Science and Technology Other Topics

Maqolada hozirgi kunda neftni qayta ishlash korxonalaridan oqava suvlariga qo‘shilib chiqib ketayotgan neft maxsulotlarini ajratib oluvchi flotator ishi o‘rganilgan va kamchiliklari aniqlangan. Natijada oqava suvidan neft maxsulotlarini samarali ajratib oluvchi yangi texnologiya tavsiya etilgan va ishlash prinsipi keltirilgan.

Nasos-suyuqlikni bosim ostida so‘rish va haydash,gazlarni siqish yoki siyraklantirish,sochiluvchi jismlarni so‘rish va haydash uchun ishlatiladigan gidravlik, pnevmatik mashina yoki apparat hisoblanadi.Nasosning asosiy parametri-ma’lum vaqt ichida haydaladigan suv,gaz yoki havo miqdoridir, ba‘zan nasoslar uchun bosim,iste’mol quvvati ham muhim hisoblanadi.Nasoslar suv ta’minoti tizimlarida,neft chiqarish,neft mahsulotlari va gazlarni haydashda,kema va gidropress qurilmalarida va boshqa sohalarda keng qo‘llaniladi.

Ushbu moqola tarkibida 3d-metallari bo‘lgan {Ni(NO3)2•6H2O}x magnit suyuqlikning yopishqoqlik koeffitsientini kontsentratsiyasiga bog‘liqlik natijalari keltirildi.

Ushbu maqolada oliy ta’lim muassasasi talabalarining multimedia vositalari asosida ijtimoilashuvi hamda ularni ta’lim-tarbiya jarayonida qo‘llashning samarali usullari haqida fikr yuritilgan.

В процессе исследований по выявлению микробного разнообразия почв загрязненных территорий, расположенных в зонах разной степени удаленности от станции аэрации Бозсу в г.Ташкенте выделен штамм № 51, образующий синий пигмент, который окрашивает питательную среду на темно синий цвет.

Subjects of research: springs, methods and technological processes of restoration of cylindrical coil springs used in agricultural, land reclamation and construction machines, tractors, automobiles and manufacturing equipment.
Purpose of work: To upgrade the resource recovery technologies of cylindrical coil springs used in agricultural, land reclamation and construction machines, tractors, automobiles and manufacturing equipment.
Methods of research: Theoretical studies were performed using the basic tenets of the theory of mechanics, plastic deformation, heat balance and mathematical analysis, and an experimental study in the laboratory, laboratory-production and production conditions, using respectively test and measurement instrument.
The results obtained and their novelty: modernized the method and equipments for restoring springs arc derived to determine the dependence of processing modes in view of reducing the elasticity of the springs
Practical value: modernized method and arrangement and technological process for restoring springs.
Degree of installation and economic effectivity: research and technological process adopted for the implementation of the production process of "TashOR 'and the ICC Yukori Chirchik fog Tashkent region of the association" Uzagromashservis "and the learning process of the Tashkent Institute of Irrigation and Land Reclamation. Cost of restoration of valve springs is 664,73 or the sum of 33% of the cost of a new spring. The expected economic effect of the sum at 6454238 recovery program 5000 units per year. Payback period of investment is 2 years.
Field of application: Recommended for specialized repair services associations "Uzagromashservis" and repair shops of machine-tractor parks.

Objects of research: Object of investigation is groundytypc raw materials melon, primary processing and receiving melon juice and it’s concentrate by evaporation.
The purpose of work: Lowering of temperature and reduction boiling time of concentrate in vacuum - vapor mounting, keep biological value components of melon, preventing bum by preliminary removing solid insoluble components of melon, evaporate concentration of solid substance up to 60% and more.
Methods of research: Mathematical modeling and optimization, physical and chemical methods of many factor experiments.
The received results and their novelty: It is experimental investigated physical parameters of melon, necessaries for conducting of calculation in deep processing. It is developed primary work of technology, preparation main components juice to vapor. By mathematical planning of experiments is developed optimal parameters of considering process on basis complex quality indicator receiving of melon juice.
The practical value: It is receiving universal model and programmical ensured receiving analytical and experimental models, serviceable to usage in practical activities during melon processing in proposing line; it is developed account methodics hydromcchanical fractioncring of melon pulp in field of centrifugal force, vaporing of fugate in four-corps mounting, it is investigated regime of exploitation effective device. It is used MATLAB programm and it’s part SIMULINK, also MATHCAD for carrying out principle of synthesis procedure decision of conversing task, based to using artificial ncyrone-nct task.
Degree of embed and economic efficiency: The developing scheme device fractional processing of melon juice, it is accepted for realiziation in primary processing workshop of melon of Uzbek-Turkish JV “EL KOL” in Yangiyol region, conducting practical works on inculcation in production with firm “MS NATURAL PRODUCTS”. Expecting economical effect from inculcation of results in production with productivity by raw materials 10 tn/h, achieve in average 72,33 mln sums.
Field of application: Canned industry.

In this article, classification of composite materials, current methods of production of composite materials, their advantages, materials for them, and development of production of composite materials in our country.

The scientific state of the art provides for optimal use in research to reduce  the energy consumption of industrial buildings. A method of reducing energy costs for lighting buildings by providing natural lighting to industrial buildings through the use of a natural lighting system on the territory of the Republic of Uzbekistan. The analysis of the building's natural lighting indicators was carried out on the basis of the regulatory document ҚМҚ 2.01.05-19 “Табиий ва сунъий ёритилиш” .

Формирование профессиональной компетенции студентов реализуется в процессе прохождения педагогической практики в образовательных учреждениях. В системе подготовки будущего учителя иностранного языка педагогическая практика является системообразующей составляющей их профессионального становления.

В статье приведены результаты экспериментального исследования характеристик теплообмена между тепловым агентом и сухими частицами волокнистого материала. Учитывая то, что при фильтрационной сушке в слое находится одновременно сухой и влажный материалы, которые принимают участие в теплообмене, необходимо исследовать процесс теплообмена между сухими и влажными частицами волокнистого материала.

Subjects of research: associative switching system structure, associative switching system networks, associative switching and routing, their models and design methods
Purpose of work: research and design of switching node models and designing methods of the broadband multilevel N-dimension associative switching networks.
Methods of research: researches based on algebraic system of associative switching, probability theory, queueing theory, group theory, z-transform methods, matrix algorithms, parametric analysis of time-probabilistic characteristics and network stricture optimization.
The results obtained and their novelty: associative switching fabric model based on group theory with alphabet A and substitution system F; switching task solution in the network modules of the associative switching system is represented as multiplication operation of multiplicative algebraic substitution group of matrix elements in RAM and program memory (function domain of Neighbourhood Single Radius NSR); analytical models of associative switching system of the ring and star structures.
Practical value: Formulas for practical design of associative switching system arc obtained. Formulas allow to choosing associative switching system parameters according specified requirements and initial data. It’s defined associative switching fabric application in switching systems have more higher performance in comparison with traditional switching systems.
Degree of embed and economic cffcctivity: results have been implemented to JSC “Uzbektelecom” and into educational program of Tashkent university of information technologies TU1T.
Field of application: dimension, design, realization of associative routing and switching mechanism for access and transport telecommunication networks.

Ҳомилани пренатал ривожланиш даврининг динамик маълумотларига ишлов бериш орқали рационал озиқланиш тизимининг умумий модели келтирилган. Ҳомиладорлик даври 3та триместрга ажратилади.  Ҳомиланинг ривожланиш даврида таъсир кўрсатувчи озиқ овқат маҳсулотлари ва витаминлар таркиби меёрлари нормаларидан ҳомиладорнинг холатига мос равишда озиқланиш холати тизимли тахлил этилади.

The flow model of the crushing and crushing equipment is important because it allows the stone material to slide down through the crushing chamber. The crushing or crushing characteristics were achieved by testing the rock based on spring compression during crushing under controlled conditions. The input data (CSS) includes parameters such as speed, stroke, camera geometry, distribution of transmission values and mechanical properties of the material. The performance of a traditional cone crusher, which shows the performance for ore of various products. The nominal design of the conical crushing and crushing equipment is made. At this stage, it is possible to calculate a set of nominal parameters characterizing the chopper chamber. The nominal stroke and layer thickness are determined at each point of the chamber cross section. The same material was used in modeling and field tests. After each compression test, the material was screened. Distribution of the sizes received at each check. A selection function with two variables adapted to experimental data. b) functional representation in 3D. Normalized crushing of the porphyry material under study. b) the crushing properties of quartz and porphyrite were compared.

Ushbu tezisda mikroorganizm shtammlarini saqlash toʻgʻrisida maʻlumot berilgan. Bakterial shtammlarni 5 xil usul bilan saqlashimiz mumkin.

Статья раскрывает проблем, сявзанных с методикой обучения математики. В статье анализировано проблемы обучения и образования, их закономерности, принципы, цели, содержание, средства, организация, достигаемые результаты. А также анализируется проблема влияния дидактики на педагогическую практику. Показаны также примеры обратного влияния — педагогической практики на развитие дидактического знания. Основными методами исследования являются анализ дидактических концепций, их соотнесение с решениями, принимаемыми в системе образования, описание инновационных практик в дидактическом ключе, логически выстроенные умозаключения, позволяющие охарактеризовать специфику взаимосвязи дидактики и педагогической практики на современном этапе развития социума. Автором предложены методы исследования которые являются изучением и анализом существующих дидактических концепций, их соотнесение с основаниями принятия решений в системе образования, выяснение влияния на практику, описание инновационных практик в дидактическом ключе, логически выстроенные умозаключения, позволяющие охарактеризовать специфику взаимодействия дидактики и педагогической практики в настоящее время

Maqolada o‘quvchilarning axborot kompetentligini rivojlantirishning metodik jihatlari oʼrganilib, ishchi taʼrif qabul qilingan. Axborot kompetenligini rivojlantirish jarayonini mustaqil hayotiy faoliyat davomida axborotlar bilan ishlash kabi yondashuv asosida tashkil etish boʼyicha metodik tavsiyalar ishlab chiqilgan

В статье рассматривается стандартного описание рабочих мест для решения проблем алгоритмизации управления сложными системами. Предлагается описание процесса решения задачи управления объектом на основе алгоритмического подхода. Разработаны методы композиции ТФ для алгоритмического синтеза комплексов рабочих мест, управляющих мониторов.

The topicality and significance of the subject of dissertation. Experts by Synergy Research noted that the total market volume of neural networks by 2005 exceeded 10 billion, dollars, in 2014 the volume of cloud services amounted to more than 17 bln. dollars, an increase of 45% year of calculus1. Also, in the first quarter of 2015 the market volume of services designed to deploy cloud infrastructures, exceeded $ 5 billion., where the share of Amazon Web Services was 29%. Due to the dynamic increase in sales of cloud services in January-March 2015 Google's revenue increased by 74%, IBM - by 56%, while revenues Salesforce.com rose by 34%. Thus, in 2018 the market of public cloud services will take place an investment of $ 127.5 billion., And their size by this time will be increased by an average of 22.8% per year, which is six times greater than the projected growth of global IT-market2.
Determination of hidden patterns, data classification, prediction of processes, as well as analysis of the studied process for large volumes of data and in terms of their uncertainty arc the main tasks of data mining. For complex, weakly formalized processes with fuzzy nestohastichnostyu and incompleteness in the source of information and situations of internal and external environment, not usually given the opportunity to build simple adequate mathematical models. Information about the parameters of such processes is usually expressed by experts in the form of words and sentences, ie, in linguistic form. In such cases, the simulation, decision-making and management tools appropriate to use the technology of soft computing (Soft Computing).
The hybrid system obtained by combining the components of soft computing technologies - fuzzy logic, neural networks and evolutionary algorithms, will have the same intellectual property as the application of knowledge in natural language. In this regard, the development of algorithms and software for generation of fuzzy models of classification tasks, assessment, forecasting and decision-making based on fuzzy inference rules, neural networks and evolutionary algorithms is an actual problem.
Therefore, there is a need to develop methods and algorithms for solving data mining, ie the tasks of building fuzzy models classification, estimation and forecasting on the basis of fuzzy clustering, configuration parameters of the model using neural networks and evolutionary algorithms and fuzzy multi-criteria optimization that occurs when building the model.
This dissertation research is aimed at solving the tasks set by the Law of the Republic of Uzbekistan «On electronic government » for the № LRU-395 of December 9, 2015, Decrees of the President of the Republic of Uzbekistan «On measures to further the implementation of information and communication technologies in the real economy» for the № DP-2158 of April 3, 2014, «On measures for further development of national information and communication system of the Republic of Uzbekistan» for the № DP-1989 of June 27, 2013, and the Resolution of the Cabinet of Ministers «On measures for the formation of the central database of individuals and legal persons and implementation of a unified information system to identify users of the system «Electronic Govcmmcnt»»for № 365 of December 17, 2015.
The purpose of research is to develop hybrid methods and algorithms for building models intelligent analysis of weakly formalized processes based on the method of fuzzy clustering, setting the parameters of these models with the help neural networks and evolutionary algorithm of a bee swarm.
Scientific novelty of the results of the dissertation is as follows:
proposed hybrid the methods of construction of fuzzy models intelligent analysis of weakly formalized processes;
an algorithm for constructing a fuzzy logic model intellectual analysis -classification, estimation and forecasting of weakly formalized processes based on the method of fuzzy clustering;
the possibility of obtaining fuzzy solutions in the construction of the fuzzy logic model classification, evaluation and forecasting of weakly formalized processes based on the settings parameters of the model neural networks for different membership functions;
the possibility of obtaining fuzzy solutions in the construction of the fuzzy logic model classification, evaluation and forecasting of weakly formalized processes based on the settings parameters of the model of algorithm of a bee swarm for different membership functions;
it formed a multicritcria optimization problem in the conditions fuzzy information and developed an algorithm to solve this problem;
develop criteria and algorithms for solving optimization problems and decision-making with fuzzy initial information, proved several assertions about the properties be improved solutions in terms of membership functions;
developed the technology constructing adequate fuzzy model based on hybrid methods of intellectual analysis of weakly formalized processes
CONCLUSION
Analysis of the main results of the thesis allowed us to make several conclusions.
1. A systematic analysis of the problem of constructing models of fuzzy classification problems, estimation and forecasting in weakly formalized systems, as well as the urgency of the development of methods for their solution.
2. On the basis of mathematical analysis shows that important to ensure the adequacy of the model, that is, how to properly use the current information about the subject of research in the modeling process.
3. Analysis of the fuzzy multi-criteria optimization problems generated by the construction of fuzzy model predictive analysis of poorly formalized processes, allows us to solve the problem of multicritcria optimization, resulting in the construction of classification models, estimation and forecasting processes in a fuzzy information.
4. An algorithm for constructing a fuzzy model predictive analysis of the process allows us to solve the problem of classification, estimation and forecasting processes in weakly formalized and the nature of the uncertainty of information about them.
5. The experimental studies have shown a higher efficiency of the developed algorithms in comparison with known algorithms for solving model problems classification, estimation and forecasting.
6. Analysis of the results obtained in the construction of classification models, estimation and forecasting of mining processes in the states of fuzzy information based on fuzzy clustering method showed that the fuzzy approach makes it possible to obtain adequate fuzzy decision based on any a priori information and the level of certainty.
7. Determine the properties be improved for solving the problem of fuzzy multi-criteria optimization, formed by the construction of fuzzy model, and this property contributes to obtaining effective results in addressing a number of practical problems.
8. The possibility of obtaining effective solutions for solving practical problems of classification, estimation and forecasting based on the development of algorithms for constructing models of mining state weakly formalized processes.

Ushbu maqolada oliy ta’limni boshqarishda qo‘llaniladigan metaloyihani amalga oshirishning asosiy bosqichlari o‘rgabilgan.

Subjects of research: the subjects of this study are waves in porous media with complex reology, the mathematical modeling of dynamic processes of propagation of one-dimensional SH-waves, and also the investigation of the obtained in this study direct and inverse problems.
Purpose of research: the purpose of the thesis are the mathematical modeling of dynamic processes of propagation of SH-waves in which mathematical models are constructed, studying the nature of solution, existence and uniqueness of the solution to obtained in this study direct and inverse problems, the development of numerical methods for solving the problems and programm.
Methods of research: we use mathematical modeling methods, the method of characteristics for hyperbolic systems, the method of integral equations, finite difference methods, the conjugate gradient method, and programming technology.
Results obtained and their novelty: the following results are new:
- derived mathematical model of SH-wave propagation in elastic-porous media;
- constructed singular solutions of SH-wave propagation in elastic-porous media;
- a system of nonlinear Volterra integral equations of the second kind for the dynamic inverse problems for SH-waves in elastic-porous media;
- uniqueness theorem and a "in small" existence of a solution of inverse problems considered, as well as the continuous dependence of solutions to inverse dynamic problems on input data;
- developed numerical method and created program for the numerical solution to the direct and inverse problems for SH-wave propagation in the elastic-porous media.
Practical significance: the results can be used in a broad class of studies of various natural and technological processes.
Degree of embed and economic effectivity: the results may form the basis of special courses on the subject of mathematical modeling for senior undergraduate and graduate students.
Field of application: the results can be used in seismology and in the development of oil and gas deposits.

В статье анализируется образовательный потенциал математического моделирования как эффективной технологии формирования универсальных компетенций у студентов бакалавриата.

Subjects of research: low-frequency digital signals, and architecture of digital signal processors.
Purpose of work: To develop high-speed signal processing techniques to be submitted in the form of an algebraic polynomial on the basis of the signal spectrum, and their software implementation on modern signal processors.
Methods of research: a theory of functional analysis, spectral analysis in the Fourier bases, methods of calculating polynomials and elementary functions, theory of numbers and matrices.
The results obtained and their novelty: A method for transforming the signal in the area of polynomial representation, and finding the polynomial coefficients using the spectral approach, the algorithms and software for polynomial signal processing using digital signal processors; the qualitative characteristics of the developed algorithms was examined, A polynomial approach for calculating the biosignal parameters and to solve the problems of compression and audio signals smoothing.
Practical value: The algorithm for calculating the coefficients of algebraic polynomials, a set of digital signal processing was established applications, developed applications are protected by the Patent Office evidence of the Republic of Uzbekistan.
Degree of embed and economic cffectivity: the basic theoretical and practical results of the thesis inculcated in the Institute of Physiology and Biophysics, Academy of Sciences of Uzbekistan and Institute of Microelectronics, as well as embedded in the learning process at the Department of «Computer Systems» Tashkent University of Information Technology. The total economic effect is 10 million sum in a year.
Field of application: the thesis methods, algorithms and software designed in dissertation work can be used in medicine, biology, geophysics, ecology, seismology, speech processing and audio signals.