№ 134(10), December, 2017
Public date: 29.12.2017
Archive of journal: Articles count 112, 287 kb
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Description
To ensure the safety of food production of frozen dessert with the addition of sesame flour, the system of critical control points for risk analysis (HACCP) was applied to the manufacturing process. Biological, chemical and physical hazards that could exist at every stage of frozen dessert production have been identified. Critical control points have been identified that include pasteurization and milling. The introduction of the HACCP system in food production can effectively ensure the safety and quality of food products, expand the market and improve the level of management of producers
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LED LAMPS FOR IRRADIATION OF GLASSHOUSE PLANTS
DescriptionAt present, much attention is paid to the production of domestic vegetable products. One of the main reserves of increasing the yield of vegetables is the production of products in sheltered ground. The intensive construction of new glasshouses and greenhouses complexes has sharply increased the demand for engineering facilities, with the help of which an artificial microclimate is created in the structures of the protected soil. To create high irradiations, a very significant specific installed power of photosynthetic radiation sources is required. Currently, advanced greenhouse plants use LED irradiation. The experience of these farms showed that LED irradiators have a number of significant advantages over discharge lamps: a significantly lower specific power of the irradiator; the service life of LEDs is several times higher; they do not contain toxic substances (mercury); LEDs are powered from a low voltage network, which is significant from a safety standpoint. Isolation of greenhouse plants from the effects of natural factors of the environment leads to undesirable consequences. The deficit of the amount of natural energy of optical radiation penetrating the structures of protected ground in modern industrial greenhouses during off-season is eliminated by additional artificial radiation from greenhouse lamps. In this case, the emission spectrum of lamps differs significantly from the natural one. This is especially true for ultraviolet radiation. The issue of creating an LED lamp for its application in structures of protected ground is considered. The main requirements for the creation of a photosynthetic lamp on the spectral composition of radiation are given. The necessity of a long-wave ultraviolet component in the emission spectrum of a lamp is substantiated
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TO THE QUESTION OF HARROWING AND SIMULTANEOUS FEEDING
DescriptionThe technology of cultivation of most crops provides pre - and post-emergence weeding of crops, and their feeding with the availability of soil nutrients. According to the used underlying technology, these operations are performed separately. The harrowing of crops after germination is necessary for weed control, the destruction of the soil crust for access of air to the root system and partial thinning of dense crops. Further destruction of weeds on crops are herbicides, high-quality entry which provide sprays. The latter can provide small and ultra-low volume spraying in high performance and environmental requirements. However, separate execution of technological operations for fertilizing and harrowing reduces the quality of work, increases the cost of production. The proposed combination of technological operations on a harrowing of crops different crops simultaneously with feeding plants solid mineral fertilizers. The combination of technological operations for one pass of machine-tractor unit in the field provides a reduction of the fleet, its capital intensity, the energy, cash costs, and hence competitiveness of products. The studies proposed new technical support processes, technological scheme of the multifunctional unit to combine the operations of feeding and harrowing of crops
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DETERMINATION OF PARAMETERS FOR EFFICIENT COMBUSTION OF LOW-SULFUR FUEL OIL
DescriptionThe article presents the calculation of combustion of liquid fuel, which is determined by the air consumption for combustion of fuel, then the number and the composition of combustion products – flue gas resulting from burning fuel and the flue-gas temperature
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Description
In the dairy industry, the segment of yoghurts and yoghurt drinks is one of the most dynamically developing. Competition contributes to the production of high quality products. The transition to market relations encourages producers to use new prescription ingredients in the production of various yoghurts. In addition, it is essential to improve the existing ones and create qualitatively new technologies of products with a directed change in the chemical composition. Sour-milk drinks not only satisfy the physiological needs of the body, but also have a preventive and therapeutic purpose. Utilization of these products contributes to the prevention of numerous diseases, as well as life prolongation and increase of working capacity. The dietary properties of sour-milk drinks are determined by the presence of “live” beneficial microflora and persist for a long time, as long as this microflora remains viable and pure. The article contains data distinguishing the effects of the use of commercial fermentation starters EKOKOM Laktina, TM GoodFood, Kaprina on the qualitative characteristics of dairy clots. The article specifies the influence of fermentation starters and vegetable fillers on the organoleptic parameters of the final sour-milk product. The authors of the article further present data describing the organoleptic and physicochemical quality profile of yoghurt enriched with vegetable fillers, obtained by introducing commercial fermentation starters of various manufacturing companies
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FEATURES OF STRUCTURE INFLUENCE FOR WEAR RESISTANCE OF CARBIDE STEEL
DescriptionThe article describes the influence of initial porosity, grain boundaries and ways of getting carbide steel for wear resistance of carbide steel. The generalization of structure influence for wear resistance of carbide steel is presented
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INNOVATIVE FATTY PRODUCTION TECHNOLOGIES IN THE HUMAN HEALTH CARE
DescriptionEnsuring food safety for a long time has a global character. The results of world scientific studies confirm the negative effect of trans-isomers of unsaturated fatty acids on the human body, convincingly proving that their consumption increases the risk of various diseases, including cardiovascular diseases. Taking care of public health, many European countries at the legislative level strictly regulate the content of trans-isomers of unsaturated fatty acids, obliging manufacturers to also issue information on the quantitative content of TIUFA on packaging. Such measures can reduce morbidity and mortality, but require the introduction of progressive technological processes. The work analyzes numerous literature sources and generalizes the material on existing types of technological modifications of fats - transesterification and fractionation, which allow obtaining specialized fats without trans-isomers or with a low content of trans-isomers of fatty acids
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IMPROVEMENT OF A MULTILEVEL SYSTEM OF TRANSPORT LINKS OF FOREST ENTERPRISES AT THE REGIONAL LEVEL
DescriptionThis article considers the structure of the regional transport system of the forest complex, in which each mode of transport is characterized by a certain structure, technology of functioning and means. To describe the relationship between the parameters that determine the activity of a particular mode of transport, the production function method is used. Analytical dependence expressing the formal relationship between the parameters of various modes of transport is presented, the objective function of the organizational structure of the regional transport system management is presented, reflecting the efficiency of the entire transport system as a whole. The formulation of the problem is considered from the standpoint of game theory, in which there are four players with disparate interests: the organizational structure of the regional transport system and the three transport subsystems, each of the participants has its own control vector that belongs to the given set. We consider the case of full awareness, in which the hierarchical structure and all the objective functions of the system are known to the participants. The resulting statement of the problem is modeled by the game of four persons with conflicting interests. The game is viewed from the perspective of transport subsystems. To describe the relationship between the parameters that determine the activity of a particular mode of transport, the production function method is used. An algorithm for solving the problem is given
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Description
The article has examined the application and found the processes that need to be automated. The advantages of this method of automation of the technical support service are considered. Using the unified modeling language (UML), an information system model is constructed based on the information received. Using the developed model, the method of accounting for channel services and equipment will be automated, as well as the process of interaction with customers
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TEMPORAL HARMONIZATION IN PLANNING ACTIONS OF GROUPS OF OBJECTS IN REAL OPERATING TIME
DescriptionThe article considers problems of constructing a temporal processor in the planning and management of a multitude of objects using various temporal theories of representing temporal factors of perception of the external environment based on the phenomenon of human memory