Deprizon Syamsunur
@ucsiuniversity.edu.my
Head of Department
UCSI UNIVERSITY
RESEARCH INTERESTS
Artificail Intellegence, Materials, Highway, Transportation, Traffic Demand
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Cong Peng, Deprizon Syamsunur, and Yi Huang
EDP Sciences
The structural safety of concrete-filled steel tubes primarily depends on the interfacial bonding between the steel tube and concrete, two heterogeneous materials. Simultaneously, varying confinement interfaces have diverse impacts on the bond-slip behavior of concrete-filled steel tubes, leading to a variety of damage and failure modes. This article reviews research on the performance of concrete-filled steel tubes, explores damage at different confinement interfaces, and collates findings on bond-slip behavior under various confinement interface conditions, aiming to provide a reference for subsequent studies.
S. Surol, M. Y. Chow, A. R. Abd Hamid, D. Syamsunur, J. L. Ng, H. Jusoh, H. K. Lehl, N. F. Abdullah, E. E. Hussin, and N. I. F. Md Noh
Springer Nature Singapore
Zhenquan Zhou, Deprizon Syamsunur, Lanxin Wang, and Ang Chun Kit
EnPress Publisher
Scholars widely agree that modular technologies can significantly improve environmental sustainability compared to traditional building methods. There has been considerable debate about the viability of replacing traditional cast-in-place structures with modular construction projects. The primary purpose of this study is to determine the feasibility of using modular technology for construction projects in island areas. Thus, it is necessary to investigate the potential problems and suitable solutions associated with modular building project implementation. This study is accomplished through the use of qualitative and quantitative methods. It systematically examines desk research based on the wide academic literature and real case studies, collating secondary data from government files, news articles, professional blogs, and interviews. This research identifies several important barriers to the use of modular construction projects. Among the issues are the complexity of stakeholder engagement, limited practical skills and construction methodologies, and a scarcity of manufacturing capacity specialised for modular components. Fortunately, these unresolved challenges can be mitigated through fiscal incentives and governmental regulations, induction training programmes, efficient management strategies, and adaptive governance approaches. As a result, the findings support the feasibility of starting and advancing modular building initiatives in island areas. Project developers will likely be more willing to embrace and commit resources to initiate modular building projects. Additional studies can be undertaken to acquire the most recent first-hand data for detailed validation.
Deprizon Syamsunur, Li Wei, Muhammad Noor Hisyam, Zubair Ahmed Memon, and Basel Sultan
Elsevier BV
Peng Cong, Syamsunur Deprizonn, and Taha Mohammed Jassama
EDP Sciences
In recent times, there has been a significant amount of research dedicated to traditional concrete-filled steel tubular (CFST) structures. This research has been broad and includes both practical testing and theoretical analysis. As of late, scholars have redirected their attention toward introducing innovations in the domain of steel-concrete composite systems. This piece delves into investigations involving experiments and simulations, as well as the underlying mechanisms and interplays of constraints. The focus is on rectangular columns made of Steel-Reinforced Concrete Filled Square Tubular (SRCFST), subjected to combined compression and torsion forces. By building upon previous investigations, the article not only provides a summary but also evaluates the pathways that research on SRCFST columns has taken. Additionally, it offers a glimpse into the potential directions for future studies. This comprehensive strategy not only serves as a point of reference for upcoming research endeavors but also furnishes practical insights for their real-world implementation.
Weichen Hao, Shan Lu, Zhijiang Lou, Yonghui Wang, Xin Jin, and Syamsunur Deprizon
MDPI AG
Orthonormal subspace analysis (OSA) is proposed for handling the subspace decomposition issue and the principal component selection issue in traditional key performance indicator (KPI)-related process monitoring methods such as partial least squares (PLS) and canonical correlation analysis (CCA). However, it is not appropriate to apply the static OSA algorithm to a dynamic process since OSA pays no attention to the auto-correlation relationships in variables. Therefore, a novel dynamic OSA (DOSA) algorithm is proposed to capture the auto-correlative behavior of process variables on the basis of monitoring KPIs accurately. This study also discusses whether it is necessary to expand the dimension of both the process variables matrix and the KPI matrix in DOSA. The test results in a mathematical model and the Tennessee Eastman (TE) process show that DOSA can address the dynamic issue and retain the advantages of OSA.
Mohamad Rajab Houmsi, Zulhilmi Ismail, llya Khairanis Othman, Daeng Siti Maimunah Ishak, Mohammed Magdy Hamed, Zafar Iqbal, Deprizon Syamsunur, and Shamsuddin Shahid
Springer Science and Business Media LLC
Zhijiang Lou, Weichen Hao, Shan Lu, Pei Sun, Yonghui Wang, and Syamsunur Deprizon
MDPI AG
To overcome the shortage of traditional temperature sensors, this paper adopts infrared thermal imaging technology for temperature measurement. To avoid the spatial information loss issue during the image data vectorization process, this paper adopted the spatial relationship between pixels in principal component analysis (PCA) model training, which is called spatial information-based PCA (SIPCA). Then, spatial information is also used in the fault localization method to enhance the fault location performance. Tested by an experimental tank system, the proposed method achieves better performance than the traditional PCA approach, and it can detect heat leakage faults on the surface of the equipment.
Yonghui Wang and Syamsunur Deprizon
IEEE
The vehicle side-slip angle (VSA) is an important state parameter of vehicle dynamics, which can judge the stability and safety of the current state of a vehicle. Improving its estimation accuracy will contribute to the research on vehicle control theory. However, directly measuring the VSA is too costly for production vehicles, so it is generally estimated. This paper proposes a data-driven VSA estimation model that does not rely on high-precision sensors and that does not need strict vehicle dynamics and tire models. It is only necessary in the early development stage to rapidly estimate VSA by obtaining variable data that affects VSA, such as yaw speed, vehicle speed, and lateral acceleration. Verification of vehicle test data shows that the VSA estimate has strong robustness to the impact of vehicle model deviation and noise, and the proposed model can accurately estimate the VSA of high and low adhesion roads under control parameters.
Mohammed Hamza Momade, Shamsuddin Shahid, Ghaith Falah, Deprizon Syamsunur, and Dave Estrella
Informa UK Limited
Zedong Li, Yonghui Wang, Weifeng Hou, Shan Lu, Yuanfei Xue, and Syamsunur Deprizon
American Chemical Society (ACS)
The partial least squares (PLS) algorithm is a commonly used key performance indicator (KPI)-related performance monitoring method. To address nonlinear features in the process, this paper proposes neural component analysis (NCA)-PLS, which combines PLS with NCA. (NCA)-PLS realizes all the principles of PLS by introducing a new loss function and a new principal component selection mechanism to NCA. Then, the gradient descent formulas for network training are rederived. NCA-PLS can extract components with large correlations with KPI variables and adopt them for data reconstruction. Simulation tests using a mathematical model and the Tennessee Eastman process show that NCA-PLS can successfully handle nonlinear relationships in process data and that it performs much better than PLS, KPLS, and NCA.
Deprizon Syamsunur, Li Wei, Zubair Ahmed Memon, Salihah Surol, and Nur Izzi Md Yusoff
MDPI AG
Fire and extreme heat environmental changes can have an impact on concrete performance, and as climate change increases, new concrete structures are being developed. Nano-silica and nano-calcium carbonate have shown excellent performances in modifying concrete due to their large specific surface areas. This review describes the changes in concrete modified with nano-silica (NS) and nano-calcium carbonate (NC), which accelerate the hydration reaction with the cementitious materials to produce more C-S-H, resulting in a denser microstructure and improved mechanical properties and durability of the concrete. The mechanical property decay and visualization of deformation of mixed NS and NC concrete were tested by exposure to high temperatures to investigate the practical application of mixed composite nanomaterials (NC+NS) to concrete. The nano-modified concrete had better overall properties and was heated at 200 °C, 400 °C, 600 °C and 800 °C to relatively improve the mechanical properties of the nano concrete structures. The review concluded that high temperatures of 800 °C to 1000 °C severely damaged the structure of the concrete, reducing the mechanical properties by around 60%, and the dense nano concrete structures were more susceptible to cracking and damage. The high temperature resistance of NS and NC-modified nano concrete was relatively higher than that of normal concrete, with NC concrete being more resistant to damage at high temperatures than the NS samples.
Muhammad Noor Hisyam Jusoh, Deprizon Syamsunur, Norinah Abd Rahman, Emmanuel Olisa, Abdur Rahim, and Nur Izzi Md Yusoff
Hindawi Limited
Geotechnical engineering design necessitates a study of soil parameters for calculation purposes. As a complement to the conventional method, a resistivity survey can give preliminary results in a short amount of time. This study uses a statistical analysis program to show a correlation and regression for predicting soil parameters based on the resistivity value. Sixty-six data points for each soil parameter and resistivity were used for statistical analysis from six profiles of the study area as a part of the investigation. The soils are sampled by drilling the borehole up to a depth of 3 meters. The Wenner array was applied to conduct a resistivity survey. The collected data were utilized to establish a correlation between resistivity (ρ) and soil parameters such as moisture content ( w ), clay content (clay), plasticity index ( P I ), friction angle (ϕ), bulk density (γ), and porosity (n). The generated statistic model was improved through several iterations for each correlation. For the ρ- w , ρ-clay, ρ-PI, ρ-ϕ, ρ-γ, and ρ-n relationship, the total iterations are 5, 4, 7, 6, 5, and 4 for each correlation, respectively. Resistivity and moisture content showed a significant power correlation, followed by a modest relationship between resistivity and porosity. Between resistivity and other parameters, relationships such as clay content, bulk density, friction angle, and plasticity index were found to have very weak or no association. However, some trends can be seen clearly. This study aims to offer the geotechnical engineer a quick preliminary way of obtaining the associated soil parameters for various geotechnical calculations employing the resistivity approach based on the developed numerical equation.
Syed Ali Rizwan, Muhammad Irfan-ul-Hassan, Abdur Rahim, Salman Ali, Asim Sultan, Deprizon Syamsunur, and Nur Izzi Md Yusoff
Hindawi Limited
The utilization of construction and demolition waste is useful for sustainable infrastructure development and protecting the environment. In this research, the properties of self-compacting concrete produced by replacing the natural coarse aggregates (NCA) with inferior recycled coarse aggregates (RCA) were investigated. The properties of self-compacting concrete (SCC) and self-compacting mortar (SCM) with varying replacements of RCA (0, 25, 50, and 100%) in NCA were determined. The flow, strength, early shrinkage tests, and microstructure using X-ray diffraction (XRD) and a scanning electron microscope (SEM) were investigated. The fresh property results indicated that the viscosity of freshly mixed SCC increased with higher replacement levels of RCA, thus reducing flow. The compressive strength of RCA SCC was reduced up to 30% for a 100% replacement level, while the flexural strength was reduced by about 15%. The compressive strength and flexural strength of SCMs, however, increased up to 12% and 28% for 100% replacement with RCA. The mechanical strength of SCM increases with RCA because of high fine content which reduces the porosity and makes the system denser. The early age linear shrinkage increases with RCA due to its greater water absorption. The results indicate that recycled coarse aggregate can be effectively used as the replacement of NCA in SCC to produce sustainable and eco-friendly structural concrete.
Nur Ilya Farhana Md Noh, Wardati Hashim, Ng Jing Lin, Lee Jin Chai, Ruzaimah Razman, and Deprizon Syamsunur
IOP Publishing
Abstract As timber with natural durability and excellence properties is limited and high in price, there is a need to make use of the timber with low durability and properties. In order to use this kind of timber, the timber needs to be treated to improvise its properties and durability. The well-known treatment used worldwide is by using chemical preservative; however, this kind of treatment is bad to the environment. Therefore, there is a need to find an alternative way to replace this treatment with an environmentally friendly way of treatment. Heat treatment is one of the treatments which may equip the timber with new properties without using any chemical or preservative but heat where the heat is used to achieve new material properties rather than to dry the wood. Heat treatment generally causes an apparent decrease in wood mechanical properties due to the material losses in the cell wall, hemicelluloses degradation and the modification of long chain molecules. Therefore, this study investigated the effect of heat treatment on the colour of one of the Malaysian hardwood timbers; Pauh Kijang which located in Strength Group 3 of timber (SG3) after had been treated by heat. The size of the timber beam for each sample is 50mm x 90mm x 1800mm. The total numbers of the sample are 90 which 15 numbers of sample allocated for control, kiln dried and four levels of heat treatment. There are four different levels of temperatures namely 150°C, 170°C, 190°C and 210°C were applied on the timber beam samples within 1 hour. Control and kiln dried samples been used as comparisons to each test conducted to identify the changes that occur on the colour after heated. The colour turned darker as the temperatures increased for these four species of heat-treated timber which had been analysed by CIE-Lab system.
Nadiah Md Husain, Norfarah Nadia Ismail, Kamsiah Mohd Ismail, Deprizon Syamsunur, and Mariati Mohd Taib
IOP Publishing
A composite pavement known as semi rigid wearing course is made by incorporating high workability fluid grout into a high porosity of porous asphalt skeleton. This fluid grout is particularly designed to have the consistency workability of water with high early and 28 – day strength. It is critical to maintain its high fluidity so it can flow through air voids while simultaneously generate high compressive strength with minimal porosity. The aim of this study is to investigate the influence of a known pozzolanic material towards the properties of fluid grout. A wide range of mix trials was formulated with various proportions of chemical and mineral admixtures. The fresh and hardened grout underwent flow cone and compressive test for its workability and strength determination respectively. The results obtained show that the combination of a known pozzolanic material and a known chemical admixture is possible to improve the fluidity of grout and strength when suitable and conducive mix proportions attained.
Ali Ahmed Mohammed, Kamarudin Ambak, Ahmed Mancy Mosa, and Deprizon Syamsunur
Bentham Science Publishers Ltd.
A traffic accident, a traffic collision or crash occurs when a vehicle collides with another vehicle, pedestrian, animal, road barriers, or any stationary obstruction such as a tree or a utility pole. Traffic collisions may result in injury, death, vehicle damage and possession damage. Motor vehicle collisions cause death and disability as well as a financial burden. Traffic accidents cause many losses especially of human life, property damages, and loss of resources. Indeed, even in strife influenced countries such as Afghanistan, Libya, Pakistan, and Yemen, road traffic remains the most common cause of fatal injuries, causing between two and eight times more fatalities than war and lawful mediation. The World Health Organization (WHO) 2013 assessed the traffic casualty rate in the Eastern Mediterranean Region (EMR) to be the second most elevated rate universally after the African Region and extending a few other countries in the region. The aim of this paper was to enrich the global highway safety knowledge by revealing the catastrophic impact of traffic accidents on the economy of the societies and the safety of the common worldwide.
Muhamad Nazri Borhan, Ahmad Nazrul Hakimi Ibrahim, Deprizon Syamsunur, and Riza Atiq Rahmat
Periodica Polytechnica Budapest University of Technology and Economics
This paper investigates the constraints that limit the use of public bus by people commuting to work in Putrajaya, Malaysia. Putrajaya was built to replace the city of Kuala Lumpur as the new administrative centre for the government of Malaysia. This research adopted qualitative methods which involved a total of 29 respondents who use car and/or bus to commute to their workplaces. The findings of this study show that several factors, such as reliability, safety, and customer service, play considerable roles in promoting the use of public transportation. The respondents agree that reliability (e.g. frequency, punctuality, and transfer) is an important factor in choosing a particular mode of transport. Safety is one of the major concern amongst the respondents, which need to be improved along with customer satisfaction of the public bus service. The results of this study suggest that a more reliable and accessible service is required to promote public bus as an attractive mode of transport.
Ali Sobhanmanesh
International Journal of Geomate
Physical modelling through full-scale and small-scale models is widely implemented in order to define specific aspects of the prototype behaviour. On the other hand, numerical modeling is essentially required to cope with the complex geotechnical problems due to the ability of considering and analyzing all aspects of the model and can afford more perception about the behavior of structures such as geosynthetic-reinforced embankments. In this study, four different cases of unreinforced and reinforced embankment models constructed on soft and stiff grounds were studied. Small-scale physical modelling by means of centrifuge tests and numerical modelling by means of finite element simulations were performed. As the small-scale model was rotated in different acceleration fields during the centrifuge test, the dimensions of the centrifugal model were different from the original state of the prototype in different stages of the test. This paper focused on developing a finite element simulation based on the dimensions of a centrifugal model in different incremental acceleration fields applied during the stages of the test. Comparing the results of finite element simulations with the measurements of the centrifuge tests showed a good agreement between the two methods, which verified the reasonableness of the finite element models in analysis of embankments based on small-scale centrifugal dimensions. Moreover, the results showed the different deformation behaviour for embankments on soft and stiff grounds and indicated the significant effect of the geosyntheic reinforcement on increasing the stability of the embankment on soft ground.
Hassn Ahmed H. Hassn, Amiruddin Ismail, Muhamad Nazri Borhan, and Deprizon Syamsunur
International Journal of Technology
An effective and real-time traffic information network is highly important and could contribute to decreasing traffic volume and costs by reducing fuel consumption and saving time for drivers in reaching their destinations. This study provides an extensive analysis regarding the drivers’ acceptance levels of the current implementation of the Intelligent Transport System (ITS) in Kuala Lumpur. A proposed model from the literature review based on the known Technology Acceptance Model (TAM) is introduced. The ITS system characteristics, information quality, system quality, and service quality were investigated as external variables. The resulting analysis showed that information quality is the highest influential factor followed by system quality. The results also revealed that service quality had no effect on acceptance levels.
Muhamad Nazri Borhan, Deprizon Syamsunur, Norliza Mohd Akhir, Muhamad Razuhanafi Mat Yazid, Amiruddin Ismail, and Riza Atiq Rahmat
Hindawi Limited
Putrajaya is a new federal administrative capital of Malaysia which has been set to achieve a 70% share of all travels by public transport in the city area. However, the current modal split between the public transport and private transport is 15 : 85. In order to understand travelers’ willingness to use the public transport, a conceptual model has been developed to determine the factors that affect them to use the public transport instead of travelling in their own cars. Various variables such as service quality, environmental impact, attitude, and behavior intention were analyzed and tested using structural equation model (SEM). Results indicate that the service quality and attitude are found to have positive effects on the behavioral intention of taking the public transport. Other than this, this study also shows that the service quality and environmental impact have some positive influences on the attitude to using the public transport. However, environmental impact has no significant, positive, and direct effect on behavioral intention. The results of this study demonstrate that the model that was developed is useful in predicting the public transport and it could provide a more complete understanding of behavioral intention towards public transport use.
Deprizon Syamsunur, Nazahath Naeem, and Eric Loh
Science Alert
Deprizon ., Amiruddin ., and Riza Atiq
Science Alert