Zobrazeno 1 - 10
of 10
pro vyhledávání: '"R. J. Nielsen"'
Autor:
R. J. Nielsen, N. J. McDowell
Publikováno v:
Structures Congress 2006.
This paper describes a finite element model that has been developed to calculate the live load response of a major steel trussed-arch bridge in Idaho. Any truck configuration (axle loads and spacing) can be modeled as a moving load along one of sever
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9738e4afccfd842968089b72d45b479
https://doi.org/10.1061/40889(201)146
https://doi.org/10.1061/40889(201)146
Publikováno v:
Bell System Technical Journal. 42:1765-1816
Objectives in development of the solar plant for the Telstar spacecraft were to provide a power source which would withstand launching stresses and the expected space environment, with optimum end-of-life performance. Radiation damage to the silicon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79e8955da33cbfbb626c058d92077c92
https://doi.org/10.1002/j.1538-7305.1963.tb04050.x
https://doi.org/10.1002/j.1538-7305.1963.tb04050.x
Publikováno v:
Review of Scientific Instruments. 29:855-859
Special optical, mechanical, and electronic techniques have been combined in a new instrument—the microdeviometer—in which a beam of light and two optical gratings are used to obtain a very accurate scale of distance. The location, with respect t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50fc07ada1782abc5a34c1f8d0f9d13d
https://doi.org/10.1063/1.1716020
https://doi.org/10.1063/1.1716020
Autor:
J. G. Skinner, B. Nevis, W. A. Schlegel, D. S. Alles, C. E. Stout, J. W. Elek, F. L. Howland, R. J. Nielsen
Publikováno v:
Bell System Technical Journal. 49:2145-2177
We discuss in this paper the design of a new high-precision step-and-repeat camera with respect to its optics, mechanical design, control system, and control computer program. One micrometer images from a 5-mm-square lens field can be placed within 0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d30e64b42dc64109265cc6b9e8c6e0f7
https://doi.org/10.1002/j.1538-7305.1970.tb02519.x
https://doi.org/10.1002/j.1538-7305.1970.tb02519.x
Autor:
R. J. Nielsen
The low frequency noise produced in generating a class A-D signal is studied. Noise levels are calculated using both computer models and analytic techniques. Although the treatment is not rigorous both methods show excellent agreement. The results in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5ad0dbd2be00e6464f944bd21fffce2
https://doi.org/10.21236/ada203259
https://doi.org/10.21236/ada203259
Publikováno v:
IRE Transactions on Electron Devices. 5:112-113
Optical and electronic techniques have been combined in a precise automatic instrument which rapidly measures and simultaneously records small deviations from the ideal in structures intended to be perfectly periodic. The instrument was primarily dev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63d71931acfa6db7564324e556e29d03
https://doi.org/10.1109/t-ed.1958.14363
https://doi.org/10.1109/t-ed.1958.14363
Autor:
M. C. Karamargin, R. J. Nielsen
Publikováno v:
The Journal of the Acoustical Society of America. 37:1190-1191
An experiment designed to study the effect that an ocean medium has on determining bearing of a sound source was conducted in deep water off Bermuda in the fall of 1964. The source was at a depth of about 1800 ft and two closely spaced receivers at a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::485623a52a83694e62c0566314b9b1b1
https://doi.org/10.1121/1.1939469
https://doi.org/10.1121/1.1939469
Autor:
C. J. Biddick, J. H. Bruning, D. R. Bush, D. S. Alles, R. J. Nielsen, R. M. Richman, J. Giacchi, S. J. Barna, G. J. W. Kossyk
Publikováno v:
Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures. 5:57
A hydraulic X–Y stage system for application in electron beam lithography machines is described. The X–Y table is supported on hydrostatic bearings and is driven hydraulically. This system operates in a vacuum and is used in the AT&T Bell Laborat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82f41db2399a2d09c5807f9685e83335
https://doi.org/10.1116/1.583927
https://doi.org/10.1116/1.583927
Autor:
M. G. R. Thomson, R. Liu, D. P. Rosenfeld, D. E. A. Smith, E. A. Gere, C. M. Rose, T. J. Mulrooney, D. S. Alles, N. Paras, R. J. Nielsen, F. Leone, C. J. Biddick, J. T. Clemens, L. R. Harriott, R. M. Richman, R. J. Collier, J. H. Bruning
Publikováno v:
Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures. 5:47
EBES4 is an electron‐beam exposure machine designed for accurate submicron lithography with good throughput. It can write on optical and x‐ray mask substrates and directly on semiconductor substrates. Standard pattern data are preprocessed using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0eea6a3180f3cea2adc17a17fa9b8e23
https://doi.org/10.1116/1.583925
https://doi.org/10.1116/1.583925
Publikováno v:
The Journal of the Acoustical Society of America. 75:S63-S63
A large increase in ambient noise spectrum level is observed in the open ocean at low frequencies. Most investigators have suggested wind and wave reduced (surface coupled) mechanisms. [Kibblewhite et al., J. Acoust. Soc. Am. Suppl. 1 74, S121 (1983)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05e4d9127ee5c97beb71397c0297decf
https://doi.org/10.1121/1.2021535
https://doi.org/10.1121/1.2021535