EXPERIMENTAL INVESTIGATION OF THE THERMOPHYSICAL CHARACTERISTICS OF THE MELATIC MEAT
Author: Iskandarov Zafar, Abdieva Gulmira, Saidkhujaeva Nafisa, KarimullaevaMarziya, Matyakubov Maqsad
Abstract:
This article presents some results of experimental studies of the thermophysical characteristics of melon pulp. The thermophysical characteristics of the pulp of melons of different varieties in the temperature range from 20 º to 70 ºС are determined. It has been established that thermal conductivity and thermal diffusivity increases with increasing temperature almost linearly. Empirical expressions for the coefficients of thermal conductivity and thermal diffusivity are obtained. These data will be useful in the thermal calculation of drying installations in the production of dried melon.
THE BENEFITSOF UTILIZING VIRTUALEDUCATIONAL TECHNOLOGIES IN THE DEVELOPMENT OF STUDENTS‘ SKILLS INMICROBIOLOGY
Author: Bakhodirova Umida Bakhodirovna
Abstract:
The article discusses the benefits and prospects of virtual teaching technologies in the development of necessary learners‘ skills in microbiology.
THE IMPORTANCE OF PICTIA IN PURIFYING RUNNING WATER.
Author: Cholpona Kuchkarova
Abstract:
In current article the methods of purifying of sewage grey water plants with pistia telezorovid are given. The methods of efficient ways of analyzing in laboratory conditions are highlighted. The chemical and physical features of pistia plant are given.
DEVELOPMENT OF LINEAR MATHEMATICAL MODELS OF THE TECHNOLOGICAL PROCESS OF CRUSHING SEEDS CRUSHING
Author: Yusupov Firnafas, Kim Tatyana Yurevna, Nurmetova Bonuraxon Baxromovna, Xojibayev Jonibek Maxmudjonovich
Abstract:
The simplified statistical linear model of the object under study is developed on the basis of experimental and statistical studies of the technological process of crushing the cottonseed of an oil extraction plant using the experimental design method. The analysis of the homogeneity of the dispersion, the significance of the coefficients of the linear model and the adequacy of the resulting model.
MATHEMATICAL MODELS OF MULTI-COORDINATE ELECTROMECHATRONIC SYSTEMS OF INTELLECTUAL ROBOTS
Author: Nazarov Hayriddin Nuriddinovich, Temurbek Rakhimov Omonboyevich
Abstract:
In the article mathematic description of mechatronic module in intelligent robots and robotic systems are observed. To display the structure of mechatronic modules, which consist of interrelated different electrical, magnetic and mechatron components, mathematic models by the help of multiplication theory based on relations and visualising lines and points are designed. Analytical explanation of mechantronic modele in intelligent robots is provided.
DEVELOPMENT OF INGIBITOR COMPOSITION OF CORROSION FOR PROTECTION OF STEEL ARMATURE
Author: Jumaniyazova Dilnoza Maxsudovna, Zakirov Baxtiyor Sabirjanovich, Jumaniyazov Maxsud Jabbiyevich
Abstract:
For over 150 years, reinforced concrete structures have been used in construction. A long-term study of the durability of reinforced concrete structures in various operating conditions shows that dangerous damages caused by the development of reinforcement corrosion, which pose a threat to public health, are often encountered. Corrosion of reinforcement is usually caused by exposure to reinforced concrete by atmospheric chemical factors caused by the presence of aggressive components in concrete, such as sulfates, carbonates, chlorides. Today in domestic practice there are over 100 different compositions for inhibiting the corrosion of reinforcing steel. The disadvantages of the existing anticorrosive materials are their high cost and low accessibility, as well as the impossibility of using them to combat multicomponent salt and acid corrosion. In the conditions of the Aral Sea region, in the production of reinforced concrete products, highly saline water and quartz sand are used, which contain chloride and sulphate salts of calcium, magnesium and sodium in various amounts (Table 1). With the presence of the listed salts in the composition of reinforced concrete products, steel reinforcement is subjected to severe corrosion. Therefore, one of the important tasks is the protection of steel reinforcement in concrete products produced in the conditions of the Khorezm region and the Republic of Karakalpakstan.
STRUCTURAL FEATURES OF SOLID SOLUTIONS (InSb)1-x(Sn2)x FILMS GROWN FROM A LIQUID PHASE ON GaAs SUBSTRATES AND SOME PHOTOELECTRIC PROPERTIES OF HETEROSTRUCTURES ON THEIR BASIS
Author: Saidov Amin Safarbayevich, Usmonov Shukrullo Negmatovich, Asatova Umida Palvanovna, Tolmas Ishniyazov
Abstract:
Layers of solid solutions (InSb)1-x(Sn2)x on (100) GaAs and (100) GaP substrates were grown by liquid phase epitaxy from an indium melt solution. The solid solution (InSb)1-x(Sn2)x (0 х 0.05) had a mono-crystal structure with the orientation (100), constant of the lattice as.s. = 6.486 Å and the hole conductivity type. The spectral dependence of the absorption coefficient was used to estimate the band gap of the epitaxial layer of the solid solution, which was 0.11 eV. The spectral photosensitivity of n-GaAs–p-(InSb)1-x(Sn2)x and n-GaP–p-(InSb)1- x(Sn2)x heterostructures covers the wavelength range from 1.0 to 5.3 μm.
USING THE METHODS OF NON-GPS NAVIGATION
Author: Matyokubov Utkir Karimbevich, Bekimetov Alisher Farxodovich
Abstract:
Mobile communications must be enhanced by establishing a non-GPS technology that can detect the positions of mobile stations precisely. In this paper, we propose methods of Okamura-Hata and Wolfish-Ikegami used. The purpose of this work is to carry out complex research of features and the supervision organization of objects by means of GPS.
STATE AND PERSPECTIVES OF DEVELOPMENT OF INFORMATION SYSTEMS BASED ON CFL IN THE WORLD AND IN UZBEKISTAN
Author: Masharipov Otaboy Matyoqubovich, Bekimetov Alisher Farhodovich, Samandarov Bunyod G’ayratovich
Abstract:
In this work, the authors discuss the condition and prospects of developing information systems based on fiber-optical communication lines (VOLC) in the world and in Uzbekistan. The article also analyzes literature on the subject and provides a review of the status of fiber-optic communication lines globally and within Uzbekistan. The article examines the achievements of fiber-optical communication lines in developed countries and considers the implementation techniques.
ORGANIZATION LOCAL RADIO WAVES WITH A WAVELENGTH λ=160M AND FREQUENCY WITH 1,600 ÷ 1835 KHZ MIDDLE-WAVE DIAMETER
Author: To’lqin Matqurbanov Alimboyevich
Abstract:
This abstract deals with the use of detecting and correcting errors in the organization of waves and radio communication lines, providing quality and reliable connection between central radio stations and their baseband units.
