The article gives a formulation of the problem of logistic management of forest resources. Different variants of its decision on the strategic and tactical levels are described
The article is devoted to the phase analysis as a tool preprocessor analysis of a multi-purpose center. Consider the time series of the daily number of requests received on the basis of the phase portraits of these time series. These time series have strong properties of cycles and periodicity. Practice has shown that in modern conditions, for example, for the Russian economy with its instability and financial crises, classical economic theory and statistics, built on linear models, turned out to be unproductive. Overview of approaches and economic-mathematical methods preprocessor analysis of evolutionary economic processes and the corresponding time series allows concluding the following: one versatile, satisfying all the requirements, do not possess the shortcomings of the method of analysis and forecasting does not exist. Each approach and each method has its advantages, disadvantages, limits of use. Most of the known methods of forecasting operate detected in the considered time series properties of cycles and periodicity. Thus, the mere presence of a pronounced cyclicity at different levels of the considered hierarchical model of the time series of the number of requests in a multi-purpose center are important indicators of the possibility of constructing an adequate predictive model number of requests in the multi-purpose centre
The article presents the results of bio-energetic and
economic evaluation of alternative technologies for
cultivation of winter wheat, developed in long-term
stationary experiments at Kuban State Agrarian
University. We study the effect of four factors on the
productivity of winter wheat, quality of soil, fertilizers
system, systems of soil tillage and systems of
protection. We have processed the data for 7
technologies in two rotations of 11 fields grain-grass
crop rotation in the Central part of the Krasnodar
region on leached black soil of plains of the
agricultural landscape. We have established, in the
first crop rotation, on the example of varieties of
Batyka and Krasnodarskaya 99, that there were
changes in costs of production, net profit and the cost
of 1 centner of grain, depending on the technology,
and the comparative evaluation of bioenergy impact of
alternative technologies of winter wheat cultivation to
consumption energy costs total energy. We have
calculated ratio net of efficiency depending on the
technology of cultivation of winter wheat. On the basis
of economic and bioenergetic calculations for farms
with different level of economy we have proposed an
alternative technology: for economically strong,
economically average, economically weak farms and
for farms located in protected areas where is
prohibited the use of chemicals. Thus, producers have a choice of alternative technologies of winter wheat,
which will contribute to maximizing profits and
obtaining competitive products
This article discusses the application of the method of selective transfer to restore the plunger pairs of high pressure fuel pumps of diesel engines. To restore plunger pairs the authors of the article propose to use an anti-friction repair-and-renewal composition on the basis of the mineral serpentinite
This article highlights the Bolsheviks's attempts to streamline land relations in the countryside and to direct the peasantry in channel of the collective land using during the period of the NEP. The author shows that these initiatives have not been
successful, whereby the land problems have not been solved. Land in the village was still shared, rented, and actually bough
The article gives an example of usage of the tool for round-wood transport planning from the Decision Support System “Forest Logistic Toolset” for com-pare of two approaches to the organization of international wood transportation
Within emerging knowledge economy, the current issue is efficient use and reproduction of knowledge in socio-economic systems. One of the promising approaches to the creation of working knowledge management system is based on the open ontological knowledge network. The knowledge network is the model of the process of knowledge sharing, implemented in the virtual space, which inherits the advantages of this process and removes some of its shortcomings. Ontology is a basic component of the conceptual model of the knowledge network; it describes a system of knowledge and defines the structure of data storage in the network. The hierarchy of ontologies involves three levels: metaontology, basic and subject-specific ontology. The ontology use solves two tasks: providing a tool for semantic markup of information resources and disclosing the structure of the information storage for the user. The second task is especially important to ensure an efficient search in large data arrays. The technology of construction of open network includes a set of principles and tools for filling and updating of the domain ontology, fast semantic markup and retrieval of information resources taking into account their semantic links
At calculations, we have used the next assumptions: 1.
Not excluded systematic errors distributed with equal
probability; 2. Random errors are normally distributed;
3. Total error is the composition of not excluded
systematic and random errors. In calculating of
measurement error of pressure, we proceeded from
working formula. The confidence interval of each
variable less than instrumental error, therefore, to
characterize the total error of the measured value P, we
use the instrumental errors of all variables. In
estimating of temperature measurement error was
consider the systematic and random error. To estimate
random error we used measurement data of the specific
volume of water on six isotherms. Obtained values
were compared with published data. As an approximate
estimate of the random error of our experimental data,
we can take it as a total for all the isotherms of the
specific volume in comparison with the published data.
For studied fractions confidence limit of total error of
measurement results located in the range of 0,03 ч
0,1%. At temperatures close to the critical increasing
influence of errors of reference and the error associated
with the introduction of corrections on the thermal
expansion of the piezometer. In the two-phase area
confidence limit of total error increases and located
between 0,08 ч 0,15%. This is due to the sharp increase
in this area of reference error of pressure and error in
determining to the weight of the substance in the
piezometer
The article estimates of the qualitative characteristics of
the urban public transport work on the example of
municipality of Magadan in the light of traffic safety,
comfort, reliability and other activities. By means of
SWOT-analysis, the degree of influence of surrounding
factors on the municipality transport infrastructure is
examined. As a result, the basic directions of improving
organizational structures of urban public transport
management on the municipal level are determined
To develop detailed and effective business model of
bakery enterprises of consumer cooperation it is
necessary to have knowledge on strategic goods
displayed on a busy segment of the market, not only in
volumetric terms, but in the parameters that
characterize the stability of sales or consumption. The
particular relevance of this study reveals in modern
conditions of functioning. The outcome of the baking
enterprises of consumer cooperatives is more than 760
tons per day, distributed between 41 baking enterprise
producing more than 300 kinds of products. Of course,
the information on quantitative and qualitative
characteristics of the strategic positions of the range
will be a key in making managerial decisions about the
production of the program, resourcing, turnover, etc.
To solve the problem we have chosen the method of
ABC - and XYZ-analysis of assortment of production,
based on the criteria of ease of use and breadth of the
resulting information. As a result of the application of
the methods of ABC and XYZ-analysis and combining
the obtained results, we present a classification of the
range of the baking enterprises of consumer
cooperation product based on the criteria of the
contribution of commodity positions in revenue and
stability of sales