Vol. 2 No. 09 (2020)

The article develops an algorithm for assessing the bending resistance of yarns of suit embroidered fabrics, on the basis of which the theory of displacement of cross-sections of the free part of the yarn is determined experimentally by the bending stiffness of Arqaq yarns with different weaving and fiber content. The reasons for the appearance of various irregularities on the surface of the suit are shown. It was found that the properties of Tanda and Arqaq yarns depend on the natural properties of the fibers, their length, the technological properties given during the spinning process.

There are given facts about using of wind electro-energy engine with a little power in this article.Setting’s technique economical calculations and efficiency are counted practically depending on the wind velocity also here.

This article examines the analysis of selected fabric properties for children’s light clothing. Also in this article, as each garment has its own function, when choosing a material for children's shoulder garments, it is necessary to take into account its characteristics, the sum of the average values for all indicators, the characteristics of relative sensitivity, the most noticeable. After determining the feature indicators, the relative sensitivity coefficient was calculated to distinguish them from the indicators, the relative significance of the selected indicators was checked using the formula, and the concordance coefficient was determined to assess the suitability of the study.

In numerous cutting edge application extends high-dimensional element vectors are utilized to
demonstrate complex informational collections. We have proposed an outline about proficient
ordering strategy for high-dimensional database utilizing a sifting approach known as vector estimate
approach which bolsters the closest neighbor search effectively And A bunch separation bound
dependent on isolating hyper planes, that supplements our list in electively recovering groups that
contain information sections nearest to the question. The Formation of guess for Vectors for use in
similitude is inspected

Roadside safety zones of highways of local, district, regional and Republican significance in the Ferghana region of the Republic of Uzbekistan were studied. The article analyzes the actual condition of the exclusion zones of highways with adjacent land use and development, intersections with such communication systems as Railways, water barriers, underground and aboveground power and communication lines, gas pipelines of different pressure, with different terrain. The normative and technical documentation regulating cadastral relations of the road sector with land users and developers is presented. Scientific and practical recommendations are given to improve these relationships and improve the efficiency and safety of land use in roadside areas.

This article discusses the analysis of indicators for the detection of waste in the production of cotton yarn. Indicators for analysis and research were used to determine the properties of fibrous wastes.  The results of HVI-1000 equipment were analyzed to determine the quality of toll waste.    The amount of fiber suitable for spinning from fiber wastes has been determined. The analysis of the theory of fibrous wastes formed during spinning of cotton yarn in the recycling system is shown.

The article is based on the construction of mathematical models based on the calculation of losses from errors in the operation of pumps used in pumping stations. Recommendations on improvement of electric drive systems used in power management of pumping stations and application of energy-saving methods based on mathematical models have been developed.

For the first time in Uzbekistan, an architectural study of the open-air museum-reserve in the ancient settlement of Akhsikent is being carried out. Historical studies of ancient urban planning are presented and an original architectural project for the preservation of national heritage for future generations is being developed. The study envisages the creation of a museum-reserve with the placement of appropriate infrastructure for tourists

This article outlines the main provisions of the proposed method of determining the stress-strain state
of cylindrical shells. The method can be used to calculate the various sheet structures, such as
rectangular and cylindrical steel tanks for the storage of fluid substances.

The article provides an analysis of scientific work done to improve the cleaning efficiency of ginners. The result is based on the effect of the cross-sectional shape of the columns on the cleaning efficiency when cleaning cotton from large contaminants.

The analysis of the grate grate concludes that additional shaking of the raw material in the cleaning zone is necessary to increase the cleaning efficiency.

The plan of rough terrain vehicles is muddled. Especially when the driving, is went with another
assignment, at the same time. Such an intricate situation may prompt human mistake and end up with
a mishap. The writing recommends three consolidated and significant angles, in vehicle structure:
vision control, anthropometrical fitting and biomechanical contemplations. No examination is
discovered which underpins a rough terrain vehicle plan from every one of the three viewpoints
together. Likewise, the broad utilization of PC supported structure (computer aided design) in the
vehicles' plan stages, produce just subjective outcomes. This investigation presents a spearheading
test ergonomic exploration, of a rough terrain lodge structure. The exploration asks the three
aspects,combined, creating quantitative outcomes. These outcomes produce a superior fitted
structure to the administrator and his operational needs, which help the specialist to plan a cabinthat
may prompt less exhausting sitting stances and weakness.

When digital signal processing in a radio communication system, it is advisable to calculate the fractal dimension D and the Hausdorff dimension based on the topological mathematical expression D_0, analyze the methods of digital signal processing by the electro-optical method, i.e. perform experimental calculations of fractal points.

Research is being conducted in Uzbekistan on the cases of symmetrical operation of low-voltage (0.4 kV) power distribution networks. One of the main reasons for the excess of electricity quality indicators over normative indicators is the uneven distribution of network phases, which leads to an increase in energy losses.

The study investigated the possibility of using catalysts based on compounds of cadmium, zinc and other elements filled with orbital electrons d10, having several polyfunctional properties, as well as promoted by compounds of various metals in the hydration reaction of acetylene and its derivatives. The acetylene hydration reaction yields acetaldehyde or acetone depending on the composition and nature of the catalyst used under the same conditions. In particular, the formation of acetylene at 360-440 0C in the presence of a catalyst from cadmium fluoride-containing 20% CdF2, 5.0% AlF3, 75% Al2O3: acetaldehyde formation when reacted with water = 1: 3-1: 5, cadmium fluoride, It has been found that using catalysts containing zinc, iron, nickel, cobalt compounds instead of aluminium fluoride, the process leads to the formation of acetone.

Heavy metal is used to refer to metals and semi-metals with a density of more than 5 gr/cm3. The rapid developments of the new technologies in numerous projects and soil contamination by heavy metals, make the soil structure poisonous for plant growth and development, and they all damage the soil biodiversity. Water is also essential for the survival of all living organisms, but unfortunately sources of water used in industries are suffering from all kinds of pollution. The aim of this study is to review the level of food contamination with toxic heavy metals in world. This study was a descriptive overview with entry criteria, relevant information and the keywords of the research.

Heavy metals such as Zn, Pb, Fe, Ni, Co and Cu are abundant in the environment and contribute greatly to the stability and balance of ecosystem processes. However, the fact that they are in excess pollutes the food chain and then becomes a source of poisoning for humans and the entire ecological function. This is an important problem in the study of ecology and geochemistry.

This article explores the mechanical properties of yarns made from a mixture of synthetic and cotton yarns. The yarn test results were analyzed and it was found that the mechanical properties of the blended fibers, including Lycra and polyester yarns, were better. Therefore, it is advisable to use these yarns for the production of highly elastic knitted fabrics. The materials and knitted fabrics were analyzed to have high elasticity, softness and high mechanical properties compared to other yarns.

In this article, traditional and innovative methods for treating the surface layer of a part by plastic deformation form roughness and dislocation of structures are presented.

This article analyzes the indicators in determining the quality of cotton fiber in the production of cotton yarn. For the analysis and research, we used the characteristics of the fiber of the selection cotton varieties, which differ sharply in terms of indicators. The system calibration procedure is used to determine the fiber quality. Differences in fiber performance in equipment have been found to affect the quality of yarn in spinning mills. An analysis of the theory of factors influencing tissue virility is presented. It is shown that the differential equations of the yarn, in which the law of deformation of linear and nonholonomic bonds remains linear, are nonlinear.

Currently, robotics is widespread in almost all areas of activity and production. The need for the use of robotic equipment is due to the need to automate production and increase its volume due to this. The purpose of this article is to consider the significance of the use of robotics in the modern world. The global economic crisis, in which there was a need to increase labour productivity, caused an increased interest in the use of robots in industry. The research was initiated to find out how to best use robots, under what conditions they are cost-effective and how to design and manage the introduction of robotics

In this article discusses the development of information software and intelligent measurement systems for the management and control of energy efficiency, demand for energy efficiencyб growing intelligent energy metering and monitoring systems are being developed, and new opportunities, opening up for assessing of energy efficiency of an enterprise.

In this article the new information is given about the forming of the Amir Timur mausoleum’s ensemble which was famous by the name of Guri Amir.

Archaeological excavations conducted in 1943-1970 revealed that the foundations of the courtyards were much higher than the medresses and bedsheets and did not even have a foundation under the courtyard wall.

It is shown that the main factors providing the processes of drying agricultural raw materials are thermophysical properties and dimensions, the shape and condition of the outer surface, the interval of changes in the moisture content of the material during the drying process, etc. The internal structure of the material has the strongest effect on the drying process. For dispersed materials with particles with a diameter of more than 2 mm and a critical pore radius of less than 2 nm, the duration of convective drying is more than 1 h, while for dispersed materials with a critical pore radius of more than 100 nm (all other things being equal) it is within 0.5 - 3 p.

In the research work, it was proved that the silk yield depends on the hybrid, weight, hardness, size and thickness of the cocoon shell of the silkworm.

At the same time, it has been studied that the initial processing modes of the cocoon, storage, sorting, evaporation of the cocoons and spinning of the cocoons have a great impact on the output of raw silk. The thickest part of the cocoons is the waist, which varies from 0,14 mm to 0,45 mm. These figures also indicate the anisotropy of the cocoon shell. In order to reduce the anisotropy of the cocoons, we found a noionogenic SАM to obtain the solution and process the cocoons. We prepared different concentrations from the obtained SАM and studied their absorption into the cocoon shell. As a result, in the study, it was found that the cocoons were treated with a 0,1% SAM solution to determine the wetting and permeability properties, which improved the yield of raw silk. As a result of cocoon processing, the output of raw silk increased by 4.36% compared to control, the output of silk increased by 3,37%, and the output of cocoon skin decreased by 2,27%. The specific consumption of cocoons was 2,76 kg.

The current economic situation forces copper smelters to refuse to process man-made waste (slags, dusts, cakes, etc.). Lead-and zinc-containing solid waste accumulates in significant quantities on the territory of factories, in so-called “temporary " dumps, and is often stored on the sites of enterprises. Attempts to sell lead-containing industrial products encounter difficulties related to low prices on the part of lead monopolists, problems with the preparation and transportation of industrial products, environmental and other restrictions.