DETERMINATION OF THE SAFETY OF IRRADIATED PRODUCTS BY THE CONTENT OF QUINONES

The result of research, conducted using our immuno-chemical testing system (Reaction of Indirect Hemaglutination) shows that application of radiation exposure to farming and agro products in dosages needed for prolongation of their storage lifetime, for prevention of rotting and germination or for decontamination of feed-stuff from natural microflora and insects; leads to increase in radiotoxins contents thereof with maximums reached on 7-15 days. Besides, traces of radiotoxins in reaction of indirect hemaglutination depend on type of product, radiation dosage and time of product storage after radiation treatment.

Devising a method to improve the accuracy of maintaining the pre-set temperature and humidity conditions at a vegetable storage facility under a food storing mode

A vegetable storage facility is an energy-consuming object with distributed parameters. The quality of product storage depends on the microclimate in the vegetable storage facility: current temperature, humidity, and carbon dioxide level. Existing temperature controllers in a vegetable storage facility use a two-position law of control, which leads to the consumption of excess energy and product spoilage. The purpose of the study is to improve the work of the controller in the process of product storage at the storage phase due to closing the two-position controller through feedback in the form of a first-order aperiodic link. To achieve the goal, the procedure for calculating the transfer function of a control object through the equation of thermal balance was used. This procedure made it possible to take into consideration the parameters of a vegetable storage facility: the area and the type of thermal insulation material of floorings, the weight, and the type of a stored product, as well as thermal energy supplied to the vegetable storage facility. Based on the heat balance equation, the nature of the operation of controlling elements, transfer functions of a vegetable storage facility without a product, and the vegetable storage facility filled with a product, were calculated. The heat model of a vegetable storage facility was constructed in the MATLAB Simulink environment (USA) to check the algorithms of the temperature field control. The product storage for 180 days with changes in the daily temperature of outdoor air from minus 8 °C to plus 2 °C and changes in humidity from 50 % to 100 % was modeled. According to the results of modeling, it is possible to conclude that the addition of an aperiodic link to the feedback of the two-position controller will enable taking into consideration the inertia of a control object. This allows decreasing the maximum error in control of self-oscillations to 0.15 °C and decreasing the total operation time of controlling elements by 13 %

SELECTION NOVELTIES OF VEGETABLE PEPPER AND BASICS OF PRODUCT STORAGE

The purpose of the study is to study varieties of vegetable pepper of domestic selection: Big change (standard), Orange bull, Snow leopard, yellow Cockatoo and sweet Tooth for a number of economically valuable characteristics. Varietal differences in the biochemical composition of fruits, the timing of crop formation, and productivity were established. Fruits with red and yellow color are in high demand among the population, which is consistent with their richer biochemical composition. The yield of pepper in the conditions of film greenhouses showed a variation in varieties and hybrids in the range of 5.8-7.0 kg / m2 with an average fruit weight of 140-250 g. The varieties belonged to the group of early and medium - ripened varieties, which determines their feasibility for growing both in the open ground and in film greenhouses. The construction of storage facilities with CSG will facilitate import substitution of vegetable products and provide the population with fortified products throughout the year.

The Process of Storing Aviation Parts in the Context of Flight Safety

The article describes the general principles of storing aviation products as well as a classification of individual groups of stock range. Moreover, the general chara-cteristics of storage processes are covered. The main factors that have an influence on the quality of stored products are discussed. The option to use an IT system for warehouse management is also mentioned. The main part of this manuscript analyzes the risk of storage processes. Based on this analysis, the cause-and-result relationships between product storage errors and authorization of a faulty product to use. Hence, the most probable storage errors and their sources are indicated. This enabled to determine the methods to improve flight safety due to reduction of errors in storage management.