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Статьи журнала - Бюллетень науки и практики
Все статьи: 6181
Electric power terminology: structural and semantic aspects
Статья научная
The article under discussion is devoted to the study of general issues of terminology and terminological activity in the field of electric power on the material of English, Russian and Uzbek languages. The development of electric power industry affects the state of different industries and everyday life of people all over the world. This industry concerns energy production, transmission, distribution and sale. Accordingly, all countries of the world pay due attention to it, and states carry out obligatory regulation in this sphere. The author of the article examines semantic, morphological and syntactic features of renewable energy terminology in order to determine the most productive way of terminology in this scientific field.
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Electric vehicle charging scheduling and pricing based on Stackelberg game
Статья научная
The disorderly charging and discharging of a large number of electric vehicles will have a serious negative impact on the safety and economic operation of the power system. In order to avoid safety problems and obtain maximum economic benefits, a master-slave game is proposed to model the maximization of profits for agents and car owners. In the upper model of the model, the optimization objective of the main body is to minimize the operating cost and minimize the load mean square error; in the lower model, the goal is to minimize the cost of electric vehicles; the particle swarm algorithm is used, and the model decoupling characteristics are used from the inside to the outside. Solve the Nash equilibrium point of the optimization model, obtain the set of optimal time-of-use electricity price and electric vehicle charging and discharging scheme, and finally obtain the global optimal pricing strategy. Various typical scenarios before and after optimization are compared and analyzed in detail through calculation examples, and the effect of the proposed model and the overall scheduling benefit are verified.
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Статья научная
The article deals with the development of electronic manual for the elective course “Complex numbers” in the Russian and English languages. In the modern world you must have a complete understanding of the numbers to master mathematical culture, but currently methodological developments in the study of the theory of complex numbers in schools is relatively small and designed electronic manual for the elective course “Complex number” allows not only to improve the mathematical culture of students, but also to develop communicative competence. The aim of the research is to develop the electronic manuals for the elective course “Complex numbers” in two languages. The following methods were used: analysis of psychological, pedagogical and methodical literature, analysis and synthesis of personal experience of the authors. The electronic manuals, presented in the form of a website, for the elective course “Complex numbers” in two languages became the result of the research. Materials of the article can be useful to enrich pedagogical knowledge, notably a deficiency in the study of complex numbers in the school mathematics course is made up. New ways of thinking at possibility of studying complex numbers in two languages opens up prospects for the development of both mathematical and communication skills. The results of the research can be used by teachers in the educational process in preparing students, pupils of 11 grades, as well as in improving mathematical and communicative culture of the general public.
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Emotive Expression in Text and Ways of Translation
Статья научная
Research relevance: there are isomorphic features of the investigated interjections in semantics, pragmatic terms and in structure. Research objectives: to reveal the emotional meaning of the Russian interjection Tsyts and the way of its translation into English and Kyrgyz languages. Research materials and methods: the authors use the method of translation and comparison of interjections in the literary works of M. Sholokhov “The Quiet Don”, Ch. Aitmatov “Farewell to Gyulsary” and M. Twain “The Adventures of Tom Sawyer”. Research results: the isomorphic features of the studied interjections coincide in their pragmatic characteristics, structure, meaning and nominative function. Conclusions: In the languages under consideration, by their syntactic nature, they can act as independent sentences.
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Employing algorithms in cosmetic facial surgery
Статья обзорная
The aim is to evaluate the scientific literature on the creation and application of algorithms in clinical settings, with a focus on their efficacy. Material and methods. The literature search was performed using the databases Scopus, Medline (PubMed), eLibrary (in total: 32 scientific papers).
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Endemic plants of the Sumgayitchay river basin (Azerbaijan)
Статья научная
In the course of the study, endemic plants of the flora of the Sumgayitchay River basin were studied. A total of 265 species of endemic plants were studied, of which 215 species are characteristic of the Caucasus and 50 species are naturally distributed in the endemic zone of Azerbaijan. Endemic plants of the flora of the Sumgayitchay River basin are systematically analyzed for the presence of taxa. Of the 215 Caucasian endemic species, 36 species belong to the family Asteraceae, 27 to Fabaceae, 17 to Brassicaceae, 16 to Rosaceae, 14 to Poaceae, 14 to Caryophyllaceae and 10 to Ranunculaceae. Of the 266 species of higher plants listed in the Red Book of Azerbaijan, 62 rare and endangered plants are common in the Sumgayitchay River basin. Plants with a new habitat were taken into account, a new distribution area of 14 plant species was determined. The Ministry of Ecology and Natural Resources of the Republic of Azerbaijan has submitted proposals for the conservation of the region’s biodiversity and the protection of flora.
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Статья научная
This study offers findings of endoscopic research of patients with stomach cancer after surgery of gastrectomy with different versions of small intestine plastic surgery. Total number of patients exposed to the research is 130, divided into 3 groups. Findings: veracious decrease of esophagitis (p
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Energy circuit of 1.3 MW with Brayton cycle
Статья научная
In this paper, a constructive scheme of the experimental device is proposed, and the principle of its operation is described in detail. The power circuit of the device has been drawn up. Complex impedance, frequency function, amplitude frequency characteristic and phase-frequency characteristic are obtained by mathematical transformation of the power circuit. The frequency response of the circuit is constructed. As a result of the calculations, we will obtain the amplitude frequency response and the phase frequency response. Using the found values of the characteristics, we will build graphs and draw conclusions about how the characteristics depend on the change in parameters and why the graph lines of the graphs are exactly the way they are.
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Статья научная
The purpose of the work is to describe the installation using differential equations and obtain approximate values before the experiment. In this paper, a constructive scheme of the experimental device is proposed, and the principle of its operation is described in detail. The power circuit of the device has been drawn up. Complex impedance, frequency function, amplitude-frequency characteristic and phase-frequency characteristic are obtained by mathematical transformation of the power circuit. The frequency response of the circuit is constructed. As a result of the calculations, we will obtain the amplitude frequency response and the phase frequency response. Using the found values of the characteristics, we will build graphs and draw conclusions about how the characteristics depend on the change in parameters and why the graph lines of the graphs are exactly the way they are.
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Статья научная
The energy transition is a challenge and an urgency for the world facing the scarcity of fossil fuels and their impacts in the ecosystems by climate change. Through this study, we wanted to assess the potential of new and renewable energies in the Republic of Mali and Azerbaijan in view of their promotion for the preservation of forest areas, in a world facing the challenges of global warming. The methodology was based on documentary collection and documentary exploitation and analysis of cartographic data, tables and other figures. The study revealed to us the high frequency of the potential of these so-called energies, especially solar in Mali and hydraulic, wind and solar in Azerbaijan and the commitment of the authorities of these States to promote the energy transition but also the dependence of these States on fossils such as: oil and gas. The Republic of Azerbaijan exports fossil fuels and Mali depends on imports. The transition to alternative energy resources will undeniably make it possible to reduce greenhouse gas emissions at the global level and to preserve forest ecosystems in both countries.
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Краткое сообщение
Presents the results of studies (research) on the use of silica raw materials from the production waste of refinement tailings of antimony ores (or antimony ores refinement tailings) and basalt fiber waste, their influence on the quality characteristics of non-autoclave aerated concrete.
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Enhanced heat transfer of heat-exchange equipment by pulsating air flow
Статья научная
This paper designs a pulsating generator to provide pulsating air flow for experiments the relationship between the average flow velocity, pulse and pulsation amplitude and the pulsating flow enhancement heat transfer ratio was discussed respectively. The characteristics of the pulsating flow enhanced heat transfer were analyzed, and the academic research and engineering application of pulsating heat transfer was proposed. This inevitably has an optimal pulsating frequency value at which the maximum vortex generation can be obtained within one pulsation cycle to obtain maximum heat transfer effect, for example, in this experiment; the optimal frequency is 1-1.25 Hz. The effect of Reynolds number Re on the low-frequency pulsation convection heat transfer process is that the low-frequency pulsation can only enhance the convective heat transfer within a certain range of Reynolds numbers. If it exceeds this range, the convective heat transfer is weakened.
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Статья научная
Study of urban public transport management on the basis of logistical approach today is of high relevance. For a long time, logistical concepts in transport have only been applied in the freight transport field of activities. However, logistical principles might be meaningful for systemic organization and management of civil passenger traffic. The given paper describes the use of logistical approach and technique in passenger transport, as a logistical chain of operators and infrastructure interacting through logistical links allowing for optimizing the production of transport services, meeting the needs of different population categories through the proper management of available economic resources. The paper proposes the use of logistical approaches in the systems of urban public transport. They should help to formulate the new principles of management, planning and control over material and their attendant flows, and to become the main competitive advantage in the market of transport services.
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Epizootological state of salmonella-infected honeybee colonies in the southern region of Azerbaijan
Статья научная
In 2020-2021, the number of apiaries and honeybee colonies in villages located in 3 regions of the Masalli district (lowland, foothill and mountainous territories) and the degree of their infection with salmonellae were determined. Salmonellosis is one of the characteristic diseases of honeybee colonies, widespread throughout the Masalli district. Infection of honeybee colonies with salmonellae led to a slowdown in the activity of colony, a decrease in productivity, and even the death of the honeybee colony. As a result of the conducted studies, the epizootological state and the degree of salmonella infection were detected in the lowland (24.1%), foothill (38.0%) and mountainous (45.8%) areas.
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Estimation methodology of efficiency of production capacity management at textile enterprises
Статья научная
In this article have been made an attempt to develop theoretical provisions and methodological recommendations for evaluating the efficiency of managing the production capacity of enterprises in the textile industry. Methodological basis of this research was works of foreign and domestic scientists-economists in this field. This research has been based on a general scientific methodology that involves the use of statistical analysis and economic-mathematical methods. The practical significance of the research results is that the obtained scientific and methodological results can be used by textile industry enterprises to solve the tasks of managing production capacities. The methodology for assessing the effectiveness of management of production capacity can be used by managers and specialists of textile enterprises in the process of developing measures to increase production capacity and increase the level of their use. The developed by the author results of the research are proposed for use in the educational process when studying the disciplines “Enterprise Economics”, “Operational Management”, “Production Management”, “Production Management” by students and students of economic specialties of universities.
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Estimation the role of small business in increasing export potential of Uzbekistan
Статья научная
This paper studies the role of small business in the economy and its sectors in Uzbekistan, as well as estimates their role in increasing and diversifying the export potential of Uzbekistan. Moreover, gives a brief and short description and results of reforms and programs held in the creation of a favorable environment for small business. As consequences of those reforms, the number of small business in Uzbekistan increasing steadily. Also acknowledged that agriculture plays a great role in the expansion and diversification of export in the state since it has absolute and comparative advantages in external trade. The share of small business in GDP have a positive high impact on the total amount of export 241.9 million dollars. Moreover, calculations show that there is high elasticity between the share of small business in export and GDP, industry, agriculture high enough. Conclusions indicate the role of agriculture especially small business in agriculture is very effective in increasing the share of small business in export.
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Статья научная
The prevention of hereditary diseases associated with gene and chromosomal disorders, in particular multifactorial-polygenic diseases is one of actual areas of medical genotyping. For the first time in the population of the Republic of Azerbaijan we have identified mutations C174T and C235T of the angiotensinogen gene and mutation C677T of the methylenetetrahydrofolate reductase gene both in the control group and among patients with diseases of the cardiovascular system. Reliable connections for the frequency of occurrence of polymorphism of the C174T and C235T alleles of the angiotensinogen gene and polymorphism of the C677T allele of the methylenetetrahydrofolate reductase gene were found with a statistical method. To identify the ethno-geographic relationship of the mutations C174T and C235T of the AGT gene for the population of the Azerbaijan Republic, we examined practically healthy individuals and patients with CVD. The composition of this group was multinational and corresponded to the main national and ethnic composition of the Republic. The distribution of the identified mutations C174T and C235T of the AGT gene, as well as the C677T polymorphism of the MTHFR gene among ethnic groups of the Azerbaijan Republic is identified as uneven.
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Статья научная
The research was carried out in the arid regions of Azerbaijan in 2021-2023. The main goal of the research was to provide a bioecological and phytocoenological analysis of species of the genus Chenopodium , widespread as a weed plant, in the composition of coenosis, and to reveal the possibilities of use based on ethnobotanical surveys among the population. Floristic, phytocoenological, ethnobotanical methods were used during the research. It was determined that 15 species of the genus in Azerbaijan flora are more widespread in the plains and mid-mountain belt, mainly in the desert, semi-desert steppe vegetation, and in cultivated areas. During the surveys conducted among the local population, it became clear that only 10 species of the genus are used, of which 5 species are used only as wild vegetables, 3 species are used only for treatment in folk medicine, and one species - Chenopodium album is used by the population both as a medicinal plant and as a vegetable plant. It has been recorded that one species ( Chenopodium foliosum ) of the genus is used as a dye plant.
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Etymological specificity of English-language ecology terms
Статья научная
The anthropocentric paradigm in linguistics, which brings to the fore the study of the human-language relationship, also correlates with the socio-ecological terminology: for the humanities, which includes philology, the terms of greatest interest are those that reveal various aspects of human interaction with nature, human influence on biological processes at various levels: from the micro-level (soil cultivation, cattle breeding, etc.) to the macro-level (global environmental disasters, space debris, etc.). The present article is an attempt to study the etymological specificity of English-speaking ecology terms in terms of anthropolinguistic approach.
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Evaluating the intellectual ability of entrepreneurship subjects and managers in market conditions
Статья научная
The article provides an overview of the current methods for evaluating the intellectual capital of the organization, analyzes techniques that allow to assess both the intellectual capital in general and its individual components. The author proves that entrepreneurship currently occupies an important niche in the economy of the state. But the insufficient elaboration of questions in science about the psychological characteristics of entrepreneurs, the fragmented and multifaceted information predetermine the directions in the study of this issue. The problem of studying the psychological characteristics of the entrepreneur is relevant for the present time. In general, the author developed a methodology for assessing the intellectual ability of entrepreneurs.
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