scholarly journals Variants of the layout of the main technological equipment on the base chassis of mobile transport and reloading rope complexes and their comparative analysis

2021 ◽  
Vol 7 (3) ◽  
pp. 236-250
Author(s):  
I.A. Lagerev ◽  
◽  
A.V. Lagerev ◽  
V.I. Tarichko ◽  
◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Structural Design ◽  
Load Capacity ◽  
Mining Industry ◽  
Hydraulic Cylinder ◽  
Technological Equipment ◽  
Advantages And Disadvantages ◽  
High Load Capacity ◽  
Design Options

Mobile ropeways formed by mobile transport and reloading rope complexes (terminal stations) on the basis of self-propelled wheeled chassis of high load capacity and cross-country ability are a promising type of transporting equipment for use in many branches of industrial production and maintenance – construction and mining industry, forestry and agriculture, elimination of the consequences of natural and man-made disasters, etc. The article develops a classification of self-propelled terminal stations based on such features as the location of the key element of the main technological equipment — the end tower of the rope system — on a wheeled chassis and the type of its fixation in the working position during the operation of the mobile ropeway. As promising variants of the structural design of mobile transport and technological rope complexes, options with an end, central and remote arrangement of the end tower; with hydraulic, rope, rope-hydraulic and rod types of fixing the end tower in the working position; with the installation of the end tower in the working position directly by a lifting hydraulic cylinder, using a folding rod and two-stage lifting are proposed. A brief description of the designs and the principle of operation of a large number of modifications of self-propelled terminal stations of various listed variants of the structural design of mobile rope complexes is given when preparing them for operation and during operation itself. A comparative analysis of the considered variants of mobile rope complexes is carried out on the basis of taking into account their main design and technical and economic characteristics, which made it possible to formulate both advantages and disadvantages of different design options.

Research of methods of protecting organizations from inimical mergers and acquisitions

2020 ◽  
pp. 29-45
Author(s):  
O.A. Naydis ◽  
I.O. Naydis
Keyword(s):  
Comparative Analysis ◽  
Mergers And Acquisitions ◽  
Positive Effects ◽  
Advantages And Disadvantages ◽  
Preventive Methods

The article considers the types, forms, mechanisms and classification of mergers and acquisitions, identifies their positive effects, and studies the tactics of acquisitions. The analysis of anti-capture measures: active and preventive methods of protection against hostile mergers and acquisitions. A comparative analysis of anti-capture measures with acquisitions tactics was carried out, the advantages and disadvantages of their application were identified.

scholarly journals US INVESTMENTS IN PRIORITY SECTORS OF THE ECONOMY OF KAZAKHSTAN

THE BULLETIN ◽  
2020 ◽  
Vol 5 (387) ◽  
pp. 199-207
Author(s):  
G. Т. Shakulikova ◽  
◽  
Zh. K. Yerzhanova ◽  
Zh. Zh. Gabbassova ◽  
R. A. Karabassov ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Stock Market ◽  
Foreign Investment ◽  
Mining Industry ◽  
Raw Material ◽  
Key Factors ◽  
Investment Funds ◽  
The Public ◽  
Advantages And Disadvantages ◽  
Returns On Investment

In the conditions of self-isolation, a small and medium business suffered as a result of a pandemic, however, large business remained afloat due to large “long money”. Large business in Kazakhstan is mainly a raw material business, i.e., the mining industry, as a priority, has not suspended its activities. The tasks in the field of attracting investment remained the same. For Kazakhstan, in the direction of attracting foreign investment, firstly, it is worth identifying competitive sectors of the economy. Secondly, clearly understand the key factors in the development of these industries. Thirdly, to conduct a comparative analysis and assess the advantages and disadvantages in relation to other countries, which will be the main competitors in this industry. Fourth, identify potential investors. Fifth, optimize the activities of the coordinating agency or body that is responsible for investments in Kazakhstan. For US investors, the stock market in Kazakhstan is very small. It presents mainly companies in the mining and financial sectors of the economy, as well as the public sector. The limited financing opportunities in the stock market do not allow providing higher returns on investment funds, and this in turn negatively affects the influx of potential investors and investors.

Technique Employing Topology Optimisation to Determine Panel-to-Panel Support Bracket Positions in a Spacecraft Body

2019 ◽  
pp. 4-19
Author(s):  
A.A. Borovikov ◽  
A.G. Leonov ◽  
O.N. Tushev
Keyword(s):  
Real Time ◽  
Structural Design ◽  
Pilot Project ◽  
Topology Optimisation ◽  
Advantages And Disadvantages ◽  
Design Engineers ◽  
Minimum Number ◽  
Early Design Stages ◽  
Design Options ◽  
Further Development

The paper presents a real-time technique for determining the minimum number of panel-to-panel support brackets in an unpressurised spacecraft body and their installation positions employing topology optimisation in order to satisfy the dynamic compatibility requirements between the spacecraft and its launch vehicle. These support brackets connect honeycomb panels of the spacecraft body, which form the foundation of its structural design. The technique should be used at early design stages (such as pilot project and draft design) to generate structural design options in real time. We provide a general approach to using the technique as well as its detailed description based on a test problem example utilising the MSC. Patran/Nastran software package. We stated the optimisation problem mathematically and described its parameter selection. We list primary advantages and disadvantages of this technique as compared to the classical use of topology optimisation. Results obtained via the technique proposed may be used as guidelines for design engineers developing design documentation. The paper also outlines potential further development of the technique.

Development of Linkage-Cam Reducers and Series Design

2010 ◽  
Vol 20-23 ◽  
pp. 309-312
Author(s):  
Hong Ling Hou ◽  
Yong Qiang Zhao ◽  
Guo Hai Zhang ◽  
Bao Ming Wang
Keyword(s):  
Structural Design ◽  
3D Model ◽  
High Efficiency ◽  
Load Capacity ◽  
High Load ◽  
Operating Principle ◽  
Design Model ◽  
Series Design ◽  
New Type ◽  
High Load Capacity

It is introduced the new linkage-cam combination mechanism that has been designed and analyzed performance in the paper. Based on it and gear one teeth theory, the new type linkage-cam reducer has been successfully developed and have done structural design, model trial and industry testing ,the result is shown that the linkage-cam reducer have big drive ratio, enough high load capacity, high efficiency and so on, which provide a new type reducer for domestic reducer. Based on the operating principle and structure of linkage-cam reducers, series parameters are worked out and finally determined 9 types and 10 drive ratios. The specify type linkage-cam reducers are created 3D model，which makes series design slight simply, moreover providing fundamental basis for their application and popularization.

Research of network attacks detection methods

2019 ◽  
pp. 55-59
Author(s):  
P. V. Frolov ◽  
E. V. Vershinin ◽  
S. A. Medvedeva
Keyword(s):  
Comparative Analysis ◽  
Intrusion Detection ◽  
Real Time ◽  
Suitable Method ◽  
Detection Methods ◽  
Network Attacks ◽  
Advantages And Disadvantages ◽  
Initial Analysis ◽  
F Measure

This paper reviews existing methods of network attacks detecting. A brief description of methods, their main features, advantages and disadvantages are given in accordance with the generally accepted classification of detection methods. During the initial analysis evidently inappropriate methods for this study were pointed out. Criteria for estimation of suitable methods for detecting cyberattacks in real time are given (recal, precision, F-measure). Each suitable method was estimated in accordance with the criteria. The comparative analysis of intrusion detection methods was carried out based on the obtained estimates. The most effective methods for solving problems of detecting cyberattacks in real time were chosen. A brief description of further research is given, which is based on the obtained results.

Agrarian receipts as a tool for the structural transformation of financial and credit relations in the agrarian business of the region

2019 ◽  
pp. 40-53
Author(s):  
Yuliia Nehoda
Keyword(s):  
Comparative Analysis ◽  
Retrospective Analysis ◽  
Structural Transformation ◽  
Pilot Project ◽  
Bank Lending ◽  
Economic Benefits ◽  
Advantages And Disadvantages ◽  
New Instrument ◽  
Agricultural Business ◽  
Business Entities

The subject of the research – is a set of organizational-economic relations arising in the process of structural transformation of financial and credit relations in the agricultural business. The purpose of the article is a retrospective analysis of structural transformations of financial and credit relations in the agricultural business, evaluation of the effectiveness and feasibility of the introduction of agricultural receipts as a new instrument of lending to the agricultural business of the regions. Methodology of work – system-structural and comparative analyzes (to determine the effectiveness of the crediting mechanism according to the agricultural receipts of the farmers of the region); monographic (when studying the problems of the functioning of the mechanism of lending to agrarians by agrarian receipts) economic analysis (when carrying out a comparative analysis of the mechanism of classical bank lending to the agrarian business and the mechanism of lending to agrarians according to agrarian receipts); modeling and forecasting (when determining ways to overcome the existing deficiencies in the mechanism of lending to agrarian business entities of the region according to agrarian receipts). The results of the work – a retrospective analysis of the structural transformation of financial and credit relations in the agricultural business was carried out. The mechanism of crediting agrarians according to agrarian receipts and the scale of its distribution in the agrarian business of the region are considered. A comparative analysis of the mechanism of classical bank lending to the agrarian business and the mechanism of lending to agrarians according to agrarian receipts was carried out. In the framework of the pilot project “Agrarian receipts in Ukraine” of the international financial corporation (IFC) in partnership with the Swiss Confederation in Ukraine, the example of the Poltava region defined the effectiveness of the crediting mechanism according to the agrarian receipts of the agrarians of the region. The advantages and disadvantages of the mechanism of crediting the subjects of the agrarian business on agrarian receipts are noted. The ways to overcome the existing shortcomings of the mechanism of crediting the subjects of the agrarian business of the region according to agricultural receipts are determined. Conclusions – according to the results of the conducted research, the effectiveness of the mechanism of lending to the agricultural business of the regions according to agricultural receipts was proved, its advantages and disadvantages were noted, and attention was also focused. Proposed in Art. 7 of Law No. 5479-VI clearly delineate cases and restrictions on the debtor’s reimbursement of expenses incurred by the lender with the acquisition of the right to grow and harvest the pledged crop of agricultural products, which will ensure the principle of equality of parties on economic benefits and distribution of credit risks according to agricultural receipts.

The Imperatives of Beneficiation Law for Botswana’s Diamond Mining Industry and Its Implications for Foreign Investment Protection

2018 ◽  
Vol 33 (2) ◽  
Author(s):  
Femi Oluyeju ◽  
Kuda Tshiamo
Keyword(s):  
Economic Growth ◽  
Foreign Investment ◽  
Value Chain ◽  
Positive Impact ◽  
Mining Industry ◽  
Investment Protection ◽  
Goods And Services ◽  
Advantages And Disadvantages ◽  
Diamond Mining ◽  
Backward And Forward Linkages

This article seeks to interrogate the advantages and disadvantages of beneficiation law for Botswana’s mining industry and its implications for foreign investment protection. Furthermore, it argues that the enactment of beneficiation law could stimulate economic growth and development in Botswana. On a proper analysis of the potential of beneficiation law it seems plain that it may facilitate the integration, of among others, the cutting and polishing segments through the backward and forward linkages in the entire diamond value chain to move Botswana diamond industry a step further as a new and emerging jewellery manufacturing and retail center in order to derive maximum returns from the rough diamond production. Quite clearly, cutting and polishing of diamonds in Botswana is bound to promote employment which in turn will promote demand for goods and services that would have a positive impact on economic growth in Botswana.  The paper concludes that on a balance, the opportunities accruable from the enactment of this law far outweigh the downsides and will not in any way scare investors away as some have perceived it.

Review and classification of false information systems (FIS)

2020 ◽  
pp. 36-39
Author(s):  
M.A. Kobilev ◽  
E.S. Abramov
Keyword(s):  
Information Systems ◽  
Comparative Analysis ◽  
False Information

The article considers false information systems and conducts their comparative analysis, considering the tasks that they perform, which technologies rely on, and what role is played in protecting information when they are used. The goal is to identify relevant false information systems, to formulate criteria in accordance with which classification is carried out. The problems of false information systems are identified, further work in this topic is determined.

ON COMPARATIVE ANALYSIS OF PERFORMANCE OPTIMIZATION METHODS OF MULTI-PUMP UNITS

2020 ◽  
pp. 23-28
Author(s):  
A.I. Glushchenko ◽  
M.Yu. Serov
Keyword(s):  
Energy Efficiency ◽  
Control System ◽  
Comparative Analysis ◽  
Performance Optimization ◽  
Optimization Methods ◽  
Online Optimization ◽  
New Approach ◽  
Advantages And Disadvantages ◽  
Analysis Of Performance

В статье рассматривается вопрос совершенствования системы управления параллельно-работающими насосными агрегатами с целью повышения энергоэффективности их работы. Проведено сравнение и выявление недостатков существующих методов решения рассматриваемой проблемы. Предложена идея нового подхода на базе онлайн оптимизации. The problem under consideration is improvement of the energy efficiency of a control system of parallel-running pump units. Known methods used to solve this problem are considered. Their advantages and disadvantages are shown. Finally, the idea of a new approach, which is based on online optimization, is proposed.

Classification of the factors forming the cost of the web-site

2017 ◽  
Vol 31 (2) ◽  
pp. 82-89
Author(s):  
E. S. Epifanov
Keyword(s):  
Web Site ◽  
Internet Site ◽  
Advantages And Disadvantages ◽  
Major Factors ◽  
The Cost ◽  
The Web

This article presents a classification of major factors that shape the cost of Internet site. Also discusses the limitations in determining the objectives of the web site; advantages and disadvantages of different factors.

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