Техника и технологии. Рубрика в журнале - Вестник Алматинского технологического университета
Recycling of leather and shoe waste
Статья научная
Waste from the leather and footwear industries is not disposed of at the enterprises, but is taken to landfills, which leads to environmental pollution. Research of waste processing technology in order to reduce their negative impact on the environment is an urgent task. The paper considers the processes of shredding leather and Shoe production waste, technological processes for obtaining secondary raw materials and products from them. For this purpose, an installation has been developed that allows studying the process of grinding waste suitable for further processing in laboratory conditions. Studies were carried out to determine the rational modes of the technological process of grinding waste from these industries. The sequence of processing and the obtained values of the modes are recommended for use in production conditions.
Бесплатно
Research of camel shanks proteinhydrolyzates by electrophoregram
Статья научная
This research aims to study the degree of hydrolysis, determining the nature of protein hydrolyzates, which determine their size and molecular weight by the method of electrophoregram. In this research, a camel pancreas suspension was used to hydrolyze proteins from camel shanks. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) was used to monitor the distribution of proteins and evaluate their molecular weights at different incubation times. Electrophoregram processing using the BioCapt program (Vilber Lourmat, France) determines the nature of the hydrolysis of protein and peptide profiles among hydrolyzates and the hydrolysis time for 8 hours shows the most significant accumulation of low molecular weight compounds with a molecular mass of
Бесплатно
Research of consumer properties of non-woven materials from wastes of wool-processing industries
Статья научная
Disposal of continuously accumulated household and industrial wastes of production and consumption is an acute environmental and economic problem. In this regard, scientific research in the field of waste recycling and analysis of its reuse in production are becoming highly topical. The article examines the consumer properties of needle-punched non-woven materials from waste processing fibers of wool and cotton, as well as to establish the optimal fibrous composition were developed experimental samples of non-woven fabrics with different percentage ratio of fibers. The studied samples of non-woven fabrics were developed by the method of needling of canvases produced from waste of wool and cotton spinning and processing industries.
Бесплатно
Research of fine grinding processes of low-value fish and vegetable raw materials
Статья научная
The article is devoted to the study of fine grinding processes of low-value fish and vegetable raw materials. In the study of fine grinding processes, the equipment was studied using the mechanical method. Equipment for the ME 20513E and HLC-300 brands was selected for shredding valuable fish plant raw materials. The presented research results can be used in the development of pasta technologies using a complex of bio-additives.
Бесплатно
Статья научная
In this paper are presented results of studies for determination of physical and mechanical properties of materials that allows selecting optimal options of fabrics to produce special clothing of oil industry workers. Results of experimental dates are approximated. Equations of mathematical dependence allow forecasting the indicators of physical and mechanical properties of fabrics.
Бесплатно
Research of structural and mechanical properties of national restructured meat products
Статья научная
The article presents the results of a study of the structural and mechanical properties, the dependence of the objective function and humidity of lamb and horse meat on the duration of the mechanical treatment. Changes in water activity and humidity of raw meat, depending on the duration of the mechanical treatment. It has been established that the use of multicomponent brine helps to increase water binding capacity (WBC) and improves the structural and mechanical properties of lamb and horse meat products. Studies have shown that increasing the WBC of meat occurs within 5 days of exposure, and the use of mechanical treatment helps to increase WBC in the first 24 hours.
Бесплатно
Research of the adaptation process of LBM. аcidophilus К-3 vegetable juices
Статья научная
Fermented juice is high effective product for stabilization organism and normalization of metabolism. The process adaptation of probiotic lactic acid microorganism in carrot juice is considered in this research. In process fermentation the most level of acidity was reached in juice with contents 8% of dry substance in carrot juice. The optimum additive in carrot juice was chosen dairy whey in amount 20%. It was shown that the strainsLbm. аcidophilusК-3 and Bifidobacterium bifidum sp in a ratio of 1: 1 the residual content of reducing substances is smallest, and the pH and acidity reaches values in carrot juice 4.45 and 0.38% by weight of malic acid. B. bifidum sp. and Lbm. Аcidophilus К-3 and their metabolic products can inhibit the existence of pathogenic microflora in vegetable juices.
Бесплатно
Research of the modification of felt material for development products of demi-season assortment
Статья научная
The assortment of felt products on the market mainly consists of outerwear and accessories, because the thin felt materials have a shorter exploitativeterm due to the problem of tensile properties and breaking load. It is possible to make a thinner material by strengthening their structure, which in turn will expand the range of women's clothing. This article explores the method of modifying the felt material, and its influence on the structure of the produced fabric. Analysis of the research results confirms that modification of the felt material doubles its consumer properties.
Бесплатно
Stress and deformation of polymeric parts at torsion
Статья научная
The article is devoted to the mathematical modeling of the process of torsion of polymer parts. The purpose of the study is to determine the stresses and strains that occur during the operation of parts under the action of torque. In this work, analytical expressions were obtained that establish the dependence of the stresses arising in a polymeric part and its angle of twist on the magnitude of the operational loads. The results of the study can be used in the design of polymer parts of shoes, as well as in the calculation of various plastic parts that work in torsion.
Бесплатно
Study of design of traditional shoulder clothes of peoples of Central Asia and Kazakhstan
Статья научная
In the article, constructive solutions of traditional shoulder clothes of the peoples of Central Asia and Kazakhstan is considered.It is revealed that the principle of constructing the design of shapan and shirt is common for the peoples of Central Asia and Kazakhstan, and the number and configuration of the details of the cut allows them to be presented as a set of modular elements. The dimensions of the module were influenced by the overall dimensions of the human body and the width of the fabriс.The data for building a unit of the cut module will improve the quality and shorten the process of designing traditional and stylized clothes.
Бесплатно
Study of functional properties of pectin-containing koumiss
Статья научная
The article describes a method for obtaining traditional koumiss and provides a scheme for preparing pectin-containing koumiss. It was found that due to the addition of liquid Apple pectin in the studied form of koumiss, there is a significant excess of vitamin C and protein content in comparison with traditional koumiss. Preclinical experiments were conducted on laboratory white rats with cadmium intoxication in order to identify the detoxification properties and safety of the obtained pectin-containing koumiss. It is shown that pectin containing koumiss had a positive effect on blood parameters and contributed to improving the general condition of the studied animals, which allows using this type of koumiss as a functional therapeutic and prophylactic drug for poisoned with heavy metals living organisms.
Бесплатно
Study of noise protection properties of materials and clothes packages
Статья научная
The work is devoted to the study of the noise-protective ability of textile materials used for special clothing. An installation has been developed that allows measuring the noise level passing through the materials. Depending on the number of layers of materials, comparative evaluations of noise-protective capacity are determined. The research method allows to reasonably choose materials of special clothes for those working in noise-polluted conditions.
Бесплатно
Study of storage ability of curd dessert with addition of vegetable raw materials
Статья научная
The paper presents data on study of storage of curd dessert. The composition of product was varied to improve organoleptic and physico-chemical parameters and increase storage capacity. The process of product production involves mixing curd product with ingredients (hawthorn, apricot, carrot juice). Studied organoleptic characteristics of finished products during refrigerated storage.However, on ninth day taste deteriorated, acidity increased. Studies of microbiological indicators are presented. As result of storage on the ninth day, presence of mold was detected.The results of analyzes show that shelf life of new dessert is seven days at (4±2)°C.
Бесплатно
Study of the effect of washing materials of workwear
Статья научная
В статье разработаны требования к спецодежде и методы решения, обусловленные необходимостью обеспечения защиты рабочих в колбасном цехе от факторов агрессивной среды, травматизма и профессиональных заболеваний. В результате исследования влияния стирки на поведение текстильных материалов установлено, что воздействие комплекса факторов, моющих средств на степень удаления загрязнений образцов ткани наибольшьший моющий эффект оказывает композиция моющих средств «мыло хозяйсвенное и порошок Миф». Исследование механических свойств образцов ткани, используемых для изготовления спецодежды, позволило выявить наиболее рациональную ткань (арт.18452), которая обеспечивает разработанной спецодежде высокие эксплуатационные свойства.
Бесплатно
Статья научная
Scientific novelty of work is presented in the form of definition of the main options of measurement of ways of leakage of current and air gaps at research of safety of electric toys. Practical value is represented by the offered optimum scheme of measurement. Safety requirements belong to electric characteristics of toys with a rated voltage of food up to 24B. Results of work can be usedwhen carrying out standardization and certification of electric toys.
Бесплатно
The calculation of technological effort for impact perforation and parts and products marking
Статья научная
The article is devoted to the calculation of technological effort for impact perforation and parts and products marking in mechanical engineering and light industry, the development of devise with two-coordinate movement system. The analytical expressions that bind together the technological effort, properties of the material, instrument parameters and the implementation speed of the operation are obtained during this research. The results of the study can be used to design the device or calculate the technological effort, necessary for the implementation of mentioned operations.
Бесплатно
The development of new method for producing dry kumis powder
Статья научная
Kumis is a fermented dairy product traditionally made from mare's milk. Kumis is widely known as medical and highly nourishing beverage received during lactic and ethanol fermentation of mare's milk. But the kumis is still a seasonal product, in winter the mares are not milked. Lactation of mares usually lasts 5-7 months. At the same time it can not be stored for a long period, during 3-4 days sours and becomes unfit for consumption. Therefore, one of the major problems in kumis production is obtaining kumis with extended shelf life. The objects of study are mare's milk and kumis.
Бесплатно
The influence of complex supplements doses on the rheological properties of pasta dough
Статья научная
The article is devoted to the study of the effect of doses of the bioadditive complex on the rheological properties of pasta dough. When studying the rheological properties of macaroni dough, the equipment of the Alveograph company Chopin Technologies was used. It was established that the addition of a complex of bio-additives leads to an increase in the elastic force of the dough with a slight decrease in its extensibility. At the same time, the specific work of deformation increases (up to 172-255 kJ). The presented research results can be used in the development of pasta technologies using a complex of bioadditives.
Бесплатно
Статья научная
Статистическая обработка экспериментальных исследований позволила научно обосновать и математически описать оптимизацию параметров технологического процесса при взаимном влиянии температуры и продолжительности проращивания на изменение биологической и пищевой ценности зерна кукурузы. Результаты исследований показали, что при температуре проращивания 240С антиоксидантная активность показывает наибольший результат, чем при 18 и 300С. При температуре проращивания 240С все приведенные показатели на 5 сутки достигают максимальной отметки. Из исследованных гибридов при температуре 240С на пятые сутки проращивания в кукурузе «Арман 689» повысилось ССА в 3,1 раза (на 68 %) по сравнению с контролем. При тех же условиях, в гибриде «Туран 480 СВ» ССА повысилось в 3,2 раза (на 68,7 %), в гибриде «Турген 5/87» - 4,2 раза (на 76 %). По сравнению с гибридами «Туран 480 СВ», «Турген 5/87» в гибриде «Арман 689» ССА выше в 1,3 и 1,03 раза, соответственно в 22,8 и 2,9 %. На основе полученных данных построена математическая модель, позволяющая оптимизировать режимы проращивания кукурузных гибридов.
Бесплатно
Статья научная
His article shows the results of the influence of contamination of flour by bacteria spores on process of bread molding and the establishment of maximum permissible level of contamination for the production of baked goods in packaged form, as well as infection of bread made from this flour with potato illness. Was established the level of contamination of flour with bacteria spores for making bread with extended shelf life -no more 101cfu/g.
Бесплатно
