OAK jurnallaridan yig‘ilgan 104809 ta ilmiy maqola: sarlavha, mualliflar, annotatsiya, kalit so‘zlar, DOI va tayyor iqtibos formatlari.
In this study, inulin derivatives containing acidic -COOH groups in their structure were synthesized. To obtain inulin derivatives, the polysaccharide was initially halogenated using thionyl chloride. Samples with…
Complex compounds of uranyl ion with 2-amino-1-methylbenzimidazole (MAB) and diethyldithiocarbamate (DEDTK) were synthesized and studied. The composition and structure of the resulting complex compounds were established…
This article analyzes the preparation of aqueous emulsions from nonstoichiometric interpolymer complexes (NIPCS) based on urea-formaldehyde oligomers (CFO) and the sodium salt of carboxymethylcellulose (Na-CMC) and the…
The article discusses specific aspects, methodological approaches, content and significance of the principles of “Green Chemistry” in a new educational course Сhemical ecology, developed for the field of chemistry of…
The article synthesizes new monomers based on citric acid – acrylamido-N-methylene citric acid (AA-N-MLK) and acrylamido-N-citric acid (AA-N-LC). The structure of the obtained monomers was identified using various…
Determination of strontium-90 content in soil samples by performing calculations through its daughter radionuclide yttrium-90 is the most accurate method, but also requires a lot of time for analysis. A technique is…
In this work, Al3+- modified LiAlxMn(2-x)O4 was synthesized by the sol-gel method with the partial replacement of manganese in the spinel LiMn2O4 oxide phase with Al3+. The characteristics of LiAlxMn(2-x)O4 (0 ≤ x ≤…
This article describes the optimal conditions for the growth of microalgae and the composition of nutrient media. Microalgae, as their name suggests, have unicellular and multicellular microscopic states and have…
Based on waste from the production of thiourea, new products with ion-exchange properties were obtained. It has been established that when melamine-containing waste is mixed with urea-formaldehyde resin and heat…
1-(2-piridilazo)-2-naftol bilan rux, kadmiy va qo'rg'oshinning kompleks birikmalari sintez qilindi va tadqiq qilindi. Olingan kompleks birikmalarning tarkibi va tuzilishi ICP-OES, rentgen-fluoresent tahlili, energo…
We know that today the processing of industrial waste and turning it into finished products is one of the most important tasks. The article notes the treatment of liquid waste from the Kungrad soda plant using…
The article provides information about navigational system GPS and GLONASS applicable when making the state geodetic supporting network. The Requirements to receiver companion (satellite) for performing on making the…
Maqolada distansion usul orqali yerning tuzilishi va geodinamikasi o‘rganiladi. Geofizik usullar yordamida xalqasimon tuzilmalarning xaritalari tuzilib ularni zilzila o‘choqlari xaritasi xamda geofizik maydonlar bilan…
The article examines the formation, settlement and factors affecting human settlements. It is argued that in the socio-economic development of settlements, its geographical location, horizontal and vertical location is…
The republic is implementing comprehensive measures to actively develop the digital economy, as well as the widespread introduction of modern information and communication technologies in all sectors and spheres…
In this article, what factors influence the nosogeographical situation of Tashkent region and their analysis is presented. Some aspects of population morbidity indicators of the region are highlighted. The state of…
Industrial development not only leads to economic growth of the country, but also affects the geo-ecological situation. Based on this point of view, it should be studied and assessed in order to identify natural and…
In the article, the role of the relief structure in the stratification of the natural components of the current Amudarya delta was evaluated for the first time. On the basis of our research, the systematic…
The article examines the problems of efficient use of land resources of the catchment basins in the irrigated areas of the current Amudarya delta. In the current delta of the Amudarya, there are several catchment…
The article presents the results of field tests of a new corrosion ingibitor developed to protect equipment and communications located in environments with high salt mineralization, containing carbon dioxide, oxygen…
The study reflects the results of the mineralogical and petrographic characteristics of ore rocks in the North Karabugut area of the Auminza Mountains in Central Kyzylkum. It is noted that the overlying rocks are…
The mining industry includes industries engaged in the extraction of minerals from the subsoil and the primary processing of extracted ores, which is the final link in the production of a product used for the…
In the article, the authors summarize and analyze the currently existing studies on loess and loess-like soils with subsidence properties that cause uneven precipitation of buildings and structures. At the same time…
На основе данных многих скважин, собранных за последние годы, в статье освещаются результаты изучения специфических литологических, петрографических, стратиграфических и фaциальных особенностей отложений палеогенового…
The article analyzes samples taken in the Nazarbek, Tekistil, Fozilov and Sabzavotchilik (IBK) wells, located in the Tashkent geodynamic range, and shows the change in the amount of fluorine in groundwater during…
This article presents a comprehensive study of the Akba site in Uzbekistan, focusing on its geological structure, ore-containing rocks, and the economic feasibility of gold mining operations. Through a multidisciplinary…
The authors of the article consider the geological, hydrogeological conditions of groundwater pollution sources in the Samarkand region, analyze the structure of the economic activity of the region and its components…
The paper is devoted to the role of discontinuous structures in the formation of the Marjanbulak ore field and the placement of gold mineralization in its geological space. The history of the origin and development of…
The demographic composition of the population of a certain area and the formation of its employment situation is a historical process that is formed as a result of the natural conditions and economy of the area over a…
В статье основное внимание уделено выявлению роли формирующегося южного транспортного коридора в повышении международного геоэкономического и геополитического потенциала Узбекистана, а также в укреплении его…
In the article, the changes in the population dynamics of the cities of the Mirzachol economic region, the territorial aspects of their structure, the specific characteristics of the demographic development of the…
In this scientific work, the structure of information support was developed and a data bank was created for the complex multipurpose use of information in the preparation of a geofiltration model (using the example of…
Systematic analysis of certain deposits and ore occurrences in the Middle and South Tien Shan, in the result determine plenty of difference mineralogical regions and reporting units, concentration level of ore fields…
Sustainable development of landscapes, factors affecting the development of landscapes, Development Trend, Methods of Landscape Research, Dynamics of development of Geosystems and trends in the development of landscapes…
To study the features of development of small business and private entrepreneurship, which is an important branch of the economy of our republic, and to assess its territorial aspects. Analysis of existing territorial…
Population health and disease indicators directly depend on natural, economic and social conditions, especially the ecological situation of the environment. Especially today, in large cities, including Tashkent, a…
This article briefly describes the hological structure of the Vaudil site located on the territory of the Fergana region, and the main emphasis is placed on the composition of the coal seams located on the site, what…
The study carried out mapping of three lakes located in the Southern Aral Sea region. For the study area, satellite images from the United States Geological Survey (USGS) research center and the European Commission…
The Zarkainar intrusion is composed of S-type granitoids (quartz-diorite, granodiorite, biotite granite, etc.), formed due to sedimentary- metamorphic rocks as a result of plate collision. Most of it is composed of…
In the article, the paragenetic landscape complexes in the basins of the collector drain-1 (KT-1), (KT-3) and (KT-4) on the right bank of the current Amudarya delta were considered for the first time based on the relief…
The methodology of geological-economic assessment of natural conditions includes the following: development of basic principles and rules for assessing the complexity of natural conditions in areas of complex…
The article discusses the purification and neutralization of wastewater from aeration plants (Republic of Uzbekistan) by a physical method, using ultraviolet radiation of wastewater after mechanical and biological…
The work outlines the main features of earthquakes. The example of catastrophic earthquakes around the world shows the number of victims and their consequences. Data is provided on the Tashkent earthquake of April 26…
Using the example of the mountain zone of the Republic of Uzbekistan, the article discusses theoretical issues of studying the population of mountain territories, the forms of population settlement inherent in mountain…
In the article, for the first time, the relation of the soil cover structure of the Amudarya delta with the relief elements was analyzed based on the relief plastic method. On the basis of a large-scale relief plastic…
The studied area is located in the Bokantov mountain massif of Central Kyzylkum. The main part of the territory is occupied by Kokpatas mountains and partly by Jemditau mountains. From the north-west and south-west they…
The article presents criteria for predicting the composition of hydrocarbons in the study of gas and condensates of the Ustyurt oil shale, which is considered one of the main regions of Uzbekistan, based on a…
In this study, the effect of melioration systems on the hydrological regime of underground waters in Kyziriqdara section of Surkhandarya region, changes in their regime over the years and seasons, and their influence on…
As part of the study of Jurassic and Paleozoic deposits of the Northern Urga area, a comprehensive analysis of geological and geophysical information on wells (lithological description of the core, laboratory…
Uzbekistan is in seventh place in the world in terms of uranium reserves and fifth in its production. The country is not a consumer of uranium products and all uranium produced is exported. Until recently, the Navoi…