Publikační činnost Katedry ekonomiky a managementu v průmyslu / Publications of Department of Economics and Management in Metallurgy (634)

Permanent URI for this collectionhttp://hdl.handle.net/10084/64740

Kolekce obsahuje bibliografické záznamy publikační činnosti (článků) akademických pracovníků Katedry ekonomiky a managementu v průmyslu (634) v časopisech registrovaných ve Web of Science od roku 2003 do roku 2022.
Do kolekce jsou zařazeny:
a) publikace, u nichž je v originálních dokumentech jako působiště autora (adresa) uvedena Vysoká škola báňská-Technická univerzita Ostrava (VŠB-TUO),
b) publikace, u nichž v originálních dokumentech není v adrese VŠB-TUO uvedena, ale autoři prokazatelně v době jejich zpracování a uveřejnění působili na VŠB-TUO.

Bibliografické záznamy byly původně vytvořeny v kolekci Publikační činnost akademických pracovníků VŠB-TUO, která sleduje publikování akademických pracovníků od roku 1990.

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Now showing 1 - 20 out of 60 results

The impact of the development of personnel costs on the profitability indicators of road freight transport companies in the Czech Republic
(4S go, s.r.o., 2022) Kutáč, Josef; Janovská, Kamila; Kutáč, Tomáš; Besta, Petr
The paper's main objective is to investigate the effects of personnel cost growth between 2014 and 2019 on the profitability of selected large road freight transport companies based on the collection of publicly available data of these transport companies. The first sub-objective of the paper is to conduct the necessary data collection from the financial statements of road freight transport companies with more than 250 workers. The second sub-objective of the paper is to define financial ratios and to assess the impact of personnel cost growth on the profitability of these enterprises. The third sub-objective is to determine the development of selected financial ratios over the period 2014 to 2019 and to evaluate the impact of personnel cost growth on the development of these ratios for selected transport companies. As a result of the fulfilment of these goals, we identified that an increase in personnel cost led in chosen transport companies in the years 2015 - 2016 to a significant decrease in labour productivity in the form of sales per employee and decreased profit. In the years 2017 - 2018, the year-on-year increase in personnel cost slowed down with impact to improved labour productivity and improved profit. In 2019 although another increase in personnel cost occurred, the situation changed, and labour productivity and profit increased. Analysis of these data showed that an increase of labour productivity in the form of sales per employee and profit increase in 2018 and 2019 was done thanks to the increasing price of transportation that covered higher personnel costs.
Management tools and systems - usage in logistics companies in the Czech Republic
(4S go, s.r.o., 2022) Pawliczek, Adam; Kolos, Pavel; Lenort, Radim; Kolumber, Štefan; Wicher, Pavel
The paper presents the analysis and comparison of management tools and systems usage in companies in Czech Republic as the part of the research that has been done in 2013 and then in 2021 via structured questionnaires The aim of the paper is to define which management tools and systems are being used by Czech logistics centers, distribution and transport companies and warehouses, what are differences based on the company size (micro, small and medium, large size companies) and what are similarities and new trends across the research sample. The output of the research presents the total and relative frequency of management tools and systems usage comparing 2013 and 2021 outputs and describe current trend of usage, especially with continuous improvement tools (Kaizen, Lean, 6Sigma) that popularity and positive impact on companies' metrics and results is unarguable. TOP 10 management tools and systems are almost same in 2013 and 2021. Usage of management tools and systems in 2021 is higher than 2013 and the increase is significant. We can see the progress of KPI which total frequency (TF) was 25 and relative frequency (RF) was 5.80% in 2013 and 2021 results presents TF: 292 and RF 76.40%.
Ecological and economic multicriteria optimization of operating alternative propulsion vehicles within the city of Ostrava in the Czech Republic
(Polskie Towarzystwo Ekonomiczne Oddział w Toruniu, Instytut Badań Gospodarczych, 2021) Janovská, Kamila; Vozňáková, Iveta; Besta, Petr; Šafránek, Marek
Research background: Individual car transport significantly burdens the environment, especially in the centres of large cities. There is pollution, traffic jams and an increase in overall noise. In the area of passenger car transport, legislation is being significantly tightened. Therefore, there are also increasing demands on public transport operators in the Czech Republic. Previously, most of the fleet consisted of diesel vehicles. These have been gradually replaced by drives that are significantly more environmentally friendly, such as the Compressed natural gas drive. The requirements defined in relation to the reduction of vehicle emissions are increasingly stricter. A number of cities, not only within the European Union, are addressing significant issues concerning the future of public transport. Purpose of the article: The main objective of the article is to demonstrate an in-depth analysis of the operation of transport vehicles in the Statutory City of Ostrava, both from the cost and environmental point of view. The comparison of transport mean; using CNG, electric and diesel propulsion is made. Specific factors such as the mute profile or the environmental impact of the mode of transport are also taken into account. The extent of the data processed and the multidimensional nature of the assessment offer a unique analysis of the problem. The article provides an exact view of the advantages and disadvantages of operating specific means of transport. Everything is based on data on transport operations in the city of Ostrava (the Czech Republic, EU). Methods: The comprehensive evaluation is based on the application of methods from the tick! of financial accounting, evaluation of measured data from the operation of transport means and. last but not least, on the analysis of empirical data from the given area. The analysed data set is unique due to the time period, as is the multi-criteria evaluation methodology. Findings & value added: The analysis performed demonstrated the economic viability of operating CNG vehicles. The main added value of the article is the unique multi-criteria evaluation procedure for the vehicles. The paper shows the evaluation of a complex decision problem in the transport field in the form of a case study implemented in the city of Ostrava. The evaluation results then consider both cost and environmental factors, which can be described as a comprehensive and highly innovative approach. The defined assessment can then be applied to other European and world metropolises.
Technological and quality aspects of the use of innovative inorganic binders in the production of castings
(MDPI, 2021) Obzina, Tomáš; Merta, Václav; Folta, Martin; Bradáč, Josef; Beňo, Jaroslav; Novohradská, Nikol; Gawronová, Martina; Kroupová, Ivana; Lichý, Petr; Radkovský, Filip; Janovská, Kamila; Vasková, Iveta; Drobíková, Klára; Nguyenová, Isabel
The production of cores for the pre-casting of holes in castings places high demands on the quality of the molding mixtures used. For this reason, organic binders are still used to a large extent, which, although they meet the technological requirements, are a source of pollutant emissions during the production of castings. The current trend towards greening production is therefore looking for a suitable alternative in 'green' inorganic binders. Although for many decades standard inorganic binders could not be compared with organic resins in terms of technological properties, new inorganic binder systems are currently being developed that can largely eliminate these disadvantages, which include, in particular, significantly lower collapsibility and reclaimability, and lower mechanical strength values. Last but not least, the use of these binder systems may be limited by the technological parameter of shelf-life, which is the main focus of this study. The aim of this paper is to evaluate the influence of technological parameters of core production using a new generation of inorganic binder systems on their shelf-life. Shelf-life, defined as the change in mechanical strength and wear resistance as a function of exposure time in a given environment, is evaluated under different climatic conditions.
The recycling of secondary waste in Polish recycling companies
(Wydawnictwo Środkowo-Pomorskiego Towarzystwa Naukowego Ochrony Środowiska, 2021) Wędrychowicz, Maciej; Besta, Petr; Gabryelewicz, Izabela; Stryjski, Roman; Krupa, Patryk
This article analyses the recycling of secondary waste in Polish recycling companies. An innovative method of processing PCBs is presented and trends that should be followed by plants processing non-ferrous metal waste are indicated. In conclusion, it is emphasised that the Polish WEEE recycling market is still at the early development and growth stage and the most important goals that enterprises should set themselves include cost optimisation, improvement of waste management logistics and increases in the level of recycling.
Environmental loads resulting from manufacturing technology
(Wydawnictwo Środkowo-Pomorskiego Towarzystwa Naukowego Ochrony Środowiska, 2021) Gabryelewicz, Izabela; Lenort, Radim; Wędrychowicz, Maciej; Krupa, Patryk; Woźniak, Waldemar
The study of environmental loads resulting from manufacturing technology is of great importance for environmental protection. Applying the principles of sustainable development means "a way of farming in which meeting the needs of the present generation will not reduce the chances of meeting the needs of future generations." Faced with such a challenge, the product must be assessed throughout its entire life cycle (LCA). From the available technologies and materials, one should choose those that are least harmful to the environment. In order to make a correct choice, it is necessary to know and understand the technological processes and phenomena that take place in them. Using off-the -shelf LCA applications, without knowing basic knowledge of manufacturing technology, can bias the results. The aim of the article is to present benefits resulting from the environmental assessment of manufacturing processes.
Innovative inorganic binder systems for the production of cores for non-ferrous metal alloys reflecting the product quality requirements
(MDPI, 2021) Merta, Václav; Beňo, Jaroslav; Obzina, Tomáš; Radkovský, Filip; Kroupová, Ivana; Lichý, Petr; Folta, Martin; Janovská, Kamila; Nguyenová, Isabel; Dostal, Miroslav
The aim of this study is the evaluation of the parameters of core mixtures using different binder systems with regard to the collapsibility of cores after casting and the resulting product quality of castings reflecting surface requirements based on non-ferrous alloys. The research compares organically bonded core mixtures based on phenol-formaldehyde resins for the production of cores with the shell molding (resin coated sand), currently used in the production of aluminum alloy castings in the Brembo Czech s.r.o., and mixtures using innovative inorganic binder systems based on geopolymers; GEOPOL(R) W. The aim of the research is to compare the advantages and disadvantages of these binder systems in order to evaluate the potential of inorganically bonded mixtures to replace organically bonded mixtures, which would lead to a significant reduction in the environmental impacts of industrial production of castings.
Economic and climate efficiency of agriculture in the EU
(Wydawnictwo Środkowo-Pomorskiego Towarzystwa Naukowego Ochrony Środowiska, 2020) Wysokiński, Marcin; Gołasa, Piotr; Bieńkowska-Gołasa, Wioletta; Lenort, Radim; Gromada, Arkadiusz; Golonko, Magdalena; Trębska, Paulina; Gradziuk, Piotr; Bórawski, Piotr
The article in the theoretical part draws attention to the phenomenon of climate change and two-way relations between these changes and agriculture. Agriculture as an economic sector is extremely sensitive to any climatic disturbances. However, as a greenhouse gas (GHG) emitter, it contributes to this process. In the era of significant reductions in GHG emissions, it is becoming increasingly important to obtain the highest economic effects with the smallest external effects (e.g. GHG). The purpose of the article is therefore to determine the level of GHG emissions in agriculture and the economic and climate efficiency of agriculture in EU countries and comparison to other sectors of the economy. The DEA method was used in the study. Calculations were made based on Eurostat data. It was found that the share of GHG emissions of agriculture in the EU represents 10-11% of all emissions in the European Union. Agriculture is the least economically and climatically effective sector of the EU economy. Comparing the agriculture of individual countries, the highest efficiency was achieved by Italy, Cyprus, the Netherlands, Slovakia and Finland, the lowest - Lithuania, Poland and Latvia.
Environment and risks of iron production
(Wydawnictwo Środkowo-Pomorskiego Towarzystwa Naukowego Ochrony Środowiska, 2020) Besta, Petr; Kozel, Roman; Janovská, Kamila; Vilamová, Šárka; Foltan, Drahomír; Piecha, Marian
Iron production is one of the production processes that create a large number of negative externalities towards their surroundings. Iron production is based on the use of a wide range of production operations, which include not only the blast furnace process but also the treatment and processing of ores, sintering, pelletizing and processing of metallurgical waste and its possible storage. All parts of the blast furnace process can have a negative impact on the environment. Within the individual parts of the blast furnace plant, a number of pollutants are produced which negatively affect the environment. They can have both solid and gaseous states. In the case of solid emissions, it is airborne dust, and the gaseous form represents pollutants in the form of sulphur, nitrogen or carbon oxides. From the point of view of the blast furnace plant structure itself, blast furnace, agglomeration processes, palletization processes or the processing of waste from production can be classified as emission points. The article deals with the classification of basic impacts of blast furnace production on the environment. It analyses in detail the negative externalities in ore sintering. It also deals with the analysis of research, which was focused on the degree of reduction of iron oxides ore. The efficiency of the reduction process is crucial in terms of resource use, but also the overall amount of negative externalities. The research was carried out in the environment of a selected iron producer in the Czech Republic.
Improvement of logistics in manufacturing system by the use of simulation modelling: A real industrial case study
(Chair of Production Engineering (CPE); University of Maribor, Faculty of Mechanical Engineering, 2020) Straka, Martin; Khouri, Samer; Lenort, Radim; Besta, Petr
The current practice and the requirements of industrial enterprises in all industrial areas require a detailed display of manufacturing systems course of events. In this paper, we studied the effects and impacts of computer simulation to improve the actual industrial production. We also verified whether the proposed simulation model and its intervention in the logistics of concrete production in a concrete manufacturing enterprise will correspond to reality. The EXTENDSIM simulation software was used. The simulation results utilization in practice has increased the actual production several times. The simulation results indicated that it is necessary to double the intensity of company supply, i.e. a frequency of entry set to 0.15 days for each timber type. This adjustment increased the performance of unutilized devices and the whole manufacturing system several times, up to 54,475 produced building timber elements, which represents an increase of production by about 199.6 % while maintaining company flexibility.
The conditions for implementing a circular economy in the Czech Republic
(Technická univerzita Košice, Fakulta baníctva, ekológie, riadenia a geotechnológií, 2019) Vilamová, Šárka; Podlasová, Anežka; Piecha, Marian; Janovská, Kamila; Šikýř, Petr; Foltan, Drahomír; Šanda, Martin; Bařinka, Karel; Grosoš, Roland
In July 2018, measures of the European Commission regarding the Circular Economy Package (CEP) came into force. All EU Member States have two years since to implement these measures into their national legislations. The aim of the authors is, using available resources, to evaluate current conditions in the Czech Republic in the areas affected by this legislation. It is primarily the area of waste management, which has set values within the CEP that must be achieved within those two years. The article offers an analysis of the circular economy penetration into the Czech legislation. The procedure for introducing changes in legislation is presented through the Waste Management Plan (WMP) for the period 2015-2024. The aim of the article is to verify whether whether the Czech Republic is able to meet the EU and WMP's requirements in the current development of waste management. The authors are first to use the analysis of secondary data from national and transnational sources, from which they created unique and original outcomes for the given issue. After the analysis, they introduced the measures that could be used for the greater motivation of the target groups in order to meet the goals of the Czech Republic. The authors address the concrete impacts of CEP implementation within the Czech Republic and also present Czech examples of good practice.
Sustainability performance assessment of industrial corporation using Fuzzy Analytic Network Process
(Elsevier, 2019) Wicher, Pavel; Zapletal, František; Lenort, Radim
Nowadays, sustainability is one of the leading value-increasing strategies of industrial corporations. In order to implement a sustainable strategy, it is necessary to assess the sustainability performance. Nevertheless, this still represents a relevant gap in the literature and practice. There are a number of frameworks and tools for sustainability performance assessment. Most of them are based on a set of indicators. However, in many corporations the sets are applied and kept disaggregated. Due to this deficiency, aggregated sustainability assessment approaches are often explored by researchers and practitioners. One of the main approaches is the use of multi criteria decision making methods which transform multiple indicator values to a single dimension. Since there are many complex interdependencies among the used sustainability key performance indicators and their relations are uncertain, Fuzzy Analytic Network Process (FANP) appears to be an appropriate tool for aggregated assessing the sustainability performance. The aim of this paper is to develop and verify a methodology for aggregated sustainability performance assessment of an industrial corporation using the FANP approach. Based on analysis of the existing FANP approaches and discussion of their advantages and disadvantages, Logarithmic Fuzzy Preference Programming Methodology was selected for this purpose. Our developed methodology provides a comprehensive aggregated sustainability performance assessment system based on combining three evaluation methods (basic evaluation, trend evaluation, and categorization), and Action matrix, which defines appropriate corrective actions level to achieve the sustainability performance targets. A case study from metallurgical industry was used to verify the developed methodology and to identify critical points and recommendations for its implementation.
Application of the mathematical statistics for the evaluation of the waste incineration process
(Wydawnictwo Środkowo-Pomorskiego Towarzystwa Naukowego Ochrony Środowiska, 2018) Straka, Martin; Malindzaková, Marcela; Khouri, Samer; Rosová, Andrea; Lenort, Radim; Besta, Petr
The article deals with the research on the impacts of waste incineration processes on the environment within a particular region by the means of mathematical statistics. The area of interest for this case study considers the aspects of practical application of using the above methods and principles in order to reduce the environmental impacts of waste incineration process in the concrete region. The Pearson correlation coefficient r(xy) = 0.54 indicates that there is a moderate linear relationship, presented by a direct proportion between the values of incinerated waste quantity and the quantity values of produced heat. The statistics results show that the incineration during a one-year period produces about 15,266 tons of plastic and electrical components, and will release about 590,000 GJ of energy and about 199,000 tons of steam and 287 tons of other emissions with only 3 milligrams of dioxins. The mathematical statistics is used to analyse, and subsequently adjust and improve the waste incineration process in order to achieve the desired parameter values, specifically the calorific values, the amount of heat produced, and the amount of generated steam and air pollutants. The results of mathematical statistics show that there is a direct relationship between the amount of incinerated waste (negative aspect) and the production of electricity (positive), but also the amount of heat produced (positive) and the amount of produced flue gas and ash (negative aspect). The environmental assessments are an important step in building and implementing Environmental Management System (EMS), which consists of the development and evaluation of the analysis followed by the adoption of measures to remedy the deficiencies. The aim of the analysis of the environmental situation within the region of the case study company is a fact-finding in the field of protection of environment that affects the production and non-production operations, and should be monitored the manufacturing practice compliance of the company with the current legislation, the status of operational documentation, the status of internal and external communications in the area of the environmental protection, the responsibilities and liabilities between departments and employees.
Principles of computer simulation design for the needs of improvement of the raw materials combined transport system
(Technická univerzita Košice, Fakulta baníctva, ekológie, riadenia a geotechnológií, 2018) Straka, Martin; Rosová, Andrea; Lenort, Radim; Besta, Petr; Šaderová, Janka
This article is focused on computer simulation design for raw materials transportation. The creation of a simulation model of the combined transport system for the raw materials transportation has its own problematic parts. In general, these are parts, which represent transport nodes, i.e. parts of the system in which raw materials are reloaded from one vehicle to another. The given operations are in practice dependent on the preparedness of all transportation means, which participate in it. To locate operations of reloading of the raw materials from one vehicle to another and the check of the preparedness of the vehicles of the reloading in the simulation system is more demanding because it is necessary to take into consideration several aspects, such as an existence of a vehicle with raw materials, an existence of a vehicle to which it is to be reloaded a suitable freeloader, and so on. The article focuses on defining a procedure and correct steps at the creation of the simulation computer model of the combined raw materials transport system in the EXTENDSIM simulation system based on specific data from a real transport system. As is clear from the proposed procedure of the creation of the combined raw material transport system, as a check element of the transport system preparedness, it is suitable to use the "Gate" block and its features in the EXTENDSIM simulation system. As transpires from the results of simulation of the combined raw material transport system, about 322,000 tons of raw materials at 90-96% with the use of all vehicles is transported during the year.
Dissociation of alkali carbonates and silicates during the process for iron oxide reduction
(Sigma-Not, 2018) Besta, Petr; Janovská, Kamila; Sikorová, Andrea
Fundamentals of processes for redn. of carbonates and silicates to CO, K, Na, Si, SiO2 and FeO in blast furnace were presented. In particular, the cycle of alkaline carbonates and silicates and their influence on the blast furnace atmosphere, construction materials and produced pig Fe were analyzed. The unpublished balance data on blast furnace charge compn. and quality taken form the Czech industrial metallurgical practice were also included and discussed.
Metallurgy in the Czech Republic: a spatio-temporal view
(Hrvatsko Metalurško Društvo, 2017) Sucháček, Jan; Samolejová, Andrea; Seďa, Petr
The objective of this paper is to introduce the stochastic input-output model of the impact of metallurgy sector on the Czech economy. Contrary to original input-output model, which is of deterministic nature, we reckon with interval estimates of the development of metallurgy sector. They help us to surpass deterministic impediments when analyzing and forecasting the possible developmental tendencies of metallurgy sector in various economies.
The optimization of the production of sinter as the feedstock of the blast furnace process
(Hrvatsko Metalurško Društvo, 2017) Besta, Petr; Wicher, Pavel
The performance of the sintering process can be increased by means of various procedures. One of the options is increasing the permeability of the sintering charge and improving the gas-dynamic conditions during the combustion. This can be achieved by dosing coarse sinter on the sintering strands. This article analyzes a research conducted in order to experimentally verify the impact of the use of coarse sinter on the performance of the sintering process.
Removal of zinc from the blast-furnace process
(Sigma-Not, 2016) Besta, Petr
Zn content was monitored in the input raw materials and output products of the industrial blast-furnace process for Fe prodn. The content of Zn in the blast furnace lining was also detd. The possibilities for removing Zn from the blast furnace process were discussed.
Measuring the metallurgical supply chain resilience using fuzzy analytic network process
(Hrvatsko Metalurško Društvo, 2016) Wicher, Pavel; Zapletal, František; Lenort, Radim; Staš, David
The article presents a methodology for measuring the metallurgical supply chain resilience, which enables the ascertainment of key resilience capabilities and measurable criteria, and determining a level of the resilience. The methodology is based on Analytic Network Process (ANP), which is used to solve the complex decision-making problems, whose structures can be mapped as non-linear networks. Since ambiguous pairwise comparisons expressed by fuzzy sets are considered, the Fuzzy Analytic Network Process (FANP) is applied. The methodology is verified on the generalised model of a metallurgical supply chain. The SuperDecisions software was used for the application. The experiments performed demonstrate the high level of suitability of the FANP approach for measuring metallurgical supply chain resilience.
Quality quantification model of basic raw materials
(Hrvatsko Metalurško Društvo, 2016) Vilamová, Šárka; Besta, Petr; Kozel, Roman; Janovská, Kamila; Piecha, Marian; Levit, Adam; Straka, Martin; Šanda, Martin
Basic raw materials belong to the key input sources in the production of pig iron. The properties of basic raw materials can be evaluated using a variety of criteria. The essential ones include the physical and chemical properties. Current competitive pressures, however, force the producers of iron more and more often to include cost and logistic criteria into the decision-making process. In this area, however, they are facing a problem of how to convert a variety of vastly different parameters into one evaluation indicator in order to compare the available raw materials. This article deals with the analysis of a model created to evaluate the basic raw materials, which was designed as part of the research.

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