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Commercial fishery assessment of Malaysian water offshore structure
Mohd Hairil Mohd,Mohd Izzat Mohd Thiyahuddin,Mohd Asamudin A Rahman,Tan Chun Hong,Hii Yii Siang,Nor Adlina Othman,Azam Abdul Rahman,Ahmad Rizal Abdul Rahman,Ahmad Fitriadhy 한국수산과학회 2022 Fisheries and Aquatic Sciences Vol.25 No.9
To have a better understanding of the impact of the PETRONAS oil and gas platform on commercial fisheries activities, Universiti Malaysia Terengganu (UMT) examined two approaches which are data collection from satellite and data collection from fishermen and anglers. By profiling the anglers who utilize reefed oil and gas structures for fishing, it can determine if the design and location of the reef platforms will benefit or negatively impacts those anglers and fisherman. Furthermore, this assessment will be contributing to the knowledge regarding the value of offshore oil and gas platforms as fisheries resources. Collectively, the apparent fishing activity data included, combined with the findings in the reefing viability index will help to inform PETRONAS’s future decommissioning decisions and may help determine if the design and proposed locations for future rigs-to-reefs candidates would benefit commercial fishing groups, further qualifying them as appropriate artificial reef candidates. The method applied in this study is approaching by using a data satellite known as Google’s Global Fishing Watch technology, which is one of the applications to measure commercial fishing efforts around the globe. The apparent commercial fishing effort around the selected twelve PETRONAS platforms was analyzed from January 2012 to December 2018. Using the data collection from fishermen which is the total estimation of commercial fish value cost (in Malaysia ringgit, MYR [RM]) in Peninsular Malaysia Asset, Sabah Asset, and Sarawak Operation region. The data were extracted every month from 2016 to 2018 from the National Oceanic and Atmospheric Administration database. Most of the selected platforms that show a high frequency of vessels around the year are platform KP-A, platform BG-A and platform PL-B. The estimated values of commercial fishes varied between platforms, with ranged from RM 10,209.92 to RM 89,023.78. Thus, platforms with high commercial fish value are selected for reefing in-situ and will serve multi-purposes and benefit the locals as well as the country. The current study has successfully assessed the potential reefing area of the Malaysian offshore environment with greater representativeness and this paper focused on its potential as a new fishing ground.
Bending Behaviour of Different Types of Timber I-Joist
Wan Mohd Nazri Wan Abdul Rahman,Nor Yuziah Mohd Yunus,Mohd Omar Mohd Khaidzir,Mohd Syahrul Hisyam Mohd Sani 대한토목학회 2022 KSCE JOURNAL OF CIVIL ENGINEERING Vol.26 No.5
Engineered wood I-joist is a structural system that comprises of flanges and web elements, and utilised as beams in buildings. Both elements must work together as a structural system to fit and meet the strength behaviour of a solid wood beam. The main objective of the study was to determine the bending strength behaviour of I-joist which produced from three types of jointed technique (finger, L-butt and nail plate) of oriented strand board (OSB) web element with two types of flange element (Keruing solid wood and laminated veneer lumber (LVL)). A total of 18 specimens of I-joist were tested to determine the bending behaviour, especially the modulus of elasticity (E) and modulus of rupture (MR). From the result of testing, LVL flanges specimen were obtained almost as strong as the specimens with solid wood flanges. Additionally, either solid wood or LVL flange was shown non-significant variances in bending strength behaviour because the MR values of the I-joist were insignificantly affected by flange element material. The I-joist specimen with finger jointed web was observed to be the strongest specimen when compared with other joints. Furthermore, the weakest joint among the three types of joints were fabricated with nail plate jointed web. The failures mode of the I-joist specimens were observed to fail due to tension or compression.
Mohd Azlin Mohd Nor,Salit Mohd Sapuan,Mohd Zuhri Mohamed Yusoff,Edi Syams Zainudin 한국섬유공학회 2022 Fibers and polymers Vol.23 No.10
Composite mats based on submicron biopolyester fibers, such as poly(3-hydroxyalkanoate)s, and zinc oxide(ZnO) nanoparticles have been exploited in medicine and environmental areas, as antibacterial wound dressings or filters. Generally, the resulting mat
Composite PD and Fuzzy Logic Approach for Vibration of Elastic Joint Manipulator
Mohd Ashraf Ahmad,Raja Mohd Taufika Raja Ismail,Mohd Syakirin Ramli,Mohd Anwar Zawawi,Mohd Helmi Suid 제어로봇시스템학회 2010 제어로봇시스템학회 국제학술대회 논문집 Vol.2010 No.10
The increased complexity of the dynamics of robots manipulator considering joint elasticity makes conventional model-based control strategies complex and difficult to synthesize. This paper presents investigations into the development of composite collocated proportional-derivative (PD) and Fuzzy Logic Control for trajectory tracking and vibration control of a flexible joint manipulator respectively. To study the effectiveness of the controllers, a collocated PD Controller is developed for tip angular position control of a flexible joint manipulator. This is then extended to incorporate a non-collocated Fuzzy Logic Controller for vibration reduction of the flexible joint system. Simulation results of the response of the flexible joint manipulator with the controllers are presented in time and frequency domains. The performances of the composite control schemes are examined in terms of input tracking capability, level of vibration reduction and time response specifications. Finally, a comparative assessment of the control techniques is presented and discussed.
Rohani Mohd Fazrin Mohd,Yonan Siti Nurshahirah Mohd,Tagiling Nashrulhaq,Zainon Wan Mohd Nazlee Wan,Udin Yusri,Nawi Norazlina Mat 대한척추외과학회 2020 Asian Spine Journal Vol.14 No.5
Study Design: Retrospective study.Purpose: This study aims to semiquantitatively evaluate the standardized uptake value (SUV) of <sup>99m</sup>Tc-methylene diphosphonate (MDP) radionuclide tracer in the normal vertebrae of breast cancer patients using an integrated single-photon emission computed tomography (SPECT)/computed tomography (CT) scanner.Overview of Literature: Molecular imaging techniques using gamma cameras and stand-alone SPECT have traditionally been utilized to evaluate metastatic bone diseases. However, these methods lack quantitative analysis capabilities, impeding accurate uptake characterization.Methods: A total of 30 randomly selected female breast cancer patients were enrolled in this study. The SUVmean and SUVmax values for 286 normal vertebrae at the thoracic and lumbar levels were calculated based on the patients’ body weight (BW), body surface area (BSA), and lean body mass (LBM). Additionally, 106 degenerative joint disease (DJD) lesions of the spine were also characterized, and both their BW SUVmean and SUVmax values were obtained. A receiver operating characteristic (ROC) curve analysis was then performed to determine the cutoff value of SUV for differentiating DJD from normal vertebrae.Results: The mean±standard deviations for the SUVmean and SUVmax in the normal vertebrae displayed a relatively wide variability: BW=3.92±0.27 and 6.51±0.72, BSA=1.05±0.07 and 1.75±0.17, and LBM=2.70±0.19 and 4.50±0.44, respectively. Generally, the SUVmean had a lower coefficient of variation than the SUVmax. For DJD, the mean±standard deviation for the BW SUVmean and SUVmax was 5.26±3.24 and 7.50±4.34, respectively. Based on the ROC curve, no optimal cutoff value was found to differentiate DJD from normal vertebrae.Conclusions: In this study, the SUV of <sup>99m</sup>Tc-MDP was successfully determined using SPECT/CT. This research provides an approach that could potentially aid in the clinical quantification of radionuclide uptake in normal vertebrae for the management of breast cancer patients.
Siti Asma’ MOHD ROSDI(Siti Asma’ MOHD ROSDI ),Mohamad Rohieszan RAMDAN(Mohamad Rohieszan RAMDAN ),Sabrinah ADAM(Sabrinah ADAM ),Nursyazwani Mohd FUZI(Nursyazwani Mohd FUZI ),Azila ABDUL RAZAK(Azila AB 한국유통과학회 2022 유통과학연구 Vol.20 No.11
Purpose: This article explores the experiences of Research Universities (RU) on distribution-support technologies in commercialisation with a specific focus in the Malaysian context. Research design, data and methodology: A qualitative research was carried out, in which six RU were interviewed. A structured interview was conducted. To analyse and interpret the data was using an approach adopted in qualitative thematic strategy. The findings were transcribed using Atlas.ti software to analyse related themes through a thematic analysis approach to link theories. Results: The findings provide useful insights into the significant roles of distribution-support technologies on the commercialisation strategy and impacts on the ecosystem of innovation and commercialisation in providing the importance of Distribution-support Technologies to strengthen the role of university-industry-community relation to drive the economy towards a high-income nation. Conclusions: This study will contribute theory through commercialisation literature by adding new knowledge concerning the link between universities and distribution-support technologies in commercialisation. Therefore, the practical contributions are significant for universities; industries; research institutes; government and societies to develop and plan strategically for effective, strategic and sustainable distribution-support technologies in innovation and commercialisation ecosystem.
Mohd Shahrul Mohd Nadzir,Sawal Hamid Md Ali,Mohd Talib Latif,Soo Wei Khor,Haris Hafizal Abd Hamid,Utbah Rabuan,Zaki Khaslan 한국대기환경학회 2021 한국대기환경학회 학술대회논문집 Vol.2021 No.10
Clean air is one of the most fundamental principles of life quality and well-being. Outdoor and indoor air pollutions both can contributes to human health problems. Conventionally, the methodologies adapted to measure indoor air pollutants are based on: (i) passive samplers, which require long sampling periods and/or (ii) continuous sampling, which generally are bulky and expensive, generating noise and vibration, preventing its deployment in many places at the same time, leading to a limited spatiotemporal coverage. In recent years, low-cost air pollution technologies have gained increasing interest and, consequently, have been studied widely by the scientific community for air pollutions monitoring. Thus, it is important that these new sensing technologies provide reliable data, with good precision and accuracy. Electrochemical (EC) sensors from AiRBOXSense were constructed to measure CO, NO₂, and O₃. Results showed that the sensors behaved highly linearly in laboratory experiments and had response times of around 0.5-1.6 min. In this study, a simple equation was used to translate the signal to mixing ratio and was calibrated by adding a correction in order to achieve the minimum difference against the gas standard. We found that with the added corrections such as the new sensitivity and offset to the quation with most of the pollutants were r² = 0.8 (p ˂ 0.01), the difference values between mixing ratio of EC sensor and gas standard became decreased. Furthermore, this equation is deployed together with the other calibration model which constructed using the machine learning to translate signal to mixing ratios in the field experiment. Nevertheless, it should be noted that the representatives of measurements in this result only showed during the conditions of this campaign. Thus, the use of low-cost sensing technology to monitor indoor air pollutions is encouraged, but not waiving the relevance of high quality instruments (mainly reference instruments) as reference.
Mohd Noor Mohd Shariff,Jauriyah Shamsuddin,Mohd Nizam Abdul Kadir 대한산업공학회 2019 Industrial Engineeering & Management Systems Vol.18 No.3
Overcoming challenging circumstances in a dynamic environment requires markets to have superior performance compared to their rivals. In order to achieve superior performance, this study analyzed two strategic orientation variables which might influence a retail firm performance - market orientation (MO) and entrepreneurial orientation (EO). It also examined the effect of Volatile Environment (VE) as a moderator for both direct affiliations towards the performance. Quantitative data were gathered from the 152 owner-managers of retail firms within the scope of Small and medium-sized enterprises (SMEs) in Malaysia. Dataset were processed for validity and reliability using SPSS and the multivariate regression performed using Smart PLS software. Four hypotheses were postulated and tested through structural equation model evaluations. The results indicated VE strongly moderated the relationship between MO and firm performance (FP). However, there was no significant moderating effect on the relationship between EO and performance. For direct effect relationship, the results revealed that MO had positive significant influence on FP. In contrast, EO had no significant effect on the retail firm performance.