https://journals.uran.ua/eejet <p><span lang="EN-US">Terminology used in the title of the «Eastern-European Journal of Enterprise Technologies» - «enterprise technologies» should be read as «industrial technologies». <strong>«Eastern-European Journal of Enterprise Technologies»</strong> publishes all those best ideas from the science, which can be introduced in the industry. Since, obtaining the high-quality, competitive industrial products is based on introducing high technologies from various independent spheres of scientific researches, but united by a common end result - a finished high-technology product. </span>Among these scientific spheres, there are information technologies and control systems, engineering, energy and energy saving. Publishing scientific papers in these directions are the main development «vectors» of the «Eastern-European Journal of Enterprise Technologies». Since, these are those directions of scientific researches, the results of which can be directly used in modern industrial production: space and aircraft industry, instrument-making industry, mechanical engineering, power engineering, chemical industry and metallurgy.</p> <p><span lang="EN-US">Therefore, the scientists, associated with modern production, have the opportunity to participate in <strong>technology transfer to industry</strong>, publishing the results of their applied scientific researches. Industrialists, in turn, can draw scientific and practical information from the journal - each in their direction:</span></p> <ul> <li>specialists in management and computer science - from volumes «Applied Information Technologies and Control Systems», «Mathematics and Cybernetics - Applied Aspects»;</li> <li>mechanical and design engineers - from the volume «Applied Mechanics»;</li> <li>production engineers - from volumes «Mechanical Engineering Technology», «Applied Physics», «Materials Science», «Technology of organic and inorganic substances and the Ecology»;</li> <li>production and power engineers - from the volume «Energy-saving technology and equipment».</li> </ul> <p><span lang="EN-US"><strong>The goal of the journal</strong> is to eliminate the gap, which occurs between the rapidly emerging new scientific knowledge and their introduction in the industry, which requires much more time. Industrial enterprises are active subscribers to the «Eastern-European Journal of Enterprise Technologies», and production engineers check the practical value of those scientific and technological ideas, which are recommended for implementation by scientists-authors of the ''Eastern-European Journal of Enterprise Technologies».</span></p> <p><span lang="EN-US"><strong>The objective of the journal</strong> in achieving the goal is <strong>forming a «scientific component» of modern technologies transfer</strong> from science to industry. Therefore, in the papers, published in the journal, the emphasis is placed on both scientific novelty, and practical value.</span></p> <p>Registration of an entity in the media sector: Decision of the National Council of Ukraine on Television and Radio Broadcasting No. 695 dated August 10, 2023, protocol No. 17 (media identifier R30-01134).</p> en-US <p>The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.</p> <p>A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).<br />The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.<br />According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).<br />In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.<br />It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.</p> eejet@entc.com.ua (Frolova Liliia) eejet@entc.com.ua (Frolova Liliia) Wed, 07 May 2025 15:53:51 +0300 OJS 3.2.1.2 http://blogs.law.harvard.edu/tech/rss 60 https://journals.uran.ua/eejet/article/view/328828 <p>This study examines the strength characteristics of pine nut shells to enhance kernel extraction efficiency. Current methods have drawbacks, including high kernel damage, preheating, and excessive energy use. Laboratory tests using the ST-2 structural meter analyzed the shell's mechanical and rheological properties under varying moisture conditions.</p> <p>The most effective shell-breaking method without kernel damage (for nuts 10.8–11.4 mm in diameter) involves a 90° cone indenter at a shell moisture level of 16–17 %, with an average breaking force of 7.0 kg. Mathematical modeling determined that under an impact force of 49 N and deformation of 1.1–1.3 mm, the required fracture energy is 0.245 J. Finite element analysis in Inventor software confirmed a pre-fracture displacement of 0.016 mm, with stress uniformly distributed across the shell.</p> <p>A pendulum-based test rig studied shell fracture under impact loads. The optimal cracking mode was achieved with an impact mass of 40–60 g at a velocity of 35–40 m/s. A grooved impact surface (90°) with an L/D ratio of 0.4–0.6 reduced fracture energy by 10–15 %.</p> <p>Pre-acceleration in an air stream before impact caused the least kernel damage, but low aerodynamic resistance limited efficiency. To address this, a new device was developed, combining a rotating toothed disk for initial acceleration with a compressed air stream to achieve an optimal velocity of 35–40 m/s. This approach increased whole kernel yield by 15–20 %, reduced energy consumption by 10 %, and minimized product damage.</p> <p>The proposed method improves pine nut processing by increasing efficiency, reducing waste, and lowering costs. It is applicable in food and pharmaceutical industries for optimized kernel extraction while preserving product integrity</p> Ayat Khamitbek, Mir Butabayev, Ainura Kairbayeva, Sarsembek Oralbayev, Galymzhan Nasrullin Copyright (c) 2025 Ayat Khamitbek, Mir Butabayev, Ainura Kairbayeva, Sarsembek Oralbayev, Galymzhan Nasrullin http://creativecommons.org/licenses/by/4.0 https://journals.uran.ua/eejet/article/view/328828 Wed, 07 May 2025 00:00:00 +0300