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List of publications on a keyword: «water»

  • EFFECT OF NATURAL WATER HARDNESS ON THE FOAMING PROPERTIES OF LICORICE ROOT EXTRACT

    Conference Paper
    Modern environmental protection technologies
    Authors:
    Lachin M. Niiazmetova, Nurmurad M. Niiazmetov, Shemshat O. Metieva
    Work direction:
    Экология и современные технологии
    Abstract:
    This article presents the results of an experimental study of the foaming properties of an aqueous extract of licorice root (Glycyrrhiza glabra L.) under different water hardness conditions using natural water samples from the Dashoguz Region of Turkmenistan. The chemical nature of saponins, methods of their extraction from plant raw materials, and their ability to form stable foam were investigated. Laboratory experiments were conducted using groundwater from a borehole, well water, and agricultural drainage water. It was established that licorice root extract retains its foaming ability in hard water. The results obtained demonstrate the potential for further research into plant-derived saponins for the development of detergent formulations adapted to regional water conditions.
    Keywords:
    licorice, glycyrrhizin, saponins, aqueous extraction, foam formation, foam stability, water hardness, Aral Sea region, Dashoguz Region

  • Technical aesthetics teaching methodology for the major «Water Supply and Sewerage»

    Book Chapter
    Current Issues in Pedagogy and Psychology
    Author:
    Aleksei N. Birzul'
    Work direction:
    Глава 6
    Abstract:
    The chapter is devoted to the problems of aesthetic properties of water supply and sewerage systems studying in higher education. The problem’s history is briefly described and previous scientific works are named. The main reasons for which it is necessary to pay attention to technical aesthetics while designing such engineering systems are formulated. Recommendations for choosing aesthetic characteristics are given, and the author also suggests 5 principles that improve the aesthetics of such systems. Each of the principles is illustrated with specific examples from domestic and foreign experience in design and teaching.
    Keywords:
    teaching methodology, water supply, sewerage, technical aesthetics, water tower, industrial architecture
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  • Sorption processes studying in water chemistry course (from L.V. Kozak's work experience)

    Conference Paper
    Pedagogy, Psychology, Society: from theory to practice
    Author:
    Aleksei N. Birzul'
    Work direction:
    Теория и методика профессионального образования
    Abstract:
    Статья приурочена к 80-летию со дня рождения старшего преподавателя кафедры «Гидравлика и водоснабжение» ДВГУПС Любови Васильевны Козак. Л.В. Козак сыграла значительную роль в развитии методики преподавания химии воды в ДВГУПС, была инициатором и ответственным исполнителем по переоснащению кафедральных лабораторий. Цель предлагаемой юбилейной статьи – познакомить с опытом педагогической работы Л.В. Козак и ее коллег в области сорбционной очистки воды. Высказаны рекомендации, описаны технические приемы и даны примеры, которые недостаточно освещены в методической литературе по химии воды.
    Keywords:
    teaching methods, water chemistry, scientific biography, water purification by sorption, history of chemistry, demonstration experiments
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  • COMPARATIVE BIOMECHANICAL ANALYSIS OF THE EFFICIENCY OF CLASSICAL BIFASTS AND MONOFASTS IN SPRINTER DISCIPLINES OF UNDERWATER SPORTS

    Conference Paper
    Manchaara Games: Generational continuity in the development of national sports – 2026
    Authors:
    Veronika A. Sorokina, Aleksandr V. Nikishkin
    Work direction:
    Актуальные проблемы и тенденции развития студенческого спорта
    Abstract:
    The article provides a comparative analysis of two types of propulsion devices — bilast and monofin — from the perspective of coaching practice, which is focused on developing and adjusting athletes’ technique. The study focuses on the differences in the kinematics of the rowing motion: trajectories and amplitudes of the working and preparatory phases when using each type of fin are examined in detail, as well as the biomechanical parameters that determine the efficiency of the impulse. The “cost” of one rowing cycle is analysed in terms of metabolic and mechanical expenditures — in particular, the ratio of the developed thrust to the total energy expenditure of the body. Special attention is paid to the transformation of the motor stereotype when transitioning from separate fins to a monofin: typical adaptive shifts, key points for monitoring technique, and markers of incorrect restructuring of the movement pattern are described. The patterns of the monofin’s speed potential in sprint
    Keywords:
    underwater sports, swimming with fins, bilastoks, monoflats, stroke biomechanics, kick, motor pattern, lower back, ankle, overload prevention
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  • PSYCHOPHYSIOLOGICAL MECHANISMS OF BREATH‑HOLD CONTROL IN FREE‑DIVING DIVERS

    Conference Paper
    Manchaara Games: Generational continuity in the development of national sports – 2026
    Authors:
    Veronika A. Sorokina, Aleksandr V. Nikishkin
    Work direction:
    Психолого-педагогические и медико-биологические аспекты спортивной подготовки
    Abstract:
    The article examines how a swimmer’s body manages breath‑holding during competitions when wearing fins. It explains why an overwhelming desire to breathe arises, how carbon dioxide and oxygen deficiency affect this, and what psychological skills help the athlete maintain control. Special attention is paid to the current regulatory framework: Federal Law No. 329‑FZ, the rules of the sport “underwater sports” (Order of the Ministry of Sport of Russia No. 979), and the federal standard for sports training (Order No. 1023). It is emphasized that any breathing techniques should only be used under the supervision of a trainer and in compliance with safety measures.
    Keywords:
    hypercapnia, underwater sports, breath‑holding, chemoreflex, hypoxia, psychological self‑regulation, finswimming, freediving
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  • MUSCLE ACIDIFICATION IN UNDERWATER SPORTS, WAYS TO OVERCOME IT

    Conference Paper
    Manchaara Games: Generational continuity in the development of national sports – 2026
    Authors:
    Artiom A. Zharkov, Pavel I. Levkovskii, Aleksandr N. Donskoi, Iurii M. Miasnikov, Aleksandr V. Nikishkin, Veronika A. Sorokina
    Work direction:
    Психолого-педагогические и медико-биологические аспекты спортивной подготовки
    Abstract:
    In the article, the authors examine the physiological mechanism of muscle acidification in swimmers using fins over short distances. It explains why muscles become fatigued quickly over distances of 50, 100, and 200 meters due to the accumulation of hydrogen ions, and what nutritional strategies — from carbohydrate loading to buffer supplements — can delay fatigue. Examples from the practice of titled Russian and foreign athletes are provided, along with data from clinical studies. Special attention is paid to the regulatory framework for sports nutrition in Russia, including mandatory labeling with anti‑doping risks.
    Keywords:
    underwater sports, Muscle acidification, lactate, anaerobic glycolysis, buffering, sodium bicarbonate, beta‑alanine, carnosine, sports nutrition, swimming with fins, anti‑doping rules
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  • Contribution of Hydrogen Bond Networks to the Exceptional Properties of Water

    Conference Paper
    Fundamental and applied research for key propriety areas of bioecology and biotechnology
    Authors:
    Zarina N. Ubeikina, Aisylu A. Daminova, Irina A. Dobrosmyslova, Mariia A. Frolova, Elena V. Sapiorova, Svetoslav A. Dobrosmyslov, Anatolii P. Zhuravlev
    Work direction:
    Биохимия и токсикология (биохимические, иммунологические, токсикологические исследования)
    Abstract:
    The paper presents the results of a study on the physicochemical properties of water and their role in natural and biological systems. An analysis of the water molecule structure was carried out, and its key characteristics — high heat capacity and selective dissolving power — were demonstrated experimentally. The significance of these properties for stabilizing the environment and supporting vital functions was also assessed. The aim of the study was to demonstrate the fundamental importance of water’s anomalous properties, which are often perceived as commonplace. The results confirm that the polarity of the H₂O molecule, the developed network of hydrogen bonds, and the resulting physicochemical characteristics determine water’s indispensable role in physical, chemical, and biological processes.
    Keywords:
    scientific research, water, physicochemical properties, solvent, heat capacity, molecular structure, natural processes
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  • The Physico‑Biological Role of Water and the Dependence of Aqueous Solution Density on Sucrose Concentration

    Conference Paper
    Fundamental and applied research for key propriety areas of bioecology and biotechnology
    Authors:
    Daria V. Kulanova, Daria M. Poltaeva, Mariia A. Frolova, Elena V. Sapiorova, Svetoslav A. Dobrosmyslov, Anatolii P. Zhuravlev
    Work direction:
    Биохимия и токсикология (биохимические, иммунологические, токсикологические исследования)
    Abstract:
    This study presents a comparative analysis of how sucrose (C 12 ​ H 22 ​ O 11 ​ ) concentration affects aqueous solution density, interpreting the data through biochemical and physical‑chemical mechanisms (hydration, hydrogen‑bond network rearrangement, osmotic effects); a direct correlation between sucrose concentration and density was confirmed, with the maximum density increase (1.280 g/cm³) observed at a 44.4 % mass fraction, reflecting solution structure compaction due to intermolecular interactions, and supporting the use of the areometric method for rapid carbohydrate concentration assessment in technological and biochemical systems, as well as interpretation in terms of water‑salt homeostasis and osmoregulation.
    Keywords:
    water, sucrose, solution density, concentration, hydration, hydrogen bonds, osmotic pressure, biochemical interactions, areometric method, hydration shell
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  • Подводный спорт

    Conference Paper
    Manchaara Games: Generational continuity in the development of national sports – 2025
    Authors:
    Aleksandr V. Nikishkin, Aleksandr A. Liubakov, Veronika A. Sorokina
    Work direction:
    Актуальные проблемы оздоровительной и адаптивной физической культуры
    Abstract:
    The study of underwater sports broadens the readers' horizons and enriches their understanding of the possibilities of active recreation and maintaining health through unique ways of interacting with nature. The article examines the history of the emergence and development of underwater sports, describes the main directions and their features, and introduces the reader to the necessary technical equipment used in the sport. The authors pay special attention to safety issues and environmental ethics in underwater sports.
    Keywords:
    sports competitions, underwater sports, performance techniques, training specifics, sports discipline, exciting activities, and special equipment
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  • Water supply system of the Krasnodar Territory: problems of network wear and tear and management aspects

    Conference Paper
    Strategies of Sustainable Development: Social, Law and External-economic Aspects
    Authors:
    Aleksandr R. Pishevets, Mariia V. Zelinskaia
    Work direction:
    Социально-экономические условия жизнедеятельности населения
    Abstract:
    The article considers the current state of the water supply system of the Krasnodar Territory from the point of view of municipal infrastructure management, special attention is paid to the problem of network wear. Statistical data on the provision of the population with water, the scale and age of the network infrastructure, as well as the dynamics of reducing network wear over the last decade are presented. The main problems associated with high physical wear of water supply networks and its consequences for management were analysed: an increase in accidents, significant water losses, financial difficulties of enterprises and the need for large-scale modernisation. The measures taken by regional authorities to update networks (modernisation programs, investments, concession agreements and national projects) and management approaches to solving the identified problems are described. As a result, conclusions were formulated on the need for integrated planning, sufficient funding and st
    Keywords:
    water supply, Modernisation, Krasnodar Krai, network wear and tear, communal infrastructure, housing and communal services management
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  • Metodicheskoe nasledie professora G.I. Volovnika

    Conference Paper
    Socio-Pedagogical Issues of Education and Upbringing
    Author:
    Aleksei N. Birzul'
    Work direction:
    Содержание и технологии профессионального образования
    Abstract:
    Статья подготовлена к 100-летию со дня рождения одного из наиболее известных ветеранов ДВГУПС, кандидата технических наук, профессора, основателя специальности «Водоснабжение и водоотведение» в ДВГУПС Георгия Исаевича Воловника (1924–2013). В статье Г.И. Воловник представлен и как талантливый лектор, постоянно работавший над доступностью изложения методов очистки воды, и как плодовитый автор учебных пособий, предложивший новые методические подходы к изложению специальных дисциплин профиля «Водоснабжение и водоотведение» и описавший оригинальные методики в области эксплуатации и реконструкции инженерных сооружений. На конкретных примерах показано, как печатные труды Г.И. Воловника сыграли большую роль в практике преподавания и в дальнейшем развитии методической работы кафедры «Гидравлика и водоснабжение» ДВГУПС.
    Keywords:
    teaching methods, water supply, sewerage, water purification, history of water industry, scientific biography
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  • Ecological and biological state of the soil in the Yanaul region

    Conference Paper
    Fundamental and applied research for key propriety areas of bioecology and biotechnology
    Author:
    Olesia R. Kasymova
    Work direction:
    Актуальные вопросы биоэкологии, систематики, анатомии и морфологии животных и растений
    Abstract:
    В статье представлены результаты биоиндикации почвы Янаульского района. Использовался метод биоиндикации почвы с помощью кресс-салата.
    Keywords:
    assessment, industry, soil, pollution, watercress
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  • Calculation of ice at bridge crossings

    Book Chapter
    Development of the Russian socio-economic system: challenges and prospects
    Authors:
    Vasilii I. Konnov, Anna S. Kozlova
    Work direction:
    Глава 13
    Abstract:
    The chapter is devoted to the study of river ice formation factors and determination of their parameters in natural conditions. Hydrodynamic pressure in ice hillocks affects the stability of structures. The authors consider the modes of frost formation, establish the processes of intensive formation of ice in the upper and lower parts of the stream, and propose calculation dependences for practical application.
    Keywords:
    frosts, watercourse regime, river frosting, conditions of frost formation
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  • Teoreticheskie osnovy i institutsional'nye usloviia tekhnologicheskikh izmenenii pri razvitii vnutrennikh vodnykh putei Rossii

    Book Chapter
    Law and economic development: current issues
    Authors:
    Olesia A. Lykova, Marina S. Siziakina
    Work direction:
    Глава 8
    Abstract:
    The study examines the issues of mutual influence of institutional changes and material and technological development of the water transport industry in terms of changes in the conditions of navigation on the inland waterways of Russia. In a historical retrospective, the development of ports is examined depending on the prevalence of certain technologies, a logical relationship is built between the main categories that determine the processes of change in the institutional structure of the economy. The factors influencing the process of transformation of the technological structure of the inland water transport industry in the Azov-Black Sea direction are considered.
    Keywords:
    technological changes, technological structure, institutional conditions, inland waterways of Russia, Azov-Black Sea basin, port development
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  • Study of Activated Waters Indication Methods in the Course of Subject «Water Chemistry»

    Conference Paper
    Pedagogy, psychology, society: from theory to practice
    Author:
    Aleksei N. Birzul'
    Work direction:
    Теория и методика профессионального образования
    Abstract:
    The article discusses the current state of the issue about identifying changes in water as a result of various physical influences. The paper provides a classification of indication methods, analyzes their main advantages and disadvantages, discusses the most commonly used indicators, and assesses the prospects of their further usage for water quality control. The necessary information for lecturing and practical trainings on the water chemistry is given.
    Keywords:
    physical factors, activated waters, water quality, indication, water chemistry
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  • Study of Self-Purification of Water Body Physical Mechanism as Part of "Complex Usage of Water Resources" Academic Subject

    Conference Paper
    Pedagogy, Psychology, Society
    Authors:
    Aleksei N. Birzul', Dmitry A. Pitilyak
    Work direction:
    Теория и методика профессионального образования
    Abstract:
    The article highlights the methodological issues of physical self-purification mechanisms of water bodies; they are closely related to the problem of protection and multipurpose water resources utilization. Methods of enhancing the physical processes of water bodies’ self-purification are described and considered to be included in lectures in construction educational institutions. Radioactive, mechanical, electromagnetic, and thermal mechanisms are characterized in detail. According to the authors, knowing of the physical mechanisms of self-purification will decrease the depletion of water resources and reduce their pollution.
    Keywords:
    natural waters, water protection, self-purification, hydrophysics, physical factors
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  • Features of the application of the method of chlorination and disinfection of wastewater in UMUP "Ulyanovsk Vodokanal".

    Conference Paper
    Fundamental and applied research for key propriety areas of bioecology and biotechnology
    Authors:
    Svetlana V. Orekhova, Svetlana N. Beksaeva, Natal'ia A. Lengesova
    Work direction:
    Актуальные вопросы биоэкологии и биотехнологии
    Abstract:
    This article is devoted to identifying the negative effects of chlorine and its compounds on the environment and humans. The paper discusses and compares the methods of wastewater treatment: chlorination and ultraviolet irradiation by example of UMUP "Ulyanovsk Vodokanal".
    Keywords:
    treatment, ecology, environment, waste water, chlorine, chlorinated water, tap water
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  • Lexico-Semantic Groups of Chuvash Hydronyms

    Research Article
    Development of education Volume 4 No 1
    Author:
    Anna S. Egorova
    Work direction:
    Ethnopedagogics
    Abstract:
    The article is devoted to the lexical and semantic analysis of Chuvash hydronyms. The purpose of the study is to classify the names of water bodies by lexical and semantic groups, to identify the main principles of the nomination of hydro-names. The article deals with the names of rivers and streams, lakes and ponds, swamps and swampy places, the names of springs and wells. The main material for the analysis was collected by the author during field research, data from the toponymic file of the Scientific Archive of the CSUH and various cartographic sources, maps of land stored in rural administrations of the Chuvash Republic were used. The main methods are descriptive, comparative, typological, and statistical ones. The results of the study showed that according to the lexical and semantic classification, Chuvash hydronyms are divided into two groups: 1) hydronyms that reflect the physical and geographical properties of water bodies and their environment; 2) hydronyms that have arisen as a result of practical human activity. Most of the names of water bodies are based on a specific feature of the geographical realities themselves. Their Chuvash language can be grouped into the following subgroups: 1) names containing a significant feature of the object; 2) names indicating the ground, soil; 3) names related to the plant world; 4) names associated with the animal world; 5) names indicating the location of the water body; 6) names expressed by numerical indicators; 7) figurative and metaphorical names. Hydronyms that have arisen as a result of the practical activity of a person are divided into the following subgroups: 1) hydronyms related to the life and economic life of the population; 2) hydronyms whose meanings are related to the social life and spiritual culture of the population; 3) hydronyms derived from anthroponyms; 4) hydronyms derived from ethnonyms; 5) hydronyms derived from toponyms. It is concluded that as a result of lexical and semantic analysis, it is possible to establish the principles of the nomination of hydronymes, to identify the physical and geographical characteristics of the area, to obtain new information about the material and spiritual culture of the Chuvash people.
    Keywords:
    Chuvash hydronyms, Chuvash oikonyms, names of water bodies, lexico-semantic analysis, lexico-semantic groups, physical and geographical properties, material and spiritual culture of the Chuvash people
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  • Project-Process Model for Forming "School–University" Partnerships That Implements the Current Educational Paradigm of the Russian Federation

    Book Chapter
    Questions of Education and Psychology
    Authors:
    Sergei A. Anin, Vitalii A. Belousov, Iuliia E. Darovskikh, Dmitrii V. Pervukhin, Merjen K. Eyeberdiyeva
    Work direction:
    Глава 1. Теоретические аспекты образования
    Abstract:
    The article discusses the possibilities of forming partnerships in the “school – university” educational system, the features of the development of extended cooperation on the example of a model made in the IDEF0 notation, which is widely used in world practice. Possible ways to optimize approaches and planning of the educational process that would meet the latest trends of educational standards are analyzed. The problem of the need to introduce new pedagogical practices, which is caused by a change in the functional approach, is considered. Various methodologies and practices of process and project management that have the advantage of multi-level activity decomposition are analyzed. The graphical language and visualization of which helps to form a detailed representation of the overall picture for the full implementation of the tasks set. The purpose of the presented process model is to establish network partner relations between schools and universities. The step-by-step, waterfall process model proposed in the article clearly demonstrates the amount of resources needed and determines the step-by-step process of project implementation. The considered possibility of establishing partnership relations is aimed at attracting potential University applicants. The awakening of academic interest among potential applicants is formed through the use of various activities on the part of the educational institution and the activity team.
    Keywords:
    process models, project management, waterfall methodology, model analysis, IDEF0 notation
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  • Rezul'taty analiza metodologii upravleniia proektami v usloviiakh sovremennoi ekonomiki

    Conference Paper
    Topical issues of law, economic and management
    Authors:
    Ekaterina K. Filiugina, Dmitrii V. Pervukhin
    Work direction:
    Экономика предпринимательства
    Abstract:
    В работе представлены результаты исследования эффективности методологий управления проектами. С помощью математических моделей было произведено сравнение количественных показателей при применении различных подходов и сделаны выводы о целесообразности использования гибридного подхода. При этом было доказано, что для достижения наибольшей эффективности подразумевается осуществление каскадной методологии (WaterFall) с применением итеративного (Agile) подхода на определенных стадиях проекта.
    Keywords:
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