|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Geodynamic significance of the A-type granites in the Sawuer region in west Junggar, Xinjiang: Rock geochemistry and SHRIMP zircon age evidence显示文摘Sawuer region is located in west Junggar, Jimunai County of Altay district and Hefeng County of Tacheng district, Xinjiang. The region is along the north margin of Kazakstan-Junggar plate. The intrusions (mainly acid) are widespread. Qiaqihai and Kuoyitasi intrusions are important in the region, with the characteristics of A-type granite. Further investigations indicate that they belong to A2-type granite that formed in extension tectonic setting of post collision. The REE chon-drite-normalized patterns of the intrusions show LREE enrichment and the δ Eu values are lower. The Nd, Sr, Pb isotope compositions of the intrusions indicate a mantle source, while the low δ 18O values resulted from the isotope exchange between intrusion and meteoric water. According to SHRIMP U-Pb age analysis results, the crystallization age of Qiaqihai intrusion is 290.7 ± 9.3 Ma (1σ ), and that of Kuoyitasi intrusion is 297.9 ± 4.6 Ma (1σ ), corresponding to the beginning of early Permian. The A2-type granites indicate that the region was in the extension period of the post-collisional stage at the beginning of early Permian in the Sawuer region. The A-type granites in the Sawuer region in west Junggar discovered from this work is analogous to the A-type granites found in east Junggar of the Ulungur alkali granites belt. The confirmation of post-collisional A-type granites of early Permian in the Sawuer region provides new evidence for the regional vertical continental crust growth in early Per-mian. The former proposed Ulungur alkali granites belt can extend from east Ulungur through west Ulungur and to Zhaisang in Kazakstan westwards. | ZHOU Taofa1, YUAN Feng1, TAN Lugui1,2, FAN Yu1 & YUE Shucang1 1. School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China 2. Department of Geography and Environment Science, Wanxi College, Liuan 237012, China | 2006 | Science China Earth Sciences2006，49，2： | 42 |
| 2 | 深水人工湖环境生物地球化学过程研究:以贵州红枫湖-百花湖为例显示文摘红枫湖和百花湖地处长江支流乌江水系猫跳河流域,位于黔中人为活动高强度地区,具低纬度-高海拔的地理区位;是河道型梯级开发的人工湖,具碳酸盐岩的地质背景、水寄宿时间小、水深变幅大、水体多功能、农区与覆水区镶嵌等重要特征。红枫湖表层沉积物Pb稳定同位素组成表明其污染具多源特征;剖析百花湖-红枫湖'突发性'水质恶化相互关联水质指标表明'湖泊黑潮'是特定季节、特殊气候条件下,沉积有机质生物氧化作用的耦合;脱氮过程受阻的pH控制导致亚硝酸根浓度增高;维护该湖泊水系环境质量需预防工业污染、流域侵蚀、生活污染并综合治理湖区。 | 万国江 万恩源 陈敬安 WanXi BaiZG 吴丰昌 王仕禄 王敬富 | 2010 | 地球与环境2010，38，3： | 25 |
| 3 | Water Soluble C_(60)-Liposome and the Biological Effect of C_(60) to Human Cervix Cancer Cells显示文摘A preparative technique to obtain water soluble C_(60)-liposome by means of molecular package of C_(60) with lecithin has been established.The concentration of C_(60) presented in liposome is 1.09 x 10-4mol/dm3.The molecular system of C_(60)-liposome with human cervix cancer cells is irradiated with laser(570nm,800mW),there is obvious biological effect of C_(60) to huma cervix cancer cells. | LI Wenzhu QIAN Kaixian HUANG Wendong ZHANG Xinxin CHEN Wanxi | 1994 | Chinese Physics Letters1994，11，4： | 9 |
| 4 | Thermo-flow characteristics and air flow field leading of the air-cooled condenser cell in a power plant显示文摘Special A-frame geometry of the air-cooled condenser cell and the complicated flow field at the exit of the axial flow fan bring on the air mal-distribution on the surface of the finned tube bundles and the deteriorated thermo-flow performances of a condenser cell.It is of benefit to the design and operation optimization of the direct dry cooling system in a power plant to investigate the thermo-flow characteristics of the condenser cell and propose the flow leading measures of cooling air.On the basis of the representative configuration of the air-cooled condenser cell in a 600 MW direct dry cooling power plant,the computational models of the air side fluid and heat flows are built,in which the actual fan blade geometric details are considered.Various flow field leading ways of cooling air are presented and the thermo-flow characteristics in the A-frame condenser cell and through the finned tube bundles are compared.Results show that the flow field leading measures can result in the increased volumetric flow rate and heat rejection,thus bringing on the improved performance of the condenser cell.The improvement of thermo-flow performances depends upon the geometric details of the flow guiding device. | ZHANG WanXi YANG LiJun DU XiaoZe YANG YongPing | 2011 | Science China(Technological Sciences)2011，54，9： | 8 |
| 5 | Springback Prediction and Optimization of Variable Stretch Force Trajectory in Three-dimensional Stretch Bending Process显示文摘Most of the existing studies use constant force to reduce springback while researching stretch force. However, variable stretch force can reduce springback more efficiently. The current research on springback prediction in stretch bending forming mainly focuses on artificial neural networks combined with the finite element simulation. There is a lack of springback prediction by support vector regression(SVR). In this paper, SVR is applied to predict springback in the three-dimensional stretch bending forming process, and variable stretch force trajectory is optimized. Six parameters of variable stretch force trajectory are chosen as the input parameters of the SVR model. Sixty experiments generated by design of experiments(DOE) are carried out to train and test the SVR model. The experimental results confirm that the accuracy of the SVR model is higher than that of artificial neural networks. Based on this model, an optimization algorithm of variable stretch force trajectory using particle swarm optimization(PSO) is proposed. The springback amount is used as the objective function. Changes of local thickness are applied as the criterion of forming constraints. The objection and constraints are formulated by response surface models. The precision of response surface models is examined. Six different stretch force trajectories are employed to certify springback reduction in the optimum stretch force trajectory, which can efficiently reduce springback. This research proposes a new method of springback prediction using SVR and optimizes variable stretch force trajectory to reduce springback. | TENG Fei ZHANG Wanxi LIANG Jicai GAO Song | 2015 | Chinese Journal of Mechanical Engineering2015，28，6： | 6 |
| 6 | STRESS SINGULARITY ANALYSIS AT CRACK TIP ON BI-MATERIAL INTERFACES BASED ON HAMILTONIAN PRINCIPLE显示文摘In this paper, the stress singularity analysis at the crack tip on elastic bi-material inter-faces is considered. The governing equations of plane elasticity in sectorial domain are derived to be inHamiltonian form via variable substitution and variational principle. The methods of separation ofvariables and conjugate symplectic eigen-function expansion are developed to solve the equations insectorial domain. The general formulae for the solution of stress singularities at the crack tip on bi-ma-terial interfaces are put forward, and a new solution technique for fracture problems is presented. | Zhang Hongwu Zhong Wanxie Li Yunpeng, Research Institute of Engineering Mechanics, Dalian University of Technology, Dalian 116023 | 1996 | Acta Mechanica Solida Sinica1996，9，2： | 5 |
| 7 | A Model for Loadout Analysis and Its Programming Implementation显示文摘- In this paper, the authors use the finite element method to conduct a special static analysis for the loadout procedure of offshore structures. By introducing a variable Xmove (the distance between the relative coordinate system fixed in the moving upper structure and the absolute coordinate system fixed on slideway), adopting substructure to treat the upper structure, and using the elastic foundation beam to model the slideway, the model for the analysis of the loadoul procedure is established. On the basis of this model, DASOS-J loadout program, a program system for the static analysis of loadout offshore structures, is also developed. | Zhong Wanxie , Yao Shizhong Wu Lianyuan and Xi Deyin Professor, Shanghai Jiao Tong University, 200030, Shanghai Engineer, Shanghai Jiao Tong University, 200030, Shanghai Lecturer, Shanghai Jiao Tong University. 200030, Shanghai | 1993 | China Ocean Engineering1993，8，4： | 3 |
| 8 | NUMERICAL SIMULATION OF DEFORMATION BEHAVIOR OF 22MnB5 BORON STEEL AT ELEVATED TEMPERATURES AND EXPERIMENTAL VERIFICATION显示文摘The effects of strain, strain rate and temperature on the mechanical behavior of22 Mn B5 boron steel deformed isothermally under uniaxial tension tests and the experimental characterization of 22 Mn B5 boron steel in the austenitic region have been investigated. Based on the crystal plasticity theory and thermal kinematics, an improved integration model is presented.In this model, the elastic deformation gradient is the integration variable of the governing equation,which contains not only the elastic deformation but also the thermal effects. In the coupled thermomechanical process, this model can reveal the evolution of microstructures such as the rotation of a single crystal and the slip systems in each of them. The plastic behavior of the boron steel can be well described by the presented model. | Dan Zhao Yiguo Zhu Liang Ying Ping Hu Ying Chang Wanxi Zhang | 2014 | Acta Mechanica Solida Sinica2014，27，6： | 3 |
| 9 | Phylogenetic positions of some genera and species of the family Buccinidae (Gastropoda: Mollusca) from China based on ribosomal RNA and COI sequences显示文摘A phylogenetic analysis of members of the family Buccinidae was conducted using 18S rRNA gene, 28S rRNA gene and the mitochondrial cytochrome oxidase Ⅰ gene. We studied 18 species of Buccinidae that belong to eight different genera and inhabit the China coastal seas. We analyzed the patterns of divergence between an outgroup and basal ingroup taxa, the monophyly of the genus Neptunea, and the position of one unnamed species within the Buccinidae. A phylogenetic tree (neighbor-joining (NJ) method) was reconstructed based on the sequences of 18S rRNA, 28S rRNA and COI, with Rapana venosa as outgroup. The NJ tree indicated that the 18 species could be divided into five groups. The genus Buccinum was monophyletic, whereas Neptunea was shown to be paraphyletic since it included Siphonalia subdilatata and Neptunea sp., a new species. This novel species otherwise clustered consistently with Neptunea cumingi in three other phylogenetic trees, showing a low genetic distance and divergence percentage of sequences belonging to the genus Neptunea. A smaller genetic distance and a smaller difference of 18S rRNA, 28S rRNA and COI sequences between Neptunea cumingii and Neptunea arthritica cumingii confirmed them to be the same species. | HOU Lin DAHMS Hans-Uwe DONG ChangYong CHEN YiFei HOU HaoChen YANG WanXi ZOU XiangYang | 2013 | Chinese Science Bulletin2013，58，19： | 3 |
| 10 | Sorl1 knockout inhibits expression of brain-derived neurotrophic factor:involvement in the development of late-onset Alzheimer's disease显示文摘Sortilin-related receptor 1(SORL1)is a critical gene associated with late-onset Alzheimer’s disease.SORL1 contributes to the development and progression of this neurodegenerative condition by affecting the transport and metabolism of intracellularβ-amyloid precursor protein.To better understand the underlying mechanisms of SORL1 in the pathogenesis of late-onset Alzheimer s disease,in this study,we established a mouse model of SorI1 gene knockout using cluste red regularly inters paced short palindro mic repeats-associated protein 9 technology.We found that Sorl1-knocko ut mice displayed deficits in learning and memory.Furthermore,the expression of brain-derived neurotrophic factor was significantly downregulated in the hippocampus and co rtex,and amyloidβ-protein deposits were observed in the brains of 5orl1-knockout mice.In vitro,hippocampal neuronal cell synapses from homozygous Sorl1-knockout mice were impaired.The expression of synaptic proteins,including Drebrin and NR2B,was significantly reduced,and also their colocalization.Additionally,by knocking out the Sorl1 gene in N2a cells,we found that expression of the N-methyl-D-aspartate receptor,NR2B,and cyclic adenosine monophosphate-response element binding protein was also inhibited.These findings suggest that SORL1 participates in the pathogenesis of late-onset Alzheimer s disease by regulating the N-methyl-D-aspartate receptor NR2B/cyclic adenosine monophosphate-response element binding protein signaling axis. | Mingri Zhao Xun Chen Jiangfeng Liu Yanjin Feng Chen Wang Ting Xu Wanxi Liu Xionghao Liu Mujun Liu Deren Hou | 2024 | Neural Regeneration Research2024，19，7： | 2 |
| 11 | Constrained Hamilton variational principle for shallow water problems and Zu-class symplectic algorithm显示文摘In this paper, the shallow water problem is discussed. By treating the incompressible condition as the constraint, a constrained Hamilton variational principle is presented for the shallow water problem. Based on the constrained Hamilton variational principle, a shallow water equation based on displacement and pressure(SWE-DP)is developed. A hybrid numerical method combining the finite element method for spatial discretization and the Zu-class method for time integration is created for the SWEDP. The correctness of the proposed SWE-DP is verified by numerical comparisons with two existing shallow water equations(SWEs). The effectiveness of the hybrid numerical method proposed for the SWE-DP is also verified by numerical experiments. Moreover,the numerical experiments demonstrate that the Zu-class method shows excellent performance with respect to simulating the long time evolution of the shallow water. | Feng WU Wanxie ZHONG | 2016 | Applied Mathematics and Mechanics(English Edition)2016，37，1： | 2 |
| 12 | Dynamic Finite Element Analysis for Interaction between Two Phase Saturated Soil Foundation and Platform显示文摘In this paper, the foundation soil of offshore structure is simulated as a two phase saturated porous medium. The dynamic equations of porous medium and finite element formulation are given. For structural analysis, the technique of multilevel substructure is used, and the saturated soil analysis is set in the highest level substructure model. Based on these theories a dynamic finite element analysis program DIASS for the analysis of interaction between two phase ocean soil foundation and platform structures has been developed. A numerical example is given here to illustrate the influence of the pore water in soil on the structural response of an ocean platform. | Qian, Lingxi Zhong, Wanxie Zhang, Hongwu | 1993 | China Ocean Engineering1993，8，1： | 2 |
| 13 | The effect of p2-agonistpatch(especially tulobuterol) 显示文摘 | TIANCH WANXY BILY | 2003 | 日本医学介绍2003，24，10： | 1 |
| 14 | On precise integration method 显示文摘 | Wanxie Zhong | 2004 | Journal of Computational and Applied Mathematics2004，163，1： | 1 |
| 15 | A finite element method for elastoplastic structure and contact problem by parametric quadratic programming显示文摘 | Zhong Wanxie Sun Suming | 1998 | Int J Numer Meth Engng1998，26，： | 1 |
| 16 | Review of a high-efficiency algorithm series for structural responses显示文摘 | ZHONG Wanxie | 1996 | Progress in Natural Science1996，6，3： | 1 |
| 17 | Photoconductivity of fullerene-doped zinc phthalocyanine显示文摘 | Zhude Xu Wanxi Chen Yongjun Leng Xiaoping Xu Wenzhu Li Mang Wang | 1995 | Journal of Materials Science Letters1995，，14： | 1 |
| 18 | A Finite Strip Method in Hamiltonian Formulation显示文摘 | Huajiang O Wanxie Z | | 0，，02： | 1 |
| 19 | Carbon dioxide/propylene oxide coupling reaction catalyzed by chro mium salen complexes显示文摘 | Niu Yongsheng Zhang Wanxi Li Hongchun | 2009 | Polymer2009，50，2： | 1 |
| 20 | Molecular cloning and characterization of KIFC1 like kinesin gene (es-KIFC1) in the testis of the Chinese mitten crab Eriocheir sinens s显示文摘 | Wang Dahui Yang Wanxi | 2010 | Comp Bioch Phys Part A2010，157，2： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员