Paradoxical phenomena and properties discovered in emulsions

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Бібліографічний опис статті:

. Paradoxical phenomena and properties discovered in emulsions//Наука онлайн: Міжнародний електронний науковий журнал - 2025. - №3. - https://nauka-online.com/publications/technical-sciences/2025/3/05-23/

Анотація: (English) In this publication, the author revisits the issue of three-dimensional hydraulic shape memory in emulsions obtained using a proprietary complex method and a multifunctional apparatus invented specifically for this purpose. The technology and apparatus were tested on a water-in-oil emulsion, where diesel fuel No. 2 was used as the oil phase and regular drinking water with a hardness salt concentration of up to 200 mg/L was used as the aqueous phase. During the design of the test bench, the latest trends in the application of emulsions as fuel were taken into account, including their use in modern diesel engines, diesel generators, industrial boilers, and turbines. For diesel engines and boilers, one of the most challenging aspects of the fuel injection and combustion process is fuel flow separation before the high-pressure pump. In this stage, the majority of the fuel flow is directed to the high-pressure pump (which today operates at pressures of 2000 bar and above) before being injected into the combustion chamber of a boiler or the cylinders of an engine, while a smaller portion is returned to the fuel tank. When using conventional single-component diesel fuel, this principle does not cause any issues. However, in the case of emulsified fuels, such a fuel supply method leads to instability in the emulsion, disrupting its homogeneity and uniform distribution of water and oil (diesel fuel) throughout the volume.

Digital technologies within innovative technical systems

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Бібліографічний опис статті:

. Digital technologies within innovative technical systems//Наука онлайн: Міжнародний електронний науковий журнал - 2025. - №3. - https://nauka-online.com/publications/information-technology/2025/3/04-25/

Анотація: (English) In modern conditions, where new ideas are constantly emerging and, as a result, spontaneously identical ideas may arise in parallel across different developer structures in various countries, the tasks of correctly classifying and identifying innovative solutions based on TIPS formulations and definitions become particularly significant. At the same time, issues of patent protection are becoming an increasingly crucial element in the development of projects. Not long ago, most invention topics had a fairly localized nature, and the positive effect of their application was determined and identified relatively simply. Today, as computer-aided design methods—particularly those from the SolidWorks software family, which can justifiably be identified with artificial intelligence—have deeply permeated the process of making technical and technological decisions, the number of facts and features of technical solutions and their evolution up to the level of technical super-systems has grown significantly. This necessitates a localized alignment with definitions, principles, and methods for identifying the entire hierarchy of technical solutions, ranging from local technical solutions with non-regulated technical and technological connections to complex, highly intricate conglomerates of local technical solutions. Since the issues of identifying all types and levels of technical solutions primarily affect the ability to systematically protect existing and emerging intellectual property—both at the level of active and efficient subsystems and at the level of active accumulators of subsystem properties and characteristics, i.e., technical supersystems.

Adaptive eyelash extension considering the growth phases of natural eyelashes according to mariia chebanenko methodology

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. Adaptive eyelash extension considering the growth phases of natural eyelashes according to mariia chebanenko methodology//Наука онлайн: Міжнародний електронний науковий журнал - 2025. - №3. - https://nauka-online.com/publications/other/2025/3/03-29/

Анотація: (English) This scientific article presents an innovative concept of adaptive eyelash extension based on a detailed analysis of the biological growth cycles of natural eyelashes. The methodology developed by Mariia Chebanenko offers a systematic approach to the extension procedure, taking into account the physiological characteristics of each eyelash depending on its growth phase (anagen, catagen, telogen). The study demonstrates that the individual selection of artificial eyelash parameters (length, thickness, curl, volume) in accordance with the physiological state of natural lashes significantly extends the retention period, minimizes discomfort, and the most important thing it’s prevent negative effects on the client's eyelash health. Biomechanical aspects of various extension techniques' impact on eyelash structure are examined, and the advantages of the adaptive methodology over traditional approaches are analyzed. The article also addresses issues of age-related changes in eyelash structure and offers strategies for adapting extension techniques to the individual characteristics of clients of different age groups.

Psychological and economic prerequisites for the formation of demand for tourism services

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. Psychological and economic prerequisites for the formation of demand for tourism services//Наука онлайн: Міжнародний електронний науковий журнал - 2025. - №3. - https://nauka-online.com/publications/economy/2025/3/02-36/

Анотація: (English) This study explores the psychological and economic prerequisites for the formation of demand for tourism services, taking into account not only travelers' incomes but also stable personality traits, values, and motivations. The relevance of the topic is due to the fact that classical economic models, which rely solely on demographic and financial parameters, often prove insufficiently accurate in predicting actual consumer behavior in the tourism sector. The novelty of this work lies in the proposal of an expanded approach that integrates elements of behavioral economics and psychological variables into traditional models of tourism demand. The study describes various ways to account for personality factors, cognitive biases, and emotional engagement of tourists, as well as an analysis of existing research confirming the significance of these factors in route selection and expenditure distribution. Particular attention is given to comparing models that incorporate social preferences and motivational attitudes. The objective of this study is to demonstrate the advantages of a comprehensive approach that considers both economic and psychological determinants. The findings may be useful for tourism and marketing professionals in designing products and forecasting travelers' expenditure structures.

Особливості підготовки жінок до участі в автомобільних видах спорту

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Бібліографічний опис статті:

. Особливості підготовки жінок до участі в автомобільних видах спорту//Наука онлайн: Міжнародний електронний науковий журнал - 2025. - №2. - https://nauka-online.com/publications/physical-education-and-sports/2025/2/11-21/

Анотація: Автомобільний спорт є однією з найдинамічніших і найвимогливіших дисциплін, що потребує високого рівня фізичної, технічної та психологічної підготовки. Попри стереотипи, жінки все частіше беруть участь у професійних автоперегонах, доводячи свою конкурентоспроможність. Вивчення особливостей їхньої підготовки дозволяє оптимізувати тренувальні методики та сприяти залученню жінок до автоспорту. Метою статті є аналіз специфіки підготовки жінок до автомобільних змагань та розробка рекомендацій щодо вдосконалення їхнього тренувального процесу. Основні завдання включають: дослідження фізіологічних та психологічних особливостей жінок в автоспорті; аналіз методів фізичної, психологічної та технічної підготовки; визначення основних бар’єрів та факторів успіху у жіночому автоспорті.

Multidisciplinary digital technologies with elements of artificial intelligence

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Бібліографічний опис статті:

. Multidisciplinary digital technologies with elements of artificial intelligence//Наука онлайн: Міжнародний електронний науковий журнал - 2025. - №3. - https://nauka-online.com/publications/information-technology/2025/3/01-41/

Анотація: (English) Modern Multidisciplinary Digital Technologies with Elements of Artificial Intelligence and Artificial Neural Networks, and Aspects of Production and Marketing of Products Created Based on and in the Development of These Technologies in Their Interaction with TRIZ and ARIZ.

Порівняння насосу типу СВН з конкурентним типом ГНОМ

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. Порівняння насосу типу СВН з конкурентним типом ГНОМ//Наука онлайн: Міжнародний електронний науковий журнал - 2025. - №2. - https://nauka-online.com/publications/technical-sciences/2025/2/10-21/

Анотація: Використання насосних агрегатів є невід’ємною складовою комунальних господарств. Вітчизняна промисловість з початку ХХ століття виробляє велику номенклатуру гідромашин усіх типів. Серед них з часом з’явився новий тип – вільновихрові насоси. У цій статті проведено порівняння насосу типу СВН з популярним насосом типу ГНОМ (грязьовий насос одноступеневий моноблоковий). Висвітлено теоретичні переваги та недоліки кожного з типів насосів на основі даних технічної документації компаній-виробників. Складено порівняльну таблицю з основними даними насосних агрегатів.

Applications of dynamic homogenization technology

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Бібліографічний опис статті:

. Applications of dynamic homogenization technology//Наука онлайн: Міжнародний електронний науковий журнал - 2025. - №1. - https://nauka-online.com/publications/technical-sciences/2025/1/01-40/

Анотація: (English) This article provides a brief overview of key fragments of an integrated technology that determine its applicability across various technical and commercial scenarios. In all cases, the focus is on a single type of device that performs dynamic mixing and simultaneous dynamic homogenization of liquid and gaseous physical media. The article explores all potential aspects of the technology and the device that implements it. Special attention is given to dynamic reagent-free homogenization as a fundamental integrative process that enhances the accuracy of non-contact monitoring of liquid conditions in pipelines. These pipelines can be monitored using aerial imaging or unmanned aerial vehicles (UAVs). For the successful commercialization of this integrated technology, it is crucial to identify all viable implementation opportunities—specifically those where the technology is clearly in demand.

Device for dynamic homogenization; dynamic emulsion

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Бібліографічний опис статті:

. Device for dynamic homogenization; dynamic emulsion//Наука онлайн: Міжнародний електронний науковий журнал - 2025. - №2. - https://nauka-online.com/publications/technical-sciences/2025/2/09-19/

Анотація: (English) When using gasoline-ethanol fuel blends, there is always a risk of phase separation into organic fractions and water (inherent in ethanol). The higher the ethanol content in the blend, the more significant the negative impact of phase separation into organic components and water. This paper proposes a device with no moving parts, installed in the fuel pipeline between the fuel pump and the high-pressure pump. The fuel pump outlet is connected to a splitting tee, which divides the fuel flow into two streams. These streams undergo turbulence-level homogenization within the device, and if water is present in the gasoline-ethanol mixture, it is dynamically emulsified during the homogenization process. The dynamic emulsion exiting the device then enters the engine’s high-pressure pump, where, under high-pressure conditions, it is further transformed into a nanoscale emulsion. Upon combustion in the cylinder’s combustion chamber, this emulsion eliminates soot formation and nitrogen oxide emissions while maintaining engine power output. These effects have been confirmed through testing conducted by ROUSH.

Preparation of gaseous fuel mixtures

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Бібліографічний опис статті:

. Preparation of gaseous fuel mixtures//Наука онлайн: Міжнародний електронний науковий журнал - 2025. - №2. - https://nauka-online.com/publications/technical-sciences/2025/2/08-19/

Анотація: (English) All specialists in the field of internal combustion engines had to deal with the key problem of these engines - low efficiency; The reasons for this phenomenon are also well known - the imperfection of the mechanism for converting reciprocating motion into rotary motion; It would seem that since the causes of power losses are in the mechanical motion conversion systems, then replacing such a mechanism with a more efficient one should resolve this technical contradiction; Over the last year alone, several thousand technical solutions have been announced in this area, but investors are in no hurry to take advantage of them; The combustion cycle of the fuel mixture in the cylinders of a modern internal combustion engine (Otto cycle) has been brought to complete perfection, its real efficiency on serial internal combustion engines has been brought to 98%, which means that during the implementation of the combustion cycle, 98% of the energy contained in the fuel is extracted; This result is achieved to a large extent due to the design of the fuel system, which has been developed to almost complete perfection, and the associated system of combustion chambers in the engine cylinders, in which combustion today occurs due to combustion at constant pressure.

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