05.00.00 Technical science
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CHOICE AND JUSTIFICATION OF SPRAYS FOR PROCESSING CANES OF RICE CHECKS
DescriptionThe article presents the results of the researches of the work of sprays of the offered sprayer at the laboratory Agrotop stand. On the basis of the conducted researches, for processing of a cane of rice checks using slothole sprays providing uniform distribution of toxic chemical on capture width is recommended
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RESEARCH OF WORK OF THE DESIGN ELEMENTS OF A HYDROSEEDER FOR CROPS OF VEGETABLE CULTURES
DescriptionThe analysis, choice and justification of the device intended for management of a stream of working liquid at hydroseeding, and also the results of the laboratory researches of its uniform expiration are presented in this article
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ANALYSIS OF METHODS AND MEANS OF DIAGNOSTICS OF BRAKE SYSTEMS OF VEHICLES
DescriptionThe article presents native and foreign bench-top and board methods to test the automobile break systems. One can find information about some native trailer-break stands. We have analyzed their advantages and drawbacks such as low information capacity, high diagnostics processing time, low quality of regulation and maintenance operations due to big influence of the operator’s experience, his knowledge and individual characteristics, and great instability of manual test modes on the results of the investigations. To remove these shortcomings they have had some experiments at MADI in order to develop the module to the brake qualities stand. When using it one can have automatic diagnoses and flow chart is presented in the article. Due to the existing vehicles’ state inspection mode and diagnostic means in our country there appeared new stands for brakes control. One can attribute to these devices a range of brake qualities stands developed and produced at Novgorod plant GARO. These are STS-3, STS-10 and STO series stands for cars, trucks, buses and micro-buses. The article also presents some foreign stands used in Russia such as universal brake stands STM by META firm, the break stand IW7 Eurosystem by MAHARUSSIA firm. We have presented in the article the results of the analysis of simple and complicated board means of diagnosis as “Eftor-2”, “Effect”
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Description
The article discusses the application of automated system-cognitive analysis (ASC-analysis), its mathematical model is a system of information theory and implements, its software tools – intellectual system called "Eidos" for solving one of the important tasks of ampelography: to quantify the similarities and differences of different clones of grapes using contours of the leaves. To solve this task we perform the following steps: 1) digitization of scanned images of the leaves and creation their mathematical models; 2) formation mathematical models of specific leaves with the application of information theory; 3) modeling the generalized images of leaves of different clones on the basis of specific leaves (multiparameter typing); 4) verification of the model by identifying specific leaf images with generic clones, i.e., classes (system identification); 5) quantification of the similarities and differences of the clones, i.e. cluster-constructive analysis of generalized images of leaves of various clones. The specific shape of the contour of the leaf is regarded as noise information on the clone to which it relates, including information about the true shape of a leaf of this clone (clean signal) and noise, which distort the real shape, due to the random influence of the environment. Software tools of ASA-analysis which is intellectual "Eidos" system provides the noise suppression and the detection of a signal about the true shape of a leaf of each clone on the basis of a number of noisy concrete examples of the leaves of this clone. This creates a single image of the shape of the leaf of each clone, independent of their specific implementations, i.e. "Eidos" of these images (in the sense of Plato) - the prototype or archetype (in the Jungian sense) of the images
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PRINCIPLES OF ASSESSMENT AND RANKING OF UNIVERSITY’S STRUCTURAL DEPARTMENTS
DescriptionMain principles of ranking of objects, which are evaluated by numeric parameters, are considered in the article. Undoubtedly, the technique for internal assessment of University’s department should be harmonized with techniques of external assessments. It means that during setting of internal indicators, key indicators of external ratings must be taken into account. However, the system of rating’s composition by force of indexes’ aggregation, setting of weighting coefficients, using of various mathematic methods for reduction of an estimate to integral value, could differ from systems currently in use. The choice of methods is validated, which are appropriate for the procedure of ranking of University’s structural departments. For selection of alternatives based on specified criteria, Analytic hierarchy process by Saaty and Cogger and Yu method are proposed. The technique for internal rating of structural departments have been developed, which allows to estimate evolution of positions of faculties and departments in rating, as well as to recommend possible improvements. Recommendations for carrying out of University departments’ effectiveness monitoring are formulated. Techniques under development are being led to practical implementation, and could be introduced into self-assessment processes of Higher educational institutions. Complex technique combines all proposed techniques, and is a tool for carrying out of internal assessment of effectiveness of Higher educational institutions’ activities on base of uniform computation procedure with using of the set of approved indicators. The advantage of proposed technique is its flexibility, which consists in the possibility to adopt the calculation of indicators of activities’ effectiveness in accord with changes in the register and contents of primary data. Results of internal assessments of the University and its’ structural departments should favor the improvement of management system as well as creating of terms for dynamic development of the University, grounded on maximum effective using of available resources and potential of University’s research personnel
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IT SABOTAGE IN THE CORPORATE SPHERE
DescriptionNine out of ten acts of sabotage are committed by people one way or another associated with information technologies. According to experts at InfoWatch, developer of systems to protect confidential information from insiders, the reason for this profession lies in the psychological characteristics of these employees. Reading more will allow understanding the problem with a couple of examples from the life that most powerfully illustrate typical traits of professionals in the information environment. And, although the first teller did not hide his name, the second one decided to remain anonymous. Deep psychological background of the act of sabotage often leads to the fact that a disgruntled employee threatens boss or colleagues, for example, by e-mail. Sometimes he even shares his thoughts with someone from colleagues. In other words, not only the attacker knows the information about the upcoming sabotage. Analysts estimate that other people know 31% of information about the plans of a saboteur. Of these, 64% are colleagues, 21% with friends 14% — family members and another 14% were accomplices. It was also determined that 62% of corporate saboteurs think through their actions beforehand. In 47% of cases, they commit preparatory acts (e.g., theft of confidential data backups). 27% — design and test of the future mechanism of the attack (preparing a logic bomb on the corporate network, additional hidden system entries, etc). In 37% of cases the activity of employees can be noted: of this amount, 67% of preparatory actions visible online 11% offline and 22% both
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THE ASYMPTOTIC INFORMATION CRITERION OF NOISE QUALITY
DescriptionIntuitively everyone understands that noise is a signal in which there no information is, or which in practice fails to reveal the information. More precisely, it is clear that a certain sequence of elements (the number) the more is the noise, the less information is contained in the values of some elements on the values of others. It is even stranger, that noone has suggested the way, but even the idea of measuring the amount of information in some fragments of signal of other fragments and its use as a criterion for assessing the degree of closeness of the signal to the noise. The authors propose the asymptotic information criterion of the quality of noise, and the method, technology and methodology of its application in practice. As a method of application of the asymptotic information criterion of noise quality, we offer, in practice, the automated systemcognitive analysis (ASC-analysis), and as a technology and software tools of ASC-analysis we offer the universal cognitive analytical system called "Eidos". As a method, we propose a technique of creating applications in the system, as well as their use for solving problems of identification, prediction, decision making and research the subject area by examining its model. We present an illustrative numerical example showing the ideas presented and demonstrating the efficiency of the proposed asymptotic information criterion of the quality of the noise, and the method, technology and methodology of its application in practice
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TO THE RESEARCHES OF A MACHINE FOR EARTHING UP RATOON SHOOTS OF VEGETATIVE PROPAGATED APPLE STOCKS
DescriptionStable obtaining in high quality fruits in the required volumes for Russia is possible in the transfer of industrial gardening to intensive cultivation system. Planting of this type provide a high early appearance and productivity, high quality fruits and quick payback on investment in their creation means. All of this is formed in the nursery garden. Under these conditions, the development and introduction of innovative machine technologies for industrial production of sticks is an urgent task. The problem of mechanization of the technological operation for earthing up ratoon shoots of vegetative propagated stocks has been considered in this work. A perspective scheme of machine comprising two milling rotors which have a flanked line with axis of rotation parallel line plants proposed consequently analytic research constructions of technical means for earthing up ratoon shoots. The program of the research for parametrics milling barrel for earthing up ratoon of vegetative propagated apple stocks include defining the dependence impact of the kinematics indicators (forward and circumferential speed of labor body) and the constructive indicators (quantity of blade and angle of their setting) to qualitative criterion: structure of soil provide optimal establishment stocks, and form of swath. Attainment of agrotechnical demands for earthing up ratoon shoots of vegetative propagated stocks is provided by the given aggregate under circumferential speed of labor body υ=3,9 m/c, quantity of blades – 4 pieces and angle of setting blades on rotor γ = 10° …20° . The use of a universal complex for the work in queen cell with technological module for earthing up ratoon shoots will allow not only labor-saving, but also mark up leaving of qualitative ratoon
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Description
The article proposes to use the automated systemcognitive analysis (ASC-analysis) and its software tool which is "Eidos" system to solving multiparameter typing, system identification and cartographic visualization of spatially-distributed natural, environmental and socio-economic systems. Imagine, that we have an original point cloud with coordinates (X,Y,Z), each with known values of gradation descriptive scales of nominal, ordinal, or numeric type S(s1,s2,...,sn). Then the "Eidos" system provides: 1) building a model that contains generalized knowledge about the strength and the direction of the influence of descriptive gradations of scales at Z=M(S); 2) estimation of the values of Z for points (X,Y) described in the same descriptive scales S(s1,s2,...,sn), but not a part of the original point cloud; 3) a cartographic visualization of the spatial distribution of values of the function Z=M(S) for points outside the initial cloud, using Delaunay triangulation. Basically, this means that the "Eidos" system ensures recovery of the unknown function values on the grounds of the argument and implements it in a generic setting, independent of subject area. We propose a new scientific concept called "Geo-cognition system", which is defined as a software system that provides conversion of source data into information, and knowledge in visualization and mapping of this knowledge, resulting in the cognitive map becomes graphics. This feature can be used to quantify the degree of suitability of the watersheds for cultivation of certain crops, the evaluation of the ecological situation on particular territories on the structure and intensity of anthropogenic load, visualization of results of forecasting of earthquakes and other unwanted risks or emergencies, as well as for solving many other similar mathematical essence of tasks in a variety of subject areas. We have also shown a simple numerical example
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THE METHODS AND THE RESULTS OF THE TESTING OF AN ASYNCHRONOUS GENERATOR WITH SIX PHASE ZONES
DescriptionThe article contain the peculiarities of testing asynchronous generator with sixzone winding on the basis of the asynchronous motor series 4A100S4 and analysis of obtained characteristics. Circuit parameters of the stator winding can significantly affect the characteristics of the asynchronous generator. Asynchronous generator was tested with a stator winding connected star, autotransformer and sectional winding. Use chastising windings opens the possibility of applying various circuits of capacitors and the load to asynchronous generators, which in turn affect the efficiency and stabilizing properties of the electric machine. Asynchronous generators to test with sectional winding by confirmation of theoretical calculations for determine the most optimal scheme under connect capacitors and load, testing the stator winding. The volume of testing for asynchronous generators standard is not defined, so we proposed testing method, taking into account the design features of the stator winding. Asynchronous generators were tested with the help of special equipment with the use of analyzer of energy power quality. Article contains characteristics of idling, short circuit and others, considered the heat mode. On the basis of the results we have determined the parameters of the circuit, the efficiency and power factor of induction generator