Showing papers by "Russian Ministry of the Emergency Situations published in 2007"
TL;DR: In this paper, a theoretical description of the absorption of gaseous ammonia by water drops has been suggested and a mathematical model takes into account the evaporative cooling of drops, Henry's law, and experimental data on the value of Henry's constant.
Abstract: Laboratory experiments were carried out and a theoretical description of the absorption of gaseous ammonia by water drops has been suggested. A mathematical model takes into account the evaporative cooling of drops, Henry’s law, and experimental data on the value of Henry’s constant. A comparison between experimental and predicted results has been made. At a fixed flow rate of water it is shown that absorption increases with decrease in the radius of drops and their velocity.
6 citations
TL;DR: The role of rearrangements of chromosomes 7 and 19 in the immortalization and malignant transformation of embryo fibroblasts is discussed, as well as the roles of other chromosomes during acquisition of the specific signs of the transformed phenotype by the Lrec-1 and LRec-1sf cells.
Abstract: Peculiarities of chromosomal rearrangements were studied in cells of the spontaneously immortalized LRec-1 and LRec-3 lines derived from rat embryo fibroblasts, as well as in LRec-1k clone cells and LRec-1sf line cells with autocrine regulation of proliferation at various cell transformation stages. The lines were obtained from rat embryo fibroblasts by cloning during rapid aging of the cultures. Using the G-banding of chromosomes, it was shown that in the process of transformation, cells of the LRec-1 and LRec-3 lines as well as of LRec-1sf maintained diploidy and specific clonal rearrangements of chromosomes 7 and 19, which were revealed earlier at the immortalization stage. In the LRec-1 cells, new clonal rearrangements of chromosomes 10 and 20 were observed, while rearrangements of chromosomes 1, 2, 11, 15, 18, and 19 were observed in the LRec-1sf cells. In the LRec-3 cells, as well as in cells of the LRec-1k clone, new chromosome rearrangements were absent. Loci involved in chromosomal rearrangements were compared with the genes located in them according to RATMAP data. The role of rearrangements of chromosomes 7 and 19 in the immortalization and malignant transformation of embryo fibroblasts is discussed, as well as the roles of other chromosomes during acquisition of the specific signs of the transformed phenotype by the LRec-1 and LRec-1sf cells.
2 citations
TL;DR: In this paper, the probability of majority connectedness of a two-pole network of a random graph is computed when the union of circuits is used as a connectedness carrier of node-poles.
Abstract: A computational method for probability of majority connectedness of the two-pole network of a random graph is stated when the union of circuits is used as a connectedness carrier of node-poles. Formal rules for calculations of this type illustrated by the corresponding examples are given.
TL;DR: In this paper, a mathematical model for calculating heat transfer is proposed to determine the required thicknesses of the thermal insulation for the covered heater and the shapes for which the heat losses into the surrounding atmosphere during continual operation of the heater are reduced to a minimum.
Abstract: A technology and a facility for cost-effective fabrication of glass-kremnezit based on modular production methods have been developed. A mathematical model is proposed for calculating heat transfer. This model makes it possible to determine the required thicknesses of the thermal insulation for the covered heater and the shapes for which the heat losses into the surrounding atmosphere during continual operation of the heater are reduced to a minimum.