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Micro‐Brillouin Scattering Study of Acoustic Properties of Protein Crystals 蛋白质晶体声学特性的微布里渊散射研究
IF 1.2
Complex Systems Pub Date : 2008-02-27 DOI: 10.1063/1.2897817
E. Hashimoto, Y. Aoki, Y. Seshimo, K. Sasanuma, Y. Ike, S. Kojima
{"title":"Micro‐Brillouin Scattering Study of Acoustic Properties of Protein Crystals","authors":"E. Hashimoto, Y. Aoki, Y. Seshimo, K. Sasanuma, Y. Ike, S. Kojima","doi":"10.1063/1.2897817","DOIUrl":"https://doi.org/10.1063/1.2897817","url":null,"abstract":"Polymorphism and dehydration process are studied in lysozyme crystals. Three kinds of crystals with tetragonal, orthorhombic, monoclinic systems are successfully grown by two liquids method. The dehydration process of a tetragonal crystal is investigated by the micro‐Brillouin scattering techniques. This process is discussed by the Avrami–Erofe'ev equation.","PeriodicalId":46935,"journal":{"name":"Complex Systems","volume":"982 1","pages":"367-370"},"PeriodicalIF":1.2,"publicationDate":"2008-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1063/1.2897817","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58348009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Polymer Dynamics from Synthetic to Biological Macromolecules 从合成到生物大分子的聚合物动力学
IF 1.2
Complex Systems Pub Date : 2008-02-27 DOI: 10.1063/1.2897833
D. Richter, K. Niedźwiedź, M. Monkenbusch, A. Wischnewski, R. Biehl, B. Hoffmann, R. Merkel
{"title":"Polymer Dynamics from Synthetic to Biological Macromolecules","authors":"D. Richter, K. Niedźwiedź, M. Monkenbusch, A. Wischnewski, R. Biehl, B. Hoffmann, R. Merkel","doi":"10.1063/1.2897833","DOIUrl":"https://doi.org/10.1063/1.2897833","url":null,"abstract":"High resolution neutron scattering together with a meticulous choice of the contrast conditions allows to access the large scale dynamics of soft materials including biological molecules in space and time. In this contribution we present two examples. One from the world of synthetic polymers, the other from biomolecules. First, we will address the peculiar dynamics of miscible polymer blends with very different component glass transition temperatures. Polymethylmetacrylate (PMMA), polyethyleneoxide (PEO) are perfectly miscible but exhibit a difference in the glass transition temperature by 200 K. We present quasielastic neutron scattering investigations on the dynamics of the fast component in the range from angstroms to nanometers over a time frame of five orders of magnitude. All data may be consistently described in terms of a Rouse model with random friction, reflecting the random environment imposed by the nearly frozen PMMA matrix on the fast mobile PEO. In the second part we touch on some new devel...","PeriodicalId":46935,"journal":{"name":"Complex Systems","volume":"55 1","pages":"429-439"},"PeriodicalIF":1.2,"publicationDate":"2008-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1063/1.2897833","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58348140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Study of the Secondary Relaxation in Galactose‐Water Mixtures 半乳糖-水混合物中二次弛豫的研究
IF 1.2
Complex Systems Pub Date : 2008-02-27 DOI: 10.1063/1.2897888
Hyun-Joung Kwon, Jeong-Ah Seo, H. Kim, Y. Hwang
{"title":"A Study of the Secondary Relaxation in Galactose‐Water Mixtures","authors":"Hyun-Joung Kwon, Jeong-Ah Seo, H. Kim, Y. Hwang","doi":"10.1063/1.2897888","DOIUrl":"https://doi.org/10.1063/1.2897888","url":null,"abstract":"We studied the secondary relaxation in galactose‐water mixtures by analyzing the dielectric loss spectra with two different fitting methods. The first method was the free fit without any constraint and the second method was the fit with the coupling relation in coupling model (CM) [1, 2, 3]. The behavior of the secondary relaxation process were very similar to that of the secondary relaxation process with changing the rotational‐traslational (RT) coupling constant in the schematic mode coupling theory (MCT) [4, 5]. The secondary relaxation times (τJG) obtained by the constrained fit contain a large uncertainty and were consistent with τsec within the experimental errors. We also found that the fitting quality of free fit was better.","PeriodicalId":46935,"journal":{"name":"Complex Systems","volume":"982 1","pages":"728-731"},"PeriodicalIF":1.2,"publicationDate":"2008-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1063/1.2897888","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58348301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
How a Colloidal Paste Flows—Scaling Behaviors in Dispersions of Aggregated Particles under Mechanical Stress— 胶体膏体在机械应力作用下的流动和结垢行为
IF 1.2
Complex Systems Pub Date : 2008-02-27 DOI: 10.1063/1.2897806
R. Botet, B. Cabane, M. Clifton, M. Meireles, Ryohei Seto
{"title":"How a Colloidal Paste Flows—Scaling Behaviors in Dispersions of Aggregated Particles under Mechanical Stress—","authors":"R. Botet, B. Cabane, M. Clifton, M. Meireles, Ryohei Seto","doi":"10.1063/1.2897806","DOIUrl":"https://doi.org/10.1063/1.2897806","url":null,"abstract":"We have developed a novel computational scheme that allows direct numerical simulation of the mechanical behavior of sticky granular matter under stress. We present here the general method, with particular emphasis on the particle features at the nanometric scale. It is demonstrated that, although sticky granular material is quite complex and is a good example of a challenging computational problem (it is a dynamical problem, with irreversibility, self‐organization and dissipation), its main features may be reproduced on the basis of rather simple numerical model, and a small number of physical parameters. This allows precise analysis of the possible deformation processes in soft materials submitted to mechanical stress. This results in direct relationship between the macroscopic rheology of these pastes and local interactions between the particles.","PeriodicalId":46935,"journal":{"name":"Complex Systems","volume":"982 1","pages":"320-325"},"PeriodicalIF":1.2,"publicationDate":"2008-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1063/1.2897806","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58347958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Theoretical Study of Free Energy in Docking Stability of Azurin(II)‐Cytochrome c551(II) Complex System 蔚蓝蛋白(II) -细胞色素c551(II)配合体系对接稳定性的自由能理论研究
IF 1.2
Complex Systems Pub Date : 2008-02-27 DOI: 10.1063/1.2897903
Tetsunori Yamamoto, K. Nishikawa, Ayumu Sugiyama, A. Purqon, T. Mizukami, H. Shimahara, H. Nagao, K. Nishikawa
{"title":"Theoretical Study of Free Energy in Docking Stability of Azurin(II)‐Cytochrome c551(II) Complex System","authors":"Tetsunori Yamamoto, K. Nishikawa, Ayumu Sugiyama, A. Purqon, T. Mizukami, H. Shimahara, H. Nagao, K. Nishikawa","doi":"10.1063/1.2897903","DOIUrl":"https://doi.org/10.1063/1.2897903","url":null,"abstract":"The docking structure of the Azurin‐Cytochrome C551 is presented. We investigate a complex system of Azurin(II)‐Cytochrome C551(II) by using molecular dynamics simulation. We estimate some physical properties, such as root‐mean‐square deviation (RMSD), binding energy between Azurin and Cytochrome C551, distance between Azurin(II) and Cytochrome C551(II) through center of mass and each active site. We also discuss docking stability in relation to the configuration by free energy between Azurin(II)‐Cytochrome C551(II) and Azurin(I)‐Cytochrome C551(III).","PeriodicalId":46935,"journal":{"name":"Complex Systems","volume":"24 1","pages":"784-787"},"PeriodicalIF":1.2,"publicationDate":"2008-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1063/1.2897903","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58348412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Structure and Thermodynamic Stability of Reverse Micelles in Dry AOT/Alkane Mixtures 干AOT/烷烃混合物中反胶束的结构和热力学稳定性
IF 1.2
Complex Systems Pub Date : 2008-02-27 DOI: 10.1063/1.2897802
A. Wootton, Francois Picavez, P. Harrowell
{"title":"The Structure and Thermodynamic Stability of Reverse Micelles in Dry AOT/Alkane Mixtures","authors":"A. Wootton, Francois Picavez, P. Harrowell","doi":"10.1063/1.2897802","DOIUrl":"https://doi.org/10.1063/1.2897802","url":null,"abstract":"Monte Carlo simulation studies of reverse micelles of an anionic surfactant, sodium AOT, in a non‐polar solvent provide strong evidence that, in the absence of water, these clusters are charge ordered polyhedral shells. The stabilizing energy of these clusters is so large that the entropy of mixing is, in comparison, inconsequential and we predict that, if all waters of hydration could be removed (something not yet accomplished for the sodium salt) then AOT would be insoluble in nonpolar solvents.","PeriodicalId":46935,"journal":{"name":"Complex Systems","volume":"982 1","pages":"289-294"},"PeriodicalIF":1.2,"publicationDate":"2008-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1063/1.2897802","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58347943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Monte Carlo Simulation for Ternary System of Water/Oil/ABA Triblock Copolymers 水/油/ABA三嵌段共聚物三元体系的蒙特卡罗模拟
IF 1.2
Complex Systems Pub Date : 2008-02-27 DOI: 10.1063/1.2897844
N. Nakagawa, K. Ohno
{"title":"Monte Carlo Simulation for Ternary System of Water/Oil/ABA Triblock Copolymers","authors":"N. Nakagawa, K. Ohno","doi":"10.1063/1.2897844","DOIUrl":"https://doi.org/10.1063/1.2897844","url":null,"abstract":"We performed Monte Carlo simulation of water/oil/ABA triblock amphiphiles with hydrophilic A and hydrophobic B, on a 51×51×51 simple cubic lattice with periodic boundary conditions in x‐ and y‐directions. Bond fluctuation model(BFM) was used to describe amphiphile, where excluded volume effect and flexible movement of polymer bonds are ascertained. The ratio of water to oil was changed from 10/85 to 50/45 with 5% fixed dilute amphiphiles. For small water/oil ratio, many cubic water clusters surrounded by loop‐shaped amphiphiles dispersed in oil and they were bridged between each other by bridge‐shaped amphiphiles. On the other hand, phase separation between water and oil plus amphiphiles clearly occurred for large water/oil ratio, where water formed one grid‐shaped cluster. At some intermediate water/oil ratio, water cells aggregated into two water clusters with shape of rectangular rod, spread in x‐ and y‐directions and separated in z‐direction by mainly loop‐shaped amphiphiles, where water clusters and ...","PeriodicalId":46935,"journal":{"name":"Complex Systems","volume":"982 1","pages":"497-500"},"PeriodicalIF":1.2,"publicationDate":"2008-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1063/1.2897844","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58348172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Mixed IFS: Resolution of the Inverse Problem using Genetic Programming 混合IFS:用遗传规划求解逆问题
IF 1.2
Complex Systems Pub Date : 1995-09-04 DOI: 10.1007/3-540-61108-8_42
E. Lutton, J. L. Véhel, Guillaume Cretin, Philippe Glevarec, Cidric Roll
{"title":"Mixed IFS: Resolution of the Inverse Problem using Genetic Programming","authors":"E. Lutton, J. L. Véhel, Guillaume Cretin, Philippe Glevarec, Cidric Roll","doi":"10.1007/3-540-61108-8_42","DOIUrl":"https://doi.org/10.1007/3-540-61108-8_42","url":null,"abstract":"","PeriodicalId":46935,"journal":{"name":"Complex Systems","volume":"33 1","pages":"247-258"},"PeriodicalIF":1.2,"publicationDate":"1995-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80029825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 53
Structurally Dynamic Cellular Automata 结构动态元胞自动机
IF 1.2
Complex Systems Pub Date : 1987-01-01 DOI: 10.1007/978-0-387-30440-3_528
Andrew Ilachinski, Paul Halpern
{"title":"Structurally Dynamic Cellular Automata","authors":"Andrew Ilachinski, Paul Halpern","doi":"10.1007/978-0-387-30440-3_528","DOIUrl":"https://doi.org/10.1007/978-0-387-30440-3_528","url":null,"abstract":"","PeriodicalId":46935,"journal":{"name":"Complex Systems","volume":"23 1","pages":"8815-8850"},"PeriodicalIF":1.2,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84390709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 44
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