Science and Technology Other Topics

В статье рассказывается о компетентности и результатах эффективности использования культуры умственного труда при преподавании предмета информатика. Написано, что умственным трудом могут пользоваться все, от школьников до студентов, аспирантов, учителей, инженеров, врачей, художников, поэтов, композиторов, ученых, политиков и многих других. По мере того, как наука развивается по мере роста техники, по мере роста общественного прогресса значение, тип умственного труда будет увеличиваться. Можно с уверенностью сказать, что будущее-это время умственного труда. Поскольку предмет информатики сосредоточен на компьютерных технологиях, ум означает, что культура труда и современные технологии дополняют друг друга. В эпоху цифровизации образования мы говорим о влиянии культуры интеллектуального труда на использование цифровых технологий во всех сферах жизни.

The article provides a comparative analysis of turbulence models by numerically simulating a swirling flow inside a rotatable pipe. To
solve this problem, the Reynolds averaged non-stationary Navier-Stokes equations in a cylindrical coordinate system were used. To find the Reynolds voltage, the turbulence model was used the most popular semi-empirical turbulence model. Comparison is made between models of different approaches to turbulence SSG / LRR-RSM-w2012 and νt-92. The numerical results obtained on the basis of turbulence models are compared with the well-known experimental results of Reich and Beer (1989)

Данная статья посвящена сравнительному анализу звукоизоляционных качеств многослойных легких перегородок. Целью исследования является определение наилучших практик при обеспечении максимальной звукоизоляции внутри зданий. Для достижения этой цели, мы анализировали различные образцы многослойных перегородок с помощью экспериментальных, натурных исследований и расчетов по методике, приведенной в КМК 2.02.08-19.

The article considers popular types of insulation materials produced and used in construction in the Republic of Uzbekistan, such as mineral wool, polystyrene foam and aerated concrete blocks. The comparative analysis of physical parameters is carried out, as well as advantages and disadvantages of each of the considered types of insulation materials are presented. The data of estimation of economic efficiency of application of materials are given. The work is aimed at identifying the best insulation from the above presented.

Ushbu maqolada ta’lim tizimidagi amalga oshirilayotgan islohatlar, ta’lim infratuzilmalari, ta’limni innovatsion rivojlantirish, xorijiy davlatlarning ta’lim tizimidagi innovatsion jarayonlar va ularning qiyosiy tahlili haqida so‘z yuritiladi.

The article discusses issues of design and construction of city streets, including the implementation of the transport system, presents city streets, their elements, classification, types, urban transport, automobile parts, transport and issues of organizing pedestrian traffic.

Andiz (Inula) – qoqidoshlar oilasiga mansub ko‘p yillik o‘tlar turkumi haqida keltirilgan. O’zbekistonda va dunyoda dorivor o’simliklarni biologik faol moddalar tarkibini o’rganishga ham katta e’tibor berilmoqda, chunki inson tanasidagi gormonlar, vitaminlar, aminokislotalar, fermentlar bilan bog’liq bo’lgan optimal miqdori va nisbati fiziologik jarayonlarning normal o’tishini ta’minlaydi va ularning yetishmasligi inson tanasida turli xil patologik jarayonlarning rivojlanishiga sabab bo’lishi mumkin

In this article, the characteristics of dispersed reinforced concrete, materials for dispersed reinforced concrete, current methods of production of composites based on dispersed reinforced concrete, their advantages and the development of dispersed reinforced concrete production in our country.

The article identifies the state of displacement and deformation of the roof of a 12-storey hotel building under construction in Khorezm region as a result of unusual loads and seismic effects during the helicopter landing.

Maqolada ishlab chiqarish korxonalaridan chang va zaxarli gazlarni atmosferaga tashlanishi natijasidagi ekologik muammolar, ularni tozalash qurilmalari, yutuqlari va kamchiliklari va sohadagi innovatsion yechimlari keltirilgan.

Zamonaviy kuzatuv tizimlarida virtual chegaralarning CCTV kameralari bilan o‘zaro integratsiyalashuvi belgilangan hududlarda kuzatuvni ta’minlash va virtual belgilangan chegaralarning ichki qismida anomal obyektlarni aniqlash imkonini beradi. Ushbu tezisda virtual chegaralar bilan CCTV kuzatuv tizimlari yordamida ob'ektni aniqlash usullarining samaradorligi va afzalliklari keltirilgan. Tezisda virtual chegaralarning chegaralangan hududlarni belgilash va obyektlarni aniqlash, shuningdek, CCTV tasvirlarida anomal obyektlarni aniqlash bilan bog‘liq muammolarga yechimlar ko‘rib chiqilgan. Tezisda ilg‘or metodologiyalarni, xususan, chuqur o‘rganishga asoslangan modellarni qo’llash orqali obyektni aniqlash algoritmlarini aniqligini oshirish va ushbu modellarni virtual chegaralar bilan integratsiya qilish samarali yechim sifatida taqdim etilgan.

Исследователями было обнаружено значительное увеличение удельной активности пируваткиназы и лактатдегидрогеназы в лобной и височной коре головного мозга при болезни Альцгеймера (AD), тогда как активность альдолазы и гексокиназы не изменяется при этом нейропсихиатрическом расстройстве. При болезни Альцгеймера активность глюкозо-6-фосфатдегидрогеназы значительно снижена в гиппокампе.

This article is written to describe whether cartoon films can improve students’ pronunciation ability and to what extent cartoon films can improve students’ pronunciation ability. Furthermore, to identify what happens when cartoon films are used as a teaching learning media in pronunciation practice.

Проводили моделирование токсического гепатита у белых крыс самцов линии Вистар массой 200 г путем внутрибрюшинного введения 50%-го раствора CCl 4 (четыреххлористый углерод, тетрахлорметан) на оливковом масле из расчета 1 мл на кг массы тела два раза в неделю на протяжении всего эксперимента. Для потенцирования развития цирроза печени вместо питьевой воды крысы получали 10%-ный раствор этилового спирта с 3-х суток эксперимента.

The article provides a formula for calculating the amount of rainwater flow during drainage from city streets. Methods are given for determining the variable parameters included in the equation in relation to the conditions of Uzbekistan.

This article describes the formulas, calculation procedures and calculation methods given in the European, Japanese, Russian, and American standards for the calculation of the first and second group of limit states in the design of concrete structures with composite reinforcement. Also, the main hypotheses, principles and limit values of structures in the calculation of structures with composite reinforcement are mentioned.

This scientific article provides brief information about bitumen, which is considered an organic binder, and its types, the role of this binder in asphalt concrete raw materials.

Axborot texnologiyalari rivojlangan asrda insonlarni qiziqtirayotgan ma’lumotlarni qisqa fursatlarda topish hamda aniq natijalar olish ehtiyoji ortmoqda. Bunda albatta internet qidiruv tizimlaridan foydalanish eng maqbul tanlovdir. Qidiruv tizimlari yordamida turli veb-saytlardan kerakli ma’lumotlarni sanoqli soniyalar ichida qidirish va ulardan foydalanish mumkin bo‘ladi. Albatta, internet tarmog‘ida turli xil ko‘rinishda axborotlar ko‘plab topiladi. Bu esa axborotlar ichidan kerakli bo‘lgan ma’lumotlarni topish muammosini keltirib chiqaradi. Foydalanuvchi ma’lumotlarni izlayotganda mavjud internet qidiruv tizimlarini imkoniyatlarini bilish juda muhim hisoblanadi.

In recent years, effective additives, like superplasticizers, have become the main topical issue in the study of low water demanding binders in solving the problem of the shortage of Portland cement. Mechanical and chemical activation of the binder, for instance the addition of active mineral compounds, increasing the flexibility of the
cement and expanding the use of superplasticizers, allows saving a great deal of the cement. Factors related to the rise of the cement shortages, the reduction of high quality raw material resources, the growth of industrial waste and environmental problems are the main reasons, resulting in the extensive use of various mineral additives in cement materials.

The article substantiates the possibility of applying the limiting equilibrium method in assessing the seismic bearing capacity of reinforced concrete stone-frame buildings.

Object of research: is instrumental structures with Schottky barrier on basis of GaAs (GaP, InP), as subject of research arc selected transition process of the characteristic of metal металл-А3В5, generated by fine metals and amorphous films TiBx under the influence of 60Co gamma-radiation, microwave radiation and rapid thermal treatment.
Purpose of work: clarifying the mechanism of reproducibility increasing and stabilization of instrumental structures on basis of GaAs, GaP and InP with Schottky barrier generated by amorphous films TiBx.
Methods of research: Auger-electron spectroscopy in aggregate with ion etching (Ar+, En=l kiloelectronvolt), X-ray structural analysis, atomic-force microscopy. 6<)Co gamma-quantum irradiation conducted on installation MPX-/-25M, and microwave treatment with magnetron radiation on a frequency f=2,45 GHz with 1,5 Vt/sm2 output power density. Voltage-current characteristic investigated on standardized automated curve tracers.
The results obtained and their novelty: conducted the analysis of the mechanism of mechanical stress on films and contact structures against the A3B5, which allows clarify the regularity of processing factors' impact on mechanical stress of contact structures. Developed the physic-technological basis of contacts generating against A3B5 including rapid thermal treatment, which allows to control contact characteristic by the impact on phase formation process and interface characteristic. Developed the new technological approach to preparation of autoepitaxial films of InP n type, growing by the method of liquid-phase epitaxy on n -InP porous bottom layer and ohmic and barrier contacts to them using the amorphous interstitial phase of TiBx.
Practical value: findings on external action tolerance of the semiconductor instrumental structures with Schottky barrier on basis of A3B5 can be used in creating the semiconductor instrumental structures with Schottky barrier on basis of А3В5
Degree of embed and economic affectivity: findings of research arc used in research scientific works and engineering developments in “ORION” research institution at developing and preparing microwave diode with Schottky barrier.
Field of application: solid-state microwave electronics, semiconductor instrument making, the technology of microwave semiconductor instruments.

Sign language recognition has gained significant attention due to its potential to bridge communication gaps between the deaf and hearing communities. This article presents a comprehensive review of machine learning methods employed for the recognition of Uzbek Sign Language (UzSL). The unique visual and spatial nature of sign languages poses challenges that necessitate specialized techniques for accurate recognition. This review surveys various approaches, ranging from traditional techniques to modern deep learning methods, used to recognize UzSL gestures. The article begins by introducing the significance of UzSL recognition and its impact on facilitating effective communication for the Uzbek deaf community. It outlines the complexities involved in sign language recognition, including variations in hand shapes, movements, and facial expressions. The challenges of limited training data, real-time recognition, and capturing dynamic features are discussed in depth. A survey of traditional machine learning methods such as Hidden Markov Models (HMMs), Support Vector Machines (SVMs), and k-Nearest Neighbors (k-NN) is presented, along with their applications and limitations in UzSL recognition. The evolution of these methods into more sophisticated approaches like Dynamic Time Warping (DTW) and Conditional Random Fields (CRFs) is also explored.

Ushbu tezisda kimyosanoati korxonalaridan chiqayotgan gazlar tarkibidagi zarrachalar va gaz aralashmalarini tozalovchi, absorbsiyalash samaradorligi yuqori bo‘lgan, energiyatejamkor, ixcham barbotajli absorbsiya apparatini gidrodinamikasi.

Ushbu maqola barcha texnika va texnologiyadan foydalanuvchilar uchun mo’ljallangan bo’lib, eng so`ngi texnika va texnalogiya yangiliklari haqida bo`ladi. Shuningdek maqolada bugungi ta’lim tizimida zamonaviy axborot texnologiyalarining ahamiyati bayon etilgan.

Subjects of the inquiry: “Kamchik” pass, the long vehicles with truck and semitrailers, which used in mountain conditions of “Kamchik” pass.
Aim of the inquiry: Enhancing of the long vehicle efficiency with truck and semitrailer in using of mountain conditions
Methods of inquiry: used basic regulations of the theory of automobiles, experimental research methods; also math modeling and programming methods are used. Experimental checking of basic regulations of the theory is done in natural mountain conditions.
The results achieved and their novelty: Defining method of road longitudinal slope;
The mathematic model of moving of the long vehicle on mountain road, which allows the compare of degree of long vehicles’ accommodation to mountain conditions with specific productivity without additional experimental researches, individually for each model of the truck in natural conditions;
Recommendations for enhancing of the long vehicle efficiency with truck and semitrailer in using of mountain conditions of “Kamchik” pass.
Practical value: Elaborated enhancing method of the long vehicle efficiency with truck and semitrailer in using of mountain conditions allows: choosing the productive model of the truck for using conditions; enhancing of the truck productivity and to decrease of using expenses; to choose the construction parameters of the truck in step of designing or from constructions, which are produced; helps for specialization of the vehicles production to specific using conditions.
Degree of embed and economic affectivity: Results of scientific research established to production in “Avtonefttrans” ATE of Fergana oil process factory of “UZBEKNEFTEGAZ” Holding Company, in CSC “Angren Logistic Centre” also used in studying of “Construction and theory of automobile” subjects.
Approximately economical efficiency of established research results to production for each of the trucks is about 13 400 000 sum per year.
Sphere of usage: Auto transportation