Home – Home – Jornals – Journal of Mining Sciences 2014 number 2

This article reviews investment variants of household economies and related risks. The author offers to consider investment risks together with behavioral risks when a decision of investment is made by a household economy. The author demonstrates the significant influence of behavioral factors by reviewing some examples of "irrational" behavior of household economies.

Scenario method of risk analysis significantly increases efficiency of estimation of possible project losses in uncertain environment, with multidirectional trends on real estate market and relatively long time horizon. Subsequently it can be of defining value both for taking effective managerial decisions in the course of project realization, and for its total estimation. The article reveals essential characteristics of the scenario method: analysis and generalization of approaches to the definition of the «scenario» notion as well as their classification are made, methods of scenarios elaboration as the most difficult step in risk valuation process are considered. Scenario algorithm of risk analysis for residential property project is developed.

The issues of balance of economic categories «insolvency and bankruptcy». Weaknesses of the current system data ratio concepts, which in turn lead to the kotlovomu method of accounting operations in a bankruptcy. The proposed concept of accounting-analysis system of insolvency and bankruptcy procedures to distinguish between questions of solvency and viability of the Organization, to determine the continuation of the economic entity.

This article presents the results of a research which shows the effects of the terms of contracts on balance sheet items of the accounting reporting of trade organizations. The author allocated the essence of contracts which traditionally are used in trade activity and also identified particular contractual relationships between entities formed by groups of organizations. As the result of the comparing of the accounting data whose composition is determined by essence of contracts the author disclosed the mechanism of the influence of the conditions of the ownership transition on the formation of information about receivables in the individual financial statements, summary reporting and consolidated financial statements in the interconnected trade organizations.

Currently regional minimum salary is the only way of labour market regulation on regional level in Russia. However, procedure and effects of regional minimum salary determination are not examined enough. We prepared a data base for all regional minimums, effective in Russia in 2007-2012. On the basis of econometric analysis we revealed main factors defining minimum wage rate in the region. Gross regional product per capita, profit of organizations, price differences, demographic, climatic and political factors should be noted as the most significant factors.

In the article theoretical provisions of need of application of methodical approaches to carrying out the joint statistical analysis and influence estimation, on the one hand, a scientific and innovative field of activity on process of economic development, and with another - influence of level of economic development, qualitative characteristics of the human and labor capital on a condition of the scientific and innovative sphere of economic activity are developed and proved. For deeper statistical studying of tendencies of development of the scientific and innovative sphere it is offered to expand the list of structural components of social and economic potential of society, and, therefore, and the considered sphere, due to inclusion in it, besides the known: legal, ecological, information, financial, infrastructure and organizational components.

The article considers issues of regression models building at forecasting of stock market state; estimate of modern state of information base of the study is given; dynamic model is built; assessment of its statistical reliability is conducted; limitations are set and forecast calculations under these limitations are made; conclusions and suggestions are made.

The article provides a concept of gross municipal product. A proposed grouping on the basis of gross municipal product per capita. Presents distribution of municipal units in 2008-2012 on groups.

The article considers the issue of interaction of moralist with society in V.M. Khvostov’s sociology via analysis of the following aspects: the essence of moralist; the essence of society; interaction of personality with society; role of tradition in development of personality and society; ethical approach to personality analysis. Personality is a sociocultural formation where influence of society and culture is shown through spiritual development and communication. Society and personality taken in life unity are like special reality and spirituality plays decisive role here.

In the article based on analysis of the state of the housing market of Novosibirsk region the main problems of the industry are identified, their grouping on the institutional, technological and economic is made. Particular attention to transaction costs of construction companies is paid. Conclusions about the possibility of using the results of analysis for the economic and mathematical modeling of the supply of housing in the region are formulated.

The features of staging information analysis and infrastructure problems in the system of spatial planning of tourism as the most important stage, which allows to model a complex system of decision-making and selection of appropriate levels of interaction.

Creation and development of innovation sectors of national innovation system is the foundation for sustainable development of the state, improving the quality of life of the population, growth of investment attractiveness, that ultimately determines the position of the state on the world stage. Today, Russia keeps one of the last places by complex indicators of innovation development both in the group of G8, and in the BRICS group. The article describes the experience of forming a national innovation system BRICS country, identified key features and development opportunities, as well as given recommendations for the formation of a national innovation policy in Russia.

Necessity of forming the foundations of system approach to the knowledge work management is obvious. This is dictated by the query of difficult socio-economic, organizational and economic systems to obtain predictable and reliable reproducible result of knowledge workers’ activity. Without denying the creative component of knowledge work, but focusing on its information nature, author insists on the need to ensure the controllability of the results of knowledge work, especially in corporations.

The results of market analysis of raw material used for production of wood pallets are presented. Segmentation of market is done, structure of raw wood manufacturers is defined, main competitors in its consumption are revealed. Approaches to obtaining raw wood for production of pellets that comply with European quality standards are suggested.

This paper aims to trace the evolution of integrated communication over a period of time, propose and explain relevant stages, identify relationship between integrated communications and integrated marketing communication. The article explores the development of integrated communications based on books and academic articles in peer-reviewed academic journals published in English language between 1992 and 2013. The paper represents the model of evolution of integrated communications, consisting of three stages: proto-integration in communications, integrated marketing communication, integrated communications. The results clarify characteristics of integrated communications as more holistic concept and advanced stage of evolution of integrated approach to communication.

The article presents current state of development of main electronic state services for individuals in Poland. Analysis of electronic services not fully solvable online is carried out, obstacles are revealed, actions aimed at their solution in electronic format are recommended. Conclusions on further development of electronic state services for individuals are drawn.

The paper considers the features of the diagnostic control of power installations of power plant via expert diagnostic system of functional hybrid type named SKAIS. SKAIS, the system of control, analysis and monitoring of changes in the power plant state, is a dialogue, mode driven software system, designed for diagnostics and expertise of any power plants. SKAIS makes it possible to diagnose decline in economic efficiency, define amount, reasons and danger of current changes, forecast state, evaluate reliability, remaining life, longevity, risk level and damage from further power installation exploitation at early stages (with the use of accelerated tests). SKAIS system makes decisions toward surmouniting the conflict (maintenance or restriction) with the presentation of recommendations, prepared in the knowledge base (in the form of end products - decision rules) to operative and maintenance personnel of a thermal plant. The data base and knowledge base about all forced stops and equipment defects, deviations from the exploitation norms are made for that end.

The article is devoted to issues of creating of a system of corporate web site administration. It is demonstrated that such complex development as a corporate web site requires realization of strategic approach to its administration. This issue is not examined enough in Russian literature, is not considered in publications in full, that’s why it requires certain studies. The article analyzes modern approaches to organization of corporate site administration. Method of creating of a system of corporate guidance of Web-technologies in organizations is suggested.

The article considers new to information technologies industry approach to decision making - method of real options and review of methodologies of its numeric evaluation.

In 2000s, Russian large retailers captured a large share of the market and obtained a significant market power. This change in the market organization may enhance or deteriorate social welfare. Public interest in this issue stimulated adoption by the Russian Parliament (State Duma) of the law against the concentration of trade in the hands of a few firms. In this paper we consider the question of efficiency, in terms of social welfare, this kind of state intervention in the relations between retailers and manufacturers.

The article describes some examples of successful partnerships and the advantages of strategic partnerships. Also it is given evaluating method of partnership’s financial benefits, that is based on production technology within the cooperation. It is described the problem of optimal tasks distribution between partners. The solution of described problem allows to distribute tasks with minimal spending, taking into account basic recourses limits.

Main factors responsible for structure of effective system of corporate governance are defined on the basis of separate expert poll. Main conflicts of interests actual to Russian companies today are set out. Main obstacles for implementation of systems of corporate governance in Russia are considered: restructuring of culture of relations inside a joint-stock company, presence measure of insiders and outsiders, enforcement of by-laws etc. Recommendations for minimization of negative factors in the process of implementation of enterprise management systems are suggested.

The paper presents laboratory and in situ research data on interaction of geomechanical and physicochemical processes in Kuzbass coal of various ranks, considering temperature effect. Under analysis is the relation of stress-strain state, temperature and infrared radiation of coal. The authors study the role of temperature and microstructure of coal in energy and mass exchange processes (variation of mass, volatile yield, specific surface, internal methane relaxation energy and moisture content). Interrelation of outburst hazard and fire hazard in coal is discussed from the viewpoint of uniform stage-wise thermomechanics and thermochemistry of coal behavior in the course of coal formation and extraction. The article introduces an index for quantitative description of petrographic properties of coal. Using this index, the authors classify and describe petrographic groups of Kuzbass coal.

The article describes effects of local microplastic inelasticity in loam during propagation of P-wave with a frequency of 240–1000 Hz between two shallow wells, one holding piezoelectric pulse emitter and the other containing piezoelectric pulse receiver. Seismic record displays microplasticity phenomenon as the step-wise change of signal amplitude with time and the flat sections in the curve from microsecond to dozens microseconds long. The flats create short-terms breaks of the process-the time lags that depend on the signal amplitude. As a result, the first arrival time of the wave is changed, and the wave is transformed. It is presumable that microplasticity is conditioned by stress concentration at damages. The research findings are of use to solving applied problems in mining engineering and seismology.

The data on the world-strongest earthquake induced by hard mineral mining-Bachatsky earthquake (ML = 6.1) in Kuzbass on June 18, 2013-are reported. Seismic activation of the territory at the Bachatsky Open Pit Mine in 2012-2013 awoke three large earthquakes, sensibly affecting the Kuzbass towns. The authors have analyzed the results of experiments on temporal seismology nets in 2012 and the records of the after-shock train following the Bachatsky earthquake in 2013. The low energy seismic activity is revealed in rocks under the Bachatsky and Shestaki OPMs. It is found that small earthquakes cluster under the center of the open pit mine bottoms, and the larger earthquakes crowd under the pitwalls, and the depth of the earthquake sources is 3–4 km.

The authors investigate numerically stress-strain state of a granular material around a rigid circular inclusion in case of combined loading with continuous turn of shearing. Dilatancy, dry friction and viscosity are taken into account. It is shown that under certain conditions, the rigid inclusion undergoes the influence of a momentum of turn contrariwise the shearing. The numerical investigation results are compared with the relevant experiment data.

Under analysis is the compatibility model of two-phase flow in porous medium and deformation of the pore space. The model includes the equations of transfer of the medium components (fluid and porous matrix), derived from the conservation laws, the deformation consistency condition and the closing equations in the form of the generalized Hook law. It is shown that the system of the constitutive equations contains a series of small parameters, and the small parameter expansion allows a hierarchical sequence of models of certain deformation conditions. The null approximation and first approximation models are written in explicit form. It is found that if compact phases are incompressible, the first approximation equations go to the Buckley–Leverett model–like system with account for the change of the porous space. The zero approximation equations describe the porous medium behavior under condition of the unchanged volume. In this case, the equation of the pore pressure is separated from the equation of the elastic matrix. The analytical solutions derived for the zero approximation model in cylindrical coordinates feature shear stresses capable to cause failure.

The consistent patterns of low temperature-stimulated acoustic emission (TAE) in rocks of various genotypes and porosity, under uniaxial mechanical compression are experimentally examined and theoretically based. It is shown that these consistent patterns obtained in magmatic, metamorphic and sedimentary rocks qualitatively coincide. The authors compare limits of deformation stages in the tested rocks, found by a conventional method based on strain measurements in specimens under mechanical compression and by the TAE method. It is explained that the thermal acoustic emission phenomena are associated with the transfer of the studied objects between deformation stages depending on the initial faulted-porous structure of a geomaterial. The applicability of the TAE method to controlling stresses and their time and space dynamics in rocks is illustrated.

The article proposes to estimate electromagnetic energy saturation in a medium using a new processing method of georadar profiles based on continuous wavelet transform. The proposed method applicability to location of joints in a highly electroconductive frozen rock mass is illustrated.

The authors discuss issues of stage-wise rock bolting of mine workings. Using equivalent material models, permissible roof rock lamination for roof bolting in conformity with the excavation support standards is evaluated. The critical displacements of roof rocks that make stage-wise roof bolting impossible are calculated.

Effect of irregular structure of a compressed blocky rock mass on propagation of a hydrofracture in it is analyzed in the limit case when biaxial compression field is isotropic.

The article reports studies into the influence of negative temperature on energy consumption for failure of rocks. In terms of limestone sampled at the Udachny and Mokhsogollokh open pit mines and kimberlite sampled at the Internatsionalnaya and Udachnaya pipes, it is found that energy consumption for failure greatly decreases in the temperature range between −5 and −15 °С.

The author analyzes the physical sense of the seismicity characteristics most often used in assessment of failure hazard in mines. Based on the failure mechanics, the modified failure concentration criterion successfully used in failure prediction in Zhezkazgan copper mine is described and validated.

Topicality, concept, principles and tool of the robust control in open pit mineral mining are given. It is shown that each stage of the product quality control must have permissible range of fluctuation for coal properties and loading equipment capacity as well as spatial limits for components of the open pit work area. The goal and capabilities of the robust control is the stable operation of the production system within the set limits and constraints. The article presents methodology and implementation tool for the robust control at open pit coal mines.

Relations of the main characteristics of cutting (capacity, energy consumption and diamond tool wear) and the cable saw mode are presented for various heights of a cutting bench. The authors develop the cable saw control mode selection procedure accounting for the said relations of the cutting performance, cutting cost and the bench height. For the selection of the rational mode of the cable saw control, the integrated technical-and-economic index is offered, characterized by the cost related with the cutting intensity of stone blocks.

Klenovnik open pit mine in the Kostolac coal basin has been closed after coal reserves depletion. The land reclamation and renovation project is in process. The key concern is selection of the land reclamation method. Considering objectives of the reclamation project and the environmental conditions, 10 alternative scenarios are offered based on analysis of the influences and the project feasibility criteria. The ranging of the alternatives and the sound selection of the best scenario is possible using multi-attribute decision making techniques Promethee and Electre.

The article presents the results of the spectrum analysis of air distortion under train piston effect in the subway. The authors offer a procedure for estimating influence of air distortion on torsional behavior of tunnel fan rotor. It is shown that with a variable frequency drive, it is possible that harmonic frequencies of the disturbed flow coincide with the eigenfrequencies of the rotor.

The mathematical methods of forecasting microclimate conditions in an arbitrary layout network of excavations are developed based on analysis of formation of thermal environment in mines. The mathematical models allow calculation of heat distribution in excavations, considering hydrostatic compression-expansion of air in vertical and inclined workings, presence of heat liberation (absorption) and moisture transitions.

In focus are the conditions and features of a new ecological object of the lithosphere-the industrially changed interior of the Earth. The authors hypothesize on formation of geophysical ecotone and present the procedure for evaluating ecological indicators of the ecotone as applied to underground mineral mining.

It is possible to forecast variation in energy content and reactivity of ilmenite and arizonite concentrates after their mechanical activation using data of X-ray crystal analysis. It is found that energy of ilmenite and arizonite after mechanical activation differs from energy of structural failures within the minerals. Effect of the energy, accumulated in the course of mechanical activation in the form of the surface energy and microstrains, on the subsequent leaching process has been proved. The efficient preliminary mechanical activation of ilmenite and arizonite makes the background for manufacturing of artificial rutile from available mineral raw material.