Vestnik of Vitebsk State Technological University

14-20

Authors: Zimina Alena, Kogan Alexander

The paper presents an analysis of the main regularities of the process of cutting textile waste as elastic-plastic materials. It is established that by varying the technological parameters of the cutting tool: the number of blades, the diameter of the rotor mandrel, the thickness of the rotor body, the height and length of the knives, the angle of their inclination, and the size of the cells of the screening screen, the pulp achieves a uniform consistency and the particle size is reduced to the required value. Calculated analytical expressions and mathematical models are obtained to determine the parameters of grinding elastoplastic materials from the position of particle size in the total fiber mass.

29-36

Authors: Kirillov Aleksey, Sakevich Valerij

The subject of this research is a benchmark analysis of methods for single-item production of dials for electrical measuring instruments. The research was held with the aim to improve the quality of produced dials and also to enhance efficiency of printing the information signs and labels onto the dial. The research uses mathematical tool of digital image processing and the position detection of instrument’s pointer indicator in real time. The laser engraving method is used to improve the production quality of dials. The structure of hardware and software complex is developed as well as software for operation control. Hardware and software complex for production of dials is developed and introduced into manufacturing process.

45-52

Authors: Pyatov Vladislav, Holubeu Aliaksei, Shyrayeu Pavel

The subject of the study is calculating technique and design technique for geometric parameters of forming tool and screw of the extruder for plasticized compressible materials processing. The developed technique is based on a theoretical model linking the rheological and tribotechnical properties of material with geometric parameters of screw channel and forming tool of extruder. Examples of performing this kind of calculations and brief description of developed software application are given. The developed technique and software allows designing screw-type extruders for plasticized materials with optimal geometric parameters of forming tool and power screw, and allows reducing the time for 3D-modelling and drafting. The results of the work can be used in the design of specialized equipment for screw extrusion of composite materials.

60-67

Authors: Skobova Natallia

At the knitting enterprises of the Republic of Belarus, the assortment of manufactured products is constantly updated, new types of raw materials are being searched that satisfy the producer in terms of quality and price. The work was done to verify the possibility of using of a viscose air-jet yarn (Vortex®) of a linear density of 20 tex in knitting production. The complex analysis of the properties of the yarn showed its compliance with the world analogs, the quality index according to Uster Statistics USP is 6–25 %. The yarn is characterized by higher strength and elastic properties compared to the rotor spinning yarn, which is a closely related kind. Significant difference in the price factor is not observed. According to the results of the research, Vortex® yarn can be recommended for knitting enterprises to expand the range of products.

78-85

Authors: Charkovskij Alexander, Goncharov Vadim

The purpose of the work is to study the features of the structure of knitwear produced using multifilament yarns and to determine the feasibility of using these yarns in the production of socks. Experimental samples of products are made. The peculiarities of the structure of knitwear of the plaited weaves made of multifilament polyester yarns of the company "SvetlogorskKhimvolokno" are examined. The expediency of using multifilament polyester yarns for fabrication of socks with a paid flip weave has been established. The results of the work are recommended for use in the development of an assortment of socks.

95-100

Authors: Kupchik Lidija, Denisovich Vasiliy, Salavor Oksana, Nychyk Oksana

An improved method of mercerizing plant wastes (with an example of rice husk). The degree of swelling in water, static ion-exchange capacity and sorption activity concerning toxic metals Cd(II), Pb(II) and Sr(II) ions are studied for untreated and mercerized rice husk. It was shown that the degree of swelling of the material and its sorption properties increase along with the increase of alkali concentration and the ratio of solid-liquid phase.

108-114

Authors: Matsukevich Irina, Shevchuk Viacheslau, Polhovskya Olga, Matrunchik Julia, Kaniok Denis, Vashook Vladimir

Magnesium oxide is used as adsorbent, catalyst and material for decontamination of chemicals and toxic substances. This is important for water and gas purification. In this work mesoporous magnesium oxide was prepared from bischofite water solutions by easy and cheap wet chemistry method. It is established that the nanostructured mesoporous powder of magnesium oxide is an effective sorbent of heavy metal ions in aqueous media. The possibility of the increasing adsorption capacity of MgO by chemical activation with magnesium chloride has been studied. It was revealed that in the presence of chloride ions the adsorption capacity of MgO powder increases by 20–30 % with respect to the heavy metal ions. That means magnesium oxide can be considered as a practically significant material for purification of bischofite from heavy metal impurities.

123-131

Authors: Gruznevitch Kate, Shchelkunova Zlata

The article presents the results of the study of new foreign approaches to the evaluation of the efficiency of the commercial organization, namely: evolution, essence, key indicators, advantages and disadvantages. The problem of their use under the conditions of the economy of the Republic of Belarus is determined. The author's methodology for a comprehensive assessment of efficiency based on the compilation of new approaches was developed, taking into account the adaptation to the practice of domestic organizations, the evaluation stages were examined in detail, and approbation was carried out using the example of an industrial organization in Vitebsk, which enabled to determine efficiency in terms of a targeted approach and depart from the traditional cost- respiratory approach. This gives the organization greater flexibility for its management, the ability to react more quickly to changes in the external environment and to take into account the specific features of its activities.

140-151

Authors: Kasayeva Tamara, Tsynkovich Oksana

The subject of study is the relationship of innovation and sustainable development of a commercial organization as a whole and in individual aspects of these processes. The aim is to estimate the degree of innovation impact on the sustainable development of the organization, including its economic, environmental and social components. Object of research is industrial organizations of Vitebsk. The working hypothesis of the study: innovative activity of the commercial organization and its elements: innovative potential, innovative activity and effectiveness of innovation have different effects on some aspects of sustainable development of the organization. A system of indicators is developed to describe the interrelated processes: the innovation activities of the organization and its sustainable development. For quantitative characteristics of the studied processes authors designed a matrix of the relationship aspects of sustainable development and innovation organizations. The results obtained allowed to establish the re lationship existing between the studied phenomena, both as a whole and in the context of their individual components. As a result of studies the following conclusions were obtained. Firstly, innovative potential has the most powerful influence on the sustainable development of industrial organization. Secondly, innovation has a significant impact on the economic and environmental development of objects of research and to a lesser extent on their social development. Consequently, the social component of innovation processes needs focusing on to ensure a balanced and sustainable development of industrial organizations of Vitebsk.

162-171

Authors: Prokhorenkova Irina

The article presents theoretical analysis of sport marketing definitions and the main components of modern sport marketing. The need to develop universal marketing model was proved. Sport marketing model was developed and its main components were described. In the model sport marketing was divided in two main parts commercial and non-commercial. Effective marketing concepts regarding the developed model were described. Within the commercial marketing such components as sport event, sponsorship, professional athletes, and a sport building were analyzed. The market saturation coefficient of Minsk city fitness clubs was calculated on the basis of approved technique. The author offered and proved the technique of the coefficient of the square and range factor use for calculation of population sports buildings ensuring. Among sport buildings operation of fitness clubs was thoroughly analyzed. Regarding non-commercial part of marketing practical survey of main marketing components such as the most or least age segment, main reasons of going in for fitness and it disclaimer was offered and performed. The amount of Vitebsk city residents engaged in active way of life was estimated. In the article it was logically proved that sport marketing is a wide and actual theme affecting different areas of life of modern people and society in general.