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Anthropogenic disturbance of aquatic biodiversity and water quality of an urban river in Penang, Malaysia

Water Science and Engineering 2023年第3期16卷 234-242页

作者： Nur Azalina Suzianti Feisal Noor Haziqah Kamaludin Muhammad Firdaus Abdullah Sani Dayang Khairulnisa Awang ahmad mohd azwan ahmad Nur Faiza Abdul Razak Tengku Nilam Baizura Tengku Ibrahim Department of Environmental Health Faculty of Health SciencesMAHSA UniversityBandar Saujana Putra42610 JenjaromMalaysia Center of Environmental Health&Safety Faculty of Health SciencesUniversiti Teknologi MARA42300 Puncak AlamMalaysia NaturePRO Services Port Dickson71000 Negeri SembilanMalaysia Department of Environmental Health Faculty of Health SciencesUniversiti Teknologi MARACawangan Pulau PinangKampus Bertam13200 Pulau PinangMalaysia

Malaysia's rapid economic and demographic development have placed negative pressure on its water supplies and the quality of the Juru River, which is close to the nation's capital and its major source of water. Healthy aquatic ecosystems are supported by physicochemical properties and biological diversity. This study evaluated the anthropogenic impacts on aquatic biodiversity, especially plankton, fish, and macrobenthos, as well as the water quality of the Juru River in the Penang area. Aquatic biodiversity and river water parameters were collected from ten sampling stations along the Juru River. Seven variables were used to assess the physicochemical environment: pH, temperature, total suspended solids (TSS), salinity, dissolved oxygen (DO), biochemical oxygen demand (BOD), and chemical oxygen demand. At each sampling station, the total number of plankton, fish, and macrobenthic taxa were counted and analyzed. The relationships between the physicochemical parameters and aquatic biodiversity were investigated with biotypological analysis, principal component analysis, hierarchical cluster analysis, and linear regression analysis. These analyses showed that the richness and diversity indices were generally influenced by salinity, temperature, TSS, BOD, and pH. The data obtained in this study supported the bioindicator concept. The findings, as they related to scientifically informed conservation, could serve as a model for Juru River management, as well as for river management throughout Malaysia and other tropical Asian countries.

关键词： Anthropogenic disturbance Aquatic biodiversity River water quality Urban river Hierarchical cluster analysis

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Overview on Application of Response Surface Methodology （RSM） in Treatment of Palm Oil Mill Effluent （POME）

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Journal of Environmental Science and Engineering(B) 2015年第3期4卷 111-118页

作者： mohd azwan ahmad Luqman Chuah Abdullah Thomas Choong Shean Yax~ Abdul Wahab Mohammad Department of Chemical & Environmental Engineering Faculty of Engineering University Putra Malaysia Serdang 43400 Malaysia Department of Chemical & Process Engineering Faculty of Engineering University Kebangsaan Malaysia Bangi 43650 Malaysia

There are many factors affecting the performance of a treatment system especially in the treatment of palm oil mill effluent （POME） as its contains high amounts of suspended solid, low pH, high salt content and high chemical oxygen demand （COD）. However, one factor at a time approach is complicated method in establishing relationship between multiple parameters. Response surface methodology （RSM） is a recommended approach as it is widely used to analyze and study the interactions between multiple parameters and provides optimum output as well as minimizing the defects which result in good treatment system. This paper overviews the recent and current research in the application of RSM in optimizing the treatment development of POME.

关键词： Palm oil mill effluent (POME) multiple parameters response surface methodology (RSM).

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High Gain of UWB Planar Antenna Utilising FSS Reflector for UWB Applications

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Computers, Materials & Continua 2022年第1期70卷 1419-1436页

作者： Ahmed Jamal Abdullah Al-Gburi Imran Bin mohd Ibrahim Zahriladha Zakaria Badrul Hisham ahmad Noor azwan Bin Shairi Mohammed Yousif Zeain Department of Electronics and Computer Engineering(FKEKK) Center for Telecommunication Research and Innovation(CeTRI)Universiti Teknikal Malaysia Melaka(UTeM)Durian TunggalMalaccaMalaysia

In this paper,a high gain and directional coplanarwaveguide(CPW)-fed ultra-wideband(UWB)planar antenna with a new frequency selective surface(FSS)unit cells design is proposed for UWB *** proposed UWB antenna was designed based on the Mercedes artistic-shaped planar(MAP)*** antenna consisted of a circular ring embedded with three straight legs for antenna impedance bandwidth *** modelled FSS used the integration of a two parallel conductive metallic patch with a circular loop *** FSS provided a UWB stopband filter response covering a bandwidth of 10.5 GHz,for frequencies from 2.2 to 12.7 *** proposed FSS had a compact physical dimension of 5 mm×5 mm×1.6 mm,with a printed array of 19×19 FSS unit *** FSS unit cells were printed on only one side of the dielectric FR4 substrate and placed as a sandwich between the antenna and the reflector ground *** equivalent circuit configuration(ECC)was used to verify the FSS unit cell structure’s *** simulated results indicated that the UWB MAP antenna and FSS reflector provided a fractional bandwidth of 136%and a high gain of 11.5 dB at 8.5 GHz with an acceptable radiation efficiency of 89%.Furthermore,the gain was improved across the operating band and kept between 8.3 and 11.5 *** proposed antenna was in good agreement between theoretical and experimental results and offered a wide enough bandwidth for UWB and vehicle applications.

关键词： UWB MAP antenna stable gain FSS reflector ECC stopband response reflection phase

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IoT-based monitoring and data-driven modelling of drip irrigation system for mustard leaf cultivation experiment

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Information Processing in Agriculture 2021年第2期8卷 270-283页

作者： Emmanuel Abiodun Abioye Mohammad Shukri Zainal Abidin mohd Saiful Azimi Mahmud Salinda Buyamin Muhammad Khairie Idham AbdRahman Abdulrahaman Okino Otuoze Muhammad Shahrul azwan Ramli Ona Denis Ijike Control and Mechatronics Engineering Department School of Electrical EngineeringUniversiti Teknologi Malaysia(UTM)SkudaiJohorMalaysia Electrical/Electronic Engineering Department Akanu Ibiam Federal PolytechnicUnwanaEbonyi StateNigeria Electrical and Electronics Engineering Department University of IlorinIlorinNigeria Faculty of Science Universiti Putra Malaysia(UPM)Malaysia

The changing dynamics,non-linearity of soil moisture content,as well as other weather and plant variables requires real-time monitoring and accurate predictive model for effective irrigation and crop *** this paper,an improved monitoring and datadriven modelling of the dynamics of parameters affecting the irrigation of mustard leaf plant is *** IoT-based monitoring framework is implemented using ESPresso Lite V2.0 module interfaced with different soil moisture sensors(VH-400),flowmeter(YF-S201)as well as Davis vantage pro 2 weather station to measure soil moisture content,irrigation volume,and computation of the reference evapotranspiration(ETo).The data collected including plant images were transmitted to the Raspberry Pi 3 controller for onward online storage and the data are displayed on the IoT *** combination of both soil moisture and ETo values was used for scheduling a drip irrigated plant grown in a greenhouse for 35 days.A total number of 20,703 experimental data samples are collected from the IoT-based platform was further used for data driven modelling through system identification in *** result shows the development of different predictive models for soil moisture content *** ARX prediction model is found to perform better than the ARMX,BJ and State space model in terms of estimated fit of 91.31%,91.09%,91.08%,and 90.75%***,a robust monitoring framework for irrigation system has been developed,while the performance of the identified ARX model is promising to predict the volumetric soil water content.

关键词： Internet of Things Precision Irrigation System Identification Predictive Model Monitoring Control MATLAB

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An Idyllic Vista of Islamic Banking Enhancement Knowledge Towards Triumph of Knowledge Delivery Process

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Economics World 2019年第1期7卷 38-58页

作者： Adibah Alawiah Osman azwan Abdullah Zatul Karamah ahmad Baharul Ulum Noorshella Che Nawi Muhammad Zulfaris mohd Salleh Universiti Malaysia Kelantan KelantanMalaysia

Definition—Banking or another word of financial institution is taking a role as succor for today’s society as a fast generated processor in handling money ***,Islamic Banking(IB)means the detailed and comprehensive processor in handling money flows according to Shariah principle or Islamic *** approach seems particularly well suited for an individual aims for marketing executives in which the approach is presumably according to the real ***—The purpose of this paper is to develop a heightened framework for process delivery of Islamic Banking(IB)knowledge thru the mediation of Islamic social finance *** framework consists of three define variables:accomplishment of knowledge delivery process in IB,IB enhancement knowledge,and Islamic social finance ***/methodology/approach—The paper used a triangulation *** quantitative approach consists of the collection of primary data through a self‐administered questionnaire distributed to 405 Islamic banks’players in Peninsular *** partial least squares structural equation modelling(PLS-SEM)method was the main statistical technique employed in this *** parallel,qualitative approach was used,in forms of semi structured interviews with four Islamic banks’*** data also gathered from Quran and ***/value—The study has shown that IB enhancement knowledge is discovered to have a significant effect on knowledge delivery process in IB and a partial mediating effect on the relationship between independent variable and dependent *** the results indicate the model provides good illustration of the emerging shape of knowledge delivery process in IB.

关键词： Islamic Banking Islamic social finance attributes delivery knowledge

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