Vol. 3 No. 02 (2021)

Thе prеssurе is rеlеаsеd, thе rаpidly rеducеd еxtеrnаl lоаd is cаrriеd аwаy by thе vоlumе оf thе pоrоus mеdium, which cаlls fоr thе еxpаnsiоn оf thе gаs еnclоsеd in thе pоrеs, sееking tо push аpаrt thе sоlid skеlеtоn. Duе tо this, аdditiоnаl tеnsilе strеss mаy оccur in thе sоil.

One of the ways to increase the efficiency of mini-hydroelectric power plants is the use of asynchronous generators in their composition, which have a number of advantages over synchronous ones. These advantages include low cost, simplicity of design and operation in normal modes, resistance to external accidents, and a significant resource. But asynchronous generators also have a number of disadvantages, in particular, the inability to regulate the voltage and the consumption of reactive power during the start-up of the unit, the negative effect of which on the distribution electrical networks significantly increases with an increase in the unit capacity of the unit. This article highlights work of asynchronous generator in the composition of mini-GES in autonomous mode.

In this article, information will be given about the possibilities of using the elements of robotics as a learning tool in physical education, lectures and practical classes on the subjects taught in the circle of robotics in the 8th grade of physical education. Also Arduino "STARTER"in the development of students' practical skills in robotics. Using the 12+ learning sets, the data on the development of students ' electronics and programming using the set are covered.

One of the important problems facing the architect is to create favorable acoustic comfort for the hall, which can be ensured by meeting the basic requirements architectural and construction acoustics, when developing a rational space-planning solution.

The research paper discusses the calculation and design of the space-planning solution of multipurpose hall located in the city of Navoi, which provides optimal natural acoustics.

This article gives the dependence for determining the depth of local erosion in the downstream of the Tuyamuyun hydroelectric complex, obtained by calculation and experiment. Based on the studies on the hydraulic model, correction factors are given to the formula for determining the depth of erosion in the lower pool of the hydroelectric complex. The graphs of the dependence of the coefficients К1, К2, K3 depending on the number of working holes, the levels of the upper and lower buffs.

In policy actions on further development of the Republic of Uzbekistan defines the task of “Improving industry to a qualitatively new level of deep processing of local raw materials, the acceleration of the production of finished products and the development of technology” One of those challenges is the use of stale tails Insistently factory ” in the form of raw materials of non-ferrous and rare metals that have accumulated in tailings Insistently factory. Its processing will significantly expand the raw material base without significant capital expenditures.

The extraction of tungsten from the stale tailings of processing plants and waste from metallurgical production is an urgent issue in the world practice of ore mining and processing of tungsten concentrates.

This article presents a comparative analysis of the main parameters of existing cultivators. The most widely used cultivators at a minimum and superficial tillage. Currently, there are a wide variety of cultivators, both domestic and foreign production, which creates certain difficulties in choosing a particular model. The aim of the study is to determine the most suitable cultivators for feeding their crops.

The article considers the material composition and mineralogical features of the section of the Jurassic sediments of the Sudochy deflection. The collection properties of sandy horizons were determined and associations of their minerals characterized by correlative features were established, which made it possible to determine the conditions for sedimentation of the studied sediments, as well as the areas and directions of the demolition of debris.

Cloud computing has become one of the loudest words in the IT world because of its design to deliver computing services as a utility. The typical use of cloud computing as a resource has changed the computing landscape. Increased flexibility, reliability, scalability and lower costs have attracted the attention of both companies and individuals due to the form of payment for using the cloud. Cloud computing is a completely internet-dependent technology in which customer data is stored and served in the data center of a cloud provider such as Google, Amazon, Apple Inc., Microsoft etc. Anomaly detection system is one of the intrusion detection methods. It is an area of the cloud environment designed to detect unusual activity in cloud networks. While there are various intrusion detection methods available in the cloud, this white paper explores and explores the various IDSs in cloud networks by different categories, and compares the security measures of Dropbox, Google Drive, and iCloud to clarify their strengths and weaknesses. in terms of security. 

This аrticlе dеscribеs thе history, imрortаncе, diffеrеncеs, dеvеloрmеnt аnd rolе of courtyаrds in thе dеvеloрmеnt of Cеntrаl Аsiаn аrchitеcturе. Рroblеms аnd solutions in thе fiеld of аrchitеcturе for thе rеstorаtion аnd rераir of courtyаrds in Cеntrаl Аsiа, thе еstаblishmеnt of dеfеnsivе zonеs in аll historicаl monumеnts.

Formulas for calculating the fluid flow rate in a well, the laws of pressure distribution in a straight radial motion in each zone in the horizontal and vertical directions.

The article discusses the issues of minimizing the size of microprocessors, their use in various spheres of human life, as well as in modern technologies such as micro drones, SIM-cards.

The article discusses the issues of improving productivity and quality when drilling non-technological holes in polymer composite materials. Systematization of non-technological holes was carried out, promising methods of drilling with varying cutting modes when inserting and entering the drill were developed and introduced into production, as well as a method of grinding outgoing chips and removing it and the cutting zone.

Purpose: The article describes a set of software developed for adaptive testing technology in the implementation of an objective assessment of students' knowledge. There is also information about the possibility of computerizing education, reducing the unproductive live work of teachers, preserving the methodological potential of experienced professors, installing computer software for management.

Methods: It is noted that the experiments were carried out by 2nd year students of the Andijan Machine-Building Institute in the direction of "Ground transport systems and their operation."

Results: The research results are presented in the form of some data by means of mathematical statistical processing. The Pearson, Kolmagorov and Romanovsky criteria were also used to check the accuracy of the study results.

Conclusion: it is stated that a software package aimed at creating a technology for remote and adaptive testing without the participation of the human factor will allow processing the results of experiments in educational and research centers and achieving them in practice.

The paper deals with the issues of hydroabrasive wear of hydraulic turbines of hydroelectric power stations that arise in the river water of suspended and bottom sediments. Sediments, accumulating on water conduits and regulating tanks, significantly complicate and worsen the operation of hydroelectric power stations. The results of the impeller of hydroelectric power stations and measures to combat intensive wear of hydraulic turbines used under difficult operating conditions are presented.

The article is devoted to the analysis of technology for cultivation of agricultural crops in case of the Republic of Karakalpkastan, and research results of MTA’s passage impact on the change of main physical soil features are provided. Along with this the structure and working principle of offered trace-loosen scratcher for «Magnum-8940» for soil loosening along tractor’s wheel tracks. The trace-loosen scratcher fairly suits the tractor “Magnum-8940”.

Geographic information technologies are new information technologies aimed at achieving various goals, including the informatization of production and management processes, not only for large-scale purposes but also for the regions of the Republic. In this article, it is possible to identify new achievements of geographic information systems in relation to the Fergana region.

This scientific article is devoted to the study of complexity theory for solving artificial intelligence (AI) problems and the classification of problems according to NP completeness. is similar to NP-complexity generation methods for boundary programming problems. It is wiser and more efficient to look for sufficiently accurate prediction algorithms than to find evidence that the problem in question belongs to the NP class and therefore wastes time. This scientific article provides a typical example that illustrates all algorithms.

Visual interpretation, which has long been the main method for interpreting remote sensing data, is laborious, not always effective, and sometimes impossible, for example, when examining images with a large number of spectral channels. In addition, it is difficult to visually recognize images of objects whose dimensions or the dimensions of their parts are on the border of the spatial resolution of the image. Therefore, it is advisable to use automated classification methods. However, the classification of space images by existing per-pixel methods implemented in standard software products for processing remote sensing data does not always lead to correct results.

In the article a one-boundary parabolic problem on determining moisture of raw cotton in a drum dryer is solved. Numerical results of the considered problem are taken on the method of Bubnov-Galerkin, they are compared with the experimental data. It is shown that the suggested mathematical model and its numerical algorithm adequately describe the process of drying of raw cotton. The stability of the approximate solution is set.