scholarly journals Economic and mathematical modeling as an effective tool of the analysis of economic processes in industry

2019 ◽  
Vol 12 (3) ◽  
pp. 316-322
Author(s):  
A. S. Kulyasova ◽  
A. R. Esina ◽  
V. D. Svirchevskiy
Keyword(s):  
Mathematical Model ◽  
Resource Allocation ◽  
Foreign Currency ◽  
High Tech ◽  
Calculation Error ◽  
Allocation Mechanism ◽  
Industrial Enterprises ◽  
Statistical Regularities ◽  
Cost Of Materials ◽  
The Cost

In conditions of market volatility, an important issue for industrial enterprises is the issue of creating an efficient resource allocation mechanism. The article gives an example about using of individually adapted economic and mathematical model for forecasting the cost of materials and purchased products, that takes into account both internal and external factors affecting the planning figures. In order to create an effective predictive model, an analysis was conducted of statistical data for the period from 2009 to 2016, data was represented by high-tech enterprises of the radioelectronic industry. As a result of analysis it was revealed the presence of statistical regularities in the nature of the distribution of the analyzed data.On the basis of the calculated distribution parameters, a prediction procedure was performed using the exponential smoothing method and the total projected cost of materials and purchased products was obtained. The use of elements of probability theory and mathematical statistics, as well as methods for forecasting time series as basic methods of the model allows to take into account probabilistic economic factors, such as, for example, a change in the exchange rate of a foreign currency, as well as the presence of defects in the production process. Application of a special mathematical apparatus provides an ability to create a flexible, individually-adapted forecasting model. As a result of application of the model intended for forecasting the cost of materials and purchased products at one of industry enterprises it was revealed that the developed model has lover calculation error than the method that is used at the enterprise at present. Thus economic and mathematical model allows increasing the efficiency of the enterprise’s planned system and ensuring a rational resource allocation by increasing the accuracy of the forecasting process.

Influence of contribution-based resource allocation mechanism on individual resource sharing cooperation in social networks

2019 ◽  
Vol 30 (12) ◽  
pp. 2050007
Author(s):  
Guanghai Cui ◽  
Zhen Wang ◽  
Ling Dong ◽  
Xiaoli Cao ◽  
Yue Liu ◽  
...  
Keyword(s):  
Social Networks ◽  
Resource Allocation ◽  
Resource Sharing ◽  
Evolutionary Dynamics ◽  
Allocation Mechanism ◽  
Total Contribution ◽  
Cooperation Strategy ◽  
Individual Strategies ◽  
The Cost ◽  
Work First

In social networks, resource sharing behaviors always take place in groups of individuals and rely on voluntary cooperation. In this work, first, a multi-player donor recipient game in which strategies describe individuals’ varying degrees of willingness to share resources is formulated, instead of using the limited binary decisions (e.g. share or not share) in a classical donor-recipient game. Second, the evolutionary dynamics of individual strategies are explored under the influence of two contribution-based resource allocation mechanisms: the total contribution-based allocation mechanism (TCAM) and the direct contribution-based allocation mechanism (DCAM). The results indicate that the network is dominated by the full-cooperation strategy when the cost-to-benefit ratio of resources is not too large and the DCAM is more effective than TCAM. Furthermore, the underlying reason why some strategies with higher sharing willingness can coexist in specific situations, is also explained in detail by leveraging macroscopic and microscopic perspective analysis. Finally, the influences of slandering and whitewashing behaviors conducted by a few malicious individuals on the allocation mechanisms are also studied. Current research will offer new insights into understanding the influence and optimizing the resource allocation policies in social networks.

scholarly journals METHOD FOR CALCULATING THE COMPOSITION OF CELLULAR CONCRETE

2021 ◽  
pp. 77-85
Author(s):  
V. Martynov ◽  
◽  
O. Martynova ◽  
S. Makarova ◽  
O. Vietokh ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Block Diagram ◽  
Minimum Cost ◽  
Universal Method ◽  
Data Array ◽  
Advantages And Disadvantages ◽  
Cost Of Materials ◽  
The Cost ◽  
Three Factor ◽  
Cellular Concrete

The analysis of existing methods for calculating concrete compositions was carried out. The characteristics and sequence of the calculation-experimental and experimental-calculation methods for the selection of concrete compositions are provided. The advantages and disadvantages of each of the methods are described. These methods are generalized by the general systemic cycle PDCA (Deming cycle), which is determined by the sequence of actions: P (plan) ‒ D (do) ‒ C (check) ‒ A (Action). It was established that for calculating the compositions of the cellular method there is no universal method, which would ensure the achievement of the required strength and average density at the same time. Based on the above, the aim of the thesis was formulated. The aim of the thesis is to develop a method for calculating the composition of cellular concrete, based on experimental-statistical models, which would ensure the production of concrete with the required properties while minimizing the cost of raw materials. A calculation algorithm, a block diagram and a computer program for designing cellular concrete compositions based on experimental-statistical modeling were developed. Using the example of the specified block diagram for calculating concrete compositions, the sequence of calculations is described in detail. The essence of the calculations is that the three-factor mathematical model of the property parameter of cellular concrete, which is supposed to be guaranteed, leads to a second order equation. After that, the roots of the equation are determined. They are substituted into a mathematical model and the composition of concrete is determined in natural values of variable factors. After that, the cost of the composition is determined, which is entered into the data array. Then one of the factors changes, according to the set step and the cycle repeats. At the last stage, the formed data array is processed and the composition with the minimum cost of materials is determined. Testing of the developed software was carried out by processing and calculating a three factor experiment. As a result, the composition of cellular concrete which provides the required strength of foam concrete with a minimum cost of materials, was determined.

scholarly journals MANAGEMENT MECHANISM FORMATION OF INNOVATIVE INDUSTRY INVESTMENT DEVELOPMENT ADEQUATE TO MODERN CONDITIONS

2016 ◽  
Vol 2016 (5) ◽  
pp. 96-107
Author(s):  
Наталья Грачева ◽  
Natalya Gracheva
Keyword(s):  
Mathematical Model ◽  
Security Level ◽  
Market Demand ◽  
Risk Capital ◽  
Industrial Enterprises ◽  
Financial Credit ◽  
Common Interests ◽  
The Cost ◽  
Industry Structures ◽  
Innovative Industry

Recommendations for using venture capital as an investment of innovative programs and projects of industrial enterprises structures are made. The use of its and extra means is optimized at stages of innovation life cycle. The economic-mathematical model of a possible risk capital appreciation and extra means de-pending on security level of innovative programs and projects by own resources in the form of profit got from released innovations is developed. Options of profit formation depending on the cost of innovations and market demand are considered. The economic-mathematical model reflecting this dependence is of-fered. The economic-mathematical model of receiving profit is developed by option of short-term and long-term turnover of innovations and also methodical ap-proach to distribution of profit on innovative processes between beneficiaries is offered. The economic-mathematical model of determination of innovative efficiency of the enterprise at execution of functions by its structures on production and initiative subject. The options of their work in the conditions of openness for the external environment are investigated. Investment sources of their activity are shown. Recommendations on partnerships formation between industrial enterprises and financial-credit institutions as the bases of innovative industry structures inclusion in this cooperation are made. The principles of their relationship are defined: systemacity, common interests, mutual benefit, stability, knowledge.

The limit of the contemporary financial system in Russia

2020 ◽  
Vol 16 (7) ◽  
pp. 1223-1245
Author(s):  
V.V. Smirnov
Keyword(s):  
Cluster Analysis ◽  
Foreign Currency ◽  
Financial System ◽  
Descriptive Statistics ◽  
High Tech ◽  
Monetary Aggregate ◽  
Internal System ◽  
Monetary Relations ◽  
And Cluster Analysis ◽  
Structural Preservation

Subject. The article focuses on the modern financial system of Russia. Objectives. I determine the limit of the contemporary financial system in Russia. Methods. The study is based on methods of descriptive statistics, statistical and cluster analysis. Results. The article shows the possibility of determining the scope of the contemporary financial system in Russia by establishing monetary relations as the order of the internal system and concerted operation of subsystems, preserving the structure of the financial system, maintaining the operational regime, implementing the program and achieving the goal. I found that the Russian financial system correlated with the Angolan one, and the real scope of the contemporary financial system in Russia. Conclusions and Relevance. As an attempt to effectively establish monetary relations and manage them, the limit of the contemporary financial system is related to the possibility of using Monetary Aggregate M0 to maintain the balance of the Central Bank of Russia. To overcome the scope of Russia’s financial system, the economy should have changed its specialization, refocusing it on high-tech export and increasing the foreign currency reserves. This can be done if amendments to Russia’s Constitution are adopted. The findings expand the scope of knowledge and create new competence in the establishment of monetary relations, order of the internal system and concerted interaction of subsystems, structural preservation of the financial system and maintenance of its operational regime.

Modernization of Water Treatment System at Agricultural Enterprises Due to Introduction of Solar Energy

2020 ◽  
Vol 67 (1) ◽  
pp. 142-147
Author(s):  
Alina A. Aleksandrova ◽  
Maksim S. Zhuzhin ◽  
Yuliya M. Dulepova
Keyword(s):  
Mathematical Model ◽  
Water Treatment ◽  
Solar Energy ◽  
Energy Saving ◽  
Electric Energy ◽  
Solar Water Heater ◽  
Water Heater ◽  
Agricultural Enterprises ◽  
Solar Water ◽  
The Cost

Energy saving today is an integral part of the development strategy of agricultural organizations. Considerable attention is paid to the modernization and automation of technological processes in agricultural enterprises, which can improve the quality of work and reduce the cost of production. The direction of modernization is to reduce the consumption of electric energy by improving the water treatment system in livestock complexes. (Research purpose) The research purpose is to determine the potential of solar energy used in the Nizhny Novgorod region and to determine the possibility of its use for water heating in livestock complexes and to consider the cost-effectiveness of using a device to heat water through solar energy. (Materials and methods) Authors used an improved algorithm of Pixer and Laszlo, applied in the NASA project «Surface meteorology and Energy», which allows to calculate the optimal angle of inclination of the device for heating water. (Results and discussion) Designed a mock-up of a livestock complex with a solar water heater installed on the roof, protected by patent for invention No. 2672656. A mathematical model was designed experimentally to predict the results of the plant operation in non-described modes. (Conclusions) The article reveales the optimal capacity of the circulation pump. Authors have created a mathematical model of the device that allows to predict the water heating in a certain period of time. The article presents the calculations on the energy and economic efficiency of using a solar water heater. An electric energy saving of about 30 percent, in the economic equivalent of 35 percent.

scholarly journals An Optimized Mathematical Model for Items Supplies Planning of a Logistic System

2016 ◽  
Vol 10 (10) ◽  
pp. 133
Author(s):  
Mohammad Ali Nasiri Khalili ◽  
Mostafa Kafaei Razavi ◽  
Morteza Kafaee Razavi
Keyword(s):  
Mathematical Model ◽  
Mixed Integer ◽  
Logistics System ◽  
Proposed Model ◽  
Multiple Objective Decision Making ◽  
System Requirements ◽  
Purchasing Logistics ◽  
The Cost ◽  
The Mathematical Model ◽  
First Time

Items supplies planning of a logistic system is one of the major issue in operations research. In this article the aim is to determine how much of each item per month from each supplier logistics system requirements must be provided. To do this, a novel multi objective mixed integer programming mathematical model is offered for the first time. Since in logistics system, delivery on time is very important, the first objective is minimization of time in delivery on time costs (including lack and maintenance costs) and the cost of purchasing logistics system. The second objective function is minimization of the transportation supplier costs. Solving the mathematical model shows how to use the Multiple Objective Decision Making (MODM) can provide the ensuring policy and transportation logistics needed items. This model is solved with CPLEX and computational results show the effectiveness of the proposed model.

scholarly journals An Efficient Resource Allocation Mechanism for LTE–GEPON Converged Networks

2013 ◽  
Vol 22 (3) ◽  
pp. 437-461 ◽  
Author(s):  
Chathurika Ranaweera ◽  
Elaine Wong ◽  
Christina Lim ◽  
Ampalavanapillai Nirmalathas ◽  
Chamil Jayasundara
Keyword(s):  
Resource Allocation ◽  
Allocation Mechanism ◽  
Efficient Resource ◽  
Resource Allocation Mechanism

Research on Enterprises Resettlement in the Second Urban Land Resource Development - Taking High-Tech Zone in Suzhou for Example

2013 ◽  
Vol 357-360 ◽  
pp. 1465-1469
Author(s):  
Yong Du ◽  
Wen Xue Yu
Keyword(s):  
Resource Development ◽  
Urban Land ◽  
Space Distribution ◽  
Secondary Development ◽  
High Tech ◽  
Land Resource ◽  
Construction Land ◽  
Second Development ◽  
Industrial Enterprises ◽  
The City

As cities are expanding of China, many industrial enterprises have been surrounded in the center of the, which have a big effect on the environment of the city. As a result, its necessary to remove these enterprises. The second urban land resource development is an efficient solution to the problem. This article takes the secondary development of land in High-tech Zone of SuZhou for example and defines second development of land. In addition, puts forward suitable type of settling down the moving enterprises because of urban land second development. The study aims at promoting the rational use of land, adjusting space distribution of construction land, disposing land resource reasonably, increasing using rate of the construction land and makeing ecological environment of the city be better.

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