Pub Date : 2022-12-27DOI: 10.4324/9781315779607-22
E. P. Lovejoy
Today it is apparently permitted that one take an occasional glance at the things that have been left behind in the climb up from the past without suffering the penalties imposed upon the ancients. Pillars of salt have given way to a show of reason. Foresight, is, however, denied to an amazing degree.
{"title":"Looking backward","authors":"E. P. Lovejoy","doi":"10.4324/9781315779607-22","DOIUrl":"https://doi.org/10.4324/9781315779607-22","url":null,"abstract":"Today it is apparently permitted that one take an occasional glance at the things that have been left behind in the climb up from the past without suffering the penalties imposed upon the ancients. Pillars of salt have given way to a show of reason. Foresight, is, however, denied to an amazing degree.","PeriodicalId":260406,"journal":{"name":"Journal of the A.I.E.E.","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131117892","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}
Pub Date : 2018-10-08DOI: 10.1201/9781315273426-42
F. C. Hanker
This paper briefly reviews the development of power transmission, pointing out the power limitations of long distance, high capacity transmission systems. The paper serves as a general introduction to a group of papers, giving the results of analytical and experimental investigations of the power limits and stability of transmission systems. This group of papers which is to be presented at the A. I. E. E. Midwinter Convention includes, in addition to this paper by Mr. Hanker, papers by R. D. Evans and H. K. Sels; R. D. Evans and R. C. Bergvall; and C. L. Fortescue and C. F. Wagner.
本文简要回顾了电力传输的发展，指出了长距离、大容量输电系统的功率限制。本文作为一组论文的总体介绍，给出了输电系统功率极限和稳定性的分析和实验研究结果。这组将在a.i.e.e.仲冬大会上提交的论文，除了汉克先生的论文外，还包括R. D. Evans和H. K. Sels的论文;R. D. Evans和R. C. Bergvall;c·l·福特斯克和c·f·瓦格纳。
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The use of inductive coupling between the tuned grid circuit and plate circuit of a radio-receiving circuit network employing an electron tube has been extensively used for the amplification of received signals since its discovery by K. H. Armstrong. Using simple alternating-current theory this paper shows that the amplification produced by this type of regeneration in an amplifying circuit network can be considered as being caused by a reduction in the resistance of the tuned circuit. The current amplification produced in the tuned circuit for any value of impressed radiofrequency signal is = Ri {R ~ a)-c^r2 where R x is the resistance of the tuned circuit, M is the mutual inductance which produces the feed back, n the voltage amplification factor of the tube , R2 the total resistance of the plate circuit, C 1 the capacity in the tuned circuit across which the tube is connected, a the reduction in resistance produced by the capacitive feed back through the tube. The voltage of the grid was assumed to be negative at all times. The above equation was completely confirmed by experiment. The current in the tuned circuit with and without regeneration was measured by means of an electrontube voltmeter which measured the drop of potential across the capacity C l in the tuned circuit. The reduction in resistance a caused by capacitive feed back was obtained experimentally by the resistance variation method. CONTENTS. Page,
采用电子管的无线电接收电路网络的调谐栅格电路和板电路之间的电感耦合的使用，自从被k.h.阿姆斯特朗发现以来，已被广泛用于放大接收信号。本文利用简单的交流理论表明，在放大电路网络中，这种再生产生的放大可以认为是由调谐电路的电阻减小引起的。当前放大生产的任何值的调谐电路的印象射频信号= Ri {R ~) - C ^ r2, x是调谐电路的电阻,M是生产反馈的互感,n管的电压放大系数r2板电路的总电阻,C 1调谐电路的能力在管连接,减少阻力产生的电容反馈通过管。假定电网的电压在任何时候都是负的。实验完全证实了上述方程。用电子管电压表测量了有和没有再生的调谐电路中的电流，电子管电压表测量了调谐电路中横跨容量c1的电位降。通过电阻变分法实验得到了电容反馈引起的电阻降低。内容。页面,
{"title":"A quantitative study of regeneration by inductive feed back","authors":"C. Jolliffe, J. A. Rodman","doi":"10.6028/nbsscipaper.170","DOIUrl":"https://doi.org/10.6028/nbsscipaper.170","url":null,"abstract":"The use of inductive coupling between the tuned grid circuit and plate circuit of a radio-receiving circuit network employing an electron tube has been extensively used for the amplification of received signals since its discovery by K. H. Armstrong. Using simple alternating-current theory this paper shows that the amplification produced by this type of regeneration in an amplifying circuit network can be considered as being caused by a reduction in the resistance of the tuned circuit. The current amplification produced in the tuned circuit for any value of impressed radiofrequency signal is = Ri {R ~ a)-c^r2 where R x is the resistance of the tuned circuit, M is the mutual inductance which produces the feed back, n the voltage amplification factor of the tube , R2 the total resistance of the plate circuit, C 1 the capacity in the tuned circuit across which the tube is connected, a the reduction in resistance produced by the capacitive feed back through the tube. The voltage of the grid was assumed to be negative at all times. The above equation was completely confirmed by experiment. The current in the tuned circuit with and without regeneration was measured by means of an electrontube voltmeter which measured the drop of potential across the capacity C l in the tuned circuit. The reduction in resistance a caused by capacitive feed back was obtained experimentally by the resistance variation method. CONTENTS. Page,","PeriodicalId":260406,"journal":{"name":"Journal of the A.I.E.E.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125709083","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}
Pub Date : 1983-10-01DOI: 10.1109/jaiee.1926.6537344
E. Busemann-Sokole, T. Cradduck
{"title":"National electrical manufacturers association","authors":"E. Busemann-Sokole, T. Cradduck","doi":"10.1109/jaiee.1926.6537344","DOIUrl":"https://doi.org/10.1109/jaiee.1926.6537344","url":null,"abstract":"","PeriodicalId":260406,"journal":{"name":"Journal of the A.I.E.E.","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121753128","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}
Pub Date : 1968-02-23DOI: 10.1109/jaiee.1927.6534994
J. H. Leeming
The Bureau of Standards has just issued a paper by F. W. Dunmore, which describes the development of a portable radio direction finder with but two controls — one for tuning and one for balancing. This direction finder operates over the frequency band from 90 to 7700 kilocycles (3300 to 39 meters). The direction finder is of the simple rotating coil type. The receiving set is of the superheterodyne type, with the controls reduced to one by the use of a cam-operated condenser. The wide frequency range is made possible by a set of seven interchangeable plug-in direction finder coils, each with a corresponding heterodyne generator coil and cam for operating the auxiliary tuning condensers.
{"title":"A portable radio direction finder","authors":"J. H. Leeming","doi":"10.1109/jaiee.1927.6534994","DOIUrl":"https://doi.org/10.1109/jaiee.1927.6534994","url":null,"abstract":"The Bureau of Standards has just issued a paper by F. W. Dunmore, which describes the development of a portable radio direction finder with but two controls — one for tuning and one for balancing. This direction finder operates over the frequency band from 90 to 7700 kilocycles (3300 to 39 meters). The direction finder is of the simple rotating coil type. The receiving set is of the superheterodyne type, with the controls reduced to one by the use of a cam-operated condenser. The wide frequency range is made possible by a set of seven interchangeable plug-in direction finder coils, each with a corresponding heterodyne generator coil and cam for operating the auxiliary tuning condensers.","PeriodicalId":260406,"journal":{"name":"Journal of the A.I.E.E.","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1968-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125179145","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}
Pub Date : 1950-11-01DOI: 10.1109/jaiee.1925.6536435
荒川 康夫, 内崎 敏
The 1925 Edition of the National electrical code has now been released by the National Board of Fire Underwriters. The actual date when it supersedes the 1923 Edition in the review of electric wiring can be determined by inquiry of the authority by whom inspections are made in each respective locality.
{"title":"National electrical code","authors":"荒川 康夫, 内崎 敏","doi":"10.1109/jaiee.1925.6536435","DOIUrl":"https://doi.org/10.1109/jaiee.1925.6536435","url":null,"abstract":"The 1925 Edition of the National electrical code has now been released by the National Board of Fire Underwriters. The actual date when it supersedes the 1923 Edition in the review of electric wiring can be determined by inquiry of the authority by whom inspections are made in each respective locality.","PeriodicalId":260406,"journal":{"name":"Journal of the A.I.E.E.","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1950-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121344969","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}
Pub Date : 1942-07-17DOI: 10.1109/jaiee.1925.6536159
Experimental work in the production of sponge iron, conducted by the Department of the Interior at the Seattle, Wash., experiment station of the Bureau of Mines, has advanced to the point where it is believed that industrial applications of the process can be safely considered for the production of sponge iron as a metallurgical reagent for the precipitation of copper, lead, and numerous other metals from solution. In those regions remote from larger iron and steel making centers and where electric energy can be had at a comparatively cheap rate, sponge iron can also be converted into iron and steel products by melting in the electric furnace.
{"title":"Production of sponge iron","authors":"","doi":"10.1109/jaiee.1925.6536159","DOIUrl":"https://doi.org/10.1109/jaiee.1925.6536159","url":null,"abstract":"Experimental work in the production of sponge iron, conducted by the Department of the Interior at the Seattle, Wash., experiment station of the Bureau of Mines, has advanced to the point where it is believed that industrial applications of the process can be safely considered for the production of sponge iron as a metallurgical reagent for the precipitation of copper, lead, and numerous other metals from solution. In those regions remote from larger iron and steel making centers and where electric energy can be had at a comparatively cheap rate, sponge iron can also be converted into iron and steel products by melting in the electric furnace.","PeriodicalId":260406,"journal":{"name":"Journal of the A.I.E.E.","volume":"175 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1942-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114268054","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}
Investigating the radiation from the carbon arc is a matter of great importance in the treatment of diseases by exposure to light, especially sunlight. However, sunlight can not always be obtained, hence the demand for an artificial source approaching sunlight in its characteristics.
{"title":"Radiation from carbon arcs","authors":"H. Macpherson","doi":"10.1063/1.1714845","DOIUrl":"https://doi.org/10.1063/1.1714845","url":null,"abstract":"Investigating the radiation from the carbon arc is a matter of great importance in the treatment of diseases by exposure to light, especially sunlight. However, sunlight can not always be obtained, hence the demand for an artificial source approaching sunlight in its characteristics.","PeriodicalId":260406,"journal":{"name":"Journal of the A.I.E.E.","volume":"20 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1942-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130818662","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}
{"title":"Engineering literature","authors":"","doi":"10.1109/ee.1933.6430603","DOIUrl":"https://doi.org/10.1109/ee.1933.6430603","url":null,"abstract":"","PeriodicalId":260406,"journal":{"name":"Journal of the A.I.E.E.","volume":"86 1","pages":"733-733"},"PeriodicalIF":0.0,"publicationDate":"1933-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132783747","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}
Pub Date : 1932-06-24DOI: 10.1109/jaiee.1925.6534610
R. Palmer
The Fall Meeting of the North Atlantic Section of the American society of agricultural engineers will be held December 10–12 inclusive at Schenectady, New York with headquarters at the Hotel Van Curler. Problems under discussion will be those relating to Federal Funds for agricultural education, its organization under various States and Federal agencies, rural electrification, farm power machinery and farm building with reference to remodeling sanitation and upkeep. The address of welcome will be delivered by F. A. Wirt.
美国农业工程师学会北大西洋分会秋季会议将于12月10日至12日(含12日)在纽约斯克内克塔迪举行，总部设在范·库勒酒店。讨论的问题将涉及用于农业教育的联邦基金、在各州和联邦机构下的组织、农村电气化、农场动力机械和涉及改造卫生和维护的农场建筑。欢迎致辞将由F. A. Wirt致。
{"title":"American society of agricultural engineers","authors":"R. Palmer","doi":"10.1109/jaiee.1925.6534610","DOIUrl":"https://doi.org/10.1109/jaiee.1925.6534610","url":null,"abstract":"The Fall Meeting of the North Atlantic Section of the American society of agricultural engineers will be held December 10–12 inclusive at Schenectady, New York with headquarters at the Hotel Van Curler. Problems under discussion will be those relating to Federal Funds for agricultural education, its organization under various States and Federal agencies, rural electrification, farm power machinery and farm building with reference to remodeling sanitation and upkeep. The address of welcome will be delivered by F. A. Wirt.","PeriodicalId":260406,"journal":{"name":"Journal of the A.I.E.E.","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1932-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130427340","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}
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