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Rubric: Technical sciences

Use of environmentally friendly materials in modern jewelry production
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Bibliographic description of the article for the citation:

. 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.

Keywords: environmentally friendly materials gilding hypoallergenic jewelry production Nickel-free regulatory standards XRF analysis
Categories: Technical sciences
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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.

Keywords: energy efficiency intelligent systems lighting orientation public spaces safety безпека громадські простори енергоефективність інтелектуальні системи орієнтація освітлення
Categories: Technical sciences
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Current trends in the development of technologies for optimizing shopping center ecosystems
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Bibliographic description of the article for the citation:

. 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.

Keywords: Comprehensive Optimization Electromagnetic Resonance Spectroscopy Experimental Installation Logistics Principles in Management and Control Systems Shopping Center Ecosystem Smart Home Infrastructure Smart Manufacturing Facility Systematic Search Technology Development Trends Technology Improvement Thermodynamic Equipment
Categories: Technical sciences
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Fundamental issues of integrating innovative solutions
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. Fundamental issues of integrating innovative solutions//Science online: International Scientific e-zine - 2024. - №11. - https://nauka-online.com/en/publications/technical-sciences/2024/11/07-16/

Annotation: Fundamental Issues of Horizontal and Vertical Integration of Structural and Technological Solutions in the Context of the Complex Uncertainty of the Final Integrated Solution. Introduction. To ensure comprehensive protection of innovative technical ideas from uncontrolled borrowing and even copying, the non-obviousness of an idea for an average specialist in the technological field has immense significance in the context of an increasingly deepening globalization. This importance is further exacerbated by the specific and complex development of the idea and its gradual step-by-step transition from a pure idea to concrete interrelated technical solutions and their integrative penetration and technological diffusion from one technological field to other adjacent technological fields. A fundamental condition for such penetration is the shifting of boundaries between technological fields and the blurring of characteristics and properties of such boundaries. Purpose. As an example of the emergence and synthesis of this type of innovative idea, the author of this publication presents the development of an idea for contactless remote control and online monitoring of parameters and concentrations of technological solutions. The principle of the sensor-capsule design and the algorithm for its application are detailed, leading to the serial production of such sensor-capsules and their large-scale use in modern complex high-tech manufacturing, as well as in biological technologies, medicine, and agriculture. Materials and methods. At this point, the author finds it necessary to take a brief detour to analyze both macro and micro variants in the development and application of these technologies, considering the specifics of their use in various scales of application and the different conditions under which they are applied in modern smart manufacturing environments.

Keywords: Initial Conditions for the Search for New Innovations Innovative Technical Ideas Interrelated Technical Solutions Macro and Micro Variants of Technological Development Non-obviousness of Ideas for the Average Specialist Shifting Boundaries Between Technological Fields Synthesizing Innovative Ideas Technical Ideas Technological Field
Categories: Technical sciences
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