Pub Date : 2011-12-01DOI: 10.1109/ISBEIA.2011.6088885
N. Kasmuri, N. F. Idrus, N. Othman
Chitosan, which is soluble in acidic aqueous media, is used in many applications (food, cosmetics, biomedical, pharmaceutical and wastewater treatment). Chitosan appear in white powder form that derived from shells of crustaceans such as crab and shrimp. The rationale of chitosan use because it is biodegradable, non-toxic and low cost. The proposed method of this research study is focus on fabrication of membrane filter. Membrane filtration technologies apply to reduce the environmental problem faced by wastewater in agriculture industry. The poly/chitosan membrane is prepared by blending of polymer (polysulfone), solvent (n-methyl-pyrrolidone), chitosan (crab shells) and acetic acid. The few steps of membrane fabrication; blending, drying and casting. The resultant of membrane fabrication is characterized by using Fourier transform infrared spectroscopy (FTIR) (observation of blend sampling peaks) and microscope analyzer (observation of surface and cross-section of membrane).
{"title":"Utilization of poly/chitosan as membrane for wastewater treatment","authors":"N. Kasmuri, N. F. Idrus, N. Othman","doi":"10.1109/ISBEIA.2011.6088885","DOIUrl":"https://doi.org/10.1109/ISBEIA.2011.6088885","url":null,"abstract":"Chitosan, which is soluble in acidic aqueous media, is used in many applications (food, cosmetics, biomedical, pharmaceutical and wastewater treatment). Chitosan appear in white powder form that derived from shells of crustaceans such as crab and shrimp. The rationale of chitosan use because it is biodegradable, non-toxic and low cost. The proposed method of this research study is focus on fabrication of membrane filter. Membrane filtration technologies apply to reduce the environmental problem faced by wastewater in agriculture industry. The poly/chitosan membrane is prepared by blending of polymer (polysulfone), solvent (n-methyl-pyrrolidone), chitosan (crab shells) and acetic acid. The few steps of membrane fabrication; blending, drying and casting. The resultant of membrane fabrication is characterized by using Fourier transform infrared spectroscopy (FTIR) (observation of blend sampling peaks) and microscope analyzer (observation of surface and cross-section of membrane).","PeriodicalId":358440,"journal":{"name":"2011 IEEE Symposium on Business, Engineering and Industrial Applications (ISBEIA)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126086146","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}
Pub Date : 2011-12-01DOI: 10.1109/ISBEIA.2011.6088872
Seechew Li, A. Nassirharand
This work presents a nonlinear lead-lag controller synthesis for a nonlinear unstable system. Nonlinear lead-lag controller is design based on describing function technique. Unstable system will first be stabilized by designing a stabilizing controller. System will then be excited by known sinusoidal input to generate describing function model of the stabilized closed-loop system. Linear lead-lag controller will be designed based on this describing model followed by optimization of linear lead-lag controller over various operating regime. Inverse describing function will be carried out to invert controller gains at various operating regime. Nonlinear controller will be experimentally verified and compare with linear controller.
{"title":"Nonlinear lead-lag controller design with experimental verification","authors":"Seechew Li, A. Nassirharand","doi":"10.1109/ISBEIA.2011.6088872","DOIUrl":"https://doi.org/10.1109/ISBEIA.2011.6088872","url":null,"abstract":"This work presents a nonlinear lead-lag controller synthesis for a nonlinear unstable system. Nonlinear lead-lag controller is design based on describing function technique. Unstable system will first be stabilized by designing a stabilizing controller. System will then be excited by known sinusoidal input to generate describing function model of the stabilized closed-loop system. Linear lead-lag controller will be designed based on this describing model followed by optimization of linear lead-lag controller over various operating regime. Inverse describing function will be carried out to invert controller gains at various operating regime. Nonlinear controller will be experimentally verified and compare with linear controller.","PeriodicalId":358440,"journal":{"name":"2011 IEEE Symposium on Business, Engineering and Industrial Applications (ISBEIA)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126770613","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}
Pub Date : 2011-12-01DOI: 10.1109/ISBEIA.2011.6088893
Ishak Malim Sidik Malim, M. Suratman, M. Daim
Riparian Buffer Zone (RBZ) is an important rehabilitation zone between land and water that promotes protection to aquatic life and terrestrial wildlife habitat. Public awareness on the importance of implementation RBZ between forest area and development area is crucial as this could help in reducing pollution into forest areas. The objective of this study is to assess the level of public awareness on the importance of the presence of RBZ at Kota Damansara Community Forest Park. A total of 188 respondents were interviewed using survey of questionnaire. From this survey, eighty four percent of the respondents surrounding Kota Damansara Community Forest Park has rejected the Petaling Jaya Local Draft Plan 2020 which proposed a plan in the current forest reserve.
{"title":"Riparian Buffer Zone: An assessment of public awareness in Kota Damansara Community Forest Park","authors":"Ishak Malim Sidik Malim, M. Suratman, M. Daim","doi":"10.1109/ISBEIA.2011.6088893","DOIUrl":"https://doi.org/10.1109/ISBEIA.2011.6088893","url":null,"abstract":"Riparian Buffer Zone (RBZ) is an important rehabilitation zone between land and water that promotes protection to aquatic life and terrestrial wildlife habitat. Public awareness on the importance of implementation RBZ between forest area and development area is crucial as this could help in reducing pollution into forest areas. The objective of this study is to assess the level of public awareness on the importance of the presence of RBZ at Kota Damansara Community Forest Park. A total of 188 respondents were interviewed using survey of questionnaire. From this survey, eighty four percent of the respondents surrounding Kota Damansara Community Forest Park has rejected the Petaling Jaya Local Draft Plan 2020 which proposed a plan in the current forest reserve.","PeriodicalId":358440,"journal":{"name":"2011 IEEE Symposium on Business, Engineering and Industrial Applications (ISBEIA)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116573790","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}
Pub Date : 2011-12-01DOI: 10.1109/ISBEIA.2011.6088788
C. Cheong, Z. Isa, A. H. S. M. Nor
The accuracy of financial time series forecasts often relies on the model precision and also the availability of actual observations for forecast evaluations. This study aims to tackle these issues in order to obtain a suitable asymmetric time-varying volatility model that outperformed the forecast evaluations based on interday and intraday data. First, the model precision is examined based on the most appropriate time-varying volatility representation under the autoregressive conditional heteroscedascity framework. Second, the forecast evaluations are conducted under three loss functions using the volatility proxies and realized volatility. Finally, the empirical studies are implemented on two major financial markets and the estimated results are applied in quantifying their market risks.
{"title":"Asymmetry dynamic volatility forecast evaluations using interday and intraday data","authors":"C. Cheong, Z. Isa, A. H. S. M. Nor","doi":"10.1109/ISBEIA.2011.6088788","DOIUrl":"https://doi.org/10.1109/ISBEIA.2011.6088788","url":null,"abstract":"The accuracy of financial time series forecasts often relies on the model precision and also the availability of actual observations for forecast evaluations. This study aims to tackle these issues in order to obtain a suitable asymmetric time-varying volatility model that outperformed the forecast evaluations based on interday and intraday data. First, the model precision is examined based on the most appropriate time-varying volatility representation under the autoregressive conditional heteroscedascity framework. Second, the forecast evaluations are conducted under three loss functions using the volatility proxies and realized volatility. Finally, the empirical studies are implemented on two major financial markets and the estimated results are applied in quantifying their market risks.","PeriodicalId":358440,"journal":{"name":"2011 IEEE Symposium on Business, Engineering and Industrial Applications (ISBEIA)","volume":"234 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122623000","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}
Pub Date : 2011-12-01DOI: 10.1109/ISBEIA.2011.6088884
Zainal Samicho, Akmar Ramli
Chitosan is a naturally-occurring polysaccharide produced from deacetylation of chitin. It is abundant in exoskeletons of marine creatures. Among of its interesting characteristics is its ability to bind fat and cholesterol, antimicrobial, and anti-oxidation properties. Due to its anti-microbial and anti-oxidation properties, chitosan has been used as films coatings for vegetables and fruits. This paper presents a review of current research in chitosan extraction as well as methodology for synthesizing film casings with it.
{"title":"Extraction of chitosan & its film-forming properties: A review","authors":"Zainal Samicho, Akmar Ramli","doi":"10.1109/ISBEIA.2011.6088884","DOIUrl":"https://doi.org/10.1109/ISBEIA.2011.6088884","url":null,"abstract":"Chitosan is a naturally-occurring polysaccharide produced from deacetylation of chitin. It is abundant in exoskeletons of marine creatures. Among of its interesting characteristics is its ability to bind fat and cholesterol, antimicrobial, and anti-oxidation properties. Due to its anti-microbial and anti-oxidation properties, chitosan has been used as films coatings for vegetables and fruits. This paper presents a review of current research in chitosan extraction as well as methodology for synthesizing film casings with it.","PeriodicalId":358440,"journal":{"name":"2011 IEEE Symposium on Business, Engineering and Industrial Applications (ISBEIA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129937801","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}
Pub Date : 2011-12-01DOI: 10.1109/ISBEIA.2011.6088854
W. Yusoff, S. A. Nasir, W. M. Ahmad
The purpose of this research is to investigate the effect of “Orange Peel” surface texture into the part's surface finish. The research analyzes the surface and microstructure of the “Orange Peel” surface texture of the laser sintered parts. The “Orange Peel” surface was identified to undergo surface roughness measurement and microstructure analysis. Then, a classification of the degree of “Orange Peel” severity was proposed based on the surface roughness measurement result. Finally, it was found that parts from recycle powder has poorer surface texture and has a large portion of unsintered powder particles. Based on the findings, a better understanding on powder recycling is defined especially in the scope of surface roughness and microstructure. The result will allow researcher to make improvement in laser sintering process.
{"title":"Investigation of the effect of “Orange Peel” surface texture on the laser sintered part","authors":"W. Yusoff, S. A. Nasir, W. M. Ahmad","doi":"10.1109/ISBEIA.2011.6088854","DOIUrl":"https://doi.org/10.1109/ISBEIA.2011.6088854","url":null,"abstract":"The purpose of this research is to investigate the effect of “Orange Peel” surface texture into the part's surface finish. The research analyzes the surface and microstructure of the “Orange Peel” surface texture of the laser sintered parts. The “Orange Peel” surface was identified to undergo surface roughness measurement and microstructure analysis. Then, a classification of the degree of “Orange Peel” severity was proposed based on the surface roughness measurement result. Finally, it was found that parts from recycle powder has poorer surface texture and has a large portion of unsintered powder particles. Based on the findings, a better understanding on powder recycling is defined especially in the scope of surface roughness and microstructure. The result will allow researcher to make improvement in laser sintering process.","PeriodicalId":358440,"journal":{"name":"2011 IEEE Symposium on Business, Engineering and Industrial Applications (ISBEIA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130674561","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}
Pub Date : 2011-12-01DOI: 10.1109/ISBEIA.2011.6088852
S. Alwee, H. Ramli, M. Maisham
The last five decades or so ago following the independence, Malaysia have seen a tremendous growth of development within the construction industry. Along with this development came the increasing needs for more qualified personnel and technocrats. The task to provide professional trainings for the required manpower was given to the Higher Education Institutions. Playing this important role, UiTM for one, has since then conducted the Quantity Surveying Programme to cater for the mushrooming construction industry. The purpose of the programme was mainly to generate the number of professionals suitably trained to perform the contract administration works including the technical estimations for construction developments. Nonetheless, educating the adult students is always far more challenging and complex than teaching schoolchildren. Among the important functions of the higher level institutions is to train our future workforce by providing them with the relevant knowledge and skills. For this reason, graduates from the QS programme must be able to meet their professional expectations and challenges of the future. The aim of this paper is to study the important role of Bloom's taxonomy as applied in the higher level institutions specifically for degree programme offered by the Department of Quantity Surveying UiTM. The reviews also explain the relevance between the assessments in the Bloom's taxonomy with the Quantity Surveying degree programme. The findings, would provide the conceptual understanding about the Bachelor of Quantity Surveying (Honours) programme being taught at UiTM. This has to comply with the learning outcomes as stipulated in Bloom's Taxonomy which should also reflect the construction industry's needs.
{"title":"Bloom's taxonomy in the provision of quantity surveying degree programme","authors":"S. Alwee, H. Ramli, M. Maisham","doi":"10.1109/ISBEIA.2011.6088852","DOIUrl":"https://doi.org/10.1109/ISBEIA.2011.6088852","url":null,"abstract":"The last five decades or so ago following the independence, Malaysia have seen a tremendous growth of development within the construction industry. Along with this development came the increasing needs for more qualified personnel and technocrats. The task to provide professional trainings for the required manpower was given to the Higher Education Institutions. Playing this important role, UiTM for one, has since then conducted the Quantity Surveying Programme to cater for the mushrooming construction industry. The purpose of the programme was mainly to generate the number of professionals suitably trained to perform the contract administration works including the technical estimations for construction developments. Nonetheless, educating the adult students is always far more challenging and complex than teaching schoolchildren. Among the important functions of the higher level institutions is to train our future workforce by providing them with the relevant knowledge and skills. For this reason, graduates from the QS programme must be able to meet their professional expectations and challenges of the future. The aim of this paper is to study the important role of Bloom's taxonomy as applied in the higher level institutions specifically for degree programme offered by the Department of Quantity Surveying UiTM. The reviews also explain the relevance between the assessments in the Bloom's taxonomy with the Quantity Surveying degree programme. The findings, would provide the conceptual understanding about the Bachelor of Quantity Surveying (Honours) programme being taught at UiTM. This has to comply with the learning outcomes as stipulated in Bloom's Taxonomy which should also reflect the construction industry's needs.","PeriodicalId":358440,"journal":{"name":"2011 IEEE Symposium on Business, Engineering and Industrial Applications (ISBEIA)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123875009","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}
Pub Date : 2011-12-01DOI: 10.1109/ISBEIA.2011.6088864
A. Abd Aziz, M. Ab-Rahman, K. Jumari
This paper presents optimum width of optical waveguide for integration in the fiber optic communication network. The objective of this study is to find the best design of optical device that gives maximum level of performance in optical network. Optical waveguide was designed and simulated using device design software based on beam propagation method called BPM tool for modeling light transmission in waveguide. A 1×2 splitter was designed to be integrated into network test bed to see the performance of the device. Performance of the device was measured based on output power of the device and its insertion loss. Results obtained shows that waveguide design with 6µm width has the lowest insertion loss with −0.021 dB.
{"title":"Optimum width of optical waveguide for fiber optics communication","authors":"A. Abd Aziz, M. Ab-Rahman, K. Jumari","doi":"10.1109/ISBEIA.2011.6088864","DOIUrl":"https://doi.org/10.1109/ISBEIA.2011.6088864","url":null,"abstract":"This paper presents optimum width of optical waveguide for integration in the fiber optic communication network. The objective of this study is to find the best design of optical device that gives maximum level of performance in optical network. Optical waveguide was designed and simulated using device design software based on beam propagation method called BPM tool for modeling light transmission in waveguide. A 1×2 splitter was designed to be integrated into network test bed to see the performance of the device. Performance of the device was measured based on output power of the device and its insertion loss. Results obtained shows that waveguide design with 6µm width has the lowest insertion loss with −0.021 dB.","PeriodicalId":358440,"journal":{"name":"2011 IEEE Symposium on Business, Engineering and Industrial Applications (ISBEIA)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116502086","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}
Pub Date : 2011-12-01DOI: 10.1109/ISBEIA.2011.6088883
Kamran Ali, Norishahaini Mohamed Ishak, A. Ridzuan
Concrete behave differently when exposed to sulphate. Sulphate may exist in soil, ground water, sea water and effluent discharge by industry. As a result of sulphate attack, cracking, expansion, spalling, loss in volume and strength may take place. To minimize such occurrence, several factors need to be considered such as water/ cement ratio, permeability of the concrete, condition of sulphate exposure, cement composition, curing condition, etc need to be accounted. The idea of this study is to compare the behavior of normal concrete containing steel slag aggregate and normal aggregate under the exposure of two types of sulphate ions namely, natrium sulphate and magnesium sulphate with 0.3molar 5 % concentration for a period of twenty weeks. The durability of concrete containing steel slag i.e. changes in physical, volume and strength after the immersion process has been observed. The result of different water cement ratio of 0.47, 0.52, and 0.55 and steel slag aggregate replacement of 10%, 50% and 100% of total aggregate proportion are presented and analysed. From the result, it shows that the durability of steel slag aggregate (SSA) and natural aggregate (NA) concrete has the same performance.
混凝土暴露于硫酸盐中时表现不同。硫酸盐可能存在于土壤、地下水、海水和工业排放的污水中。由于硫酸盐的侵蚀，可能会发生开裂、膨胀、剥落、体积和强度的损失。为了尽量减少这种情况的发生，需要考虑几个因素，如水灰比、混凝土的渗透性、硫酸盐暴露条件、水泥成分、养护条件等。本研究的思路是比较含钢渣骨料的普通混凝土和普通骨料在0.3mol / l 5%浓度的硫酸钠和硫酸镁两种硫酸盐离子作用下的性能，时间为20周。研究了含钢渣混凝土在浸渍过程中的耐久性，即物理、体积和强度的变化。给出了0.47、0.52、0.55水灰比和10%、50%、100%的钢渣骨料置换效果，并进行了分析。结果表明，钢渣骨料(SSA)与天然骨料(NA)混凝土的耐久性性能相同。
{"title":"Performance of concrete containing steel slag exposed to sulphate environment: A comparison of steel slag and natural aggregate use","authors":"Kamran Ali, Norishahaini Mohamed Ishak, A. Ridzuan","doi":"10.1109/ISBEIA.2011.6088883","DOIUrl":"https://doi.org/10.1109/ISBEIA.2011.6088883","url":null,"abstract":"Concrete behave differently when exposed to sulphate. Sulphate may exist in soil, ground water, sea water and effluent discharge by industry. As a result of sulphate attack, cracking, expansion, spalling, loss in volume and strength may take place. To minimize such occurrence, several factors need to be considered such as water/ cement ratio, permeability of the concrete, condition of sulphate exposure, cement composition, curing condition, etc need to be accounted. The idea of this study is to compare the behavior of normal concrete containing steel slag aggregate and normal aggregate under the exposure of two types of sulphate ions namely, natrium sulphate and magnesium sulphate with 0.3molar 5 % concentration for a period of twenty weeks. The durability of concrete containing steel slag i.e. changes in physical, volume and strength after the immersion process has been observed. The result of different water cement ratio of 0.47, 0.52, and 0.55 and steel slag aggregate replacement of 10%, 50% and 100% of total aggregate proportion are presented and analysed. From the result, it shows that the durability of steel slag aggregate (SSA) and natural aggregate (NA) concrete has the same performance.","PeriodicalId":358440,"journal":{"name":"2011 IEEE Symposium on Business, Engineering and Industrial Applications (ISBEIA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130242448","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}
Pub Date : 2011-12-01DOI: 10.1109/ISBEIA.2011.6088802
M. Azman, K. John, M. Shahir Liew
Rapid expansion of oil and gas industry in 20th century increased the demand for accurate and reliable environmental load prediction. With the increase in natural disasters like tsunami, typhoon, and rise in water level from global warming, it is very important for engineers to model the environmental load accurately. Eight fixed offshore jacket platforms with four, six and eight-legged configurations and with K and X type bracings were chosen for this study. Three sets of environmental data for ten, fifty and hundred year conditions covering three regions in Malaysia were selected. Peninsular region was observed to encounter the highest environmental loading of about 21 MN followed by Sabah region with 3.6 MN and Sarawak region with 3.4 MN. The dominant load direction was from North and North East from the open South China Sea. This was logical since most of the fixed offshore platforms in Malaysia are located at about 30 to 150 km distance from shore. Apart from the location, the size, appurtenances and marine growth of the fixed offshore platforms impacted the load. From these findings, engineers can now use different design approaches and redundancy arrangements for the different regions in Malaysia for reducing the cost without compromising the safety of the structure.
{"title":"Environmental load modeling for offshore Malaysia regions","authors":"M. Azman, K. John, M. Shahir Liew","doi":"10.1109/ISBEIA.2011.6088802","DOIUrl":"https://doi.org/10.1109/ISBEIA.2011.6088802","url":null,"abstract":"Rapid expansion of oil and gas industry in 20th century increased the demand for accurate and reliable environmental load prediction. With the increase in natural disasters like tsunami, typhoon, and rise in water level from global warming, it is very important for engineers to model the environmental load accurately. Eight fixed offshore jacket platforms with four, six and eight-legged configurations and with K and X type bracings were chosen for this study. Three sets of environmental data for ten, fifty and hundred year conditions covering three regions in Malaysia were selected. Peninsular region was observed to encounter the highest environmental loading of about 21 MN followed by Sabah region with 3.6 MN and Sarawak region with 3.4 MN. The dominant load direction was from North and North East from the open South China Sea. This was logical since most of the fixed offshore platforms in Malaysia are located at about 30 to 150 km distance from shore. Apart from the location, the size, appurtenances and marine growth of the fixed offshore platforms impacted the load. From these findings, engineers can now use different design approaches and redundancy arrangements for the different regions in Malaysia for reducing the cost without compromising the safety of the structure.","PeriodicalId":358440,"journal":{"name":"2011 IEEE Symposium on Business, Engineering and Industrial Applications (ISBEIA)","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134424890","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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