A. R. Ridzuan, A. Luthfia, R. S. Mohideen, S. N. S. Allam, N. A. K. Zamri, A. Zulkarnain, S. Ismail, A. Ramlan, R. A. A. W. Puspokusumo
One of Covid-19 side effects was movement control order (MCO). Panic buying can be defined as the action of buying large quantities of a particular product or commodity due to sudden fears and a lockdown announcement from the government just adds fuel to the flames. This study has been done to identify the level of panic buying during movement restricted order (MCO). Panic buying is chosen as the research’s topic because it is the most obvious reaction that was shown from the public when MCO was announced and wanted to know did they practice this behavior or not. The researcher used questionnaire form to survey the level of panic buying during MCO. Google form was also used to determine the survey and the link was distributed to all social media platforms. From the survey, we gained 411 respondents, starting from age 18 and above that involved various ethnic in Malaysia. The findings show that the level of panic buying among Malaysian is very low (m=2.13).
{"title":"Panic buying during Covid-19 in Malaysia","authors":"A. R. Ridzuan, A. Luthfia, R. S. Mohideen, S. N. S. Allam, N. A. K. Zamri, A. Zulkarnain, S. Ismail, A. Ramlan, R. A. A. W. Puspokusumo","doi":"10.1063/5.0052006","DOIUrl":"https://doi.org/10.1063/5.0052006","url":null,"abstract":"One of Covid-19 side effects was movement control order (MCO). Panic buying can be defined as the action of buying large quantities of a particular product or commodity due to sudden fears and a lockdown announcement from the government just adds fuel to the flames. This study has been done to identify the level of panic buying during movement restricted order (MCO). Panic buying is chosen as the research’s topic because it is the most obvious reaction that was shown from the public when MCO was announced and wanted to know did they practice this behavior or not. The researcher used questionnaire form to survey the level of panic buying during MCO. Google form was also used to determine the survey and the link was distributed to all social media platforms. From the survey, we gained 411 respondents, starting from age 18 and above that involved various ethnic in Malaysia. The findings show that the level of panic buying among Malaysian is very low (m=2.13).","PeriodicalId":259202,"journal":{"name":"PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132720288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper presents a short summery on the effect of the addition and doping of Sn-Ag-Cu or commonly known as SAC alloys with Aluminum oxide (Al2O3) nanoparticles. The paper introduce initially the background of the lead free solders as well as establish the concept of nanoparticle reinforcement composite lead free solder alloys. Then a short summery on the effect of the two nanoparticle reinforcement on the sac solder in the sections of Thermal properties and mechanical properties is presented. For instance some reported with Sn-0.3Ag-0.7Cu (SAC0307) when alloyed with 0.12 Al2O3 it showed an improved shear force of thermal cycling when it came to the mode of ductile fracture in comparison to the original alloy which possess a mode of fracture that presented a mixture between ductile and brittle.
{"title":"Review on the Al2O3 nanoparticle reinforcement effect on thermal and mechanical properties of SAC alloys","authors":"Ervina Efzan, Hana Abdalla, Umer Nirmal","doi":"10.1063/5.0052945","DOIUrl":"https://doi.org/10.1063/5.0052945","url":null,"abstract":"This paper presents a short summery on the effect of the addition and doping of Sn-Ag-Cu or commonly known as SAC alloys with Aluminum oxide (Al2O3) nanoparticles. The paper introduce initially the background of the lead free solders as well as establish the concept of nanoparticle reinforcement composite lead free solder alloys. Then a short summery on the effect of the two nanoparticle reinforcement on the sac solder in the sections of Thermal properties and mechanical properties is presented. For instance some reported with Sn-0.3Ag-0.7Cu (SAC0307) when alloyed with 0.12 Al2O3 it showed an improved shear force of thermal cycling when it came to the mode of ductile fracture in comparison to the original alloy which possess a mode of fracture that presented a mixture between ductile and brittle.","PeriodicalId":259202,"journal":{"name":"PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128206690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Ahmad, N. Kasmuri, S. Ramasamy, R. Santiagoo, Nurul Asmidar Mahadi
The catalytic pyrolysis of agricultural waste by waste eggs shell had been studied in the fixed bed reactor. The objectives of this study were to investigate the potential use of waste eggs shell as catalyst in pyrolysis process and to determine the effect of pyrolysis product with various pyrolysis parameters which are temperature, heating rate and biomass size and to determine the effect of catalyst on bio oil production. The optimum parameter for maximum bio oil yield from this study were at temperature of 450°C, heating rate of 50°C/min and biomass size of 425 µm. In this study, the used of eggs shell as a catalyst produced the highest bio oil yields of 65.67%.
{"title":"Catalytic pyrolysis of agricultural waste using waste egg shell","authors":"R. Ahmad, N. Kasmuri, S. Ramasamy, R. Santiagoo, Nurul Asmidar Mahadi","doi":"10.1063/5.0051554","DOIUrl":"https://doi.org/10.1063/5.0051554","url":null,"abstract":"The catalytic pyrolysis of agricultural waste by waste eggs shell had been studied in the fixed bed reactor. The objectives of this study were to investigate the potential use of waste eggs shell as catalyst in pyrolysis process and to determine the effect of pyrolysis product with various pyrolysis parameters which are temperature, heating rate and biomass size and to determine the effect of catalyst on bio oil production. The optimum parameter for maximum bio oil yield from this study were at temperature of 450°C, heating rate of 50°C/min and biomass size of 425 µm. In this study, the used of eggs shell as a catalyst produced the highest bio oil yields of 65.67%.","PeriodicalId":259202,"journal":{"name":"PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131866860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. S. Effendi, Z. Shayfull, H. Radhwan, S. Ahmad, Abdul Qayyum Mohd Fauzi, A. Ismail, Muhamad Nasyran Mohd Nordin, Wong Xian Jun
This study establishes the evaluation of manual helical pencil sharpener in optimising the sustainability consideration to influencing the production process by choosing its suitable materials, eventually exploring the potential of product redesign towards sustainability that could be enhanced. This analysis included and combined Life Cycle Analysis (LCA). The results showed that the amount had been reduced after application of DFMA. In contrast, sustainability analysis demonstrated the reduction of weight to 30%, carbon footprint 32%, air acidification 28%, water eutrophication 88%, and the overall energy usage 9%. This new approach is essential to demonstrate the efficiency of both instruments used to minimise pencil sharpener production costs and to enhance the sustainable aspects of product design.
{"title":"An analysis of environmental impact of mechanical sharpener: Integrating DFMA and sustainable design analysis","authors":"M. S. Effendi, Z. Shayfull, H. Radhwan, S. Ahmad, Abdul Qayyum Mohd Fauzi, A. Ismail, Muhamad Nasyran Mohd Nordin, Wong Xian Jun","doi":"10.1063/5.0051974","DOIUrl":"https://doi.org/10.1063/5.0051974","url":null,"abstract":"This study establishes the evaluation of manual helical pencil sharpener in optimising the sustainability consideration to influencing the production process by choosing its suitable materials, eventually exploring the potential of product redesign towards sustainability that could be enhanced. This analysis included and combined Life Cycle Analysis (LCA). The results showed that the amount had been reduced after application of DFMA. In contrast, sustainability analysis demonstrated the reduction of weight to 30%, carbon footprint 32%, air acidification 28%, water eutrophication 88%, and the overall energy usage 9%. This new approach is essential to demonstrate the efficiency of both instruments used to minimise pencil sharpener production costs and to enhance the sustainable aspects of product design.","PeriodicalId":259202,"journal":{"name":"PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)","volume":"122 38","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131880041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. H. Osman, O. S. Kai, S. Adnan, S. Salim, Mir Tanjidur Rahman, A. Jaafar, M. Jeni, N. F. Yahya
This study focuses on the application of expanded polystyrene (EPS) and palm oil fuel ash (POFA) as replacement materials in concrete. In this study, EPS was utilized to replace fine aggregate up to 20% in the concrete mixture. One the other hand, POFA replaced cement up to 30% in the concrete mixture. The chemical properties of POFA were determined using XRD analysis and compared with cement. The mechanical properties of concrete cubes containing EPS and POFA were determined based on workability, density, water absorption and compressive strength. The performance of the concrete containing EPS and POFA was then compared with the normal concrete. As a result, the performance of the concrete containing EPS and POFA was determined.
{"title":"Mechanical properties of concrete containing expanded polystyrene (EPS) and palm oil fuel ash (POFA)","authors":"M. H. Osman, O. S. Kai, S. Adnan, S. Salim, Mir Tanjidur Rahman, A. Jaafar, M. Jeni, N. F. Yahya","doi":"10.1063/5.0052774","DOIUrl":"https://doi.org/10.1063/5.0052774","url":null,"abstract":"This study focuses on the application of expanded polystyrene (EPS) and palm oil fuel ash (POFA) as replacement materials in concrete. In this study, EPS was utilized to replace fine aggregate up to 20% in the concrete mixture. One the other hand, POFA replaced cement up to 30% in the concrete mixture. The chemical properties of POFA were determined using XRD analysis and compared with cement. The mechanical properties of concrete cubes containing EPS and POFA were determined based on workability, density, water absorption and compressive strength. The performance of the concrete containing EPS and POFA was then compared with the normal concrete. As a result, the performance of the concrete containing EPS and POFA was determined.","PeriodicalId":259202,"journal":{"name":"PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131892176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. A. B. T. H. Saadiah, M. Maryana, M. Nursalwani, Z. Suhana, R. Airina, M. Intan
Agro-food entrepreneurship is one of the sectors that is popular in Malaysia. However, the failure rate in Malaysia is higher because people involved in agro-food entrepreneur are not aware of the business challenges and lacking knowledge about financial, marketing and management skills. The purpose of this research is to study the impact of participation of housewife and single mother in Agro-food Entrepreneurship (Frozen Food) and Marketing Strategy Training Module in Kelantan. A survey using a self-administered questionnaire has been conducted among 70 respondents who are involved in the Agro-food Entrepreneurship (Frozen Food) and Marketing Strategy Training Module in Kelantan through pre and post-assessments. The findings indicate that all respondents are interested in joining Agro-food Entrepreneurship (Frozen Food) and Marketing Strategy Training Module in Kelantan, and they have agreed that this training can improve the knowledge, skill and their quality of life. This study may provide useful information in identifying the best mechanisms to encourage women, especially housewife and single mothers’ participation in the Agro-food entrepreneurship training or program.
{"title":"Impact of participation on Agro-food entrepreneurship (Frozen food) and marketing strategy training module among housewife and single mother in Kelantan","authors":"T. A. B. T. H. Saadiah, M. Maryana, M. Nursalwani, Z. Suhana, R. Airina, M. Intan","doi":"10.1063/5.0051829","DOIUrl":"https://doi.org/10.1063/5.0051829","url":null,"abstract":"Agro-food entrepreneurship is one of the sectors that is popular in Malaysia. However, the failure rate in Malaysia is higher because people involved in agro-food entrepreneur are not aware of the business challenges and lacking knowledge about financial, marketing and management skills. The purpose of this research is to study the impact of participation of housewife and single mother in Agro-food Entrepreneurship (Frozen Food) and Marketing Strategy Training Module in Kelantan. A survey using a self-administered questionnaire has been conducted among 70 respondents who are involved in the Agro-food Entrepreneurship (Frozen Food) and Marketing Strategy Training Module in Kelantan through pre and post-assessments. The findings indicate that all respondents are interested in joining Agro-food Entrepreneurship (Frozen Food) and Marketing Strategy Training Module in Kelantan, and they have agreed that this training can improve the knowledge, skill and their quality of life. This study may provide useful information in identifying the best mechanisms to encourage women, especially housewife and single mothers’ participation in the Agro-food entrepreneurship training or program.","PeriodicalId":259202,"journal":{"name":"PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)","volume":"334 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133498465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Smoking has become a comman practice in society today. Various initiatives have been taken to reduce smoker populations in the country but almost all doesn’t work. The introduction and imposition of a ban on smoking in public spaces especially on food premises introduced by the Ministry of Health Malaysia have received positive and negative responses from consumers. This study was conducted to determine the level of consumers’ awareness of the implications of smoking on health; and the level of consumers’ acceptance of smoking ban instructions on food premises. At the same time, the study also aimed at determining the food premis owners’ perceptions of no smoking instructions at food premises. A total of 500 consumers at the food premises and 50 food premis owner were selected as a sample. Findings indicate that the level of knowledge about the implications of smoking on health was high (mean = 3.54) and that respondents’ level of acceptance of smoking ban instructions was also high (mean = 3.13). The analysis also showed that there was a significant relationship between the level of respondents’ knowledge of the implications of smoking and the prohibition of smoking imposed on food premises with a value of r = 0.728 at a significant level p = 0.000 level. Meanwhile, most food premis owners say that smoking bans on food premises do not affect their business performance, and Pearson’s correlation findings also indicate that there is a weak relationship between smoking bans and business performance.
{"title":"Knowledge of smoking implications and acceptance of smoking ban at food premises","authors":"K. Isa, J. Jamin, S. T. Palpanadan, M. Mizad","doi":"10.1063/5.0052135","DOIUrl":"https://doi.org/10.1063/5.0052135","url":null,"abstract":"Smoking has become a comman practice in society today. Various initiatives have been taken to reduce smoker populations in the country but almost all doesn’t work. The introduction and imposition of a ban on smoking in public spaces especially on food premises introduced by the Ministry of Health Malaysia have received positive and negative responses from consumers. This study was conducted to determine the level of consumers’ awareness of the implications of smoking on health; and the level of consumers’ acceptance of smoking ban instructions on food premises. At the same time, the study also aimed at determining the food premis owners’ perceptions of no smoking instructions at food premises. A total of 500 consumers at the food premises and 50 food premis owner were selected as a sample. Findings indicate that the level of knowledge about the implications of smoking on health was high (mean = 3.54) and that respondents’ level of acceptance of smoking ban instructions was also high (mean = 3.13). The analysis also showed that there was a significant relationship between the level of respondents’ knowledge of the implications of smoking and the prohibition of smoking imposed on food premises with a value of r = 0.728 at a significant level p = 0.000 level. Meanwhile, most food premis owners say that smoking bans on food premises do not affect their business performance, and Pearson’s correlation findings also indicate that there is a weak relationship between smoking bans and business performance.","PeriodicalId":259202,"journal":{"name":"PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)","volume":"133 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133063262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. A. B. T. H. Saadiah, M. M. Vanisha, M. Maryana, L. Naher, R. Fazidah
Nowadays, despite having many post-harvest technologies being introduced to the farmers in helping to maintain crop shelf life, the percentage of post-harvest losses is still high. Although the phenomenon of new post-harvest technology acceptance has been well appreciated, the increasing characteristics phenomenon of technology rejection is yet to be understood and studied. The objective of this study is to determine the factors influencing post-harvest technology acceptance among fruit vegetables farmers in the East Coast Economic Region (ECER). A structured questionnaire was designed based on combinations of the Technology Acceptance Model (TAM) and Theory of Planned Behaviour. This study has employed a simple random sampling technique in selecting 105 fruit vegetables in ECER to answer the questionnaire. The findings indicate that fruit vegetable farmers in ECER have accepted the post-harvest technology, but they do not use and apply the technology. The factors derived which are perceived usefulness (M = 4.11, SD = 0.622), perceived ease of use (M = 3.84, SD = 0.588) and attitude (M = 3.89, SD = 0.680) have all shown a high mean score. The findings of this study emphasise on the factor that influencing technology acceptance in improving and maintaining the quality of fruits vegetables to reduce the post-harvest losses.
{"title":"Factors influencing postharvest technology acceptance among fruit vegetable farmers in the east coast economic region (ECER), Malaysia","authors":"T. A. B. T. H. Saadiah, M. M. Vanisha, M. Maryana, L. Naher, R. Fazidah","doi":"10.1063/5.0051814","DOIUrl":"https://doi.org/10.1063/5.0051814","url":null,"abstract":"Nowadays, despite having many post-harvest technologies being introduced to the farmers in helping to maintain crop shelf life, the percentage of post-harvest losses is still high. Although the phenomenon of new post-harvest technology acceptance has been well appreciated, the increasing characteristics phenomenon of technology rejection is yet to be understood and studied. The objective of this study is to determine the factors influencing post-harvest technology acceptance among fruit vegetables farmers in the East Coast Economic Region (ECER). A structured questionnaire was designed based on combinations of the Technology Acceptance Model (TAM) and Theory of Planned Behaviour. This study has employed a simple random sampling technique in selecting 105 fruit vegetables in ECER to answer the questionnaire. The findings indicate that fruit vegetable farmers in ECER have accepted the post-harvest technology, but they do not use and apply the technology. The factors derived which are perceived usefulness (M = 4.11, SD = 0.622), perceived ease of use (M = 3.84, SD = 0.588) and attitude (M = 3.89, SD = 0.680) have all shown a high mean score. The findings of this study emphasise on the factor that influencing technology acceptance in improving and maintaining the quality of fruits vegetables to reduce the post-harvest losses.","PeriodicalId":259202,"journal":{"name":"PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)","volume":"10 109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122401764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Adding small amount of graphene oxide (GO) into heat transfer fluids has been found to enhance thermophysical properties of the fluids. Nevertheless, the efficiency a GO-based nanofluid for heat transfer application is depending on ability of the GO to stay disperse in the base fluid. Realizing this, the present study investigated the long-term colloidal stability (up to 2 days) of GO upon added into different types of commonly used heat transfer fluids. Results showed that GO can be dispersed in distilled water, ethylene glycol, propylene glycol, and ethanol upon subjected to sonication. However, rapid agglomeration and sedimentation of the GO in ethanol medium rendering it a less effective heat transfer nanofluid. On the other hand, GO nanoparticles were observed to be highly stable in both ethylene glycol and propylene glycol, possibly due to protic nature of these two base fluids. In fact, the GO nanoparticles were found to be ~100 % and > 82 % stable in ethylene glycol and propylene glycol-rich medium, respectively; a condition much better than the one dispersed in distilled water medium. Interestingly, it was found that the GO failed to disperse in engine oil which made up of non-polar hydrocarbon chain, hence, suggested its poor compatibility with this type of heat transfer fluid. It is envisaged that outcome from the present work can provide a proper guideline on the selection of suitable fluid for making GO-based heat transfer fluid.
{"title":"Evaluating the colloidal stability of graphene oxide nanosheet in heat transfer fluids","authors":"Yi Xiang Phan, Wee Siang Koh, S. Yeap","doi":"10.1063/5.0051910","DOIUrl":"https://doi.org/10.1063/5.0051910","url":null,"abstract":"Adding small amount of graphene oxide (GO) into heat transfer fluids has been found to enhance thermophysical properties of the fluids. Nevertheless, the efficiency a GO-based nanofluid for heat transfer application is depending on ability of the GO to stay disperse in the base fluid. Realizing this, the present study investigated the long-term colloidal stability (up to 2 days) of GO upon added into different types of commonly used heat transfer fluids. Results showed that GO can be dispersed in distilled water, ethylene glycol, propylene glycol, and ethanol upon subjected to sonication. However, rapid agglomeration and sedimentation of the GO in ethanol medium rendering it a less effective heat transfer nanofluid. On the other hand, GO nanoparticles were observed to be highly stable in both ethylene glycol and propylene glycol, possibly due to protic nature of these two base fluids. In fact, the GO nanoparticles were found to be ~100 % and > 82 % stable in ethylene glycol and propylene glycol-rich medium, respectively; a condition much better than the one dispersed in distilled water medium. Interestingly, it was found that the GO failed to disperse in engine oil which made up of non-polar hydrocarbon chain, hence, suggested its poor compatibility with this type of heat transfer fluid. It is envisaged that outcome from the present work can provide a proper guideline on the selection of suitable fluid for making GO-based heat transfer fluid.","PeriodicalId":259202,"journal":{"name":"PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123892699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Z. Zainol, M. S. Jusoh, F. A. Ibrahim, N. Hamidin
A questionnaire is a vital research instrument consisting of a series of questions for the purpose of gathering information from respondents. Most psychological research required an instrument that shall be valid and reliable to investigate that particular study’s intended variables. Eventually, such an instrument that fits the study is very rare. So, a need was felt to develop a suitable and reliable tool for the same purpose. To develop an instrument for measuring variables, i.e., Integrated Management System and Innovation Performance, and to test its reliability and validity. A draft of the 59-item scale was developed, which comprises 14 items in the demographics section and 45 measurement items. The tool’s content validity was established by accepting items that range in between 75% to 90% of the validity index for each item. To test the instrument’s reliability, a pilot study was conducted where the instrument is applied to 30 respondents representing 30 different organisations involved in building construction. The instrument passes the content validity with an index of .78 while it has no significant face validity issues. Statistical analyses showed excellent internal consistency by Cronbach’s alpha which all variables are above 0.8. The instrument has acceptable properties (i.e., valid and reliable) and is suitable for measuring the intended variables, i.e., IMS and IP. It is recommended to be further tested for construct validity.
{"title":"Development of instrumentation for a study on relationship between integrated management system and innovation performance in Malaysia Green building industry","authors":"N. Z. Zainol, M. S. Jusoh, F. A. Ibrahim, N. Hamidin","doi":"10.1063/5.0051657","DOIUrl":"https://doi.org/10.1063/5.0051657","url":null,"abstract":"A questionnaire is a vital research instrument consisting of a series of questions for the purpose of gathering information from respondents. Most psychological research required an instrument that shall be valid and reliable to investigate that particular study’s intended variables. Eventually, such an instrument that fits the study is very rare. So, a need was felt to develop a suitable and reliable tool for the same purpose. To develop an instrument for measuring variables, i.e., Integrated Management System and Innovation Performance, and to test its reliability and validity. A draft of the 59-item scale was developed, which comprises 14 items in the demographics section and 45 measurement items. The tool’s content validity was established by accepting items that range in between 75% to 90% of the validity index for each item. To test the instrument’s reliability, a pilot study was conducted where the instrument is applied to 30 respondents representing 30 different organisations involved in building construction. The instrument passes the content validity with an index of .78 while it has no significant face validity issues. Statistical analyses showed excellent internal consistency by Cronbach’s alpha which all variables are above 0.8. The instrument has acceptable properties (i.e., valid and reliable) and is suitable for measuring the intended variables, i.e., IMS and IP. It is recommended to be further tested for construct validity.","PeriodicalId":259202,"journal":{"name":"PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128659743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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