Pub Date : 2011-09-01DOI: 10.1109/NATPC.2011.6136307
Sureena Matayong, A. Mahmood
Today, Oil and Gas industry are at a cross road of overcoming their knowledge deficit by implementing knowledge management system (KMS). However, at this stage, many organizations are still facing with some difficulties and challenges related to its adoption. As decision making is one of the factors for individual in organizations to adopt the system. This study seeks to identify the types of innovation decision according to Rogers' (1995) innovation diffusion theory. The company of this case study faces with KMS adoption which only 15% active users at present. The identified innovation decision from the result could prove useful in understanding the employees' decision making and also give the possibility to help company reaches its KMS goals.
{"title":"KMS innovation decision making: The case study of oil and gas industry in Malaysia","authors":"Sureena Matayong, A. Mahmood","doi":"10.1109/NATPC.2011.6136307","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136307","url":null,"abstract":"Today, Oil and Gas industry are at a cross road of overcoming their knowledge deficit by implementing knowledge management system (KMS). However, at this stage, many organizations are still facing with some difficulties and challenges related to its adoption. As decision making is one of the factors for individual in organizations to adopt the system. This study seeks to identify the types of innovation decision according to Rogers' (1995) innovation diffusion theory. The company of this case study faces with KMS adoption which only 15% active users at present. The identified innovation decision from the result could prove useful in understanding the employees' decision making and also give the possibility to help company reaches its KMS goals.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86214059","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 : 2011-09-01DOI: 10.1109/NATPC.2011.6136372
M. Sodangi, A. Idrus, Faris M. Khamidi
Heritage buildings are regarded as highly valuable assets to the tourism industry because of their strong influence in motivating foreign tourists to visit the country. The tourism industry generate significant revenue (GNI of RM56.5 billion in 2010) to the Malaysian economy thereby making the tourism industry the second most important sectors of the economy. Foreign tourists are attracted to these buildings due to their cultural uniqueness, high historical and architectural values, and the strong desire to see something different. Hence, it became paramount to conserve these buildings in order to prolong their life span and functions. As buildings aged, they will be exposed to serious building defects and deterioration. To date, Malaysian government has been spending quite a huge amount of money in conserving heritage buildings in the country but the buildings keep deteriorating just few years after major conservation works on the buildings. To this regard, this paper is aimed at examining the maintenance management practice for heritage buildings in Malaysia. The study will focus mainly on maintenance units of gazette heritage buildings in Malaysia. In-depth literature review, questionnaire survey, semi-structured interviews followed by physical condition survey at selected sites will be used to achieve the set objectives. Among the expected outcomes are the listings of heritage building maintenance management best practice criteria. The outcomes would enable custodians of heritage sites to effectively evaluate, plan and implement their maintenance management programme, thereby able to expect savings in costs and time in future conservation works.
{"title":"Examining the maintenance management practices for conservation of heritage buildings in Malaysia","authors":"M. Sodangi, A. Idrus, Faris M. Khamidi","doi":"10.1109/NATPC.2011.6136372","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136372","url":null,"abstract":"Heritage buildings are regarded as highly valuable assets to the tourism industry because of their strong influence in motivating foreign tourists to visit the country. The tourism industry generate significant revenue (GNI of RM56.5 billion in 2010) to the Malaysian economy thereby making the tourism industry the second most important sectors of the economy. Foreign tourists are attracted to these buildings due to their cultural uniqueness, high historical and architectural values, and the strong desire to see something different. Hence, it became paramount to conserve these buildings in order to prolong their life span and functions. As buildings aged, they will be exposed to serious building defects and deterioration. To date, Malaysian government has been spending quite a huge amount of money in conserving heritage buildings in the country but the buildings keep deteriorating just few years after major conservation works on the buildings. To this regard, this paper is aimed at examining the maintenance management practice for heritage buildings in Malaysia. The study will focus mainly on maintenance units of gazette heritage buildings in Malaysia. In-depth literature review, questionnaire survey, semi-structured interviews followed by physical condition survey at selected sites will be used to achieve the set objectives. Among the expected outcomes are the listings of heritage building maintenance management best practice criteria. The outcomes would enable custodians of heritage sites to effectively evaluate, plan and implement their maintenance management programme, thereby able to expect savings in costs and time in future conservation works.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82806337","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 : 2011-09-01DOI: 10.1109/NATPC.2011.6136402
A. Abbas, A. Ibrahim, M. Nor, M. Aris
Sewage sludge is one of the largest contributors of waste material in Malaysia, and it indirectly elevates local environmental problems. The use of this waste material as an alternative fuel can be an effective solution, as it not only contributes as an energy source but also solves environmental issues related to sewage sludge disposal. To support the development of a fuel source from sewage sludge, a characterization procedure for its energy content and chemical composition becomes very important. The preliminary findings reported in this paper, for Malaysian domestic wastewater sewage sludge, found the following properties through the respective experiments: a) proximate analysis (moisture content 12%, volatile matter 48.86%, fixed carbon 19.32% and ash content 31.86%), ultimate analysis (Carbon 33.01%, Hydrogen 4.97%, Nitrogen 5.52% and Sulfur 1.18%) and bomb calorimeter (heating value 15.7 MJ/kg). An earlier developed empirical equation for predicting the heating value of domestic sewage sludge was validated with the experimental results from the current work and found to be in good agreement. The heating value of Malaysian sewage sludge can therefore be predicted with reasonable accuracy for the design of various energy conversion systems.
{"title":"Characterization of Malaysian domestic sewage sludge for conversion into fuels for energy recovery plants","authors":"A. Abbas, A. Ibrahim, M. Nor, M. Aris","doi":"10.1109/NATPC.2011.6136402","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136402","url":null,"abstract":"Sewage sludge is one of the largest contributors of waste material in Malaysia, and it indirectly elevates local environmental problems. The use of this waste material as an alternative fuel can be an effective solution, as it not only contributes as an energy source but also solves environmental issues related to sewage sludge disposal. To support the development of a fuel source from sewage sludge, a characterization procedure for its energy content and chemical composition becomes very important. The preliminary findings reported in this paper, for Malaysian domestic wastewater sewage sludge, found the following properties through the respective experiments: a) proximate analysis (moisture content 12%, volatile matter 48.86%, fixed carbon 19.32% and ash content 31.86%), ultimate analysis (Carbon 33.01%, Hydrogen 4.97%, Nitrogen 5.52% and Sulfur 1.18%) and bomb calorimeter (heating value 15.7 MJ/kg). An earlier developed empirical equation for predicting the heating value of domestic sewage sludge was validated with the experimental results from the current work and found to be in good agreement. The heating value of Malaysian sewage sludge can therefore be predicted with reasonable accuracy for the design of various energy conversion systems.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86773896","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 : 2011-09-01DOI: 10.1109/NATPC.2011.6136324
Fazal-e-Amin, A. Mahmood, A. Oxley, Fazal-E- Amin
The objectives of reusing software are to reduce the cost and amount of resources used to produce quality software that is on time. These objectives are achieved by reusing software artefacts. The reuse insensitive software development approaches, such as component based software development (CBSD) and software product lines (SPL) development, make use of reusable software assets. The use of open source software (OSS) is common in the software industry, especially in CBSD. However, recent research suggests the use of OSS in SPL. In this paper the results of a mixed method study are presented. The study focuses on identifying the factors affecting reusability of software in a reuse intensive software development environment. The first part of the study is based on interviews with experts and professionals working with OSS in a reuse intensive environment. The next part describes a survey is conducted to assess the importance of the factors. The procedures followed and results obtained of the both research activities are presented.
{"title":"A mixed method study to identify factors affecting software reusability in reuse intensive development","authors":"Fazal-e-Amin, A. Mahmood, A. Oxley, Fazal-E- Amin","doi":"10.1109/NATPC.2011.6136324","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136324","url":null,"abstract":"The objectives of reusing software are to reduce the cost and amount of resources used to produce quality software that is on time. These objectives are achieved by reusing software artefacts. The reuse insensitive software development approaches, such as component based software development (CBSD) and software product lines (SPL) development, make use of reusable software assets. The use of open source software (OSS) is common in the software industry, especially in CBSD. However, recent research suggests the use of OSS in SPL. In this paper the results of a mixed method study are presented. The study focuses on identifying the factors affecting reusability of software in a reuse intensive software development environment. The first part of the study is based on interviews with experts and professionals working with OSS in a reuse intensive environment. The next part describes a survey is conducted to assess the importance of the factors. The procedures followed and results obtained of the both research activities are presented.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89190320","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 : 2011-09-01DOI: 10.1109/NATPC.2011.6136266
M. Yusoff, J. Jaafar, A. Mahmood
Create a knowledge based community is a challenge. In connection, the researchers introduced a framework called "KM Hierarchical Framework" to perform Knowledge Management (KM) in Community College (CC). It is more challenging to realize the visualization of knowledge in community colleges. This paper aims to explore the potential of visualization for the Hierarchical Framework. The method used is to discuss two main issues, first the framework developed for the implementation of KMS at community colleges and second, appropriate matching of the existing conceptual framework for visual realize knowledge in KM framework developed by researches. Visualization is more apparent knowledge in KM especially for knowledge transfer and sharing. The results of the study found the integration between the KM framework and knowledge visualization framework is possible to make the knowledge in CC environment becomes visible.
{"title":"KM practice in Community College: Knowledge visualization in KM framework","authors":"M. Yusoff, J. Jaafar, A. Mahmood","doi":"10.1109/NATPC.2011.6136266","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136266","url":null,"abstract":"Create a knowledge based community is a challenge. In connection, the researchers introduced a framework called \"KM Hierarchical Framework\" to perform Knowledge Management (KM) in Community College (CC). It is more challenging to realize the visualization of knowledge in community colleges. This paper aims to explore the potential of visualization for the Hierarchical Framework. The method used is to discuss two main issues, first the framework developed for the implementation of KMS at community colleges and second, appropriate matching of the existing conceptual framework for visual realize knowledge in KM framework developed by researches. Visualization is more apparent knowledge in KM especially for knowledge transfer and sharing. The results of the study found the integration between the KM framework and knowledge visualization framework is possible to make the knowledge in CC environment becomes visible.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91454104","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 : 2011-09-01DOI: 10.1109/NATPC.2011.6136537
S. A. Musa, M. Awang, Noaman El-khatib, B. Demiral
This paper is an extension of previous work [1] and describe a two — dimensional (2-D) mathematical model, developed to simulate the heavy oil recovery process through the use of Heat Assisted WAG with Chemical Additives to reduce viscous fingering and gas override occurrence, which limits the efficiency of the WAG process. In this study we present a 2-D compositional mathematical model formulation and numerical solution for the process, with incorporating the important physical phenomena occurring during the process. The fully implicit finite difference approximation was used to convert the partial differential equation of the model into algebraic equations. The non linear Newtown-Raphson method was used for the solution of the resulting equations. The Jacobian of the residual equations was evaluated. The description of 2-D developed model discussed here will be useful to study the viscous fingering and gas override predictive models.
{"title":"Two-dimensional mathematical model for Heat Assisted WAG with Chemical Additives for heavy oil recovery","authors":"S. A. Musa, M. Awang, Noaman El-khatib, B. Demiral","doi":"10.1109/NATPC.2011.6136537","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136537","url":null,"abstract":"This paper is an extension of previous work [1] and describe a two — dimensional (2-D) mathematical model, developed to simulate the heavy oil recovery process through the use of Heat Assisted WAG with Chemical Additives to reduce viscous fingering and gas override occurrence, which limits the efficiency of the WAG process. In this study we present a 2-D compositional mathematical model formulation and numerical solution for the process, with incorporating the important physical phenomena occurring during the process. The fully implicit finite difference approximation was used to convert the partial differential equation of the model into algebraic equations. The non linear Newtown-Raphson method was used for the solution of the resulting equations. The Jacobian of the residual equations was evaluated. The description of 2-D developed model discussed here will be useful to study the viscous fingering and gas override predictive models.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90219604","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 : 2011-09-01DOI: 10.1109/NATPC.2011.6136401
A. O. Chikere, Hussain H. Alkayiem, Z. A. A. Karim
The concept of using flue gas waste heat as a backup in a solar chimney power plant is driven by the objective of solar chimney plant performance enhancement. This paper presents experimental results of thermal field of hybrid solar-flue-gas chimney power plant at different mode (solar mode, hybrid mode and flue gas mode). The experimental test rig consisted of two inclined absorber plate and diffuser surface with total area of 3.15 m2, flue gas channel (1m × 3m × 0.05m), greenhouse (air flow channel of 1m × 3m × 0.16m at inlet and 1m × 3m × 0.075m at exit), chimney of diameter 0.15m and height of 4m, flue gas inlet diffuser (1m × 0.3m × 0.05m) and flue-gas source (biomass burner coupled with centrifugal blower powered using a variable speed motor). The temperature distribution in the hybrid solar-flue gas chimney power plant test-rig was measured. Temperature difference between the chimney base (absorber plate exit air) and the ambient were studied which is the driving force in solar chimney power plant. On solar mode, the driving force (temperature difference between the absorber plate exit air and the ambient air) gave a maximum ΔT of 27.6 °C at irradiance of 797 W/m2. With flue gas as thermal backup during the day, maximum ΔT reached 38.1°C for inlet flue-gas temperature of 101.6 °C and irradiance of 672 W/m2, with flue gas as the only source of thermal energy (night mode), the temperature difference, ΔT, got up to 25.9 °C at a flue-gas inlet temperature of 107.6 °C. The solar mode experiment carried out after night mode experiment shows that the ΔT of the system the next day was enhanced as the temperature difference increased from sunrise contrary to the low temperature raise experienced on normal solar day.
{"title":"Thermal field study and analysis in hybrid solar flue gas chimney power plant","authors":"A. O. Chikere, Hussain H. Alkayiem, Z. A. A. Karim","doi":"10.1109/NATPC.2011.6136401","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136401","url":null,"abstract":"The concept of using flue gas waste heat as a backup in a solar chimney power plant is driven by the objective of solar chimney plant performance enhancement. This paper presents experimental results of thermal field of hybrid solar-flue-gas chimney power plant at different mode (solar mode, hybrid mode and flue gas mode). The experimental test rig consisted of two inclined absorber plate and diffuser surface with total area of 3.15 m2, flue gas channel (1m × 3m × 0.05m), greenhouse (air flow channel of 1m × 3m × 0.16m at inlet and 1m × 3m × 0.075m at exit), chimney of diameter 0.15m and height of 4m, flue gas inlet diffuser (1m × 0.3m × 0.05m) and flue-gas source (biomass burner coupled with centrifugal blower powered using a variable speed motor). The temperature distribution in the hybrid solar-flue gas chimney power plant test-rig was measured. Temperature difference between the chimney base (absorber plate exit air) and the ambient were studied which is the driving force in solar chimney power plant. On solar mode, the driving force (temperature difference between the absorber plate exit air and the ambient air) gave a maximum ΔT of 27.6 °C at irradiance of 797 W/m2. With flue gas as thermal backup during the day, maximum ΔT reached 38.1°C for inlet flue-gas temperature of 101.6 °C and irradiance of 672 W/m2, with flue gas as the only source of thermal energy (night mode), the temperature difference, ΔT, got up to 25.9 °C at a flue-gas inlet temperature of 107.6 °C. The solar mode experiment carried out after night mode experiment shows that the ΔT of the system the next day was enhanced as the temperature difference increased from sunrise contrary to the low temperature raise experienced on normal solar day.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83099732","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 : 2011-09-01DOI: 10.1109/NATPC.2011.6136285
A. M. Yeneneh, M. Thanabalan, U. M. N. E. Demerdash
Heavy metals are among the most toxic nuisances that pose a huge pressure on the environment. This in effect calls for for the development of a noble low cost and efficient technology for the removal of heavy metal from industrial effluents. In this particular research, lead (II) biosorption capacity of chemically modified lignocellulosic wastes (rice husk and sugarcane bagasse) has been studied. The two selected biosorbents are abundant and low cost biosorbents with promising potential to remove hazardous heavy metals from effluent streams. In the study, after executing rigorous investigation on the potential of several chemical modifiers, potassium hydrogen phosphate and sodium oxalate were found to be the best modifiers to improve the sorption capacity of rice husk and sugarcane bagasse. Besides, impact of particle size and pH has been studied. Characterization of the sorbent surfaces has been made before and after chemical modification and after sorption of heavy metals using furrier transform infra-red spectroscopy (FTIR). For the selected chemically modified sorbents of rice husk and sugarcane bagasse intensive study was performed on the sorption kinetics for varying metal and sorbent doses.
{"title":"Biosorption of heavy metals by potassium hydrogen phosphate and sodium oxalate modified lignocellulosic waste","authors":"A. M. Yeneneh, M. Thanabalan, U. M. N. E. Demerdash","doi":"10.1109/NATPC.2011.6136285","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136285","url":null,"abstract":"Heavy metals are among the most toxic nuisances that pose a huge pressure on the environment. This in effect calls for for the development of a noble low cost and efficient technology for the removal of heavy metal from industrial effluents. In this particular research, lead (II) biosorption capacity of chemically modified lignocellulosic wastes (rice husk and sugarcane bagasse) has been studied. The two selected biosorbents are abundant and low cost biosorbents with promising potential to remove hazardous heavy metals from effluent streams. In the study, after executing rigorous investigation on the potential of several chemical modifiers, potassium hydrogen phosphate and sodium oxalate were found to be the best modifiers to improve the sorption capacity of rice husk and sugarcane bagasse. Besides, impact of particle size and pH has been studied. Characterization of the sorbent surfaces has been made before and after chemical modification and after sorption of heavy metals using furrier transform infra-red spectroscopy (FTIR). For the selected chemically modified sorbents of rice husk and sugarcane bagasse intensive study was performed on the sorption kinetics for varying metal and sorbent doses.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81049560","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 : 2011-09-01DOI: 10.1109/NATPC.2011.6136343
A. Taiwo, K. Ku-Mahamud, Mohd Samsu bin Sajat
When certain nodes are heavily loaded with clients more than their capacity, slow connection in accessing network resources is a common complaint on such a computer network with switches as dominant network equipment. In this study, performance simulation model was developed and validated for a federal university in Malaysia. The effect of network parameters such as the processing time on throughput and utilization of the servers and switches on the network was investigated through simulations. In conclusion, results from the simulation model suggest some bottleneck nodes on the network.
{"title":"Locating bottleneck nodes on a large wired local area network","authors":"A. Taiwo, K. Ku-Mahamud, Mohd Samsu bin Sajat","doi":"10.1109/NATPC.2011.6136343","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136343","url":null,"abstract":"When certain nodes are heavily loaded with clients more than their capacity, slow connection in accessing network resources is a common complaint on such a computer network with switches as dominant network equipment. In this study, performance simulation model was developed and validated for a federal university in Malaysia. The effect of network parameters such as the processing time on throughput and utilization of the servers and switches on the network was investigated through simulations. In conclusion, results from the simulation model suggest some bottleneck nodes on the network.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89297063","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 : 2011-09-01DOI: 10.1109/NATPC.2011.6136364
N. S. Potty, Arazi B. Irdus, C. Ramanathan
Current trend of Design and Build (D&B) has gained popularity in the construction Industry due to its attractive financial aspects. The development projects are implemented by D&B for its special nature, crucial time and size. Many of this D&B projects had ended in the hands of contractors unable to proceed the projects within agreed time and price. Even some of those completed projects were committed to begin implementation without carrying any analyze of risks involved. They are basically committed by judgement and inadequate experience. The risk of time and cost overrun is more while committing to multiple simultaneous projects. Even though there were studies conducted for Risk management of projects and studies on contractors' view of D&B projects, so far there are no studies conducted on time and cost risks of D&B projects. In addition to study further for multiple projects. The aim of this study is to identify elements and procedures to analyse and overcome the risks of the important components of time and cost in management of multiple D&B bridge projects. The research has dual approach by conducting questionnaire survey and multiple case studies for the analysis and findings. This will encourage the industrial practitioners to prepare a practical risk response plan to complete the projects successfully.
{"title":"Case study and survey on time and cost overrun of multiple D&B projects","authors":"N. S. Potty, Arazi B. Irdus, C. Ramanathan","doi":"10.1109/NATPC.2011.6136364","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136364","url":null,"abstract":"Current trend of Design and Build (D&B) has gained popularity in the construction Industry due to its attractive financial aspects. The development projects are implemented by D&B for its special nature, crucial time and size. Many of this D&B projects had ended in the hands of contractors unable to proceed the projects within agreed time and price. Even some of those completed projects were committed to begin implementation without carrying any analyze of risks involved. They are basically committed by judgement and inadequate experience. The risk of time and cost overrun is more while committing to multiple simultaneous projects. Even though there were studies conducted for Risk management of projects and studies on contractors' view of D&B projects, so far there are no studies conducted on time and cost risks of D&B projects. In addition to study further for multiple projects. The aim of this study is to identify elements and procedures to analyse and overcome the risks of the important components of time and cost in management of multiple D&B bridge projects. The research has dual approach by conducting questionnaire survey and multiple case studies for the analysis and findings. This will encourage the industrial practitioners to prepare a practical risk response plan to complete the projects successfully.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90831437","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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