Portable installation for measuring speedometers and tachometers

1965 ◽  
Vol 8 (7) ◽  
pp. 680-680
Author(s):  
Ya. E. Pel'ts
Keyword(s):  
Portable Installation

Portable installation for testing speedometers, tachometers, and taxometers

1968 ◽  
Vol 11 (4) ◽  
pp. 513-513
Author(s):  
G. I. Leonov ◽  
N. V. Loshakov ◽  
B. S. Fel'dman
Keyword(s):  
Portable Installation

scholarly journals Baromembrane method for analysis of ultra-low concentrations of radionuclides in water samples

2020 ◽  
Vol 5 (3) ◽  
pp. 11-22
Author(s):  
M. E. Vasyanovich ◽  
A. A. Ekidin ◽  
A. V. Trapeznikov ◽  
A. P. Plataev
Keyword(s):  
Water Samples ◽  
Fuel Cycle ◽  
Sample Volume ◽  
Water Cooling ◽  
Monitoring Methods ◽  
Low Concentrations ◽  
Routine Monitoring ◽  
Portable Installation ◽  
Separate Source ◽  
Time And Energy

This paper demonstrates the use of the baromembrane method for measuring ultra-low concentrations of radionuclides in water of freshwater reservoirs. The relevance is due to the need to determine radionuclides introduction into water cooling ponds used by enterprises of nuclear fuel cycle. Radionuclides of natural and technogenic origin, not associated with enterprise discharge, are always present in water cooling ponds, forming a natural or technogenic altered background. Its presence often makes it difficult to identify contribution of enterprise’s discharge to water activity, since routine monitoring methods are characterized by a very high detection limit for radionuclides. Traditional methods for determining background radionuclides concentrations require sampling of at least 500 L of water, followed by their evaporation to get a dry residue. This procedure takes at least 5 days. It is possible to reduce time and energy spent on vaporizing hundreds of liters of water by pre-concentrating radionuclides in a smaller sample volume with the baromembrane method. To demonstrate this method, a portable installation with osmotic membranes was used being characterized with initial productivity of 6.0 L·min−1. The osmotic membranes separate source water sample into two components: demineralized permeate and concentrate, containing radioactive substances. This method allows preliminary concentration of water samples from 500 to 20 L in 10–15 hours with minimal losses of radionuclides (time period depends on water mineralization level). The method is universal; it can be used for concentration of dissolved salts of any heavy metals and other organic compounds. It allows preparation of water countable samples in much shorter time that traditional method (evaporation).

Automated Portable Installation to Determine the Thermo Physical Properties of the Object

2019 ◽  
Vol 16 (7) ◽  
pp. 3115-3120
Author(s):  
Kabanov Oleg Vladimirovich ◽  
Panfilov Stepan Aleksandrovich ◽  
Prokin Alexander Alexandrovich ◽  
Sergushina Elena Sergeevna
Keyword(s):  
Physical Properties ◽  
Portable Installation ◽  
Thermo Physical Properties
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