Mohd Umzarulazijo UmarUniversiti Sains Malaysia | USM · School of Housing, Building and Planning
Mohd Umzarulazijo Umar
University Science Malaysia
About
56
Publications
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192
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Introduction
Mohd Umzarulazijo Umar is a Professional Technologist (Ts.) in Building Construction (BC), PhD in Strategic Management, and a Consultant (Building, Material and Tourism). Particular interest in cultural heritage, including natural heritage. Expanding his enthusiasm in the area, he integrates his patient by registering with the International Committee on Monuments and Sites (ICOMOS) as an international member (ICOMOS: MYS 37858) and a member of the UNESCO Organization.
Publications
Publications (56)
Southeast Asia’s forest and green areas are undergoing a fast and substantial experienced sudden change, depending on complex area management issues resulting in deforestation, including Danum Valley, Sabah, Malaysia. The study purposely to determine the land-use pattern at Danum Valley through a geospatial approach. GIS data was collected from gov...
Carbon footprint is one of the critical elements in assessing the level of sustainability of an urban area or forest area. Cities are a vital contributor to climate change with 75 percent of global carbon emissions are from cities. Transportation, buildings and urban activities are among the most critical contributors of greenhouse carbon emission...
The current research aimed to find out the effect of tourism development on economic growth in Pakistan for the period (1995 to 2017) by using Canonical Regression Analysis (CCR) and Dynamic Least Square (DOLS) method. In addition, a unit root test is used to find out the static nature of the variables, and for the robust check, the authors utilize...
National parks serve as rural ecotourism attractions, the management of which must strike a balance between economic productivity and the protection of the park’s natural value. Faced with the increased pressure of rising visitor numbers park management must give greater consideration to the tourist experience and tourist satisfaction. This paper e...
Tourism contributes to the conservation and protection of mountainous areas, and even the characteristics and activities of tourism also affect the environmental sustainability of an area. This study aims to identify tourist characteristics, their opinion towards a sustainable environment, their activities conducted at the park and environmental im...
National parks serve as rural ecotourism attractions, even though this area is very fragile. Therefore, conservation management must be implemented to ensure the balance of the environment is maintained. This study aims to study the relationship between park management, issues and tourist satisfaction in a protected area, Kinabalu Park. Moreover, t...
In this work, Epoxidized natural rubber/sawdust short fiber (ENR-50/ SD) composites at different fiber content (5, 10, 15 and 20 phr) and size (fine size at 60-100 μm and coarse size at 10-20 mm) were prepared using the two-roll mill and electrical-hydraulic hot press machine respectively. Curing characteristics, water uptake, tensile, morphologica...
Effective conservation measures are essential to protect nature and wildlife which act as flagship attraction for ecotourism to flourish. The study focuses on conservation management of natural forests and wildlife by multiple stakeholders in Lower Kinabatangan Sabah. Rare and endangered wildlife species is the main attraction for ecotourism develo...
The book of manual maintenance produces to serve the sole purpose of providing the theory and practical knowledge for users in dealing with defect issues in timber base building.
Malaysia experiences hot and humid weather throughout the year, giving the building materials a particular challenge to withstand such a tropical environment, especially for buildings over the age of 25. The purpose of this study is to find out the true nature of the spalling problem in the study. It is carried out using three planned methods, name...
The timber or wooden base is a significant material in traditional Malay houses from structure to architecture craftsmanship of the buildings. Due to the material natural condition, the problem perceives to be very mainly dealing with the joint wood base treat, namely rot, decay, and defective material. The study's purpose is to identify existing d...
In Malaysia, conservation of heritage buildings is initiated by the government and private sector. The establishment of National Heritage Department of Malaysia in year 2006 has shown the government’s effort to appreciate the existing of heritage buildings in Malaysia. The Department will ensure every requirement in National Heritage Act 2005 will...
This study is about the effect of alkaline treatment on bamboo filler reinforced with recycle high density polyethylene (rHDPE) composites. The alkaline treatment was done by sodium hydroxide (NaOH) at three different concentrations (2.5 wt.%, 5.0 wt.% and 7.5 wt.%) for two hours at room temperature. The bamboo filler and rHDPE was compound with th...
The study aim to improve the mechanical properties of recycled high density polyethylene (rHDPE) reinforced with bamboo filler (BF) by incorporating support of ionic liquids (ILs). The rHDPE/BF composites were produced by using injection molding process with different types of ILs in imidazolium based at three concentrations which is 0.2, 0.4 and 0...
In this research, the non-woven kenaf fibre mat reinforced polypropylene composites (NWKFMRPP) were fabricated by the compression moulding method with different layers of kenaf fibre (KF) mat. The pure polypropylene (PP) matrix was used to prepare the composites to serve as control. Two types of maleic anhydride grafted polypropylene (MAPP) couplin...
Injection moulding had been one of the best choices in plastic manufacturing industry as it manage produced complex-shaped plastic parts in very short cycle times. This article is concerned with the flexural properties of low-density polyethylene (LDPE) reinforced with rice husk (RH) filler specifically for injection moulded parts. In this study, t...
In this article, wood plastic composite (WPC) is a composite material made up from bamboo as filler (BF) and high-density polyethylene and recycle high density polyethylene (HDPE) plastic as matrix. This research was conducted in order to investigate the mechanical properties of HDPE/BF and rHDPE/BF composites with different filler loading (5 wt.%,...
This study main objective is to compare the effect of different concentration on surface treatments of natural fibrous material, bamboo filler (BF) by using acetic acid (CH3COOH). The application of surface treatment on natural fibrous material can improve the compatibility with polymer matrix material. Different concentration on surface treatment...
In this study, the ionic liquid as additive on recycle high density polyethylene/bamboo filler (rHDPE/BF) using different concentration (0.2 wt.%, 0.4 wt.% and 0.6 wt.%) of 1-ethyl-3-methylimidazolium thiocyanate (EMImSCN) and 1-methyl-3-octylimidazolium chloride (OMImCl) ionic liquid was performed. The bamboo filler were reinforced with in rHDPE m...
The effect of electron beam irradiation on the properties of LLDPE/CY biocomposites were studied. In powder form, CY was mixed with linear low-density polyethylene (LLDPE), prior to being fed into a twin-screw extruder and subsequently into an injection moulding machine to produce LLDPE/CY biocomposite dumbbell specimens. LLDPE/CY biocomposites wit...
The potential of Cyperus Odoratus (CY) as a filler was studied. In powder form, CY was mixed with linear low density polyethylene (LLDPE), prior to being fed into a twin screw extruder and subsequently into an injection moulding machine to produce LLDPY/CY biocomposite dumbbell specimens. LLDPE/CY biocomposites with composition ratios of 5% to 20 w...
Road and highway observation is critical for road engineers to determine the information of the highway itself for the needs of maintenance, rehabilitation and even in construction. This research reviews the efficiency of information of roads and highway by visual and experience. The mean of visual includes the usage of Unmanned Aerial Vehicles (UA...
Kenaf fibre mat (KFM) reinforced polypropylene (PP) biocomposites have been prepared using sandwich structure and hot press moulding technique. To enhance the interfacial bonding between PP and kenaf fibre, KFM was chemically treated with two different chemicals which are 5% hydrogen peroxide and 2% silane. Fourier transform infrared (FTIR) was use...
The potential of Date Seeds (DS) as a filler was studied. DS were collected, washed and grinned. Three different DS were used, i.e. coarse size (between 700-1000 µm), medium size (between 250-500 µm) and fine size (between 0-125 µm). After that, DS was mixed with linear low-density polyethylene (LLDPE) ar different DS content i.e. 5, 10, 15, and 20...
In this study, the effect of milling speed and compaction pressure on the densification and morphology of CuZn-Gr composite was evaluated. The composite was prepared by using powder metallurgy technique. The effect of the microstructural and compaction were determined based on different milling speed in thus research. The different milling speeds t...
This work evaluated the effect of different loading and size of date seeds (DS) on some mechanical properties of LLDPE/DS composites. Three different size (125 – 250 mm, 250-500 mm, and 500 - 1000 □m) and four different size loading (5, 10, 15, 20 wt%) of DS were used in this work. Flexural and Impact properties were evaluated when DS added to the...
The biocomposites from linear low-density polyethylene (LLDPE) and date seeds (DS) were successfully synthesized using extrusion and injuction molding process respectively. The effects of different Sodium Hydroxide (NaOH) concentration (3, 6, and 9 wt.%) on the structural properties of LLDPE/DS composites were invistigated using FTIR and Gel Conten...
![Compressive strength of concrete brick [8].](profile/Nurfadzillah-Ishak/publication/340179844/figure/tbl1/AS:1060574398017537@1629872049867/Compressive-strength-of-concrete-brick-8_Q320.jpg)
Coal and coal-fired power plants are crucial for supplying global energy demand. However, coal-fired power plants produce significant quantities of bottom ash as by-products. Through these power plants, it produces approximately 18 tons of bottom ash each day. Malaysia has the challenging task of dealing with an increasing amount of waste generated...
Nowadays, there are lot of concrete waste were produced from demolition, destruction and others. The usage of concrete is not environmentally friendly due to depletion of reserve natural resources, high energy consumption and disposal issues. Construction debris give a large fraction of solid waste disposal problem, and constitutes the large compon...
Injection moulding is one of the most widely used processes in manufacturing plastic products, which has developed into a mature technology. Injection moulding is greatly preferred in manufacturing industry because it can produce complex-shaped plastic parts with good dimensional accuracy in very short cycle times. This article is concerned with th...
This article is concerned with the impact properties of rice husk (RH) reinforced low density polyethylene (LDPE) specifically for injection moulded parts. In this study, the RH/LDPE composites with different loadings of 5, 10, and 15 wt.% rice husks were feed into injection moulding machine and the moulded parts were tested using compact Charpy im...
This study aims to characterize the physical properties of kenaf fibre mat (KFM) reinforced unsaturated polyester (UPE) composites by introducing graphene as nano filler. The composites were prepared by using hand lay-up and compression moulding techniques. To improve the interfacial adhesion between fibre and matrix, the KFM was chemically treated...
In this work, the influences of different concentration of sodium hydroxide (NaOH) (3, 6 and 9 wt.%) on the flexural and impact properties of linear low-density polyethylene / date seeds (LLDPE/DS) composites were examined. The LLDPE / DS ratio was fixed at 90/10 wt.% and the size of DS particles was measured at 125 - 250 micro m. The process used...
This research is intended to identify the types of defects that existed in heritage buildings and to identify the degree of errors that are being investigated in them. Nine (9) heritage buildings from eight (8) states in Malaysia have been reviewed and systematic visual evaluation approaches have been applied to the main building consisting of seve...
Adaptive reuse is a process of rebranding heritage buildings without jeopardizing their authentic values. There is a need for a proper guideline for authorities and private sectors to adaptively reuse a building. With this in mind, this paper evaluated and compared the perceptions of two groups of stakeholders in the conservation industry (manageri...
The purpose of this paper is to acquire a better understanding of the history, background, process and impact of the restoration of St. Joseph’s Novitiate, and it integration into Gurney Paragon Mall. St. Joseph’s Novitiate has significant historical, architectural, aesthetic, archaeological, spiritual, social, political and economic value, and as...
Defects and damage to heritage buildings constitute a significant problem to be understood and addressed by the organisation. Lack of information on defects towards the heritage buildings results in decisions or actions made by the authorities not meeting the proper targets. Therefore, this research purposely to identify the types of defects inhere...
The dampness is a significant threat in the heritage building and a leading factors to the degradation and dilapidated building. The scientifically measured need to be implemented in mitigating such issues. Advance understanding of heritage building condition is a must in mitigating to prolong the building life cycle. The study purpose is to measur...
Purpose: This paper aims to investigate the perceptions of indigenous people towards tourism development and the factors that influence their perceptions of the economic, social and environmental impacts of tourism. Design/methodology/approach: This study will focus on the perceptions of an aboriginal group indigenous to Malaysia, and draws upon a...
The paper purposely to explore, review and confirm the keys factors that have enormous impact and influence on the conservation of heritage building in Malaysia. A focus on developing an adaptive reuse (AR) model as a decision-making tool in enhancing the heritage building performance by equipping substantial information to the relevant organizatio...
The decline in neighbourhood quality results in neighbourhood dissatisfaction which contributes the mobility intention among households. This study aims to investigate the mobility intention among families of low and medium income group in Penang and to examine the potential of neighbourhood attributes in improving their lives by determining the ma...
This study investigates the participation of indigenous communities in conservation and tourism development projects, specifically focusing on the native people of Sabah, Malaysia. Using the motivation, opportunity, and ability (MOA) model, we conceptualize a framework for understanding the factors that influence the participation choices of this c...
The primary objective of this research is to literately identified factor influence directly and indirectly in a decision made by the organisation in the heritage building. The preliminary finding from the literature review revealed ten key factors that can be considered to enhance the quality of the decision making by the relevant organisation whi...
The awareness towards the conservation is tremendously increased according to a campaign, improvement and contribution by state and federal authority due to a better understanding of the infinite value of heritage building. Importantly the relevant body must be equipped with precise and concise information in handling heritage building entirely. Qu...
This paper highlights issues and challenges the involvement of local indigenous peoples in conservation and sustainable tourism at Lower Kinabatangan Sabah (LKS), Malaysia. As tourism in rural areas is interrelated with indigenous peoples, it is crucial to ensure that these people are not exploited, their culture and heritage is well protected and...
This paper will focus on SWOT analysis approach to observe the participation of indigenous people on conservation and tourism. As studies on indigenous peoples, its interrelation with tourism and conservation in Lower Kinabatangan Sabah (LKS) were limited, this study utilized the beginning of researches conducted in LKS to the recent (1996 to 2014)...
This paper will focus on site analysis of historic building structure in heritage area using the Non-Destructive Method. The tests were carried out on structural elements mostly before and after repair works to justify the increase in strengths after the repair works. The test will focus on structural repair, alteration works, micro piling works an...
This paper will focus on structural repair works process for strengthening of existing
historic building. This papers will explore the several method that been used in the
structural repair works and how the impact on the building structure before and after the
process. The decision as to whether a given building needs to be strengthened and to...
This paper will focus on review of related literature about land use and forestry management in Sabah which specifically focusing on Lower Kinabatangan. The aim of this papers is to review the Sabah forestry status in order to see if there have been any important changes of the land use over the last decades. This paper also highlights some of the...
Since 1992, when the first United Nations’ Earth Summit was held in Rio de Janeiro, sustainable forest management (SFM) has been increasingly used to maintain a balance between social, economic and environmental development. In line with this, the successful implementation of SFM depends in large measure on the involvement of all the stakeholders....
Since 1992, when the first United Nations’ Earth Summit was held in Rio de Janeiro, sustainable forest management (SFM) has been increasingly used to maintain a balance between social, economic and environmental development. In line with this, the successful implementation of SFM depends in large measure on the involvement of all the stakeholders...
Sabah is known in the world with its nature and biodiversity. In fact, one of the contributions of tourism sector in Sabah is the uniqueness of the nature and wildlife. Unfortunately, the developments of agriculture, particularly for oil palm cultivation cause so many negative impacts to environmental imbalance, especially in fragile areas such as...
Questions
Questions (3)
Urban area mostly used old tree as a nature contribution to defense mechanism toward weather climate. Unfortunately after heavy rainfall with windy situation, topple tree become a serious treat to the town and sometimes lead to property damages and human casualties. So the main purpose of the question is to find a wright tool and instrument to be use to understand the exact situation.
Searching for instrument type for the research.
1. What is the best theoretical and practice for building assessment.
2. If i want to do research on building defect, what type of survey instrument that i can use in order to establish and strentening my research methodology. Please advise
Projects
Projects (13)
In order to provide the strategies that can be adopted to achieve better performance of refurbishment/retrofits existing buildings while also minimize the issues on the overwhelming ratio of the existing building to new construction towards creating a better human environment.
1. To establish all reliable resources concerning Coronavirus Disease 2019 (COVID-19) in terms of theory and practices.
2. To develop Managing technic at global, national, state, local authority, family, and individual.
3. to establish mitigation and combating technic at individual, family, regional, state, federal and global level
To establish issues and problems of internal and external drainage at the government building. And to promote a new invention and innovation base on-site evidence.