Syed Abdul Mutalib Al-Junid

Bio: Syed Abdul Mutalib Al-Junid is an academic researcher from Universiti Teknologi MARA. The author has contributed to research in topics: Hardware description language & Tree (data structure). The author has an hindex of 3, co-authored 7 publications receiving 16 citations.

A Statistical Approach for Rubber Seed Clones Classification Using Reflectance Index

Abstract: This paper presents a statistical study for rubber seed clones classification. There are five types of clones from the same series of rubber seed being used as samples in this work which are the PB360, RRIM2009, RRIM2011, RRIM2016 and RRIM2025. The main objective is to identify significant features based on reflectance indices of both lateral and dorsal of the rubber seed surfaces from the application of ZEISS spectrometer instrument. The instrument measures the percentage of reflectance with respect to intensity of safe radiation light being reflected from the seed surface. Empirical analysis is done using SPSS software in order to identify discrimination between the clones. From the observed error plots and one-way ANOVA measurements, it is shown that reflectance indices of lateral surface can be used to recognize significantly the RRIM2009 from the other rubber seed clones.

Study on the capability of Acoustic Energy Harvesting for low power device application

Abstract: This paper investigates the capability of Acoustic Energy Harvesters (AEH) in generating electricity to minimize electricity consumption. In AEHs, piezoelectric materials convert mechanical stress into electrical energy. It generates electricity with the application of stimulus such as pressure or sound. This paper reports on the study of a commercial passive piezoelectric transducer effect on an energy harvesting circuit. The energy generated could be used in low power charging applications such as mobile electronic gadgets. The methodology employed in this study is via the energy harvesting circuit based on Piezoelectric Acoustic Energy Harvester (PEAEH) technique. The study advocates the use of renewable acoustics energy supply system to support green energy applications. One of the strengths of this system is that it could withstand noisy environments such as in industrial areas, train stations, bus terminals or busy roads. Another advantage is that it could create a new service for the public to charge their mobile devices conveniently. Finally, the result of the study contributes in waste minimization of electrical energy and electrical bills.

Overview of Capstone Project implementation in the Faculty of Electrical Engineering, Universiti Teknologi MARA, Malaysia

Abstract: This paper presents an overview of Capstone Project implementation at the Faculty of Electrical Engineering, Universiti Teknologi MARA (UiTM), and discusses the current assessments methods and related issues. The Capstone project marked course outcomes that are strongly correlated with the engineering program requirements of the Engineering Accreditation Council (EAC) in Malaysia. The paper put forward several recommendations to improve assessment methods for evaluating skills involving ethics, and project implications to environmental issues. Self-assessment surveys to evaluate the experience of the students are to be implemented and analyzed in future works.

Implementing Root Raised Cosine (RRC) filter for WCDMA using Xilinx

Abstract: This paper presents implementation of Root Raised Cosine (RRC) filter at transmitter of 3G-WCDMA wireless communication by using VHDL programming language on Field Programmable Logic Array (FPGA). The main objective of this project is to reduce the inter-symbol interference (ISI) which will affect the bandwidth required for transmission the data. MATLAB 7.0 is used to design RRC filter for generating filter coefficient and checking its functionality in WDCMA transmitter. Then RRC filter coding is generated by VHDL in XILINX application and being verified in Model Sim SE 6.3f before it being synthesized using Xilinx ISE Simulator. All the results produced will be verified for make a comparison.

Hybrid memristor-CMOS implementation of logic gates design using LTSpice

Abstract: In this paper, a hybrid memristor-CMOS implementation of logic gates simulated using LTSpice. Memristors' implementation in computer architecture designs explored in various design structures proposed by researchers from all around the world. However, all prior designs have some drawbacks in terms of applicability, scalability, and performance. In this research, logic gates design based on the hybrid memristor-CMOS structure presented. 2-inputs AND, OR, NAND, NOR, XOR, and XNOR are demonstrated with minimum components requirements. In addition, a 1-bit full adder circuit with high performance and low area consumption is also proposed. The proposed full adder only consists of 4 memristors and 7 CMOS transistors. Half design of the adder base on the memristor component created. Through analysis and simulations, the memristor implementation on designing logic gates using memristor-CMOS structure demonstrated using the generalized metastable switch memristor (MSS) model and LTSpice. In conclusion, the proposed approach improves speed and require less area.

Automatic discrimination of grapevine ( Vitis vinifera L.) clones using leaf hyperspectral imaging and partial least squares

Abstract: A worldwide innovative method to discriminate grapevine clones is presented. It is an alternative to ampelography, isozyme and DNA analysis. The spectra and their first and second derivatives of 201 bands in the visible and near-infrared wavelength range between 634 and 759 nm were used as inputs to a classifier created using partial least squares. The spectra were acquired in the laboratory for the adaxial side of the apical part of the main lobe of fully hydrated grapevine leaves. The classifier created allowed the separation of 100 leaves of the Cabernet Sauvignon (Vitis vinifera L.) variety into four clones, namely CS 15, CS 169, CS 685 and CS R5, comprising 25 leaves each. The percentages of leaves correctly classified for these clones were 98·2, 99·2, 100 and 97·8%, respectively, when the classifier input was the second derivative of the normalized spectra. These percentages were determined by Monte-Carlo cross-validation. With the new method proposed, each leaf of a given variety can be classified in a few seconds according to its clone in an environmentally friendly way.

A Review of Energy Harvesting Techniques for Low Power Wide Area Networks (LPWANs)

Abstract: The emergence of Internet of Things (IoT) architectures and applications has been the driver for a rapid growth in wireless technologies for the Machine-to-Machine domain. In this context, a crucial role is being played by the so-called Low Power Wide Area Networks (LPWANs), a bunch of transmission technologies developed to satisfy three main system requirements: low cost, wide transmission range, and low power consumption. This last requirement is especially crucial as IoT infrastructures should operate for long periods on limited quantities of energy: to cope with this limitation, energy harvesting is being applied every day more frequently, and several different techniques are being tested for LPWAN systems. The aim of this survey paper is to provide a detailed overview of the the existing LPWAN systems relying on energy harvesting for their powering. In this context, the different LPWAN technologies and protocols will be discussed and, for each technology, the applied energy harvesting techniques will be described as well as the architecture of the power management units when present.

Hybrid Power Management System for LoRa Communication Using Renewable Energy

Abstract: Energy management efficiency is a topical issue for Internet of Things (IoT) sensor networks because a sensor can be placed in harsh or hardly accessible places and must transmit data without maintenance. One characteristic of the LoRa technology is the high current peaks during the data transmission procedure. These current peaks can decrease the lifetime of the conventional power sources. Thus, to protect the conventional battery of the wireless sensor from degradation during fast discharging, a hybrid energy storage system can help. This article presents the design and development of a LoRaWAN sensor powered by a hybrid energy storage system and an energy management solution that can be integrated into the node. The novel solution presented integrates a 330-mW photovoltaic (PV) panel as a main source, a 4-F supercapacitor and a 230-mA small form factor Lithium battery as backup and it was tested in a real IoT application. Currently, as the most used solution to increase the battery lifetime of a LoRaWAN sensor is to reduce the communication time with the Gateway, our hybrid power management system comes with a solution for the node to be powered for a very long period of more than two years in worst case scenario configuration when the PV panel is not installed and more than ten years with hybrid power solution, without the compromise of reducing the communication time. The achieved communication distance is about 580 m with SF7 and more of 2 km with SF12 in an urban area.

Various grades of red flesh watermelon ripeness based on NIR and VIS reflectance measurement

Abstract: In this study, significant information of red flesh watermelon ripeness is determined by using a spectrometer and Statistical Package for the Social Science (SPSS). A few of red flesh watermelons were measured in both non-destructive and destructive method by using a spectrometer to identify the significant ripeness features in various grades. Visible light (VIS) and near-infrared (NIR) are used as a radiation light of the spectrometer to emit light to the surface of the sample. Percentage of reflectance with respect to the intensity of radiation light being reflected from the surface of the sample then is measured by MCS600 Carl Zeiss spectrometer and the signal is sent to a computer and displayed by Aspect Plus software. By using SPSS software, further numerical analysis is used to measure the relationship between the percentages of reflectance's to identify the relevant information of watermelon ripeness for each grade. The outcomes have shown that it is successfully identified the relationship between watermelon ripeness and the optical wavelength.

Application of systems engineering approach in senior design projects

Abstract: This paper presents a novel approach to maximize the success of the Senior Design Project (SDP) in engineering program and to implement a systematic assessment approach to evaluate the student's performance during such project. SDP shares many characteristics that can be formulated as a complex design problem. Designing and delivering the SDP is achieved by applying a Systems Engineering and utilizing the systems engineering process in the development and production of the SDP of engineering students. The effectiveness of the approach is demonstrated through a case study of civil engineering project at the college of engineering, Shaqra university and the results of a survey that was conducted by the end of the course. The objective of this paper is to show how the systems engineering approach can be beneficial in delivering the final product/system of SDP.