摘要:

Magnetic cores with a rectangular hysteresis loop are used in a storage system which requires no mechanical motion and is permanent. The binary digit ``1'' is stored as a positive residual flux, and the binary digit ``0'' as a residual flux in the opposite direction. When a negative probing field is applied to the core, a large voltage is induced in another winding if the digit stored has been a ``1,'' and very small voltage if it has been a ``0.'' The induced voltage in the former case is large enough to magnetize another core of identical construction. Binary digits can thus be transferred from one core into another. Many cores are arranged in tandem to form an information delay line. Binary digits can be advanced along the line step by step. The present upper limit of the speed of propagation is about 35,000 digits per second, and there is no lower limit.

ISSN:0021-8979    

DOI:10.1063/1.1699419

出版商:AIP    

年代:1950

数据来源: AIP

摘要:

In the analysis of beams which are supported elastically along their entire length, it is usually assumed that the elastic support is provided either by a series of independent springs, or by a completely continuous elastic medium.The present paper proposes a method of solution for the intermediate cases, that is, for foundations of partial continuity, by assuming that such foundations may be represented by beams imbedded into an otherwise discontinuous supporting material. In a foundation of this type, there are three independent elastic constants, the resilience of the discontinuous spring layers above and below the beam that is within the foundation, and the flexural rigidity of the foundation beam itself. By changing the values of these three constants, elastic foundations of a wide variety may be produced or, conversely, the constants may be adjusted in such a manner as to represent approximately the characteristics of any given elastic supporting medium.In the paper a general procedure is presented from which solutions can be derived for the bending of beams on such foundations under any loading or end conditions. The method is illustrated by examples showing the range of pressure distributions that may occur under beams supported on foundations of this type.

ISSN:0021-8979    

DOI:10.1063/1.1699420

出版商:AIP    

年代:1950

数据来源: AIP

ISSN:0021-8979    

DOI:10.1063/1.1699421

出版商:AIP    

年代:1950

数据来源: AIP

ISSN:0021-8979    

DOI:10.1063/1.1699424

出版商:AIP    

年代:1950

数据来源: AIP

ISSN:0021-8979    

DOI:10.1063/1.1699425

出版商:AIP    

年代:1950

数据来源: AIP

ISSN:0021-8979    

DOI:10.1063/1.1699426

出版商:AIP    

年代:1950

数据来源: AIP

ISSN:0021-8979    

DOI:10.1063/1.1699427

出版商:AIP    

年代:1950

数据来源: AIP

ISSN:0021-8979    

DOI:10.1063/1.1699428

出版商:AIP    

年代:1950

数据来源: AIP

ISSN:0021-8979    

DOI:10.1063/1.1699429

出版商:AIP    

年代:1950

数据来源: AIP

ISSN:0021-8979    

DOI:10.1063/1.1699430

出版商:AIP    

年代:1950

数据来源: AIP