Issues

Journal & Issues

Volume 28 (2022): Issue 4 (December 2022)

Volume 28 (2022): Issue 3 (September 2022)

Volume 28 (2022): Issue 2 (June 2022)

Volume 28 (2022): Issue 1 (March 2022)

Volume 27 (2021): Issue 4 (December 2021)

Volume 27 (2021): Issue 3 (September 2021)

Volume 27 (2021): Issue 2 (June 2021)

Volume 27 (2021): Issue 1 (March 2021)

Volume 26 (2020): Issue 4 (December 2020)

Volume 26 (2020): Issue 3 (September 2020)

Volume 26 (2020): Issue 2 (June 2020)

Volume 26 (2020): Issue 1 (March 2020)

Volume 25 (2019): Issue 25 (December 2019)

Volume 24 (2019): Issue 24 (September 2019)

Volume 23 (2019): Issue 23 (June 2019)

Volume 22 (2019): Issue 22 (March 2019)

Volume 21 (2018): Issue 21 (December 2018)

Volume 20 (2018): Issue 20 (September 2018)

Volume 19 (2018): Issue 19 (June 2018)

Volume 18 (2018): Issue 18 (March 2018)

Volume 17 (2017): Issue 17 (December 2017)

Volume 16 (2017): Issue 16 (September 2017)

Volume 15 (2017): Issue 15 (June 2017)

Volume 14 (2017): Issue 14 (March 2017)

Journal Details
Format
Journal
eISSN
2353-7779
First Published
30 Mar 2018
Publication timeframe
4 times per year
Languages
English

Search

Volume 28 (2022): Issue 3 (September 2022)

Journal Details
Format
Journal
eISSN
2353-7779
First Published
30 Mar 2018
Publication timeframe
4 times per year
Languages
English

Search

12 Articles
Open Access

Employee perception of CSR and its effects on the company’s image

Published Online: 05 Aug 2022
Page range: 210 - 216

Abstract

Abstract

Understanding and promoting the CSR is an important societal issue, and circumstances force modern-minded management to abandon the classical model of only the necessary fulfilment of legally set obligations. There has been a lot of study done on employee perceptions of CSR in the workplace, but very little has been done on how employees comprehend CSR and how they received it at their work-place in chosen countries. Research was carried out based on a questionnaire survey with data collection from September 2020 to March 2021, with a total of 1103 respondents. The aim of the article is to describe the CSR concept among employees meaning in selected countries: Zimbwabwe, Czech Republic, Poland. The measuring instrument used in the study was the questionnaire method, in which the research tool is a questionnaire CAWI - Computer Assisted Web Interview. It was shown that enterprises apply CSR activities, but they are not fully aware of the CSR benefits.

Keywords

  • CSR
  • awareness
  • responsibility
  • strategy
Open Access

E-commerce and last mile delivery technologies in the European countries

Published Online: 05 Aug 2022
Page range: 217 - 224

Abstract

Abstract

Society, companies and institutions are involved in a digital transformation that can be pervaded in various industries or sectors, and this also applies to communication, sales and distribution channels. The possibilities of e-commerce have also increased and world trade has been further developed. In 2020, more than two billion people bought goods or services over the Internet. Customer satisfaction depends on the solution of the last mile process, the method of picking up shipments as well as the time and place of picking up the shipment. The most common forms of off-premises delivery are automated parcel locker or machine (APM) and pick-up and drop-off delivery (PUDO). The aim of the paper is to analyse the level of the PUDO and APM network in European countries and in the V4 countries with regard to the size of the country and the population. For this purpose, it was necessary to focus on determining the population per 1 PUDO and the number of inhabitants per 1 APM in individual European countries and subsequently in the V4 countries. The obtained data were processed and recalculated in Excel. The results showed that within European countries the best values were achieved by Finland with 526 inhabitants per 1 PUDO and Spain with 188 inhabitants per 1 APM. Regarding the V4 countries, the Czech Republic achieved the best value in the case of inhabitants on PUDO with 729 inhabitants per 1 PUDO and in the case of APM Poland with 3,184 inhabitants per 1 APM.

Keywords

  • e-commerce
  • last mile delivery
  • out of home delivery
  • automated parcel machine
  • pick-up and drop-off delivery
Open Access

Investigation of defective reinforced concrete beams with obtained damage of compressed area of concrete

Published Online: 05 Aug 2022
Page range: 225 - 232

Abstract

Abstract

In the building industry, it is a frequent cause of damage to elements at different stages: during transportation, operation, installation, etc. Since replacing an element is not always possible due to various circumstances, it entails significant financial losses, logistics, and others. For this reason, the expediency of studying the effect of damage on the bearing capacity of reinforced concrete elements is growing. This effect is dependent on its type and has significant variability. In the case of the combination of the defect and damage in reinforced concrete elements, the complexity of the research of this element increases significantly. In this article is discussed: a review of damaged reinforced concrete elements; researching the influence of the damage and additional factors on the element; developed testing methodology for bending reinforced concrete elements with damage to concrete in a compressed zone with insufficient reinforcement, when performing damage to the action of the load and during the action of the load, is presented; the influence on the deformability and bearing capacity of the variability of damage on the sample with insufficient reinforcement is reflected, taking into account the factor of change in the load at which the damage is performed; a comparison is made of the dependence of the change in the actual height of the compressed zone on the change in the load on the elements; implementation of conclusions on the result of the study.

Keywords

  • bending elements
  • reinforced concrete beam
  • damages
  • defects
  • bearing capacity
Open Access

Experimental studies of the possibility of laser processing as a cleaner method of achieving a surface with good adhesion

Published Online: 05 Aug 2022
Page range: 233 - 240

Abstract

Abstract

In manufacturing processes many technological operations are designed, in which the adhesive properties of the treated surface are very important. These are processes related to application of any coating on the surface, such as gluing, painting, varnishing and others. Durability of coatings depends on proper preparation of the surface to which they are going to be applied. Conventional methods, such as grinding, sandblasting with subsequent washing and degreasing, as well as galvanic treatment applied to e.g. aluminium alloys - require the use of not only specific equipment but also chemical substances. They often lead to a significant burden on the environment due to their harmful properties. In an experimental study, attention was drawn to the significant environmental aspects of such a technological process and work was carried out to demonstrate whether it is possible to eliminate toxic and hazardous substances and to create good adhesion conditions by laser processing. To this purpose, samples were made out of two representative materials: X6Cr17 steel and AW-2024 aluminium alloy, abrasive surface treatment or in a galvanic bath and then washed, degreased and dried. Laser surface treatment without the use of additional chemicals was proposed as an environmentally cleaner technology. Surface roughness and adhesion of the test polymer coating were measured for comparative evaluation of the applied treatment methods. Obtained results were discussed in terms of the possibility of eliminating harmful influences and implementing laser treatment as a cleaner technology in the production of components requiring coating.

Keywords

  • laser
  • surface
  • roughness
  • adhesiveness
  • cleaner technology
Open Access

Influence of Shot Peening on the Wear Behaviour of Medium Carbon Steel

Published Online: 05 Aug 2022
Page range: 241 - 245

Abstract

Abstract

Influence of shot peening on the wear behaviour of medium carbon, C55 steel was experimentally verified. Experimental work included determination of the chemical composition, heat treatment, microstructure evaluation, mechanical properties measurement, shot peening treatment, the magnitude of the compressive residual stresses was evaluated, roughness profiles measurement and finally the friction tests. The results evidence the significant role played by the applied shot peening on wear behaviour of medium carbon steel. An important effect of surface roughness has been demonstrated. The coefficient of friction after shot peening compared to ground surface increased, 1.44 – 1.85 times.

Keywords

  • steel
  • shot peening
  • wear behaviour
Open Access

Analysis of the maturity of process monitoring in manufacturing companies

Published Online: 05 Aug 2022
Page range: 246 - 251

Abstract

Abstract

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.

Keywords

  • management and quality
  • process
  • process monitoring
  • improvement
Open Access

Pro-ecological possibilities of using metallurgical waste in the production of aggregates

Published Online: 05 Aug 2022
Page range: 252 - 256

Abstract

Abstract

Waste management is a very important issue for the sustainable development of the modern world. The metallurgical industry is an industry that has been generating and still generates large amounts of waste that may have a negative impact on the natural environment and human health. Metallurgical waste comes from current production and is collected in landfills/heaps. Any research enabling the management of waste, including metallurgical waste, is justified. This study presents the results of research on waste that can be used in the production of aggregates – research related to natural radioactivity and the introduction of hazardous substances into water or soil. The study highlights the diversified chemical composition of metallurgical waste, which requires detailed research of the waste before it is directed to the production of aggregates. Aggregate, as a building material, is subject to specific legal (normative) regulations. Metallurgical waste that meets the requirements for the protection of the natural environment and human health should be used for the production of building materials - it is an environmentally friendly activity that implements the principles of sustainable development.

Keywords

  • Metallurgical waste
  • Environmental
  • Hazardous substances
  • chemical elements
  • Aggregates
Open Access

Sustainable consumption among children and adolescents

Published Online: 05 Aug 2022
Page range: 257 - 267

Abstract

Abstract

Young consumers (children and adolescents) play an increasingly important role in the functioning of the modern consumer market. Accordingly, it is becoming more important to promote sustainable, ecological consumption patterns among this group. The authors of the article analysed the results of a survey conducted on a group of 1326 children aged 9 to 15. The purpose was to diagnose the awareness and functioning patterns of consumption among the studied group of young consumers from the Polish market and to formulate a set of recommendations for the process of their ecological, economic and social education aimed at building sustainable consumption patterns. During the research process, an attempt was made to diagnose the ability to identify eleven selected, popular, pro-ecological graphic symbols placed on consumer products, aimed at assessing the skills of young consumers to identify products with better environmental parameters. The collected empirical data was analysed with the R-project program using the following methods: descriptive statistics, nonparametric Kruskal-Wallis test and Pearson Chi-square test of independence. As a result of the use of the comparative analysis method, the results of research in individual age groups of young consumers were compared and interpreted. After the research, the authors concluded that the education system lacks actions to consolidate the acquired knowledge in the field of ecolabeling, which results in large disproportions in the recognition of eco-labels both in individual age groups and in relation to selected symbols. It is disturbing that only 12.2% of the interviewed learners indicated the eco-label as a decisive factor in purchasing a food product. The authors of the article believe that among the group of young consumers, actions should be taken to raise awareness of sustainable consumption, and this requires consistent and differentiated steps at all levels of their education.

Keywords

  • sustainable consumption
  • child as a consumer
  • young consumers
  • sustainable development
  • ecolabelling
Open Access

How car producers are driving toward sustainable supplier development

Published Online: 05 Aug 2022
Page range: 268 - 278

Abstract

Abstract

Sustainable supplier development helps to improve mutually the supplier’s as well as the buying company sustainability performance. The producer could choose guidance, compliance or capacity building activities to develop its supplier or implement them all. This paper aims to present how the car producers practice sustainable supplier development taking into account different types of approaches and implementation tools. The authors applied content analysis to investigate approaches of six car producers from EU member states. The data was collected from the sustainability reports and complemented with the available information of the supplier sustainability requirements and the code of conduct of each car producer. The findings revealed that analysed car producers use similar approaches to develop their suppliers in the context of sustainability. All of them use mix of activities from all identified categories and collaborate within industry initiatives devoted to spread sustainability in supply chain.

Keywords

  • sustainability
  • supplier development
  • automotive
  • CSR report
Open Access

Verification of the probability of elastomers degradation in natural environments

Published Online: 05 Aug 2022
Page range: 279 - 282

Abstract

Abstract

A wide range of elastomers allows to manufacture products that meet high demands of consumers. They are prepared from a mixture of several rubbers, rubber chemicals, additives and reinforcing materials (fibres), which allows you to obtain the desired properties of the products. The other components of rubber compounds are fillers, carbon blacks and plasticizers. Rubber chemicals supplement the mixture in small quantities of related products, which affect vulcanization and regulate their properties, so they have an irreplaceable role in the preparation of rubber products. The aim of experimental part is to assess the properties of the degradation environment on samples of rubber composites to change their properties. The result of the performed mechanical tests to evaluate and compare the obtained values of mechanical properties of rubber compounds and to predict the possibility of biological degradation of the tested material.

Keywords

  • rubber
  • degradation
  • mechanical properties
  • environment
  • waste
Open Access

Improvement and evaluation of the financial (accounting) services quality in the era of SARS-COV-2

Published Online: 05 Aug 2022
Page range: 283 - 288

Abstract

Abstract

The changes brought about by the spread of COVID-19 require from entrepreneurs a new approach to the way they manage their businesses. Accounting offices are also facing a major challenge these days. In addition to the constant changes in tax regulations and the implementation of many new provisions concerning anti-crisis shields, the way of customer service in accounting offices has also changed as they had to adapt to the new reality. The aim of this article is to present the importance of improving the quality of accounting services in the pandemic era. The first part of the paper includes the scope of services and theoretical aspects of customer service in accounting offices in the era of SARS-CoV-2 as well as the characteristics of the concept of quality. Subsequently, the results of an anonymous survey conducted among entrepreneurs who are clients of accounting offices are presented, which contributed to the formulation of conclusions on the significance of customer service quality in accounting offices. The article highlights the significant changes in the way tasks are performed in accounting firms and financial departments. Among the modern methods of providing accounting services, two have been selected which (according to the respondents) will significantly effect on the service providing quality (in particular by limiting personal contact of contractors).

Keywords

  • quality
  • quality improvement
  • service quality
  • accounting service
  • financial service
  • service management
Open Access

The use of combined quality management instruments to analyze the causes of non-conformities in the castings of the cover of the rail vehicle bearing housing

Published Online: 05 Aug 2022
Page range: 289 - 294

Abstract

Abstract

The most critical activities influencing the success of each company are continuous improvement of the quality of manufactured products and monitoring of the production process. Skillful use of available technologies and quality management tools allows for eliminating casting non-conformities and preventing their repetition in the future. The research aimed to analyze the types of defects occurring in castings, the location of their most frequent occurrence areas, and to identify the causes of defects in castings of bearing housings used in rail vehicles. The benefits of a combination of quality management tools for diagnosing material discontinuities in the analyzed castings are presented in this article.

Keywords

  • quality control
  • quality management tools
  • Pareto-Lorentz diagram
  • casting defects
12 Articles
Open Access

Employee perception of CSR and its effects on the company’s image

Published Online: 05 Aug 2022
Page range: 210 - 216

Abstract

Abstract

Understanding and promoting the CSR is an important societal issue, and circumstances force modern-minded management to abandon the classical model of only the necessary fulfilment of legally set obligations. There has been a lot of study done on employee perceptions of CSR in the workplace, but very little has been done on how employees comprehend CSR and how they received it at their work-place in chosen countries. Research was carried out based on a questionnaire survey with data collection from September 2020 to March 2021, with a total of 1103 respondents. The aim of the article is to describe the CSR concept among employees meaning in selected countries: Zimbwabwe, Czech Republic, Poland. The measuring instrument used in the study was the questionnaire method, in which the research tool is a questionnaire CAWI - Computer Assisted Web Interview. It was shown that enterprises apply CSR activities, but they are not fully aware of the CSR benefits.

Keywords

  • CSR
  • awareness
  • responsibility
  • strategy
Open Access

E-commerce and last mile delivery technologies in the European countries

Published Online: 05 Aug 2022
Page range: 217 - 224

Abstract

Abstract

Society, companies and institutions are involved in a digital transformation that can be pervaded in various industries or sectors, and this also applies to communication, sales and distribution channels. The possibilities of e-commerce have also increased and world trade has been further developed. In 2020, more than two billion people bought goods or services over the Internet. Customer satisfaction depends on the solution of the last mile process, the method of picking up shipments as well as the time and place of picking up the shipment. The most common forms of off-premises delivery are automated parcel locker or machine (APM) and pick-up and drop-off delivery (PUDO). The aim of the paper is to analyse the level of the PUDO and APM network in European countries and in the V4 countries with regard to the size of the country and the population. For this purpose, it was necessary to focus on determining the population per 1 PUDO and the number of inhabitants per 1 APM in individual European countries and subsequently in the V4 countries. The obtained data were processed and recalculated in Excel. The results showed that within European countries the best values were achieved by Finland with 526 inhabitants per 1 PUDO and Spain with 188 inhabitants per 1 APM. Regarding the V4 countries, the Czech Republic achieved the best value in the case of inhabitants on PUDO with 729 inhabitants per 1 PUDO and in the case of APM Poland with 3,184 inhabitants per 1 APM.

Keywords

  • e-commerce
  • last mile delivery
  • out of home delivery
  • automated parcel machine
  • pick-up and drop-off delivery
Open Access

Investigation of defective reinforced concrete beams with obtained damage of compressed area of concrete

Published Online: 05 Aug 2022
Page range: 225 - 232

Abstract

Abstract

In the building industry, it is a frequent cause of damage to elements at different stages: during transportation, operation, installation, etc. Since replacing an element is not always possible due to various circumstances, it entails significant financial losses, logistics, and others. For this reason, the expediency of studying the effect of damage on the bearing capacity of reinforced concrete elements is growing. This effect is dependent on its type and has significant variability. In the case of the combination of the defect and damage in reinforced concrete elements, the complexity of the research of this element increases significantly. In this article is discussed: a review of damaged reinforced concrete elements; researching the influence of the damage and additional factors on the element; developed testing methodology for bending reinforced concrete elements with damage to concrete in a compressed zone with insufficient reinforcement, when performing damage to the action of the load and during the action of the load, is presented; the influence on the deformability and bearing capacity of the variability of damage on the sample with insufficient reinforcement is reflected, taking into account the factor of change in the load at which the damage is performed; a comparison is made of the dependence of the change in the actual height of the compressed zone on the change in the load on the elements; implementation of conclusions on the result of the study.

Keywords

  • bending elements
  • reinforced concrete beam
  • damages
  • defects
  • bearing capacity
Open Access

Experimental studies of the possibility of laser processing as a cleaner method of achieving a surface with good adhesion

Published Online: 05 Aug 2022
Page range: 233 - 240

Abstract

Abstract

In manufacturing processes many technological operations are designed, in which the adhesive properties of the treated surface are very important. These are processes related to application of any coating on the surface, such as gluing, painting, varnishing and others. Durability of coatings depends on proper preparation of the surface to which they are going to be applied. Conventional methods, such as grinding, sandblasting with subsequent washing and degreasing, as well as galvanic treatment applied to e.g. aluminium alloys - require the use of not only specific equipment but also chemical substances. They often lead to a significant burden on the environment due to their harmful properties. In an experimental study, attention was drawn to the significant environmental aspects of such a technological process and work was carried out to demonstrate whether it is possible to eliminate toxic and hazardous substances and to create good adhesion conditions by laser processing. To this purpose, samples were made out of two representative materials: X6Cr17 steel and AW-2024 aluminium alloy, abrasive surface treatment or in a galvanic bath and then washed, degreased and dried. Laser surface treatment without the use of additional chemicals was proposed as an environmentally cleaner technology. Surface roughness and adhesion of the test polymer coating were measured for comparative evaluation of the applied treatment methods. Obtained results were discussed in terms of the possibility of eliminating harmful influences and implementing laser treatment as a cleaner technology in the production of components requiring coating.

Keywords

  • laser
  • surface
  • roughness
  • adhesiveness
  • cleaner technology
Open Access

Influence of Shot Peening on the Wear Behaviour of Medium Carbon Steel

Published Online: 05 Aug 2022
Page range: 241 - 245

Abstract

Abstract

Influence of shot peening on the wear behaviour of medium carbon, C55 steel was experimentally verified. Experimental work included determination of the chemical composition, heat treatment, microstructure evaluation, mechanical properties measurement, shot peening treatment, the magnitude of the compressive residual stresses was evaluated, roughness profiles measurement and finally the friction tests. The results evidence the significant role played by the applied shot peening on wear behaviour of medium carbon steel. An important effect of surface roughness has been demonstrated. The coefficient of friction after shot peening compared to ground surface increased, 1.44 – 1.85 times.

Keywords

  • steel
  • shot peening
  • wear behaviour
Open Access

Analysis of the maturity of process monitoring in manufacturing companies

Published Online: 05 Aug 2022
Page range: 246 - 251

Abstract

Abstract

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.

Keywords

  • management and quality
  • process
  • process monitoring
  • improvement
Open Access

Pro-ecological possibilities of using metallurgical waste in the production of aggregates

Published Online: 05 Aug 2022
Page range: 252 - 256

Abstract

Abstract

Waste management is a very important issue for the sustainable development of the modern world. The metallurgical industry is an industry that has been generating and still generates large amounts of waste that may have a negative impact on the natural environment and human health. Metallurgical waste comes from current production and is collected in landfills/heaps. Any research enabling the management of waste, including metallurgical waste, is justified. This study presents the results of research on waste that can be used in the production of aggregates – research related to natural radioactivity and the introduction of hazardous substances into water or soil. The study highlights the diversified chemical composition of metallurgical waste, which requires detailed research of the waste before it is directed to the production of aggregates. Aggregate, as a building material, is subject to specific legal (normative) regulations. Metallurgical waste that meets the requirements for the protection of the natural environment and human health should be used for the production of building materials - it is an environmentally friendly activity that implements the principles of sustainable development.

Keywords

  • Metallurgical waste
  • Environmental
  • Hazardous substances
  • chemical elements
  • Aggregates
Open Access

Sustainable consumption among children and adolescents

Published Online: 05 Aug 2022
Page range: 257 - 267

Abstract

Abstract

Young consumers (children and adolescents) play an increasingly important role in the functioning of the modern consumer market. Accordingly, it is becoming more important to promote sustainable, ecological consumption patterns among this group. The authors of the article analysed the results of a survey conducted on a group of 1326 children aged 9 to 15. The purpose was to diagnose the awareness and functioning patterns of consumption among the studied group of young consumers from the Polish market and to formulate a set of recommendations for the process of their ecological, economic and social education aimed at building sustainable consumption patterns. During the research process, an attempt was made to diagnose the ability to identify eleven selected, popular, pro-ecological graphic symbols placed on consumer products, aimed at assessing the skills of young consumers to identify products with better environmental parameters. The collected empirical data was analysed with the R-project program using the following methods: descriptive statistics, nonparametric Kruskal-Wallis test and Pearson Chi-square test of independence. As a result of the use of the comparative analysis method, the results of research in individual age groups of young consumers were compared and interpreted. After the research, the authors concluded that the education system lacks actions to consolidate the acquired knowledge in the field of ecolabeling, which results in large disproportions in the recognition of eco-labels both in individual age groups and in relation to selected symbols. It is disturbing that only 12.2% of the interviewed learners indicated the eco-label as a decisive factor in purchasing a food product. The authors of the article believe that among the group of young consumers, actions should be taken to raise awareness of sustainable consumption, and this requires consistent and differentiated steps at all levels of their education.

Keywords

  • sustainable consumption
  • child as a consumer
  • young consumers
  • sustainable development
  • ecolabelling
Open Access

How car producers are driving toward sustainable supplier development

Published Online: 05 Aug 2022
Page range: 268 - 278

Abstract

Abstract

Sustainable supplier development helps to improve mutually the supplier’s as well as the buying company sustainability performance. The producer could choose guidance, compliance or capacity building activities to develop its supplier or implement them all. This paper aims to present how the car producers practice sustainable supplier development taking into account different types of approaches and implementation tools. The authors applied content analysis to investigate approaches of six car producers from EU member states. The data was collected from the sustainability reports and complemented with the available information of the supplier sustainability requirements and the code of conduct of each car producer. The findings revealed that analysed car producers use similar approaches to develop their suppliers in the context of sustainability. All of them use mix of activities from all identified categories and collaborate within industry initiatives devoted to spread sustainability in supply chain.

Keywords

  • sustainability
  • supplier development
  • automotive
  • CSR report
Open Access

Verification of the probability of elastomers degradation in natural environments

Published Online: 05 Aug 2022
Page range: 279 - 282

Abstract

Abstract

A wide range of elastomers allows to manufacture products that meet high demands of consumers. They are prepared from a mixture of several rubbers, rubber chemicals, additives and reinforcing materials (fibres), which allows you to obtain the desired properties of the products. The other components of rubber compounds are fillers, carbon blacks and plasticizers. Rubber chemicals supplement the mixture in small quantities of related products, which affect vulcanization and regulate their properties, so they have an irreplaceable role in the preparation of rubber products. The aim of experimental part is to assess the properties of the degradation environment on samples of rubber composites to change their properties. The result of the performed mechanical tests to evaluate and compare the obtained values of mechanical properties of rubber compounds and to predict the possibility of biological degradation of the tested material.

Keywords

  • rubber
  • degradation
  • mechanical properties
  • environment
  • waste
Open Access

Improvement and evaluation of the financial (accounting) services quality in the era of SARS-COV-2

Published Online: 05 Aug 2022
Page range: 283 - 288

Abstract

Abstract

The changes brought about by the spread of COVID-19 require from entrepreneurs a new approach to the way they manage their businesses. Accounting offices are also facing a major challenge these days. In addition to the constant changes in tax regulations and the implementation of many new provisions concerning anti-crisis shields, the way of customer service in accounting offices has also changed as they had to adapt to the new reality. The aim of this article is to present the importance of improving the quality of accounting services in the pandemic era. The first part of the paper includes the scope of services and theoretical aspects of customer service in accounting offices in the era of SARS-CoV-2 as well as the characteristics of the concept of quality. Subsequently, the results of an anonymous survey conducted among entrepreneurs who are clients of accounting offices are presented, which contributed to the formulation of conclusions on the significance of customer service quality in accounting offices. The article highlights the significant changes in the way tasks are performed in accounting firms and financial departments. Among the modern methods of providing accounting services, two have been selected which (according to the respondents) will significantly effect on the service providing quality (in particular by limiting personal contact of contractors).

Keywords

  • quality
  • quality improvement
  • service quality
  • accounting service
  • financial service
  • service management
Open Access

The use of combined quality management instruments to analyze the causes of non-conformities in the castings of the cover of the rail vehicle bearing housing

Published Online: 05 Aug 2022
Page range: 289 - 294

Abstract

Abstract

The most critical activities influencing the success of each company are continuous improvement of the quality of manufactured products and monitoring of the production process. Skillful use of available technologies and quality management tools allows for eliminating casting non-conformities and preventing their repetition in the future. The research aimed to analyze the types of defects occurring in castings, the location of their most frequent occurrence areas, and to identify the causes of defects in castings of bearing housings used in rail vehicles. The benefits of a combination of quality management tools for diagnosing material discontinuities in the analyzed castings are presented in this article.

Keywords

  • quality control
  • quality management tools
  • Pareto-Lorentz diagram
  • casting defects

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