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Бюллетень науки и практики @bulletennauki
Статьи журнала - Бюллетень науки и практики
Все статьи: 6432
Model of a microchannel heat exchanger of a supercharger for heating water
Статья научная
The subject of the research is a model of a microchannel heat exchanger of a supercharger for heating water. The purpose of study is to simulate the heating effect of microchannel heat exchangers for heating water and to evaluate their effectiveness in practice. Research methods: comparison, synthesis, modeling, description, experimentation, graphical analysis. As a result of the study, the prerequisites for the energy conversion of the microchannel heat exchanger, the heating unit, the energy conversion unit, and the biofuel storage unit were considered and put together. The degree of implementation is complete. Efficiency of development - in order to enhance energy use and reduce losses in energy use, thereby protecting the environment and saving energy.
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Modeling of morphological analysis and synthesis of word forms of the natural language
Статья научная
This article discusses the modeling of morphological analysis and synthesis of the Kyrgyz language. Models of creating word forms and rules for connecting affixes to the base of a word are considered. As a result of studying the structure of natural language, a algorithm of module was created that performs automatic morphological analysis and synthesis of word forms on a personal computer.
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Modeling of the organic Rankine cycle based on the theory of energy chains
Статья научная
This paper examines an experimental setup of an organic Rankine cycle and proposes a method for describing it using differential equations. The aim of the work is to obtain approximate values of the setup's characteristics before conducting the experiment. The constructive scheme of the experimental device and its operating principle are described in detail. The power circuit of the setup is composed, and complex impedance, frequency function, amplitude-frequency, and phase-frequency characteristics are obtained based on the mathematical transformation of the circuit. The frequency response of the circuit is constructed. As a result of the calculations, the amplitude-frequency and phase-frequency characteristics are obtained, and graphs are plotted based on them. Conclusions are drawn about the dependence of the characteristics on the change in parameters, and the shape of the graphs is explained. The results of the work can be used to predict the behavior of the experimental setup of the organic Rankine cycle and optimize its parameters before conducting physical experiments.
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Modern aspects of etiology, mechanisms, pathogenesis and diagnostics of ovarian formations
Статья обзорная
This review focuses on ovarian lesions. Ovarian tumors occupy the 3rd place among all tumors of the female genital organs, and 7th in the overall structure of malignant tumors, so the problem of timely diagnosis and treatment of ovarian lesions remains relevant. The share of benign ovarian tumors accounts for 70-80%. Among benign ovarian lesions, epithelial lesions are most common - tatami up to 16% and cystadenoma up to 22.8%. Histogenesis of ovarian formations is not fully understood, which explains the contradictions in the origin of a particular tumor. For the first time, features of the mechanisms of neoplasm formation have been described by A. Knudson et al., his team was one of the first to develop and publish the theory of ‘double strike’, interpreting the mechanisms for implementing sporadic and hereditary forms of neoplasms. Ovarian cancer - both on the part of the etiology and the clinical picture of a heterogeneous genetically determined pathology. The basis of the emergence of this group of tumors is the mutation of the genetic apparatus of the cell...
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Modern challenges in health and safety at construction industry
Статья научная
A part of the research on the impact and interrelation between human factors and the safety of the working environment in the construction sector is presented. Labor in construction companies is often associated with a high risk of injury and, therefore, occupational safety is an important element of production efficiency in this area. The injured workers lost working days and financial costs affect the social and economic efficiency of the construction industry. Statistics indicate that occupational health and safety for modern research are current issues. Economic reforms in Uzbekistan envisage the creation of favourable and safe working conditions. From this point of view, ILO standards (Health & Safety) are really relevant for research and implementation in the construction industry of Uzbekistan. The purpose of this article is to analyze the implementation of best practices in the construction industry of Uzbekistan.
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Modern comparative characteristic of mountain meadow soils in Azerbaijan
Статья научная
The northeastern slope of the Lesser Caucasus occupies a large territory in the western part of Azerbaijan. One of the most widespread soils in Azerbaijan is mountain meadow soils. The purpose of the research is a comprehensive and comparative study of morphodiagnostic parameters, physicochemical properties and biochemical activity of natural and anthropogenically modified biogeocenosis of mountain meadow soils of the Gadabay District. Some results of many years study are described in the article. Villages like Gara Murad, Kichik, Garamurad, Saratovka and others were researched. The research was carried out on virgin soils and cultivated lands in villages. A total of 15 land plots have been allocated, some of the research results are presented in the article. Carrying out numerous agro-reclamation activities, we managed to attract uncultivated land to agriculture and obtain high-quality products. The groundwater level in these areas exceeds 2 meters, and the salinization processes are active. Comparative results from all these agro-chemical studies helped to get virgin soils into agriculture in the plains and achieve high productivity. This can be invaluable literary material for a new generation of soil scientists.
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Modern construction industry of Uzbekistan: trends, problems and prospects
Статья научная
The article describes some specific features of construction industry in Uzbekistan. Presented a study of trends in development of the construction industry in Uzbekistan over the past few years, as well as the impact of growing population on need for investment in construction.
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Modern diagnostic opportunities for detecting non-alcoholic fatty liver disease
Статья обзорная
This article is devoted to non-alcoholic fatty liver disease (NAFTLD), more precisely to the modern possibilities of diagnosing non-alcoholic fatty liver disease. Today, the world practice of studying diseases is characterized by a multifactor approach, in particular, it concerns pathologies, the basis of which is a cascade of metabolic disorders. At present, NAFTLD is considered an integral part of the “metabolic syndrome”. The frequency of occurrence varies from 14 to 26%, in addition, 10% of patients show signs of steatohepatitis non-alcoholic aetiology. Clinical manifestations of NAFTLD do not differ in specificity and diversity. This pathology is quite long able to proceed asymptomatically, and pathological changes in the liver are detected quite randomly, and as clinical practice shows, such patients turn to medical organizations for completely different reasons. The authors consider in detail aspects of the clinical and anamnestic characteristics of this nosology and provide an overview of the diagnostic complex used to identify NAFTLD and possible diagnostic markers.
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Modern ecological situation of Shamkir water reservoir
Статья научная
During the study, it was found that the water collected in the Shamkir reservoir was contaminated with Escherichia , Enterobacter , Salmonella and others belonging to the family of coli-enterobacteria. Infection with taxa of the genus is also evidenced by their spread along the stream in the basin. Comparing our results with the results obtained in previous years, it is clear that the number of coli enterobacteria in the Shamkir reservoir is constantly increasing.
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Краткое сообщение
A good knowledge of a language, including English, is impossible without knowledge of its phraseology! Language, as a social phenomenon, is closely connected with the realities and traditions of the people-carrier. The article reveals the approaches to the definition of idioms, substantiates the importance and relevance of introducing idioms in the process of teaching English. It is proved that phraseology is not only a cultural and informative source, but also contains the richest linguistic material, allowing to study various aspects of phonetics, vocabulary and grammar of a foreign language on its basis.
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Modern methods of teaching a foreign language at a non-linguistic university
Статья научная
The new requirements for student's education, which assume that they have relevant professional competencies, including foreign language communicative competence, actualize research attention to different approaches, technologies and conditions aimed at improving the quality of higher education. The article considers some innovative methods of teaching a foreign language at a non-linguistic university. On the basis of the conducted research, the author proves the need for innovative pedagogical technologies that would be effective and contribute to the progressive development of pedagogical science and prepare students for future professional activities.
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Modern pre-school education and innovative activities
Статья научная
Preschool educational institution and innovation is the subject of serious study of modern education. Modern educators of pre-school educational establishments should always be receptive to everything new. Innovations arise when appear to resolve the problem, when it turns out the contradiction between the desire and the actual outcome. The article deals with finding and finding solutions to these problems.
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Modern problems of management enterprises' innovation potential
Статья научная
The principles of modern management orient the management of organizations on rapid decision-making, constant contact with the consumer, granting subordinates autonomy, encouraging their entrepreneurship. It is known that the success of an enterprise depends not only on exceptionally successful market conditions, but, increasingly, on timely and objective evaluation and development of the company's innovative potential. And objective assessment, implementation and development of innovative potential is an integral part of the innovation management of the enterprise. The purpose of this work is to identify and analyze modern problems of managing the innovative potential of the enterprise.
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Modern situation of Hirudo orientalis in Lankaran natural province water basins
Статья научная
The Eastern medical leech ( Hirudo orientalis Utevsky et Trontelj, 2005) belongs to the Hirudinea class to a Euhirudinea subclass to the Gnathobdellidae order, Hirudo genus. H. orientalis is ectoparasitic bloodsucking. Medicinal leeches feed by sucking blood of the vertebrates such as mammals, fish, amphibians, birds and reptiles. They live in the freshwater basins in swamps, rivers and lakes. Materials were collected through the suture-catching nets to breed leeches and carry out investigations in laboratory conditions. The study was carried out in 2018-2020 in the 42 water bodies of the Lankaran natural province. H. orientalis was found in only 16 of them. The weight of the collected leeches was 1.0-2.5 g, and the length was between 4-10 cm.
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Modern technologies application in water bioresources and aquaculture
Статья обзорная
The production and use areas of aquatic plants are investigated in the article. In recent times, the development of fishing and the all-round use of aquatic plants (as food, the purchase of environmentally oil, as fertilizer) is one of the main issues of our day. Macroalgae are the basis of the cultivated sea products. Mainly, brown algae - laminaria, fucus, red algae - Kappaphycus alvarezii and Eucheuma are widely used for both food and alginate production. Spirulina algae, a representative of blue-green algae living in freshwater basins is one of the most cultivated and widely used algae. The fact that its composition is rich in proteins and vitamins creates the basis for the widespread use of algae. Algae thallome contains 60% protein, amino acids, oils, mineral salts, and fatty acids, which help to strengthen the immune system and eliminate anemia. In addition, biological substances obtained from algae active substances are easily absorbed by the body, it is one of the important substances for the regeneration of liver cells.
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Modern tendencies of innovation management in various economies sectors
Статья научная
Modern tendencies of innovative development in the field of economic sectors the main directions of scientific and technical progress in the field of formation of international integrated business systems. Increasing the efficiency and quality of international economics is largely determined by the introduction of foreign trade of goods and services. All achievements of scientific and technological progress of the economy require the best organized management application. Analyzing the situation that has developed in the service sector in recent year’s technological progress in all sphere based on professional researches on an innovative way of the management system.
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Modern theatrical processes in the reflection of theatrical studies (1991-2010)
Статья научная
Theatrical criticism occupies one of the important places in art history and in itself is a separate science. All civilized societies, cultural peoples and nations needed not only the expansion of various spheres of science and culture, but there was always a need for the development of theatrical criticism.
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Molecular heterogeneity of classical and Duarte galactosemia
Статья научная
For the first time we have conducted molecular-genetic analysis of GALT gene of galactosemia inherited disease in the newborn blood which found at the result of screening conducted maternity houses of Baku city of Azerbaijan Republic. For Azerbaijan people for the first-time identification of substitution of adenine nucleotide with guanine nucleotide in GALT gene position 563 was conducted. It leaded to substitution of glycineamino acid with arginine amino acid in position 188 of mutation protein. Galactosemia is an alteration that alters the way the body processes galactose. It may be due to a deficiency of any of the three enzymes of the galactose catabolic pathway; galactose-1- phosphate urydiltransferase (Gal-1-PUT), galactokinase or urydil diphosphate (UDP)- galactose-4-epimerase. Individuals having galactosemia are intolerant to lactose and galactose in milk. In the lack of proper diagnosis and treatment, this disorder can lead to enlarged liver, cirrhosis, renal failure, cataracts, brain damage and even death. Long term complications can be prevented with early diagnosis following birth and by eliminating lactose and galactose containing nutrients from daily diet.
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Molecular-Phylogenetic Research of the Genus Hypericum L. in Flora of Azerbaijan
Статья научная
Hypericum is one of the 100 largest flowering plant genera forming the family Hypericaceae Juss., which belongs to the clusioid clade of the Malpighiales. Hypericum is represented in Azerbaijan flora by 19 native species and 1 subspecies belonging to 7 taxonomic sections. The chloroplast DNA of 8 species from the genus was studied by PCR-RFLP analysis. Total genomic DNA was extracted from leaf tissue using the DNeasyPlantMini kit. (Qiagen Inc.; Valencia, CA, USA) following the supplied protocol and quanti field using a Nanodrop (Nanodrop Technologies; Wilmington, DE, USA) spectrophotometer. The article is part of an experimental study that comprises molecular-phylogenetic research of this genus in the flora of Azerbaijan.
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Momordica charantia L. introduction
Статья научная
The article deals with the introduction of Momordica charantia L. plant in Nakhchivan. This plant was discovered to be a new species for the flora of the Nakhchivan. Momordica charantia L. has fully adapted to the soil and climatic conditions of the area and has completed its vegetation period. The seeds of the plant were obtained, and it was recommended to use them taking into account the farming characteristics of the species.
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