DSpaceCRIS@UNITENhttp://dspace.uniten.edu.my/jspuiThe DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material.Wed, 22 Jan 2020 23:38:28 GMT2020-01-22T23:38:28Z50161- A review on barriers in adopting healthcare information systemhttp://dspace.uniten.edu.my/jspui/handle/123456789/9349Title: A review on barriers in adopting healthcare information system
Authors: Hassan, N.H.; Ismail, Z.; Rahim, F.A.
Abstract: Different types of information system have been deployed in healthcare organization for the purpose of handling healthcare records in a more efficient way. Nevertheless, in deploying HIS, healthcare practitioners’ resistances to use the system while other barriers remains to be a crucial concern in effectively adopting HIS. This paper attempts to review the barriers towards adopting HIS. It starts with secondary data collection. Four barriers were identified through searching using selected keywords from on-line databases. Interviews with THREE (3) HIS experts were conducted. A conceptual model was then proposed depicting financial, data integration, organizational IT policy and user perception that may influence the adoption of HIS. This in-progress study will proceed in testing the proposed conceptual model using cross-sectional study in selected healthcare organizations in Malaysia. © 2014 American Scientific Publishers. All rights reserved.
Wed, 01 Jan 2014 00:00:00 GMThttp://dspace.uniten.edu.my/jspui/handle/123456789/93492014-01-01T00:00:00Z
- Proposed conceptual Iot-based patient monitoring sensor for predicting and controlling denguehttp://dspace.uniten.edu.my/jspui/handle/123456789/10702Title: Proposed conceptual Iot-based patient monitoring sensor for predicting and controlling dengue
Authors: Hassan, N.H.; Salwana, E.; Drus, S.M.; Maarop, N.; Samy, G.N.; Ahmad, N.A.
Abstract: Dengue is an epidemic-disease by mosquito-borne virus that spreads easily in geographically affected areas. Dengue outbreak management system has increasingly being developed in identifying and controlling the spread of dengue but with some limitation. The growing development of wearable Internet of Things (IoT), cloud computing, analytical approaches provide better alternative for dengue prediction and control. Previous literature collecting various parameters for analyzing dengue pattern. However, with the increasing number of analytical solution there is a need to investigate the high related parameters that should be use in analyzing and monitoring dengue outbreak before designing an IoT devices. Besides, there is a need for an alternative to ensure that early warning can be detected by monitoring the patient infected by the dengue, this paper aims to propose a conceptual IoT-based patient monitoring sensor for predicting and controlling dengue outbreak. Therefore, this paper provides a recent review of the latest methods and algorithms used to design wearable sensor for patient monitoring in dengue outbreak. Based on the review, this paper outlines the parameters that will be used in dengue for analyzing purposes. Finally, a conceptual IoT-based patient monitoring sensor were proposed comprising three different sensors to further work with analytical tools for dengue prediction pattern. The proposed conceptual design may help researcher to use the parameter identified for development of IoT sensor for dengue outbreak. © 2018 SERSC Australia.
Mon, 01 Jan 2018 00:00:00 GMThttp://dspace.uniten.edu.my/jspui/handle/123456789/107022018-01-01T00:00:00Z
- Calculating the Moduli Elasticity for Reinforced Concrete Using New Rule of Mixtures Approach for the Dam Structurehttp://dspace.uniten.edu.my/jspui/handle/123456789/11529Title: Calculating the Moduli Elasticity for Reinforced Concrete Using New Rule of Mixtures Approach for the Dam Structure
Authors: Zulkefli, Z.F.; Zawawi, M.H.; Hassan, N.H.; Zainol, M.R.R.M.A.; Abas, M.A.; Mazlan, A.Z.A.
Abstract: Dam is the important structure use for water domestic store, electricity power supply, irrigation and flood control. Dam deal with reinforced concrete as a main material in construction. the material considerable safe when ability to support external and internal load. the capability of dam material due to safety is effect by degradation. Prevention monitoring must be conducted for high risk structure. Thus, moduli elastic is a mechanical property to measure stiffness and had relationship between stress and strain of material. While non-destructive and destructive testing in site inspection does not include reinforce and give incorrect moduli elasticity. New approach rule of mixture (Rom) with solid work software refer to United States Department of the Interior Bureau of Reclamation (USBR) standard design for small dam, give reliability monitoring with true sustain modulus elasticity of dam structure time by time. the concrete properties for sustain of moduli elasticity standard type gravity concrete dam value is 20.684 GPa. If the value decreases drastically from the standard, high precaution must be taken. © 2018 The Authors, published by EDP Sciences.
Mon, 01 Jan 2018 00:00:00 GMThttp://dspace.uniten.edu.my/jspui/handle/123456789/115292018-01-01T00:00:00Z
- Effect of Step Height on the Aeration Efficiency of Cascade Aerator System Using Particle Image Velocimetryhttp://dspace.uniten.edu.my/jspui/handle/123456789/11528Title: Effect of Step Height on the Aeration Efficiency of Cascade Aerator System Using Particle Image Velocimetry
Authors: Azman, A.; Zawawi, M.H.; Hassan, N.H.; Abas, A.; Razak, N.A.; Mazlan, A.Z.A.; Mohd Remy Rozainy, M.A.Z.
Abstract: Aeration is an important parameter in water filtration system as it allows the transfer of oxygen to water through turbulence effect which subsequently increases air entrainment in the water. For water treatment application, aeration efficiency is measured to ensure continuous re-oxygenation of the unfiltered water. Aside from aeration, this paper also studies the flow patterns through the use of particle image velocimetry (PIV) setup. Through the use of real scale down physical model laboratory study is performed using PIV to obtain the velocity profile. These velocity profiles will then be used to calculate the aeration efficiency of the water in a cascade aerator system. Based on the findings, the aeration efficiency obtained from the PIV experiment has a maximum value at the lowest point of the cascade aerator system with a value of 0.0139 due to increase in mass flow rate as it moves through the steps with velocity of 0.418 m/s. Therefore, in the design of a cascade aerator system, it is advisable to increase the number of steps since it will increase the aeration efficiency of the system. © 2018 The Authors, published by EDP Sciences.
Mon, 01 Jan 2018 00:00:00 GMThttp://dspace.uniten.edu.my/jspui/handle/123456789/115282018-01-01T00:00:00Z
- Proposed proactive digital forensic approach for cloud computing environmenthttp://dspace.uniten.edu.my/jspui/handle/123456789/10523Title: Proposed proactive digital forensic approach for cloud computing environment
Authors: Samy, G.N.; Maarop, N.; Wong, D.H.; Rahim, F.A.; Hassan, N.H.; Perumal, S.; Magalingam, P.; Albakri, S.H.
Abstract: There are many challenges for the digital forensic process in the cloud computing due to the distinguished features of the cloud computing environment. Many of well-known digital forensic methods and tools are not suitable for cloud computing environment. The multitenancy, multistakeholder, Internet-based, dynamics expendability, and massive data, logs and datasets are examples of the cloud computing environment features that make conducting digital forensics in the cloud computing environment a very difficult task. Therefore, there is a need to develop an appropriate digital forensic approach for cloud computing environment. Thus, this paper proposed a proactive digital forensic approach for cloud computing environment. © 2018 Authors.
Mon, 01 Jan 2018 00:00:00 GMThttp://dspace.uniten.edu.my/jspui/handle/123456789/105232018-01-01T00:00:00Z
- The rise of crowdsourcing using social media platforms: Security and privacy issueshttp://dspace.uniten.edu.my/jspui/handle/123456789/11329Title: The rise of crowdsourcing using social media platforms: Security and privacy issues
Authors: Hassan, N.H.; Rahim, F.A.
Abstract: The increasing adoption of social media is a viable means in crowdsourcing. It can facilitate the connectivity of collaboration between different organisations, people and society to produce innovative and cost-effective solutions to many problems. Social media have opened up unprecedented new possibilities of engaging the public in meaningful ways through crowdsourcing. However, the growing number of security and privacy issues in social media may weaken the efficacy of crowdsourcing. This study aims to provide a basic understanding of security and privacy issues in line with the growth of crowdsourcing using social media platforms. This study also illustrates how crowdsourcing and social media data can lead to security and privacy issues in different environments. Lastly, this study proposes future works that may serve as direction for scholars to explore security and privacy in crowdsourcing through social media platforms. Secondary sources obtained from journals, conference papers, industry reports and books were reviewed to gather information. © 2017 Universiti Putra Malaysia Press.
Sun, 01 Jan 2017 00:00:00 GMThttp://dspace.uniten.edu.my/jspui/handle/123456789/113292017-01-01T00:00:00Z
- Maximum stress analysis for dam structure due to different magnitude scales of ground movementshttp://dspace.uniten.edu.my/jspui/handle/123456789/11071Title: Maximum stress analysis for dam structure due to different magnitude scales of ground movements
Authors: Zawawi, M.H.; Itam, Z.; Saleha, A.; Ramli, M.Z.; Hassan, N.H.; Zahari, N.M.; Salwa, A.; Muda, Z.C.
Abstract: This study is aimed to evaluate maximum stress analysis for dam stability due to ground movement on Chenderoh dam in Perak. The dam was constructed in the year 1930s, therefore it is important to examine the dam workability and integrity for the peoples to take caution and prepared for safety. Initially, the analysis using ABAQUS is to verify the available data obtained from Structural Earthquakes Research Malaysia. The data available is the maximum stress of 108.67 kN/m2 for seismic load of 0.16g. Validation for this data after running the ABAQUS program shows that it is in good agreement with the available data, that is the result at 0.16g, the maximum stress is 112 kN/m2. Using this data for example concrete grade 20 N/m2, the maximum stress at 0.16G, 0.20g and 0.25g are analyzed. The significant of this study is that at 0.25g seismic acceleration, the dam is still stable as the stress at 0.25g does not exceed the available maximum stress of the material. © 2018 Author(s).
Mon, 01 Jan 2018 00:00:00 GMThttp://dspace.uniten.edu.my/jspui/handle/123456789/110712018-01-01T00:00:00Z
- A review: Fundamentals of computational fluid dynamics (CFD)http://dspace.uniten.edu.my/jspui/handle/123456789/11456Title: A review: Fundamentals of computational fluid dynamics (CFD)
Authors: Zawawi, M.H.; Saleha, A.; Salwa, A.; Hassan, N.H.; Zahari, N.M.; Ramli, M.Z.; Muda, Z.C.
Abstract: Computational fluid dynamics (CFD) provides numerical approximation to the equations that govern fluid motion. Application of the CFD to analyze a fluid problem requires the following steps. First, the mathematical equations describing the fluid flow are written. These are usually a set of partial differential equations. These equations are then discretized to produce a numerical analogue of the equations. The domain is then divided into small grids or elements. Finally, the initial conditions and the boundary conditions of the specific problem are used to solve these equations. All CFD codes contain three main elements: (1) A pre-processor, which is used to input the problem geometry, generate the grid, and define the flow parameter and the boundary conditions to the code. (2) A flow solver, which is used to solve the governing equations of the flow subject to the conditions provided. There are four different methods used as a flow solver: (i) finite difference method; (ii) finite element method, (iii) finite volume method. (3) A post-processor, which is used to massage the data and show the results in graphical and easy to read format. © 2018 Author(s).
Mon, 01 Jan 2018 00:00:00 GMThttp://dspace.uniten.edu.my/jspui/handle/123456789/114562018-01-01T00:00:00Z
- Calculating the Moduli Elasticity for Reinforced Concrete Using New Rule of Mixtures Approach for the Dam Structurehttp://dspace.uniten.edu.my/jspui/handle/123456789/11107Title: Calculating the Moduli Elasticity for Reinforced Concrete Using New Rule of Mixtures Approach for the Dam Structure
Authors: Zulkefli, Z.F.; Zawawi, M.H.; Hassan, N.H.; Zainol, M.R.R.M.A.; Abas, M.A.; Mazlan, A.Z.A.
Abstract: Dam is the important structure use for water domestic store, electricity power supply, irrigation and flood control. Dam deal with reinforced concrete as a main material in construction. the material considerable safe when ability to support external and internal load. the capability of dam material due to safety is effect by degradation. Prevention monitoring must be conducted for high risk structure. Thus, moduli elastic is a mechanical property to measure stiffness and had relationship between stress and strain of material. While non-destructive and destructive testing in site inspection does not include reinforce and give incorrect moduli elasticity. New approach rule of mixture (Rom) with solid work software refer to United States Department of the Interior Bureau of Reclamation (USBR) standard design for small dam, give reliability monitoring with true sustain modulus elasticity of dam structure time by time. the concrete properties for sustain of moduli elasticity standard type gravity concrete dam value is 20.684 GPa. If the value decreases drastically from the standard, high precaution must be taken. © 2018 The Authors, published by EDP Sciences.
Mon, 01 Jan 2018 00:00:00 GMThttp://dspace.uniten.edu.my/jspui/handle/123456789/111072018-01-01T00:00:00Z
- Computational fluid dynamic analysis at dam spillway due to different gate openingshttp://dspace.uniten.edu.my/jspui/handle/123456789/11488Title: Computational fluid dynamic analysis at dam spillway due to different gate openings
Authors: Zawawi, M.H.; Aziz, N.A.; Radzi, M.R.M.; Hassan, N.H.; Ramli, M.Z.; Zahari, N.M.; Abbas, M.A.; Saleha, A.; Salwa, A.; Muda, Z.C.
Abstract: This paper presents a case study of dam where computational fluid dynamic (CFD) modelling is applied to simulate the three-dimensional (3D) flow hydraulics using computational aided program using ANSYS in order to analyse the existing fluid dynamic from reservoir to spillway of the dam due to long exposure to high pressure of water and high velocity of discharge. The purpose of this study is to ensure efficiency, reliability and safety of the dam generally and specifically on the spillway. Based on the findings, a model that have a worst condition based on both analysis is a model that have bigger area of the opening gate. This is because of the huge amount of the water release from the upstream to the downstream and produce a high value of water velocity and high impact from the water that fall from upstream towards the dam spillway. In order to avoid any sudden huge amount of the water release, the water level of the reservoir need to be check frequently. The water release from the dam need to be control to avoid any disaster to the environment and the dam structure. © 2018 Author(s).
Mon, 01 Jan 2018 00:00:00 GMThttp://dspace.uniten.edu.my/jspui/handle/123456789/114882018-01-01T00:00:00Z
- Condition assessment on hydropower dam based on simulation approach: A reviewhttp://dspace.uniten.edu.my/jspui/handle/123456789/11487Title: Condition assessment on hydropower dam based on simulation approach: A review
Authors: Salwa, A.; Zawawi, M.H.; Ramli, M.Z.; Zahari, N.M.; Saleha, A.; Hassan, N.H.; Radzi, M.R.M.; Sidek, L.M.; Muda, Z.C.
Abstract: The understanding of dam structure condition under the static and dynamic should be aware as to fulfils the criteria of safety to the public. Furthermore, it is crucial to understand the parameter of the condition assessment of hydropower dam. Sliding failure, overturning failure, concrete deterioration, concrete distress, internal failure and foundation failure are the parameter induced to damage the dam stability. However, due to some areas on dam structure are difficult to be assessed such as its penstock and spillway, development condition assessment rating on structural condition for hydropower dam based on fluid-structure interaction (FSI) simulation approach is vital since it is impossible to stop the dam operation as it is needed in generating electricity. The present study aimed is to summarize the collection of various papers that related to dam analysis as to develop the condition assessment rating on structural condition for hydropower dam based on fluid-structure interaction (FSI) simulation approach. © 2018 Author(s).
Mon, 01 Jan 2018 00:00:00 GMThttp://dspace.uniten.edu.my/jspui/handle/123456789/114872018-01-01T00:00:00Z
- Effect of Step Height on the Aeration Efficiency of Cascade Aerator System Using Particle Image Velocimetryhttp://dspace.uniten.edu.my/jspui/handle/123456789/11108Title: Effect of Step Height on the Aeration Efficiency of Cascade Aerator System Using Particle Image Velocimetry
Authors: Azman, A.; Zawawi, M.H.; Hassan, N.H.; Abas, A.; Razak, N.A.; Mazlan, A.Z.A.; Mohd Remy Rozainy, M.A.Z.
Abstract: Aeration is an important parameter in water filtration system as it allows the transfer of oxygen to water through turbulence effect which subsequently increases air entrainment in the water. For water treatment application, aeration efficiency is measured to ensure continuous re-oxygenation of the unfiltered water. Aside from aeration, this paper also studies the flow patterns through the use of particle image velocimetry (PIV) setup. Through the use of real scale down physical model laboratory study is performed using PIV to obtain the velocity profile. These velocity profiles will then be used to calculate the aeration efficiency of the water in a cascade aerator system. Based on the findings, the aeration efficiency obtained from the PIV experiment has a maximum value at the lowest point of the cascade aerator system with a value of 0.0139 due to increase in mass flow rate as it moves through the steps with velocity of 0.418 m/s. Therefore, in the design of a cascade aerator system, it is advisable to increase the number of steps since it will increase the aeration efficiency of the system. © 2018 The Authors, published by EDP Sciences.
Mon, 01 Jan 2018 00:00:00 GMThttp://dspace.uniten.edu.my/jspui/handle/123456789/111082018-01-01T00:00:00Z
- Fluid-structure interactions study on hydraulic structures: A reviewhttp://dspace.uniten.edu.my/jspui/handle/123456789/11500Title: Fluid-structure interactions study on hydraulic structures: A review
Authors: Zawawi, M.H.; Hassan, N.H.; Ramli, M.Z.; Zahari, N.M.; Radzi, M.R.M.; Saleha, A.; Salwa, A.; Sidek, L.M.; Muda, Z.C.; Kamaruddin, M.A.
Abstract: Fluid-structure interactions (FSI) occurs when fluid flow causes deformation of the structure and in turn, the deformation changes the boundary conditions of the fluid flow. FSI is considered essential in the design of many engineering systems. The example of application FSI to engineering system is hydraulic structures. Hydraulic structures are purposely created and built to perform controlled, conveyed and contained water. It will be more useful to consumers if it is functioning satisfactorily. In order to study the effect of the FSI on hydraulic structure, computational fluid dynamic (CFD) is used to analyse the data. The main objective of this paper is to review the studies conducted on FSI within hydraulic structures. The study of FSI on hydraulic structure is devoted to the solution of the equation of fluid flow through the use of computer. © 2018 Author(s).
Mon, 01 Jan 2018 00:00:00 GMThttp://dspace.uniten.edu.my/jspui/handle/123456789/115002018-01-01T00:00:00Z
- Maximum stress analysis for dam structure due to different magnitude scales of ground movementshttp://dspace.uniten.edu.my/jspui/handle/123456789/11459Title: Maximum stress analysis for dam structure due to different magnitude scales of ground movements
Authors: Zawawi, M.H.; Itam, Z.; Saleha, A.; Ramli, M.Z.; Hassan, N.H.; Zahari, N.M.; Salwa, A.; Muda, Z.C.
Abstract: This study is aimed to evaluate maximum stress analysis for dam stability due to ground movement on Chenderoh dam in Perak. The dam was constructed in the year 1930s, therefore it is important to examine the dam workability and integrity for the peoples to take caution and prepared for safety. Initially, the analysis using ABAQUS is to verify the available data obtained from Structural Earthquakes Research Malaysia. The data available is the maximum stress of 108.67 kN/m2 for seismic load of 0.16g. Validation for this data after running the ABAQUS program shows that it is in good agreement with the available data, that is the result at 0.16g, the maximum stress is 112 kN/m2. Using this data for example concrete grade 20 N/m2, the maximum stress at 0.16G, 0.20g and 0.25g are analyzed. The significant of this study is that at 0.25g seismic acceleration, the dam is still stable as the stress at 0.25g does not exceed the available maximum stress of the material. © 2018 Author(s).
Mon, 01 Jan 2018 00:00:00 GMThttp://dspace.uniten.edu.my/jspui/handle/123456789/114592018-01-01T00:00:00Z
- Prediction of the Flow-Induced Vibration Response of the Chenderoh Dam Left Bank Sectionhttp://dspace.uniten.edu.my/jspui/handle/123456789/11106Title: Prediction of the Flow-Induced Vibration Response of the Chenderoh Dam Left Bank Section
Authors: Ghazali, M.H.M.; Zawawi, M.H.; Hassan, N.H.; Radzi, M.R.M.; Mazlan, A.Z.A.; Abas, M.A.; Zainol, M.R.R.M.A.
Abstract: Flow-induced vibration is a common phenomenon that happened in any of dam structures during the operational condition. This includes the effect of water spilling from the upstream to the downstream of the dam due to high water volume at the upstream side. the release of water from the dam can be beneficial in generating the electricity source to the surrounding areas. However, in some cases, the spill of water can induced the significant vibration effects to the dam structure. In this study, the prediction of the flow-induced vibration response at the left bank section of the real scale Malaysian Chenderoh Dam model is simulated using the ANSYS software. the input force disturbances from the flow of the water at the left bank section during the normal water spilling condition is investigated. the results of frequency domain response and operational defection shapes (ODS) from the effect of flow-induced vibration are compared with the natural frequencies and mode shapes of the dam. From the results, the transient vibration responses due to the flow of water happened at the frequency of 13.3 Hz while the natural frequency of the left bank section occurred at 52.3 Hz, which indicates that there is no resonance phenomenon for the normal case of water spilling at the left bank section of the dam structure. This result is useful for the dam operation section in order to avoid any disaster of the dam structure. © 2018 The Authors, published by EDP Sciences.
Mon, 01 Jan 2018 00:00:00 GMThttp://dspace.uniten.edu.my/jspui/handle/123456789/111062018-01-01T00:00:00Z
- Structural Dynamic Analysis of the Chenderoh Dam Sector Gate Sectionhttp://dspace.uniten.edu.my/jspui/handle/123456789/11105Title: Structural Dynamic Analysis of the Chenderoh Dam Sector Gate Section
Authors: Ghazali, M.H.M.; Zawawi, M.H.; Hassan, N.H.; Radzi, M.R.M.; Mazlan, A.Z.A.; Abas, M.A.; Zainol, M.R.R.M.A.
Abstract: The dynamic characteristics such as natural frequencies, mode shapes and frequency response function (FRF) are the important characteristics to be investigated to access the level of durability of any dam structures. These characteristics are important since it will be the reference information for any operational methods to be used for the dam structures. In this study, one of the real dam (i.e., Chenderoh Dam) that available in Malaysia is taken into consideration, where the dynamic analysis of the sector gate section of the dam structure is investigated. the real scale of the sector gate section is measured on site and modelled into the CAD software with the consideration of real build-in materials. Then, the finite element (FE) model is constructed in ANSYS software with the required boundary condition and meshing sensitivity analysis. From the result of modal analysis, 30 natural frequencies are determined in the range of 0.5904 Hz to 8.471 Hz together with the mode shapes but only the most significant natural frequencies will be shown in this paper. In addition, all three axes of the FRF graphs show an agreement for the highest natural frequency value at 7.95 Hz, where the maximum deflection occurred in x axis direction with 2.03 × 10-7 m. © 2018 The Authors, published by EDP Sciences.
Mon, 01 Jan 2018 00:00:00 GMThttp://dspace.uniten.edu.my/jspui/handle/123456789/111052018-01-01T00:00:00Z