Басты бет - Мұрағат - Механика және технологиялар - Жаңа номер - Механика және технологиялар - Механика және технологиялар 2023-2
https://doi.org/10.55956/OGPT5279
Аннотация. В статье рассмотрен один из важнейших инструментов выхода на рынок народных товаров ассортиментной матрицы предприятия. На примере конкретного швейного предприятия, рассмотрен процесс создания ассортиментной матрицы в виде капсул.
Ключевые слова: ассортиментная матрица, капсула, базовый гардероб, целевая аудитория, стиль casual, джинсовая мода, 3d примерка.
Умралиева, Б.И. Современные подходы к формированию конкурентоспособной ассортиментной матрицы для швейного предприятия [Текст] / Б.И. Умралиева, Ж.Б. Байжанова // Механика и технологии / Научный журнал. – 2023. – №2(80). – С.117- 124. https://doi.org/10.55956/OGPT5279
https://doi.org/10.55956/AVCD9931
Abstract. In this research work, we describe the synthesis of activated carbon adsorbents obtained from agricultural residues and their physicochemical properties. The resulting adsorbents are used to remove heavy metal ions contained in water. Currently, activated carbon is used in water purification, air and gas purification, as well as in many production facilities. Activated carbon obtained for removing heavy metal ions from water was made from cotton, apricot, buckwheat and pumpkin residues.
Keywords: adsorbent, activated carbon, heavy metal ions.
Serikbayeva A.M., Ushkempir A.S., Satkozhaeva E. B., Toktibayeva K.R. Purification of heavy metals contained in water with activated carbon and characterization of physicochemical properties // Mechanics and Technology / Scientific journal. – 2023. – No.2(80). – P.142-151. https://doi.org/10.55956/AVCD9931
https://doi.org/10.55956/AIOC3232
Abstract. This study aims to investigate the application of multi-core shell nanoparticles in heterogeneous Fenton processes for efficient removal of specific nitrophenols (2 and 4-nitrophenol) from contaminated wastewater. The synthesis of superparamagnetic magnetite (Fe3O4) was achieved through solution combustion synthesis (SCS) using a citric acid and iron nitrate solution. The mFe3O4@C catalyst was obtained via an adapted Stöber procedure. The material was characterized to identify specific chemical compositions related to the formation of the multi-core shell desired architecture. The carboncoated catalyst exhibited superior performance compared to the bare core catalyst, leading to notable increases in the removal of 2-NP and 4-NP. Moreover, the decomposition of H2O2 was significantly enhanced, indicating the system's potential in efficiently breaking down hazardous compounds. The findings of this study highlight the tremendous potential of the system as a highly effective and viable alternative for the efficient cleansing of contaminated streams polluted with 2-nitrophenol and 4nitrophenol.
Keywords: multi-core shell, nanoparticles, cwpo.
Silva Adriano S., Diaz de Tuesta Jose L., Gomes Helder T. Мulti-core shell nanoparticles for efficient removal of nitrophenols from contaminated streams // Mechanics and Technology / Scientific journal. – 2023. – No.2(80). – P.133-141. https://doi.org/10.55956/AIOC3232
https://doi.org/10.55956/YBQL6527
Аннотация. В работе описан синтез феррита магния (MgFe2O4) золь-гель методом, структура изучена методом рентгенодифрактометрического анализа (РФА), морфология поверхности исследовано с помощью сканирующей электронной микроскопии (СЭМ).
Ключевые слова: магний феррит, шпинель.
Сугурбекова, Г. Синтез и физико-химические свойства шпинельных MgFe2O4 [Текст] / Г. Сугурбекова, Р. Кудайбергенова, А. Керимбек, А. Жеткергенова // Механика и технологии / Научный журнал. – 2023. – №2(80). – С.125-132. https://doi.org/10.55956/YBQL6527
https://doi.org/10.55956/QXAI2073
Abstract. The paper presents new ways of pattern formation in the development of plush knitwear on two-contour machines.The purpose of the research work is to improve the technology for the production of knitted fabrics. As a result of the experimental work, the technological capabilities of the modern LIBRA 3.130 flat knitting machine were studied and new types of combined knitwear based on plush weave were obtained. It has been found that air permeability coefficients can be reduced by up to 30% (46.3-66.9 cm3 /cm2 ∙sec) for combined plush knitwear by reducing the length of the thread in the loop. Based on the analysis of the parameters of the produced fabrics of plush knitwear, it was found that a decrease in the surface density of plush knitwear can be achieved in various ways. The most effective are the ways in which the decrease in the surface density of knitwear is achieved by changing the base weave and combining weaves. The use of these methods makes it possible to reduce the surface density of knitwear by 1.5-2 times, and the bulk density by 15-20% compared to full plush. At the same time, knitwear retains its marketable appearance and high quality indicators.
Keywords: knitted fabrics, structure, combined interlooping, plush knitwear, volume density.
Rakhmanova Zh.S., Sarybayeva E.E. The method of obtaining patterned plush knitwear // Mechanics and Technology / Scientific journal. – 2023. – No.2(80). – P.108-116. https://doi.org/10.55956/QXAI2073
https://doi.org/10.55956/QXAQ3693
Аннотация. В статье рассмотрены основные требования к специальной одежде монтажников с целью улучшения гигиенических и эргономических требований к ним. С учетом выявленных недостатков спецодежды разработаны два комплекта спецодежды для строителей.
Ключевые слова: спецодежда для строителей, монтажники, эргономические требования.
Кочкорбаева, Ч.Т. Исследование и разработка новых комплектов для строителей [Текст] / Ч.Т. Кочкорбаева, С.Ш. Ташпулатов // Механика и технологии / Научный журнал. – 2023. – №2(80). – С.99-107. https://doi.org/10.55956/QXAQ3693