Rubric: Technical sciences

Comprehensive active online monitoring systems

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. Comprehensive active online monitoring systems//Science online: International Scientific e-zine - 2025. - №2. - https://nauka-online.com/en/publications/technical-sciences/2025/2/04-24/

Annotation: If we consider modern pharmaceutical production as an example, then in each technological tank of such production, we can find so-called dead zones, in which the processes are slowed down and their dynamics radically differs from the same processes in the active parts of the technological tank, where, as a rule, there is a circulation, developed turbulent movement of process fluids In the corners of such tanks the level of dynamic activity decreases sharply and the results of chemical reactions may differ significantly from areas with developed turbulence In order to controlthe chemical – reaction activity of the entire working volume of the technological tank and, as necessary, equalize all the main operating parameters of the process, and in addition, to ensure the same time of a high-quality technological process at all points of the working volume of the technological tank, a sensor module is formed based on modern achievements and capabilities of contactless sensor technology in the form of a sleeve, in which a sensor – solenoid is embedded, of a certain design.

Use of environmentally friendly materials in modern jewelry production

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. Use of environmentally friendly materials in modern jewelry production//Science online: International Scientific e-zine - 2025. - №2. - https://nauka-online.com/en/publications/technical-sciences/2025/2/02-35/

Annotation: This article considers the problem of traditional use of nickel in jewelry production, associated with the risk of allergic reactions, and presents a comprehensive solution based on the development of an innovative nickel-free alloy with gold plating. A review of the literature demonstrates that nickel, used to provide luster and strength to products, can release ions upon skin contact, leading to allergic contact dermatitis. The present study is devoted to the development of a new composition that excludes nickel, while maintaining the necessary mechanical and aesthetic properties, as well as the technology of gold plating with the formation of a protective barrier layer, which ensures the hypoallergenicity of the product. The obtained results, confirmed by X-ray fluorescence analysis (XRF) and certification from “UKRCHIMANALIZ” LLC (2020), indicate the complete absence of nickel and the coating resistance to corrosion, which meets modern regulatory requirements (EN 1811, REACH). The scientific novelty lies in the integration of environmentally friendly materials into jewelry production through the creation of a unique nickel-free alloy capable of meeting the requirements of safety, aesthetics and functionality.

Organisation of an effective system of lighting of public spaces to ensure the safety and orientation of residents in the city in conditions of increased danger

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and . Organisation of an effective system of lighting of public spaces to ensure the safety and orientation of residents in the city in conditions of increased danger//Science online: International Scientific e-zine - 2024. - №12. - https://nauka-online.com/en/publications/technical-sciences/2024/12/07-17/

Annotation: The article highlights the importance of urban public space lighting in ensuring safety and orientation for residents in high-risk environments. Proper lighting can reduce crime rates, improve orientation, and facilitate safe evacuation during emergencies. The study analyzes the use of intelligent lighting systems, energy-efficient technologies, and approaches to adapting lighting to various situations. It also describes collaboration with communities and authorities to enhance the efficiency of lighting systems.

Current trends in the development of technologies for optimizing shopping center ecosystems

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. Current trends in the development of technologies for optimizing shopping center ecosystems//Science online: International Scientific e-zine - 2024. - №12. - https://nauka-online.com/en/publications/technical-sciences/2024/12/05-20/

Annotation: In recent years, specialists and manufacturers have made significant progress in the search and selection of the most practical and efficient technical solutions aimed at the comprehensive optimization of fuel mixture preparation and delivery processes to combustion chambers of thermodynamic equipment within the infrastructure of smart homes. Experimental installations have been carried out on diesel engines, boilers, diesel generators, gas turbines, and other thermodynamic equipment used to equip fuel subsystems and supersystems within the smart home infrastructure and smart manufacturing facilities.

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