Yeyilgan detallarni qayta tiklash va mustahkamlash texnologiyalarining samaradorligini taqqoslash

Ushbu maqolada yeyilgan detallarni qayta tiklash va mustahkamlash texnologiyalarining samaradorligini taqqoslash to’g’risidabatafsil ma’lumot keltirilgan

Quality Control of Radiotherapy for Determining the Absorbed Dose Rate in Various Environments for the Gamma Therapeutic Device Terabalt

This article presents the results of determining the absorbed dose rate in water for the gamma therapeutic device Terabalt in the Center of Nuclear Medicine and Oncology in Semey.Авторы выражают признательность руководству и сотрудникам Центра Ядерной Медицины и Онкологии города Семей (Республика Казахстан) за оказанную помощь при проведении исследования и подготовки данного материала. Авторы выражают благодарность Департамент технического сотрудничества, Международное агентство по атомной энергии за предоставленную возможность проведения данной работы

The Boltzmann equation for colourless plasmons in hot QCD plasma. Semiclassical approximation

Within the framework of the semiclassical approximation, we derive the Boltzmann equation describing the dynamics of colorless plasmons in a hot QCD plasma. The probability of the plasmon-plasmon scattering at the leading order in the coupling constant is obtained. This probability is gauge-independent at least in the class of the covariant and temporal gauges. It is noted that the structure of the scattering kernel possesses important qualitative difference from the corresponding one in the Abelian plasma, in spite of the fact that we focused our study on the colorless soft excitations. It is shown that four-plasmon decay is suppressed by the power of $g$ relative to the process of nonlinear scattering of plasmons by thermal particles at the soft momentum scale. It is stated that the former process becomes important in going to the ultrasoft region of the momentum scale.Comment: 41, LaTeX, minor changes, identical to published versio

Study on the precision of the multiaperture scintillation sensor turbulence profiler (MASS) employed in the site testing campaign for the Thirty Meter Telescope

The multiaperture scintillation sensor (MASS) has become a device widely employed to measure the altitude distribution of atmospheric turbulence. An empirical study is reported that investigates the dependence of the MASS results on the knowledge of the instrumental parameters. Also, the results of a side-by-side comparison of two MASS instruments are presented, indicating that MASS instruments permit measurements of the integrated seeing to a precision better than 0.05 arc sec and of the individual turbulence layer strength Cn2(h)dh to better than 10^−14 m^(1/3)

RESEARCH ON THE INTRODUCTION OF A DOUBLE-FACED IMPROVED COTTON SEPARATOR

This article analyzes the newly proposed, improved types of separator equipment for use in cotton processing plants and their working principles. Getting cotton out of the air without the negative impact on quality indicators, without reducing the fibers and seeds, while maintaining the natural properties of cotton in the air. The goal is to increase the efficiency of production by improving the quality of products of economic significance, increasing the effectiveness of separation of cotton from the airflow and eliminating existing deficiencies in the cotton plant

HANDLING AND DISPOSAL OF DRILLING WASTE

The article presents the environment, the impact on which in a natural way, its neutralization and disposal leads to a deterioration in the environment. Environmental measures for the collection, storage, transportation and disposal of waste generated during the construction of wells, cleaning the borehole area from scrap metal, construction waste and other waste. The types of work and methods carried out to protect soil and water bodies during drilling are presented

Application of Composite Fittings in Construction Future

 This article presents the advantages and disadvantages of using composite reinforcement in construction in comparison with traditional steel reinforcemen

Classification of seasonal dynamics of soil moisture according to satellite data Sentinel-2, Jizzakh region, Uzbekistan

Regular analysis of soil moisture is important for assessing the condition of soil fertility for adaptation to climate change, for the subsequent determination of the reasons for the deterioration of soil conditions, and for the preservation of sustainable agricultural development. Traditional field methods for studying land are laborious and costly. The aim of this scientific work is to develop an effective methodology for using Sentinel-2 satellite data to analyse changes in the condition of land moisture in the Republic of Uzbekistan, using the example of the pilot region under study in the Jizzakh region. The proposed methodology can be adapted in other regions for the effective monitoring of land resources. To conclude, the process of planning and organizing work on the conservation of crops is greatly simplified. It can be possible to save tens of thousands of hectares of highly productive land in agricultural circulation