The International Journal of Management Science and Business Administration, 2015
Earlier publications have shown that the number of references as well as the number of received c... more Earlier publications have shown that the number of references as well as the number of received citations are field-dependent. Consequently, a long reference list may lead to more citations. The purpose of this article is to study the concrete relationship between number of references and citation counts. This article tries to find an answer for the concrete case of Malaysian highly cited papers and Malaysian review papers. Malaysian paper is a paper with at least one Malaysian affilation. A total of 2466 papers consisting of two sets, namely 1966 review papers and 500 highly-cited articles, are studied. The statistical analysis shows that an increase in the number of references leads to a slight increase in the number of citations. Yet, this increase is not statistically significant. Therefore, a researcher should not try to increase the number of received citations by artificially increasing the number of references.
International Journal of Precision Engineering and Manufacturing, 2015
This paper presents significant empirical evidence on the relationship between Advanced Manufactu... more This paper presents significant empirical evidence on the relationship between Advanced Manufacturing Technology (AMT) practices and sustainable environmental initiatives with the manufacturing capabilities of automotive SMEs in Malaysia. A cross-sectional survey is adopted in this study, which involves 83 Malaysian automotive SMEs. Two hypotheses are proposed in this study, i.e. Hypothesis 1: There are positive effects of AMT practices on the manufacturing capabilities of SMEs and Hypothesis 2: There are positive effects of sustainable environmental initiatives on the manufacturing capabilities of SMEs. The results obtained from the pairwise correlation analysis indicate that both AMT practices and sustainable environmental initiatives have positive effects on manufacturing capabilities, which support both hypotheses. In addition, it is found that 50% of the SMEs implement AMT for flexibility and cost reduction in the past five years. It is also found that more than 80% sustainable practices are adopted in most of the SMEs with the exception of Life Cycle Assessment. Based on the findings, there is a need to move forward into the hybrid approach, which will consider both AMT practices and environmental initiatives to ensure that SMEs remain competitive and become the world player in the automotive industry.
Journal of Industrial Engineering International, 2014
In today's highly rival market, an effective supplier selection process is vital to the success o... more In today's highly rival market, an effective supplier selection process is vital to the success of any manufacturing system. Selecting the appropriate supplier is always a difficult task because suppliers posses varied strengths and weaknesses that necessitate careful evaluations prior to suppliers' ranking. This is a complex process with many subjective and objective factors to consider before the benefits of supplier selection are achieved. This paper identifies six extremely critical criteria and thirteen sub-criteria based on the literature. A new methodology employing those criteria and sub-criteria is proposed for the assessment and ranking of a given set of suppliers. To handle the subjectivity of the decision maker's assessment, an integration of fuzzy Delphi with fuzzy inference system has been applied and a new ranking method is proposed for supplier selection problem. This supplier selection model enables decision makers to rank the suppliers based on three classifications including ''extremely preferred'', ''moderately preferred'', and ''weakly preferred''. In addition, in each classification, suppliers are put in order from highest final score to the lowest. Finally, the methodology is verified and validated through an example of a numerical test bed.
With the emerge of new technologies many systems are presented to a wider range of users at reaso... more With the emerge of new technologies many systems are presented to a wider range of users at reasonable costs. Virtual Reality (VR) technology has also entered many new economical areas such as tourism, business, online games, and also cultural heritage. The new advancement in VR and its availability to the end user in many forms necessitates considering the health issues because cybersickness is one of the drawbacks of Virtual Environments (VE). In addition, usability of the VE and the provided VR technology and system is of paramount importance in the market to attract the user. However, usability measurement of the VE also has become a difficult issue due to the vast range of products and users. A review on the cybersickness and usability issues in VE is prepared and presented in this paper.
Proceedings of the 2014 International Conference on Computer, Communications and Information Technology, 2014
Automotive industry uses virtual reality (VR) and three-dimensional (3D) modelling at different s... more Automotive industry uses virtual reality (VR) and three-dimensional (3D) modelling at different stages like many other industries in the world. To choose the right technology for the right purpose, it is crucial to identify the existing technology used, their benefits as well as barriers. Six automotive manufacturing companies in Malaysia were selected as case studies for this work. Investigation was performed on3D and VR technologies used. A total number of 240 questionnaires were distributed between selected automotive industry and 153 people responded to the questionnaires. Frequency analysis was conducted followed by t-test on the respondents' answers. Based on the questionnaires, this research identified and analyzed the opportunities of 3D and VR in the industry and their constraints. The results showed that 70.6% of the respondents used 3D modeling and 38% of respondents used VR in their organization at present. It was also found that 'reducing rework' and 'improving quality of manufacturing' are the two most common advantages of using VR technology. 'Lack of knowledge', 'lack of trained people' and 'time to get proficient' are three major barriers for adopting with new technology such as VR. It is concluded that the benefits of using 3D modelling and VR outperformed the existing barriers.
This paper discusses the application of haptic feedback in Virtual Reality to enhance user perfor... more This paper discusses the application of haptic feedback in Virtual Reality to enhance user performance in manufacturing industry. Haptic interfaces have the potential to enhance communication and interaction via the computer enabling affective expressive interpersonal communication and enriching interaction by haptic feedback. The aim of this study was to investigate and develop a better understanding of using haptic feedback in manufacturing. Keywords: Virtual Reality, haptic, manufacturing doi: 10.3329/jme.v40i1.3476 Journal of Mechanical Engineering, Vol. ME40, No. 1, June 2009 68-71
1Abstract. Automotive industry uses virtual reality (VR) at different stages like many other indu... more 1Abstract. Automotive industry uses virtual reality (VR) at different stages like many other industries in the world. Malaysian automotive industry also is not an exception from this matter. In this study, six automotive companies in Malaysia were selected as case studies ...
Virtual reality and three-dimensional modelling technologies are mainly used in industry in many ... more Virtual reality and three-dimensional modelling technologies are mainly used in industry in many aspects. The automotive industry is considered as the initial group that uses virtual reality technologies. However, without adopting advanced technology, the automotive ...
International Journal of Simulation Modelling, 2015
Robots play an important role in performing operations such as welding, drilling and screwing par... more Robots play an important role in performing operations such as welding, drilling and screwing parts in manufacturing. Optimizing the robot arm movement time between different points is an important task which will minimize the make-span and maximize the production rate. But robot programming is a complex task whereby the user needs to teach and control the robot in order to perform a desired action. In order to address the above problem, an integrated 3-dimensional (3D) simulation software and virtual reality (VR) system is developed to simplify and speed up tasks and therefore enhance the quality of manufacturing processes. This system has the capability to communicate, transfer, optimize and test the data obtained from the VR and 3D environment to the real robot in a fast and efficient manner. In addition, this system eliminates the need for robot programming, and thus it is easily implemented by users with limited engineering knowledge. The optimization model is tested on a test case, in which the data are extracted from the VR system. The results show an increase in production rate and a decrease in cycle time when the make-span is minimized. The virtual reality robotic teaching system (VRRTS) offers several benefits to users, and will therefore surpass complex and time-intensive conventional robot programming methods.
This paper presents significant empirical evidence on the relationship between Advanced Manufactu... more This paper presents significant empirical evidence on the relationship between Advanced Manufacturing Technology (AMT) practices and sustainable environmental initiatives with the manufacturing capabilities of automotive SMEs in Malaysia. A cross-sectional survey is adopted in this study, which involves 83 Malaysian automotive SMEs. Two hypotheses are proposed in this study, i.e. Hypothesis 1: There are positive effects of AMT practices on the manufacturing capabilities of SMEs and Hypothesis 2: There are positive effects of sustainable environmental initiatives on the manufacturing capabilities of SMEs. The results obtained from the pairwise correlation analysis indicate that both AMT practices and sustainable environmental initiatives have positive effects on manufacturing capabilities, which support both hypotheses. In addition, it is found that 50% of the SMEs implement AMT for flexibility and cost reduction in the past five years. It is also found that more than 80% sustainable practices are adopted in most of the SMEs with the exception of Life Cycle Assessment. Based on the findings, there is a need to move forward into the hybrid approach, which will consider both AMT practices and environmental initiatives to ensure that SMEs remain competitive and become the world player in the automotive industry.
Virtual reality and three-dimensional modelling technologies are mainly used in industry in many ... more Virtual reality and three-dimensional modelling technologies are mainly used in industry in many aspects. The automotive industry is considered as the initial group that uses virtual reality technologies. However, without adopting advanced technology, the automotive industry cannot compete with its global competition. In this study, six automotive companies in Malaysia were selected as case study to verify the virtual reality adoption capability. A total number of 240 questionnaires were distributed among the six car companies in Malaysia and 153 people responded to the questionnaires. For analysing, Pearson chi-square test was conducted followed by frequency analysis on the respondents' answers. The analysis showed that 54% of industry respondents have stated that existing technology is not enough while 83.7% of them showed tendency towards adoption and improvement with new technology in which virtual reality was found as the best option that can be adopted to different sections of automotive manufacturing industry. The results also revealed that manufacturing, designing, 'planning and research' and engineering departments are the appropriate areas for implementing virtual reality technology.
Earlier publications have shown that the number of references as well as the number of received c... more Earlier publications have shown that the number of references as well as the number of received citations are field-dependent. Consequently, a long reference list may lead to more citations. The purpose of this article is to study the concrete relationship between number of references and citation counts. This article tries to find an answer for the concrete case of Malaysian highly cited papers and Malaysian review papers. Malaysian paper is a paper with at least one Malaysian affilation. A total of 2466 papers consisting of two sets, namely 1966 review papers and 500 highly-cited articles, are studied. The statistical analysis shows that an increase in the number of references leads to a slight increase in the number of citations. Yet, this increase is not statistically significant. Therefore, a researcher should not try to increase the number of received citations by artificially increasing the number of references.
This paper discusses the application of haptic feedback in Virtual Reality to enhance user perfor... more This paper discusses the application of haptic feedback in Virtual Reality to enhance user performance in manufacturing industry. Haptic interfaces have the potential to enhance communication and interaction via the computer enabling affective expressive interpersonal communication and enriching interaction by haptic feedback. The aim of this study was to investigate and develop a better understanding of using haptic feedback in manufacturing.
Virtual reality (VR) provides a new opportunity to improve productivity and enhance quality of ma... more Virtual reality (VR) provides a new opportunity to improve productivity and enhance quality of manufacturing. Malaysian automotive industry also adopted VR and three-dimensional (3D) modelling at different stages. It is always difficult to choose the right technology at the right time and at the right place. There is no clear guideline among automotive companies about technological causes behind their success and failure. Most of the time, automotive industry is confused to decide which technology is most appropriate for their technology-based industrialisation and improvement. Six car companies in Malaysia have been chosen for this study. Forty questionnaires were randomly distributed at each company. More than 62% of the questionnaires received from the respondents. To analyse respondents' answers, t-Test and Pearson chi-square test were conducted followed by frequency analysis and a conceptual method has also been used for developing a framework. This research provides a framework for automotive industry adoption with VR technology. This framework recommends the VR technology adoption to the industry based on its remarkable points in each segments of the industry. The framework will help policy makers, managers, designers, engineers, and researchers to make their decision more easily and efficiently for VR technology implementation. Results of framework implementation have also been described in the results section of the paper.
Robots play an important role in performing operations such as welding, drilling and screwing par... more Robots play an important role in performing operations such as welding, drilling and screwing parts in manufacturing. Optimizing the robot arm movement time between different points is an important task which will minimize the make-span and maximize the production rate. But robot programming is a complex task whereby the user needs to teach and control the robot in order to perform a desired action. In order to address the above problem, an integrated 3-dimensional (3D) simulation software and virtual reality (VR) system is developed to simplify and speed up tasks and therefore enhance the quality of manufacturing processes. This system has the capability to communicate, transfer, optimize and test the data obtained from the VR and 3D environment to the real robot in a fast and efficient manner. In addition, this system eliminates the need for robot programming, and thus it is easily implemented by users with limited engineering knowledge. The optimization model is tested on a test case, in which the data are extracted from the VR system. The results show an increase in production rate and a decrease in cycle time when the make-span is minimized. The virtual reality robotic teaching system (VRRTS) offers several benefits to users, and will therefore surpass complex and time-intensive conventional robot programming methods.
In today's highly rival market, an effective supplier selection process is vital to the success o... more In today's highly rival market, an effective supplier selection process is vital to the success of any manufacturing system. Selecting the appropriate supplier is always a difficult task because suppliers posses varied strengths and weaknesses that necessitate careful evaluations prior to suppliers' ranking. This is a complex process with many subjective and objective factors to consider before the benefits of supplier selection are achieved. This paper identifies six extremely critical criteria and thirteen sub-criteria based on the literature. A new methodology employing those criteria and sub-criteria is proposed for the assessment and ranking of a given set of suppliers. To handle the subjectivity of the decision maker's assessment, an integration of fuzzy Delphi with fuzzy inference system has been applied and a new ranking method is proposed for supplier selection problem. This supplier selection model enables decision makers to rank the suppliers based on three classifications including ''extremely preferred'', ''moder-ately preferred'', and ''weakly preferred''. In addition, in each classification, suppliers are put in order from highest final score to the lowest. Finally, the methodology is verified and validated through an example of a numerical test bed.
With the emerge of new technologies many systems are presented to a wider range of users at reaso... more With the emerge of new technologies many systems are presented to a wider range of users at reasonable costs. Virtual Reality (VR) technology has also entered many new economical areas such as tourism, business, online games, and also cultural heritage. The new advancement in VR and its availability to the end user in many forms necessitates considering the health issues because cybersickness is one of the drawbacks of Virtual Environments (VE). In addition, usability of the VE and the provided VR technology and system is of paramount importance in the market to attract the user. However, usability measurement of the VE also has become a difficult issue due to the vast range of products and users. A review on the cybersickness and usability issues in VE is prepared and presented in this paper.
Automotive industry uses virtual reality (VR) and three-dimensional (3D) modelling at different s... more Automotive industry uses virtual reality (VR) and three-dimensional (3D) modelling at different stages like many other industries in the world. To choose the right technology for the right purpose, it is crucial to identify the existing technology used, their benefits as well as barriers. Six automotive manufacturing companies in Malaysia were selected as case studies for this work. Investigation was performed on3D and VR technologies used. A total number of 240 questionnaires were distributed between selected automotive industry and 153 people responded to the questionnaires. Frequency analysis was conducted followed by t-test on the respondents' answers. Based on the questionnaires, this research identified and analyzed the opportunities of 3D and VR in the industry and their constraints. The results showed that 70.6% of the respondents used 3D modeling and 38% of respondents used VR in their organization at present. It was also found that 'reducing rework' and 'improving quality of manufacturing' are the two most common advantages of using VR technology. 'Lack of knowledge', 'lack of trained people' and 'time to get proficient' are three major barriers for adopting with new technology such as VR. It is concluded that the benefits of using 3D modelling and VR outperformed the existing barriers.
Automotive industry uses virtual reality (VR) at different stages like many other industries in t... more Automotive industry uses virtual reality (VR) at different stages like many other industries in the world. Malaysian automotive industry also is not an exception from this matter. In this study, six automotive companies in Malaysia were selected as case studies to find appropriate departments in implementing VR in Malaysian automotive manufacturing industry. A total of 240 questionnaires were distributed among the six car companies in Malaysia and 153 responded to the questionnaires. For analysing, Pearson chi-square test was conducted followed by frequency analysis on the respondents' answer. The results revealed that manufacturing, designing, 'planning and research' and engineering departments are the appropriate areas for implementing VR technology.
The International Journal of Management Science and Business Administration, 2015
Earlier publications have shown that the number of references as well as the number of received c... more Earlier publications have shown that the number of references as well as the number of received citations are field-dependent. Consequently, a long reference list may lead to more citations. The purpose of this article is to study the concrete relationship between number of references and citation counts. This article tries to find an answer for the concrete case of Malaysian highly cited papers and Malaysian review papers. Malaysian paper is a paper with at least one Malaysian affilation. A total of 2466 papers consisting of two sets, namely 1966 review papers and 500 highly-cited articles, are studied. The statistical analysis shows that an increase in the number of references leads to a slight increase in the number of citations. Yet, this increase is not statistically significant. Therefore, a researcher should not try to increase the number of received citations by artificially increasing the number of references.
International Journal of Precision Engineering and Manufacturing, 2015
This paper presents significant empirical evidence on the relationship between Advanced Manufactu... more This paper presents significant empirical evidence on the relationship between Advanced Manufacturing Technology (AMT) practices and sustainable environmental initiatives with the manufacturing capabilities of automotive SMEs in Malaysia. A cross-sectional survey is adopted in this study, which involves 83 Malaysian automotive SMEs. Two hypotheses are proposed in this study, i.e. Hypothesis 1: There are positive effects of AMT practices on the manufacturing capabilities of SMEs and Hypothesis 2: There are positive effects of sustainable environmental initiatives on the manufacturing capabilities of SMEs. The results obtained from the pairwise correlation analysis indicate that both AMT practices and sustainable environmental initiatives have positive effects on manufacturing capabilities, which support both hypotheses. In addition, it is found that 50% of the SMEs implement AMT for flexibility and cost reduction in the past five years. It is also found that more than 80% sustainable practices are adopted in most of the SMEs with the exception of Life Cycle Assessment. Based on the findings, there is a need to move forward into the hybrid approach, which will consider both AMT practices and environmental initiatives to ensure that SMEs remain competitive and become the world player in the automotive industry.
Journal of Industrial Engineering International, 2014
In today's highly rival market, an effective supplier selection process is vital to the success o... more In today's highly rival market, an effective supplier selection process is vital to the success of any manufacturing system. Selecting the appropriate supplier is always a difficult task because suppliers posses varied strengths and weaknesses that necessitate careful evaluations prior to suppliers' ranking. This is a complex process with many subjective and objective factors to consider before the benefits of supplier selection are achieved. This paper identifies six extremely critical criteria and thirteen sub-criteria based on the literature. A new methodology employing those criteria and sub-criteria is proposed for the assessment and ranking of a given set of suppliers. To handle the subjectivity of the decision maker's assessment, an integration of fuzzy Delphi with fuzzy inference system has been applied and a new ranking method is proposed for supplier selection problem. This supplier selection model enables decision makers to rank the suppliers based on three classifications including ''extremely preferred'', ''moderately preferred'', and ''weakly preferred''. In addition, in each classification, suppliers are put in order from highest final score to the lowest. Finally, the methodology is verified and validated through an example of a numerical test bed.
With the emerge of new technologies many systems are presented to a wider range of users at reaso... more With the emerge of new technologies many systems are presented to a wider range of users at reasonable costs. Virtual Reality (VR) technology has also entered many new economical areas such as tourism, business, online games, and also cultural heritage. The new advancement in VR and its availability to the end user in many forms necessitates considering the health issues because cybersickness is one of the drawbacks of Virtual Environments (VE). In addition, usability of the VE and the provided VR technology and system is of paramount importance in the market to attract the user. However, usability measurement of the VE also has become a difficult issue due to the vast range of products and users. A review on the cybersickness and usability issues in VE is prepared and presented in this paper.
Proceedings of the 2014 International Conference on Computer, Communications and Information Technology, 2014
Automotive industry uses virtual reality (VR) and three-dimensional (3D) modelling at different s... more Automotive industry uses virtual reality (VR) and three-dimensional (3D) modelling at different stages like many other industries in the world. To choose the right technology for the right purpose, it is crucial to identify the existing technology used, their benefits as well as barriers. Six automotive manufacturing companies in Malaysia were selected as case studies for this work. Investigation was performed on3D and VR technologies used. A total number of 240 questionnaires were distributed between selected automotive industry and 153 people responded to the questionnaires. Frequency analysis was conducted followed by t-test on the respondents' answers. Based on the questionnaires, this research identified and analyzed the opportunities of 3D and VR in the industry and their constraints. The results showed that 70.6% of the respondents used 3D modeling and 38% of respondents used VR in their organization at present. It was also found that 'reducing rework' and 'improving quality of manufacturing' are the two most common advantages of using VR technology. 'Lack of knowledge', 'lack of trained people' and 'time to get proficient' are three major barriers for adopting with new technology such as VR. It is concluded that the benefits of using 3D modelling and VR outperformed the existing barriers.
This paper discusses the application of haptic feedback in Virtual Reality to enhance user perfor... more This paper discusses the application of haptic feedback in Virtual Reality to enhance user performance in manufacturing industry. Haptic interfaces have the potential to enhance communication and interaction via the computer enabling affective expressive interpersonal communication and enriching interaction by haptic feedback. The aim of this study was to investigate and develop a better understanding of using haptic feedback in manufacturing. Keywords: Virtual Reality, haptic, manufacturing doi: 10.3329/jme.v40i1.3476 Journal of Mechanical Engineering, Vol. ME40, No. 1, June 2009 68-71
1Abstract. Automotive industry uses virtual reality (VR) at different stages like many other indu... more 1Abstract. Automotive industry uses virtual reality (VR) at different stages like many other industries in the world. Malaysian automotive industry also is not an exception from this matter. In this study, six automotive companies in Malaysia were selected as case studies ...
Virtual reality and three-dimensional modelling technologies are mainly used in industry in many ... more Virtual reality and three-dimensional modelling technologies are mainly used in industry in many aspects. The automotive industry is considered as the initial group that uses virtual reality technologies. However, without adopting advanced technology, the automotive ...
International Journal of Simulation Modelling, 2015
Robots play an important role in performing operations such as welding, drilling and screwing par... more Robots play an important role in performing operations such as welding, drilling and screwing parts in manufacturing. Optimizing the robot arm movement time between different points is an important task which will minimize the make-span and maximize the production rate. But robot programming is a complex task whereby the user needs to teach and control the robot in order to perform a desired action. In order to address the above problem, an integrated 3-dimensional (3D) simulation software and virtual reality (VR) system is developed to simplify and speed up tasks and therefore enhance the quality of manufacturing processes. This system has the capability to communicate, transfer, optimize and test the data obtained from the VR and 3D environment to the real robot in a fast and efficient manner. In addition, this system eliminates the need for robot programming, and thus it is easily implemented by users with limited engineering knowledge. The optimization model is tested on a test case, in which the data are extracted from the VR system. The results show an increase in production rate and a decrease in cycle time when the make-span is minimized. The virtual reality robotic teaching system (VRRTS) offers several benefits to users, and will therefore surpass complex and time-intensive conventional robot programming methods.
This paper presents significant empirical evidence on the relationship between Advanced Manufactu... more This paper presents significant empirical evidence on the relationship between Advanced Manufacturing Technology (AMT) practices and sustainable environmental initiatives with the manufacturing capabilities of automotive SMEs in Malaysia. A cross-sectional survey is adopted in this study, which involves 83 Malaysian automotive SMEs. Two hypotheses are proposed in this study, i.e. Hypothesis 1: There are positive effects of AMT practices on the manufacturing capabilities of SMEs and Hypothesis 2: There are positive effects of sustainable environmental initiatives on the manufacturing capabilities of SMEs. The results obtained from the pairwise correlation analysis indicate that both AMT practices and sustainable environmental initiatives have positive effects on manufacturing capabilities, which support both hypotheses. In addition, it is found that 50% of the SMEs implement AMT for flexibility and cost reduction in the past five years. It is also found that more than 80% sustainable practices are adopted in most of the SMEs with the exception of Life Cycle Assessment. Based on the findings, there is a need to move forward into the hybrid approach, which will consider both AMT practices and environmental initiatives to ensure that SMEs remain competitive and become the world player in the automotive industry.
Virtual reality and three-dimensional modelling technologies are mainly used in industry in many ... more Virtual reality and three-dimensional modelling technologies are mainly used in industry in many aspects. The automotive industry is considered as the initial group that uses virtual reality technologies. However, without adopting advanced technology, the automotive industry cannot compete with its global competition. In this study, six automotive companies in Malaysia were selected as case study to verify the virtual reality adoption capability. A total number of 240 questionnaires were distributed among the six car companies in Malaysia and 153 people responded to the questionnaires. For analysing, Pearson chi-square test was conducted followed by frequency analysis on the respondents' answers. The analysis showed that 54% of industry respondents have stated that existing technology is not enough while 83.7% of them showed tendency towards adoption and improvement with new technology in which virtual reality was found as the best option that can be adopted to different sections of automotive manufacturing industry. The results also revealed that manufacturing, designing, 'planning and research' and engineering departments are the appropriate areas for implementing virtual reality technology.
Earlier publications have shown that the number of references as well as the number of received c... more Earlier publications have shown that the number of references as well as the number of received citations are field-dependent. Consequently, a long reference list may lead to more citations. The purpose of this article is to study the concrete relationship between number of references and citation counts. This article tries to find an answer for the concrete case of Malaysian highly cited papers and Malaysian review papers. Malaysian paper is a paper with at least one Malaysian affilation. A total of 2466 papers consisting of two sets, namely 1966 review papers and 500 highly-cited articles, are studied. The statistical analysis shows that an increase in the number of references leads to a slight increase in the number of citations. Yet, this increase is not statistically significant. Therefore, a researcher should not try to increase the number of received citations by artificially increasing the number of references.
This paper discusses the application of haptic feedback in Virtual Reality to enhance user perfor... more This paper discusses the application of haptic feedback in Virtual Reality to enhance user performance in manufacturing industry. Haptic interfaces have the potential to enhance communication and interaction via the computer enabling affective expressive interpersonal communication and enriching interaction by haptic feedback. The aim of this study was to investigate and develop a better understanding of using haptic feedback in manufacturing.
Virtual reality (VR) provides a new opportunity to improve productivity and enhance quality of ma... more Virtual reality (VR) provides a new opportunity to improve productivity and enhance quality of manufacturing. Malaysian automotive industry also adopted VR and three-dimensional (3D) modelling at different stages. It is always difficult to choose the right technology at the right time and at the right place. There is no clear guideline among automotive companies about technological causes behind their success and failure. Most of the time, automotive industry is confused to decide which technology is most appropriate for their technology-based industrialisation and improvement. Six car companies in Malaysia have been chosen for this study. Forty questionnaires were randomly distributed at each company. More than 62% of the questionnaires received from the respondents. To analyse respondents' answers, t-Test and Pearson chi-square test were conducted followed by frequency analysis and a conceptual method has also been used for developing a framework. This research provides a framework for automotive industry adoption with VR technology. This framework recommends the VR technology adoption to the industry based on its remarkable points in each segments of the industry. The framework will help policy makers, managers, designers, engineers, and researchers to make their decision more easily and efficiently for VR technology implementation. Results of framework implementation have also been described in the results section of the paper.
Robots play an important role in performing operations such as welding, drilling and screwing par... more Robots play an important role in performing operations such as welding, drilling and screwing parts in manufacturing. Optimizing the robot arm movement time between different points is an important task which will minimize the make-span and maximize the production rate. But robot programming is a complex task whereby the user needs to teach and control the robot in order to perform a desired action. In order to address the above problem, an integrated 3-dimensional (3D) simulation software and virtual reality (VR) system is developed to simplify and speed up tasks and therefore enhance the quality of manufacturing processes. This system has the capability to communicate, transfer, optimize and test the data obtained from the VR and 3D environment to the real robot in a fast and efficient manner. In addition, this system eliminates the need for robot programming, and thus it is easily implemented by users with limited engineering knowledge. The optimization model is tested on a test case, in which the data are extracted from the VR system. The results show an increase in production rate and a decrease in cycle time when the make-span is minimized. The virtual reality robotic teaching system (VRRTS) offers several benefits to users, and will therefore surpass complex and time-intensive conventional robot programming methods.
In today's highly rival market, an effective supplier selection process is vital to the success o... more In today's highly rival market, an effective supplier selection process is vital to the success of any manufacturing system. Selecting the appropriate supplier is always a difficult task because suppliers posses varied strengths and weaknesses that necessitate careful evaluations prior to suppliers' ranking. This is a complex process with many subjective and objective factors to consider before the benefits of supplier selection are achieved. This paper identifies six extremely critical criteria and thirteen sub-criteria based on the literature. A new methodology employing those criteria and sub-criteria is proposed for the assessment and ranking of a given set of suppliers. To handle the subjectivity of the decision maker's assessment, an integration of fuzzy Delphi with fuzzy inference system has been applied and a new ranking method is proposed for supplier selection problem. This supplier selection model enables decision makers to rank the suppliers based on three classifications including ''extremely preferred'', ''moder-ately preferred'', and ''weakly preferred''. In addition, in each classification, suppliers are put in order from highest final score to the lowest. Finally, the methodology is verified and validated through an example of a numerical test bed.
With the emerge of new technologies many systems are presented to a wider range of users at reaso... more With the emerge of new technologies many systems are presented to a wider range of users at reasonable costs. Virtual Reality (VR) technology has also entered many new economical areas such as tourism, business, online games, and also cultural heritage. The new advancement in VR and its availability to the end user in many forms necessitates considering the health issues because cybersickness is one of the drawbacks of Virtual Environments (VE). In addition, usability of the VE and the provided VR technology and system is of paramount importance in the market to attract the user. However, usability measurement of the VE also has become a difficult issue due to the vast range of products and users. A review on the cybersickness and usability issues in VE is prepared and presented in this paper.
Automotive industry uses virtual reality (VR) and three-dimensional (3D) modelling at different s... more Automotive industry uses virtual reality (VR) and three-dimensional (3D) modelling at different stages like many other industries in the world. To choose the right technology for the right purpose, it is crucial to identify the existing technology used, their benefits as well as barriers. Six automotive manufacturing companies in Malaysia were selected as case studies for this work. Investigation was performed on3D and VR technologies used. A total number of 240 questionnaires were distributed between selected automotive industry and 153 people responded to the questionnaires. Frequency analysis was conducted followed by t-test on the respondents' answers. Based on the questionnaires, this research identified and analyzed the opportunities of 3D and VR in the industry and their constraints. The results showed that 70.6% of the respondents used 3D modeling and 38% of respondents used VR in their organization at present. It was also found that 'reducing rework' and 'improving quality of manufacturing' are the two most common advantages of using VR technology. 'Lack of knowledge', 'lack of trained people' and 'time to get proficient' are three major barriers for adopting with new technology such as VR. It is concluded that the benefits of using 3D modelling and VR outperformed the existing barriers.
Automotive industry uses virtual reality (VR) at different stages like many other industries in t... more Automotive industry uses virtual reality (VR) at different stages like many other industries in the world. Malaysian automotive industry also is not an exception from this matter. In this study, six automotive companies in Malaysia were selected as case studies to find appropriate departments in implementing VR in Malaysian automotive manufacturing industry. A total of 240 questionnaires were distributed among the six car companies in Malaysia and 153 responded to the questionnaires. For analysing, Pearson chi-square test was conducted followed by frequency analysis on the respondents' answer. The results revealed that manufacturing, designing, 'planning and research' and engineering departments are the appropriate areas for implementing VR technology.
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