Maintenance Of High Quality Research Articles

Оценка нагрузок приводов рабочего оборудования карьерного экскаватора (часть 1)

One of the major tasks in carrying out open-pit mining operations is timely and high quality maintenance and repair of mining equipment, in particular, mechanical shovels, which secures a required availability level. The most loaded are the lift and pressure drives of the shovel's working attachments, which significantly increases the risk of failure of their components. An adequate assessment of the loads acting on these drives through analyzing the changes in currents and voltages of their motors makes it possible to adjust the time between maintenance. In the course of the study, the representative points of the following three lumped working processes were obtained within the working cycle of 26.75 s: excavating; platform rotation with simultaneous movement of the shovel from the upper point of the path to the unloading point; reverse movement of the platform rotation mechanism with the returning and its positioning of the working attachment to the initial position. Changes in forces acting on the ropes of the lifting winch of the shovel were determined based on the evaluation of the obtained layout of the working attachment positions for the EKG-18R mechanical shovel and taking into account the driving and motion resistance forces within the working cycle. Analysis of the obtained force values acting on the ropes of the lifting winch at the three linear excavation paths with the inclination angles of 60, 70 and 80° has shown that the lowest forces in the lifting winch rope occur at the closest path with the angle of 60°. The received data will allow not only to select a rational path and the angle of bench mining, but also to adjust the time between maintenance according to the actual operating time of the lifting, pressure and movement drives.

МАТЕМАТИЧЕСКАЯ МОДЕЛЬ ОРГАНИЗАЦИИ ТЕХНИЧЕСКОГО СЕРВИСА

A wide range of agricultural machinery in need of high-quality maintenance throughout the entire operational period to ensure uninterrupted and efficient operation is one of the most important links in the agro-industrial complex. (Research purpose) The research purpose is developing a mathematical model showing the relationship between the conduct of maintenance activities and the unit of equipment of the agricultural fleet; within the framework of the obtained mathematical model, deriving a criterion assessment of the quantitative conduct of maintenance. (Materials and methods) Indicated that such estimates can be obtained by applying mathematical modeling. A mathematical model was constructed using a visual diagram reflecting the relationship between the machines of the agricultural park, types of maintenance, elements of set theory and mathematical analysis. We used the theory of sets, which allowed us to move from the units of equipment of the fleet of agricultural machines to an analytical representation of realities and derive a constant that gives an assessment of maintenance depending on the number of activities carried out during the time interval under consideration. (Results and discussion) It was noted that it is necessary to improve the quality of maintenance by improving the control of its implementation in real conditions. The novelty of this work consists in the originality of the obtained scheme linking the types of maintenance and the machines of the agricultural fleet, without being tied to the number of units of equipment; in the development of a mathematical model that allows, using theoretical calculations, contributing to improving the control of maintenance activities by obtaining a universal constant that quantifies for any type of equipment and maintenance. The theoretical results were tested using the Kirovets-739 tractor as an example. (Conclusions) We obtained a schematic representation of the relationship between the components of the machine and tractor fleet and a numerical estimate reflecting the number of completed scheduled maintenance steps during the time period under study when using mathematical methods in the organization and conduct of maintenance.

METHODS OF TECHNICAL DIAGNOSTICS OF MILITARY AUTOMOTIVE EQUIPMENT SAMPLES

The article is devoted to the importance of modern diagnostics of military automotive equipment (MAE) in Ukraine to ensure timely and high-quality maintenance and repair, especially amid the full-scale invasion and a large-scale war. With the increasing number of the latest models equipped with advanced electronic systems, the demand for qualified specialists and equipment for their diagnostics maintenance and repair is growing. The article examines recent research and publications in this field, and discusses maintenance and repair strategies, as well as the potential for implementing the latest diagnostic technologies in the Armed Forces of Ukraine. Special attention is given to diagnosing Soviet-made samples and the necessity of developing universal methods to ensure their effective maintenance and repair. The article analyzes the capabilities of computer diagnostics of automobile systems as well as provides a detailed analysis of sensors that allow you to determine the current technical condition of a vehicle.
 In addition, the article describes a motor testing device, its technical capabilities as for computer diagnostics of vehicles that are not equipped with sensors.
 The results of technical diagnostics of a military vehicle using a motor testing device are also presented.
 The article highlights the importance of developing a universal methodology for technical diagnostics that would take into account recent achievements and a high-level of diagnostics for MAE samples of the Ukrainian Armed Forces. A universal methodology for effective diagnostics of the MAE samples of the Armed Forces of Ukraine is proposed. The methodology is based on a detailed description of computer diagnostics, taking into account the importance of the motor tester and the research conducted with its assistance.

Dynamics Changes of Total Bacteria in the Recirculating Aquaculture System (RAS) of Koi Fish (Cyprinus rubrofuscus)

Koi fish (Cyprinus rubrofuscus) is one of the aquaculture commodities that is highly marketable because of its unique color pattern and body shape. The prevalence of parasites and pathogenic agents in Koi fish among farmers poses challenges and leads to the occurrence of numerous illnesses. Water quality management is implemented in an effort to prevent several infectious microorganisms. The application of a recirculation system is used to enhance water quality and bolster the disease resistance of Koi fish. The objective of this study was to evaluate the application of RAS technology in the koi fish culture under different filter media on bacterial density. This study used four treatments, namely treatment A (RAS with a dacron filter and pumice), B (RAS with a dacron filter and sand), C (RAS with a sand and pumice filter), and K (control without a recirculation system). The parameter observed in this study was the density of bacteria in the koi fish rearing-media. These findings demonstrated that the utilization of various filters had an impact on bacterial density. Treatment C (RAS with sand and pumice filter) exhibited the greatest bacterial density with an average value exceeding 3.4 log CFU. mL-1 from the first week to the third week. The density of nitrifying bacteria in the koi fish production system is positively influenced by the high-quality maintenance practices that are maintained under optimal conditions.

Математическая модель организации обслуживания и ремонта грузовых вагонов

The strategic brand of any company is based on customer orientation. With regard to the carriage component of the transportation process, the consumer expects to meet the needs for technically sound rolling stock on constant basis. Timely high-quality maintenance and repair of freight cars guarantee the quality of transport services. The elimination of losses in the technological process of rolling stock maintenance significantly increases the competitiveness of railway transport and has a positive effect on state economic stability. The controllability optimization of the technological complex of freight cars maintenance and repair inevitably increases the efficiency of the transportation process due to a systematic approach to the organization of work related to the maintenance of the life cycle of rolling stock. Mathematical support tools, including the complex of mathematical methods, models and algorithms applied to solve the problems of rational technological processes organization, and can significantly narrow the search for optimal output and eliminate unnecessary losses when updating technology.

Information and diagnostic tools for monitoring units of agricultural machinery

The issues of assessing the increase in the efficiency of domestic agricultural machinery according to the criteria of suitability for maintenance and diagnostics and the development of measures to improve it are relevant, as they have a significant impact on the reliability and total cost of ownership and resource of saving during operation. It should be noted that not only the costs of maintenance and repair, but also the time spent in an inoperative state, technical readiness, productivity and other indicators of the efficiency of use for its intended purpose, including resource-saving impacts, depend on the level of equipment adaptability. The purpose of the research was to describe the state of the issue and justify the need to develop information and diagnostic tools for assessing the general technical condition of energy-intensive tractors. The analysis and description of the developed tools for diagnosing agricultural machinery have been done in the work. Similar control and diagnostic equipment produced by third-party manufacturers for agricultural machinery was considered. The distinctive features of our own developments were determined and the need to diagnose specific parameters was also reflected. As a result of the work 3D modeling of the device data was carried out. Then they were designed in special software and the first prototypes were assembled. The tests have proven the possibility of developing such digital diagnostic of device. The data obtained on the base of their effectiveness was reflected and justified. A number of improvements to these systems have been proposed. The results of the operation of all information and diagnostic devices were summed up. Further development of this area of work has been proposed for more modern and high-quality maintenance of units and assemblies of agricultural machinery.

PHYTODESIGN IN THE INTERIOR OF PUBLIC CATERING ESTABLISHMENTS: DOMESTIC AND INTERNATIONAL PRACTICES

The article highlights the topic of the use of phytodesign methods in the interior of public catering establishments, analyzes the modern world experience in the interior design, as well as the development of phytodesign in our country, identifies its common and distinctive features, and characterizes advantages and disadvantages of the vertical gardening in the interior design of restaurants. Functions of phytodesign in the interior of public catering establishments are identified and the specifics of selection of plants for the vertical gardening in this type of the interior are outlined. Design of the restaurant interior is one of the most important aspects of the catering industry that greatly impacts the success of an establishment. Restaurant owners should make sure that their customers feel comfortable and want to come back to their establishments. This desire depends on many factors, such as tasty cuisine, friendly staff, ingenious and cozy interior, special atmosphere, and a unique company style. The professional use of the greenery in the restaurant interior design encompasses implementation of the author’s concept in the interior decoration with the careful selection of plants based on the planned idea. It is important to ensure the proper and timely care of the greenery and its high-quality maintenance. Phytowalls or vertical gardening are gaining more and more popularity nowadays, since such vertical garden looks very stylish and effective. The use of the greenery is a complex tool and design method that allows to solve a number of tasks in various types of interiors. Public catering is one of the most dynamically developing branches of the economy. In the process of planning and design of the interior, the main focus should be placed on leveraging of the latest achievements of science, technology and equipping with the progressive devices. Having analyzed the analogues of restaurant interior design with the use of phytodesign tools, we should note that domestic analogues of interiors do not fully use the entire range of greenery constructions in public catering establishments. The use of such elements is currently gaining popularity. Moreover, most of the mentioned establishments use the container gardening, while vertical constructions are formed only as an addition. Foreign analogues are an excellent example of well-selected greening practices. Design studios are resorting to more complex greenery methods, such as living plant walls and the use of ampelous hanging plants in ceiling constructions. An increased use of phytodesign tools in the interior of public catering establishments will allow them to gain priority and be more competitive as compared to establishments with a different design concept. Keywords: interior design, phytodesign, vertical gardening, container gardening, living walls, plants, public catering establishments

IMPROVING THE ORGANIZATION OF CENTRALIZED RESTORATION OF AGRICULTURAL EQUIPMENT PARTS

Effective use of machines largely depends on timely and high-quality maintenance and repair. Due to the increase in the volume of restoration of units and aggregates at specialized enterprises, an opportunity was created in the workshops of farms and collective farms to more widely apply the aggregate method of restoration and repair. Improving the organization of centralized restoration of damaged parts makes it possible to restore tens of millions hryvnas worth of parts in a year. The organization of centralized delivery of material and technical means to farms is applied using the services of equipping farms with the necessary equipment in assembled, adjusted and run-in form. Increasing the level of concentration of repair production, deepening its specialization will allow to significantly improve the quality of repair, to bring the resource of repaired machines, tractors, combines and aggregates up to 80%. Before repairing driven discs of clutches of tractors, cars, combines, to replace friction linings, it is necessary to carry out operations of drilling, riveting and knocking off old linings. These operations require a lot of labor and the use of additional tools, which leads to significant capital investments. The paper proposes a device for cutting the fastenings of the friction linings of the driven clutch discs. Taking into account the conditions of agricultural enterprises, which have repair workshops, and the presence of vertical boring and milling machines, it is proposed to organize their use for the operation of removing worn friction linings. For riveting of friction linings of driven clutch discs, the development of a hydraulic stand is proposed, which can be made from standard units in the workshops of agricultural enterprises. Using this stand will make it possible to increase labor productivity when performing this operation and reduce its time.

Выращивание березы на вырубках с применением гербицидов

Birch, being one of the main forest-forming tree species, has valuable and soughtafter timber. In production forest conditions, natural regeneration and crops of this species experience strong competition from both grass cover and undesirable hardwoods (aspen, gray alder and willow). Without carrying out high-quality maintenance (agrotechnical care, clearing), the formation of economically valuable birch forests is impossible. The most effective and economical is the chemical care method, which involves the use of modern environmentally friendly herbicides. However, if technological regulations and practical recommendations for the use of herbicides have already been developed for the care of coniferous species (pine, spruce and others), then there are currently no such recommendations for birch. The aim of the research is to develop a scientifically based method of caring for natural young birch stands (clearing, agrotechnical care) using selective herbicides on forest fund lands. The objects of research are seed and vegetative regeneration of birch in young stands formed in clear-cut areas, as well as undesirable herbaceous and tree-shrub vegetation. When laying the experiments and evaluating their results, we were guided by the generally accepted methodology for testing herbicides in agriculture. In field production and small-scale experiments with herbicides magnum, magnum super, mortira and anchor-85 in young stands with birch trees, the biological effectiveness of the action of the preparations on a wide range of undesirable vegetation was determined, as well as their selectivity with respect to birch. High efficiency of herbicides magnum (100–300 g/ha) and magnum super (100–200 g/ha) on dicotyledonous species of herbaceous vegetation and deciduous species – willow, aspen, gray alder and mountain-ash, as well as high resistance of birch to them at continuous spraying during the growing season was established. Herbicides mortira (100–200 g/ha) and anchor-85 (100 g/ha) were recognized as unsuitable for birch care. It was found that after a single application of herbicide magnum at rates of 100 and 200 g/ha in mixed young stands dominated by aspen, willow and gray alder and with participation of birch 1–2 composition units, stands dominated by the latter are formed. For citation: Egorov A.B., Postnikov A.M., Bubnov A.A., Pavluchenkova L.N., Partolina A.N. Growing Birch in Clear-cut Areas with Herbicide Application. Lesnoy Zhurnal = Russian Forestry Journal, 2023, no. 5, pp. 58–74. (In Russ.). https://doi.org/10.37482/0536-1036-2023-5-58-74

АНАЛІЗ СИСТЕМИ ТЕХНІЧНОГО ОБСЛУГОВУВАННЯ І РЕМОНТУ АВТОМОБІЛЬНОЇ ТЕХНІКИ ПІД ЧАС БОЙОВИХ ДІЙ (2014-2016 років) ТА ШЛЯХИ ЇЇ УДОСКОНАЛЕННЯ

The article analyzes the system of maintenance and repair of automotive equipment based on the experience of conducting combat operations, and further ways of improving this system are determined. Taking into account the development trends of the armed struggle, the military and political situation in the world, the Ukrainian people should be confident in the combat capability of their Armed Forces (hereinafter - the Armed Forces). Based on this, the leadership of the Ministry of Defense and the General Staff of the Armed Forces of Ukraine pay important attention to the technical condition of weapons and military equipment (hereinafter referred to as military equipment) (including automotive equipment). During the operation of the car, its functional properties gradually deteriorate due to activation, damage to parts, corrosion, fatigue of the material from which it is made, and so on. Various malfunctions (defects) occur that significantly reduce the efficiency of car operation. Considering the fact that the vast majority of existing models of automotive equipment are in operation for more than 18-25 years (while most of the time is in storage), the importance of the effective functioning of the maintenance and repair system (hereinafter referred to as M&R) to maintain a given level of their combat capability is increasing. In modern conditions, timely and high-quality maintenance and repair of weapons and military equipment has become an important influencing factor of the combat capability of troops (forces), because it is a process that results in the combat potential of units, units and formations of the Ground Forces being maintained at a given level during long time [2, p. 161]. Keywords: system of technical maintenance and repair, automotive equipment, repair and restoration bodies, system of auto technical support.

METHODOLOGICAL ASPECTS OF THE FORMATION OF QUANTITATIVE ASSESSMENTS OF SAFETY OF AUTOMATED RAIL TRANSPORT CONTROL SYSTEMS USING RISK MANAGEMENT APPROACHES

The article examines the issues of improving the methodology for identification and assessment of the limits of existing risks of technical operation and maintenance of automated railway transport control systems, determining and classifying the level of severity of the consequences of failures for the further selection of appropriate risk management methods that will be applied in the development of innovative control systems of railway infrastructure transport. To resolve the issue, it is proposed to consider the effects of external factors and means of the system itself, which are designed to reduce risk in order to comply with a given level of functional safety using a risk-oriented approach. The main functions of risk are defined: protective, analytical, innovative, regulatory. The risk management process is based on the results of risk identification and assessment in order to reduce the consequences of dangerous factors and threats, based on the results of which a structural block diagram of the process was built using the principle "as low as reasonably achievable" (ALARP). 9 stages of risk management are defined: - risk assessment of potential consequences; - decision-making regarding risk and its acceptability; - development of measures to eliminate risks or reduce them to the lowest acceptable level; - determination of risk probabilities and completion of the table of risk probabilities - categories of the probability of occurrence of dangerous factors or threats; - assessment of the severity of their consequences and completion of the risk severity table with the definition of the severity category of the consequences of dangerous factors; - determination and classification of the level of severity of the consequences of train traffic control system failures; - assessment of risk acceptability using the risk assessment matrix and determination of risk acceptability indices; - risk assessment and decision-making regarding the acceptability or unacceptability of risks. - making a decision about the need to control the assessed risk. According to the results of the study, taking into account simplifications and assumptions, it was determined that the most vulnerable elements of the control system and timely and high-quality maintenance require identification and assessment of risks. That is, using statistical data on the failure of technical equipment on the one hand and statistical data on their technical maintenance, it is possible to calculate and assess risk levels and determine and classify the level of severity of the consequences of failures and the degree of their acceptability using quantitative and qualitative methods. The obtained results will be applied to the selection of appropriate risk management methods and further improvement of automated management systems by expanding their capabilities and providing them with additional functions.

Assessment of IT Tools Used for Operational Budgeting in Polish and Lithuanian Companies

The paper aims to determine the quality of information and the quality of IT tools used for operational budgeting in Polish and Lithuanian companies. The questionnaires were distributed by e-mail and traditionally among controllers/management accountants. Due to the fact that the sample was non-random, the findings of the research cannot be statistically referred to all the companies. The authors opted for this method of data collection because of the difficulty with survey returnability (extremely low return rate due to the use of sensitive data). However, the authors have taken a number of steps to increase the reliability of the study conducted. The research was preceded by extensive literature studies, the respondents had knowledge of the analyzed phenomenon and the results of the conducted research were compared to the results received by other authors. IT tools supporting operational budgeting with the highest quality assessment were Excel/Access and a ready and parameterized budgeting modules in the Integrated Systems. The analysis shows that low-quality IT systems result in low information quality. The system that is flexible can be modified easily, thus meeting changed user information needs quickly and efficiently, which leads to relevant and up-to-date information outputs to users, implying high information quality. The research shows that the maintenance of high quality of the operational budgeting system is a determinant of the quality of information generated by this system, in its absence - there is no way to ensure the quality of information in the decision-making process. This study allows to interpret the results of prior studies and create directions for future research that will refer to system quality and information quality, but also to a more extensive analysis. The results allow for prioritization in the context of dissemination, but most of all for the evaluation of individual tools supporting operational budgeting. Consequently, it extends the scope of information regarding the choice or change of the tool used, and provides the basis for a deeper analysis of the assessment of the distinguished features characterizing a given tool. The study offers the possibility of continuing it, which would allow comparison of the results, both in other countries, as well as repeating the study in the future and the possibility of observing changes in the tools used and assessing their quality. The survey could serve as a prelude to in-depth qualitative research, which would enable analysis of the factors determining the quality of the system used and the information generated.

Study of the Influence of the Thermal Capacity of the Lining of Acid Melting Furnaces on Their Efficiency

First of all, the smelting equipment is the most important component of a foundry’s main production process and therefore requires constant reproduction. This is ensured by timely and high-quality maintenance and repair, the cost of which is 8–12% of the total costs. The technical and economic conditions of the enterprise itself depend on this, as the productivity of workers during production is directly related to the technical condition of the equipment and its downtime for repairs. An important factor in ensuring a melting furnace’s reproduction is a replacement of the worn lining, which leads to downtime of the smelting furnace and reduces the efficiency of its operation. The amount of torque required depends directly on the compound used. The quality of the manufacturing and sintering process of the lining, which provides the necessary durability, is affected by the heat capacity of the materials used when they are affected by the melting temperature of the alloys. In the present work, using the BRUKER D8 ADVANCE diffractometer, the Shimadzu XRF-1800 spectrometer and the STA 449 F1 Jupiter synchronous thermal analyzer, we probed the changes in the heat capacity of quartzite and PKMVI-3 under the action of temperatures of 200–1550 °C. This technology allows the manufacture of a lining that maintains high stability during operations at 1550–1600 °C melting modes.

Лінгур Л. М., Мартинюк О. А., Єсіна О. Г. ВПРОВАДЖЕННЯ СТАНДАРТІВ ЯКОСТІ В УПРАВЛІННЯ ПІДПРИЄМСТВАМИ МАЛОГО ТА СЕРЕДНЬОГО БІЗНЕСУ

The purpose of the article is to study the existing international standards, determine the advantages and disadvantages of implementing QMS in the activities of SMEs and highlight the system-forming factors of ensuring the competitiveness of SMEs based on TQM in modern conditions. Methodology of research. Achieving the goal set in the article was achieved with the help of structural analysis, logical generalization and analytical method. Findings. Integration of Ukraine on an equal basis into the world economy is possible only if international standards are used. Therefore, there is conscious need to review current quality management methods and ensure systematic approach to the "quality problem". One of the most effective ways to solve this problem today is the application of ISO 9000 series international standards. The presence of certification is an additional advantage when solving questions about lending, investing in industrial enterprises for business expansion or modernization. The types and necessity of implementing ISO, the TQM system and mechanisms of their interaction are considered. The points of influence of ISO 9001:2015 are determined and the system-forming factors of competitiveness for small and medium-sized enterprises based on the system of quality management standards are described in detail. The authors considered systemic factors that affect the competitiveness of small and medium-sized enterprises in context of the implementation of QMS. They were divided into factors of the external and internal environment. In addition, in this format, the legal and market aspect, internal organizational and financial aspects, the aspect of managerial influence and improvement of the business system were considered. Practical value. Implementation of QMS at the enterprise provides advantages: achievement and stable maintenance of high quality of goods, in accordance with consumer criteria, preservation of existing market segments and their expansion, modernization of technical processes, competitive advantages in participation in tenders, international cooperation. This will allow entrepreneurs to better understand the advantages and disadvantages of the implementation of QMS system and need for its certification, as well as highlight the opportunities that must be applied in the near future, when the emergency recovery of the economy begins after Ukraine's victory in the war with the Russian aggressor.

Knowledge Sharing Co-operative Structures: The Case of WikiProjects

The effects of cooperation that may be observed based on voluntary activities of a global institution online like Wikipedia illustrate the social potential arising from the spontaneous need for activity. The basic activity of a Wikipedia user by way of assumption comes down to the creation of verbal content. The maintenance of high quality in the contents presented through controlling their verifiability is already a multi-faceted form of cooperation. The quintessence of such cooperation is the organization of Wikipedia users around internal WikiProjects.
 The research presented in the paper aimed to verify the magnitude of WikiProjects from the viewpoint of the number of users of Wikipedia, the most frequent number of participants of WikiProjects, and their compliance with the numeracy of groups and communities in the notion of Dunbar. Moreover, it was assumed that the number of WikiProjects in a given language version, while also the number of their participants is associated with the indicator of individualism-collectivism (IDV) according to Hofstede. The method applied was the analysis of entries of the activities in WikiProjects, as well as the number of their participants.
 The research has shown that WikiProjects, as groups of Wikipedians working as a team, show a similarity to the layered community formation proposed by Dunbar. A positive correlation was also found between IDV and the number of WikiProjects for individual language versions. A high IDV mainly relates to countries with a high GDP per capita. In these countries, we are dealing with a developed IT infrastructure. The high level of participation in WikiProjects with a high IDV may also be motivated by the desire to build user’s position, as well as the desire to have an impact on the community as individuals. WikiProjects may fulfil the function of clubs, in which participants may try to build their autonomy in terms of activities to a certain extent, regardless of the entire system in which they operate. WikiProjects as a group of Wikipedia users working as a team indicate the similarity to the tiered creation of communities proposed by Dunbar.

ASPECTS OF EXPERT SYSTEM OF ENGINEERING MANAGEMENT OF TECHNICAL CONDITION OF GRAIN HARVESTERS

Abstract. Engineering management of the technical condition of combine harvesters is mainly entrusted to the combine operator or service team, for which the greatest difficulty is related to information and intellectual aspects, which determine the high requirements for operator qualification, to the level of technical diagnostic tools. The solution of manually littlestudied and complex problems of technical diagnostics of combine harvesters encounters natural difficulties associated with the need for heuristic processing of large amounts of information and logical analysis of complex interconnected processes. The value of these factors is exacerbated by the rapidity of the harvesting process, the high risk of erroneous or delayed assessment of the technical condition of the combine, which leads to significant crop losses and does not allow to obtain a possible effect. Thus, ensuring high quality maintenance of the combine harvester largely depends on the professional competence of staff, which is a deep knowledge of the design of the machine and its subsystems: mechanical systems, hydraulics, electrical equipment.

Zrównoważona logistyka żywności a technologie przemysłu 4.0

Sustainable development of logistics in the food industry requires the implementation of Industry 4.0 technologies. These technologies will help improve efficiency with the maintenance of high quality and food safety. Optimizing logistics processes with cyber-physical systems also means reducing costs, especially transportation processes, reducing food waste, flexible production with resource efficiency, reducing carbon emissions. Green and sustainable logistics using innovative technologies should be a fundamental component of a closed-loop economy. This article presents examples of technologies to achieve sustainable and green logistics in the food industry.

Postharvest application of salicylic acid enhances storage life and fruit quality of grapes

Grapes are extremely perishable and cannot be stored at ambient temperature for longer duration which is the chief cause for huge economic losses to the orchardists. Keeping this in view, different concentrations of salicylic acid (1 mM, 2 mM and 3 mM) as postharvest treatments were applied to grapes cv. ‘Flame Seedless’ to examine their effect on the storage life and fruit quality. The fruits were packed in low-density polyethene packaging with dual release grape guards and placed in corrugated fiber board boxes for up to 75 days at 0–2oC and 90–95% RH. The results indicated that salicylic acid @ 2 mM significantly reduced postharvest lost in weight, decay incidence, rachis browning, berry shattering, organoleptic quality and membrane electrolyte leakage. The highest acidity, total phenolics and anthocyanin were found in fruits subjected to 3 mM salicylic acid application. The salicylic acid treated fruits demonstrated better consumer acceptability and fruit quality in storage and treatment seemed to be promising for maintenance of high quality in grapes cv. Flame seedless up to 60 days of storage.

Analysis of the effect of logistics efficiency in ASEAN+3 countries on the trade of agri-foods in Korea

최근 코로나19환경하에서도 우리나라 농식품 수출은 지속적인 성장추이를 보이고 있다. 농식품 수출은 국가 전체 교역분야에서 낮은 비중을 차지하고 있지만, 다른 부문의 수출규모에 비해 성장속도 및 규모는 매우 빠른 성장추이를 보이고 있다는 점이 주목되고 있다. 우리나라 농식품 수출은 국내 생산잉여를 중심으로 이루어졌지만 무역자유화로 인한 시장개방으로 인해 고품질 전략상품 개발과 해외시장 맞춤형 품목개발을 통한 수출확대 전략으로 변화하였다. 오늘날 농식품 수출분야는 제품개발과 고품질 유지라는 차원을 넘어 농식품의 특성인 신선과 안전을 유지하여 최종 소비자의 만족도를 높일 수 있는 새로운 인식 전환이 필요한 시점이다. 이에 농식품의 국가간 이동을 효율적으로 다룰 수 있는물류분야의 역할이 점차 증가하고 있다. 본 연구는 ASEAN의 주요국과 전통적으로 우리 농식품 수출시장인 3개국을 대상으로 우리 농식품수출에 미치는 물류효율화의 효과 분석을 실시하고자 한다. 그리고 실증분석 결과를 바탕으로 농식품 수출의 새로운 도약을 위한 물류효율화 추진의 필요성을 시사점으로 제시하고자 한다.Recently, even under the COVID-19 environment, Korea s agri-food exports are showing a continuous growth trend. Agricultural and food exports still account for a small portion of the national trade sector, but it is noteworthy that the pace and scale of growth are showing a very rapid growth trend compared to other sectors. Korea s agri-food exports were traditionally limited to exports of remaining products after production, but gradually developed high-quality strategic products to expand the export market, including exploring new markets, and products tailored to overseas market demand have gradually increased. Now, it is time for the agri-food export sector to change its perception to increase the satisfaction of final consumers by maintaining freshness and safety, which are characteristics of agri-food beyond product development and high quality maintenance. Accordingly, the role of the logistics field dealing with the movement of agri-food between countries is gradually increasing. This study is a major country of ASEAN, Japan, and China, traditionally Korean agri-food export markets. We would like to analyze the effects of logistics efficiency on Korean agri-food exports to the United States. And based on the results of the empirical analysis, I would like to present the necessity of promoting logistics efficiency for a new leap forward in agri-food exports as an implication.

INFLUENCE OF VIBRATION MAGNITUDE IN MACHINING OF MATERIALS BY TURNING TECHNOLOGY

The basic task of any prosperous company is to minimize operating costs to a minimum. High-quality maintenance ensures an increase in the operational reliability of the machines. It is important to find a compromise between scheduled maintenance and production process requirements, so resources are spent to optimize the maintenance schedule. This is provided by technical diagnostics, which helps to monitor the technical condition and functional properties of the monitored machine under specified operating conditions. The publication is focused specifically on vibration diagnostics and its use in monitoring the transmission of vibrations during the turning of selected types of materials in the company with a focus on engineering, the ZVL AUTO s.r.o. The scope of research is mainly focused on the monitoring process in order to analyze the magnitude of vibration acceleration at two preselected parts of the machine tool - lathe.