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Corrosion current density prediction of 3C steel under different seawater environment via artificial neural network

AIP Conference Proceedings 2024年第1期2998卷

作者： Mohammad Fakhratul Ridwan Bin Zulkifli Siti Norhaizam Binti Abd. Wahab Samsuri Bin Abdullah Suriani Binti Mat Jusoh Wan Mohd Norsani Bin Wan Nik Marine Materials Research Group Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu 21030 Kuala Nerus Terengganu Malaysia

The harsh seawater environment provides a corrosive medium to all structures built from metallic materials that operate within this environment. Due to its mechanical strength, ease of manufacture, formability, and low cost, 3C steel is the most widely used structural material in various sectors. However, the corrosion problem cannot be avoided due to its interaction with seawater. Furthermore, due to the extensive range of parameters regulating the rate, predicting the corrosion rate of 3C steel structures in the marine environment is challenging. Hence, corrosion rate modelling improves better understanding in terms of corrosion behaviour. In this study, the corrosion rate prediction of 3C steel in seawater was conducted via an artificial neural network (ANN). This study aims to establish a corrosion current density prediction of 3C steel influenced by different seawater environment parameters. The data came from previous studies that looked at dissolved oxygen, salinity, pH value, temperature, and oxidation-reduction potential to see how these affected the corrosion rate of 3C steel in seawater. Three training algorithms were proposed in Multi-Layer Perceptron (MLP), which are Levenberg Marquardt (LM), Bayesian Regularization (BR), and Scaled Conjugate Gradient (SCG). The results show that the LM algorithm is the best training algorithm in this study according to its performance indicator represented by high regression, R, and low mean square error (MSE) value.

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Effect of nano particle additive on biodiesel fuel in diesel engines: A review

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AIP Conference Proceedings 2023年第1期2746卷

作者： A. N. F. Mohamad Riza C. W. Mohd Noor Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu 21030 Kuala Nerus Terengganu Malaysia Fuels and engine Research Interest Group Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu 21030 Kuala Nerus Terengganu Malaysia

Nano particle - new technology additives used within biodiesel fuel have been developed through generations in order to improve diesel engines (DE) performance while reducing the emission causing the environmental pollution. This comprehensive review is conducted to investigate the effect of nano particle additives on biodiesel fuel in diesel engines. Due to high demand in increasing the emission standards especially from International Maritime Organization (IMO), it has captivated the authors interest in developing the use of nano particle towards biodiesel fuel because of the ability to reduce exhaust emission of diesel engines. The results show the addition of nano particles in B20 and were auspicious where it reduced carbon oxide (CO), nitrogen oxide (NOx), low heat release rate (HRR), and lower brake thermal efficiency (BTE). Altogether, the authors have compiled several research papers that contain overview of biodiesel fuel, types of nano particle, effect on exhaust emission and diesel engine performance, and lastly advantages of using nano particles in biodiesel fuel. Hence, the findings are provided for future research opportunities and clear understanding of nano particle technology in improving DE fuel performance.

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Latin Hypercube Sampling Jaya Algorithm based Strategy for T-way Test Suite Generation 2020

Latin Hypercube Sampling Jaya Algorithm based Strategy for T...

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9th International Conference on Software and Computer Applications, ICSCA 2020

作者： Nasser, Abdullah B. Abdul-Qawy, Antar S. H. Abdullah, Nibras Hujainah, Fadhl Zamli, Kamal Z. Ghanem, Waheed A. H. M. Universiti Malaysia Pahang Faculty of Computing Pahang Malaysia SUMAIT University Faculty of Computing Zanzibar Tanzania United Republic of Hodeidah University Faculty of Computer Science and Engineering Yemen Universiti Malaysia Terengganu Faculty of Ocean Engineering Technology and Informatics Terengganu Malaysia

ISBN: (纸本)9781450376655

T-way testing is a sampling strategy that generates a subset of test cases from a pool of possible tests. Many t-way testing strategies appear in the literature to-date ranging from general computational ones to meta-heuristic based. Owing to its performance, man the meta-heuristic based t-way strategies have gained significant attention recently (e.g. Particle Swarm Optimization, Genetic Algorithm, Ant Colony Algorithm, Harmony Search, Jaya Algorithm and Cuckoo Search). Jaya Algorithm (JA) is a new metaheuristic algorithm, has been used for solving different problems. However, losing the search's diversity is a common issue in the metaheuristic algorithm. In order to enhance JA's diversity, enhanced Jaya Algorithm strategy called Latin Hypercube Sampling Jaya Algorithm (LHS-JA) for Test Suite Generation is proposed. Latin Hypercube Sampling (LHS) is a sampling approach that can be used efficiently to improve search diversity. To evaluate the efficiency of LHS-JA, LHS-JA is compared against existing metaheuristic-based t-way strategies. Experimental results have shown promising results as LHS-JA can compete with existing t-way strategies. © 2020 ACM.

关键词： Genetic algorithms

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Behaviour of Geomagnetic storm, horizontal geomagnetic field and solar wind parameters during solar flare and CMEs event. 2

Behaviour of Geomagnetic storm, horizontal geomagnetic field...

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2nd International Conference on Space Weather and Satellite Application, ICeSSAT 2020

作者： Syed Zafar, S.N.A. Hazmin, S.N. Jusoh, M.H. Dagang, A.N. Adzni, M.A.M. Umar, R. East Coast Enviromental Research Institute Universiti Sultan Zainal Abidin Kuala Nerus Terengganu21300 Malaysia School of Fundamental Science Universiti Malaysia Terengganu Kuala Terengganu Terengganu21300 Malaysia Faculty of Electrical Engineering Universiti Teknologi Mara Selangor Shah Alam Malaysia Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu Kuala Nerus Terengganu21030 Malaysia

Space weather is driven by solar activities by pulling out the variety of phenomenon such as solar flare and coronal mass ejection (CMEs). It been discovered the CMEs and solar flares have causes disturbance at near-Earth space. This paper is to examined the behaviour of geomagnetic storm, horizontal geomagnetic field and several solar wind parameters during solar flare and CMEs event at minimum of solar cycle of 24. Observational result found that association of strongest solar flare and CMEs have declined the geomagnetic storm until-150nt at 8th September 2017. Following to this, the H component reading also slightly decreased at three magnetometer location respectively. Solar flare and CMEs released the energetic particles that could disturbed the radio communications at the Earth and electronic equipment. Therefore, it was required to study and understanding the solar flare and CMEs event. © 2021 Published under licence by IOP Publishing Ltd.

关键词： Geomagnetism

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Computational analysis on B-series propeller performance in open water

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Marine Systems and ocean technology 2020年第4期15卷 299-307页

作者： Adam, N. Amira Fitriadhy, A. Quah, C.J. Haryanto, T. Programme of Maritime Technology Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu Kuala TerengganuTerengganu21030 Malaysia Numit Enterprise Seri KembanganSelangor Malaysia P.T. Tarafulk Megantara Design Gayungsari Barat VII/20 SurabayaEast-Java Indonesia

This paper presents a computational fluid dynamics (CFD) simulation to predict thrust coefficient (KT), torque coefficient (KQ) and efficiency (η) in open-water condition, whilst a hydrodynamic description around the propeller’s blade underlying the rationale behind the results is explained. The effects of propeller revolution (RPM) and number of blades (Z) on the type of B-series have been appropriately taken into account within the range of advance ratio 0.1≤ J≤ 1.0. The preliminary CFD results for the values of KT, KQ and η showed a good agreement with the open-water test results, in which the percentage of the average discrepancy error is adequately acceptable. In general, the results revealed that the increase of advance ratio was proportional with the values of KT, KQ and η. Inversely, the propeller’s efficiency decreases particularly at J > 0.8. Regardless of the propeller’s RPM, the propeller with Z = 3 provides the highest efficiency. The current CFD result is very useful for acquiring an insight related to the fundamental understanding of the propeller properties in open-water condition. © 2020, Sociedade Brasileira de Engenharia Naval.

关键词： Blade number CFD Efficiency Propeller RPM Torque and Thrust

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Video structure extraction using shot boundary detection for authentication detection

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AIP Conference Proceedings 2023年第1期2484卷

作者： Fadilah Harun Noraida Haji Ali Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu 21030 Kuala Nerus Terengganu Malaysia.

Many recent cases of illegal activities have been reported regarding the video and all the unlawful activities designed to destroy the originality of the video data. A slight modification can alter the meaning and intent of the video. Nowadays, many devices have gained the power of tapping or capturing digital video, and all these videos can be approved over the internet and many other unsafe channels. Therefore, the detection o of video authentication proving is a widespread and critical problem in various areas such as criminal, forensic investigations, and court cases. The preceding study proposed numerous techniques to ensure the authentication of video data and structure. This study emphasized retrieving a video structure to detect an alteration made in the video using shot boundary detection to prove authentication. The detection of shot boundary is a complicated task and is usually utilized for structured video because these techniques can identify modifications made with a fundamental shot change frequency. This study focuses on retrieving a video structure to detect an alteration made in the video by detecting shot boundary to prove authentication. The detection of shot boundary is a complicated task and is usually utilized for structured video because these techniques can identify modifications made with a regular shot change frequency. Furthermore, this study aims to develop a new model for video authentication detection using the shot boundary detection method, which is considered the practical tool to track down the originality based on their fundamental structure.

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On Genetic Algebra and its Transformation to some Evolution Algebras in Dimension Four 2

On Genetic Algebra and its Transformation to some Evolution ...

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2nd Joint International Conference on Emerging Computing technology and Sports, JICETS 2019

作者： El-Qader, Hamza Abd Ghani, Ahmad Termimi Ab Qaralleh, I. Department of Mathematics Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu Kuala Nerus Terengganu21030 Malaysia Department of Mathematics Faculty of Science Tafila Technical University Tafila66110 Jordan

Genetic algebra is a (possibly non-associative) algebra used to model inheritance in genetics. This paper investigates the existence of non-associative and derivation of genetic algebra related to some operators generated by ξ (as) - QSO. Moreover, a transformation of genetic algebra to some evolution algebras in dimension four is investigated. © Published under licence by IOP Publishing Ltd.

关键词： Algebra

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Microstructure Study of Calcium Manganese Oxide (CaMnO3) as Perovskite Materials

Microstructure Study of Calcium Manganese Oxide (CaMnO3) as ...

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2019 International Conference on Semiconductor Materials and technology, ICoSeMT 2019

作者： Nurhaziqah, A.M.S. Afiqah, I.Q. Hisam Abd Aziz, Mohd Fazrul Aziz, N. A. Nik Zalani Daud, Muhamad Hasiah, S. Nurhayati, I. Faculty of Fisheries and Food Sciences Universiti Malaysia Terengganu Kuala Nerus Terengganu21030 Malaysia Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu Kuala Nerus Terengganu21030 Malaysia

The use of metal oxide as an n-type semiconductor behavior is one of the important material in solar cells. Among the materials, these researches focus on perovskite structure of CaMnO3. The single phase of CaMnO3 synthesised by citrate method were studied for the microstructure of CaMnO3. The perovskite structure of CaMnO3 was characterized by using X-ray Diffraction (XRD), Fourier transform-infrared (FTIR) spectroscopy, Scanning Electron Microscope (SEM) and Thermogravimetric Analysis (TGA). Results indicated that the single phase of CaMnO3 was revealed by XRD analysis. The specific interactions in the metal oxide and hence about the complexation led by FTIR. The morphological structure of the samples was studied by SEM, which confirmed the XRD analysis. While TGA analysis affirmed the CaMnO3 was formed. © 2020 IOP Publishing Ltd. All rights reserved.

关键词： Fourier transform infrared spectroscopy

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A literature study of mobile-based learning interfaces design

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AIP Conference Proceedings 2023年第1期2746卷

作者： Fatin Sarah Salim Zuriana Abu Bakar Noor Maizura Mohamad Noor Rosmayati Mohemad Faculty of Ocean Engineering Technology & Informatics Universiti Malaysia Terengganu 21030 Kuala Nerus Terengganu Malaysia.

Aesthetic refers to the theoretical study of beauty and taste. It is an essential part in attracting the interest of users as it could sway the users’ first impression of the object and may well be the deciding factor in getting the user attention. Aesthetic is utilized in many fields including the education field such as learning via mobile platform, called mobile learning (m-learning). M-learning refers to the use of portable or mobile devices in education. In today’s environment, m-learning is an integral part in learning and is indispensable. From the higher education to the primary school, m-learning is used in various learning activities for example as the medium for assignment or for note archive. The availability of the mobile devices such as mobile phone and tablet today initiate the prospect of development for many new learning applications. Thus, this study intent to investigate the design principles used in existing mobile applications based on the literature reviews of previous studies. The findings of this study are the list of the design principles applied in those previous studies. Overall, this finding will enable to highlight the design principles that usually used in mobile applications and the effect on the usage of the application itself.

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Pythagorean fuzzy Bézier modelling for treating uncertainty in spatial data sets

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AIP Conference Proceedings 2023年第1期2746卷

作者： N. A. Abu Bakar B. Yusoff A. F. Wahab M. Mamat Faculty of Informatics and Computing Universiti Sultan Zainal Abidin 21300 Terengganu Malaysia Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu 21300 Terengganu Malaysia

The spatial earth data are the sets of data that have values in latitude, longitude and altitude. Due to the satellite’s measurement errors, these data are classified as uncertainty data. In order to solve this problem, a new geometric model using Pythagorean Fuzzy Sets (PFSs) is proposed. From the previous researches, the uncertainty data can be expressed in Fuzzy Sets (FSs) but then still they are not able to handle the hesitation or incompleteness in data that lead to the development of Intuitionistic Fuzzy Sets (IFSs). These IFSs use the degree of membership and non-membership and able to handle hesitancy. Nevertheless, if the sum of membership and non-membership degrees is greater than one, IFSs cannot be used in this circumstance. Therefore, the PFSs are fit for this issue. Then, Pythagorean Fuzzy Bézier is introduced in this paper to overcome uncertainty in the complex spatial data sets by using Bézier Approximation for curve and surface.

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