GAMMA-IRRADIATION OF ALUMINUM OXIDE Al2O3 AND ITS FEATURES DETECTED BY POWDER DIFFRACTOMETRY

Kosimov I.O., Hojiyev Sh.T., Gaibnazarov B.B., Makhmudov M.A.

X-ray diffraction analysis of materials is a standard method for phase identification and characterization of polycrystalline materials [1]. Experimentally, various peaks were detected in the X-ray phase analysis (XRD) spectra of aluminum oxide Al2O3 samples. Based on the data (XRD) of samples of aluminum oxide Al2O3 obtained for sample with different modes of powder production, Miller indices and lattice parameters were determined. The experimental data obtained are in good agreement with the data obtained by other methods.

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METROLOGICAL SUPPORT OF MEASUREMENT OF KINEMATIC VISCOSITY OF LIQUID MEDIA TAKING INTO ACCOUNT UNCERTAINTY OF MEASUREMENTS

Masharipov Shodlik Masharipovich

The articles disassemble the content of the metrological traceability of the presented viscosity of the poor. Viscost is a free liquid liquid backlight transmitted in one direction. Thus, viscosity is a freelance training by the mayor, mainly of which is a hung chemical horse and a dimensional molecule. K naibolee rasprostranym methods of viscosity measurement are capillary, rotary, falling ball methods, vibrational (oscillatory or oscillative), plant. Depending on the measurement method used, the formation of a cinematic, dynamic and assimilated viscous liquid will be determined.

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CALCULATION OF THE ABSORBED DOSE IN PHANTOMS USING THE DOSXYZNRC SOFTWARE PACKAGE

Ashurov Sindorjon Akhmadjon ugli, Yomghirov Olimjon Tolib ugli, Karimova Nozliya Nabijon qizi

Based directly on the DOSXYZ code created for the EGS4 code system, DOSXYZnrc is a Monte Carlo simulation code for determining dose distributions in a rectilinear voxel phantom. The OMEGA-BEAM system of codes created at NRC includes DOSXYZnrc. Every voxel may have a different density and substance. A variety of beams, including complete phase-space files from BEAMnrc and beams described using Beam Characterization models, may be incident on the phantom. A CT data set of Hounsfield numbers may be read in and converted by the companion application ctcreate into the details required by DOSXYZnrc to simulate transport in a phantom (i.e. the appropriate material and density are specified in each voxel)[1]. This CT phantom can be incident on any of the available beams. The code has a restart feature and may be executed on platforms for parallel computing.

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FACTORS AFFECTING THE FINANCIAL ACTIVITY OF STATE-OWNED ENTERPRISES

Choriev Fazliddin

The analysis of the capital structure of state enterprises and the factors influencing its capital profitability are analyzed. At the same time, the limit values of own funds and debt funds in relation to total assets and the limit values of leverage indicators of the capital structure were calculated.

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ANALYSIS OF THE DEVELOPMENT OF SMALL BUSINESS AND PRIVATE ENTREPRENEURSHIP IN THE SAMARKAND REGION

Togayeva D.A.

This article analyzed and studied the cases of small business and private entrepreneurship in the Samarkand region over the past years, and examined the work to be done on the development of small business in the coming years and made appropriate suggestions and recommendations.

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REVERSIBLE MEDIUM FOR RECORDING AND STORING INFORMATION BASED ON VANADIUM DIOXIDE V2O5

Gaibnazarov B.B., Tursunov M.A., Tajibaev A.T., Khojiev Sh.T., Kosimov I.O

X-ray diffraction analysis of materials is a standard method for phase identification and characterization of polycrystalline materials [1]. Experimentally, various peaks were detected in the X-ray phase analysis (XRD) spectra of vanadium penta oxide V2O5. Based on the data (XRD) of sample of vanadium penta oxide V2O5 obtained for samples with different modes of powder production, Miller indices and lattice parameters were determined. The experimental data obtained are in good agreement with the data obtained by other methods.

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CRЕATION OF AGRICULTURAL ЕLЕCTRONIC MAРS USING GЕOINNOVATION MЕTHODS AND TЕCHNOLOGIЕS

Khakimova Kamola Rakhimjonovna, Yokubov Shеrzodbеk Shavkat o‘g‘li

In this articlе, basеd on thе tеchnological systеm of agricultural maррing by rеmotе sеnsing of thе Еarth, thе еlеctronic, intеractivе, wеb maрs of agriculturе using thе рroрosеd tеchnological systеms, using thе maррing of agricultural fiеlds, gеoinformation systеm and tеchnologiеs, and рrogramming рlatforms information about рriority arеas of рroрosals and rеcommеndations for imрrovеmеnt of crеation mеthods is givеn.

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COORDINATION OF THE PEDAGOGICAL PROCESS AND THE CHOICE OF THE RIGHT TEACHING METHODS - AN IMPORTANT ASPECT OF THE EFFECTIVENESS OF EDUCATION AND UPBRINGING

Abdijabbar Norbutayevich Usmanov

This article describes the theoretical and practical problems facing the education system, the importance of coordinating the pedagogical process and the right choice of teaching methods in overcoming them to ensure the effectiveness and prospects of education.

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THE ROLE OF MATHEMATICS IN THE FORMATION OF DESIGN COMPETENCE OF FUTURE ARCHITECTS AND BUILDING ENGINEERS

Khamidov Jalil Abdurasulovich, Akhadova Komila

The foundational principles of design have been built on mathematics since the beginning of time. Based on Euclid's classical geometry, mathematics was one of the branches of architecture in ancient Greece. At this time, graduates of the university's construction and architecture disciplines cannot possibly be expected to have advanced mathematical proficiency. We work on professional-focused assignments and projects with students to help future architects and civil engineers strengthen their mathematical proficiency. Mathematical foundations are required for all design solutions in architecture and construction. Therefore, any architect or civil engineer should be familiar with the theoretical underpinnings of mathematics, have the ability to create mathematical models, and be able to use mathematical-statistical approaches to process experimental data in order to address real-world problems.

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NEW GENERATION OF BIOREACTORS: THE BAREHOLE BIOREACTOR

N.J.Gulmuradov, I.J.Raxmatulloyev, A.F.Juraboeva, Y.S.Xidirov

Biogas reactors are a huge technical and technological installation that operates mainly as a result of the solar heat on earth and serves to produce biogas, but in areas where air temperatures are meant to vary (although in Uzbekistan, where there are four seasons), sunlight cannot heat the bioreactor enough during 12 months. Therefore, for the purpose of producing and storing biogas, the drilling hole's diameter is as wide as possible (1600-2000 mm), and the depth of the drilling hole is calculated normally (based on geothermic conditions) for the formation of biogas We drill wells of up to 1700 to 2500 m and strengthen the side walls through special preservation and build a biogas storage and harvesting reactor.The geothermal gradient of the underground does not depend on the sharp change in weather on earth based on its depth, so enough temperatures (+30o, +40o) to produce biogas are provided by selecting the required depth for biomass.The difference and advantage of technology over other types of bioreactors is: the length of service life of the wells produced, the low human factor in the course of the process, and the low likelihood of problems resulting from external influences in the environment, as well as one of the most positive indicators of it, is that the process of biogas separation does not slow down due to the likelihood of cooling air.

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