Siberian State Order of the Red Banner of Labor Research Institute of Metrology

The article presents the development of an intelligent control system for a pneumatic precision seed drill, based on a hybrid approach combining computational fluid dynamics (CFD) and machine learning methods. Numerical modeling of the air flow in the system was performed, operational parameters were optimized, and adaptive control algorithms were developed. The results show a 15–20% improvement in seeding accuracy, an 18–22% reduction in energy consumption, and enhanced system stability under varying operating conditions. The cost-benefit analysis confirms a payback period of 2–3 seasons. Future work focuses on integration with precision agriculture technologies and the development of cloud services for collaborative algorithm training.

Using optical methods: ellipsometry, IR spectroscopy and Raman spectroscopy, thin films obtained by centrifugation from blood sera of healthy people and patients with liver fibrosis of various stages (light and pronounced) were investigated. It is shown that the values of refractive index, shape of IR and Raman spectra of films of individuals of these groups are significantly different, which may be due to profound changes in the metabolism in the body with the development of pathology. This fact can significantly increase the sensitivity, specificity, accuracy index, as well as achieve real results in the diagnosis of not only pronounced stages of fibrosis, but also provides an opportunity to detect mild unexpressed fibrosis of a liver. This is promising in the screening minimally invasive determination of the stages of the disease in diffuse pathologies of the liver of various genesis.

Any parametres have a relevant uncertainty in a real industrial process. Quality of measurements and quality of production are connected. If the quality of measurements does not satisfy requirements of technological process quality of the production is low.

Development of industrial processes automation and demands for accurate managerial solutions require advanced systems of metrological procurement. Appropriate mathematical models are developed for the systems of metrological procurement and production control.

On the basis of the general additive model of measurement basic laws of measurement of productivity of the educational processes are received by being latent variables. Mathematical management methods are offered by level of readiness of students.

In 2007‐2008, we performed comparisons between the Russian Federation and the Czech Republic in the region of measurements on electrical capacity at high frequency. The purpose of the comparisons was to provide mutual relationship of results in the calibration of means of capacitance measurement in both countries by confirming the estimates of uncertainties arising in the comparisons. Comparison participants: Siberian State Research Institute of Metrology ( SNIIM) in Russia (pilot institute); and Czech Metrological Institute (CMI) in the Czech Republic. For the comparison, we used a set of transported standards developed in SNIIM of capacity 10, 100, and 1000 pF, working frequencies 1, 10, 20, and 30 MHz. In the region of measurement, the unit of electrical capacity in Russia was the special central standard GET 107-77 [1, 2] on the basis of the units of length and time. The transfer of the dimension of the unit by the secondary and the working standards was provided by the method of comparison and reglamentation of the intergovernal standard [3] and confirmed in the SNIIM by calibration methods. The standard measurement apparatus and the SNIIM standards, including the transported standards, had unified two-conduction connecting devices: unipolar coaxial-cylindrical joiners with the following characteristics: internal diameter of an outside electrode of coaxial 20 mm, an outside diameter of an internal electrode of 13.18 mm, and a wave resistor of a coaxial system of 25 Ω. The standard capacities of 10, 100, and 1000 pF of 16380A [4] in the Czech Republic were calibrated in the BIPM at a frequency of 1 kHz. At the working frequencies, the standards were calibrated from the frequency dependence of the capacitance (frequency course) at the INRIM Metrological Institute of Italy [5, 6]. The calibration in frequency course was performed at frequencies up to 15 MHz and used without loss of accuracy up to a frequency of 20 MHz (for a capacitance of 1000 pF) for 30 MHz (for capacitances of 10 and 100 pF). From the calibrated standards, the dimensions of unity were transmitted by means of standard measuring apparatus, in particular broad-band autobalance meters of impedance. The stan

A comprehensive study of the morphological and functional features of the placenta of a large fetus and the intensity of uteroplacental blood flow was carried out to determine the state of the blood supply to the fetus and its role in the genesis of macrosomia. It has been established that macrosomia occurs in women with intense uteroplacental blood flow.

206 patients with various forms of intestinal obstruction have been treated in our clinic during the last 5 years. In 78 (37,9%) patients intestinal obstruction causes were adhesions, in 46 (22,3%) - pinch hernia, in 40 (19,4%) - obturation, in 15 (7,3%) - volvulus, in 7 (3,4%) - spastic ileus, in 3 (1,5%) - paralytic ileus, in 3 (1,5%) - intussusception, in 14 (6,8%) - other causes. Out of 206 patients 39 died. Overall lethality in intestinal obstruction was 18.9%.

We (M.Z. Sigal, S.S. Ksembaev) proposed a method of estimation of blood pressure in vessels of maxillofacial area: arterial pressure - in facial, upper and lower lip arteries, venous - in upper and lower lip veins. The study was carried out with the help of M.Z. Sigal and A.I. Lisin's apparatus.