Archive of Journal
Volume 74, Issue 10, Oct. 2018

SELECTION OF METHODS OF OPTIMIZATION OF INDICATORS OF RELIABILITY OF CARS

Volume 74, Oct 2018
doi: 10.21506/j.ponte.2018.10.3

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Abstract: The main characteristics of the efficiency of the use of mass and serial production machines, as well as many technical products, are their performance and cost, as determined in the specific calculation per production unit. Production cost depends on the cost of production (purchase) and ensuring the serviceable condition, on the expenses rate of operating materials. In this regard, this paper proposes methods for determining the total average resource of the machine, its aggregation, subassembly, parts, spare parts, the total costs of wear of the machine for the full resource, as well as the cost of maintenance and compensation for damage due to wear for a full resource through cycles of exploitation, in which the optimization criterion is the minimum overall average unit cost of production and ensuring the serviceable condition of machinery at constant performance.

Author(s): Saken Pernebekov, Ussen Ussipbayev, Zhenis Sadykov, Kanat Azhibekov, Baidulla Uralov


READING INTERIOR DESIGN PROCESS OVER PATTERN MODEL

Volume 74, Oct 2018
doi: 10.21506/j.ponte.2018.10.6

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Abstract: Every act of design is based on its unique past and process. Implemented merely as an alternative way to understanding the process of interior design, “pattern” assumes a much more effective role in stating the overall impact of the analysis. For, the question ‘which consecutive steps can be followed to reveal the interior design process’ can be answered only through the mental steps the concept of pattern can offer, and the reimposition of each step through an update. In this context, Alexander's model of "pattern" is discussed, leading to a presentation of the mental steps followed through in the interior design process, with reference to the experiences of seasoned designers. The model drawn up specifically for the interior design discipline, on the other hand, provides a clear reading of the process and consecutive steps required to be implemented.

Author(s): Elif Sonmez, Filiz Tavsan


SOCIALLY-ORIENTED MARKET ECONOMY THE BASIS OF DEVELOPMENT OF SOCIAL STATE

Volume 74, Oct 2018
doi: 10.21506/j.ponte.2018.10.5

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Abstract: While implementation of socially-oriented market economy, first of all, improvement of life quality of population and competitive abilities of human capital, as well as regulation of economic development and its stability, use of natural resources and their preservation for future generations are important conditions. The main aim in implementation of the model is provision of the dynamics of the human capital related with ecological, institutional, economic, informative- technological directions and regulated development of ecosystem. Characteristic features of national economic development model of Azerbaijan are the followings: I. In Azerbaijan mixed economy is being formed based on different property and economic forms and an environment is being established for favorable activity of state and private property forms; II. In Azerbaijan, economy is regulated by the state, favorable condition is set for competitivity of products both for domestic and foreign markets; II. Regulation is carried out both on macroeconomic, and microeconomic level; IV. Development peculiarities of socially-oriented economy, traditions of solution of social problems by the state are compatible with German model; V. Environment of free competence is conducted by the state and anti-monopoly measures are implemented; VI. Employment policy and reduction of poverty are integral parts of the social economic policy conducted in Azerbaijan. As above-noted, socially-oriented market economy forming in Azerbaijan reflects traditions of the western countries, as Azerbaijan has joined social policy program of the European Union and here the legal framework of market economy is based on international laws. So, national economic development model of Azerbaijan has social nature. Economic policy carrying social nature, on one hand is based on human factor, on another hand, on the practice of the advanced countries of the world developed by the way of development of market economy. At the same time, innovative development of economy and implementation of modernization strategy are priority issues in national economic development model of Azerbaijan.

Author(s): Mammadova Seadat Davud gizi

FOLLOW-UP ON SOCIAL MEDIA TO MEASURE TOPIC DIFFUSION: ECUADORS ZONE 3 ASSEMBLY MEMBERS CASE

Volume 74, Oct 2018
doi: 10.21506/j.ponte.2018.10.1

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Abstract: This research aims to follow-up on social media channels in order to measure topics from Zone 3 assembly members in Ecuador. The problem identified by means of direct observation is the absence of monitoring and follow-up activity in social networks, as well as the lack of knowledge of digital tools in obtaining indicators. This leads to a low online presence of assembly members. The proposed methodological procedure consists of the following stages: defining objectives and metrics, defining the monitoring period, selecting technological tools, analyzing and presenting results as well as suggestions for improvement. A sample of 14 representatives from the provinces of Zone 3 (Tungurahua, Cotopaxi, Chimborazo and Pastaza) were selected from a national population of 137 elected assembly members. Quantitative and qualitative technological tools were used for measurement, such as: Keyhole, Fanpagekarma, Followerwonk, Metricspot and Nvivo.

Author(s): Patricio Medina-Chicaiza, María Fernanda Iza-Cabay,Carlos Beltrán-Ávalos


IN-VITRO ASSESSMENT OF SURFACE CHARACTERISTICS AND BACTERIAL ADHESION OF METHYL METHACRYLATE FREE DENTURE BASE MATERIALS

Volume 74, Oct 2018
doi: 10.21506/j.ponte.2018.10.2

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Abstract: Background: In order to minimize allergic reactions caused by excessive MMA monomer, hypoallergenic prosthesis base materials that contains diurethan dimethacrilate, polyurethane, polyethylentereftalat and polybuthilentereftalat which have different poymerization alternatives were developed as an alternative to methyl methacrylate (MMA). The aim of this study was to evaluate adhesion of oral streptococci on materials not including MMA, and to examine the influence of surface roughness and pellicle coating on bacterial adhesion. Materials and Methods: 3 different hypoallergenic denture base materials, 1 microwave polymerized poly(methyl methacrylate) (PMMA) and 1 heat polymerized PMMA (QC 20) were assessed. To prepare test specimens (10 x 2 mm), half of the wax patterns were invested in the flask directly in plaster (n=49), while the other half of the patterns were invested against the glass (n=49). For each technique (n=5), the surface roughness of specimens was determined by using a profilometre. Thereafter, the remaining 44 specimens were divided into 2 groups as uncoated and pellicle coated. Adhesion of S. mutans (n=11) and S. sanguinis (n=11) on specimens was assessed by counting bacteria in the images taken by fluorescent microscopy and data were analyzed. SEM images were also used to support study findings. Results: Significant differences were found between materials in terms of surface roughness and the number of adherent bacterial cells (p<0.05). Generally, QC 20 showed the lowest amount of bacterial adhesion in all groups. Pellicle coating reduced the number of adherent bacteria on all resin surfaces (p<0.05). Conclusions: In general, Puran HC, Alldent Sinomer, Polyan and Acron MC showed higher tendency to microbial adhesion when compared to QC 20. Key words: Bacterial adhesion; Hypoallergenic base materials; Surface roughness; Fluorescence microscopy.

Author(s): Sema Murat, Ayhan Gurbuz