INFORMATION SYSTEMS AND LOGISTICS IN CIVIL ENGINEERING

Modeling of regional warehouse network generation

Vestnik MGSU 8/2016
  • Popov Pavel Vladimirovich - Volzhskiy Institute of Humanities, Branch of Volgograd State University (VolGU) Candidate of Technical Sciences, Associate Professor, Department of Applied Mathematics and Computer Science, Volzhskiy Institute of Humanities, Branch of Volgograd State University (VolGU), 11, 40 Let Pobedy str., Volzhskiy, Volgograd Region, 404133, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Khartovskiy Vadim Evgen’evich - Yanka Kupala State University of Grodno (YKSUG) Candidate of Physical and Mathematical Sciences, chair, Department of Logistics and Control Method, Yanka Kupala State University of Grodno (YKSUG), 22 Ozheshko str., Grodno, 230023, Republic of Belarus; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 133-142

One of the factors that has a significant impact on the socio-economic development of the Russian Federation’s regions is the logistics infrastructure. It provides integrated transportation and distribution service of material flows. One of the main elements of logistics infrastructure is a storage infrastructure, which includes distribution center, distribution-and-sortout and sortout warehouses. It is the most expedient to place distribution center in the vicinity of the regional center. One of the tasks of the distribution network creation within the regions of the Russian Federation is to determine the location, capacity and number of stores. When determining regional network location of general purpose warehouses methodological approaches to solving the problems of location of production and non-production can be used which depend on various economic factors. The mathematical models for solving relevant problems are the deployment models. However, the existing models focus on the dimensionless power storage. The purpose of the given work is to develop a model to determine the optimal location of general-purpose warehouses on the Russian Federation area. At the first stage of the work, the authors assess the main economic indicators influencing the choice of the location of general purpose warehouses. An algorithm for solving the first stage, based on ABC, discriminant and cluster analysis were proposed by the authors in earlier papers. At the second stage the specific locations of general purpose warehouses and their power is chosen to provide the cost minimization for the construction and subsequent maintenance of warehouses and transportation heterogeneous products. In order to solve this problem the authors developed a mathematical model that takes into account the possibility of delivery in heterogeneous goods from suppliers and manufacturers in the distribution and storage sorting with specified set of capacities. The model allows determining the capacity and location of the home network of warehouses in the Russian Federation regions based on the minimization of the total costs associated with the delivery of goods from suppliers / manufacturers to the warehouse and from the warehouse to customers, material handling products, and annual operating costs for the maintenance of the core network of warehouses.

DOI: 10.22227/1997-0935.2016.8.133-142

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AUTOMATED ANALYSIS OF AN ENGLISH SENTENCE GRAMMAR WHILE EXECUTING A COMPUTER TRANSLATION OF TEXTS ON CIVIL ENGINEERING

Vestnik MGSU 1/2017 Volume 12
  • Bessonova Elena Vladimirovna - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Philological Sciences, Associate Professor, Head of Department of Foreign Languages and Professional Communication, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Sak Aleksandr Nikolaevich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Philological Sciences, Associate Professor, Department of Foreign Languages and Professional Communication, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Pages 106-116

The need for permanent access to scientific articles in English, or instructions on the use of construction equipment and devices, as well as the need for processing an information about new technologies mean that the development of a computer translation system for the construction industry is necessary. Development of object-oriented programming languages allows to present objects containing a great deal of information in the most convenient way in terms of tasks facing a developer. The article deals with problems of presentation of sentence lexical units as objects in C# language. Issues of specific features of translation of corresponding lexemes in view of English and Russian grammar in the sphere of construction are also regarded in the article. Authors tried to avoid presenting a lexical-semantic structure of sentence by means of metalanguage which is a mediator making the translation system considerably heavier, by creating a more easy and understandable structure. For this purpose, certain rules of lexical and grammatical correlation of a declarative sentence in the English and Russian languages are established. Specific features of processing of html-pages of online dictionaries used as thesauri of lexical units in translation are taken into account. Development of automation means for translation in the sphere of construction is beneficial even for small amounts of a text being translated because in this case the human factor is excluded.

DOI: 10.22227/1997-0935.2017.1.107-116

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USE OF AUTOMATED SYSTEMS FOR MONITORING OF STRUCTURES (ASMS)

Vestnik MGSU 2/2017 Volume 12
  • Sopegin Georgiy Vladimirovich - Perm National Research Polytechnic University (PNRPU) Master Student, Department of Construction Engineering and Material Science, Perm National Research Polytechnic University (PNRPU), 29 Komsomol’skiy prospekt, Perm, 614990, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Sursanov Dmitriy Nikolaevich - Perm National Research Polytechnic University (PNRPU) Senior Lecturer, Department of Construction Technology and Geotechnics, Perm National Research Polytechnic University (PNRPU), 29 Komsomol’skiy prospekt, Perm, 614990, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 230-242

Buildings and installations in the course of construction and operation have to withstand sometimes tremendous loads and stresses depending on the impact of external factors and operating loads. Such external factors influencing the strains of buildings and installations may be the changes of external climatic conditions such as diurnal variation of air temperature, snow loads and seismic forces. Permanent impacts of external factors and operating loads result in gradual deterioration of buildings and installations, and at excess of rated loads they lead to premature wear, irreversible strains and destruction of structural elements. it is necessary to perform periodic inspections of structures in order to monitor and predict the state of structural elements of buildings and installations, for the purpose of the early warning of changes of geometrical parameters towards the unfavorable situation development. The need to track a state of erected buildings and installations, as well as to collect and analyze information during the whole period of operation resulted in development and implementation of automated systems for monitoring of the state of structures (ASMS). This article considers the general issues on organization of ASMS, with the examples of application of these systems in construction. Automated systems for monitoring of structures should be considered as the important constituent of the general system of the construction industry projects safety. Use of automated monitoring systems makes it possible to promptly obtain and analyze the current data about a state of erected or operated building; these systems may be effectively used for testing of foundations and structural elements of buildings and installations.

DOI: 10.22227/1997-0935.2017.2.230-242

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INFLUENCE OF SOCIOECONOMIC INDICATORS ON THE REGIONAL WAREHOUSE INFRASTRUCTURE FORMATION

Vestnik MGSU 2/2017 Volume 12
  • Popov Pavel Vladimirovich - Volzhsky Humanities Institute (Affiliate of) Volgogradsky State University (VHI (Affiliate of) VolSU) Associate Professor, Department of Applied Mathematics and Informatics, Volzhsky Humanities Institute (Affiliate of) Volgogradsky State University (VHI (Affiliate of) VolSU), 11, 40 Let Pobedy St., Volzhsky, Volgograd region, 404133, Russian Federation.
  • Miretskiy Igor' Yur'evich - Volzhsky Humanities Institute (Affiliate of) Volgogradsky State University (VHI (Affiliate of) VolSU) Professor, Department of Applied Mathematics and Informatics, Volzhsky Humanities Institute (Affiliate of) Volgogradsky State University (VHI (Affiliate of) VolSU), 11, 40 Let Pobedy St., Volzhsky, Volgograd region, 404133, Russian Federation.

Pages 222-229

Well-developed logistics infrastructure of a region makes a positive impact on types of economic activities that are included in the structure of production of a gross regional product. Basic constituents of the logistics infrastructure are transport and freight terminals, warehouses, transportation companies, manufacturing enterprises, wholesale and retail trade organizations, etc. The article concentrates on solving the actual problem related to the assessment of the degree of influence of basic socio-economic indicators on selection of towns of regional subordination and districts of the Volgograd region where a location of network of distributing and assorting warehouses is expedient. For assessment of influence of the considered parameters on selection of towns of regional subordination and districts of the Volgograd region, where the location of the warehouse network is expedient, a two-step cluster analysis was chosen which makes it possible not just to divide the selection into classes with similar values of indicators but also to assess the degree of influence of considered features on partitioning of objects into groups (clustering). On the basis of the two-step cluster analysis the indicators were determined which exert a significant influence on the location of the regional warehouse network. For the quantitative assessment of influence of basic socio-economic indicators on selection of towns of regional subordination and districts of the Volgograd region where the location of the warehouse network is expedient, the discriminant analysis was applied. The use of discriminant analysis made it possible to quantitatively assess the influence of socio-economic indicators on selection of locations of warehouses, and to determine, with a high degree of probability, where the formation of a regional warehouse network is possible. Thus, it can be concluded that the socio-economic indicators exerting the crucial influence on selection of towns of regional subordination and districts of the Volgograd region should include "Investments in Fixed Assets", "Cargo Turnover of Motor Transport" and "Carriage of Cargo by Motor Transport".

DOI: 10.22227/1997-0935.2017.2.222-229

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PECULARITIES OF THE SYNTHESIS OF DIGITAL NONLINEAR CONTROL WITH ELECTRO-HYDRAULIC DRIVE

Vestnik MGSU 3/2017 Volume 12
  • Prokopiev Andrey Petrovich - Siberian Federal University (SFU) candidate of technical science, associate Professor, Department of Building materials and construction technology, Siberian Federal University (SFU), 82 Svobodnyy prospect, Krasnoyarsk, 660041, Russian Federation.
  • Ivanchura Vladimir Ivanovich - Siberian Federal University (SFU) Doctor of Technical Science, Professor, Siberian Federal University (SFU), 82 Svobodnyy prospekt, Krasnoyarsk, 660041, Russian Federation.
  • Emelianov Rurik Timofeevich - Siberian Federal University (SFU) doctor of technical science, Professor, Department of Building materials and construction technology, Siberian Federal University (SFU), 82 Svobodnyy prospect, Krasnoyarsk, 660041, Russian Federation.
  • Safarov Nidjat Afik - Siberian Federal University (SFU) postgraduate student, Department of Roads and building, Siberian Federal University (SFU), 82 Svobodnyy prospect, Krasnoyarsk, 660041, Russian Federation.

Pages 346-353

The method of synthesis of digital nonlinear control with an electro-hydraulic drive is proposed. It is based on the combination of the method of synthesis of the digital part of the system with a continuous prototype and the expert approach. At the first stage, the continuous regulator is synthesized based on known techniques. At the second stage, a transition to the digital regulator is performed with the help of the z -transformation and the difference equation is determined. The sampling period is selected at a frequency greater than the frequency that determines the bandwidth of the continuous electrohydraulic drive control system (its degree is determined by way of further modeling and evaluation of the results obtained). In the third stage, the modeling for digital control options with selected sampling frequencies and recalculated parameter values of the regulators is carried out. The example of the synthesis of a digital regulator with the use of electro-hydraulic control system is given.

DOI: 10.22227/1997-0935.2017.3.346-353

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INFORMATION SUPPLY FOR SOLAR THERMAL SYSTEMS MATHEMATICAL MODELING

Vestnik MGSU 6/2017 Volume 12
  • Kitaytseva Elena Khalilovna - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Associate Professor, Information Systems, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Konstantinova Daria Arkadyevna - Moscow State University of Civil Engineering (National Research University) (MGSU) postgraduate student, Information Systems, Technologies and Automation in Construction Department, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Pages 687-691

Solar thermal system are its constituent elements with their connection between each other, thermal processes within them and also input/output data. The conjunction of external and internal factors determines the efficiency of solar thermal system. No excess heat as well as its deficiency displays us high level efficiency of system. The initial data for modeling of solar thermal systems functioning are dissimilar. Parameters of system’s equipment are constant. Solar radiation amount and water consumption are variable data. The more close initial data to reality, the more definite simulated result is. The main problem is in unpredictability of water consumption by the reason of daily regime and requirement of each user. In this way user is the most instable element of the system. In this study the input data for mathematical modeling of solar thermal systems was analyzed. The climatic databases and standard specifications of hot water demand were also analyzed. The operability estimation method for solar thermal systems with variable input data was offered. The extent of suitability of any solar thermal system can be defined by certain characteristic. The value of this characteristic displays energy accumulation process.

DOI: 10.22227/1997-0935.2017.6.687-691

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