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1

E-Kanban Application and Value Stream Mapping in the Optimisation of Logistics Processes

Pekarcikova Miriam, Trebuna Peter, Kronova Jana, Kliment Marek

Management and Production Engineering Review

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2025

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Vol. 16, No. 1

1--12

EN

The article focuses on the issue of streamlining logistics processes by applying selected VSM and kanban lean tools, which are also of great importance in the current digital age, especially from the point of view of finding the potential for eliminating processes and activities that do not add value. Unlike traditional supply systems, the new dynamic approach to inventory management is that it considers unique procurement methods, unique demand, and product flows through the manufacturing process. The mentioned approach aims to define the optimal amount of stock, which can ensure the required level of supply service and, at the same time the efficiency of material flows in production and assembly and reflect on fluctuations in demand In the analysis and verification of outputs, methods of lean production, VSM, OEE monitoring, and kanban were used. An object-oriented approach to business process modelling using ARIS software was used for process algorithmizing.

2

Effective management of key variables in the 3D printing process of pulley-wheel

Wygoda Mateusz, Witko Mateusz

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2024

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z. 197

641--666

EN

Purpose: The aim of the study is to systematically compile information on 3D printing and provide an overview of how various parameters and factors in the technological process interrelate, particularly focusing on their impact on the final manufacturing time and filament consumption. This research seeks to enhance efficiency and optimize resource utilization in the realm of 3D printing technology. Design/methodology/approach: The objectives are attained through a comprehensive review of the literature aimed at systematizing, describing, and highlighting important parameters within 3D printing technology. The management of the process is facilitated by specialized software capable of capturing process parameter values and analyzing their impact on both the manufacturing time and filament consumption during 3D printing. This approach leverages software tools to effectively control and optimize the 3D printing process, enabling a detailed examination of how specific parameters influence key out comes such as production time and material usage. Key findings: In the scope of paper is analysis the influence of 3D printing parameters on the final time in the technological process. The parameters are juxtaposed in the form of tables and charts – it allows find significant parameters which mainly decide about manufacturing time of printing elements and material consumption. Research limitations/implications: The limitation of the study is information about the mechanical properties of manufactured elements depends on the parameters of the 3D printing process. Future investigations should be based on the durability of the final 3D-printed object depending on loading conditions. Practical implications: The presented study show the dependency between parameters of 3D printing process, final time manufacturing and consumption of filaments. In practice the consumption of material and correctly select of parameters to 3D printing is economical important due to costs. Originality/value: The paper introduces a novel description of 3D printing factors and provides insightful considerations regarding the final manufacturing time of elements produced through additive technologies. By delving into the intricate relationship between various factors influencing 3D printing processes, this research offers a fresh perspective on optimizing manufacturing time and efficiency.

3

Studies of turbulent fluid in a well pump for improving environmental safety

Allakhverdiyev Zamaddin, Kazimova Latifa

Nafta-Gaz

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2024

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R. 80, nr 5

288-292

EN

When the plunger moves downwards, the local hydraulic resistance in the injection system causes a hydraulic force from the bottom upwards, which prevents the plunger from falling freely in the cylinder and is the source of the bending of the pump rod column. For this reason, the plunger takes an eccentric position in the cylinder and presses against it, delaying the plunger fall from the head of the balancer of the rocking machine and disturbing coaxial connection of the stock-discharge valve-plunger. These complications lead to increased wear of the plunger-cylinder pair, breakage of the injection valve cell, broken pump rod column, loss of the plunger stroke, etc. It should be noted, however, that in these tests, the flow factor μ is taken as the hydraulic resistance for determining the pressure loss in the valve assembly, and the valve seat cross-section is calculated. When calculating the friction force in the plungerpressure valve system, the loss of pressure in it is taken to be equal to the loss of pressure of the valve unit. As is known, the downhole pump suction and injection system is a complex system of local resistance, as it consists of different combinations of elements that strongly affect the overall hydraulic resistance of the unit. It is therefore advisable to adopt the local hydraulic resistance coefficient as the hydraulic resistance of the respective unit. The reliability of downhole pumps in general and their individual components is ensured during their design and manufacture and depends on the design features, the quality of manufacturing of components thereof, assembly of the downhole pump in general and their components, as well as a number of other process indicators.

PL

Podczas ruchu tłoka w dół, na skutek lokalnego oporu hydraulicznego w układzie wtryskowym powstaje siła hydrauliczna działająca od dołu do góry, która uniemożliwia swobodne opadanie tłoka w cylindrze i jest przyczyną wyginania się kolumny tłoczyska pompy. Powoduje to, że tłok przyjmuje mimośrodową pozycję w cylindrze i naciska na niego, opóźniając opadanie tłoka z głowicy wyważarki maszyny wahadłowej i zaburzając współosiowość połączenia tłoka z zaworem wypływu. Komplikacje te prowadzą do zwiększonego zużycia pary tłok-cylinder, uszkodzeń komory zaworu wtryskowego, złamania kolumny tłoczyska pompy, utraty skoku tłoka itp. Należy jednak zauważyć, że w tych testach współczynnik przepływu μ jest przyjmowany jako opór hydrauliczny służący określeniu straty ciśnienia w zespole zaworu, natomiast przekrój gniazda zaworu jest obliczany. Przy obliczaniu siły tarcia w układzie tłok-zawór ciśnieniowy przyjmuje się, że strata ciśnienia jest równa stracie ciśnienia w zespole zaworu. Jak wiadomo, układ ssący i wtryskowy pompy głębinowej jest układem o złożonym oporze lokalnym, ponieważ składa się z różnych kombinacji elementów, które mają znaczący wpływ na całkowity opór hydrauliczny jednostki. Zaleca się zatem przyjęcie współczynnika lokalnego oporu hydraulicznego jako oporu hydraulicznego danej jednostki. Zapewnienie niezawodności pomp wiertniczych ogółem, jak i ich poszczególnych komponentów odbywa się na etapie ich projektowania i produkcji i zależy od cech konstrukcyjnych, jakości wykonania ich komponentów, sposobu wykonania montażu pomp wiertniczych i ich komponentów, a także szeregu innych wskaźników procesowych.

4

Synchronized Scheduling and Order Processing as the Leverageo f Digital Supply Chain Transformation Process

Mielcarek Paweł, Piekarczyk Anna

Management and Production Engineering Review

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2024

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Vol. 15, No. 4

1--11

EN

The aim of this article is to analyze and describe the relation between implemented new technologies and achieved effects of digital transformation process of the supply chains (DSC). The presented research covers seven technologies and solutions used for DSC, as compared with eleven effects of transformation process. Main finding of this paper is that for DSC transformation the most important technologies are synchronized scheduling (with mean of 3.993 in five-point scale) and flexible and dynamic order processing (mean of 3.986). Further more, both technologies showed highest correlations with the effects of DSC transformation process. Moreover, based on the results of factor analysis, we claim that only a decisive and comprehensive introduction of technologies related to the digital transformation of supply chains can give positive effects, while a partial implementation of DSC technologies may even worsen the company’s results. The presented research allows for a better understanding of the context that determines DSC transformation, especially in the case of applied technologies and achieved effects of operations, as well as complex interdependencies between analyzed items of each variable. The results can provide foundations for digital transformation strategy of supply chains.

5

Problems of manufacturability of the material and product manufacture - overview of the issues

Maliszewski P., Roszak M.

Journal of Achievements in Materials and Manufacturing Engineering

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2024

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Vol. 127, nr 1

5--16

EN

Purpose: Analysis of the issue of manufacturability of the material on selected examples in the context of various stages of product production. Design/methodology/approach: The material technology issue was analysed based on selected examples of product manufacturing technologies available in the literature. Findings: As a result of the review of selected technological processes, essential aspects of the manufacturability of the material were identified, which should be considered at all stages of product design and manufacturing. Practical implications: The article is an introduction to a more detailed analysis of the aspects of the manufacturability of material and its connections with other issues, as well as the stages of product manufacturing. Originality/value: The article is an authorial view on the approach to a very important issue, that is, manufacturability of material. It points to the interdisciplinary nature of this issue.

6

Assessing the health conditions of residential allotments

Chaib Aicha, Dib Belkacem

Geomatics, Landmanagement and Landscape

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2024

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no. 4

217--236

EN

This study presents an assessment of the health conditions of residential allotment in El-Eulma city, Algeria, using a case study framework. Its aim is to identify the indicators affecting human physiological comfort in the environment of residential housing. The study was carried out in two phases The first phase was conducted on site, revealing that the residential allotment underwent both horizontal and vertical densification, horizontally, nearly half of the initial plots were subdivided into smaller parcels, vertically, building heights were increased, furthermore, the strictly residential function was transformed into a mixed function, incorporating commercial spaces on most ground floors. The second phase involved a simulation generated by the ArcGis10.4 software assess the health conditions on three levels: the first level included a multicriteria analysis, which made it possible to identify adverse health conditions of the building; the second level involved a shading tool, which allowed to detect the zones with external adverse influence on health conditions, and finally, the third level was the evaluation of affected buildings based on four indicators: division, building height, commercial function, degree of change, with the shading indicator supported by the hierarchical analysis process. Finally, the paper concluded that the method and tools employed to address the issue of health conditions can be regarded as preliminary and diagnostic, specifically dedicated to examining the condition of residential allotment, such as the case study.

PL

W niniejszym badaniu przedstawiono ocenę warunków zdrowotnych działek mieszkalnych w mieście El-Eulma w Algierii, wykorzystując ramy studium przypadku. Jego celem jest zidentyfikowanie wskaźników wpływających na komfort fizjologiczny człowieka w środowisku budynków mieszkalnych. Badanie przeprowadzono w dwóch fazach. Pierwsza faza została przeprowadzona na miejscu, ujawniając, że działka mieszkalna przeszła zarówno poziomą, jak i pionową zagęszczenie, poziomo, prawie połowa początkowych działek została podzielona na mniejsze działki, pionowo, zwiększono wysokość budynków, ponadto, ściśle mieszkalna funkcja została przekształcona w funkcję mieszaną, obejmując przestrzenie handlowe na większości parterów. Druga faza obejmowała symulację wygenerowaną przez oprogramowanie ArcGis10.4, oceniającą warunki zdrowotne na trzech poziomach: pierwszy poziom obejmował analizę wielokryterialną, która umożliwiła zidentyfikowanie niekorzystnych warunków zdrowotnych budynku; drugi poziom obejmował narzędzie do zacieniania, które pozwalało wykryć strefy z zewnętrznym niekorzystnym wpływem na warunki zdrowotne, a trzeci poziom to ocena dotkniętych budynków na podstawie czterech wskaźników: podział, wysokość budynku, funkcja komercyjna, stopień zmiany, przy czym wskaźnik zacienienia był wspierany przez proces analizy hierarchicznej. Na koniec artykuł stwierdził, że metodę i narzędzia wykorzystane do rozwiązania problemu warunków zdrowotnych można uznać za wstępne i diagnostyczne, specjalnie dedykowane do badania stanu działek mieszkalnych, takich jak studium przypadku.

7

Filtering theory for an Ornstein-Uhlenbeck process driven power system dynamics

Hirpara Ravish H.

Control and Cybernetics

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2024

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Vol. 53, No. 2

355--370

EN

This paper revisits the non-Markovian state vector of an Ornstein-Uhlenbeck process-driven power system dynamics in non-linear filtering framework. The Fokker-Planck setting accounts for the process noise correction term and ignores the observation noise correction term in the analysis of stochastic systems. This paper introduces the notion of the ‘Kushner-Stratonovich setting’, which accounts for the process noise as well as observation noise correction terms in the conditional moment evolution equation. The Kushner-Stratonovich setting is the cornerstone formalism of nonlinear filtering problems of stochastic control systems. We wish to estimate the rotor angle from given observations using two non-linear filters: (i) a Gaussian non-linear filter, and (ii) the extended Kalman filter. This paper develops two non-linear filters for a filtering model for the machine rotor angle, in which the Ornstein-Uhlenbeck process is the process noise and the Brownian noise process is the observation noise. The filter efficacy is examined by utilizing quite extensive numerical experimentations with two sets of data.

8

Using Business Process Model and Notation 2.0 to Deploy Cobots in a Manufacturing System – Case Study

Pizoń Jakub, Kanski Łukasz, Kulisz Monika, Chadam Jan, Sánchez-García Eduardo

Advances in Science and Technology. Research Journal

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2024

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Vol. 18, no. 7

150--162

EN

This study examines the application of BPMN 2.0 notation within the implementation process of modern Industry 5.0 solution – cobots (collaborative robots). The research aims to compare the operational efficiencies of traditional human-only production processes with those augmented by cobots. The authors analyze two variants of furniture production processes: one involving only human workers and another combining cobots and human workers. The efficiency of these processes was assessed in terms of production time and output quantity. The investigation revealed that the production process incorporating cobots was more efficient, with a reduction in production time by 4.76% and an increase in the amount of products produced by 35.5%. The study concludes that integrating cobots into production processes can significantly enhance efficiency, reducing time and increasing output. BPMN 2.0 notation is a critical tool for modeling, automating, and monitoring these improved processes, aiding organizations in making strategic decisions towards adopting robotic solutions to boost productivity and competitive edge in the marketplace.

9

Use of the method FMEA for hazard identification and risk assessment in a coal mine

Duda Adam, Juzek Tymoteusz

Management Systems in Production Engineering

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2023

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nr 3 (31)

332--342

EN

One of the basic stages of mining operations is development work. During them there can occur the events that affect the process of development work as well as the safety of workers. This article conducts a process risk assessment using the Failure Modes and Effects Analysis (FMEA) method to identify events that disrupt the development work process, along with the causes of the occurrence of these events. The study covered the process of development work i.e. the execution of the M-2 roadway in seam 502/1 realized at a depth of about 550 m with an assumed length of about 500 m. As a result of the study, those risks for which countermeasures should be applied were identified, and measures were proposed to minimize the risks involved. As part of the research, an FMEA evaluation form was created to assess process risks in the execution of similar work. The highest process risk was identified for the drivage of the excavation with a road header, and is related to the possibility of frequent failure of hydraulic systems. Similar process risk results were obtained for the risk associated with improper execution of mining with explosives and the need to perform additional blasting work in the excavated roadway. The results can contribute to reducing the time of coal face stoppage during development work, and thus improve the process of them and reduce the costs incurred during this process.

10

Case Study: Testing the Overall Efficiency of Equipment in the Production Process in TX Plant Simulation Software

Pekarčíková Miriam, Trebuna Peter, Kliment Marek, Trojan Jozef, Kopec Ján, Dic Michal, Kronová Jana

Management and Production Engineering Review

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2023

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Vol. 14, No. 1

34--42

EN

The article deals with a widely used method of measuring the overall efficiency of equipment (OEE), which in combination with technologies and software tools is gaining in importance. The overall efficiency of OEE equipment is a key performance metric for machines and equipment to identify hidden capacities and increase production productivity. The intensification of Industry 4.0 in traditional manufacturing companies supports and creates the conditions for their transformation into a smart factory. The integration of intelligent machines and devices with complex human-machine communication network systems requires a new direction in measuring and increasing OEE. Mass customization, resp. personalization of production raises a high need to monitor, improve and further maintain productivity. The aim of the article is to create a simulation model of the production process and test the energy consumption of selected equipment using TX Plant Simulation software with a proposal of measures to increase the OEE of the company.

11

Digital transformation of supply chains and company’s performance

Mielcarek Paweł, Piekarczyk Anna

LogForum

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2023

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Vol. 19, no. 1

47--57

EN

Background: The aim of the article is to examine the determinants of the digital transformation of the supply chains (DSCs) of companies. The presented research covers the stages of digital supply chain transformation, applied key technologies, and the results of implementation of DSC transformation. Methods: The research covered 235 randomly selected Polish companies of all sizes, focusing on transport and warehouse management companies (33.6%), industrial processing (15.7%), other services (11.4%) and wholesale and retail trade (11.1%). Data were acquired by the CAWI method in 2022. For statistical calculation, Pearson correlation and factor analysis were used. Results: The results of this paper indicate that the DSC transformation process is implemented with rather similar and moderate degree of intensity (mean 3.61 on a scale from 1 to 5). The transformation process of DSC is based on several interdependencies, that is, between integration of company’s technology base and other entities of the supply chain as well as with scale and improve the solutions for DSC. Moreover, DSC transformation is positive related with all of the performance measures (profit, sales, market share, ROI, and competitive advantage), while the greatest increase is noticed for ROI. Furthermore, the factor analysis confirm that a systematic and comprehensive approach to the transformation of DSC raises company performance. Conclusions: The presented research allows for a better understanding of analysed variables and the context that determines DSC transformation for both managers and practitioners. Thus, it enable building a strategy and roadmaps for the digital transformation of enterprises and mitigate associated risks.

12

QIBMRMN: Design of a Q-Learning based Iterative sleep-scheduling & hybrid Bioinspired Multipath Routing model for Multimedia Networks

Doorwar Minaxi, Malathi P

International Journal of Electronics and Telecommunications

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2023

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Vol. 69, No. 4

776--784

EN

Multimedia networks utilize low-power scalar nodes to modify wakeup cycles of high-performance multimedia nodes, which assists in optimizing the power-toperformance ratios. A wide variety of machine learning models are proposed by researchers to perform this task, and most of them are either highly complex, or showcase low-levels of efficiency when applied to large-scale networks. To overcome these issues, this text proposes design of a Q-learning based iterative sleep-scheduling and fuses these schedules with an efficient hybrid bioinspired multipath routing model for largescale multimedia network sets. The proposed model initially uses an iterative Q-Learning technique that analyzes energy consumption patterns of nodes, and incrementally modifies their sleep schedules. These sleep schedules are used by scalar nodes to efficiently wakeup multimedia nodes during adhoc communication requests. These communication requests are processed by a combination of Grey Wolf Optimizer (GWO) & Genetic Algorithm (GA) models, which assist in the identification of optimal paths. These paths are estimated via combined analysis of temporal throughput & packet delivery performance, with node-to-node distance & residual energy metrics. The GWO Model uses instantaneous node & network parameters, while the GA Model analyzes temporal metrics in order to identify optimal routing paths. Both these path sets are fused together via the Q-Learning mechanism, which assists in Iterative Adhoc Path Correction (IAPC), thereby improving the energy efficiency, while reducing communication delay via multipath analysis. Due to a fusion of these models, the proposed Q-Learning based Iterative sleep-scheduling & hybrid Bioinspired Multipath Routing model for Multimedia Networks (QIBMRMN) is able to reduce communication delay by 2.6%, reduce energy consumed during these communications by 14.0%, while improving throughput by 19.6% & packet delivery performance by 8.3% when compared with standard multimedia routing techniques.

13

Analiza możliwości zapisu procesu sporządzania projektu budowlanego z wykorzystaniem metody wizualizacji danych

Kręska-Pyrz Marta, Opania Szymon

Builder

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2023

|

R.27, nr 11

34--40

PL

Czym jest projekt budowlany? Czy jest to stworzone wyłącznie na podstawie wielu przepisów opracowanie będące podstawą realizacji obiektów budowlanych? W istocie dla inwestorów tak jest, jednak proces sporządzania projektu budowlanego jest, w przekonaniu autorów, skomplikowaną siatką powiązań wielu zależności i relacji między różnymi obszarami wiedzy, umiejętności i uwarunkowań. Zaniechania w którymś z wymienionych obszarów prowadzą często do powstawania elementów ryzyka w realizacji inwestycji. Ryzyko to dotyczyć może wszystkich uczestników procesu budowlanego: inwestora, inspektora nadzoru inwestorskiego, projektanta oraz kierownika budowy lub kierownika robót [1]. Stąd badania zostały skoncentrowane na próbie zebrania i przeanalizowania istotnych danych, a następnie ukazaniu ich wzajemnych relacji i powiązań. Dzięki współczesnej technologii i dziedzinie, jaką jest wizualizacja danych, można w obrazowy sposób ukazać wzajemne powiązanie danych przy jednoczesnym uporządkowaniu pozornego chaosu. W pierwszej części artykułu opisano projekt budowlany jako proces i jego części składowe, bazując na przepisach wyjściowych w zakresie wyłącznie podstawowym. W dalszej części scharakteryzowano metodę wizualizacji danych, jej zalety i możliwości. W końcu na potrzeby artykułu przedstawiono wyniki badań nad możliwościami prezentacji procesu projektowego na wybranych przykładach, stanowiących część szerszego obszaru badawczego. Wnioski z zaprezentowanych przykładów i dotychczasowych badań stanowią podsumowanie artykułu.

EN

What is a construction project? Is it only a development based on many regulations that is the basis for the construction works? In fact, this is the case for Investors, but the process of drawing up a construction project is, in the opinion of the authors, a complex network of connections of many dependencies and correlations between different areas of knowledge, skills and conditions. Omissions in any of these areas often lead to risk areas in the implementation of investments. This risk may affect all participants in the construction process: the investor, the investor supervision supervisor, the designer and the site manager or works manager. Therefore, the research focused on trying to collect and analyze relevant data and then show their interrelationships and connections. Thanks to modern technology and the field of data visualization, it is possible to visualize the interconnection of data while at the same time ordering the apparent chaos. The first part of the article describes the construction design as a process and its components based on the basic rules only. Further, the data visualization method, its advantages and capabilities are characterized. Finally, for the purpose of the article, the results of studies on the possibilities of presenting the design process on selected examples, which are part of a wider research area, are presented. Conclusions from the presented examples and previous studies are a summary of the article.

14

Validity and reliability testing of the questionnaire used to finalize criteria for the evaluation of the contractor’s performance

Mahadik Sunil, Topkar Vinay

Archives of Civil Engineering

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2023

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Vol. 69, nr 4

477--492

EN

The paper aims to determine the criteria and sub-criteria for evaluating the contractor’s performance and finalize a master list of the criteria and sub-criteria to be used for evaluating contractor’s performance with their respective weights. The method is incorporated in the framework proposed for the evaluation of the contractor’s performance during the execution phase. An exploratory study has been opted, using a structured, close-ended multiple-choice questionnaire survey approach. The questionnaire survey was conducted in two phases, i.e. validation survey, and reliability survey. Fifteen experts responded to the validation survey, and thirty experts to the reliability survey. The experts were from Government and public sectors in India, working at various senior levels. The weights of criteria and sub-criteria were calculated from data collected in the survey, relative importance was calculated through the relative importance index and criteria were ranked. The paper provides criteria and sub-criteria which were finalized through a questionnaire survey by classification of criteria identified in literature and tender review. The respective weights were finalized, which can be measured while evaluating contractors’ performance. The weights assigned to criteria through the survey are; health and safety is 13.19%, followed by finance 11.93%, time 11.93%, quality 13.38%, client satisfaction 12.42%, environmental safety 12.32%, productivity 12.51% and regulation 12.32%. The paper provides the criteria and sub-criteria with their weights needed for evaluating the performance of contractors during the project execution phase. This research can lead to a culture of continuous measurement of performance for the satisfactory completion of projects.

15

National security challenges and threats

Wyrębek Henryk

Wiedza Obronna

|

2022

|

nr 2

109--123

EN

The catalogue of threats which currently exist in the national security environment and may occur in the future is constantly growing. These phenomena are characterized by diversity, intensity, as well as unpredictability of the scale and consequences of their occurrence. The diversity of threats results from the fact that they are a consequence of mutually interacting political, military, economic and social, demographic and environmental processes and phenomena. Their character causes that they increasingly often lead to the occurrence of a crisis situation, and thus to the disruption of the normal functioning of the state. The article attempts to analyze the specific determinants of national security.

16

Analysis of the maturity of process monitoring in manufacturing companies

Czerwińska Karolina, Pacana Andrzej

Production Engineering Archives

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2022

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Vol. 28, Iss. 3

245--251

EN

The economic progress of recent years has contributed to the fact that both the quality of products and services offered and ISO standardization have become priority criterion that determines the success of manufacturing enterprises. Therefore, the monitoring and supervision of processes carried out in manufacturing companies is a key issue. These aspects support the achievement of key economic and quality objectives. The paper presents the results of a study on manufacturing enterprises in the context of process monitoring maturity. The research objective of the study was to determine the level of maturity in the use of process monitoring techniques and methods in manufacturing enterprises. The subject of the research were the techniques and methods used by the surveyed enterprises in such areas as: production management, machinery park management, warehouse management, transport management, inventory and supply management and IT tools. In order to determine the level of maturity, the author’s model was used, according to which the level of maturity of a manufacturing enterprise in the area of process monitoring depends on the instrumentation that is used in it.

17

Customer service excellence as a part of management process : Customer Service Excellence Report analysis

Kawęcki Norbert

Nowoczesne Systemy Zarządzania

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2022

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T. 17, nr 3

37--48

EN

The article presents problem of customer service excellence as apart of management process. By given overview of Customer Service Excellence and management process definitions the work provides methodology of study based on digital Deloitte Report from 2022. The main goal of the elaboration is to present overview statistics based on survey to provide whole range of numbers from study of customer service excellence. The methodology is based on the analysis of empirical data presented in the report and the presentation of far-reaching conclusions. The main outcomes are: self-service is rising, time to increase focus on personalization and customer care, independent and empowered customer service centers are the most effective, regional and industry variances. As a summary there is forecast for 12 months period provided by boards of international companies.

PL

W artykule opisano problem doskonałości obsługi klienta w ramach procesu zarządzania. Za pomocą omówienia definicji doskonałości obsługi klienta i procesów zarządzania w pracy przedstawiono metodologię badań opartą na cyfrowym raporcie Deloitte z 2022 roku. Głównym celem opracowania jest zaprezentowanie statystyk przeglądowych na podstawie ankiety w celu pokazania całego zakresu liczb z badania dostarczonego przez firmę Deloitte w formie zdigitalizowanej. Metodologia oparta jest na analizie danych empirycznych zaprezentowanych w raporcie oraz przedstawieniu daleko idących wniosków. Główne wyniki to: rosnąca skala samoobsługi, czas na zwiększenie nacisku na personalizację i obsługę klienta, niezależne i upoważnione centra obsługi klienta są najbardziej efektywne, różnice regionalne i branżowe. Podsumowanie zawiera prognozę na okres 12 miesięcy dostarczaną przez zarządy międzynarodowych firm.

18

Udział energii odnawialnej w polskim miksie energetycznym w odniesieniu do innych krajów

Ciechanowska Maria

Nafta-Gaz

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2022

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R. 78, nr 12

892--900

PL

W artykule przedstawiono działania Komisji Europejskiej ujęte w planie REPowerEU, mające na celu z jednej strony zapewnienie bezpieczeństwa energetycznego krajów członkowskich UE po agresji Rosji na Ukrainę i nałożeniu sankcji na Rosję, a z drugiej – ograniczenie nasilających się obecnie coraz bardziej negatywnych zmian klimatycznych. Aby przeciwdziałać tym zmianom, koniecznością jest odejście od wykorzystywania paliw kopalnych na rzecz odnawialnych źródeł energii (OZE). Scharakteryzowano udział energii OZE w bilansach energetycznych wybranych krajów europejskich i pozaeuropejskich poprzez przedstawienie wielkości zainstalowanej mocy energii elektrycznej pochodzącej z poszczególnych typów źródeł energii: wiatru, promieniowania słonecznego, wody, biomasy (biopaliwa stałe, ciekłe i gazowe) oraz z zasobów geotermalnych. Dane te pochodzą z roku 2021 i dotyczą krajów najbardziej zaawansowanych we wdrażaniu technologii OZE. Drugim analizowanym parametrem jest wielkość ciepła wygenerowanego ze źródeł odnawialnych oraz pozyskanego w procesie wysokosprawnej kogeneracji. W rozdziale dotyczącym udziału energii odnawialnej w strukturze polskiej energetyki przedstawiono wyniki z I półrocza 2022 r., wskazujące, że zielona energetyka stanowiła tylko 22,5% całej wyprodukowanej energii, przy największym udziale elektrowni wiatrowych (11,9%) i instalacji fotowoltaicznych (4,4%). Podkreślono ogromny rozwój w kraju fotowoltaiki (liczba instalacji w maju 2022 r. wynosiła 1 083 600 szt.) oraz duży potencjał rozwojowy pomp ciepła. Omówiono wybrane dokumenty krajowe mające wpływ na powstawanie nowych źródeł OZE, konieczność ich dostosowania do aktualnych potrzeb, a także wprowadzenia uproszczonych procedur i skrócenia terminów udzielania zezwoleń na inwestycje OZE.

EN

The article presents the actions of the European Commission included in the REPowerEU plan, intended on the one hand to ensure the energy safety of the EU member states after the Russian aggression against Ukraine and regarding the sanctions imposed on Russia, and on the other hand – to limit the currently intensifying and increasingly negative climate changes. In order to counteract these changes, it is necessary to phase out the utilisation of fossil fuels in favour of renewable energy sources (RES). The share of RES energy in the energy balances of selected European and non-European countries has been characterised by presenting the magnitude of the installed power of electricity originating from the individual types of energy sources: wind, sunlight, water, biomass (solid, liquid and gaseous biofuels), as well as from geothermal resources. These data originate from 2021, and they refer to the most advanced countries in the implementation of RES technologies. The second analysed parameter is the amount of heat generated from renewable sources and acquired in the process of high-efficiency cogeneration. The chapter involving the share of renewable energy in Polish energy structure presents the results from the 1st half of 2022, pointing out that green energy amounted to only 22.5% of the entire produced energy, with the highest percentages of wind farms (11.9%) and photovoltaic installations (4.4%). The enormous growth of photovoltaics in the country (the number of installations in May 2022 was 1,083,600) is emphasised along with the high development potential of heat pumps. Selected national documents having an impact on the creation of new RES are discussed along with the necessity to adjust them to the current needs, and to introduce simplified procedures and reduction of the times of granting permits for RES investments.

19

Efficiency of preparation for solid fuel burning

Kravets Taras, Semerak Mykhailo, Galyanchuk Igor, Yurasova Oksana

Mining Science

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2022

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Vol. 29

205--220

EN

The research presented in this study focuses on solid fuel and the process of preparing it for combustion. This topic is highly relevant as it plays a significant role in providing energy to the population and contributes to Ukraine's independence in the economic and energy sectors. Understanding the processes involved in solid fuel preparation is crucial for ensuring efficient energy production and minimizing negative environmental impacts. Therefore, this study aims to provide valuable insights into this area of research. The purpose of the work is to analyze the efficiency of preparation for burning solid fuel and to introduce effective tools that will allow to increase the efficiency of preparation to a new level. The article employed various methods to analyze the topic at hand, including the analytical method, deduction method, functional method, statistical method, synthesis method, and other relevant approaches. In the course of the research, the peculiarities of solid fuel and its differences with other sources from which energy is obtained were noted, errors in the preparation for the burning process of this object and the reasons for their appearance were analyzed. Ineffective methods of increasing the efficiency of preparation for burning solid fuel and their impact on the quality of this process were identified. It was determined that the process of burning solid fuel plays the most important role in increasing the efficiency of power plants of industrial enterprises and not only that.

20

Logistyczna ciągłość działania w aspekcie sprawności informacyjnej

Zaskórski Piotr, Miszalski Włodzimierz

Systemy Logistyczne Wojsk

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2021

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Vol. 55, no. 2

173--192

PL

W artykule zamierza się dokonać swego rodzaju retrospekcji związanej z osobistymi, wieloletnimi doświadczeniami autora w projektowaniu i wdrażaniu wielu systemów informatycznych wspomagających procesy logistyczne w SZ RP oraz w gospodarce narodowej. Retrospekcja wzbogacona wieloma nowoczesnymi rozwiązaniami technologicznymi wyznacza kilka strategii informacyjnych, których ramy pozwalają na zapewnianie ciągłości działania systemów logistyki w organizacjach złożonych i w odniesieniu do indywidualnych interesariuszy. Stąd akcentuje się tzw. „info-preformizm” odnoszący się do uniwersalnych atrybutów systemu informacyjnego logistyki oraz oczekiwań odbiorcy końcowego, ale z silną weryfikacją ich trafności w określonym czasie i miejscu poprzez wykorzystanie zasobów informacyjnych własnych i gromadzonych w cyberprzestrzeni oraz stosowanie zaawansowanych modeli ich eksploracji dla generowania wiedzy, zapewniającej bezpieczeństwo i ciągłość działania całego łańcucha dostaw. W artykule podjęto więc problem badawczy związany z możliwością zapewniania ciągłości działania logistyki poprzez szerokie wykorzystanie współczesnych rozwiązań teleinformatycznych usprawniających procesy informacyjne. Przyjęto zatem hipotezę o silnym wpływie tej klasy rozwiązań na sposób funkcjonowania całego systemu logistyki dowolnego podmiotu. Cel badań związany jest bezpośrednio z weryfikacją przyjętej hipotezy, co zostało zilustrowane przez wykorzystanie metody analizy systemowej oraz modelowania uniwersalnych rozwiązań. Zaprezentowane strategie informacyjne stanowią logiczny ciąg rozwojowy systemów informacyjnych i określają etapy tworzenia kompleksowych narzędzi wspierających różne obszary i fazy funkcjonowania logistyki. Prezentowane narzędzia informatyczne stanowią ważny komponent współczesnych systemów logistyki wzmacniający ich efektywność oraz użyteczność, funkcjonalność i niezawodność.

EN

The article intends to make a kind of retrospection related to the author’s personal, longstanding experience in designing and implementing many IT systems supporting logistics processes in the Polish Armed Forces and in the national economy. Retrospection enriched with many modern technological solutions sets out several information strategies, the framework of which allows to ensure the continuity of logistics systems in complex organizations and in relation to individual customers. Therfore, the so-called „info-preformism” referring to the universal attributes of the logistics information system and the expectations of the end user is emphasized, but with a strong verification of their accuracy at a specific time and place through the use of own and collected information resources in cyberspace, as well as the use of advanced models of their exploration to generate knowledge, which ensure the security and continuity of the complete supply chain. Therefore, the article addresses a research problem related to the possibility of ensuring the continuity of logistics through the wide use of modern ICT solutions that improve information processes. Therefore, a hypothesis was adopted about the strong impact of this class of solutions on the functioning of the entire logistics system of any entity. The aim of the research is directly related to the verification of the adopted hypothesis, which was illustrated by the use of the method of system analysis and modeling of universal solutions. The presented information strategies constitute a logical development sequence of information systems and define the stages of creating comprehensive tools supporting various areas and phases of logistics operation. The presented IT tools are an important component of modern logistics systems, strengthening their efficiency as well as usability, functionality and reliability.