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2015年SCI收录

1
标题: Fitting -crystalline structure onto electron microscopy based on SO(3) rotation group theory
作者: Li, BB; Zhao, ZH; Shen, X; Xue, CD; Zhong, LW
来源出版物: JOURNAL OF COMBINATORIAL OPTIMIZATION  : 30  : 4  特刊: SI  : 906-919  DOI: 10.1007/s10878-015-9858-x  出版年: NOV 2015
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
使用次数 (最近 180 ): 1
使用次数 (2013 年至今): 1
引用的参考文献数: 27
摘要: Based on SO(3) rotation group theory, a method is presented to fit -crystalline structure on to its corresponding electron microscopy (EM) model for the further diagnosis of crystalline disease. Taken EM model as a kind of -crystalline model rotation deformation, image processing techniques are firstly preformed and then mesh generation adopted on the obtained EM, depending upon its molecular features. Secondly, rigid-body fitting is performed to fit -crystalline Protein Data Bank (PDB) data onto its EM by using SO(3) rotation group theory. Among the fitting process, FFT is adopted to tackle the problems of large data and high computation. The PDB file is obtained from NCBI and EM file obtained from EMBL-EBI. All of the tools are developed by CVC, ICES, the University of Texas at Austin. The experimental results show that it's a precise and efficient method of fitting -crystalline PDB crystal structure onto its EM model.
入藏号: WOS:000363033600006
语种: English
文献类型: Article
作者关键词: alpha beta-Crystalline; SO(3) rotation group; FFT; Electron microscopy; Fitting
KeyWords Plus: CRYO-EM STRUCTURE; RIBOSOME; COMPLEX
地址: [Li, Beibei] Shanghai Second Polytech Univ, Sch Engn, Shanghai 201209, Peoples R China.
[Li, Beibei; Zhao, Zhihong] Univ Texas Austin, Inst Computat Engn & Sci, Ctr Computat Visualizat, Austin, TX 78712 USA.
[Zhao, Zhihong] Nanjing Inst Ind Technol, Sch Energy & Elect Engn, Nanjing 210023, Jiangsu, Peoples R China.
[Shen, Xuan] Dalian Univ Technol, Sch Software Technol, Dalian 116024, Peoples R China.
[Xue, Cendi] Southwest Jiaotong Univ, Sch Publ Adm, Chengdu 61003, Peoples R China.
[Zhong, Liwei] Shanghai Jiao Tong Univ, Sch Med, Shanghai Gen Hosp, Shanghai 200080, Peoples R China.
[Zhong, Liwei] Shanghai Univ, Dept Math, Shanghai 200444, Peoples R China.
通讯作者地址: Zhong, LW (通讯作者),Shanghai Jiao Tong Univ, Sch Med, Shanghai Gen Hosp, Shanghai 200080, Peoples R China.
电子邮件地址: bbli@sspu.edu.cn; zhaozh@niit.edu.cn; samamu@163.com; shiyivolunteer@163.com; zhongliwei19720311@163.com
出版商: SPRINGER
出版商地址: VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
Web of Science 类别: Computer Science, Interdisciplinary Applications; Mathematics, Applied
研究方向: Computer Science; Mathematics
IDS : CT7ZD
ISSN: 1382-6905
eISSN: 1573-2886
29 字符的来源出版物名称缩写: J COMB OPTIM
ISO 来源出版物缩写: J. Comb. Optim.
来源出版物页码计数: 14
基金资助致谢:
基金资助机构 授权号
Leading Academic Discipline Project of Communication and Information System of Shanghai Second Polytechnic University Grant XXKZD1302
School of Medicine, Shanghai General Hospital, Shanghai Jiaotong University 71371120
This work is partially supported by the Leading Academic Discipline Project of Communication and Information System of Shanghai Second Polytechnic University Grant (No. XXKZD1302) and Study of the operational mechanism and its optimization of resource management in surgical operations of School of Medicine, Shanghai General Hospital, Shanghai Jiaotong University (No. 71371120).
2 条,共 8
标题: Multi-objective morphology optimization of free-form cable-braced grid shells
作者: Feng, RQ; Zhang, LL; Ge, JM
来源出版物: INTERNATIONAL JOURNAL OF STEEL STRUCTURES  : 15  : 3  : 681-691  DOI: 10.1007/s13296-015-9014-6  出版年: SEP 2015
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
使用次数 (最近 180 ): 0
使用次数 (2013 年至今): 0
引用的参考文献数: 17
摘要: This paper examines the multi-objective morphology optimization of free-form cable-braced grid shells. First, according to the shape forming method for grid shells, shape optimization can be realized by adjusting the generatrix and directrix rather than optimizing the whole surface. Second, the multi-objective shape optimization of free-form cable-braced grid shells is conducted. According to different practical requirements, the mechanical and geometric indexes, mechanical and economic indexes, or different mechanical indexes are used as multiple optimization objectives. Four main conclusions can be drawn from this study. First, with the above shape optimization method, the optimized surface does not change significantly; therefore, this method is useful in the shape optimization of grid shells with given initial surfaces. Second, among the static mechanical performance indexes, the mechanical behavior of the cable-braced grid shell is better with strain energy as the optimization objective. Third, with the weight of steel tubes and strain energy as the optimization objectives, the result of the multi-objective optimization that combines section optimization with shape optimization is favorable and practical in engineering applications. Fourth, when strain energy and the variance of the tube lengths are used as multiple optimization objectives, the structural mechanical behavior is not sensitive to the weight factor of variance of the tube lengths.
入藏号: WOS:000363066400014
语种: English
文献类型: Article
作者关键词: Free-form surfaces; multi-objective optimization; grid shell; shape optimization
地址: [Feng, Ruo-qiang] Southeast Univ, Minist Educ, Key Lab Concrete & Prestressed Concrete Struct, Nanjing 210096, Jiangsu, Peoples R China.
[Feng, Ruo-qiang] S China Univ Technol, State Key Lab Subtrop Bldg Sci, Guangzhou 510500, Guangdong, Peoples R China.
[Zhang, Linlin] Nanjing Inst Ind Technol, Nanjing 210046, Jiangsu, Peoples R China.
[Ge, Jin-ming] Int Century Design Architecture, Changzhou 213000, Jiangsu, Peoples R China.
通讯作者地址: Feng, RQ (通讯作者),Southeast Univ, Minist Educ, Key Lab Concrete & Prestressed Concrete Struct, Nanjing 210096, Jiangsu, Peoples R China.
电子邮件地址: hitfeng@163.com
出版商: KOREAN SOC STEEL CONSTRUCTION-KSSC
出版商地址: 106-18 MUNJUNG-DONG, SONGPA-KU, SEOUL, 138-200, SOUTH KOREA
Web of Science 类别: Construction & Building Technology; Engineering, Civil
研究方向: Construction & Building Technology; Engineering
IDS : CT8KX
ISSN: 1598-2351
eISSN: 2093-6311
29 字符的来源出版物名称缩写: INT J STEEL STRUCT
ISO 来源出版物缩写: Int. J. Steel Struct.
来源出版物页码计数: 11
基金资助致谢:
基金资助机构 授权号
Natural Science Foundation of China 51278117

51125031

Program for New Century Excellent Talents in University NCET-13-0120
State Key Laboratory of Subtropical Building Science of South China University of Technology 2011KA05
Youth Foundation of Nanjing Institute of Industry Technology QK13-38-01
Jiang Su Provincial Natural Science Foundation of China BK2011610
Priority Academic Program Development of the Jiangsu Higher Education Institutions  
This research was financially supported by the Natural Science Foundation of China under grant numbers 51278117 and 51125031, Program for New Century Excellent Talents in University under grant number NCET-13-0120, State Key Laboratory of Subtropical Building Science of South China University of Technology under Grant No. 2011KA05, Youth Foundation of Nanjing Institute of Industry Technology under grant number QK13-38-01, the Jiang Su Provincial Natural Science Foundation of China under grant number BK2011610 and a project funded by the Priority Academic Program Development of the Jiangsu Higher Education Institutions.
3 条,共 8
标题: Single controller for stability of delayed neural networks with mixed coupling and L-2-gain condition
作者: Feng, GZ; Cao, JD
来源出版物: NEUROCOMPUTING  : 149  : 924-929  DOI: 10.1016/j.neucom.2014.07.042  子辑: B  出版年: FEB 3 2015
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
使用次数 (最近 180 ): 16
使用次数 (2013 年至今): 23
引用的参考文献数: 29
摘要: By employing Lyapunov functional method and linear matrix inequalities (LMIs), the asymptotical stability is studied for the coupled delayed neural networks. Furthermore, we presented a new neural network model including both intrinsic disturbance of single node and communication noise over the network connections. Only one controller is used for the stabilization of the neural networks in terms of LMIs, and the prescribed L-2-gain condition is satisfied. The proposed linear matrix inequality results are easy to be solved by standard commercial software. An illustrative example is given to show the effectiveness of the result. (C) 2014 Elsevier B.V. All rights reserved.
入藏号: WOS:000346550300044
语种: English
文献类型: Article
作者关键词: Asymptotical stability; Neural network; Intrinsic disturbance; Communication noise; L-2-gain condition
KeyWords Plus: TIME-VARYING DELAYS; DISTRIBUTED DELAYS; EXPONENTIAL STABILITY; SYNCHRONIZATION; SYSTEMS; DISCRETE; DYNAMICS
地址: [Feng, Guizhen] Southeast Univ, Sch Automat, Nanjing 210096, Jiangsu, Peoples R China.
[Feng, Guizhen] Nanjing Inst Ind Technol, Dept Math & Phys, Nanjing 210046, Jiangsu, Peoples R China.
[Cao, Jinde] Southeast Univ, Dept Math, Nanjing 210096, Jiangsu, Peoples R China.
[Cao, Jinde] King Abdulaziz Univ, Fac Sci, Dept Math, Jeddah 21589, Saudi Arabia.
通讯作者地址: Cao, JD (通讯作者),Southeast Univ, Dept Math, Nanjing 210096, Jiangsu, Peoples R China.
电子邮件地址: fengguizhen@gmail.com; jdcao@seu.edu.cn
作者识别号:
作者 ResearcherID ORCID
Cao, Jinde D-1482-2012 0000-0003-3133-7119
出版商: ELSEVIER SCIENCE BV
出版商地址: PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Web of Science 类别: Computer Science, Artificial Intelligence
研究方向: Computer Science
IDS : AW9AN
ISSN: 0925-2312
eISSN: 1872-8286
29 字符的来源出版物名称缩写: NEUROCOMPUTING
ISO 来源出版物缩写: Neurocomputing
来源出版物页码计数: 6
基金资助致谢:
基金资助机构 授权号
National Natural Science Foundation of China 61272530
Natural Science Foundation of Jiangsu Province of China BK2012741
Specialized Research Fund for the Doctoral Program of Higher Education 20110092110017

20130092110017

This work was jointly supported by the National Natural Science Foundation of China under Grant 61272530, the Natural Science Foundation of Jiangsu Province of China under Grant BK2012741, the Specialized Research Fund for the Doctoral Program of Higher Education under Grants 20110092110017 and 20130092110017.
4 条,共 8
标题: A local structural adaptive partial differential equation for image denoising
作者: Zeng, W; Lu, X; Tan, X
来源出版物: MULTIMEDIA TOOLS AND APPLICATIONS  : 74  : 3  : 743-757  DOI: 10.1007/s11042-013-1692-5  出版年: FEB 2015
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
使用次数 (最近 180 ): 13
使用次数 (2013 年至今): 17
引用的参考文献数: 27
摘要: In this paper, we propose a local and contextual controlled (LCC) fourth order partial differential equation (PDE) method for noise removal. First, a region based fourth order PDE is proposed, which conductance coefficients are chosen adaptively in terms of the domain type. Thus, the proposed method can preserve the advantages of forth order PDE and avoid leaving isolated black and white speckles. Furthermore, the region based fourth order PDE and two discontinuity measures are incorporated into a LCC fourth order PDE, where the joint use of the two discontinuity measures leads to a complementary effect for edge preservation. The proposed LCC fourth order PDE is tested on two typical images, including texture image and natural scene image, which show the superiority of the proposed method.
入藏号: WOS:000349356400005
语种: English
文献类型: Article
作者关键词: Partial differential equations (PDE); Local discontinuity; Contextual discontinuity; Image denoising
KeyWords Plus: NOISE REMOVAL; EDGE-DETECTION; DIFFUSION; MODEL; RESTORATION; ALGORITHMS; FILTER; SPACE
地址: [Zeng, W.; Lu, X.] Southeast Univ, Sch Automat, Nanjing, Jiangsu, Peoples R China.
[Tan, X.] Nanjing Inst Ind Technol, Dept Humanity & Math & Phys, Nanjing, Jiangsu, Peoples R China.
通讯作者地址: Lu, X (通讯作者),Southeast Univ, Sch Automat, Nanjing, Jiangsu, Peoples R China.
电子邮件地址: zengwlj@yahoo.com.cn; xblu2013@126.com; tanxh@niit.edu.cn
出版商: SPRINGER
出版商地址: VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
Web of Science 类别: Computer Science, Information Systems; Computer Science, Software Engineering; Computer Science, Theory & Methods; Engineering, Electrical & Electronic
研究方向: Computer Science; Engineering
IDS : CB0ZO
ISSN: 1380-7501
eISSN: 1573-7721
29 字符的来源出版物名称缩写: MULTIMED TOOLS APPL
ISO 来源出版物缩写: Multimed. Tools Appl.
来源出版物页码计数: 15
基金资助致谢:
基金资助机构 授权号
National Natural Science Foundation of China 61374194
National Key Technologies R & D Program of China 2009BAG13A06
Scientific Innovation Research of College Graduate in Jiangsu Province CXZZ_0163
Scientific Research Foundation of Graduate School of Southeast University YBPY1212
The authors thank the editor and the reviewers for carefully reading the early version of this paper and offering valuable suggestions and comments. This work was supported by National Natural Science Foundation of China (61374194), the National Key Technologies R & D Program of China (2009BAG13A06), the Scientific Innovation Research of College Graduate in Jiangsu Province (CXZZ_0163), and the Scientific Research Foundation of Graduate School of Southeast University (YBPY1212).
5 条,共 8
标题: Leveraging neighborhood "structural holes" to identifying key spreaders in social networks
作者: Su, XP; Song, YR
来源出版物: ACTA PHYSICA SINICA  : 64  : 2  文献号: 020101  DOI: 10.7498/aps.64.020101  出版年: JAN 20 2015
Web of Science 核心合集中的 "被引频次": 1
被引频次合计: 1
使用次数 (最近 180 ): 7
使用次数 (2013 年至今): 7
引用的参考文献数: 32
摘要: The identifying of influential nodes in large-scale complex networks is an important issue in optimizing network structure and enhancing robustness of a system. To measure the role of nodes, classic methods can help identify influential nodes, but they have some limitations to social networks. Local metric is simple but it can only take into account the neighbor size, and the topological connections among the neighbors are neglected, so it can not reflect the interaction between the nodes. The global metrics is difficult to use in large social networks because of the high computational complexity. Meanwhile, in the classic methods, the unique community characteristics of the social networks are not considered. To make a trade off between affections and efficiency, a local structural centrality measure is proposed which is based on nodes' and their 'neighbors' structural holes. Both the node degree and "bridge" property are reflected in computing node constraint index. SIR (Susceptible-Infected-Recovered) model is used to evaluate the ability to spread nodes. Simulations of four real networks show that our method can rank the capability of spreading nodes more accurately than other metrics. This algorithm has strong robustness when the network is subjected to sybil attacks.
入藏号: WOS:000349455100001
语种: Chinese
文献类型: Article
作者关键词: complex networks; structural holes; community structure; influential node centrality measure
KeyWords Plus: COMPLEX NETWORKS; INFLUENTIAL SPREADERS; RANKING
地址: [Su Xiao-Ping] Nanjing Inst Ind Technol, Sch Comp & Software Engn, Nanjing 210046, Jiangsu, Peoples R China.
[Song Yu-Rong] Nanjing Univ Posts & Telecommun, Coll Automat, Nanjing 210003, Jiangsu, Peoples R China.
通讯作者地址: Song, YR (通讯作者),Nanjing Univ Posts & Telecommun, Coll Automat, Nanjing 210003, Jiangsu, Peoples R China.
电子邮件地址: songyr@njupt.edu.cn
出版商: CHINESE PHYSICAL SOC
出版商地址: P O BOX 603, BEIJING 100080, PEOPLES R CHINA
Web of Science 类别: Physics, Multidisciplinary
研究方向: Physics
IDS : CB2KD
ISSN: 1000-3290
29 字符的来源出版物名称缩写: ACTA PHYS SIN-CH ED
ISO 来源出版物缩写: Acta Phys. Sin.
来源出版物页码计数: 11
基金资助致谢:
基金资助机构 授权号
National Natural Science Foundation of China 61373136

61103051

Ministry of Education Research in the Humanities and Social Sciences Planning Fund Project, China 12YJAZH120
Nanjing Institute of Industry Technology Major Programs, China Yk13-02-03
Project supported by the National Natural Science Foundation of China (Grant Nos. 61373136, 61103051), the Ministry of Education Research in the Humanities and Social Sciences Planning Fund Project, China (Grant No. 12YJAZH120) and the Nanjing Institute of Industry Technology Major Programs, China (Grant No. Yk13-02-03).
6 条,共 8
标题: Remarkable enhancement of mechanical and dielectric properties of flexible ethylene propylene diene monomer (EPDM)/barium titanate (BaTiO3) dielectric elastomer by chemical modification of particles
作者: Su, J; Zhang, J
来源出版物: RSC ADVANCES  : 5  : 96  : 78448-78456  DOI: 10.1039/c5ra14047a  出版年: 2015
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
使用次数 (最近 180 ): 6
使用次数 (2013 年至今): 6
引用的参考文献数: 36
摘要: In this study, three types of coupling agent, titanium tris(dodecylbenzenesulfonate) isopropoxide (NDZ 109), gamma-methacryloxypropyltrimethoxysilane (KH570) and vinyltrim + ethoxysiloxane homopolymer (SG-Si6490), were utilized to reduce the polar surface energy of barium titanate (BaTiO3) particles from 37.53 mJ m(-2) to 0.77 mJ m(-2), 16.52 mJ m(-2) and 5.46 mJ m(-2), respectively. At 30 vol% filler loading, NDZ 109 treated BaTiO3 with the lowest polar surface tension exhibited a remarkable compatibility with ethylene propylene diene monomer (EPDM) gum shown by the bound rubber content. It is found that just 1% (by weight of BaTiO3 amount) coupling agents SG-Si6490 can raise the tensile strength of EPDM with untreated BaTiO3 composite from 1.94 MPa to 9.00 MPa, due to the C=C bonds from vinyl groups. In terms of electrical properties, when untreated BaTiO3 loading was 30 vol%, the dielectric constant of EPDM control can increase from about 2 to 7. Moreover, the SG-Si6490 treated BaTiO3 further improved the dielectric constant of EPDM with untreated BaTiO3 composite from 7 to around 8. EPDM with NDZ109 treated BaTiO3 composite exhibited the lowest volume resistivity among EPDM composites.
入藏号: WOS:000361675800009
语种: English
文献类型: Article
KeyWords Plus: ENERGY DENSITY; VULCANIZATION SYSTEM; COLE-COLE; COMPOSITES; NANOCOMPOSITES; CONSTANT; BLENDS; CRYSTALLINITY; REINFORCEMENT; STRENGTH
地址: [Su, Jun; Zhang, Jun] Nanjing Tech Univ, Coll Mat Sci & Engn, Dept Polymer Sci & Engn, Nanjing 210009, Jiangsu, Peoples R China.
[Su, Jun] Nanjing Inst Ind Technol, Coll Mech Engn, Nanjing 210023, Jiangsu, Peoples R China.
通讯作者地址: Zhang, J (通讯作者),Nanjing Tech Univ, Coll Mat Sci & Engn, Dept Polymer Sci & Engn, Nanjing 210009, Jiangsu, Peoples R China.
电子邮件地址: zhangjun@njtech.edu.cn
出版商: ROYAL SOC CHEMISTRY
出版商地址: THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND
Web of Science 类别: Chemistry, Multidisciplinary
研究方向: Chemistry
IDS : CR9KZ
ISSN: 2046-2069
29 字符的来源出版物名称缩写: RSC ADV
ISO 来源出版物缩写: RSC Adv.
来源出版物页码计数: 9
7 条,共 8
标题: Architecting reconfigurable publish/subscribe applications for wireless sensor networks
作者: Dong, B; Chen, JH
来源出版物: INTERNATIONAL JOURNAL OF SENSOR NETWORKS  : 17  : 4  : 229-237  DOI: 10.1504/IJSNET.2015.069587  出版年: 2015
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
使用次数 (最近 180 ): 0
使用次数 (2013 年至今): 0
引用的参考文献数: 31
摘要: This paper presents an approach, called LBS, for modelling and implementing the architecture of wireless sensor networks (WSNs) publish/subscribe (Pub/Sub) applications using a local broker subcomponent (LBS) model. Considering the reconfigurability of WSNs applications which is necessary for WSNs middleware, a graph-oriented local broker subcomponent (GOLBS) model is defined based on the LBS model by integrated WSNs middleware with Pub/Sub. Focusing on the evolution specification of reconfiguration and non-predefined dynamic reconfiguration, we define the notations of what is the GOLBS' graph grammars and GOLBS' graph, and show a derivative procedure. We design and implement a prototype system on GOLBS, called Pub/Sub-GOLBS. Performance evaluations imply that GOLBS can easily be constructed, while ensuring good reconfigurability.
入藏号: WOS:000358693100004
语种: English
文献类型: Article
作者关键词: WSNs; wireless sensor networks; middleware; reconfigurable; publish/subscribe
KeyWords Plus: MIDDLEWARE; SYSTEMS
地址: [Dong, Biao] Nanjing Inst Ind Technol, Sch Comp & Software, Nanjing 210023, Jiangsu, Peoples R China.
[Chen, Jinhui] Nanjing Univ Informat Sci & Technol, Sch Informat & Control, Nanjing 210044, Jiangsu, Peoples R China.
通讯作者地址: Dong, B (通讯作者),Nanjing Inst Ind Technol, Sch Comp & Software, Nanjing 210023, Jiangsu, Peoples R China.
电子邮件地址: dongb@niit.edu.cn; cjh@nuist.edu.cn
出版商: INDERSCIENCE ENTERPRISES LTD
出版商地址: WORLD TRADE CENTER BLDG, 29 ROUTE DE PRE-BOIS, CASE POSTALE 856, CH-1215 GENEVA, SWITZERLAND
Web of Science 类别: Computer Science, Information Systems; Telecommunications
研究方向: Computer Science; Telecommunications
IDS : CN8LW
ISSN: 1748-1279
eISSN: 1748-1287
29 字符的来源出版物名称缩写: INT J SENS NETW
ISO 来源出版物缩写: Int. J. Sens. Netw.
来源出版物页码计数: 9
基金资助致谢:
基金资助机构 授权号
Qing Lan Project (Jiangsu province, China)  
annual project of institute of modern educational technology  
Jiangsu research institute of education sciences 2014-R-31996
Jiangsu provincial research and development centre of intelligent sensor network engineering technology, China ZK13-02-03
This work was sponsored by Qing Lan Project (Jiangsu province, China), 2014 annual project of institute of modern educational technology, Jiangsu research institute of education sciences (No. 2014-R-31996, modelling and implementation of the electronic textbook based on mobile terminal equipments) and open fund project of Jiangsu provincial research and development centre of intelligent sensor network engineering technology, China (No. ZK13-02-03, software technology, platform and application for sensor network).
8 条,共 8
标题: Biased diffusion induces coil deformation via a 'cracking-the-whip' effect of acceleration generated by dynamic heterogeneity along a polymer chain
作者: Li, J; Hu, WB
来源出版物: POLYMER INTERNATIONAL  : 64  : 1  : 49-53  DOI: 10.1002/pi.4801  出版年: JAN 2015
Web of Science 核心合集中的 "被引频次": 1
被引频次合计: 1
使用次数 (最近 180 ): 6
使用次数 (2013 年至今): 8
引用的参考文献数: 18
摘要: We performed Brownian dynamics simulations of a single polymer with monomer diffusion biased in a field of constant activation forces. We compared coil shapes among the synchronous and non-synchronous (random and sequential) updating schemes of monomer positions. The synchronous scheme makes an ideal linear integration of monomer motions, while the random scheme mimics the real nonlinear situation holding dynamic heterogeneity along the polymer chain, and the sequential scheme represents its extremely inhomogeneous situation. We found that, in contrast to the synchronous scheme that raises no deformation, the sequential scheme accumulates the local acceleration generated by dynamic heterogeneity and reveals a cracking-the-whip' effect along the chain from one end to the other to stretch the polymer coil. Meanwhile, the random scheme accumulates the local acceleration towards the middle segment of the chain and thus raises an internal tension for coil deformation as well. Our results demonstrate the dynamic heterogeneity source of coil deformation on biased polymer diffusion, which implies a molecular-level nonlinear factor in the non-Newtonian-fluid behaviors of polymer flows. (c) 2014 Society of Chemical Industry
入藏号: WOS:000345845100008
语种: English
文献类型: Article
作者关键词: polymer rheology; biased diffusion; Brownian dynamics simulations; dynamic heterogeneity; non-Newtonian fluids
KeyWords Plus: SUPERCOOLED LIQUIDS; ELONGATIONAL FLOW; RHEOLOGY
地址: [Li, Juan; Hu, Wenbing] Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Coordinat Chem, Nanjing 210093, Jiangsu, Peoples R China.
[Li, Juan] Nanjing Inst Ind Technol, Sch Mech Engn, Nanjing 210023, Jiangsu, Peoples R China.
通讯作者地址: Hu, WB (通讯作者),Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Coordinat Chem, Nanjing 210093, Jiangsu, Peoples R China.
电子邮件地址: wbhu@nju.edu.cn
出版商: WILEY-BLACKWELL
出版商地址: 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
Web of Science 类别: Polymer Science
研究方向: Polymer Science
IDS : AU8KJ
ISSN: 0959-8103
eISSN: 1097-0126
29 字符的来源出版物名称缩写: POLYM INT
ISO 来源出版物缩写: Polym. Int.
来源出版物页码计数: 5
基金资助致谢:
基金资助机构 授权号
National Natural Science Foundation of China 20825415

21274061

National Basic Research Program of China 2011CB606100
Program for Changjiang Scholars and Innovative Research Teams in University  
The financial support of the National Natural Science Foundation of China (Grant Nos 20825415 and 21274061), the National Basic Research Program of China (Grant No. 2011CB606100) and the Program for Changjiang Scholars and Innovative Research Teams in University is appreciated.