48 research outputs found

    The Activity of the «Think Tanks» of the PRC: Problems and Current Situation

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    The article deals with the issues of Think tanks activities of Chinese People’s Republic and their role in decision-making process. The main activities of the Think tanks, their goals and objectives have been analyzed. The opinions and conclusions of Chinese experts on modernization of analytical centers have been regarded

    ОБРАЗОВАТЕЛЬНАЯ И ДУХОВНО-ПРОСВЕТИТЕЛЬСКАЯ ДЕЯТЕЛЬНОСТЬ ТАШКЕНТСКОГО ИСЛАМСКОГО УНИВЕРСИТЕТА

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    Educational and spiritual activity of Tashkent Islamic University.Образовательная и духовно-просветительская деятельность Ташкентского исламского университета

    Discussion of different Remote sensing satellite possibilities for scientifical Earth observations

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    More than 1,000 satellites are launched into space, and they differ in their functions, rotation orbits, resolution, and other properties. Scientists divide the satellites into low-resolution, medium-resolution, high-resolution, and very high-resolution satellites by their properties. Now, the biggest challenge facing scientists is to use some of these different resolution images in their field. To get the expected result, it is very important to analyze the image that needs an which gives more accurate results. Therefore, the main attention of this article is aimed to find the answer to these problems. In this article 3 satellite images which have different resolution are analyzed. The possibility of middle-resolution images of MODIS, high-resolution images of Landsat, and very high-resolution images of WorldView-2 (WV-2) satellites using GIS are analyzed. A research area was the Syrdarya region, and downloaded different images of satellites of this area and compared with using e Cognition. According to the results, a more accurate satellite image for irrigation sets information is WorldView-2 images. In comparison analysis, it shows more accurate properties than other satellite images. As irrigation sets are small objects for the analysis, very high spatial resolution satellite images are important. Water discharge and surface change happen very fast; thus, it requires daily monitoring of the condition. And in this case, the temporal resolution of the MODIS and Landsat is 16 day, and it is a too long period

    Quantitative detection and attribution of groundwater level variations in the Amu Darya Delta

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    In the past few decades, the shrinkage of the Aral Sea is one of the biggest ecological catastrophes caused by human activity. To quantify the joint impact of both human activities and climate change on groundwater, the spatiotemporal groundwater dynamic characteristics in the Amu Darya Delta of the Aral Sea from 1999 to 2017 were analyzed, using the groundwater level, climate conditions, remote sensing data, and irrigation information. Statistics analysis was adopted to analyze the trend of groundwater variation, including intensity, periodicity, spatial structure, while the Pearson correlation analysis and principal component analysis (PCA) were used to quantify the impact of climate change and human activities on the variabilities of the groundwater level. Results reveal that the local groundwater dynamic has varied considerably. From 1999 to 2002, the groundwater level dropped from -189 cm to -350 cm. Until 2017, the groundwater level rose back to -211 cm with fluctuation. Seasonally, the fluctuation period of groundwater level and irrigation water was similar, both were about 18 months. Spatially, the groundwater level kept stable within the irrigation area and bare land but fluctuated drastically around the irrigation area. The Pearson correlation analysis reveals that the dynamic of the groundwater level is closely related to irrigation activity within the irrigation area (Nukus: -0.583), while for the place adjacent to the Aral Sea, the groundwater level is closely related to the Large Aral Sea water level (Muynak: 0.355). The results of PCA showed that the cumulative contribution rate of the first three components exceeds 85%. The study reveals that human activities have a great impact on groundwater, effective management, and the development of water resources in arid areas is an essential prerequisite for ecological protection

    Irrigation network extraction in arid regions with using worldview-2 satellite data

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    After the 2000s, the launch of very high-resolution satellites provided great water and irrigation network management personnel opportunities. Now, the water management staff have the opportunity to study and monitor water supply systems and exploitation conditions of irrigation systems remotely via satellite imagery. By using those satellite images, specialists can search for water bodies, detect defected place of irrigation systems, and monitor their technical condition. Another advantage of satellite imagery is that they capture large areas of the Earth, keeping water systems under control in large areas. Therefore, the use of very high-resolution images has greatly developed in the water branch since the 2000s. The creation of different water extraction methods, models, indexes, and using different layers in the analysis for different regions using different satellites with very high resolution is developed. These indexes and layers are so numerous that they are now over 100. The user has difficulty getting any of them in the analyzes. Therefore, in this article, we have studied more than 50 water extraction methods, which gave positive and accurate results in an arid region. From those 50 methods, separated 10 the most effective methods and tested with WorldView-2 image analysis in the arid region and the water-rich region of Syrdarya region. According to the results of the analysis recommend the highest accuracy method for arid areas. Results show that water extraction using NIR2 layer of the WorldView-2 satellite images is the most accurate method than other methods. The accuracy of the results was 94 %. The analysis found the irrigation systems filled with sand and vegetation

    LASER RADIATION AS A WAY TO CONTROL THE ANALYTICAL PARAMETERS OF FIELD ASYMMETRIC ION MOBILITY SPECTROMETER FOR DETECTION OF EXPLOSIVES IN VAPOR PHASE

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    In this study we compare a radioactive 63Ni ionization source with a laser ionization source and reveal the parameters of laser ionization of TNT, RDX, HMX and PETN which can lower the limit of detection of portable devices. We also determine nonlinear ion mobili-ties at different conditions.Работа выполнена в рамках финансируемого РФФИ (Российский фонд фундаментальных исследований) проекта № 19-32-90280

    UZBEKISTAN-GERMANY: PECULIARITIES OF JUVENILE LIABILITY AND THE SYSTEM OF PUNISHMENT

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    <p><i>in this article, the Criminal Law of the Republic of Uzbekistan reflects the system of punishment assigned to minors, the rules of sentencing, cases of exemption from liability and punishment. The criminal law of the Republic of Uzbekistan and the Federal Republic of Germany also touches on the peculiarities of juvenile liability, the system of punishment and some similarities and differences between them. </i></p&gt

    A Vision of India’s Afghan Policy: Challenges and Strategic Choices

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    This article analyzes the interests and policies of India in today’s Afghanistan and examines the challenges in front of New Delhi as well as strategic choices. The article discusses the strengths and weaknesses of India in this regard, its opportunities and threatening issues.

    Anti-erosion technology of potatoes irrigation on typical Chirchik-Angren valley serosemes

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    The article deals with the results of the analysis of long-term studies on the study of soil-protective, water efficiency technologies for the cultivation of crops on eroded soils. For the conditions of irrigated and erosion impacted typical loamy soils of a Chirchik-Angren valley, the law of a pliability of the typical loamy soils impacted by erosion is revealed depening on the form of furrows and the size of a jet. The optimum forms of the furrow and size of a jet are determined for condition of typical loamy soils at growing potatoes. The influence of the form of furrow on the contents of organic matter, total nitrogen, common phosphorus in a liquid and firm drain is established the losses of nutritious substances with a liquid and firm drain are revealed depending on elements of irrigation technology. The growth and development of the potatoes is studied. The economic efficiency is determined at cultivation of a potatoes on typical erosion demaged loamy soils
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