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9th International Symposium on Electrets (ISE 9) Proceedings最新文献

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Hydration effects on myoglobin and hemoglobin monitored by TSDC spectroscopy TSDC光谱监测水合作用对肌红蛋白和血红蛋白的影响
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578204
D. Bonvicini, M. G. Bridelli, R. Capelletti, S. Losi
{"title":"Hydration effects on myoglobin and hemoglobin monitored by TSDC spectroscopy","authors":"D. Bonvicini, M. G. Bridelli, R. Capelletti, S. Losi","doi":"10.1109/ISE.1996.578204","DOIUrl":"https://doi.org/10.1109/ISE.1996.578204","url":null,"abstract":"TSDC spectra of myoglobin (Mb) and human hemoglobin (Hb) have provided a great deal of information about the properties and role played by water molecules organized in the structure of both proteins at very low hydration degree /spl delta/ (/spl delta/=0.01+0.62). In particular, complementary TSDC and optical absorption spectroscopies applied to Mb have highlighted a critical hydration level which induces a partially irreversible structural change. TSDC analysis of Hb has supplied information about the hydration network, particularly with regard to the average number of hydrogen bonds established by the water molecules in the inner cages of the polymer at different hydration degrees.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126138617","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
Piezoelectric and pyroelectric properties of PT/P(VDF-TrFE) 0-3 composites PT/P(VDF-TrFE) 0-3复合材料的压电和热释电性能
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578220
H. Chan, W. Chan, C. Choy, D. Lei
{"title":"Piezoelectric and pyroelectric properties of PT/P(VDF-TrFE) 0-3 composites","authors":"H. Chan, W. Chan, C. Choy, D. Lei","doi":"10.1109/ISE.1996.578220","DOIUrl":"https://doi.org/10.1109/ISE.1996.578220","url":null,"abstract":"Lead titanate (PT)/vinylidene fluoride-trifluoroethylene (P(VDF-TrFE)) copolymer 0-3 composites have been fabricated by solution blending followed by compression-molding. In order to obtain piezoelectric and pyroelectric activities the composites have been polarized by a stepwise poling method. Samples with (i) polarization in the ceramic phase only and (ii) parallel polarization in the ceramic and copolymer have been prepared. The piezoelectric and pyroelectric coefficients of these two types of composites have been measured and the results are discussed.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130352088","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: 5
Electron-beam poling of PVDF and P(VDF-TFE) copolymer PVDF和P(VDF-TFE)共聚物的电子束极化
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578092
Y. Guo-Mao, G. Sessler, S. Fedosov
{"title":"Electron-beam poling of PVDF and P(VDF-TFE) copolymer","authors":"Y. Guo-Mao, G. Sessler, S. Fedosov","doi":"10.1109/ISE.1996.578092","DOIUrl":"https://doi.org/10.1109/ISE.1996.578092","url":null,"abstract":"Summary form only given. It is known that, by poling ferroelectric polymers with a partly penetrating electron beam, one can obtain the residual polarization only in a definite controllable part of the volume. At the same time, the penetration depth and the profile of the polarization depend not only on parameters of the beam, but also on properties of the poled materials. In this work we compare polarization profiles in electron-beam poled PVDF and P(VDF-TFE) copolymer.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121046220","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 effect of inorganic filler on charging properties of low density polyethylene 无机填料对低密度聚乙烯充电性能的影响
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578091
Xiaohong Zhang, Qi-Rong Yang, Wen Wang, Q. Lei
{"title":"The effect of inorganic filler on charging properties of low density polyethylene","authors":"Xiaohong Zhang, Qi-Rong Yang, Wen Wang, Q. Lei","doi":"10.1109/ISE.1996.578091","DOIUrl":"https://doi.org/10.1109/ISE.1996.578091","url":null,"abstract":"The present paper discusses the effect of inorganic filler (Kaolin clay) on electrical properties of low density polyethylene (LDPE), and experimentally, it can be demonstrated that inorganic filler could act as a deep trap originating from its interface with LDPE. The reasons for this are as following: Higher temperature peak of TSC in f-LDPE specimen disappears; inorganic filler-LDPE composition also exhibited better characteristics in inhibiting tree growth, improving the voltage endurance and the short-term breakdown behavior at higher temperature of polymer; This opinion was also supported by the result of TSC test on f-LDPE.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122536313","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
A new mathematical approach on vibration active control by intelligent materials 智能材料振动主动控制的一种新的数学方法
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578245
M. Rahmoune, A. Il Idrissi, M. Latour
{"title":"A new mathematical approach on vibration active control by intelligent materials","authors":"M. Rahmoune, A. Il Idrissi, M. Latour","doi":"10.1109/ISE.1996.578245","DOIUrl":"https://doi.org/10.1109/ISE.1996.578245","url":null,"abstract":"We present in this paper a new and general mathematical formulation on dynamic and vibration active control of elastic structures by piezoelectric materials.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123325451","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
Acquisition of modulated PZT signal and application of SEAM 调制PZT信号的采集及SEAM的应用
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578264
Yang Yang, Bingyan Zhang, F. Jiang, S. Hui, Qingrui Yin
{"title":"Acquisition of modulated PZT signal and application of SEAM","authors":"Yang Yang, Bingyan Zhang, F. Jiang, S. Hui, Qingrui Yin","doi":"10.1109/ISE.1996.578264","DOIUrl":"https://doi.org/10.1109/ISE.1996.578264","url":null,"abstract":"PZT transducers can be used to measure the characteristics of materials irradiated by laser or electron beams. In order to maintain high measurement resolution, the signal aroused on the transducer is modulated to produce a modulated PZT signal. Signal acquisition is accomplished with a lock-in amplifier and computer technologies. A typical application is SEAM (Scanning Electrical Acoustic Microscopy). The SEAM image reflects the thermal characteristics of materials. Furthermore, the SEAM image can supply subsurface information without destroying the sample.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132313367","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
Charge carrier transport and recombination controlled by fluctuating localized states 局域态波动控制的载流子输运和复合
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578035
V. Arkhipov, G. Adriaenssens
{"title":"Charge carrier transport and recombination controlled by fluctuating localized states","authors":"V. Arkhipov, G. Adriaenssens","doi":"10.1109/ISE.1996.578035","DOIUrl":"https://doi.org/10.1109/ISE.1996.578035","url":null,"abstract":"A model is presented which explains apparent temperature dependences of the density of state distributions in amorphous semiconductors and dielectrics. The model takes into account temporal fluctuations of the localized-state energies and predicts distributions of activation energies with sharp edges whose positions are temperature dependent. Effect of the fluctuations on charge carrier transport is discussed.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130825954","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
Electret state in blendmers of polypropylene, PP grafted with maleic anhydride and polycarbonate 聚丙烯、聚丙烯接枝马来酸酐和聚碳酸酯共混剂的驻极体态
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578138
S. Matsuura, T. Takamatsu
{"title":"Electret state in blendmers of polypropylene, PP grafted with maleic anhydride and polycarbonate","authors":"S. Matsuura, T. Takamatsu","doi":"10.1109/ISE.1996.578138","DOIUrl":"https://doi.org/10.1109/ISE.1996.578138","url":null,"abstract":"Electret properties in Blendmer of polypropylene, Maleic anhydride grafted [MAH-PP] and polycarbonate have been studied. The blendmer films were polarized by corona discharge or by applying various d.c. electric field. Temperature dependence of residual surface charge and thermally stimulated depolarization current [TSDC] in the blendmers were measured. The amount of surface charge increased with the increase of MAH-PP content. Two peaks appeared in the TSDC at 90/spl deg/ and 150/spl deg/C. Low temperature peak may be generated by orientation of the dipole in MAH-PP. High temperature peak may be produced due to migration of homocharge trapped In the phase boundary between crystalline and amorphous region of the blendmers. It was found that the blendmer can be used as an electret air filter material.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126480801","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
Study on healing effect of PTFE electrets on pig wound 聚四氟乙烯驻极体对猪伤口愈合效果的研究
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578208
Jian Jiang, Zhenshoung Wang, Lan Hao, Mingli Zhang, L. Cui, Z. Xia
{"title":"Study on healing effect of PTFE electrets on pig wound","authors":"Jian Jiang, Zhenshoung Wang, Lan Hao, Mingli Zhang, L. Cui, Z. Xia","doi":"10.1109/ISE.1996.578208","DOIUrl":"https://doi.org/10.1109/ISE.1996.578208","url":null,"abstract":"Forty-eight second-degree wounds on the backs of three pigs, which were divided into 3 groups, were covered with vaseline-oiled gauze or /spl plusmn/700 V PTFE electret substrates. The effect on accelerating the wound healing was investigated by determining the content of DNA from an epithelial cell on the wound, observing the the growth of an epithelial cell with the microscope and calculating the reduction rate of wound area by using a computer. The results showed that electret treatment can enhance the growth of an epithelial cell and raise the content of DNA. An electret can accelerate the wound healing. The optimal equivalent surface potential for the PTFE electret film is about -700 V.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"229 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114003244","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: 6
Internal field and thermally stimulated effect in ferroelectric odd nylons 铁电奇尼龙的内场及热激效应
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578244
Zicai Liang, Bo Jiang, Wenqing Chen
{"title":"Internal field and thermally stimulated effect in ferroelectric odd nylons","authors":"Zicai Liang, Bo Jiang, Wenqing Chen","doi":"10.1109/ISE.1996.578244","DOIUrl":"https://doi.org/10.1109/ISE.1996.578244","url":null,"abstract":"An unusual ferroelectric behavior of nylon 11 has been observed at high temperature. The very large value of the remnant polarization shows that the dipole in the amorphous regions of the semi-crystalline odd nylons could have an important contribution to the ferroelectric polarization. The homocharge and heterocharge are related with the applied electric field. The spectra of thermally stimulated depolarization current at the different poling conditions are reported and discussed.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"335 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123090186","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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