TY  - JOUR
AU  - Spasojević Brkić, Vesna
AU  - Misita, Mirjana
AU  - Perišić, Martina
AU  - Brkić, Aleksandar
AU  - Veljković, Zorica
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4111
AB  - Heavy mobile machinery cabs and their equipment are still not well adjusted to operators, so it is not surprising that we are still witnessing huge consequences of accidents at sites where they operate. The checklist with 39 questions, based on the previous research, is formed, and its’ measurement structure has been tested on the sample of 102 transport, construction, and mining machines, including cranes, excavators, bucket wheel excavators, bulldozers, loaders, graders, backhoe loaders, trenchers, dump trucks, and scrapers by correlation analysis, Cronbach’s alpha, Spearman-Brown and Kendall’s W coefficient, exploratory factor analysis, and confirmatory factor analysis. The results validate the measurement structure of a checklist with only 17 items and five constructs. The results show that special attention should be put to the design of armrests and working conditions/exhaust gases, which are negatively correlated to cab interior space and task visibility. All other correlations between seat characteristics, the characteristics of armrests, whole-body vibration influences, reaching commands, the characteristics of cab interior space and environments, and interpersonal relationships are positive, which means that improvements to one area lead to improvements in another. Accordingly, the proposed model should be used for the fast, efficient, and cost-effective evaluation of ergonomics risks and as a guideline for further cab design improvements.
PB  - MDPI
T2  - Mathematics
T1  - Validating Measurement Structure of Checklist for Evaluating Ergonomics Risks in Heavy Mobile Machinery Cabs
IS  - 1
SP  - 23
VL  - 11
DO  - 10.3390/math11010023
ER  - 

@article{
author = "Spasojević Brkić, Vesna and Misita, Mirjana and Perišić, Martina and Brkić, Aleksandar and Veljković, Zorica",
year = "2023",
abstract = "Heavy mobile machinery cabs and their equipment are still not well adjusted to operators, so it is not surprising that we are still witnessing huge consequences of accidents at sites where they operate. The checklist with 39 questions, based on the previous research, is formed, and its’ measurement structure has been tested on the sample of 102 transport, construction, and mining machines, including cranes, excavators, bucket wheel excavators, bulldozers, loaders, graders, backhoe loaders, trenchers, dump trucks, and scrapers by correlation analysis, Cronbach’s alpha, Spearman-Brown and Kendall’s W coefficient, exploratory factor analysis, and confirmatory factor analysis. The results validate the measurement structure of a checklist with only 17 items and five constructs. The results show that special attention should be put to the design of armrests and working conditions/exhaust gases, which are negatively correlated to cab interior space and task visibility. All other correlations between seat characteristics, the characteristics of armrests, whole-body vibration influences, reaching commands, the characteristics of cab interior space and environments, and interpersonal relationships are positive, which means that improvements to one area lead to improvements in another. Accordingly, the proposed model should be used for the fast, efficient, and cost-effective evaluation of ergonomics risks and as a guideline for further cab design improvements.",
publisher = "MDPI",
journal = "Mathematics",
title = "Validating Measurement Structure of Checklist for Evaluating Ergonomics Risks in Heavy Mobile Machinery Cabs",
number = "1",
pages = "23",
volume = "11",
doi = "10.3390/math11010023"
}

Spasojević Brkić, V., Misita, M., Perišić, M., Brkić, A.,& Veljković, Z.. (2023). Validating Measurement Structure of Checklist for Evaluating Ergonomics Risks in Heavy Mobile Machinery Cabs. in Mathematics
MDPI., 11(1), 23.
https://doi.org/10.3390/math11010023

Spasojević Brkić V, Misita M, Perišić M, Brkić A, Veljković Z. Validating Measurement Structure of Checklist for Evaluating Ergonomics Risks in Heavy Mobile Machinery Cabs. in Mathematics. 2023;11(1):23.
doi:10.3390/math11010023 .

Spasojević Brkić, Vesna, Misita, Mirjana, Perišić, Martina, Brkić, Aleksandar, Veljković, Zorica, "Validating Measurement Structure of Checklist for Evaluating Ergonomics Risks in Heavy Mobile Machinery Cabs" in Mathematics, 11, no. 1 (2023):23,
https://doi.org/10.3390/math11010023 . .

TY  - CONF
AU  - Spasojević Brkić, Vesna
AU  - Misita, Mirjana
AU  - Brkić, Aleksandar
AU  - Veljković, Zorica
AU  - Perišić, Martina
AU  - Papić, Neda
AU  - Janev, Nemanja
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4181
AB  - Nowadays, safety and sustainable business success cannot be viewed in isolation. Risk assessment is a
prerequisite for adequate planning of prevention of destruction of critical potentials, as well as preparation of a
strategy for response to failure in the context of prevention of consequences. An important part of all
construction equipment maintenance is proper record keeping, but it is not done often in practice although it is a
prerequisite of proper risk management. Proper maintenance of excavators maximizes fuel efficiency and
reduces operating costs as well as equipment failure. The aim of this paper is to present the missing facts, to
propose the methodology to be applied and show and analyze results obtained on excavator down time analysis
and risk management. This research analyzed the structure of downtime and consequences in excavator work in
six large Serbian companies during a period of one year. Delays in the observed transport and mining machines
were classified according to the type of downtime: technological downtime, power / electricity downtime,
mechanical downtime, misuse due to abuse, organizational downtime and downtime due to external influences.
In this research, the frequencies of downtime were monitored by the stated categories of downtime. The
consequences of the identified delays were then assessed, and the risk calculated.
PB  - Zrenjanin : Technical faculty “Mihajlo Pupin”
C3  - 12th International Symposium Engineering Management and Competitiveness 2022 (EMC 2022)
T1  - Risk Management and Excavator Downtime Analysis
SP  - 98
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4181
ER  - 

@conference{
author = "Spasojević Brkić, Vesna and Misita, Mirjana and Brkić, Aleksandar and Veljković, Zorica and Perišić, Martina and Papić, Neda and Janev, Nemanja",
year = "2022",
abstract = "Nowadays, safety and sustainable business success cannot be viewed in isolation. Risk assessment is a
prerequisite for adequate planning of prevention of destruction of critical potentials, as well as preparation of a
strategy for response to failure in the context of prevention of consequences. An important part of all
construction equipment maintenance is proper record keeping, but it is not done often in practice although it is a
prerequisite of proper risk management. Proper maintenance of excavators maximizes fuel efficiency and
reduces operating costs as well as equipment failure. The aim of this paper is to present the missing facts, to
propose the methodology to be applied and show and analyze results obtained on excavator down time analysis
and risk management. This research analyzed the structure of downtime and consequences in excavator work in
six large Serbian companies during a period of one year. Delays in the observed transport and mining machines
were classified according to the type of downtime: technological downtime, power / electricity downtime,
mechanical downtime, misuse due to abuse, organizational downtime and downtime due to external influences.
In this research, the frequencies of downtime were monitored by the stated categories of downtime. The
consequences of the identified delays were then assessed, and the risk calculated.",
publisher = "Zrenjanin : Technical faculty “Mihajlo Pupin”",
journal = "12th International Symposium Engineering Management and Competitiveness 2022 (EMC 2022)",
title = "Risk Management and Excavator Downtime Analysis",
pages = "98",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4181"
}

Spasojević Brkić, V., Misita, M., Brkić, A., Veljković, Z., Perišić, M., Papić, N.,& Janev, N.. (2022). Risk Management and Excavator Downtime Analysis. in 12th International Symposium Engineering Management and Competitiveness 2022 (EMC 2022)
Zrenjanin : Technical faculty “Mihajlo Pupin”., 98.
https://hdl.handle.net/21.15107/rcub_machinery_4181

Spasojević Brkić V, Misita M, Brkić A, Veljković Z, Perišić M, Papić N, Janev N. Risk Management and Excavator Downtime Analysis. in 12th International Symposium Engineering Management and Competitiveness 2022 (EMC 2022). 2022;:98.
https://hdl.handle.net/21.15107/rcub_machinery_4181 .

Spasojević Brkić, Vesna, Misita, Mirjana, Brkić, Aleksandar, Veljković, Zorica, Perišić, Martina, Papić, Neda, Janev, Nemanja, "Risk Management and Excavator Downtime Analysis" in 12th International Symposium Engineering Management and Competitiveness 2022 (EMC 2022) (2022):98,
https://hdl.handle.net/21.15107/rcub_machinery_4181 .

TY  - CONF
AU  - Misita, Mirjana
AU  - Spasojević Brkić, Vesna
AU  - Perišić, Martina
AU  - Brkić, Aleksandar
AU  - Papić, Neda
AU  - Damjanović, Milanko
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4127
AB  - The study recorded data on delays in hydraulic excavators over a period of one year. The observed delays were classified into groups according to the type of cause and the degree of danger was assessed by experts in relation to
the safety of the operator, the environment, the failure of the observed  machine and financial losses. The Fuzzy FMEA method was applied to prioritize the identified causes of downtime, i.e. risk selection. The result of the research indicates the advantages of incorporating the knowledge and experience of decision makers in the evaluation of FMEA parameters, Severity (S), Occurrence (O), Detection (D) through a semiquantitative approach based on combination of real performance and downtime indicators and linguistic statements for FMEA parameters.
PB  - Čačak : DQM Research Center
C3  - 12th International Conference Life Cycle Engineering and Management ICDQM-2021 : Proceedings, june 24-25, 2021, Prijevor, Serbia
T1  - Research on risk prioritization at hydraulic excavator using fuzzy FMEA method
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4127
ER  - 

@conference{
author = "Misita, Mirjana and Spasojević Brkić, Vesna and Perišić, Martina and Brkić, Aleksandar and Papić, Neda and Damjanović, Milanko",
year = "2021",
abstract = "The study recorded data on delays in hydraulic excavators over a period of one year. The observed delays were classified into groups according to the type of cause and the degree of danger was assessed by experts in relation to
the safety of the operator, the environment, the failure of the observed  machine and financial losses. The Fuzzy FMEA method was applied to prioritize the identified causes of downtime, i.e. risk selection. The result of the research indicates the advantages of incorporating the knowledge and experience of decision makers in the evaluation of FMEA parameters, Severity (S), Occurrence (O), Detection (D) through a semiquantitative approach based on combination of real performance and downtime indicators and linguistic statements for FMEA parameters.",
publisher = "Čačak : DQM Research Center",
journal = "12th International Conference Life Cycle Engineering and Management ICDQM-2021 : Proceedings, june 24-25, 2021, Prijevor, Serbia",
title = "Research on risk prioritization at hydraulic excavator using fuzzy FMEA method",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4127"
}

Misita, M., Spasojević Brkić, V., Perišić, M., Brkić, A., Papić, N.,& Damjanović, M.. (2021). Research on risk prioritization at hydraulic excavator using fuzzy FMEA method. in 12th International Conference Life Cycle Engineering and Management ICDQM-2021 : Proceedings, june 24-25, 2021, Prijevor, Serbia
Čačak : DQM Research Center..
https://hdl.handle.net/21.15107/rcub_machinery_4127

Misita M, Spasojević Brkić V, Perišić M, Brkić A, Papić N, Damjanović M. Research on risk prioritization at hydraulic excavator using fuzzy FMEA method. in 12th International Conference Life Cycle Engineering and Management ICDQM-2021 : Proceedings, june 24-25, 2021, Prijevor, Serbia. 2021;.
https://hdl.handle.net/21.15107/rcub_machinery_4127 .

Misita, Mirjana, Spasojević Brkić, Vesna, Perišić, Martina, Brkić, Aleksandar, Papić, Neda, Damjanović, Milanko, "Research on risk prioritization at hydraulic excavator using fuzzy FMEA method" in 12th International Conference Life Cycle Engineering and Management ICDQM-2021 : Proceedings, june 24-25, 2021, Prijevor, Serbia (2021),
https://hdl.handle.net/21.15107/rcub_machinery_4127 .

TY  - CHAP
AU  - Brkić, Aleksandar
AU  - Spasojević Brkić, Vesna
AU  - Veljković, Zorica
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4060
AB  - Today’s globalization trends, internationalization and fast technological changes point out that all companies which want to act in sustainable way have to adapt to participate on the global, international market. Scholars have carried out numerous studies on the perception of barriers to exporting, and, although it is well known that exporting prevents SMEs failure, till now little consensus exists on the topic. Metal industry products are important sector of each economy. However, Serbia and Bosnia and Herzegovina have small shares in export to the EU. As a response to this need, the aim of this paper is to survey the formal requirements and barriers to export products of metal industry in Serbia and Bosnia and Herzegovina to the EU market and to compare the practices and results in both countries’ metal sector companies. A total of 116 companies have participated in survey. Collected data are undergone to different statistical tests. In accordance with survey results, recommendations are given to Serbian and BIH companies, how to overcome barriers and expand to the EU market. The findings from this study have important implications for both Serbian and BIH entrepreneurs and policy makers. Our results may help managers and entrepreneurs to assess more accurately their chance of success in international markets before they decide to go abroad. Also, policy makers should not only devote resources to the creation of new exporters but also need to care about the survival of new exporters especially in their starting period in order to sustain export growth.
PB  - University of Belgrade, Technical Faculty in Bor, EngineeringManagement Department (EMD)
T2  - University of Belgrade, Technical Faculty in Bor, EngineeringManagement Department (EMD)
T1  - How to overcome exporting barriers and prevent SMEs failure: Serbian and BIH perspective
SP  - 97-130
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4060
ER  - 

@inbook{
author = "Brkić, Aleksandar and Spasojević Brkić, Vesna and Veljković, Zorica",
year = "2019",
abstract = "Today’s globalization trends, internationalization and fast technological changes point out that all companies which want to act in sustainable way have to adapt to participate on the global, international market. Scholars have carried out numerous studies on the perception of barriers to exporting, and, although it is well known that exporting prevents SMEs failure, till now little consensus exists on the topic. Metal industry products are important sector of each economy. However, Serbia and Bosnia and Herzegovina have small shares in export to the EU. As a response to this need, the aim of this paper is to survey the formal requirements and barriers to export products of metal industry in Serbia and Bosnia and Herzegovina to the EU market and to compare the practices and results in both countries’ metal sector companies. A total of 116 companies have participated in survey. Collected data are undergone to different statistical tests. In accordance with survey results, recommendations are given to Serbian and BIH companies, how to overcome barriers and expand to the EU market. The findings from this study have important implications for both Serbian and BIH entrepreneurs and policy makers. Our results may help managers and entrepreneurs to assess more accurately their chance of success in international markets before they decide to go abroad. Also, policy makers should not only devote resources to the creation of new exporters but also need to care about the survival of new exporters especially in their starting period in order to sustain export growth.",
publisher = "University of Belgrade, Technical Faculty in Bor, EngineeringManagement Department (EMD)",
journal = "University of Belgrade, Technical Faculty in Bor, EngineeringManagement Department (EMD)",
booktitle = "How to overcome exporting barriers and prevent SMEs failure: Serbian and BIH perspective",
pages = "97-130",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4060"
}

Brkić, A., Spasojević Brkić, V.,& Veljković, Z.. (2019). How to overcome exporting barriers and prevent SMEs failure: Serbian and BIH perspective. in University of Belgrade, Technical Faculty in Bor, EngineeringManagement Department (EMD)
University of Belgrade, Technical Faculty in Bor, EngineeringManagement Department (EMD)., 97-130.
https://hdl.handle.net/21.15107/rcub_machinery_4060

Brkić A, Spasojević Brkić V, Veljković Z. How to overcome exporting barriers and prevent SMEs failure: Serbian and BIH perspective. in University of Belgrade, Technical Faculty in Bor, EngineeringManagement Department (EMD). 2019;:97-130.
https://hdl.handle.net/21.15107/rcub_machinery_4060 .

Brkić, Aleksandar, Spasojević Brkić, Vesna, Veljković, Zorica, "How to overcome exporting barriers and prevent SMEs failure: Serbian and BIH perspective" in University of Belgrade, Technical Faculty in Bor, EngineeringManagement Department (EMD) (2019):97-130,
https://hdl.handle.net/21.15107/rcub_machinery_4060 .