectra suggested that the complexation took place between aluminium ions and the oxygen atoms of the ligand rather than the nitrogen atom. | LIAN Wei~1, CAO Wei~2, WANG Gang~2, WEI Li~2, HONG Xia~2, SHEN Dong-fang~2 LIU Chun-yan~1, SHAO Hui-bo~(3**) and BAI Yu-bai~2(1. Institute of Photographic Chemistry, Chinese Academy of Sciences, Beijing 100101, P. R. China 2. Center for Intelligent Materials United Research(CIMUR), Department of Chemistry, Jilin University, Changchun 130023, P. R. China 3. Department of Chemistry, Capital Normal University, Beijing 100037, P. R. China) To whom correspondence should be addressed. | 2001 | Chemical Research in Chinese Universities2001，17，3： | 2 |
| 6 | Photocatalytic degradation kinetics of Rhodamine B cata- lyzed by nanosized TiO_2 film显示文摘A fixed bed photocatalytic reactor was de-signed, and dynamic fast scan of UV-Vis adsorption spec-trum was adopted to study the photocatalytic degradation dynamic behavior of Rhodamine B, a kind of dye generally recognized as to be degraded difficultly, on the surface of nanosized TiO2 thin film. The results indicate that the photocatalytic degradation process of Rhodamine B does not comply with the first-order reaction kinetic process. As a result, a kinetic model of Rhodamine B photocatalytic deg-radation reaction is brought forward, and the model is proved by the theoretical deduction and experiment. | WEI Gang, ZHANG Yuanjing & XIONG Rongchun College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China Correspondence should be addressed to Xiong Rongchun (e-mail: xiongrongchun@263.net) | 2003 | Chinese Science Bulletin2003，48，1： | 2 |
| 7 | Cloning and expressional analyses of a cinnamoyl CoA reductase cDNA from rice seedlings显示文摘Cinnamoyl CoA reductase (CCR: EC 1.2.1.44), the entry-point enzyme of the lignin specific biosynthetic pathway, catalyzes the conversion of cinnamoyl CoA esters to their corresponding cinnamaldehydes. Multiple sequence alignment showed that the deduced polypeptide shared 70% similarity and 30% sequence identity at the amino acid level with defined CCR genes from other plant species and they all contain the common signature sequences thought to be the catalytic site as well as the putative NADP binding domain. Using a conserved OsCCR cDNA fragment as the probe for library screening, we isolated the genomic DNA that covered the whole coding region of OsCCR with total length of 3045 bp including 4 introns and 5 exons. The open reading frame for our OsCCR gene contains 337 amino acids. Northern blot indicated that OsCCR was expressed in different organs with the highest level found in stems. In situ hybridization results showed that OsCCR mRNA was localized mainly along the vascular bundles in stems and leaves, and also in lateral roots that was differentiating from the tillering node. We conclude that the vascular-localized expression of OsCCR gene may suggest its possible involvement in lignin biosynthesis. Cloning and characterization of OsCCR will help to clarify how lignifications in plants are regulated and will provide a physical basis for creating genetically engineered rice plants with optimal lignin contents. | BAI Yong, GONG Wei, LIU Tianyun & ZHU Yuxian College of Life Sciences, Peking University, Beijng 100871, China Correspondence should be addressed to Zhu Yuxian (e-mail: zhuyx@ water.pku.edu.cn) | 2003 | Chinese Science Bulletin2003，48，20： | 2 |
| 8 | Differential rotation of geomagnetic field显示文摘The latitudinal dependence of the westward drift in the main geomagnetic field is examined by using the correlation analysis of moving random pattern. The study reveals the characteristics in the differential rotation of the main field. The results show that the global geomagnetic field drifts westward with an average speed of 0.18/a during 1900—2000. The westward drift rate is not symmetrical with re-spect to the equator. The maximum westward drift rate, 0.31/a, occurs at the latitude j = -15? forming a Rapid Westward Drift Belt (RDB) around this latitude. Going northward and southward from this belt, the drift rate de-creases and reaches the minimum (0.12/a) at j = 50?and the minimum (0.14/a) at j = -56? forming a Northern Hemi-sphere Slow Westward Drift Belt (N-SDB) and a Southern Hemisphere Slow Westward Drift Belt (S-SDB). Three phases can be detected in the evolution of the westward drift. In the first phase (1900—1940), the RDB dominates the global drift pattern. The westward drifts in this belt are much faster than those in other areas. In the second phase (1940—1960), the drift rates in the RDB are less than those in the first phase, while the drifts in the N-SDB and S-SDB are relatively large. In this phase, the differential rotation becomes less obvious. In the third phase (1960—2000), the westward drift in the RDB increases again and the differen-tial rotation gradually becomes apparent. | WEI Zigang & XU Wenyao Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China Correspondence should be addressed to Wei Zigang (e-mail: magstorm @mail.igcas.ac.cn) | 2003 | Chinese Science Bulletin2003，48，24： | 2 |
| 9 | Zeolite-Catalyzed Friedel-Crafts Acylation of Aromatics.Ⅳ.Nature of the Active Sites of Zeolites显示文摘Zeolite-CatalyzedFriedel-CraftsAcylation ofAromatics.Ⅳ.NatureoftheActiveSitesofZeolitesZeolite-CatalyzedFriedel-CraftsAcylati... | Yu Dao MA Qi Long WANG Wei JIANG Be Jun ZUO and Qin QIU(Department of Chemistry,Shandong University,Jinan 250100.)(Department of Environmental Engineering, Shandong University,Jinan 250100.) | 1996 | Chinese Chemical Letters1996，7，9： | 2 |
| 10 | Tectonic evolvement of metamorphic complexes at Jilin paleocontinental margin during the transition from late Archaean to early Proterozoic显示文摘The kinematics and dynamical process of tectonic evolvement of metamorphic complexes at the interim from late Archaean to early Proterozoic is one of the key problems in geosciences. For the disputation on the genesis of metamorphic complexes at the margin of Jilin palaeocontinent, this paper takes the example of Banshigou region, Jilin Province to discuss the dynamical evolution of palaeocontinent during the transition from late Archaean to early Pro- terozoic (2600—2000 Ma). On the time sequence, from center to palaeocontinental margin, it shows a series of dynamical movements including underplating, horizontal movement, subduc- tion, intraplate extension and separation. And its corresponding sequence of kinematical modes is as follows: vertical movement, horizontal movement, extension and shearing in contact zone, uplift-sliding movement in paleocontinental margin and interformational sliding, resulting in such tectonite sequence, tectonic gneiss, gneissic complex, gneissic complex-mylonite, mylonite and fracture cleavage-mylonite, which consist of the main body of metamorphic complexes. Their palaeostresses are: < 20, 20.40, 21.72, 28.80 and 30.8-69.8 MPa respectively. The deforma- tional metamorphic temperature is between hornblende and low-grade greenschist facies. The general deformational characters of Jilin palaeocontinent reflect a complete dynamic system of crust evolution, which indicates that the formation of the metamorphic complexes and the tec- tonic evolution are altered from vertical movement to compression to extension. It also indicates a continuous tectonic transformation from deep to shallow, and from ductile to brittle. The trans- formation between different dynamic mechanisms not only forms tectonic rocks, but also benefits the linking up, exchange and enrichment with rock-forming minerals and ore-forming elements. This research is helpful to classifying regional tectonic events and making further study on the evolution of palaeocontinental dynamics. | SUN Zhongshi1,DENG Jun2,JIANG Yanguo3,WANG Jianping2,WANG Qingfei2 & WEI Yanguang2 1.Department of Earth Sciences,Jilin University,Changchun 130061,China 2.Department of Geosciences and Mineral Resources,China University of Geosciences,Beijing 100083,China 3.Weihai Gold Institute,Shandong Weihai Gold Bureau,Weihai 264205,China Correspondence should be addressed to Sun Zhongshi(email: sunzs219@163.com) | 2004 | Science China Earth Sciences2004，47，11： | 2 |
| 11 | Synthesis and magnetic properties of one-dimensional Mn(Ⅱ)complexes linked by dithiooxalato显示文摘Three dithiooxalato (Dto) bridging one-dimensional Mn(Ⅱ) complexes [Mn(L)Dto](L = Phen (1), Bpy (2) and en (3)) were synthesized. All of the complexes have the similar one-dimensional structure through Dto bridge. The measurement of the variable temperature magnetic susceptibility of complex 1 showed that there are weak antiferromag- netic interactions between the Mn(Ⅱ) ions. | CUI Jianzhong, SHI Wei, CHENG Peng, CHEN Xufang, LIAO Daizheng, YAN Shiping, JIANG Zonghui & WANG GenglinDepartment of Chemistry, Nankai University, Tianjin 300071, China Correspondence should be addressed to Cheng Peng (e-mail: pcheng@ nankai.edu.cn) | 2003 | Chinese Science Bulletin2003，48，9： | 2 |
| 12 | Fed up with fat tubes显示文摘 | CHALAMALA BR WEI Y GNADE BE | 1998 | IEEESpectrum1998，35，4： | 1 |
| 13 | An implicit Landweber method for nonlinear ill-posed operator equations显示文摘 | WANG Wei HAN Be | 2009 | Journal of Computational and Ap- plied Mathematics2009，230，2： | 1 |
| 14 | A motoneuron-selective stop signal in the synaptic protein S-laminin显示文摘 | Porter BE Weis J Sanes JR | 1995 | Neuron1995，14，3： | 1 |
| 15 | A motoneuron-selective stop signal in the synaptic protein S-laminin显示文摘 | Porter BE Weis J Sanes JR | 1995 | Neuron1995，14，3： | 1 |
| 16 | Development and validation of a sensitive LC-MS method for the determination of p-(1-dimethyl amino ethylimino)aniline-a metabolite of tribendimidine in human plasma显示文摘 | Yuan G Wang Be Wei C | | 0，，1： | 1 |
| 17 | Silencing of potato virus X coat protein gene in transgenic tobaccos by codon replacement that confers resistance to PVX infection显示文摘To understand the effect of rare codon on the silencing ratio of foreign gene, some preferred codon in potato virus X (PVX) coat protein gene (cp) were substituted with synonymous rare codons. The modified PVX coat protein gene (cpm) and wild-type cp gene (cpw) were inserted into binary vector under the control of CaMV35S promoter, and these two plant expression constructs were transferred into tobacco (Nicotiana tabacum cv. Xanthi) genomes via Agrobacterium mediated method and transgenic plants were generated. Northern blot analysis of RNA isolated from these plants showed that the silencing ratio of cpm gene in transgenic tobaccos was higher than that of cpw (35% and 6.25% respectively). Run on results indicate that the silencing of cp gene happened at post-transcriptional level. The resistance of transgenic tobaccos carrying cpm genes to PVX is increased compared with that of transformants carrying cpw genes. These results suggest that the resistance of transgenic tobacco to PVX can be enhanced by codon replacement. | FENG Dejiang*, LIU Xiang*, MENG Kun, LIAO Lili, WEI Xiaoli, XU Honglin & ZHU Zhen Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China * The authors contributed equally to this report. Correspondence should be addressed to Zhu Zhen (e-mail: zzhu@ genetics.ac.cn) | 2003 | Chinese Science Bulletin2003，48，15： | 1 |
| 18 | Weighted K-shell decomposition for complex networks based on potential edge weights显示文摘 | Wei Be Liu Jie Wei Daijun | 2015 | Physica A2015，420，2015： | 1 |
| 19 | Study on intracellular trafficking of Mac-1 by direct visualization显示文摘Previously, we constructed DNA vectors containing cDNA of Mac-1 subunits (CD11b or CD18b) fused with fluorescence protein (FP). cDNA fragments and the DNA constructs were then transfected into CHO cells (as CHO-Mac-1-FP). The structure and function of Mac-1-FP obtained from the CHO-Mac-1-FP cells are nearly identical to that expressed in wild type leuko- cytes. In the present study, the intracellular trafficking of Mac-1 was visualized directly by moni- toring the fluorescent intensities of YFP-CD18 and PE-conjugated monoclonal antibody against CD11b under a confocal microscope in CHO-Mac-1-FP cells. The results indicate that: (ⅰ) al- though Mac-1 was not detected in the cell membrane at resting state, it had been translocated and clustered into the cell membrane by 1 h and internalized 2 h after PMA stimulation, at which point the fluorescence intensity began to diminish gradually, probably due to partial degradation of Mac-1. The fluorescence of CD18 and CD11b reappeared on the cell membrane 1 h after re-treatment with PMA, suggesting the recycling of non-degraded Mac-1. (ⅱ) The adhesion rate of CHO-Mac-1-FP to magnetic beads coupled ICAM-1 increased within 4 h after their initial in- teraction, accompanied by the clustering of Mac-1-FP. After 8 h,the adhesion rate declined and fluorescence also decreased simultaneously. The pattern of change in fluorescence in CHO-Mac-1-FP cells elicited by ICAM-1 beads was similar to that elicited by PMA, suggesting that endocytosis and degradation of Mac-1 occurred after the interaction with ICAM-1. Thus, we conclude that the intracellular trafficking of Mac-1 after activation is associated with membrane translocation, endocytosis, degradation and recycling. These changes are in parallel with the adhesion of CHO-Mac-1-FP cells with ICAM-1, and may be involved in the adhesion and de- tachment of leukocytes. The detachment of leukocytes may be caused by endocytosis of Mac-1. | YAN Ming1, MAO Jifang2, WEI Yi3, ZHONG Jigen1, YANG Shengsheng2 & XU Renbao1 1. Department of Pathophysiology, Second Military Medical University, Shanghai 200433, China 2. Department of Biochemistry and Molecular Biology, Second Military Medical University, Shanghai 200433, China 3. Biological Science School, Fudan University, Shanghai 200433, China Correspondence should be addressed to Yan Ming | 2004 | Science China(Life Sciences)2004，47，6： | 1 |
| 20 | Sonography and sonographically gui- ded needle biopsy of internal mammary nodes in staging of patients with breast cancer显示文摘 | Dogan BE Dryden MJ Wei W | 2015 | A JR Am J Roentgeno12015，205，4： | 1 |
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