The basis of the choice of optimum temperature regime of the current converter and dimensions of the thermion switches

2000 ◽  
Author(s):  
V. Onufryev ◽  
M. Marakhtanov ◽  
S. Muboyadzyan ◽  
V. Senyavsky
Keyword(s):  
Temperature Regime ◽  
Optimum Temperature ◽  
Current Converter

Maintenance of a Walleye, Stizostedion vitreum vitreum, Fishery in a Eutrophic Reservoir

1977 ◽  
Vol 34 (10) ◽  
pp. 1725-1733 ◽  
Author(s):  
Walter T. Momot ◽  
Jack Erickson ◽  
Frederick Stevenson
Keyword(s):  
Temperature Regime ◽  
Geographical Location ◽  
Maximum Growth ◽  
Gizzard Shad ◽  
Optimum Temperature ◽  
Poor Growth ◽  
Intensive Exploitation ◽  
Spawning Stock ◽  
Preferred Temperatures ◽  
Poor Recruitment

Hoover Reservoir, a very eutrophic environment, produces a successful fishery for walleye. However the population can only be sustained by stocking due to the absence of high quality summer habitat, intensive exploitation, poor recruitment of most natural year-classes, and poor growth of adult walleye. The oxygen temperature regime brought about by eutrophication forces the adult walleye to live at an above optimum temperature regime for maximum growth during the summer months. Because of the climate and geographical location, the preferred temperatures of the desired prey, young gizzard shad, are far above that of the adult walleye. This makes the shad less accessable to predation for a large portion of the day further reducing the growth of older walleye. Poor recruitment of large natural year-classes results from the absence of gizzard shad fry which spawn much later than walleye, at the time larval walleye convert from a planktonic to a piscivorous feeding habit. Large year-classes of walleye are produced in years when fry were stocked. Stocked fry were produced in hatcheries from spawn obtained at the reservoir. Fry were stocked in the reservoir just at or in advance of shad spawning, whereas in most years naturally produced fry appeared well in advance of shad spawning. This delayed appearance of stocked walleye fry probably accounts for their successful year-class production. This walleye spawning stock had an estimated mean biomass of 13.6 kg/ha and a mean annual production of 2.2 kg/ha between 1967 and 1973. Key words: Hoover Reservoir — Ohio, Percidae, Stizostedion, management, fry stocking

Stabilization of the optimum temperature regime of industrial CO2 lasers

1995 ◽  
Author(s):  
Stefan G. Bachvarov ◽  
Stoyan K. Dinoev ◽  
Emilia G. Entcheva
Keyword(s):  
Temperature Regime ◽  
Optimum Temperature ◽  
Co2 Lasers

scholarly journals Early ontogeny of Clarias gariepinus and its features under artificial cultivation at different temperature conditions

2021 ◽  
Vol 937 (3) ◽  
pp. 032035
Author(s):  
Uliyana Alexandrova ◽  
Andrey Kotelnikov ◽  
Svetlana Kotelnikova ◽  
Angelina Firsova ◽  
Anton Kuzov
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Temperature Regime ◽  
Digestive System ◽  
Clarias Gariepinus ◽  
Early Ontogeny ◽  
Larval Period ◽  
Optimum Temperature ◽  
Temperature Regimes ◽  
The Central Nervous System

Abstract The influence of different temperature regimes (28 ° C and 25 ° C) on the early ontogeny of Clarias gariepinus was studied. Heterochronism in the development of the main systems has been provided: the central nervous system and the digestive system are actively developing, the formation of the cardiovascular, respiratory and genitourinary systems occurs more slowly. The duration of embryonic development within the membranes was 18-22 hours. The initial stages of development changed insignificantly with decreasing temperature. The duration of the larval period was 14 days at 28 ° C and 15 days at 25 ° C. The fry period lasted 30 and 32 days, respectively. In terms of the duration of embryogenesis and the timing of the release of free embryos, the indicators did not go beyond the norm. The percentage of ugly embryos (underdevelopment of the operculum, underdevelopment of the tail, head and fins) was small and amounted to 3.2%, in the first and 4% in the second temperature regime. Incubation at temperatures below the optimum temperature of this species makes it possible to obtain viable offspring, adapted to the change in temperature regime.

scholarly journals CALCULATION OF THE OPTIMUM TEMPERATURE REGIME FOR THE OXIDATION REACTION OF CARBON MONOXIDE

2017 ◽  
pp. 50-54
Author(s):  
Элисо Иремадзе ◽  
Eliso Iremadze ◽  
Кристина Хачапуридзе ◽  
Kristina Hachapuridze
Keyword(s):  
Carbon Monoxide ◽  
Temperature Regime ◽  
Oxidation Reaction ◽  
Optimum Temperature

Symbiotic Stars at Optical, Infrared and Radio Wavelengths

1979 ◽  
Vol 46 ◽  
pp. 125-149 ◽  
Author(s):  
David A. Allen
Keyword(s):  
Temperature Regime ◽  
Type Star ◽  
Stellar Systems ◽  
Symbiotic Stars ◽  
Lower Excitation ◽  
Definition Of ◽  
Original Type

No paper of this nature should begin without a definition of symbiotic stars. It was Paul Merrill who, borrowing on his botanical background, coined the termsymbioticto describe apparently single stellar systems which combine the TiO absorption of M giants (temperature regime ≲ 3500 K) with He II emission (temperature regime ≳ 100,000 K). He and Milton Humason had in 1932 first drawn attention to three such stars: AX Per, CI Cyg and RW Hya. At the conclusion of the Mount Wilson Ha emission survey nearly a dozen had been identified, and Z And had become their type star. The numbers slowly grew, as much because the definition widened to include lower-excitation specimens as because new examples of the original type were found. In 1970 Wackerling listed 30; this was the last compendium of symbiotic stars published.

SYSTEM ANALYSIS OF GEOLOGICAL-AND-PRODUCTION DATA FOR PREDICTION TEMPERATURE REGIME OF GAS WELLS OPERATION USING A GEOLOGO-TECHNOLOGICAL MODEL

2015 ◽  
pp. 56-61
Author(s):  
A. V. Kustyshev ◽  
A. V. Krasovskii ◽  
E. S. Zimin ◽  
D. A. Tatarikov
Keyword(s):  
Process Parameters ◽  
Temperature Regime ◽  
System Analysis ◽  
West Siberia ◽  
Production Data ◽  
Gas Wells ◽  
Method Of Calculation ◽  
Technological Model

An algorithm has been developed, and a method of calculation of wellhead temperature in gas wells has been realized based on the geologo-technological model. The developed method enables to calculate the forecast process parameters taking into consideration the temperature regime of gas wells. The method was tested using the above mentioned model of the Cenomanian deposit of one of West Siberia fields. The results of these calculations have been later taken into account in designing the deposit development.

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