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Simple Nondestructive Method for the Measurement of Material Permittivity 一种测量材料介电常数的简易无损方法
The Journal of microwave power Pub Date : 1985-01-01 DOI: 10.1080/16070658.1985.11720300
T. Sphicopoulos, V. Teodoridis, F. Gardiol
{"title":"Simple Nondestructive Method for the Measurement of Material Permittivity","authors":"T. Sphicopoulos, V. Teodoridis, F. Gardiol","doi":"10.1080/16070658.1985.11720300","DOIUrl":"https://doi.org/10.1080/16070658.1985.11720300","url":null,"abstract":"Reference LEMA-ARTICLE-1985-010View record in Web of Science Record created on 2006-11-30, modified on 2016-08-08","PeriodicalId":76653,"journal":{"name":"The Journal of microwave power","volume":"5 1","pages":"165-172"},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86131099","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: 16
Fusion Plasma Heating with High Power Microwave and Millimeter Wave Tubes 用大功率微波和毫米波管进行聚变等离子体加热
The Journal of microwave power Pub Date : 1985-01-01 DOI: 10.1080/16070658.1985.11720288
E. McCune
{"title":"Fusion Plasma Heating with High Power Microwave and Millimeter Wave Tubes","authors":"E. McCune","doi":"10.1080/16070658.1985.11720288","DOIUrl":"https://doi.org/10.1080/16070658.1985.11720288","url":null,"abstract":"AbstractKey requirements for microwave power tubes for fusion heating are high efficiency, long life and stability in the presence of load mismatches. Operating frequencies presently range from UHF to 60 GHz, while future machines will operate at frequencies of 2 to 200 GHz with installed heating capacities of tens of megawatts. These requirements can be met with klystrons for frequencies from 1 to 20 GHz and with gyrotrons for 20 to 200 GHz.This paper presents details of existing klystrons and gyrotrons in plasma heating service. Design and performance information is presented for the VKS-8269A and VKC-7849 klystrons which provide 500 kW at 2.45 GHz and 250 kW at 4.6 GHz, respectively. Similar information is provided for the VGA-8050A and VGE-8060A gyrotrons which provide 200 kW at 28 and 60 GHz.The capabilities of klystrons and gyrotrons as a source of microwave power are reviewed. The design considerations controlling power capability and efficiency are described along with comments on reliability with...","PeriodicalId":76653,"journal":{"name":"The Journal of microwave power","volume":"57 1","pages":"131-136"},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74191453","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
Biophysical and cellular effects of microwaves interacting with plant tissues 微波与植物组织相互作用的生物物理和细胞效应
The Journal of microwave power Pub Date : 1985-01-01 DOI: 10.1080/16070658.1985.11720298
M. Bacci, A. Checcucci, G. Checcucci, Maria Rosa Palandri
{"title":"Biophysical and cellular effects of microwaves interacting with plant tissues","authors":"M. Bacci, A. Checcucci, G. Checcucci, Maria Rosa Palandri","doi":"10.1080/16070658.1985.11720298","DOIUrl":"https://doi.org/10.1080/16070658.1985.11720298","url":null,"abstract":"AbstractMicrowave drying of Spinacia oleracea leaves was experimentally compared to electric heating and room temperature drying. Differences in water loss kinetics have been analyzed and a theoretical model has been proposed. In drastically dried leaves strong alterations of the internal morphological structure are present while surface characteristics appear satisfactorily conserved. Chlorophyll content in acetone extracts of microwave dried leaves does not appear as reduced as in conventional methods.","PeriodicalId":76653,"journal":{"name":"The Journal of microwave power","volume":"133 1","pages":"153-159"},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77215967","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
Wave heating and the U.S. magnetic fusion energy program 波浪加热和美国磁聚变能源计划
The Journal of microwave power Pub Date : 1985-01-01 DOI: 10.1080/16070658.1985.11720285
H. Staten
{"title":"Wave heating and the U.S. magnetic fusion energy program","authors":"H. Staten","doi":"10.1080/16070658.1985.11720285","DOIUrl":"https://doi.org/10.1080/16070658.1985.11720285","url":null,"abstract":"AbstractThe U.S. Government’s support of the fusion program is predicated upon the long-term need for the fusion option in our energy future, as well as the near-term benefits associated with developments on the frontier of science and high technology. As a long-term energy option, magnetic fusion energy has the potential to provide an inexpensive, vast, and secure fuel reserve, to be environmentally clean and safe. It has many potential uses, which include production of central station electricity, fuel for fission reactors, synthetic fuels, and process heat for such applications as desalination of sea water. This paper presents an overview of the U.S. Government program for magnetic fusion energy. The goal and objectives of the U.S. program are reviewed followed by a summary of plasma experiments presently under way and the application of wave heating to these experiments.","PeriodicalId":76653,"journal":{"name":"The Journal of microwave power","volume":"3 1","pages":"11-114"},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87589026","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
Temperature runaway of microwave heated materials: Study and Control 微波加热材料温度失控的研究与控制
The Journal of microwave power Pub Date : 1985-01-01 DOI: 10.1080/16070658.1985.11720279
G. Roussy, A. Mercier, J. Thiebaut, Jean-Pierre Vaubourg
{"title":"Temperature runaway of microwave heated materials: Study and Control","authors":"G. Roussy, A. Mercier, J. Thiebaut, Jean-Pierre Vaubourg","doi":"10.1080/16070658.1985.11720279","DOIUrl":"https://doi.org/10.1080/16070658.1985.11720279","url":null,"abstract":"AbstractThe behaviour of a material in a microwave field is di-rectly related to the temperature dependence of the imaginary part of the permittivity of a material. According to the conditions of thermal evacuation chosen, for example convection, its heating is either stable or unstable. For some materials, a critical temperature can be defined which represents an upper limit beyond which the heating is unstable whatever the convective heat transfers. The optimal conditions which can be obtained through the use of an automatic regulation of the heating are, as a consequence, determined. The microwave heating of EPDM rubber is treated as an example.","PeriodicalId":76653,"journal":{"name":"The Journal of microwave power","volume":"13 1","pages":"47-51"},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86118882","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: 32
RF and Microwave Energy for Potential Agricultural Applications 射频和微波能在农业上的潜在应用
The Journal of microwave power Pub Date : 1985-01-01 DOI: 10.1080/16070658.1985.11720292
S. Nelson
{"title":"RF and Microwave Energy for Potential Agricultural Applications","authors":"S. Nelson","doi":"10.1080/16070658.1985.11720292","DOIUrl":"https://doi.org/10.1080/16070658.1985.11720292","url":null,"abstract":"AbstractThe findings of research on possible agricultural applications of radiofrequency (RF) and microwave energy are briefly summarized. Included are discussions on stored-grain insect control, agricultural seed treatment, product processing, and measurement of properties such as moisture content by use of the dielectric properties of agricultural products.","PeriodicalId":76653,"journal":{"name":"The Journal of microwave power","volume":"16 1","pages":"65-70"},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79447486","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: 35
Current Patents: Feature: Solid State Microwave Ovens 现有专利:特征:固态微波炉
The Journal of microwave power Pub Date : 1985-01-01 DOI: 10.1080/16070658.1985.11720303
J. Gerling
{"title":"Current Patents: Feature: Solid State Microwave Ovens","authors":"J. Gerling","doi":"10.1080/16070658.1985.11720303","DOIUrl":"https://doi.org/10.1080/16070658.1985.11720303","url":null,"abstract":"AbstractThe Journal asked John Gerling of Gerling Laboratories, Modesto, California to search for the US. Patents on the solid state microwave oven. We also asked other people for their input and comments.The following section is what we have found so far; readers are invited to send in other relevant material on the subject and the Journal is particularly interested in patents from other countries in this area.In no way is the Journal suggesting solid state microwave ovens are realistic or about to come on the market. In our opinion it will be several years and then in very specialized applications. As but one. example of the economics of the magnetron versus the solid state oscillator, we have been told that one manufacturer in Asia is selling 500 W magnetrons for use in low power microwave ovens with a ten year original-purchaser warranty for US$8.65 - in quantities of 11,000. Even so, it would be very surprising if microwave ovens with solid state power sources were not for sale in this century.","PeriodicalId":76653,"journal":{"name":"The Journal of microwave power","volume":"67 1","pages":"185-191"},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90781153","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
Science and standards. RF-hazards and standards: an historical perspective. 科学与标准。射频危害和标准:一个历史的视角。
The Journal of microwave power Pub Date : 1984-12-01
H P Schwan
{"title":"Science and standards. RF-hazards and standards: an historical perspective.","authors":"H P Schwan","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The following topics are discussed: Standard of safety considerations. Early efforts in bioengineering and biophysics before and after World War II, Work after World War II (1950s), Early interest in hazards, Soviet work and The Tri-Service area and ANSI. The author concludes that the historical development of biophysics and bioengineering, both as a whole and in the specialty area of nonionizing radiation, proceeded in a fairly rational fashion. Formulation of exposure standards in the West was based on the biophysical approach, which prevails in the interdisciplinary sciences involving biomedical and engineering disciplines. No pressure by an \"industrial-military establishment\" was evident in the quest for standards, and the Soviet approach and work were under surveillance from the late 1950's. A continuous interest in athermal effects has persisted since the 1930's. Historical accounts are based on personal experience and study of the literature. They are therefore limited to the extent that such experience and study is incomplete. The author had the good fortune to participate over a professional lifetime in the development of biophysical and biomedical engineering sciences, including those that address nonionizing radiation and Western standards of safety.</p>","PeriodicalId":76653,"journal":{"name":"The Journal of microwave power","volume":"19 4","pages":"225-31"},"PeriodicalIF":0.0,"publicationDate":"1984-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17456855","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
Design and optimization of multi-stepped waveguide applicators for medical applications. 医疗用多阶波导应用器的设计与优化。
The Journal of microwave power Pub Date : 1984-12-01 DOI: 10.1080/16070658.1984.11689373
J M Rebollar, J A Encinar
{"title":"Design and optimization of multi-stepped waveguide applicators for medical applications.","authors":"J M Rebollar,&nbsp;J A Encinar","doi":"10.1080/16070658.1984.11689373","DOIUrl":"https://doi.org/10.1080/16070658.1984.11689373","url":null,"abstract":"<p><p>Modal analysis and scattering matrix concepts at discontinuities have been applied to the design and optimization of open-ended waveguide applicators with several transverse discontinuities. The tissues are simulated by means of two dielectric layers, skin and fat. The results obtained show how important improvements can be obtained in the match between the applicator and the tissues. This method can also be applied to obtain applicators with increased depth of penetration, by controlling the discontinuities of the applicators.</p>","PeriodicalId":76653,"journal":{"name":"The Journal of microwave power","volume":"19 4","pages":"259-67"},"PeriodicalIF":0.0,"publicationDate":"1984-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/16070658.1984.11689373","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17627242","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: 3
Microwave hyperthermia controlled by microwave radiometry: technical aspects and first clinical results. 微波辐射测量控制的微波热疗:技术方面和初步临床结果。
The Journal of microwave power Pub Date : 1984-12-01 DOI: 10.1080/16070658.1984.11689370
M Chivé, M Plancot, G Giaux, B Prevost
{"title":"Microwave hyperthermia controlled by microwave radiometry: technical aspects and first clinical results.","authors":"M Chivé,&nbsp;M Plancot,&nbsp;G Giaux,&nbsp;B Prevost","doi":"10.1080/16070658.1984.11689370","DOIUrl":"https://doi.org/10.1080/16070658.1984.11689370","url":null,"abstract":"<p><p>Microwave systems combining microwave heating generators (434, 915 or 2450 MHz) with microwave radiometers (1-2 GHz or 2-4 GHz) have been used for two years in hyperthermia therapy. Technical aspects (generator, radiometer, applicator), experiments and first clinical results are detailed.</p>","PeriodicalId":76653,"journal":{"name":"The Journal of microwave power","volume":"19 4","pages":"233-41"},"PeriodicalIF":0.0,"publicationDate":"1984-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/16070658.1984.11689370","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17627241","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: 31
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