Experimental Study of Zone Refining of the Binary System Triphenyl Antimony-benzoic Acid PDF Download
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Author: Marvin S. Brooks
Publisher:
ISBN:
Category : Antimony
Languages : en
Pages : 94
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Book Description
An experimental study on the zone refining of the binary system triphenyl antimony-benzoic acid is described. The isotope Sb124, which is a strong gamma emitter, was employed as a tracer; this allowed a rapid in situ nondestructive analysis, closely spaced experimental points, and the opportunity to study distribution as a function of varying experimental conditions. With the aid of computers (IBM 7090 and IBM 7044) apparent k's were calculated and the experimental data compared with those predicted from various mathematical models. (Author).
Author: Marvin S. Brooks
Publisher:
ISBN:
Category : Antimony
Languages : en
Pages : 94
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Book Description
An experimental study on the zone refining of the binary system triphenyl antimony-benzoic acid is described. The isotope Sb124, which is a strong gamma emitter, was employed as a tracer; this allowed a rapid in situ nondestructive analysis, closely spaced experimental points, and the opportunity to study distribution as a function of varying experimental conditions. With the aid of computers (IBM 7090 and IBM 7044) apparent k's were calculated and the experimental data compared with those predicted from various mathematical models. (Author).
Author: Marvin S. Brooks
Publisher:
ISBN:
Category : Antimony
Languages : en
Pages : 86
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Book Description
An experimental study on the zone refining of the binary system triphenyl antimony - naphthalene is described. The isotope Sb124, which is a strong gamma emitter, was employed as a tracer; this allowed a rapid in situ nondestructive analysis, closely spaced experimental points, and the opportunity to study distribution as a function of varying experimental conditions. With the aid of computers apparent k's were calculated and the experimental data compared with those predicted from various mathematical models. (Author).
Author: Marvin S. Brooks
Publisher:
ISBN:
Category : Antimony compounds
Languages : en
Pages : 114
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Book Description
The results of an experimental study of zone refining of the binary system triphenyl antimony-biphenyl are presented. The isotope Sb124, which is a strong gamma emitter, was employed as a tracer; this allowed a rapid in situ nondestructive analysis, closely spaced experimental points, and the opportunity to study distribution as a function of varying experimental conditions. With the aid of computers (IBM 7090 and IBM 7044) apparent (distribution coefficients) were calculated and the experimental data compared with those predicted from various mathematical models. (Author).
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 254
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Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 684
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Author: Albert D. Johnson
Publisher:
ISBN:
Category : Crystals
Languages : en
Pages : 42
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Book Description
Thermoluminescence provides a method for studying properties of those crystalline imperfections which behave as electron traps and recombination centers in wide bandgap materials. This approach, however, has been used relatively little, possibly due to the fact that the shapes and intensities of thermoluminescent glow curves are functions of several experimental parameters and are often complicated by the overlapping of a number of individual glow peaks. In the present work, experimental parameters were isolated and some of their effects on thermoluminescent glow curves were analyzed. This yielded information on activation energies associated with trapping levels, the nature of the kinetics involved in electron transitions, and electron retrapping. A Type II-a diamond, which has a wide distribution of thermoluminescent glow peaks, was used in this work. (Author).
Author: Neil J. Bershad
Publisher:
ISBN:
Category : Decision theory
Languages : en
Pages : 32
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Book Description
It is well known that in communicating over randomly time-varying channels, a receiver which performs a channel measurement can make a better decision than one that does not. It is shown that a channel-measuring system improves system performance even when the channel characteristics are fixed only during the present message interval. The randomly time-varying channel studied is that of a Rayleigh fading medium with independently fading mark and space channels whose fading is fixed over one baud interval but is independent from baud to baud. The transmission system is a modified frequency shift keying (FSK) system such that during a portion of a baud interval the mark and space frequencies are always transmitted so as to act as reference signals. For the above system, the following characteristics have been established: (a) Optimum receiver configuration, (b) Optimum ratio alpha of information energy to total signal energy as a function of total available signal-to-noise ratio for a single fading channel, (c) Asymptotic optimum alpha for an M-diversity channel, (d) Error probabilities for (b) and asymptotic error probabilities for (c) for alpha opt as a function of total signal-to-noise ratio. The asymptotic results show that by using reference techniques the order of diversity is effectively doubled. (Author).
Author: Charles F. Hobbs
Publisher:
ISBN:
Category : Error analysis (Mathematics)
Languages : en
Pages : 14
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Author: R. C. Sagalyn
Publisher:
ISBN:
Category : Atmosphere, Upper
Languages : en
Pages : 30
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Author: Marvin L. White
Publisher:
ISBN:
Category : Magnetohydrodynamic instabilities
Languages : en
Pages : 22
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Book Description
