Place of manufacture diversification in cyclical development of the enterprise

The relevance of the researched problem is caused by the fact that diversification is one of the best options for reforming enterprises. The aim of the research: to consider changes in production of outputs in development cycles of the enterprise. This will help to reveal the nature of manufacture diversification. The leading method to the research of this problem is the system approach, which allows to elicit factors promoting formation of business mechanism of manufacture diversification under the conditions of volatile economic environment. The results of the research are: it is offered to enhance the existing classification of enterprises by nomenclative and technological characteristic, taking into account the specific nature of processing capacity. The materials of the research can be useful for control bodies of enterprises when taking constructive steps in the sphere of manufacture diversification and strategy development. © 2016 Erofeev and Smolin

Peculiarities of educational environment at mining and metallurgical schools of the Urals

The relevancy of the issue under study stems from the contradiction between the need for a modern interpretation of the activities of mining and metallurgical schools, which had played a prominent role in the institutionalization of the vocational education environment as well as from moral “obsolescence” of research work results in this field. The goal of the article is the development of environmental indices of mining and metallurgical education of the Urals. The principal concept of research of this problem is the system approach, which allows considering the main peculiarities of the educational environment at mining and metallurgical schools of the Urals comprehensively. This article includes structurally significant characteristics of the educational environment at mining and metallurgical schools of the Urals. The contents of the article may be used for the purpose of modeling, designing and construction of an educational establishment (system) meeting the demands of the new communicational reality within the system of relations between education, industry, and social environment. © 2016 Chapaev, Erofeev and Dvořáková

Global gyrokinetic simulations of intrinsic rotation in ASDEX Upgrade Ohmic L-mode plasmas

Non-linear, radially global, turbulence simulations of ASDEX Upgrade (AUG) plasmas are performed and the nonlinear generated intrinsic flow shows agreement with the intrinsic flow gradients measured in the core of Ohmic L-mode plasmas at nominal parameters. Simulations utilising the kinetic electron model show hollow intrinsic flow profiles as seen in a predominant number of experiments performed at similar plasma parameters. In addition, significantly larger flow gradients are seen than in a previous flux-tube analysis (Hornsby et al {\it Nucl. Fusion} (2017)). Adiabatic electron model simulations can show a flow profile with opposing sign in the gradient with respect to a kinetic electron simulation, implying a reversal in the sign of the residual stress due to kinetic electrons. The shaping of the intrinsic flow is strongly determined by the density gradient profile. The sensitivity of the residual stress to variations in density profile curvature is calculated and seen to be significantly stronger than to neoclassical flows (Hornsby et al {\it Nucl. Fusion} (2017)). This variation is strong enough on its own to explain the large variations in the intrinsic flow gradients seen in some AUG experiments. Analysis of the symmetry breaking properties of the turbulence shows that profile shearing is the dominant mechanism in producing a finite parallel wave-number, with turbulence gradient effects contributing a smaller portion of the parallel wave-vector

ТЕХНОЛОГИЧЕСКАЯ ПОТРЕБНОСТЬ В КОРРЕКТИРОВКЕ ПЛАНА ФОРМИРОВАНИЯ ПОЕЗДОВ

The number of freight cars in Russia has considerably increased lately (more than 1 mln units in 2011), but the rate of satisfied demands of customers for freightage has on the contrary reduced. The time of delivery is increasing. As there is no shortage in cars the problem resides in non-efficient operation of private car rolling stock. The capacity of reduction of delivery time should be considered through reducing staying idle time and delays under technical and loading operations rather than by increasing technical speed. So the problem of enhancement of freightage should be seen and approached firstly as an economic and technological process.According to technology in force the car traffic is organized in conformity with the plan of train making-up. But the plan, which is adopted for a full year period, is optimum for a certain assessed volume of car traffic. As a rule, it’s the most probable value of traffic density. And there are considerable fluctuations from and towards the average value during the year.In order to put the plan of train making-up in conformity with real traffic density it is proposed to implement the technology of prompt updating of train making-up plan and of selection of car traffic operation. The updating supposes the choice of a variant that permits to deliver all goods in time, depending on their logistics characteristics, and with minimum possible costs. It should be taken into account that the updating of train making-up plan at one station has a direct, and sometimes, negative impact on the plans of other stations of a rail network. In order to avoid negative effects it is necessary to compute critical max and min values of car traffic that allow maintaining the actual plan.The proposed planning and scheduling are based on a simulation model, that, processing data on the approaching trains, number of the cars within the local network and their logistics characteristics, results in scheduling the trains traffic towards destination point.The patterns of integrated computation are shown for departing routing and for through trains planning.Анализ экономических и технологических решений по оперативной корректировке плана формирования поездов. Основные элементы схемы выбора рационального варианта организации вагонопотоков при перевозке приватным подвижным составом. Предложена методика комплексного расчета плана для сквозных поездов и отправительской маршрутизации. Дается схема оперативного планирования поездной работы, которая с позиций экономики позволяет учесть требования компаний-операторов.

Study on the influence of the magnetron power supply on the properties of the silicon nitride films

Silicon nitride (Si3N4) films were deposited by magnetron sputtering of silicon target in (Ar+N2) atmosphere with refractive index 1.95 - 2.05. The results of Fourier transform infrared (FTIR) spectrophotometry showed Si-N bonds in the thin films with concentration 2.41·1023 - 3.48·1023 cm-3. Dependences of deposition rate, optical characteristics and surface morphology on rate of N2 flow and properties of magnetron power supply

Morphofunctional reorganization of plantar aponeurosis in experimental modeling of fasciopathy by synthetic analogue of prostaglandin E1

Foundation. Chronic plantar fasciopathic pain syndrome is a pathology that significantly affects the quality of life of patients of all age categories. Insufficient knowledge of the etiological and pathogenetic factors in the development of fasciopathies explains the multiplicity, and sometimes inconsistency, of conservative and surgical treatment regimens. The choice of the optimal variant of therapeutic or surgical intervention may be associated with experimental modeling of fasciopathies and the study of the dynamics of the pathological process.The aim. To study the morphological changes in structures identical to the human plantar aponeurosis in experimental modeling of fasciopathy in animals.Research methods. The material for the study was fragments of the tendonaponeurotic complex of the foot of laboratory animals (control group: animals with the introduction of physiological sodium chloride solution (n = 12); main group: animals with the introduction of alprostadil (n = 12)). The methods of light microscopy (staining with alcian and toluidine blue, according to Van Gieson, Weigert – Van Gieson and Picro-Mallory) and morphometry were used.Results and discussion. As a result of the study, it was found that the four-fold administration of alprostadil had a significant effect on the structure of the dense fibrous connective tissue of the plantar foot of laboratory animals. The mechanisms of damage (edema, microhemorrhages, infiltration by lymphocytes, plasmocytes and leukocytes, dystrophy by the type of mucoid and fibrinoid swelling, delamination and rupture of collagen fibers), adaptation and regeneration (the appearance of a large number of activated fibrocytes, fibroblasts, microvessels, neoplasm of collagen fibers) were activated. All this together led to spatial focal histotopographic changes, consisting in an increase in the cellular composition of connective tissue structures against the background of a noticeable violation of their spatial orientation.Conclusion. Modeling of fasciopathy using alprostadil was accompanied by the appearance of mosaic reversible and irreversible heteromorphic and heterochronous changes in all connective tissue aponeurotic structures. Such histotopographic changes should be considered as one of the reasons for the clinical manifestations of plantar fasciopathies, causing functional insufficiency and explaining the clinical recurrent nature of the pathological process

MicroSoar: A New Instrument for Measuring Microscale Turbulence from Rapidly Moving Submerged Platforms

A new high-frequency turbulence measuring instrument, MicroSoar, has been developed, tested, and used to make scalar variance dissipation rate measurements. MicroSoar was mounted on the undercarriage of SeaSoar, a depth-programmable winged platform, and towed by a ship, at speeds up to 7 kt, in a depth range of the sea surface to 120 m. Sensors carried by MicroSoar were a fast thermistor, a pressure sensor, a microscale capillary conductivity sensor, and a three-axis accelerometer. With appropriate assumptions about the local T–S relation, measurements of microscale conductivity fluctuations can often be used to directly determine temperature variance dissipation rate (χ[subscript]T), the Cox number (C[subscript]x), and the scalar diathermal turbulent diffusivity (K[subscript]T). Compared to conventional quasi-free-fall tethered vertically profiling instruments, MicroSoar's major advantage lies in its ability to sample large fluid volumes and large geographic areas in a short time, and to provide, rapidly and simply, two-dimensional (horizontal–vertical) representations of the distribution of oceanic mixing rates