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The American Journal of Engineering and Technology

Volume 2.
Issue 09.

Volume02Issue09

September 2020

Explore the research published in this issue. Read article details, abstracts and available full-text files.

Open access ISSN 2689-0984 27 articles
tajet ISSN 2689-0984

Ideas without
boundaries.

The American Journal of Engineering and Technology

VOLUME 2 / ISSUE 09 SEPTEMBER 2020
IN THIS ISSUE

Table of contents.

27 articles

Engineering and Technology

27 articles
1
Engineering and Technology · OPEN ACCESS 25 September 2020

Drying Precess-A Factor That Ensures Long-Term Storage Of Agricultural Raw Materials

Akabirov Laziz Isamidinov, Gafurov Karim Hakimovich, Majidov Kakhramon Halimovich

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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.

 

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2
Engineering and Technology · OPEN ACCESS 30 September 2020

Electricity Quality And Power Consumption In Low Power (0.4 Kv) Networks

Mashalbek Erkinovich Yulchiev, Afzaljon Axror Ogli Qodirov

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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.

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3
Engineering and Technology · OPEN ACCESS 10 September 2020

Architectural Development Of Amir Temur Mausoleum In XIV-XV Centuries

Nilufar Tukhboeva

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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.

 

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4
Engineering and Technology · OPEN ACCESS 28 September 2020

Increasing The Yield Of Raw Silk Based On The Study Of Reducing The Anisotropy Of The Cocoon Shell

Sanat Sunnatovich Khaydarov, Nigora Murtozayevna Islambekova, Nuriddin Muxiddin ogli Muxiddinov, Nargiza Fayzullayevna Rasulova

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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.

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5
Engineering and Technology · OPEN ACCESS 19 September 2020

Execution Investigation Of Self-Energized Acceptance Generator Driven At Variable Breeze Velocities

A.M. Popoola , T.A. Omemu

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This paper talks about consistent state investigation and execution qualities of a three-stage
enlistment generator self energize with capacitor per stage. It is indicated that for this method of
activity, there are sure ranges over which the estimations of the terminal capacitor, C, machine speed
and burden impedance must be maintained in control to keep up self excitation. As a rule, the
presentation qualities are unequivocally affected by the estimation of C and rules are proposed for
choosing its legitimate worth. This paper likewise presents the hypothetical and test aftereffects of
self energized enlistment generator under fluctuating rotor speed activity of examination. Three stage
3.7kW enlistment machine energized with even capacitor bank and stacked with balanced three stage
resistive burden, was the subject of examination. Tentatively acquired outcomes have been
contrasted and determined execution bends and awesome understanding between them has been
accomplished.

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6
Engineering and Technology · OPEN ACCESS 29 September 2020

Elements And Devices For Monitoring And Controlof Energy Efficiency

Siddikov Ilkhomjon khakimovich, Boikhonovzailobiddinurazali Ugli , Karimjonov Dilyorbek Doniyorbek Ugli

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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.

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7
Engineering and Technology · OPEN ACCESS 28 September 2020

Analysis Of Tanda Yarn Fiber Quality Indicators In Cotton Yarn Hardened Fabric Production

Mirjamol Mirkarimovich Mirxojayev, Jamshid Fakhriddin ogli Ergashev

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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.

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8
Engineering and Technology · OPEN ACCESS 15 September 2020

Comparative Analysis Of Elongation Deformations Of Mixed Yarns In The New Range

Zokhidjon Juraboevich Atamirzaev

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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.

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9
Engineering and Technology · OPEN ACCESS 29 September 2020

Automation Of Technological Processes And Development Of Robotics

Muhammadjonov Muhammadyusuf Shuxrat o'gli, Abdullayev Bekhzod Burkhonjon o'g'li

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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

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11
Engineering and Technology · OPEN ACCESS 14 September 2020

Development Of Effective Technology Of Cotton Cleaning

Djamolov Rustam , Sheraliyev Sherzodjon , Turaeva Shakhlo

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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.

 

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12
Engineering and Technology · OPEN ACCESS 29 September 2020

Joint Synthesis Of Acetone And Acetaldehyde From Acetylene

Kenzhebek Akmalaiuly, Fayzullaev Normurot Ibodullaevich, Karjavov Abdikhakim Rahmonovich

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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.

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13
Engineering and Technology · OPEN ACCESS 25 September 2020

The Use Of Fractal Theory In Digital Signal Processing In Radio Communication Systems

Davronbekov Dilmurod Abdujalilovich, Tuychiev Bekzod Oromovich

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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.

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14
Engineering and Technology · OPEN ACCESS 30 September 2020

Significance And Harmful Effects Of Some Heavy Metals Present In Food For The Metabolic Process

Sevara Tojimatovna Yulchiyeva, Shaxnoza Davlatovna Hudoyberdiyeva

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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.

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15
Engineering and Technology · OPEN ACCESS 10 September 2020

Improvement Of Geodetic Support During The Construction Of Long-Distance Linear Structures Using GPS Technologies

Askar Anvarovich Kadirov

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This research paper provides an improvement in geodetic support during the construction of longdistance linear structures using modern GPS technologies. When performing hydrographic surveys
using the global navigation satellite systems GPS, the tack is laid along the project lines determined
during the planning of the hydrographic survey.

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16
Engineering and Technology · OPEN ACCESS 28 September 2020

Method Of Assessing The Bending Resistance Of Yarns In Suit Folding Fabrics

Mirjamol Mirkarimovich Mirxojayev

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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.

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17
Engineering and Technology · OPEN ACCESS 21 September 2020

Designed For Efficiency Plan: Exploratory Investigations Of Perform Multiple Tasks Vehicle

Nili Oxman, Yoram Anglister, Uzi Motro

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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.

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18
Engineering and Technology · OPEN ACCESS 30 September 2020

A Practical Method For Calculating Cylindrical Shells

Davlyatov Sh.M, Egamberdiyev B.O

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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.

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19
Engineering and Technology · OPEN ACCESS 28 September 2020

Analysis Of Fibrous Wastes Generated During Spinning Of Cotton Fiber In The Re-Spinning System

Dilmuhammad Davronbek Ogli Atambayev, Nuriddin Tojimirzayevich Gofurov

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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.

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20
Engineering and Technology · OPEN ACCESS 19 September 2020

Analysis Of Selected Fabric Properties For Children’s Light Clothing

Jamoliddin Samatovich Ergashev, Dilrabo Khabibillayevna Rayimberdiyeva, Rashida Abduganiyevna Ergasheva, Vasila Kabulovna Kenjayeva

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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.

 

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21
Engineering and Technology · OPEN ACCESS 29 September 2020

Architectural Research Of The Open–Air Museum Akhsikent

Kamol Rakhimov , Sanjar Valiev

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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

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22
Engineering and Technology · OPEN ACCESS 27 September 2020

About The Special Regime Of Use And Standards Of Land Plots And Their Buffer Zones Located In Borders Of Roadside Strips Of Highways Of The Ferghana Region Of The Republic Of Uzbekistan

Abdullayev Ibrohim Numanovich, Marupov Azizxon Abbosxonovich

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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.

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24
Engineering and Technology · OPEN ACCESS 29 September 2020

Mathematical Modeling Taking Into Account Features Of Different Drive States Of Pump Station Electric Drive Systems

Sultonov Ro’zimatjon Anvarjon o’g’li

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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.

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25
Engineering and Technology · OPEN ACCESS 26 September 2020

Vector Guess Record: Group Limit In High-Measurement Informational Collection

Anand Patel

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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

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26
Engineering and Technology · OPEN ACCESS 10 September 2020

Improving Calendar Modeling Of Array Construction Typical Low-Rise Buildings By Flow Method

Yusupova Lobar Sidiqovna, Mirakhmedov Makhamadjon

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Population growth, the compact location of villages and towns around cities, the creation of jobs on
their territory makes the construction of affordable housing in rural areas relevant. In order to
improve project management, in particular, to create a single platform that unites the efforts of
construction participants and further reduce the cost of projects, a methodology has been proposed
for developing a schedule for the construction of a complex consisting of an array of residential
buildings, social infrastructure and linearly extended structures. The resulting schedule can be used
to conclude contracts between construction participants and clarify financing schedules, start and
end dates of stages, supply of material and technical resources to the construction site.

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27
Engineering and Technology · OPEN ACCESS 28 September 2020

Complex Processing Of Lead-Containing Technogenic Waste From Mining And Metallurgical Industries In The Urals

Khakimov Kamol Djurayevich, Eshonqulov Uchqun Kxudoynazar O’g’li, Amanov Tolib Sirozhevich, Umirzoqov Azamat Abdurashidovich

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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.

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