Born by the war

The article traces the history of Omsk State Technical University on the basis of archival documents. The ancestor of Omsk machine-building institute (further Omsk Polytechnical Institute, Omsk State Technical University) was Voroshilovgrad (Lugansk) evening machine-building institute, which was relocated from Ukraine to Omsk at the beginning of the Great Patriotic War. The article draws attention to the biographies of the first professors who became the backbone of the further teaching staff of Omsk State Machine-building Institute

Age Distribution of Cancer in Mice: The Incidence Turnover At Old Age

We have studied cancer incidence in mice as a function of age in those cohorts where the rodents are allowed to live very close to their full natural lifetime. We find that the incidence rises as a function of age, but then flattens and turns over at an age of about 800 days. This behavior is similar to that which we observed (Pompei and Wilson, 2001) in the SEER data where the age distribution of human cancer incidence turns over at about age 80. Although other fits are possible, the 3 parameter beta function model fits both the mouse data and the human data well. The beta model implies, and the data do not deny, the interpretation that cancer is not a certainty, and mice may also outlive their cancers, although high-dose cohort results suggest cancer might be certain if dose is sufficiently high. Limited data suggest that the cancer age distribution, including the turnover, may be time-shifted by dietary restriction

The choice of rational parameters of beet pulp drying process in a pulsed low-pressure vibro-boiling layer

Beet pulp is the main sugar industry by-product obtained with traditional production technology. It has high nutritional qualities, but in its raw form it turns sour quickly so it must be preserved. One of the most common methods is drying. Drying of the beet pulp with superheated vapor of reduced pressure in the pulsating vibro-boiling layer allows to improve the quality of the finished product by lowering of the drying agent temperature, thereby retaining a significant amount of nutrients in the initial product. To study the kinetic and hydrodynamic dependencies of the drying process, an experimental apparatus was developed that makes it possible to obtain the most accurate and reproducible results. In the course of the work, a lot of experiments were carried out. Drying curves, drying rate curves and heating curves were made based on these experiments results. According to the nature of the changes the corresponding conclusions were drawn. To study the interaction of various factors affecting the beet pulp drying process, the mathematical methods of experiment planning are applied. A mathematical description of this process can be obtained empirically. At the same time, its mathematical model has the form of a regression equation, determined by statistical methods on the basis of experiments. As a result of statistical processing of experimental data, regression equations were obtained that adequately describe the beet pulp drying process in a pulsed low-pressure vibro-boiling layer in the experimental apparatus. With reference to this drying apparatus, such technological modes of its operation were determined that ensure a minimum specific energy consumption of the drying process per kilogram of evaporated moisture and the maximum drying chamber moisture stress