The quasi direct currents, which flows through the winding of power transformer, could cause the migration of working point from the knee of the magnetizing curve to the zone of saturation. In that way, the operational mode of power transformer changes. To account the effect of quasi direct current on the operational mode of power transformer was described the model of winding of power transformer with endless magnetic core and cylindrical magnetic cover. Compare the results of accounting model with the model of winding without effect of cylindrical magnetic cover the 20% difference in the characteristics of inductance from magnetizing current in the area of magnetizing currents under 100A was achieved.

Keywords: power transformer, saturation, modeling, the power transformer winding, electric power supply system, quasi direct current, power line, geomagnetic storm, space weather

Summarizes the main approaches to the definition of scientific material resources on the basis of which summarized their formulation. Supplemented by material-types on the project evaluation and measurement database. Extended classification of material resources on the basis of the target, Level substitution degree of novelty, functional characteristics, the value of reuse, Level of consumption, the place of education, the dynamics of demand, the importance in the production. A group of factors contributing to the formation of the economic benefits of efficient use of material resources.

Keywords: material resources, classification, component, economic benefit, saving factor

This article presents an example of two-dimensional implementation of the optimization calculations for the air leak in the top dead point of the engine and the oil pressure in the oil line. Calculation optimization of complex repair works in the form of an algorithm of the iterative optimization process. Defined optimization criteria for this batch of units of the car. The calculations are performed for all the investigated party repair Fund of the engines. By optimizing the number of process routes decreased by one set of repairs.

Keywords: repairs on an actual technical condition, repair works, pre-diagnosis, optimization, multidimensional taxonomy, the Manhattan metric

This article described in detail a methods to optimize the cost of system maintenance and repair of vehicles. An algorithm for the use of a process approach to the task, as well as the fundamentals of the original functionality of the developed software, enables you to perform the necessary calculations in an automated way on the basis of defined boundaries of a standardized rating scale Harrington. An example of using this technique for the company performing the maintenance and repair of trucks.

Keywords: Maintenance, repair, quality management system, process approach, the vehicle, function of Harrington, optimization methods, software, rectangular matrix, quality

The purpose and objectives of this work is to develop methods of planning the path of the mobile autonomous robots operating in environments with unknown location of obstacles. The result of the article is vague planner travel path of autonomous mobile robots for three-dimensional space (3D environments). The results differ from known analogues structure proposed planner, consisting of two interconnected parts, designed for use in horizontal and vertical planes, context-sensitive coordination method "simple" behavior of the mobile robot, a set of rules governing the method of prevention "jam" in the obstacles.

Keywords: Quad copter, management, uncertainty, decision making, fuzzy logic

Hemodialysis is a complex process requiring the increased control of some parameters, such as dialysis dose, blood perfusion rate, ultrafiltration, blood volume, its composition and etc. To solve the problem of control the blood during dialysis was designed the monitoring system of air inclusions - air bubbles. A very important part of this system is the ultrasonic air detector. It is set to venous blood highway - at the exit of blood from the dialyzer, and determines the presence in the cleaned blood any air inclusions by measuring the velocity of ultrasound in the analyzed multiphase medium - the blood, thus informing the doctor about the quality and security of hemodialysis procedure.

Keywords: Air embolism, bubble trap, air detector, speed of ultrasonic vibrations, the pulse-frequency method of measurement the ultrasonic speed.

the paper studies the age peculiarities of mental disorders in children and adolescents of the Volgograd region. The research identified several peaks artifacts for each Department. Presents an attempt linear explanation of the "road map"

Keywords: mental disorder, the peak age, linear regression

Method of assessing human psychophysical state based on the information wave resonance mental Installation operator with information markers offered. Functional diagram of the experimental complex information-wave test is given. Difference method of resonance test vegetatively and proposed an information-wave test are shown. The results of studies on patient group with the use of information-wave markers generated by a special digital pattern generator. Experimentally found a link blocks in the human energy centers with relevant mental disorders and functional abnormalities in human organs using the proposed information-wave test. The ability to use information-wave generator as control human psychophysical state proved.

Keywords: infowave test, psychophysical assessment and correction

The article presents the investigation of ultrasonic treatment influence on the size of the stearylamine floccules in the aminobutyric emulsion and on the stability of received emulsions. It was found that the amine floccules in the original aminobutyric emulsion have a bimodal size distribution with small particles predominantly 900 nm and large particles with size of 5500 nm or more. It was identified that ultrasonic treatment leads to decrease the stearylamine floccules size in 13-25 times, dimensions of obtained floccules are between 35 and 220 nm. The dynamics of size changes of stearylamine floccules was studied. The stearylamine floccules were obtained in aminobutyric emulsions after the ultrasonic treatment with an intensity of 15-30 W/cm2. It was found that after ultrasonic dispersion the process of amine floccules agglomeration takes place, the duration of this effect depends on the intensity of treatment.

Keywords: ultrasonic treatment, aminobutyric emulsion, stearylamine floccules, floccules dimensions, emulsion stability

In developing training tools thermal units, assemblies and systems of machines operating at low temperatures below zero, should pay more attention to the monitoring of their thermal state. At this point, there are many ways to measure the temperature. All of them are divided according to the principle of action. There are a large number of sensors for measuring temperature, based on these principles. However, when building automation means of thermal preparation machines play a special role performance sensors of different design when used in automation nodes to determine the temperature units, assemblies and systems of machines. At this point in the design automation received widespread microcontrollers, comparators, and which comprise analog-digital converters in a single chip, and also capable of converting analog electric quantities into digital form. This ensures high accuracy.

Keywords: thermal state thermal training machine, temperature measurement, a semiconductor sensor, a thermistor, a thermocouple, a microcontroller, an analog-to-digital converter

This paper describes the method of calculating the optimum amount of a dispatcher for ambulance stations . As a criterion of optimality selected the lack of a queue on the telephone line when referring to the dispatcher. Original data in the calculation are the average daily flow of orders and average time of ordering dispatcher. The authors developed by the computer program, which allows to calculate the optimal amount of air traffic controllers on the ambulance station . The works are executed in the order - to creative collaboration with Shakhtinskaya hospital emergency medical care of the VI Lenin.

Keywords: ambulance station , to the optimal amount of air traffic controllers , calculation methods

This article presents a summary of the system of car repairs on the technical condition. The urgency of the task. The technique of optimization of complex repair works in the form of an algorithm of iterative optimization process. Defined optimization criteria for this batch of units of the car. Indicate the main directions of further research on the improvement of technological processes of repair on an actual technical condition

Keywords: repairs on an actual technical condition, complex repairs, pre-diagnosis, optimization, taxonomy field, Tucson, cluster

Results of researches of electrochemical machining of Alnico and Х25К15 magnetic alloys are presented. Problems of conventional machining processes (cutting, milling, drilling and grinding) use a sharp cutting tool are noted. The expediency of use NaNO3 of electrolytes at high-speed anodic dissolution of magnetic work piece surfaces has been demonstrated. Agency of chemical and phase composition of magnetic alloys on a landform of a surface after the ECM in нитратных water electrolytes is installed. The gained results of experimental researches allow to control parameters of a technological process with given accuracy and speed of electrochemical machining of parts.

Keywords: high-speed anodic dissolution, magnets cast constants, alnico, electrochemical machining (ECM), surface roughness, current efficiency, electrochemical marking

Abstract: Operation of motor transport and special equipment is carried out in difficult conditions, the impact of environmental conditions (temperature, humidity, dust, wind, solar radiation) and changes in modes of operation of the machine. This affects the performance of equipment, the number and complexity of repairs. Away from fixed bases (in the field), the problem is particularly acute repairs. One of the most energy-intensive and expensive works are welding (welding parts with a break, welding cracks, fusing metal layer on the worn surface, metal cutting). In this work the welding equipment affect the voltage drops in the supply mains, therefore, produces a large number of failures such equipment. After the equipment is accompanied by an increased amount of electric power consumption, this results in material costs. Previously proposed equipment has improved mass, which reduces the efficiency of the welding. Based on this study was proposed innovative design welding inverter using the resonance effect, with enhanced reliability, low-cost design version (in terms of mass production). In order to improve the reliability and reduce the cost of the proposed design of inverter proposed a number of new approaches. Full-bridge inverter is studied welding power source with the implementation of the resonance effect with a stable and smooth operation, high reliability, because the circuit of the inverter is not sensitive to changes in the supply voltage.

Keywords: construction machinery, parts, low temperatures, thermal state, measurement, monitoring, control, sensor, hardware-measuring system

based on an analysis of the methods and schemes snow removal from roads and sidewalks it revealed that there is a snow plow, which would be cleaned in a single pass only the side of the road in the middle of the road cleared. At the same time to solve this problem are also two cars. In accordance with this work set a goal: increasing productivity snowplows. To explore this issue were based on the analysis of working bodies of snow plows developed and investigated a new type of dump actuator for snow removal from roads. It was determined that there is an additional resource to increase machine productivity. This is achieved by improving the design of the working body. This will not increase the resistance of the machine, because proposed symmetrical design with rotating blade and sliding half, which will reduce the resistance and to ensure stability.

Keywords: snow machine, snow removal from roads, snow removal scheme with roads, blade, working body