Radiometry of dynamics of water-medium temperature profile by internal-wave transmission

1994 ◽  
Vol 36 (3-4) ◽  
pp. 139-143 ◽  
Author(s):  
K. P. Gaikovich ◽  
A. N. Reznik ◽  
R. V. Troiskii
1965 ◽  
Vol 87 (3) ◽  
pp. 397-402 ◽  
Author(s):  
W. H. Giedt ◽  
J. T. Chambers

An experimental evaluation of a dual-element transducer for measuring gas stream temperatures is described. Temperatures are inferred from simultaneous temperature-time measurements of two elements of identical geometry but unequal thermal capacity. The major effort was devoted to measurements in medium-temperature streams to prove the feasibility of the method. The accuracy of the results was within ±6 percent for measurements from 1950 to 2250 deg F, which was the best experimental accuracy predicted by an earlier analysis of the concept. A limited number of measurements were made in an oxyacetylene flame. The indicated flame temperatures were 4700 and 4789 deg F which agree within 5 percent with measurements made by sodium-line-reversal techniques for equivalent combustion conditions. A gas-stream temperature profile measurement is also presented.


2013 ◽  
Vol 5 (2) ◽  
pp. 383-392 ◽  
Author(s):  
M. N. Islam ◽  
M. A. Hossain

This investigation deals with the mortality rate of fish seeds (Labeo rohita) during traditional transportation system; to evaluate the effects of loading density with time scale under different water medium; temperature effect with relation to fry size and oxygen consumption; and the effect of saline water bath before transportation. Mortality rates were significantly increased with time scale and loading density under different water medium. Higher mortality was observed at 400 g L-1 loading density (river water 82%, pond water 70% and tubewell water 67.5%) than at 200 g L-1 and 300 g L-1 loading density after 24h. Oxygen consumption rate increased signi?cantly with increasing temperature and decreased significantly with increasing fry body weight. Therefore, mortality rate could decrease (22%) if fish fry are bathed in saline water before journey and tubewell water can be use as a medium for long distance transportation.Keywords: Mortality; Fish seeds; Oxygen consumption; Transportation.© 2013 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.doi: http://dx.doi.org/10.3329/jsr.v5i2.10572         J. Sci. Res. 5 (2), 383-392 (2013)


2007 ◽  
Vol 19 (1) ◽  
pp. 016601 ◽  
Author(s):  
J. T. Nault ◽  
B. R. Sutherland

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