Technical Part Research Articles

New preparation method of microstructurally and mechanically standardized PETG specimens by material extrusion additive manufacturing and machining

Additive manufacturing processes are recent and lack standardized methods to characterize the mechanical properties of the printed material. Sample preparations in the literature consist in the direct printing of specimens, which induces uncontrolled interactions between printing conditions of the specimens and material properties. This study aims to develop a method for the specimen preparation to characterize the behavior of materials manufactured by material extrusion additive manufacturing. The proposed method consists in preparing printed plates from polyethylene terephthalate glycol-modified filament into a unique design before machining out specimens at different orientation angles. A comparison to directly printed specimens at the same orientation angles is performed to confront the proposed method to a commonly used one in the literature, and to understand the cause of discrepancies and the lack of predictiveness in additive manufacturing. The prepared specimens are characterized by X-ray tomography and tensile tests to assess process-structure-property relationships. The analysis highlights the structure heterogeneity of the as-printed specimen compared to the machined one, which influences the mechanical properties of the specimen. The new hybrid additive-subtractive preparation method for the specimen limits the superimposed thermo-kinetic effects caused by changes in deposition strategy, including coalescence and flow instability, and allows to measure effective mechanical properties based on a homogenized multiscale structure that is more representative of large parts. In addition, machining smooths the surface without thermal alterations, which leads to more accurate mechanical testing regarding cross-sectional area measurement, crack initiation and fracture mode. The proposed method is thought to standardize the preparation of additively manufactured materials based on extrusion to ease comparison between studies, to help the qualification of technical and industrial parts, and to measure intrinsic material’s properties based on a controlled microstructure for understanding of the process-related behavior and properties of material.

Internal factors, external factors and behavioral intention toward food delivery apps (FDAs)

PurposeFood delivery apps (FDAs), as a well-known technology, have been widely adopted by restaurants and customers. Different from existing studies in this field that mainly focused on the technical (internal) parts, the study aims to introduce a new framework by linking up technical (internal) factors and service-related (external) factors in the context of FDAs. This study also empirically analyzes a comprehensive model that identifies the impacts of internal and external factors in FDAs on the continuous use intention.Design/methodology/approachThis study proposes a comprehensive model integrating internal and external factors with a sample of 498 respondents who had ordered or purchased food through delivery apps for the partial least squares structural equation modeling (PLS-SEM) analysis.FindingsThe results of the study show that time-saving is the most significant factor on customers' perceptions, and various food choices and usefulness have also direct positive impacts on perceived value and satisfaction. In addition, perceived value shows a stronger effect than satisfaction on customers' continuous usage.Originality/valueThese findings provide a new perspective on FDAs, which not only simplify the elements of FDAs but also classify internal and external factors to foster the theoretical and practical development. Ultimately, the model proposed and validated in this study can serve as the basis for future FDAs and other service apps development.

Optimization of purchasing business process in Moroccan public universities based on COBIT and artificial intelligence techniques

PurposeThe main goal of this research work is the optimization of the purchasing business process in the Moroccan public sector in terms of transparency and budgetary optimization. The authors have worked on the public university as an implementation field.Design/methodology/approachThe design of the research work followed the design science research (DSR) methodology for information systems. DSR is a research paradigm wherein a designer answers questions relevant to human problems through the creation of innovative artifacts, thereby contributing new knowledge to the body of scientific evidence. The authors have adopted a techno-functional approach. The technical part consists of the development of an intelligent recommendation system that supports the choice of optimal information technology (IT) equipment for decision-makers. This intelligent recommendation system relies on a set of functional and business concepts, namely the Moroccan normative laws and Control Objectives for Information and Related Technology's (COBIT) guidelines in information system governance.FindingsThe modeling of business processes in public universities is established using business process model and notation (BPMN) in accordance with official regulations. The set of BPMN models constitute a powerful repository not only for business process execution but also for further optimization. Governance generally aims to reduce budgetary wastes, and the authors' recommendation system demonstrates a technical and methodological approach enabling this feature. Implementation of artificial intelligence techniques can bring great value in terms of transparency and fluidity in purchasing business process execution.Research limitations/implicationsBusiness limitations: First, the proposed system was modeled to handle one type products, which are computer-related equipment. Hence, the authors intend to extend the model to other types of products in future works. Conversely, the system proposes optimal purchasing order and assumes that decision makers will rely on this optimal purchasing order to choose between offers. In fact, as a perspective, the authors plan to work on a complete automation of the workflow to also include vendor selection and offer validation. Technical limitations: Natural language processing (NLP) is a widely used sentiment analysis (SA) technique that enabled the authors to validate the proposed system. Even working on samples of datasets, the authors noticed NLP dependency on huge computing power. The authors intend to experiment with learning and knowledge-based SA and assess the' computing power consumption and accuracy of the analysis compared to NLP. Another technical limitation is related to the web scraping technique; in fact, the users' reviews are crucial for the authors' system. To guarantee timeliness and reliable reviews, the system has to look automatically in websites, which confront the authors with the limitations of the web scraping like the permanent changing of website structure and scraping restrictions.Practical implicationsThe modeling of business processes in public universities is established using BPMN in accordance with official regulations. The set of BPMN models constitute a powerful repository not only for business process execution but also for further optimization. Governance generally aims to reduce budgetary wastes, and the authors' recommendation system demonstrates a technical and methodological approach enabling this feature.Originality/valueThe adopted techno-functional approach enabled the authors to bring information system governance from a highly abstract level to a practical implementation where the theoretical best practices and guidelines are transformed to a tangible application.

Development of the Ambulance 3.0 platform application

The article examines the application of the platform approach to solving the problem of optimizing the work of emergency medical services in the city of Yekaterinburg with a population of over a million. This project is especially relevant due to the ambulance operators and crews’ heavy workload associated with seasonal increases in the morbidity rate, the COVID-19 pandemic and other crisis situations. The goal of the study is to solve the aforementioned problems by means of developing a highly specialized but also functional service as well as ensure the possibility of using it in the post-pandemic era. The author of the article points out that current realities make it especially important to create such application because while relevant Russian studies do not pay proper attention to emergency medical services issues, the use of foreign counterparts is not possible for various reasons, including that of the large amount of confidential data that require processing. It is expected that in case the technical and software parts of the project are implemented successfully, the application described in the study will allow to achieve all the objectives set and ensure the improvement of the socio-economic situation of Yekaterinburg.

Основные меры государственной промышленной политики в фармацевтической отрасли Российской Федерации

Due to the changes in the modern world, it is necessary to develop the domestic pharmaceutical industry, which is a task especially important in the context of implementation of the import substitution policy. The article classifies the main measures the state industrial policy has for the pharmaceutical industry; these measures cover informational and consulting aspects, research and technical parts, innovations and economic matters. Practical actions and their possible consequences are considered for each group of the industrial policy measures: encouragement of domestic consumption, regulation of imports, stimulation and support of exports, stimulation of technological development, public-private partnerships, support of the development of intersectoral territorial production complexes (clusters), direct state support of investment activities, tax incentives for investors.

Formulation of expert consensus on clinical application of external ethnic medicine: taking Baimai Ointment as an example

The concept of ethnic medicine is divided into a broad sense and a narrow sense. The broad concept refers to the traditional medicine of the Chinese nation, and the narrow concept refers to the traditional medicine of Chinese ethnic minorities. The external medicine is one of the main forms of ethnic medicine, and it is also the important content of ethnic medicine for external use, which is widely used in clinical practice. As the theory of ethnic medicine is unique, the application methods have certain characteristics, which are the key technical parts of clinical practice. However, the existing traditional Chinese medicine consensus formulation me-thods cannot meet the needs of the consensus formulation of the external ethnic medicine. Therefore, the methods suitable for expert consensus on external ethnic medicine are required. This article took Expert opinion on clinical application of Baimai Ointment as an exa-mple, and explorde a reasonable, effective, multi-dimensional, and multi-stage method to formulate expert consensus on the external ethnic medicine. In this research, three-dimensional sources of information, including ancient classics, clinical research evidence, and expert application experiences, were systematically and scientifically collected. After organization and analysis, the information was formed into comprehensive evidence. In a formal consensus meeting, part of the recommendations reached consensus. As to the issues that did not reach agreement, in-depth interviews were used to explore the reasons for the differences and resolve the disagreements. Finally, unanimous recommendations were reached. There are common problems during the formulation process of Expert opinion on clinical application of Baimai Ointment. This study is expected to provide references for the formulation of expert consensus on other external ethnic medicine.

Интегрированная платформа мониторинга водной среды прудового хозяйства

The article highlights the problem of integrated monitoring of the aquatic environment, which is technical part of monitoring the aquatic environment. It includes the information management module, a module for analyzing and evaluating the aquatic environment, a module for early warning and forecasting the state of the aquatic environment, 
 a module for integrated monitoring of the aquatic environment, a geographic information system (GIS) and a module 
 of data monitoring. The above problem includes preventing the spread of pollution in areas and elements with potential safety hazards by periodically collecting information about each sub-area (information about pollution sources around each monitoring point). The quality of water at monitoring points is assessed, the trend of water quality deterioration is analyzed, a forecasting model is built that allows preventing dangerous processes in advance, identifying the area of pollution of the aquatic environment and the level of pollution, as well as accurately assessing the scale of the accident, timely processing the incoming information and taking the effective measures against the emergency consequences. Due to using the proposed platform integrated monitoring of the aquatic environment is improved.

Nasal residence time and rheological properties of a new bentonite-based thixotropic gel emulsion nasal spray – AM-301

Objective The present work provides characterization of rheological properties of a new bentonite-based thixotropic gel emulsion nasal spray (AM-301), its nasal residence time, distribution, safety and tolerability. Significance The nasal epithelium is a portal of entry for allergens and primary infection by airborne pathogens. Non-pharmacological interventions, which enhance physical and biological barriers, protect against allergens and pathogens without drug-related side effects. AM-301 has shown promising efficacy and safety in the nasal epithelium against viruses (in vitro) and pollen (clinical). Methods Technical part (i) spray characterization was performed with a validated droplet size distribution method; evaluation of the rheological properties of the formulation was performed by a validated amplitude sweep method and a validated oscillation, rotation, oscillation; Clinical part (ii) nasal and oropharyngeal endoscopy were used to provide a semi-quantitative evaluation of distribution and residence time of fluorescein-labelled AM-301 in the nose and oropharynx of healthy volunteers; (iii) tolerability and safety. Results (i) The non-Newtonian rheological properties of the formulation allow AM-301 to be sprayed and then to revert to a gel to prevent run-off from the nasal cavity; (ii) the formulation remains on the inferior turbinate, septum and oropharynx of volunteers for up to 210 min and on the middle turbinate for up to 60 min; two nasal sprays provide no substantial benefit over a single application with regards to coverage or retention; (iii) the spray is well tolerated Conclusions Single dose spray delivery of AM-301 provides extended coverage of the nasal mucosa up to the inferior turbinates.

Peculiarities of stems flattening at two-phase fiber flax harvesting technology

BACKGROUND: Based on the analysis of the morphological features of fiber flax, authors focus on the technical part of the stem, which contains fiber. To improve the quality and for most complete isolation of this product, the process of tissue maceration should be stimulated by stem flattening.
 AIMS: Search of methods and means of obtaining the maximum effect from the use of two-phase flax harvesting technology, by ensuring uniform flattening along the entire technical length of the stems, starting from the earliest stages of harvesting.
 METHODS: It is noted that the greatest effect of flattening can be achieved with two-phase flax harvesting. However, all known methods and devices involve a time gap between the flattening of different parts of a plant, which leads to a delay in the onset of maceration in untreated parts of a stem, delaying harvesting and reducing the quality of the fiber. Therefore, stems should be flattened immediately along their entire technical length at the earliest stages simultaneously with the pulling of flax, without flattening only the remaining part of the total length of plants, on which seed pods are located.
 RESULTS: It has been found that the size of the flattening zone in the plant ribbon is not constant. Therefore, in order to reduce the likelihood of damage to seed bolls by flattening rollers with maintaining the high accuracy of the implementation of the proposed method, it is necessary to place the upper edge of the flattening rollers at the level of the upper limit of the technical length of plants, to form a stem stand, uniform in height, with a compact area of seed bolls, reduce the galloping of flax harvesters when moving over irregularities of field surface and use such working bodies that provide the minimum longitudinal shift of the stems in the formed ribbon.
 CONCLUSIONS: An analysis of the existing means of mechanization showed that preference should be given to the TLP-1.5K trailed flax puller, which is lighter and cheaper and should be equipped with a flattening machine, in order to implement the proposed method.

ALEKSANDR I. SELIVANOV - FOUNDER OF THE AGING THEORY OF MACHINES

Academician of VASKhNIL Alexander Ivanovich Selivanov is the founder of the theory of aging of machines. The analysis and study of technology research in the process of its consumption and aging is an urgent task. (Research purpose) The research purpose is outlining the life path of A.I. Selivanov and analyzing his scientific activities. (Materials and methods) Reviewed the published works of academician A.I. Selivanov, publications of contemporaries, his students and colleagues, archival documents. (Results and discussion) They described in detail the life path of Academician A.I. Selivanova from high school graduation, education, and the beginning of scientific activity within the walls of VIM. It was noted that A.I. Selivanov took part in the Great Patriotic War as an assistant commander of a separate tractor battalion in the technical part. He had military awards. We evaluated the results of his activities in the post-war years to restore worn-out cars with the development of standard repair technology, for this work, A.I. Selivanov, together with his staff, was awarded the Stalin Prize. The role of A.I. Selivanov in the creation of the Institute of State University was shown. They indicated the topics and dates of the defense of the candidate’s and doctoral dissertations. Special attention was paid to the analysis of the work and the results obtained on the creation of the «Agricultural Machinery» system. They noted the scientific and pedagogical activity of academician A.I. Selivanov. (Conclusions) A.I. Selivanov became one of the largest authorities in the field of durability and repair of agricultural machinery. Many of his books and articles have been translated and published abroad. In total, he has published more than 200 printed works. For his labor merits, he was awarded the Order of the Badge of Honor, two Orders of the Red Banner of Labor, and many medals. Effective processes of restoration of worn parts, cleaning them from contamination before defecation and assembly, methods and means of diagnostics, maintenance and storage of machines have been introduced into economic practice.

INFORMATION COUNTERFEATURE: MODELS OF IMPLEMENTATION AND EVALUATION OF INFORMATION OPERATIONS

Life activity of modern large socio-technical systems, which consist of two components: technical and social parts, takes place in a competitive information space. Therefore, the information security of such systems in general, in particular of the state, largely depends on the level of societysecurity. Special destructive informational and psychological operations conducted against the social component of the sociotechnical system pursue the main goal of informational struggle, namely: changing its state by reprogramming the society consciousness (the social part of sociotechnical systems). One of the ways to implement a special information operation is the use of a specially prepared conditional unit of information, such as a meme, which spreads in the information space by the using of influence various channels and performs the function of actually "infecting" the social part of socio-technical systems. The problems that must be solved in order to achieve the goal of destructive informational and psychological influence are considered. The main stages of preparation and implementation of an informational and psychological operation are also given. A structural model of the processes involved in the implementation of information warfare is developed. The article proposes a model for the implementation of a special informational and psychological operation, which is built,based on the Bernoulli formula and allows obtaining a probabilistic assessment of the effective implementation of an informational and psychological operation. In addition, further analysis of the developed model allows getting an assessment of the effectiveness of conducting a special informational and psychological operation. The effectiveness of the conducted special informational and psychological operation is evaluated byusing the probable number of social partelements, which, under the influence changed its initial state, and, as a result, the entire socio-technical system came out of equilibrium. The proposed models are can be used in solving the forecasting the risks problems of conducting special informational and psychological operations and, accordingly, building a system for counteracting destructive informational and psychological influences.

The nitriding effect on the stability and mechanical properties of the iron titan phase: first-principles investigation.

To control the nitriding effect, which is used to enhance the mechanical properties of surfaces, a fundamental understanding of this effect is required. Modern quantum-mechanical simulation methods make it almost impossible to perform cost effective and reliable studies on the mechanisms of the influence of nitrogen on surfaces. In this work, based on density functional theory calculations, the nitriding effect on the structure and mechanical properties of titanized steel was studied using a FeTi model. Two cases of the nitrogen presence in the Fe-Ti crystal are considered: uniform distribution and nitrogen clustering. Based on the formation energy calculations and the crystal orbital Hamilton population analysis, it is found that higher stability of FeTi is achieved at low concentrations of nitrogen up to 5.4% when nitrogen atoms are uniformly distributed, while upon clustering of nitrogen, FeTi becomes more stable at higher concentrations of nitrogen from 3.7% to 7.4%. The mechanical properties of nitrogen-containing FeTi suggest that Young's modulus and shear modulus increase with an increase of the concentration of nitrogen up to 5.4%. These findings not only deepen our fundamental understanding of the nitriding effect in titanized Fe-based steels but also offer valuable insights essential for carrying out an experimental study of various end products such as technical machine parts or medical implants, endowed with improved surface properties.

The world wide web of carbon: Toward a relational footprinting of information and communications technology's climate impacts

The climate impacts of the information and communications technology sector—and Big Data especially—is a topic of growing public and industry concern, though attempts to quantify its carbon footprint have produced contradictory results. Some studies argue that information and communications technology's global carbon footprint is set to rise dramatically in the coming years, requiring urgent regulation and sectoral degrowth. Others argue that information and communications technology's growth is largely decoupled from its carbon emissions, and so provides valuable climate solutions and a model for other industries. This article assesses these debates, arguing that, due to data frictions and incommensurate study designs, the question is likely to remain irresolvable at the global scale. We present six methodological factors that drive this impasse: fraught access to industry data, bottom-up vs. top-down assessments, system boundaries, geographic averaging, functional units, and energy efficiencies. In response, we propose an alternative approach that reframes the question in spatial and situated terms: A relational footprinting that demarcates particular relationships between elements—geographic, technical, and social—within broader information and communications technology infrastructures. Illustrating this model with one of the global Internet's most overlooked components—subsea telecommunication cables—we propose that information and communications technology futures would be best charted not only in terms of quantified total energy use, but in specifying the geographical and technical parts of the network that are the least carbon-intensive, and which can therefore provide opportunities for both carbon reductions and a renewed infrastructural politics. In parallel to the politics of (de)growth, we must also consider different network forms.

AMRexpert – online platform for interpretation, verification and validation of antimicrobial susceptibility testing

Objective. To review the key principles and functionality of AMRexpert online platform. Materials and Methods. The information part of the platform is comprised of rules based on the EUCAST recommendations and various standards for interpreting the results of antimicrobial susceptibility testing (EUCAST, CLSI versions 2020-2022). The technical part of the platform was developed using C# programming language, Angular and Bootstrap frameworks. AST results of Serratia marcescens, Pseudomonas aeruginosa, Staphylococcus saprophyticus, Enterococcus faecium specific isolates were analyzed for practical testing of the platform using EUCAST v.12.0, 2022 interpretation criteria. Results. The developed platform for the evaluation of microbiological reports includes a wide list of expert rules, various standards for the interpretation of the AST results. Consistent data input, the ability to switch forms between several microorganisms, and the presentation of evaluation results in the form of blocks allows all necessary information to be structured. Practical use of the platform is available for various infectious pathogens. Fast and efficient interaction between users is provided by different options for sharing and saving the results. Conclusions. The web-based application evaluates microbiological reports in a comprehensive approach, with the ability to apply the results later to prescribe antimicrobial therapy. The platform for the interpretation, verification and validation of the AST results – AMRexpert can be accessed at https://amrexpert.ru.

TECHNICAL AUDIT OF SECURITY OF INFORMATION - TELECOMMUNICATION SYSTEMS OF ENTERPRISES

The content of the audit and vulnerability testing of the information and telecommunication system (ITS) of any enterprise is considered. Based on the results of the information security audit, the overall security of the company's ITS is assessed. It is proposed to assess the security of IT using penetration testing in the following areas: penetration testing from outside and inside the information infrastructure, social engineering testing of the company's personnel and testing for resistance to DDoS attacks; assessment of the security of the mobile application, web resource and wireless networks. The proposed general algorithm for IT infrastructure penetration testing (analysis of vulnerabilities and security of information resources) in the form of stages: initialization, passive and active intelligence, operation and post-exploitation, systematization and presentation of the results of security assessment, risk and vulnerability assessment, recommendations regarding them elimination. In stages all operations are carried out without causing real damage to the ITS. The purpose of a technical audit is shown, which covers the components of the ITS and can be considered as an independent examination or a procedure for their investigation in order to assess the condition and identify reserves. Technical audit as a result of checking the software and technical part of the resource provides an opportunity to form a list of key problems and get comprehensive recommendations for their elimination. It is noted that in accordance with modern requirements, technical audit can be used as an audit in the form of remote technical support, and information security audit can be considered as a variant of technical audit. Conducting an information security audit includes: analysis of risks associated with the possibility of information security threats to resources; assessment of the current level of ITS security; localization of "bottlenecks" in the ITS protection system; assessment of ITS compliance with existing standards in the field of security; providing recommendations on the implementation of new and improving the effectiveness of existing ITS security mechanisms. The content of the detailed report of the technical audit of the enterprise's ITS security has been revealed.

DEVELOPER – DETERMINING CRITERIA AND ITS PLACE IN BUSINESS

The work explores the current direction of project activity, aimed at the developing territories and transforming land (real estate) into a new uses (development). The purpose of the article: to show real estate development as continuous changes (reconstruction, new development) of the environment to meet the society's needs as well as the developer role in the development of territories and the main features that define the concept of a developer. Results: Development stages, the tasks of the developer and his position in relation to other participants and the results of development, as well as professional competencies of the developer at the stages of real estate building, which are important for development tasks, were considered. It is shown that in order to perform its functions, the developer will need to build appropriate relationships with participants at all stages of real estate building. To establish communications at a professional level with all participants, general knowledge of project management or marketing will not be sufficient. The land acquisition procedure, the “technical part” of the tender documentation, pre-qualification, contract negotiations, ordering technical conditions and obtaining permits, construction (supervision) require the developer to have engineering and professional knowledge, special competencies and professional construction education. It is shown that the authors of publications on the research topic in the definition of "developer" usually indicate what the developer does at the stages of real estate object building. It is indicated, the developer-entrepreneur, receiving his profit from the real estate object building (development); the main task of the developer is to maximize the value of the object. It also indicates the scope of responsibility and functions of the developer. This work shows that the key in defining the concept is not what the developer does at all stages of real estate building, but his attitude towards the results of the project. The developer is the owner of the project, creates the development object and implements it with maximum profitability. It is shown that the features that are defining for the concept of “developer” include: authorship of an idea, concept; ownership of the land plot where the project is implemented and the real estate object; personal responsibility for achieving project results; organization of functioning; accounting, coordination and payments; receives benefits from the realization of the real estate object.

Technical details of thoracic endovascular aortic repair with fenestrations for thoracic aortic pathologies involving the aortic arch: A Chinese expert consensus.

Thoracic aortic pathologies involving the aortic arch are a great challenge for vascular surgeons. Maintaining the patency of supra-aortic branches while excluding the aortic lesion remains difficult. Thoracic EndoVascular Aortic Repair (TEVAR) with fenestrations provides a feasible and effective approach for this type of disease. The devices needed in the procedure are off-the-shelf, with promising results reported in many medical centers. Up until now, there have been no guidelines focusing exclusively on the details of the TEVAR technique with fenestrations. Experts from China have discussed the technical parts of both in situ fenestrations (needle and laser) and fenestrations in vitro (direction inversion strategy and guidewire-assisted strategy), providing a technical reference to standardize the procedure and improve its results.

The Cup Whisperer

The Cup Whisperer

An open-source LED array illumination system for automated multiwell plate cell culture photodynamic therapy experiments

Photodynamic therapy (PDT) research would benefit from an automated, low-cost, and easy-to-use cell culture light treatment setup capable of illuminating multiple well replicates within standard multiwell plate formats. We present an LED-array suitable for performing high-throughput cell culture PDT experiments. The setup features a water-cooling loop to keep the LED-array temperature nearly constant, thus stabilizing the output power and spectrum. The setup also features two custom-made actuator arms, in combination with a pulse-width-modulation (PWM) technique, to achieve programmable and automatic light exposures for PDT. The setup operates at ~ 690 nm (676–702 nm, spectral output full-width half-maximum) and the array module can be readily adapted to other LED wavelengths. This system provides an illumination field with adjustable irradiance up to 400 mW/cm2 with relatively high spectral and power stability comparing with previously reported LED-based setups. The light doses provided by the LED array were validated with comparison to traditional laser PDT. This open-source illumination platform (including the detailed technical description, fabrication protocols, and parts list provided here) helps to make custom light sources more accessible and of practical use for photomedicine research.

Core Ontology for Describing Production Equipment According to Intelligent Production

This article presents the development of a core ontology for describing knowledge about the technological and technical parts of a production plant, in particular, theoretical knowledge for monitoring, diagnosing and forecasting of production equipment, taking into account the concept of Industry 4.0. This study is related to the definition of terms and their relationships for the processing industry in the core ontology. The core ontology is the basis for the development of domain and application ontologies, which create conditions for the system solution for the complex problems of operating industrial equipment. It consists of an ontological classification of core concepts according to the fundamental basic formal ontology. The essences of BFO were specified and revealed by methods of decomposition and generalization according to generally accepted structures of industrial enterprises. The proposed ontology contains 33 classes, 7 object properties and 34 individuals. The ontology is conceptually transparent and semantically clear, so it is suitable for theoretical knowledge transfer, sharing and retrieval. The ontology is implemented in the OWL language and validated. This article provides examples of requests for work with ontology, which prove the effectiveness of its use in industrial enterprises.