2011 IEEE Pulsed Power Conference最新文献_第2页

Enhanced MOSFET gate driver for pulsed power IVA module 用于脉冲功率IVA模块的增强型MOSFET栅极驱动器

2011 IEEE Pulsed Power Conference Pub Date : 2011-06-19 DOI: 10.1109/PPC.2011.6191667

P. Iyengar, J. Fletcher, D. Bittlestone, S. Finney, M. Sinclair

引用次数: 3

Boundary element method for solution of 3-D magnetic fields 三维磁场解的边界元法

2011 IEEE Pulsed Power Conference Pub Date : 2011-06-19 DOI: 10.1109/PPC.2011.6191461

M. Ingber, G. Kiuttu, J. Ingber, B. Smith

引用次数: 2

Gene analysis of HeLa cells subjected to intense burst sinusoidal electric fields 强脉冲正弦电场作用下HeLa细胞的基因分析

2011 IEEE Pulsed Power Conference Pub Date : 2011-06-19 DOI: 10.1109/PPC.2011.6191583

M. Yano, C. Matsumoto, N. Tanaka, T. Oide, K. Abe, S. Katsuki, H. Akiyama

{"title":"Gene analysis of HeLa cells subjected to intense burst sinusoidal electric fields","authors":"M. Yano, C. Matsumoto, N. Tanaka, T. Oide, K. Abe, S. Katsuki, H. Akiyama","doi":"10.1109/PPC.2011.6191583","DOIUrl":"https://doi.org/10.1109/PPC.2011.6191583","url":null,"abstract":"Intense pulsed electrics field are one of the agents to give physical stresses to biological systems which are the complex of dielectric materials. We have been using an intense burst sinusoidal electric field (IBSEF) as a narrow band field to discuss the biological effects of the field in the frequency domain. Our previous study demonstrated that the enhancement of proliferation activity of HeLa S3 cells is induced by the application of non-thermal, IBSEF with amplitudes of 300 kV/m and with frequencies between 3 and 100 MHz. Moreover, the application of the smaller number of the pulses enhanced the proliferation activity, whereas the cells were likely to be killed by the larger number of the pulses. According to calculation of the electric field distribution over the cell under AC field, the field strength of cell membrane is decreased with increasing the frequency in the range more than 1 MHz. The range of frequencies between 3–10 MHz, the distributed field strength on nuclear membrane became the maximum. This is because of the decrease in the electrical impedance of the membrane, which can be regarded as a dielectric film. The frequency dependence implies the proliferation activity might be associated with the electric field at the cell membrane and nuclear membrane. Here, we analyze expression of RNA gene related to cell growth including cell cycle and describe the mechanism of the enhancement of proliferation activity by means of reverse transcription polymerase chain reaction (RT-PCR) assays.","PeriodicalId":331835,"journal":{"name":"2011 IEEE Pulsed Power Conference","volume":"176 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129244751","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

Three-dimensional electromagnetic modeling of composite dielectric materials 复合介质材料的三维电磁建模

2011 IEEE Pulsed Power Conference Pub Date : 2011-06-19 DOI: 10.1109/PPC.2011.6191429

K. O'connor, R. Curry

{"title":"Three-dimensional electromagnetic modeling of composite dielectric materials","authors":"K. O'connor, R. Curry","doi":"10.1109/PPC.2011.6191429","DOIUrl":"https://doi.org/10.1109/PPC.2011.6191429","url":null,"abstract":"When manufacturing composite dielectric materials with various shapes, sizes, dielectric properties, and amounts of each constituent element, it is beneficial to predict the effective dielectric constant and the distribution of electric fields within the composite. A three-dimensional electromagnetic model has recently been developed at the University of Missouri to aid in this analysis. CST EM Studio, which specializes in three-dimensional electromagnetic simulation, was chosen for the simulation environment. A custom-developed software program automates the construction and electromagnetic analysis of the composite material within CST EM Studio. The program virtually constructs a composite with up to thousands of distinct composite elements placed in a quasi-random arrangement according to user-defined input parameters. The program provides a means of efficiently and accurately modeling composite systems without manually creating the high number of individual composite elements. The program enables user specification over the simulation parameters and automated analysis of the simulation results through a user interface. The dielectric constant of each composite element, the loading percentages, and multiple physical particle parameters, including the shape, size, and density, are user-defined. The effective dielectric constant of the composite is determined by analyzing the capacitance of a parallel plate capacitor made with the virtual composite material. Additionally, the distribution of electric fields through the composite elements and at potential triple points can be analyzed for potential sites of failure. A detailed description of the modeling method and program is provided. Commonly-used equations for the effective dielectric constant of composites are introduced, and comparisons are presented between the simulated effective dielectric constant and the values calculated from those equations for various particle loading percentages. Lastly, examples of how the electric field is distributed through the composite structure are included.","PeriodicalId":331835,"journal":{"name":"2011 IEEE Pulsed Power Conference","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124635802","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

Fundamental study to apply the pulsed power technology on the biomass production 脉冲功率技术在生物质生产中的应用基础研究

2011 IEEE Pulsed Power Conference Pub Date : 2011-06-19 DOI: 10.1109/PPC.2011.6191591

M. Yamanaka, A. Fujita, K. Teranishi, N. Shimomura

{"title":"Fundamental study to apply the pulsed power technology on the biomass production","authors":"M. Yamanaka, A. Fujita, K. Teranishi, N. Shimomura","doi":"10.1109/PPC.2011.6191591","DOIUrl":"https://doi.org/10.1109/PPC.2011.6191591","url":null,"abstract":"The depletion of fossil fuel is a serious global problem. The development of new biomass fuel, which is not made from foods as corn and sugar cane, is an urgent necessity. For the easiness of the cultivation and the richness for containing fuel, hydrophytic microalga is expected as a crude material for biomass fuel. The manufacturing process is sketchily classified into cultivation, extraction of oil component and refinement of fuel. The manufacturing process without cultivation is, however, inefficient at present. This study applies pulsed power technology to the production process of biomass fuel made from microalga, which is the cultivation and extraction process. Nanosecond pulsed electric fields are applied to the microalga to anticipate increment of cultivation speed and modification of component. In this experiment, the alga density of large number of treated samples was higher than that of negative control samples after seven days of the treatment. The technology to open up pores on cell membrane is called electroporation, and it is important cell control technology in the biotechnology. In another experiment, pulsed power was applied to the alga to improve the efficiency of component extracting process with electroporation. The pulsed powers with different pulse length were used to consider the effect.","PeriodicalId":331835,"journal":{"name":"2011 IEEE Pulsed Power Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130299805","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

Application based general scaling in railguns 基于轨道炮通用缩放的应用

2011 IEEE Pulsed Power Conference Pub Date : 2011-06-19 DOI: 10.1109/PPC.2011.6191544

V. Sung, W. Odendaal

引用次数: 4

Rep-rated operation of a modular, compact HV-capacitor charger 模块化，紧凑型高压电容器充电器的额定操作

2011 IEEE Pulsed Power Conference Pub Date : 2011-06-19 DOI: 10.1109/PPC.2011.6191687

T. Vollmer, M. Giesselmann

引用次数: 4

Compact electro-explosive fuse optimization for a helical flux compression generator 螺旋磁通压缩发生器的紧凑型电爆引信优化

2011 IEEE Pulsed Power Conference Pub Date : 2011-06-19 DOI: 10.1109/PPC.2011.6191477

J. Stephens, A. Neuber, J. Dickens, M. Kristiansen

引用次数: 1

Effects of inductance on the metallization removal of exploding films 电感对爆炸膜金属化去除的影响

2011 IEEE Pulsed Power Conference Pub Date : 2011-06-19 DOI: 10.1109/PPC.2011.6191462

Mark T. Muffoletto, A. Upia, T. DiSanto, D. Muffoletto, Kevin M. Burk, J. Zirnheld, H. Moore, Hardev Singh, P. Haney

引用次数: 0

A tunable metamaterial-based passive limiter for protection from HPM and UWB sources 一种可调谐的基于超材料的无源限制器，用于保护HPM和UWB源

2011 IEEE Pulsed Power Conference Pub Date : 2011-06-19 DOI: 10.1109/PPC.2011.6191453

P. Kelly, J. Mankowski, M. Kristiansen

{"title":"A tunable metamaterial-based passive limiter for protection from HPM and UWB sources","authors":"P. Kelly, J. Mankowski, M. Kristiansen","doi":"10.1109/PPC.2011.6191453","DOIUrl":"https://doi.org/10.1109/PPC.2011.6191453","url":null,"abstract":"The development of a high power in-line limiter utilizing varactor-loaded metamaterial structures is presented. A metamaterial structure is an artificial structure engineered to provide electromagnetic properties not available in nature, more explicitly defined as a material having simultaneously negative permittivity and negative permeability. A singly-negative material (SNG) structure, the split-ring resonator (SRR), is a negative permeability material which acts as a notch filter with resonant frequency f0. The resonant frequency of the SRR filter yields itself to tuning since the capacitance between the SRR and transmission lines is easily changeable through the use of varactors. At nominal power levels, f0 is significantly offset from the receiving frequency such that the receiving frequency is unattenuated. When an in-band high power microwave (HPM) is incident upon the filter, a DC bias is applied to several varactors and shifts the resonant frequency of the filter to that of the receiving frequency due to the change in capacitance of the varactors. This effectively attenuates the incident HPM. The filter uses a microwave rectifying circuit to extract a DC voltage from the in-band HPM, which serves as the DC bias voltage across the varactors. Ansoft's HFSS was used to accurately model and design the SRR structure to minimize the E-field and maximize resonant effects. Both high and low power continuous wave testing verified minimal insertion loss as well as verification that the use of varactors in conjunction with a split ring would effectively shift the resonant frequency of the notch filter.","PeriodicalId":331835,"journal":{"name":"2011 IEEE Pulsed Power Conference","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132312791","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