05.00.00 Technical science
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RUSSIAN ELECTRICAL NETWORKS STATE INVENTORY SYSTEM
DescriptionThe article presents description of an advanced asset system for geographically distributed electrical network objects
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WAYS OF STABILIZATION THE ENERGY OF SMALL HYDROPOWER PLANTS
DescriptionThe article deals with the basic methods of stabilizing voltage generators for small hydroelectric power plants. It shows a block diagram of the implementation and analysis of the characteristics of the work; it reveals the advantages and disadvantages. The authors explain the features of the work of the functional circuits voltage regulators with discrete ballast, with phase control and management of the load current. It is shown, that to improve the performance of small hydroelectric power plants considerably we have to use contactless generators in their construction: asynchronous generators with capacitive excitation and synchronous generators with permanent magnets. The functional scheme of the voltage regulator, the construction of which has an additional field winding, simplifies the system voltage stabilization of the synchronous generator with permanent magnets, as well as a functional scheme of an asynchronous generator voltage regulator, made using step-up transformers, which significantly reduces the weight of the capacitors providing excitation of the generator and compensation of reactive power load. We have discussed the methods and devices for stabilization of voltage generators which will improve the effectiveness of pre-design work on the creation of new devices of stabilization of parameters of electric power generators for small hydroelectric power plants with improved operational and technical specifications
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PYROLYSIS OF FOREST RESIDUES IN THE CHARCOAL FURNACE
DescriptionThe article presents the modernization option of the forest residue furnace that allows speeding up the drying process by boosting it. The dependencies, reflecting the influence of the temperature of the drying process on the heat losses of the furnace and the effect of the load and the moisture content of the feedstock to the fuel consumption for the entire drying process, are presented in the article
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MANUFACTURE OF THE FERMENTED SAUSAGES WITH THE SMEARED CONSISTENCE
DescriptionIn foreign practice we have a great demand of using smoked sausage products with a smeared consistence. In the article the basic aspects of manufacturing smoked sausages with a smeared consistence are resulted: the choice of spices, starting cultures and the way of drawing up of forcemeat
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Description
The article describes the synthesis and verification of statistical and system-cognitive models of the influence of environmental factors on the quality of life of the population of the region. This stage of the ASC-analysis is performed in the system called "Eidos". As a result, we have created and validated (verification stage) all the specified systemic cognitive models. It is expected that reliability for the models of knowledge is sufficiently high for a given subject area, that is why we can state the discovery of a dependence of life expectancy and causes of death from environmental conditions. Typically, knowledge models are approximately 20% higher in accuracy than statistical models, which operate on the principle of positive pseudo-prediction. Making decisions based on the model of Abs (matrix of absolute frequencies) is not appropriate because of the different number of instances of classes (generalized categories) and dependence of the solutions of this amount. In the model called Prc2 (conditional and unconditional percentage distribution) the dependence of the model values of the number of examples in classes has been removed, but the accuracy of it is usually same low as in the Abs. In addition, for decision-making based on this model, one has to compare the values of conditional and unconditional probabilities manually, which is laborious and hardly possible for large dimensional models. The knowledge model called Inf3, based on a measure similar to the Chi-square, is the result of the automated comparison of values of conditional and unconditional probabilities presented in the model of Prc1, which is similar to Prc2, and usually has a fairly high accuracy, especially considering the high complexity of the subject area, which we simulated. Therefore, in accordance with the technology of the ASC-analysis data conversion into information, and afterwards - into knowledge, it is the model of Inf3 which is planned to be used for the solution of problems of identification, forecasting, decision-making and exploring the modeled subject area, through the study of its models
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INFLUENCE OF HILLY TERRAIN SLOPE ON THE VOLUME OF ROAD EARTHWORK
DescriptionThe analytic dependence for slope correction calculation is obtained. This correction is introduced in the formula for calculating the area of earth roadbed cross-section. It allows detailing the volume of road earthwork at the design stage. The correction size depends on the slope steepness as well as cross-sectional parameters of the earth roadbed. The calculations show that the correction size is essential if ratio of slope is 25 or less
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DIGITAL IMPLEMENTATION OF THE PROCESS CONTROL SYSTEM HEATING AIR FOR DRYING SEEDS
DescriptionThe article considers the issues of digital process of control of heating air in the dryer shaft
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Description
In the article we have studied the effect of vibration on the extraction process of inulin from Jerusalem artichoke tubers. The dependence of the output of inulin on the duration and frequency of exposure has been indicated. We have also identified the perspectives of using this technology for the extraction of inulin from plant material
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INFLUENCE OF ELECTRIC RESONANCE ON A GENERATOR OF OZONE
DescriptionIn the article the presented questions of theoretical research of processes of the electric resonance of the generator of ozone were discussed and their influence on productivity and electro-ozonizer efficiency was also defined
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Description
The article discusses the relevance of the development of the methodological apparatus of analysis and evaluation of the functioning of complex organizational and technical systems, as well as methods of forming a set of dynamic optimal control models