Mathematical Model to Support Decision-Making to Ensure the Efficiency and Stability of Economic Development of the Republic of Kazakhstan

Author(s):  
Askar Boranbayev ◽  
Seilkhan Boranbayev ◽  
Malik Baimukhamedov ◽  
Askar Nurbekov
Author(s):  
Cezario B. Galvão ◽  
Angel P. Garcia ◽  
Daneil Albiero ◽  
Admilson Í. Ribeiro ◽  
Ângelo D. Banchi

ABSTRACT In the mechanical harvesting of sugarcane, a self-propelled harvester is used in conjunction with an agricultural implement named infield wagon, which has the function of storing and transporting the harvested product. Much of the cost of sugarcane production comes from this operation (30 to 60%). Among the operational costs of agricultural machinery, the cost of repair and maintenance (CRM) is relevant. Therefore, the objective of this study was to determine the parameters of the CRM mathematical model based on the life (hours of use) for the infield wagon, using the method of the American Society of Agricultural and Biological Engineers (ASABE). These CRM models were obtained for two sets of infield wagon from different manufacturers and their costs over up to 12 years. The model was adjusted and then validated using descriptive statistics methods. Fitted CRM equations were different for each analyzed set of infield wagon and, therefore, are a valuable tool in the management of mechanization in sugarcane mills as it provides elements that can support decision-making of managers in the acquisition and management of agricultural implements.


2014 ◽  
Vol 484-485 ◽  
pp. 196-201
Author(s):  
Li Chen ◽  
Hai Xia Wang

With the globalization of economic development, the application of mathematics throughout the various areas of probability and statistics is the use of modern engineering, social and economic research is a core of mathematics. Mathematical modeling provides a new way of thinking to the economic problems from the economic decision-making issues mathematical model of probability and statistics in the economic field.


Author(s):  
Artur Gizatullin ◽  
Andrey Ivantsov ◽  
Alexander Pavlov ◽  
Sergey Pavlov ◽  
Olga Khristodulo

A method for predicting threats in complex distributed systems is proposed, based on the intelligent analysis of large data arrays on the results of monitoring changes in water level in water bodies and air temperature at the measurement point, which makes it possible to increase the efficiency of planning and implementing measures to fend off such and similar threats. The method is based on general approaches and mathematical models previously used by the authors to develop adaptive algorithms for controlling gas turbine engines, which is especially relevant in the context of the increasingly widespread introduction of automatic means for monitoring the state of complex distributed systems and the exponential growth in the number of data used to support decision-making. The choice of the future value of the water level at the measurement point is carried out based on the results of processing the data accumulated for all previous flood periods on the compliance of the water level and its changes per day with the values of air temperature and its changes for the same day. The results of an experimental assessment of the accuracy of predicting the water level in the water bodies of the Republic of Bashkortostan in the flood period of 2021 are presented, which confirm the applicability of the proposed forecasting method to support decision-making to fend off threats in complex distributed systems from a sharp rise in water.


Author(s):  
Thandekile Phulu

In South Africa employees are protected by various pieces of legislation. Section 23 of the Constitution of the Republic of South Africa 1996 provides for a right to fair labour practice. In its preamble the Labour Relations Act 66 of 1995 (hereafter referred to as the LRA) states that the purpose of the Act is to advance economic development, social justice, labour peace and democratisation of the workplace. The LRA also states that one of its objectives is to give effect to and regulate the fundamental rights conferred by section 27 of the Constitution. The Occupational Health and Safety Act as amended by the Occupational Health and Safety Amendment Act 181 of 1993 provides for the health and safety of persons at work and for the health and safety of persons in connection with the use of plant and machinery. The LRA provides for dismissal for incapacity and dismissals for misconduct. It also differentiates between the two. The LRA provides for both substantive and procedural fairness when dismissing an employee for incapacity and misconduct. This paper will examine the rationale behind differentiating between dismissal for drunkenness and dismissal for alcoholism.


2020 ◽  
Vol 6 (3) ◽  
pp. 52-59
Author(s):  
Ilyos Odiljonov ◽  

This article discusses the role and importance of leasing in the economic development of the Republic of Uzbekistan, as well as the problems associated with investment in leasing and their solutions The purpose of the study is to develop conclusions, proposals and recommendations to improve the efficiency of leasing activities in improving the investment process in Uzbekistan


Author(s):  
Soraya Rahma Hayati ◽  
Mesran Mesran ◽  
Taronisokhi Zebua ◽  
Heri Nurdiyanto ◽  
Khasanah Khasanah

The reception of journalists at the Waspada Daily Medan always went through several rigorous selections before being determined to be accepted as journalists at the Waspada Medan Daily. There are several criteria that must be possessed by each participant as a condition for becoming a journalist in the Daily Alert Medan. To get the best participants, the Waspada Medan Daily needed a decision support system. Decision Support Systems (SPK) are part of computer-based information systems (including knowledge-based systems (knowledge management)) that are used to support decision making within an organization or company. Decision support systems provide a semitructured decision, where no one knows exactly how the decision should be made. In this study the authors applied the VlseKriterijumska Optimizacija I Kompromisno Resenje (VIKOR) as the method to be applied in the decision support system application. The VIKOR method is part of the Multi-Attibut Decision Making (MADM) Concept, which requires normalization in its calculations. The expected results in this study can obtain maximum decisions.Keywords: Journalist Acceptance, Decision Support System, VIKOR


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