Fathoni Usman

Universiti Tenaga Nasional

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Siti Noratiqah Mohamad Deros

Universiti Tenaga Nasional

Sumie Amariena Hamim

Universitas Indo Global Mandiri

Syamimi Mohd Norzeli

Sultan Zainal Abidin University

Norashidah Md Din

Universiti Tenaga Nasional

Tri Basuki Kurniawan

Universitas Bina Darma

Ruqayyah Hashim

Universiti Tenaga Nasional

Rohayu Che Omar

Universiti Tenaga Nasional

M.N.M. Ansari

Universiti Tenaga Nasional

Nor Azura Othman

Universiti Tun Abdul Razak

Lee Woen Ean

Universiti Tenaga Nasional

Cooperative Institutions

Universiti Tenaga Nasional

Tenaga Nasional Berhad (Malaysia)

Universiti Teknologi MARA

Universiti Teknologi MARA System

National University of Malaysia

Universitas Indo Global Mandiri

Sultan Zainal Abidin University

Indian Institute of Science Bangalore

Edith Cowan University

National Technical University of Athens

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Effect of fly ash on mechanical properties and microstructural behaviour of injected moulded recycled polypropylene composites

Construction and Building Materials (2024)

Nur Hazzarita Mohd Nasir Fathoni Usman Lee Woen Ean M.N.M. Ansari Mohammad Sofyan

Polypropylene

10.1016/j.conbuildmat.2024.138130

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Citations (3)

Land Subsidence Susceptibility Projection for Palembang Slum Area by Complex MCDM-AHP Technique

Journal of Engineering and Technological Sciences (2022)

Siti Noratiqah Mohamad Deros Norashidah Md Din Syamimi Mohd Norzeli Rohayu Che Omar Fathoni Usman

Land subsidence is a geomorphological event that affects Earth’s structure and physiognomy. This phenomenon occurs when the groundwater volume changes and results in the movement and sinking of sediment. Several studies have been conducted to identify major causes or factors that may lead to land subsidence. It was found that land subsidence intensity is influenced by several factors, i.e. terrain slope and aspect, land use, soil moisture content, and distance to a river. Population density contributes to continuous changes in land use. Deep investigation of factors that contribute to land subsidence such as population density is important. This study investigated the relationship between land subsidence and population density contributing to continuous land-use changes. The study area was a highly populated slum area along the Musi River in Palembang, Indonesia. Factors that have high contribution to land subsidence were considered in developing a land subsidence susceptibility map. Susceptibility analysis was done using the Analytical Hierarchy Process (AHP) method. Land subsidence features were associated with slum features and the result revealed a significantly high correlation (r = 0.844) between actual land subsidence areas and the developed susceptibility map.

Slum

10.5614/j.eng.technol.sci.2022.54.1.4

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Citations (4)

Integration of Spherical 360° Panoramic Virtual Tour with Assessment Data for Risk Assessment and Maintenance of Tunnel and Cavern

Applied Mechanics and Materials (2016)

Fathoni Usman Nursimaa Banuar Tri Basuki Kurniawan Mohd Nadzari Ismail Nor Azura Othman

Construct a tunnel is a challenge to nature. It releases stress by drilling and sometimes blasting different rock formation. Once it is constructed, existence of water seepage infiltrated through weakest formation of rock has developed distresses that become one of common problems in underground structure. This paper presents development a web based distress mapping application using visual assessment, non-destructive assessment and utilizing 360° spherical panoramic images to give real visualization experience tunnel and cavern of underground hydroelectric power plan. In developing the application, the virtual tour engine from krpano and scripting language Java Script were utilized. Statistical analysis on the condition of the distress was also discussed. The developed system is used to improve human experience on the assessment processes at location of distresses. By using this system, the assessment can be recorded into the database easily using any smart device with HTML browser capability and assist safety officer, engineers and tunnel owner to decide appropriate mitigation of maintenance and/or repair in order to prolong service life of the tunnel and caver of the hydroelectric power plan.

Hydroelectricity

Interface (matter)

Officer

10.4028/www.scientific.net/amm.858.50

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Citations (2)

Determining Health Index of Transmission Line Asset using Condition-Based Method

Resources (2019)

Ruqayyah Hashim Fathoni Usman Intan Nor Zuliana Baharuddin

Assessment of overhead transmission lines is a crucial task in the asset management of electric power infrastructures. Any assets have different life spans and require proper assessment and maintenance actions. Disruption of the power supply may cause national problems. Therefore, it is essential to ensure that the distribution and transmission of electric power from the power plant to end consumers is achieved without fail. This paper presents a proposed framework of health index of the transmission line using a condition-based method. This study refers to previous methods in determining the health index of electrical power assets, mainly transformer and transmission line. Three main indicators contributed and need to be considered in determining the health index. The indicators are structural, electrical and environmental aspects. The health index of these three indicators with 14 items was calculated, and the overall health index of the transmission line determined. From the case study conducted for this study, the specific location, tower and item can be acknowledged that cause the failure and the service interruption of energy supply to the consumer. It is found that the implementation of the health index calculation gives a more accurate description of the health status of a transmission line. The health index can be used for the prioritizing of maintenance, refurbishment or replacement to avoid disruption.

Power transmission

10.3390/resources8020080

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Citations (18)