Journal of the A.I.E.E.最新文献_第2页

Journal of the A.I.E.E. Pub Date : 1932-02-12 DOI: 10.1109/jaiee.1930.6538255

{"title":"Engineering Societies Library","authors":"","doi":"10.1109/jaiee.1930.6538255","DOIUrl":"https://doi.org/10.1109/jaiee.1930.6538255","url":null,"abstract":"The library is a cooperative activity of the American Institute of Electrical Engineers, the American Society of Civil Engineers, the American Institute of Mining and Metallurgical Engineers and the American Society of Mechanical Engineers. It is administered for these Founder Societies by the United Engineering Society, as a public reference library of engineering and the allied sciences. It contains 150,000 volumes and pamphlets and receives currently most of the important periodicals in its field. It is housed in the Engineering Societies Building, 29 West Thirty-ninth St., New York. In order to place the resources of the Library at the disposal of those unable to visit it in person, the Library is prepared to furnish lists of references to engineering subjects, copies or translations of articles, and similar assistance. Charges sufficient to cover the cost of this work are made. The Library maintains a collection of modern technical books which may be rented by members residing in North America. A rental of five cents a day, plus transportation, is charged. The Director of the Library will gladly give information concerning charges for the various kinds of service to those interested, hi asking for information, letters should be made as definite as possible, so that the investigator may understand clearly what is desired. The library is open from 9 a. m. to 10 p. m. on all week days except holidays throughout the year except during July and August when the hours are 9 a. m. to 6 p. m.","PeriodicalId":260406,"journal":{"name":"Journal of the A.I.E.E.","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1932-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127880119","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 Pennsylvania railroad electrification 宾夕法尼亚铁路电气化

Journal of the A.I.E.E. Pub Date : 1931-03-01 DOI: 10.1109/T-AIEE.1931.5055747

J. Duer

引用次数: 1

Initiation of an electrification into operation 电气化开始运行

Journal of the A.I.E.E. Pub Date : 1931-03-01 DOI: 10.1109/T-AIEE.1931.5055776

H. C. Griffith

引用次数: 0

Abridgment of the modern single-phase motor for railroad electrification 铁路电气化用现代单相电动机的简化

Journal of the A.I.E.E. Pub Date : 1930-12-01 DOI: 10.1109/JAIEE.1930.6537540

F. H. Pritchard, F. Konn

引用次数: 0

The development of arc welding apparatus: As indicated by the oscillograph 弧焊设备的发展:用示波器表示

Journal of the A.I.E.E. Pub Date : 1930-12-01 DOI: 10.1109/JAIEE.1930.6537543

C. J. Holslag

引用次数: 0

Abridgment of large hydroelectric generators: The trend in design and capacity 大型水力发电机的精简:设计和容量的趋势

Journal of the A.I.E.E. Pub Date : 1930-12-01 DOI: 10.1109/JAIEE.1930.6537531

M. C. Olson

引用次数: 0

Forecasting seasonal precipitation in California: Its relation to electric power production 预测加州的季节性降水:与电力生产的关系

Journal of the A.I.E.E. Pub Date : 1930-12-01 DOI: 10.1109/JAIEE.1930.6537536

A. F. Gorton

{"title":"Forecasting seasonal precipitation in California: Its relation to electric power production","authors":"A. F. Gorton","doi":"10.1109/JAIEE.1930.6537536","DOIUrl":"https://doi.org/10.1109/JAIEE.1930.6537536","url":null,"abstract":"From an analysis of precipitation in significant districts of California, it is possible to deduce cycles or recurrences of from 2 to 3 years, from 5 to 6 years, and from 20 to 26 years, these being superimposed upon a longer or secular period of from 50 to 60 years. In this manner an estimate can be made of the rainfall to be expected over a relatively long period — as for the next 10 years; at the present moment, indications point towards greater precipitation and run-off in the period 1930–40 than in the preceding decade. Such estimates are of tremendous economic importance to agricultural interests and irrigation projects — such as the Hoover Dam, which involves storage of vast quantities of water for the creation of electric power and for supplying water to Los Angeles and other portions of southern California. In order to forecast for a year or season at a lime, it is necessary to make a statistical study of meteorological elements (including ocean temperatures) over a wide area during the preceding quarter or six months. Predictions of California rainfall based on the temperatures taken at inshore stations on the South Coast during the summer have been sufficiently successful to justify a continuation of the work. By using composite indexes, it is possible to increase the degree of correlation between computed and observed precipitation to a reasonably high figure.","PeriodicalId":260406,"journal":{"name":"Journal of the A.I.E.E.","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1930-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114570952","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

Abridgment of corona loss measurements on a 220-kv. 60-cycle three-phase experimental line 220千伏电晕损耗测量简录。60周期三相实验线

Journal of the A.I.E.E. Pub Date : 1930-12-01 DOI: 10.1109/JAIEE.1930.6537533

J. S. Carroll, Leland H. Brown, D. P. Dinapoli

引用次数: 1

Abridgment of control systems for oil- and gasoline-electric locomotives and cars 石油和汽油电力机车和汽车的控制系统简编

Journal of the A.I.E.E. Pub Date : 1930-12-01 DOI: 10.1109/JAIEE.1930.6537532

N. Freeman

{"title":"Abridgment of control systems for oil- and gasoline-electric locomotives and cars","authors":"N. Freeman","doi":"10.1109/JAIEE.1930.6537532","DOIUrl":"https://doi.org/10.1109/JAIEE.1930.6537532","url":null,"abstract":"A review is given of the development of self-propelled railway vehicles which utilize electrical transmission, paying particular attention to the ways and means of regulating the torque demand on the internal combustion engine which serves as the source of power, and the supply of power to the auxiliaries. Two general designs are discussed and classified as “differential field control” and “torque control.” In differentiating between these two systems, two types of differential field control are outlined, giving their major advantages and limitations. The principle of torque control depending upon constant engine speed is discussed, with enumeration of its advantages over previous schemes, permitting as it does the absorption of the entire engine output for any throttle opening and engine speed selected. The differential field control comprises the minimum amount of apparatus consistent with operation of the car or locomotive and its auxiliaries. In connection with this type of control, however, it should be noted that battery charging and air compressor operation cannot be obtained at both operating and idling speeds of the engine. Torque control equipment functions to vary automatically the generator voltage inversely as the current in such a way that the full available power of the engine is utilized; it ads directly on the generator field and has proved its superiority over methods of regulation involving the exciter field. The availability of the auxiliary generator for compressor operation and battery charging when the engine is running under load represents a marked advance in design. The main generator supplies these auxiliaries during idling. The torque control system meets the requirement of any type of engine.","PeriodicalId":260406,"journal":{"name":"Journal of the A.I.E.E.","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1930-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132717668","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

Abridgment of damper windings for hydroelectric generators 水轮发电机阻尼器绕组的缩短

Journal of the A.I.E.E. Pub Date : 1930-12-01 DOI: 10.1109/JAIEE.1930.6537537

C. Wagner

引用次数: 1