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Dynamic effects on peptide structure: molecular dynamics simulations of a peptide employing ensemble of peptides 对肽结构的动态影响:利用肽集合的肽的分子动力学模拟
2005 International Conference on MEMS,NANO and Smart Systems Pub Date : 2005-07-24 DOI: 10.1109/ICMENS.2005.44
K. Kaur
{"title":"Dynamic effects on peptide structure: molecular dynamics simulations of a peptide employing ensemble of peptides","authors":"K. Kaur","doi":"10.1109/ICMENS.2005.44","DOIUrl":"https://doi.org/10.1109/ICMENS.2005.44","url":null,"abstract":"Interactions between molecular surfaces are fundamental to all natural processes. Based on these interactions, living systems such as animals, plants, and microorganisms maintain complex regulatory and metabolic interaction networks that in concert form the processes of life. The development of molecular modeling tools for understanding molecular interactions has been used extensively. However, elucidation of the mechanism of molecular interaction between nanosystems like proteins is quite complex. Feedback from the current results plays a role in increasing the complexity of such interactions. Such feedback loops demonstrate the need for creating novel computational model for complex phenomena like protein-protein interactions. Experimental measurements of protein interactions involve averaging over an ensemble of molecules. However, theoretical and computational models typically predict conformations of a peptide or protein on the basis of a single, isolated molecule in a box of solvent. In the present study, we have developed a simulation system consisting of ensemble of peptides (as shown below, a two peptide system). The dynamic effects on peptide structure in this simulation system are compared with the isolated single peptide simulation. The results clearly suggest that it is more appropriate to consider peptides in an ensemble during MD simulations. While the single peptide simulations consider the intramolecular interactions, it completely ignores the vital intermolecular interactions between two peptides molecules.","PeriodicalId":185824,"journal":{"name":"2005 International Conference on MEMS,NANO and Smart Systems","volume":"443 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115165633","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
Reconfigurable ground plane membranes for analog/digital microstrip phase shifters and frequency agile antenna 用于模拟/数字微带移相器和频率捷变天线的可重构地平面膜
2005 International Conference on MEMS,NANO and Smart Systems Pub Date : 2005-07-24 DOI: 10.1109/ICMENS.2005.102
C. Shafai, L. Shafai, R. Al-Dahleh, D. Chrusch, Satish K. Sharma
{"title":"Reconfigurable ground plane membranes for analog/digital microstrip phase shifters and frequency agile antenna","authors":"C. Shafai, L. Shafai, R. Al-Dahleh, D. Chrusch, Satish K. Sharma","doi":"10.1109/ICMENS.2005.102","DOIUrl":"https://doi.org/10.1109/ICMENS.2005.102","url":null,"abstract":"A new type of RF MEMS device is presented for microstrip transmission line phase shifters and frequency agile patch antenna. Ground plane membranes are implemented to control local substrate effective dielectric constant and so microstrip device capacitance. Continuous control of transmission line phase shift or antenna resonant frequency is demonstrated. In phase shifter implementation, a figure of merit of over 700/spl deg/ phase shift/dB signal power loss has been achieved. In MPA implementation, a MPA was continuously swept from 16.8 GHz to 17.82 GHz (6% variation). Additionally, while MEM switch devices are limited in power handling capability, the presented device is not so limited.","PeriodicalId":185824,"journal":{"name":"2005 International Conference on MEMS,NANO and Smart Systems","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115492988","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: 4
Superhydrophobic behavior of a microtextured surface: a thermodynamic approach 微织构表面的超疏水行为:热力学方法
2005 International Conference on MEMS,NANO and Smart Systems Pub Date : 2005-07-24 DOI: 10.1109/ICMENS.2005.114
W. Li, A. Amirfazli
{"title":"Superhydrophobic behavior of a microtextured surface: a thermodynamic approach","authors":"W. Li, A. Amirfazli","doi":"10.1109/ICMENS.2005.114","DOIUrl":"https://doi.org/10.1109/ICMENS.2005.114","url":null,"abstract":"A pillar microtexture, which has been intensively investigated in experiments, is chosen as a typical example and thermodynamically analyzed in detail. To gain a comprehensive insight into superhydrophobic behavior, the roles of pillar height, width and spacing (or roughness and solid fraction), intrinsic CA, drop size, and vibrational energy as well as fractal structure and formation of liquid films are systematically investigated. Solid surface fraction is shown by f. Free energy (FE) and free energy barrier (FEB) are calculated using a simple and robust 2D model. Based on the calculations of FE and FEB, various CAs, including apparent, equilibrium (stable), advancing and receding CAs, and CA hysteresis (CAH) can be determined. Especially, the design of practical surephydrophobic surfaces is emphasized in connection with the transition between noncomposite and composite states; a criterion for judging such transition is proposed. The theoretical results are consistent with Wenzel's and Cassie's equations and experimental observations. Furthermore, based on these results and the proposed criterion, some general principles to achieve superhydrophobic performance are suggested.","PeriodicalId":185824,"journal":{"name":"2005 International Conference on MEMS,NANO and Smart Systems","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115573504","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 pressure and cosolvent effects on the solvation structure of staphylococcal nuclease 压力和共溶剂对葡萄球菌核酸酶溶剂化结构影响的理论研究
2005 International Conference on MEMS,NANO and Smart Systems Pub Date : 2005-07-24 DOI: 10.1109/ICMENS.2005.123
T. Yamazaki, A. Kovalenko
{"title":"Theoretical study of pressure and cosolvent effects on the solvation structure of staphylococcal nuclease","authors":"T. Yamazaki, A. Kovalenko","doi":"10.1109/ICMENS.2005.123","DOIUrl":"https://doi.org/10.1109/ICMENS.2005.123","url":null,"abstract":"Integral equation theory for molecular liquids, three-dimensional reference interaction site model (3D-RISM), is used to study pressure and cosolvent effects on the solvation structure of staphylococcal nuclease (SNase). Solvation structure, partial molar volume, and partial molar volume-compressibility, which relates to the response of solvation structure with respect to the pressure, around SNase are discussed.","PeriodicalId":185824,"journal":{"name":"2005 International Conference on MEMS,NANO and Smart Systems","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116434809","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
Contact mechanics description of inelastic displacement response of a nano-positioning device 纳米定位装置非弹性位移响应的接触力学描述
2005 International Conference on MEMS,NANO and Smart Systems Pub Date : 2005-07-24 DOI: 10.1109/ICMENS.2005.3
Michael J. Starra, E. Reedy, Alex D. Corwina, R. Carpick, E. Flater
{"title":"Contact mechanics description of inelastic displacement response of a nano-positioning device","authors":"Michael J. Starra, E. Reedy, Alex D. Corwina, R. Carpick, E. Flater","doi":"10.1109/ICMENS.2005.3","DOIUrl":"https://doi.org/10.1109/ICMENS.2005.3","url":null,"abstract":"A classical mechanistic model was developed to capture the existence of pre-sliding tangential deflection (PSTD) in contacting polysilicon and coated polysilicon surfaces. For the purposes of modeling asperity friction, experiments have shown, and been supported through detailed finite element analyses, that frictional forces developed through tangential sliding scale linearly through a material parameter known as the junction strength. A junction strength model coupled with a discrete quasi-static contact mechanics analysis, using contacting surface descriptions sampled by AFM from actual polysilicon surfaces, predicts inelastic tangential displacements that are qualitatively consistent with observed PSTD response. The simulations imply that the existence of PSTD depends not only on the spatial characteristics of contacting surfaces, but also on the local loading characteristics.","PeriodicalId":185824,"journal":{"name":"2005 International Conference on MEMS,NANO and Smart Systems","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121871771","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: 4
A self-consistent theory of polymer solvation 聚合物溶剂化的自洽理论
2005 International Conference on MEMS,NANO and Smart Systems Pub Date : 2005-07-24 DOI: 10.1109/ICMENS.2005.18
L. Livadaru, A. Kovalenko
{"title":"A self-consistent theory of polymer solvation","authors":"L. Livadaru, A. Kovalenko","doi":"10.1109/ICMENS.2005.18","DOIUrl":"https://doi.org/10.1109/ICMENS.2005.18","url":null,"abstract":"We propose a self-consistent molecular theory of conformational properties of flexible polymers in melts and solutions. The method employs the Polymer Reference Interaction Site Model for the intermolecular correlations and the Green functions technique for the intramolecular correlations. We demonstrate this method on n-alkane molecules in different environments: water, hexane, and in melt, corresponding to poor good, and /spl theta/-condition, respectively.","PeriodicalId":185824,"journal":{"name":"2005 International Conference on MEMS,NANO and Smart Systems","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129274775","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: 2
Large deflection of a polyurethane elastomer under high electric field 高电场作用下聚氨酯弹性体的大挠曲
2005 International Conference on MEMS,NANO and Smart Systems Pub Date : 2005-07-24 DOI: 10.1109/ICMENS.2005.6
Y. Matsuzaki, T. Sugiura
{"title":"Large deflection of a polyurethane elastomer under high electric field","authors":"Y. Matsuzaki, T. Sugiura","doi":"10.1109/ICMENS.2005.6","DOIUrl":"https://doi.org/10.1109/ICMENS.2005.6","url":null,"abstract":"This research deals with large deflection of polyurethane elastomer under high electric field. By taking advantage of this phenomenon, a flexible actuator like artificial muscles is expectable. A bending actuator of cantilever type was considered and the governing equation was derived. The solution in static balance obtained analytically shows that the tip deflection is proportional to square of the applied voltage, which was verified by experiment.","PeriodicalId":185824,"journal":{"name":"2005 International Conference on MEMS,NANO and Smart Systems","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114067339","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 smallsat TIR spectrometer MIBS (macro system enabled by micro system technology) 小型卫星TIR光谱仪MIBS(微系统技术实现宏观系统)
2005 International Conference on MEMS,NANO and Smart Systems Pub Date : 2005-07-24 DOI: 10.1109/ICMENS.2005.121
J. Leijtens, A. Court, J. Lucas
{"title":"The smallsat TIR spectrometer MIBS (macro system enabled by micro system technology)","authors":"J. Leijtens, A. Court, J. Lucas","doi":"10.1109/ICMENS.2005.121","DOIUrl":"https://doi.org/10.1109/ICMENS.2005.121","url":null,"abstract":"In frame of the ESA Earthcare MSI study, TNO Science and Industry has developed a compact spectrometer which is optimized for operation in the 7 to 14 /spl mu/m wavelength region. By optimizing the throughput of the system, and using the advantages of modern manufacturing technologies to the largest extend possible, an instrument has been created that can be flown on a multitude of missions. Extensions to other wavelength regions can be accommodated due to the all reflective fore optics system.","PeriodicalId":185824,"journal":{"name":"2005 International Conference on MEMS,NANO and Smart Systems","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126434381","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
Hydrogel microvalve device modeling and simulation 水凝胶微阀装置建模与仿真
2005 International Conference on MEMS,NANO and Smart Systems Pub Date : 2005-07-24 DOI: 10.1109/ICMENS.2005.56
M. Ibrahim, J. R. Saunders, M. A. Walied
{"title":"Hydrogel microvalve device modeling and simulation","authors":"M. Ibrahim, J. R. Saunders, M. A. Walied","doi":"10.1109/ICMENS.2005.56","DOIUrl":"https://doi.org/10.1109/ICMENS.2005.56","url":null,"abstract":"The modeling and simulation of fabricated 3D hybrid hydrogel microvalve using a commercial FE package is presented in this paper. A PDMS diaphragm is deflected to 197.5 /spl mu/m. A stimulated hydrogel volume swelled to 465% of its original volume. Results of the finite element analysis are reported and a comparison to the fabricated model results is made.","PeriodicalId":185824,"journal":{"name":"2005 International Conference on MEMS,NANO and Smart Systems","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115849546","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
Study on the preparation and electro-deformation of EVOH-SO/sub 3/K IPMC EVOH-SO/sub - 3/K IPMC的制备及电变形研究
2005 International Conference on MEMS,NANO and Smart Systems Pub Date : 2005-07-24 DOI: 10.1109/ICMENS.2005.113
Yujun Zhang, Yu-dong Huang, Feng-fu Li
{"title":"Study on the preparation and electro-deformation of EVOH-SO/sub 3/K IPMC","authors":"Yujun Zhang, Yu-dong Huang, Feng-fu Li","doi":"10.1109/ICMENS.2005.113","DOIUrl":"https://doi.org/10.1109/ICMENS.2005.113","url":null,"abstract":"EVOH-SO/sub 3/K is prepared by sulfonation reaction of EVOH with 1,3-propane sultone and characterized by IR, /sup 1/H NMR. It is soluble in water when the ratio of hydroxyl in EVOH and 1,3-propane sultone is less than 2.5 and insoluble in water when the ratio is more than 2.5. The EVOH-SO/sub 3/K membrane is prepared by electrospinning and the electrode-formation characteristic of the membrane is studied. It is proved that there is electro-deformation on EVOH-SO/sub 3/K film under the electric strength of 156-128 V/mm. The mechanism of electro-deformation is discussed according to the structure and the performance of the material.","PeriodicalId":185824,"journal":{"name":"2005 International Conference on MEMS,NANO and Smart Systems","volume":"7 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132502757","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
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