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pro vyhledávání: '"N J Keen"'
Publikováno v:
Journal of Applied Chemistry. 16:248-252
A process has been studied in which Zircaloy-uranium alloy is dissolved in a mixture of hydrofluoric acid and potassium fluoride. The uranium can be precipitated with an efficiency of 99.9%, as a complex potassium uranium fluoride, together with some
Publikováno v:
Molecular and Cellular Biology. 13:3434-3444
Sequence data are presented for the Saccharomyces cerevisiae TAP1 gene and for a mutant allele, tap1-1, that activates transcription of the promoter-defective yeast SUP4 tRNA(Tyr) allele SUP4A53T61. The degree of in vivo activation of this allele by
Autor:
N. J. Keen
Publikováno v:
16th International Conference on Infrared and Millimeter Waves.
Publikováno v:
SPIE Proceedings.
The telescope effective focal length places major constraints upon the ability to design and build low loss quasi-optical components in the millimeter and submillimeter wavelength range. In this paper we discuss the principle problems involved in the
Publikováno v:
1983 13th European Microwave Conference.
This paper reports a two channel, coherent holography receiver for the measurement of the two dimensional reflector profile of the 30 m millimeter radio telescope at Pico Veleta, Spain. Using a phase and frequency locked Gunn oscillator as local osci
Publikováno v:
Journal of Physics E: Scientific Instruments. 6:979-980
A cheap and simple waveguide termination is described, for thermal calibrations in the frequency range 2.65 to 2.75 GHz, for all temperatures between 77 K and ambient. An important feature of this termination is the very compact microwave absorbed co