Natural pearlite increases the porosity at 50-80 and volume at 10-20 times after crushing and thermal processing. It is applied in various industries and an agriculture. Swollen pearlite is a good stuff for powder and vacuum-powder of thermal insulation at blocks of air separation, capacities for liquid cryo-agents (methane, oxygen, nitrogen, argon and others). The technology of its manufacture at new factory in Stary Oskol (Russia) is described. Various technological, physical and chemical properties of pearlite sand are analyzed in comparison with other manufacturers. Its high quality and low value of heat conductivity proves to be true that allows to use the swollen pearlite as effective thermal insulation.Природный перлит после дроблени...
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The existing economic relations between Finland and Russia are due to geographical factors (first of...
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The article deals with the use of neural networks for cryptographic protection of information. Quest...
In 30-80 % of infertile men, pathospermia develops due to oxidative stress. Oxidative stress is an i...
The question to what extent and on what basis Latin American Spanish (in terms of its vocabulary uni...
In the article is known soviet power of podokhodno-property tax of citizens, his place in the system...
The analysis of material of treatment 80 patients with heavy open traumas bottom extremities with da...
The new researches in optimisation of nutrient medium for cultivation of yeasts Saccharomyces cerevi...
The Ustye Bronze Age settlement belongs to the Sintashta and Petrovka cultural-historical period,whe...
Quantum solitons are discovered with the help of generalized quantum hydrodynamics. The solitons hav...
Testicular germ-cell tumors (TGCTs) are the most frequent malignant tumors in men 20–40 years of age...
In Polish 2nd Corps participating in combat operations in the Italian campaign in the period of 1944...
The paper describes the rheological behavior of rocks of the earth’s crust in the process of restori...
According to the statistics of the recent 5 years, the share of rotavirus gastroenterites is 44-47% ...
The entire community needs knowledge of "Church sciences" as none other are adequate to philosophica...
The existing economic relations between Finland and Russia are due to geographical factors (first of...
At this stage in the development of immunology, it is still difficult to draw the line between the f...
The article deals with the use of neural networks for cryptographic protection of information. Quest...