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检索条件"主题词=Laboratories"
33078 条 记 录,以下是1-10 订阅
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Reduction of growth rate in Bi-substituted bubble garnets using MoO3- and V2O5- added flux
IEEE Transactions on Magnetics
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IEEE Transactions on Magnetics 1986年 第5期22卷 1290-1292页
作者: Y. Hosoe K. Andoh T. Ikeda R. Suzuki Central Research Laboratory Hitachi Kokubunji Tokyo Japan
The growth rate of Bi-substituted bubble garnet films grown by liquid phase epitaxy has been reduced by adding MoO3or V2O5to PbO-Bi2O3flux. The growth rate can be reduced by decreasing the solute concentration. We hav... 详细信息
来源: IEEE期刊 IEEE期刊 评论
A Tunable Vacuum-Contained Triode Oscillator for Pulse Service
Proceedings of the IRE
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Proceedings of the IRE 1948年 第2期36卷 234-239页
作者: C.E. Fay J.E. Wolfe Bell Telephone Laboratories Inc. New York N.Y. United States Bell Telephone Laboratories Inc. Kansas State College Manhattan Kan. United States
A tunable push-pull triode oscillator is described in which the vacuum-tube components and the entire r.f. portion of the oscillator circuit are contained in an evacuated metallic envelope. A terminal is provided for ... 详细信息
来源: IEEE期刊 IEEE期刊 评论
Relaxation Phenomena in Planar Ge(Li) Detectors
IEEE transactions on nuclear science;IEEE Transactions on Nu...
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IEEE transactions on nuclear science;IEEE Transactions on Nuclear Science 1968年 第3期15卷 321-326页
作者: P. P. Webb RCA Victor Company Ltd. Research Laboratories Montreal Canada
A study has been made of the changes in net impurity concentration which occur when Ge(Li) diodes are allowed to remain unbiased at or near room temperature (termed relaxation), and when subjected to reheat cycles. Th... 详细信息
来源: IEEE期刊 IEEE期刊 评论
Slime `n' stuff
Investigating: Australian Primary & Junior Science Journal
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Investigating: Australian Primary & Junior Science Journal 第2期14卷 14页
作者: Evergreen, Merrin J. Stamp, Elizabeth E.
Highlights the visit of Australian elementary students to a science laboratory. Science activities and experiments performed by the students.
来源: EBSCOASC期刊 EBSCOASC期刊 评论
A freshman engineering concepts course
Proceedings of the IEEE
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Proceedings of the IEEE 1971年 第6期59卷 932-934页
作者: Bordogna J. Terrell Marshall T.M. Russell R.N. Moore School of Electrical Engineering University of Pennsylvania 19104 Philadelphia Pa United States
A college-level modification of the Engineering Concepts Curriculum Project (ECCP) course, “The Man Made World,” is described, and its use as a framework for a computer-communication based education system is sugges... 详细信息
来源: IEEE期刊 IEEE期刊 评论
Multifrequency HV Capacitive Load Direct Switching Tests in Laboratories Having a Single Frequency Power Supply
IEEE Power Engineering Review
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IEEE Power Engineering Review 1983年 第7期PER-3卷 48-49页
作者: G. Aldrovandi G. Furioli A. Romiti CESI-Centro Elettrotecnico Sperimentale Italiano Milano Italy CESI-Centro Elettrotecnico Sperimentale Italiano Milano Italy CESI-Centro Elettrotecnico Sperimentale Italiano Milano Italy
来源: IEEE期刊 IEEE期刊 评论
A laboratory equipment for the study of moisture processes in thermal insulation materials when placed in a temperature field
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Construction and Building Materials 2008年 第12期22卷 2335-2344页
作者: Vrána, Tomáš tomas.vrana@byv.kth.se Björk, Folke KTH Royal Institute of Technology Department of Civil and Architectural Engineering Division of Building Technology 10044 Stockholm Sweden
The aim of this paper was to describe design and use of a laboratory set-up that makes a very well controlled moisture load to detect material properties of thermal insulation materials. The outer shell of the set-up ... 详细信息
来源: ElsevierScienceDirect期刊 ElsevierScienceDirec... EBSCOASC期刊 EBSCOASC期刊 评论
Joseph Henry, Pioneer in Space Communication
Proceedings of the IRE
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Proceedings of the IRE 1942年 第6期30卷 261-266页
作者: W.F. Magie Dean Princeton University Princeton New Jersey United States
Joseph Henry, while a teacher at the Albany Academy, brought the electromagnet to its present form and distinguished two types, the “quantity” magnet and the “intensity” magnet. He used the intensity magnet in a c... 详细信息
来源: IEEE期刊 IEEE期刊 评论
Post-arc current in high voltage SF/sub 6/ circuit-breakers when breaking at up to 63 kA
IEEE Transactions on Power Delivery
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IEEE Transactions on Power Delivery 1989年 第2期4卷 1056-1062页
作者: B. Blez C. Guilloux Electr. de France Paris France Electr. de France Paris France
Post-arc current measurements were made on a high-voltage SF/sub 6/ circuit breaker. A pyrotechnic device was used to protect the measurement shunt. The tests, performed at high current values between 40 and 63 kA, ga... 详细信息
来源: IEEE期刊 IEEE期刊 评论
An Undergraduate Course on Operating Systems Principles
Computer
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Computer 1972年 第1期5卷 40-59页
The following article is a condensation of a COSINE task force report on an undergraduate course in operating systems principles. The report appeared in its entirety in June, 1971, and is receiving wide circulation in... 详细信息
来源: IEEE期刊 IEEE期刊 评论