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1

Model supporting the design and improvement of products in their life cycle considering sustainable development criteria

Siwiec Dominika, Pacana Andrzej

Zeszyty Naukowe Politechniki Morskiej w Szczecinie

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2024

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nr 79 (151)

5--13

EN

A market economy requires continuous improvement of products. The classic case is striving to meet customer expectations, i.e., ensuring product quality. However, in terms of sustainable development, it is also necessary to take actions that contribute to the protection of the natural environment and ensure a positive social impact. It is still a challenge. Therefore, the aim of the article is to develop a model for product improvement by considering the criteria of quality, environment, and social impact. The developed model is an original decision indicator, according to which prototypes of modified products are ranked according to their fulfillment of (i) expected quality, (ii) low environmental impact in the life cycle (LCA), and (iii) social responsibility. Based on the results of the model and the proposed decision indicator, it is possible to determine the direction of improvement of any product by assessing prototypes (product variants) in terms of their sustainable development. The model test is carried out for photovoltaic (PV) panels, popular in recent years, verified according to six prototypes and 15 sustainability criteria regarding their quality, environmental impact, and social responsibility. The test confirmed its effectiveness in the case of photovoltaic panels, but the proposed model can be successfully used to design or improve other products. This is supported by a developed original decision indicator supporting the making of multicriteria quality, environmental, and social decisions at the stage of designing new products or improving existing products.

2

Pro-quality improving of products in SMEs from the Visegrad Group Countries (V4)

Siwiec Dominika, Pacana Andrzej, Simková Zuzana, Metszosy Gabriella, Bednárová Lucia

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2024

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z. 194

449--459

EN

Purpose: The aim of the article was to analyse the qualitative approach to product improvement by Small and Medium Enterprises (SMEs) from the Visegrad Group (V4) countries (Poland, Slovakia, Czech Republic, and Hungary). Design/methodology/approach: The analysed results included a research sample of 379 companies in the electromechanical industry (machinery processing industry). The sample was obtained between March and September 2023 by means of a guided survey. Analyses of the results of quantitative research were carried out to verify the approaches of SMEs from V4 countries to pro-quality product, including comparative analyzes of the results obtained. Analyses were performed using the ANOVA test (repeated measure designs). The Mann Whitney U test was used to identify statistically significant differences in entrepreneurs' responses. The significance level adopted was a = 0.05. Findings: It has been shown that SMEs from V4 countries have different approaches to improving product quality. Additionally, it was shown that both in the case of pro-quality activities of SMEs from the V4 countries, the lowest consistency of assessments occurs in the following countries: Poland and Slovakia, Poland and Hungary, Slovakia and Hungary. Practical implications: Research results may contribute to more effective and coherent development activities of SMEs in the V4 countries as part of their sustainable development. Social implications: Based on the research conducted, it is possible to provide SMEs in V4 countries with a more adequate approach to undertake consistent and effective quality activities as part of the improvement of the product. Originality/value: Determining the current pro-quality approach to product improvement in SMEs in the V4 countries. The novelty is also the identification of the importance (level of importance) of these approaches in each V4 country, as well as the determination of the similarities and differences between these approaches in SMEs from countries in the Visegrad Group.

3

Pro-environmental improving products Qualityin SMEs from the Visegrad Group Countries (V4)

Pacana Andrzej, Siwiec Dominika, Molnár László

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2024

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z. 194

375--386

EN

Purpose: The aim of the article was to analyse the pro-environmental approach to products improvement by SMEs from the Visegrad Group (V4) countries. Design/methodology/approach: The research was survey. The survey research was carried out in traditional (paper) and electronic form (MS FORMS). The survey was directed at electronic industries (machinery processing) belonging to small and medium enterprises (SMEs) from V4 countries. The results presented in the article refer to sample size of 379 SMEs, obtained between March and September 2023. Results were analysed in statistical way, i.e.: ANOVA test and Mann Whitney U test by significance level equal to a = 0.05. Findings: SMEs in V4 countries have a similar approach to pro-environmental improving of products. It was shown that pro-environmental activities of SMEs from the V4 countries, the lowest consistency of assessments occurs in the following countries: Poland and Slovakia, Poland and Hungary, Slovakia and Hungary. Practical implications: The research results may contribute to more effective and coherent development activities of SMEs in the V4 countries as part of their sustainable development, and also to take appropriate actions that will be supporting qualitative and environmental products. Social implications: The results can help SME entrepreneurs improve their products to protect the natural environment. In addition, they can be the basis for the development of SMEs from the V4 countries and their unidirectional development, which includes not only improving the quality of products, but also caring for the environment. Originality/value: The originality of the research is the determination of the current pro-environmental approach to product improvement in SMEs in the V4 countries. The novelty is the provision of current data on the importance of improving pro-environmental products in SMEs from the V4 countries and their comparison between companies in the electrical machinery industry.

4

Comparison analysis of pro-quality and pro-environmental approaches to products improving in SMEs from the Visegrad Group Countries

Siwiec Dominika, Pacana Andrzej

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2024

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z. 194

461--473

EN

Purpose: The purpose of the research was to perform an in-depth comparative analysis of proquality and pro-environmental approaches to the products improvement in SMEs (belonging to the electrical machinery industry industry) from V4 countries. Design/methodology/approach: An in-depth comparative analysis of pro-quality and proenvironmental approaches to product improvement was carried out in SMEs from V4 countries. Based on previous research (survey research conducted from March to September 2023 including 379 SMEs from V4 countries), two benchmarks for these approaches were developed and further analysed. Statistical analyses were used, i.e. Box-and-whisker chart and Wilcoxon paired test in STATISTICA 13.3. on the level of significance p<0.05. Findings: It was shown that SME entrepreneurs from V4 countries have a relatively similar approach to the improvement of pro-quality and pro-environmental products. The pro-quality approach is more important than pro-environmental in case of product improvement. Practical implications: Research results can be the basis for defining more precise directions for the development of SMEs in V4 countries and increasing cooperation between consortium regions in the development of product production in line with the idea of sustainable development and current customer expectations. Social implications: The results can have a positive impact on public attitudes, mainly entrepreneurs from SMEs, but not only in making further efforts to improve the quality of products while reducing the negative impact on the environment. This behavior may contribute to increased customer satisfaction with purchased products, but also to the development of the economies of the V4 countries and to meeting the requirements of sustainable development. Originality/value: Originality of the research includes determining the current approach of SMEs in the electrical machinery industry in V4 countries to meeting customer expectations regarding product quality, while striving to achieve environmentally friendly products.

5

Qualitative-environmental aspects of products improvement in SMEs from V4 countries

Siwiec Dominika, Pacana Andrzej, Gavurová Beáta, Ključnikov Aleksandr, Nagy Szabolcs

Production Engineering Archives

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2024

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Vol. 30, Iss. 1

75--85

EN

Sustainable development has caused companies to try to adapt their activities to changing customer expectations, but also to climate change. This poses a particular challenge for SMEs from developing countries. Therefore, the objective of the investigation was to analyse the qualitative-environmental aspects of the improvement of the products in SMEs from the countries of the Visegrad Group (V4). The results analysed constituted a research sample of 379 companies in the electrical machinery industry (machine processing industry), which were obtained in the period from March to September 2023 through a targeted survey. The area of analysis included, e.g.: (i) environmental issues of selected areas of activity, (ii) measures of environmental activity, and (iii) selected qualitative-environmental aspects. Analyses of the research results were carried out using quantitative and qualitative analyses, including comparative analyses, e.g. regarding the implementation status of ISO 14001, EMAS, and ISO 9001. These techniques were used: word cloud, ANOVA test and Mann Whitney U test at the significance level of α=0.05. It has been shown that SMEs in V4 countries focus their activities on improving products to improve their quality rather than limiting their negative environmental impact. Originality of the research is the identification of significant differences in the qualitative-environmental aspects undertaken when SMEs from V4 countries. Research results may contribute to the development activities more effective and coherent in the V4 countries, to achieve a stable and competitive advantage on the market as part of the qualitative and environmental improvement of the products. The research results and the conclusions drawn from them can be used by scientists and practitioners to shape the target states of enterprises in the period of increasing involvement in proecological ideas.

6

Wsparcie naukowo-dydaktyczne z zakresu inżynierii produkcji - przegląd obszarów i kierunków badań

Knosala Ryszard, Kubon Maciej, Lorencowicz Edmund, Saniuk Sebastian, Skołud Bozena, Stadnicka Dorota

Zarządzanie Przedsiębiorstwem

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2023

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Vol. 26, nr 2

13--21

EN

Production engineering involves the integration of various scientific disciplines and serves as a link between different fields of science. With the advent of new technologies and the emergence of increasingly narrow specializations, it has become necessary to identify where and how modern technologies can provide specific benefits. Despite not being classified as a separate discipline, production engineering is present in various other disciplines and fields of science. This article aims to analyze areas related to production engineering that have the support of scientific and teaching staff. The research conducted examines the areas of support, their consequences, and the expected future direction of development in this field.

7

Qualitative-environmental actions expected by SMEs from V4 countries to improve products

Siwiec Dominika, Varga Krisztina, Pacana Andrzej

System Safety : Human - Technical Facility - Environment

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2023

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Vol. 5, iss. 1

28--35

EN

Sustainable development encourages companies to anticipate actions that will help reduce their negative impact on the environment, but will also be beneficial to customers in terms of meeting their expectations. Hence, the purpose was to define the actions that can be expected from SMEs from the V4 countries when improving products and minimizing the negative impact on the natural environment. The research tool was a survey, the presented results of which were obtained from March to September 2023. They included 379 SMEs from the Visegrad Group countries, i.e. Poland, Slovakia, the Czech Republic, and Hungary. The results were analyzed using statistical tests performed in STATISTICA 13.3. For this purpose, the ANOVA test (repeated measurement designs) and the Mann Whitney U test were used to analyze statistically significant differences between the test results. Analyzes were performed at the significance level of α=0.05. The analysis showed that entrepreneurs from the V4 countries expect relatively different actions from SMEs when improving products and minimizing the negative impact on the natural environment. The results from the analysis may be useful in planning sustainable activities in SMEs from the V4 countries, so that these activities contribute to improving the quality of products and at the same time minimizing the negative environmental impact.

8

Fuzzy Multi-criteria Decision Model to Support Product Quality Improvement

Siwiec Dominika, Gawlik Remigiusz, Pacana Andrzej

Management and Production Engineering Review

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2023

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Vol. 14, No. 2

134--149

EN

Improving product quality while making decisions remains a challenge. The objective of this research was to develop a model that supports the precise enhancement of product quality through comprehensive analysis of possibilities, product incompatibilities, root causes, and recommended improvement actions. The model incorporated various tools and methods such as the SMARTER method, expert team selection, brainstorming, Ishikawa diagram, 5M+E rule, FAHP, and FTOPSIS methods. The study demonstrated that integrating quality management tools and decision-making methods into a unified model enables the accurate prioritization of activities for product quality management. This integrated approach represents the novelty of this research. The model was evaluated using a mechanical seal made of 410 alloy. The research findings can be valuable to enterprises seeking to enhance product quality at any stage of production, particularly for modified or new products.

9

Instruments used to improve the betterment of products quality

Hajduk-Stelmachowicz Marzena, Bełch Paulina, Siwiec Dominika, Bednárová Lucia, Pacana Andrzej

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2022

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z. 157

151--171

EN

Purpose: The main goal of the research was to determine the spectrum of instruments supporting management processes that are used to improve the quality of products in terms of sustainable development. We analyzed the degree of their use in the practical functioning of the surveyed enterprises. In addition, the aim of the research was to determine the scope of application of the indicated instruments or the possibility of their use in the decision-making process relating to the improvement of the broadly understood quality of products. Design/methodology/approach: The research method applied are: 1) standardized survey research making based on a survey conducted in contact and remote way conducted in 78 enterprises in south-eastern Poland; 2) analysis of the source documentation and in-depth interviews. It is a component of broader research. Findings: The following methods were used in decision-making processes with varying frequency: the Delphi method by 58% of respondents, Tree of Failure Analysis (by 52%), Event Tree Analysis (by 44%), and the QFD method (by 41% respondents). The surveyed companies that have implemented a vapour management system based on ISO standards tend to use 5 methods out of 25 cited in this study (these are a survey, brainstorming, 5Why and/or 5W2H, benchmarking, and the Delphi method). As a result of using mainly the above mentioned methods in decision-making processes, 74% (out of all) of the respondents indicated an increase in the quality level of products, and 39% of respondents indicated the enhancement of the pro-ecological impact of products on the natural environment. Research limitations/implications: Most of the analysed enterprises from SMEs are tried integrating qualitative-environmental actions as part of improving the quality of products. This approach is crucial when improving the quality of products in SMEs. Practical implications: It is necessary to develop a multidimensional modl enabling the optimization of decision-making processes with the possibility of making full use of the available instruments for improving the quality of the product in such a way as to meet the rapidly changing requirements of stakeholders. Originality/value: The article has cognitive value for development of knowledge, science, quality, and environmental in the area of management of products.

10

Improvement of the machine control process using the work standardisation card

Zwolenik Paulina, Pacana Andrzej, Bednárová Lucia

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2022

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z. 157

743--754

EN

Purpose: The aim of the article was to propose the possibility of implementing a work standardisation card for a company in the passenger land transport industry – a ski lift. Design/methodology/approach: The analysed ski lift, located in Southern Poland, should undergo daily checks on the condition of its equipment to ensure trouble-free operation. Current non-standardised operations may increase the risk of error. The proposed document, the work standardisation card, makes it possible to supervise the control and minimise the possibility of failure. Findings: The introduction of the work standardisation card allows to increase the efficiency of the work and the analysis of the results obtained allowed to classify the most time-consuming activities. Research limitations/implications: In order to reduce costs, as a result of failures, and to increase quality and customer satisfaction, it is proposed to introduce documents as part of the working standard. Practical implications: Future research should focus on opportunities to further improve machine condition monitoring. The presented methodology can be applied to other activities that occur during ski lift operation, such as breakdowns. Originality/value: The work is a useful resource for companies in the tourism and transport industry and the transport sector, due to the universality of the standards used.

11

Determinants of making decisions in improving the quality of products

Siwiec Dominika, Bełch Paulina, Hajduk-Stelmachowicz Marzena, Pacana Andrzej, Bednárová Lucia

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2022

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z. 157

497--507

EN

Purpose: The basic purpose of research was to determine the causes of making the decision that manufacturers on their way to improve the quality of their products. Design/methodology/approach: The research method applied in article is mainly standardized survey research making based on survey conducted in contact and remote way conducted in 78 enterprises in south-eastern Poland. The research process also accompanied analysis of thesource documentation. Findings: It was concluded that decision during improving quality of the product were making mainly in simultaneously with considering customers' requirements of the customers about the quality of the products and the impact of products on the natural environment. Research limitations/implications: Most of the verified enterprises from SMEs are tried integrating qualitative-environmental actions as part of improving the quality of products. This is a favorable condition for further research, so that it is possible to adjust the quality and environmental approach when improving the quality of products in SMEs. Practical implications: Discussion of the results of research have a series of practical implications mainly for product management staff. Especially in organizations that designed new products or also in significant modification of these products. Social implications: Building awareness improves not only quality of products, but also simultaneously in line with sustainable development, including in improving environmental aspects. Originality/value: The article has cognitive value for development of knowledge, science, quality, and environmental in the area of management of products.

12

Analysis of pro-environmental awareness and approach to making decisions in the context of sustainability

Gazda Andrzej, Siwiec Dominika, Pacana Andrzej

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2022

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z. 160

213--225

EN

Purpose: The aim of the study is to analyze environmental awareness among employees of companies producing plastics, and subsequently to draw conclusions about the level of their pro-environmental awareness. The motive for the implementation of pro-environmental awareness research in plastics-producing plants was their harmful impact on the environment. Design/methodology/approach: The research was a survey that was carried out among 44 workers of plastics enterprises located in south-eastern Poland in the first quarter of 2018. During the selection of companies for research, it was included: their location (south-eastern Poland), long-term operation (more than 30 years), the same type of activity (production of plastics), and whether pro-environmental activities were practiced. Findings: It was concluded that the level of awareness of the employees of plastic industry employees was on a low level. Research limitations/implications: The research sample is only a preliminary sample. It is planned to obtain data from a larger number of companies and verify the data. Practical implications: Enterprises should focus on meeting customer needs and maintaining high-quality products, but taking into account pro-environmental measures that should be a priority. This is possible if pro-environmental awareness is continually shaped. Social implications: The pro-environmental awareness is small among employees from the enterprises, in which pro-environmental actions were not practiced. Employees do not know how the processes are carried out in the company and whether they have any impact on the natural environment. Additionally, the employees of companies not used pro-environmental activities are unaware of the threats resulting from the activities of their company and do not know that other companies about the same activities already apply such activities. Originality/value: These results will allow better decisions in the context of sustainability and improvement actions to achieve a higher level of awareness among the plastic production companies' employees.

13

Use of photon emission to identify the degree of microbial contamination of liquid biological substances

Miernik Anna, Kiełbasa Paweł, Dróżdż Tomasz, Wiśniowski Bartłomiej

Przegląd Elektrotechniczny

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2022

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R. 98, nr 5

161--164

EN

The incidence of foodborne infections has increased worldwide over the past few years, with Gram-negative and Gram-positive bacterial pathogens at the epicenter of most reported cases. The aim of this study was to determine the effect of microbial contamination, understood as the abundance of microorganisms per unit of liquid biological substance, on the photon emission rate of the aforementioned substances. Such identification will allow to parametrize the process of microbial multiplication in a given substance by the photon emission rate, which would create a fast and contact-free method of estimating the concerned abundance of microorganisms. It was found that with the increase in the abundance of microorganisms in suspension, the number of photons emitted from it increases and the trend of this increase can be described by a linear function.

PL

Częstość występowania zakażeń przenoszonych na żywność wzrosła na całym świecie w ciągu ostatnich kilku lat, a patogeny bakterii Gram-ujemnych i Gram-dodatnich znajdują się w epicentrum większości zgłaszanych przypadków. Celem badań było określenie wpływu zanieczyszczenia mikrobiologicznego rozumianego jako liczebność mikroorganizmów w jednostce płynnej substancji biologicznej na wielkość emisji fotonowej w/w substancji. Taka identyfikacja pozwoli sparametryzować proces namnażania mikroorganizmów w danej substancji stopniem emisji fotonowej, co stworzyłoby szybką i bezkontaktową metodę szacowania przedmiotowej liczebności mikroorganizmów. Stwierdzono, że wraz ze wzrostem liczebności mikroorganizmów w zawiesinie liczba emitowanych z niej fotonów rośnie a sam trend tego wzrostu można opisać funkcją liniową.

14

Use of photon emission to identify the degree of microbial contamination of liquid biological substances

Miernik Anna, Kiełbasa Paweł, Dróżdż Tomasz, Wiśniowski Bartłomiej

Przegląd Elektrotechniczny

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2022

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R. 98, nr 6

74--77

EN

The incidence of foodborne infections has increased worldwide over the past few years, with Gram-negative and Gram-positive bacterial pathogens at the epicenter of most reported cases. The aim of this study was to determine the effect of microbial contamination, understood as the abundance of microorganisms per unit of liquid biological substance, on the photon emission rate of the aforementioned substances. Such identification will allow to parametrize the process of microbial multiplication in a given substance by the photon emission rate, which would create a fast and contact-free method of estimating the concerned abundance of microorganisms. It was found that with the increase in the abundance of microorganisms in suspension, the number of photons emitted from it increases and the trend of this increase can be described by a linear function.

PL

Częstość występowania zakażeń przenoszonych na żywność wzrosła na całym świecie w ciągu ostatnich kilku lat, a patogeny bakterii Gram-ujemnych i Gram-dodatnich znajdują się w epicentrum większości zgłaszanych przypadków. Celem badań było określenie wpływu zanieczyszczenia mikrobiologicznego rozumianego jako liczebność mikroorganizmów w jednostce płynnej substancji biologicznej na wielkość emisji fotonowej w/w substancji. Taka identyfikacja pozwoli sparametryzować proces namnażania mikroorganizmów w danej substancji stopniem emisji fotonowej, co stworzyłoby szybką i bezkontaktową metodę szacowania przedmiotowej liczebności mikroorganizmów. Stwierdzono, że wraz ze wzrostem liczebności mikroorganizmów w zawiesinie liczba emitowanych z niej fotonów rośnie a sam trend tego wzrostu można opisać funkcją liniową.

15

Effect of constant electric field stimulation of suspensions of selected microorganisms on geometric structure of cells

Kiełbasa Paweł, Miernik Anna, Dróżdż Tomasz

Przegląd Elektrotechniczny

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2022

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R. 98, nr 5

148--151

EN

This paper discusses the effect of constant electric field on the geometrical parameters of selected microorganisms. In the experiment different time of exposure of suspension of microorganisms to constant electric field was applied and then the cell area and its diameter were determined. It was found that with increasing stimulation time the diameter and area of the cells relatively decreased in the case of Enterococcus faecalis strain ATCC 29212 as well as Candida krusei strain ATCC 14243. It should be noted, however, that in the case of Enterococcus faecalis ATCC 29212 cells the area and diameter of the cells after stimulation are higher than in the case of untreated cells, while in the case of Candida krusei ATCC 14243 both the area and diameter of the cells after stimulation are lower than in the cells from the control sample.

PL

W artykule omówiono wpływ oddziaływania stałego pola elektrycznego na parametry geometryczne wybranych mikroorganizmów. W doświadczeniu zastosowano zróżnicowany czas ekspozycji zawiesiny mikroorganizmów na oddziaływanie stałego pola elektrycznego a następnie określono powierzchnię komórki oraz jej średnicę. Stwierdzono, że wraz ze wzrostem czasu stymulacji średnica i pole powierzchni komórek względnie zmniejsza się zarówno w przypadku komórek szczepu Enterococcus faecalis ATCC 29212 jak również szczepu drożdżaka Candida krusei ATCC 14243. Należy jednak zaznaczyć, że w przypadku komórek Enterococcus faecalis ATCC 29212 pole powierzchni i średnica komórek po stymulacji jest wyższa niż u komórek nie poddanych takiemu oddziaływaniu, natomiast w przypadku szczepu Candida krusei ATCC 14243 zarówno pole powierzchni jak i średnica komórek po stymulacji jest niższa niż u komórek z próby kontrolnej.

16

Scheduling of the Manufacturing Cell Work with the Use of a Genetic Algorithm on the Example of a Flexible Production System

Matuszny Marcin

Management and Production Engineering Review

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2022

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Vol. 13, No. 4

98--106

EN

The article is to present the application of genetic algorithm in production scheduling in a production company. In the research work the assumptions of the methodology were described and the operation of the proposed genetic algorithm was presented in details. Genetic algorithms are useful in complex large scale combinatorial optimisation tasks and in the engineering tasks with numerous limitations in the production engineering. Moreover, they are more reliable than the existing direct search algorithms. The research is focused on the effectivity improvement and on the methodology of scheduling of a manufacturing cell work. The genetic algorithm used in the work appeared to be robust and fast in finding accurate solutions. It was shown by experiment that using this method enables obtaining schedules suitable for a model. It gives a group of solutions that are at least as good as those created by the heuristic rules.

17

Prediction of quality level of product considering current customers’ expectations

Siwiec Dominika, Pacana Andrzej

Management and Production Engineering Review

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2022

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Vol. 13, No. 2

127--138

EN

The activities of the organisation concentrate mainly on meeting customers’ requirements. For this purpose, various activities are being conducted for customer satisfaction surveys. In this context, it is important to predict the quality of the product and the changes in the cost of the purchase product. The purpose of this study is to propose a method for predicting the quality level of a product and change the cost of the product considering current customers’ requirements for a combination of product feature states and pro-quality changes. The method includes the calculation of the quality level of the product using the punctationformalised method, where the level depends on a combination of values of states (parameters) attributes of the product, that is, current and modified. The method was tested as an example of a household vacuum cleaner for which 20 attributes were determined. According to the Pareto rule (20/80), the four product attributes important for customers were selected. Thereafter, for important attributes, possible combinations of the values of these attributes were determined. In addition, an algorithm for determining the possible combinations of product attribute states in the MATLAB program was developed. Additionally, the change in the current cost of the product considering the change in the quality level was estimated. The product cost changes were determined based on the actual cost of the product and the current product quality level. The method allows the determination of all combinations of values of state attributes of the product, such that it is possible to take appropriate improvement actions both in terms of quality and cost. The results from the method allow the prediction of product satisfaction for customers and they are favourable in terms of production cost. Therefore, it is possible to design the product in advance and support the producer in preparatory activities.

18

An improving the process of risk assessment occupational for industry

Siwiec Dominika, Pacana Andrzej

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2021

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z. 151

607--614

EN

Purpose: The aim was improving the process of risk assessment occupational for industry, by implemented in this process the fuzzy scale (and the Fuzzy Analytic Hierarchy Process, FAHP). Design/methodology/approach: The FAHP method was integrated with the PN-N-18002 method. Findings: It was demonstrated that implemented the FAHP method in PN-N-18002 method allows on more precise an assessment of the root of threats on the workplace. Research limitations/implications: This method can be used to risk assessment of each workplaces, by integrating the FAHP with any methods of occupational risk assessment. Practical implications: The assumption was to improve the method of risk assessment occupational for industry, in which as was shown the number of accidents in work was the highest. Test of the proposed method was carried out for the operator's position of a floating excavator KG-2.5 in one of Podkarpacie enterprise extracting aggregate. Social implications: This method can be helped to the entity performing the occupational risk assessment in precise identify the root of threats on the workplaces. This will ensure a safe workplace. Originality/value: The originality of the proposed method is to achieve more precise an assessment of the root of threats in the workplace than by using the traditional risk assessment methods.

19

An improving the occupational risk assessment in industrial enterprises

Siwiec Dominika, Woźny Artur, Pacana Andrzej

System Safety : Human - Technical Facility - Environment

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2021

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Vol. 3, nr 1

260--267

EN

An occupational risk assessment is one of the main processes to assure a safe and healthy workplace. It was shown, that this process is particularly important in the cause of industrial enterprises, in which the number of accidents is the largest. In these enterprises, one of the most often practiced methods is the PN-N-18002 method. However, it was concluded this method has some limitations. They concern the way of assessing the risks in the traditional number scale, which is less precise than the fuzzy triangular number (using in FAHP). Therefore, the aim is to improve the process of assessment in industrial enterprises by integrated the PN-N-18002 method with the FAHP method (Fuzzy Analytic Hierarchy Process). The test of the proposed method was made for three machine operator positions used to aggregate extraction in one of the Podkarpacie enterprises. These positions were: loader operator (Ł-34), digger operator (CAT 323), dredge operator (300/250 KREBS 10/8). The concept of the method was to identify in a precise way what is the greatest extent danger to the operators of these workplaces. It was shown, that it is the work at height. It was concluded, that this method can be practice to risk assessment of other workplaces, among others from industrial enterprises. The originality is the integrated risk assessment method (PN-N-18002) with the fuzzy multicriteria decision method (FAHP) as part of achieving the precise results of risk assessment.

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The technique to precisely design the product in a house of quality considering current customers' requirements

Siwiec Dominika, Pacana Andrzej

Quality Production Improvement - QPI

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2021

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Vol. 3, Iss. 1

9--16

EN

The competitive and turbulent environment generates the need to use various techniques to determine the level of product quality. In this aim, it is necessary to determine the direction of improvement attributes and function of the product based on customer requirements, which are usually uncertain. Therefore, the aim of the article is to propose the technique to improve the product quality by precisely determine the customers' requirements and the importance of the quality parameters for the current attributes of the product. This technique is a combination of methods i.e.: the QFD method (Quality Function Deployment) with the GRA method (Grey Relational Analysis). Using the QFD method, customer requirements were translated into technical features of the product. In turn, using the GRA method the imprecise customers' requirements were reduced and the importance of quality parameters was determined in a more accurate way. A test of a combination of the QFD and GRA methods for the household vacuum cleaner was made. The originality of the article is ensuring a precise study of the current attributes of the product from the point of customer satisfaction.