scholarly journals Statistical Research and Efficiency in the Process of Direct-Flow Ginning

2020 ◽  
Vol 9 (3) ◽  
pp. 3812-3816
Keyword(s):  
Raw Material ◽  
Practical Significance ◽  
Drive Power ◽  
Statistical Research ◽  
Working Chamber ◽  
Research Results ◽  
High Productivity ◽  
Engineering And Technology ◽  
Scientific Significance ◽  
Working Bodies

The present time more attention is allocated with the purpose about an opportunity manufacture qualitative products to improve technologies. In clause, the improvement of engineering and technology for allocation fibrous raw material is investigated. The scientific significance of the research results lies in obtaining dynamic and mathematical models of motion, numerically solving the problems of determining the laws of motion and parameter dependencies, the modes of motion of the recommended working bodies (saw cylinder, working chamber, grate, raw roller accelerator, chain gear for saw cylinder drive, bearing support) saw gin. The practical significance of the research results is to improve the saw gin, which allows obtaining high-quality cotton fiber with high productivity due to the intensification of the ginning process, an increase in the working life, as well as a decrease in the required drive power. The technology and design of a heated gin working chamber for ginning raw cotton of high humidity has been developed.

scholarly journals RESEARCH OF CENTRIFUGAL GRINDER GRANTS

2021 ◽  
pp. 13-26
Author(s):  
Ivan Sevostyanov ◽  
Oleksandr Melnik ◽  
Sergiy Kraevsky ◽  
Anatoliy Gorbachenko
Keyword(s):  
Raw Materials ◽  
Electrical Power ◽  
Raw Material ◽  
Total Efficiency ◽  
Working Chamber ◽  
High Productivity ◽  
Cost Of Energy ◽  
Internal Surfaces ◽  
Effective Efficiency ◽  
Moderate Cost

The processes of grinding dry and wet dispersed materials are common in alcohol, beer, sugar, meat, bakery, feed, chemical and a number of other industries, as well as in construction. Relevant for these processes, especially recently, in connection with the rise in the cost of energy resources, is the problem of reducing energy costs during their implementation, subject to high productivity, sufficient degree and uniformity of grinding and moderate cost of equipment for the process. The article proposes scientifically substantiated dependencies for calculating the minimum required electrical power of an experimental industrial grinder, which is considered as a replacement for hammer crushers, when used to grind wet grain of wheat, rye or corn and ensure the specified performance, taking into account the daily volume of raw materials processed at the enterprise. as well as the permissible degree of its refinement. In particular, equations were obtained to determine the power consumption for bringing the raw material in the grinder into rotary motion, for the friction between the grains of the raw material and the grinder discs, as well as the internal surfaces of its working chamber, for the friction between the grains themselves, the power required for grinding. The electric power of the grinder, the effective efficiency (41%) and the total efficiency (14%), by which it is superior to hammer crushers, have been calculated. In this work, based on the theory of contactless hydraulic seals, the analysis of possible trajectories of the particles of the processed raw materials in the working chamber of the grinder (grains of wheat, rye or corn moistened with water) is carried out, the forces acting on the particles of the raw material in the process of their movement from the axis of the grinder to the periphery of the working chamber are determined, as well as the analysis of the interaction of particles during their grinding, based on the theoretical provisions of the mechanics of quasi-solid and quasi-liquid bodies.

scholarly journals Evaluation of Competitiveness of Brands of Local Sewing and Knitting Enterprises

2021 ◽  
Vol 11 (2) ◽  
pp. 716-739
Author(s):  
Akramov Tohir Abdirahmonovich ◽  
Ziyodulla Hakimov ◽  
Bobir Tursunov ◽  
Alisher Oqboyev
Keyword(s):  
Brand Management ◽  
Innovation Management ◽  
Practical Significance ◽  
Research Results ◽  
Marketing Innovation ◽  
Global Brands ◽  
Brand Competitiveness ◽  
Branding Strategies ◽  
Scientific Significance ◽  
Practical Recommendations

The purpose of the study is to develop scientific proposals and practical recommendations for the use of branding strategies in the management of the competitiveness of garment enterprises. The scientific significance of the research results was determined by the fact that it can be used to identify specific aspects of brand competitiveness management and enterprise competitiveness, brand management in enterprises, development of branding strategies and the formation of special strategic programs and program goals to transform the national garment brand into global brands. The practical significance of the research results is that the developed scientific proposals and practical recommendations will help entrepreneurs operating in the country to develop their own brand in order to be competitive, to evaluate it in market conditions. The results of the study can be explained by the fact that they can be used in the preparation of textbooks and manuals on the disciplines "Brand Management", "Management", "Fundamentals of Management and Marketing", "Innovation Management".

Investigation of the effect of the constructive and mode parametres of a combined rocker on the power of the drive of the working bodies

2019 ◽  
pp. 82-85
Author(s):  
Pavel Ivanovich Pavlov ◽  
Viktor Vladislavovich Korsak ◽  
Aleksandr Olegovich Vezirov ◽  
Dmitriy Vadimovich Mukhin
Keyword(s):  
Operating Parameters ◽  
Regression Equations ◽  
Drive Power ◽  
Minimum Value ◽  
Working Bodies

The regression equations and graphical dependencies are obtained, which describe the influence of design and operating parameters on the drive power of the working bodies. The value of the design and operating parameters in which the power required to drive the working bodies, will have a minimum value  are experimentally determined.

scholarly journals Clusters as an innovative organizational and economic form of efficient agricultural production in the system of sustainable development

Ekonomika APK ◽  
2020 ◽  
Vol 311 (9) ◽  
pp. 86-94
Author(s):  
Yurii Kernasiuk
Keyword(s):  
Sustainable Development ◽  
Agricultural Production ◽  
Cluster Model ◽  
Agricultural Development ◽  
Agricultural Sector ◽  
Scientific Basis ◽  
Practical Significance ◽  
Development Economic ◽  
Industrial Complex ◽  
Research Results

The purpose of the article is to highlight the conceptual understanding of the cluster as an innovative organizational and economic form of production in the system of sustainable development on the example of the agricultural sector and substantiate the scientific basis for ensuring its implementation at the regional level. Research methods. When carrying out the research, a set of general scientific methods and techniques was used; monographic - in the study of domestic and foreign publications and the above-mentioned problems; a systematic approach based on the principles of systems analysis and synthesis - to substantiate the relationship between sustainable development, the efficiency of agricultural production and the cluster model; abstract-logical - for the theoretical generalization of research results and determination of measures to ensure the implementation of the cluster model of agricultural development; economic analysis - to study the efficiency of agricultural production. Research results. The essence of the cluster in modern economic theory in the context of the concept of sustainable development has been studied and analyzed. Globalization, climate change and the aggravation of socio-economic and environmental problems in many countries of the world necessitate the search for new models of economic development. It has been established that one of the most optimal organizational and economic forms of effective agricultural production in the system of sustainable development is clusters. On the example of the Kirovograd region, a scientifically grounded regional model of the development of agro-clusters in the agro-industrial complex. Scientific novelty. Based on the synthesis of scientific theories of cluster and sustainable development, further study of theoretical and methodological approaches to the definition of the essence of clusters as a promising organizational and economic form of effective agricultural production in the system of sustainable development was obtained. Practical significance. The research results will find practical use in substantiating regional strategies for the development of agro-industrial production. They can be used in educational and educational programs, when providing consulting services for the creation of projects of agricultural clusters and in further scientific research.

scholarly journals POTENTIALITY OF THE BUGOJNO COAL BASIN, BOSNIA AND HERZEGOVINA

2021 ◽  
Vol 1 (24) ◽  
Author(s):  
Dževad Forčaković ◽  
Rejhana Dervišević
Keyword(s):  
Raw Material ◽  
Northwestern Part ◽  
Material Base ◽  
Coal Basin ◽  
Surface Distribution ◽  
Research Results ◽  
Geological Characteristics ◽  
Quantitative Characteristics

This paper presents research results of the Bugojno coal basin, which contains very significant, but still insufficiently explored lignite reserves. Based on the determined borders of surface distribution and the research results in the northwestern part of the Bugojno coal basin, proved are four coal layers with reserves of over one billion tons of coal. Discussed are geological characteristics of coal layers, their qualitative-quantitative characteristics, spatial potential of deposit and classification of coal layers. Considering the raw material potential and the possibility of expanding the existing raw material base, the Bugojno coal basin has particular importance for the long-term development of lignite exploitation and its use for thermal energy purposes.

scholarly journals THE FORMATION OF THE RANGE CONCEPT THE FUNCTIONAL BREAD OF MASS RANGE

2021 ◽  
pp. 64-79
Author(s):  
Irina Pushmina ◽  
Olga Kolman ◽  
Irina Koyupchenko ◽  
Mihail Kudryavtsev
Keyword(s):  
Species Diversity ◽  
Inductively Coupled Plasma ◽  
Raw Materials ◽  
Biologically Active ◽  
Raw Material ◽  
Combinatorial Analysis ◽  
Wild Plants ◽  
Statistical Research ◽  
Functional Types ◽  
Functional Bread

Determination of the directions of formation of the contemporary level of quality and assortment concept of the species diversity of functional bread of mass assortment with the use of wild berry plants Ericaceae for health improving nutrition. The materials were questionnaires of a survey of potential consumers of functional bread of the city of Krasnoyarsk, wild berry plants of the Heather family (Ericaceae): fruits of cranberry (Vaccinium oxycoccos), of cowberry (Vaccinium vitis-idaea), of bilberry (Vaccinium myrtillus), of blueberry (Vaccinium uliginosum) and powders from them. The method of isolation of the average sample according to GOST 24.027.0-80 was used in the work. The content of toxic elements in berries was determined according to GOST 26927-86, GOST 26930-86, GOST 30178-96 using an atomic emission spectrometer with inductively coupled plasma-iCAP 6500. Generally accepted theoretical and statistical research methods, combinatorial analysis, and data processing using standard mathematical programs were used in the work. Study of the consumer survey, literature data of the chemical composition of berries of wild plants Ericaceae, data on the possibility of procurement of raw materials on the territory of Krasnoyarsk region, investigation of safety performance of the raw material and powders out of him for compliance with the requirements of TR CU 021/2011 and 027/2012 indicate the possibility of their use in the composition of functional bread as a source of biologically active compounds with a variety of positive physiological properties. The multivariance of the development of the range of functional types of bread with additives from Ericaceae berries is confirmed by the data of combinatorial analysis. As a result, an assortment concept of the species diversity of functional bread of a mass assortment of contemporary quality with additives from wild berry plants Ericaceae for improving nutrition was formed. Researches is promising in the formation of the range and actual quality of functional types of bread of mass assortment using local wild-growing raw materials, the advantage of which is naturalness, the content of functional ingredients, and contribute to the development of the range and technologies of healthy food products.

scholarly journals Evaluation of microbiological risks in cream as a raw material for buttermaking

Food systems ◽  
2022 ◽  
Vol 4 (4) ◽  
pp. 259-268
Author(s):  
G. M. Sviridenko ◽  
M. B. Zakharova ◽  
N. V. Ivanova
Keyword(s):  
Storage Capacity ◽  
Storage Temperature ◽  
Titratable Acidity ◽  
Raw Material ◽  
Coliform Bacteria ◽  
Bacterial Number ◽  
Research Results ◽  
Anaerobic Microorganisms ◽  
Organoleptic Characteristics ◽  
And Storage

The article presents the research results of studying the influence of various groups of microorganisms — coliform bacteria, lactic acid microorganisms, yeast, and spore bacteria — on the quality and storage capacity of cream used as a raw material for buttermaking. The objects of study were the following: cream as a raw material before and after pasteurization, as well as pasteurized cream seeded with testing cultures of various types of spoilage microorganisms. The samples were stored at temperature conditions of 30 ± 1 °C, 10 ± 1 °C, and 4 ± 2 °C. To evaluate the quality and storage capacity of cream used as a raw material, its microbiological and physicochemical indicators were determined by standardized methods: bacterial number, titratable acidity, indicators of oxidative spoilage of the fat phase. Organoleptic characteristics were evaluated in terms of taste, consistency and appearance. Research results have shown that the greatest microbiological risks during storage of cream used as a raw material are associated with lactococci, coliform bacteria and yeast. Microbiological risks caused by seeding of cream with thermophilic streptococcus, spore bacteria of the genus Bacillus and spore anaerobic microorganisms of the genus Clostridium are less significant, which is associated with the lack of development and metabolism of these groups of microorganisms at storage temperatures of 10 ± 1 °C and 4 ± 2 °C. At the same time, the reason for the rejection of cream contaminated with these testing cultures, at a storage temperature of 4 ± 2 °C, is primarily a decrease in organoleptic indicators, and at a temperature of 10 ± 1 °C — an excess in bacterial number.

Training of future labor teachers and technologies to formulate key competencies among their students

2021 ◽  
Vol 7 (3A) ◽  
pp. 385-393
Author(s):  
Oleksii Debre ◽  
Nadiia Vakulenko ◽  
Anastasiia Savchenko ◽  
Larysa Lysenko ◽  
Marianna Kondor ◽  
...  
Keyword(s):  
Technology Development ◽  
The State ◽  
Professional Competencies ◽  
Practical Significance ◽  
Active Listening ◽  
Listening Skills ◽  
Engineering And Technology ◽  
Labor Training ◽  
Key Competencies ◽  
Definition Of

The relevance of the study of the relationship between professional competencies of the future teacher of technology and the formation of students' key subject competencies. The study aims to determine the system of preparation of future teachers of labor education and technology. A sociological survey among 700 students of specialty 014.10 Secondary education (Labor training and technology) based on Poltava V.G. Korolenko National Pedagogical University (Ukraine). The correlation of the subject competencies defined in the standard with the professional competencies of a teacher was determined: fluency in the state language - generalization of previously learned material, ability to communicate in the native (with a difference from the state) and foreign languages - consolidation of learned material, mathematical competence - development of the ability to self-learn, competence in natural sciences, engineering, and technology - development of active listening skills, innovation - storage of large amounts of information. The practical significance of the study was the provision of recommendations on the model of formation of subject student competence through the definition of its basic principles.

Study of a Two-section Mixer for the Preparation of Balanced Mixtures on Cattle Farms

2020 ◽  
pp. 107-113
Author(s):  
Ruslan Kisilyov ◽  
◽  
Vasil Khmelevsky ◽  
Petro Luzan ◽  
Iryna Sysolina ◽  
...  
Keyword(s):  
Mutual Influence ◽  
Full Range ◽  
High Energy ◽  
Drive Power ◽  
Feed Processing ◽  
Processing Technologies ◽  
Basic Parameters ◽  
Specific Material ◽  
Working Bodies ◽  
Quality Process

Improving of livestock industry efficiency significantly depends on quality of feed preparation, as they are in cost structure of products are 30-60% of costs. Advanced technologies that allow to fully realize genetic potential of animals, due to the lack of necessary technical support have not become widespread. The experience of using intensive full-system technologies for livestock production shows that, along with reliable and balanced provision of farms with high quality feeds, traditional feeding systems are being improved, which are aimed at the development of economically efficient mechanized feed processing technologies and the preparation of full-range and balanced feed mixtures. Existing designs of feed mixers for cattle do not fully meet the zootechnical requirements for the preparation of multicomponent balanced complete feed mixtures, have high energy costs and high specific material consumption. Therefore, research aimed at developing working bodies for feed mixers, which will ensure the creation of a highly efficient feed base at low energy and material costs are of economic importance and is an urgent scientific task. In the article on the basis of the conducted researches the basic constructive-technological scheme of the effective single-shaft two-section mixer for realization of process of preparation of balanced mixes for cattle executed in the form of the horizontally located cylindrical case with the combined mixer consisting of section of screw tapes and flat blades (left and right) direction of inclination, the working surface of which is located at an angle of 45… 500 to the axis of the shaft and is equipped with radial fingers. The purpose of experimental research was to establish identification of developed mathematical models and adequacy of research results of proposed feed mixer and determine impact of basic parameters and modes of its operation on quality process. Аchieve this goal, mutual influence of simultaneous changes in speed of agitator shaft, width of flat blade angle of blade to axis of agitator shaft and duration of feed mixing on quality process: homogeneity of mixture and drive power of mixer shaft. Theoretical studies of the process of preparation of a balanced complete ration mixture confirmed the advantage of the developed design of the combined two-section mixer and increased the quality index (homogeneity of the mixture) to 98%

scholarly journals Hydraulic Fracture Extending into Network in Shale: Reviewing Influence Factors and Their Mechanism

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Lan Ren ◽  
Jinzhou Zhao ◽  
Yongquan Hu
Keyword(s):  
Hydraulic Fracture ◽  
Influence Factors ◽  
Horizontal Stress ◽  
Practical Significance ◽  
Propagation Mechanism ◽  
Fluid Viscosity ◽  
Essential Difference ◽  
Research Results ◽  
Network Propagation ◽  
Shale Reservoir

Hydraulic fracture in shale reservoir presents complex network propagation, which has essential difference with traditional plane biwing fracture at forming mechanism. Based on the research results of experiments, field fracturing practice, theory analysis, and numerical simulation, the influence factors and their mechanism of hydraulic fracture extending into network in shale have been systematically analyzed and discussed. Research results show that the fracture propagation in shale reservoir is influenced by the geological and the engineering factors, which includes rock mineral composition, rock mechanical properties, horizontal stress field, natural fractures, treating net pressure, fracturing fluid viscosity, and fracturing scale. This study has important theoretical value and practical significance to understand fracture network propagation mechanism in shale reservoir and contributes to improving the science and efficiency of shale reservoir fracturing design.

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