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Publication

A framework design of web-based knowledge management system with NoSQL database

( 2023)

Rhui Jaan Ong

;

Rafikha Aliana A Raof

;

Suhizaz Sudin

;

Kar Yan Choong

In today's dynamic and information-rich environment, effective knowledge management has emerged as a critical determinant for organizations seeking to take advantage of intellectual resources. Nevertheless, it is unrealistic to expect experts who lack a background in Information and Communications Technology (ICT) to possess an advanced level of technological proficiency or linguistic analytical skills. This study provides a comprehensive framework targeted at developing a Web-based Knowledge Management System (WKMS) coupled with chatbot application that is precisely tuned to meet the complex challenges of organizing, disseminating, and utilizing knowledge related to agriculture sector. This paper elaborates on a framework from both functional and technical perspectives, including the identification of knowledge origins, the establishment of mechanisms for capturing and sharing knowledge, and the facilitation of collaborative knowledge generation. This study employing a methodological approach and adopts a three-tier architecture for framework construction, coupled with text processing for data preparation. The findings emphasize that a successful WKMS should prioritize not only technology infrastructure but also strategies for building a culture favorable to information exchange. This paradigm lays the groundwork for enhanced discovery, innovation, and decision-making in a variety of professional fields by fusing theoretical insights and pragmatic considerations.

Publication

A new approach for Face Recognition based on Iris detection

( 2004)

Mohamed Rizon

I propose a system to identify the unknown person in a face image for which the position, scale and image-plane rotation of the face are unknown. The proposed system detects the iris of both eyes and normalizes the position, scale and image-plane rotation of the face using iris positions. The algorithm measures the degree of matching bet/en the image and the face template of each person using normalized cross-correlation value. Recognition of a person is done using the highest degree of matching. The execution time of the recognition is 0. 66 [seconds] with Pentium IV, 2. BGHz.

Publication

A novel mosquitoes repellent soap based on Azadirachta indica and Eucalyptus citriodora oil

( 2005)

Khairul Farihan Kasim

;

Harbant, S.

;

Hunter, M.

;

Mohd Noor Ahmad

The use of Azadirachta indica and Eucalyptus citriodora oil is a two stage repellent system for the soap, where E. citriodora offers short term repellency and the A. indica component offers longer term efficacy effects. Both materials (A. indica and E. citriodora) are from natural sources and locally available. This is the first time the two natural agents have been combined into a single product, thus providing synergy and longer term residual efficacy than present herbs and E. citriodora oil used in similar types of products in the market. This is cost effective product to combat mosquitoes as well as personal soap for everyday use.

Publication

A study and investigation of small antenna efficiency measurement using reverberation chamber

( 2006)

Azremi Abdullah Al-Hadi

;

Soh Ping Jack

;

Anuar Mat Safar

Numbers of small antennas were designed and various kind of antennas were tested for measurement. Amplitude fluctuations in signals received over mobile radio channels are typically modeled by Rayleigh distribution. The field statistics in the volume of the enclosure are shown to correspond to the Rayleigh statistics found in properly functioning reverbration chambers when a sufficiently large number of modes are excited. The purpose of this paper is to show that the antenna efficiency can be measured accurately in much faster, easier and cost effectively reverberation chamber using three different antennas (two monopole antennas with attenuator and surface mount resistor, and modified folded monopole patch antenna). It also gives an investigation of the statistical characteristics in Rayleigh communications channels by using reverberation chamber. Scattering parameters taken from the measurement of the antenna radiation efficiency using reverberation chamber is implemented into Rayleigh Probability Density Function (PDF) model and it really shows that they are in good agreement with those of theoritically predicted Rayleigh model.

Publication

A study of embedded fuzzy logic to determine artificial stingless bee hive condition and honey volume

( 2024)

Bukhari Ilias

;

Norasmadi Abdul Rahim

;

Shazmin Aniza Abdul Shukor

;

Abdul Hamid Adom

;

Muhammad Ammar Asyraf Che Ali

;

Mohd Al-Haffiz Saad

;

Mohd Fauzi Abu Hassan

Stingless Bee is particularly nutrient-dense in his honey. Therefore, numerous beekeepers for the Stingless Bee have begun this agricultural enterprise, particularly in Malaysia. However, beekeepers encounter challenges when caring for an excessively large stingless bee colony. Due to the risk of causing colony disruption, the beekeeper cannot always access the hives to monitor honey volume and hive condition. Consequently, the purpose of this paper is to aid beekeepers and prevent disruption to bee colonies by determining the condition of the hive and the quantity of honey using an embedded fuzzy logic system. Artificial hives have been created in order to easily measure the weight of a hive of stingless bees and to divide the honey compartment from the brood compartment in order to calculate the honey volume. Since the stingless bee designs its colony with honey on top and larvae on the bottom, honey volume can be determined by weighing the honey compartment using load cell and internal humidity using dht22. DHT22 is used for measuring the internal temperature and humidity, as previous papers have stated that the hive condition can be determined using the internal temperature and humidity. Morever, FLDa (Fuzzy Logic Designer app) by MATLAB was subsequently utilised to construct membership function, rules, fuzzification, and defuzzification. Then, the same input, membership function, and rules that used in FLDa will be implemented on the Nodemcu ESP8266 using eFLL (Embedded Fuzzy Logic Library). A comparison between the crisp output from FLDa and the crisp output from eFLL was conducted to determine whether eFLL is suitable for use in the NodeMCU ESP8266. As a consequence, the standard deviationand averaged percentage error of differences for hive condition, which is 0.22 and 0.17%, isless than the honey volume, which is 0.49 and 0.66%, because hive condition has a strict correlation with temperature. The hive condition will be rated bad (0% when the temperature is cold or hot state), but it will be rated good (100% when the temperature is normal state). As for honey volume, the majority of results correspond to the percentage of honey compartment weight, unless the humidity is dry state, which will cause the value to be cut in half. Finally, the fuzzy logic system is effectively implemented into an embedded system, making it easier for the beekeeper to monitor the hive condition and honey volume without interfering with the activity of stingless bees.

Publication

A study of heat insulation methods for enhancing the internal temperature on artificial stingless bee hive

( 2024)

Muhammad Ammar Asyraf Che Ali

;

Bukhari Ilias

;

Norasmadi Abdul Rahim

;

Shazmin Aniza Abdul Shukor

;

Abdul Hamid Adom

;

Mohd Fauzi Abu Hassan

The stingless bees have gained a large popularity among the beekeepers, particularly in tropical and subtropical regions such as the Americas, Africa, and Southeast Asia. This is because the honey of stingless bees has a distinct flavour and is highly valued for its medicinal qualities. Traditionally, stingless bee colonies constructed from wood logs are fragile and vulnerable to outside attacks. These predator or parasite attacks can cause Colony Collapse Disorder (CCD) if not eliminated. Thus, a PVC, 3D-printed PET-G, and acrylic artificial hive has been created to replace the old one. According to earlier research, stingless bees are especially susceptible to temperatures above 38°C. This paper's main goal is to discuss the results of studies on the best artificial hive insulation method. Over a month and a half, clay, wood powder, polystyrene, bubble aluminium foil, and a water- cooling system were tested as insulators. Results shows that artificial hives with bubble aluminium foil have the biggest average difference between internal and external temperatures (6.4°C) and are closest to traditional hives (8.6°C). The average temperature difference between the artificial hive's exterior and inside was 2.9°C without heat insulation. Clay-insulated artificial hives have the lowest standard deviation value for humidity at 0.46. Since temperature is vital to stingless bee survival, bubble aluminium foil container is the best insulation solution since it increases heat resistance more than other materials.

Publication

An Undergraduate Micro Fabrication Course at the Northern Malaysia University College of Engineering

( 2004)

Uda Hashim

;

Zul Azhar Zahid Jamal

This paper presents the development of a new course conducted by the School of Microelectronic Engineering at the Northern Malaysia University College of Engineering or Kolej Universiti Kejuruteraan Utara Malaysia (KUKUM) in the area of microfabrication. Two related courses offered by the School are namely, semiconductor process technology and microelectronic fabrication. The course consists of a lecture and laboratory component. It is a new approach, as compared to the conventional undergraduate program, which is designed with 60% of the students' contact time, is dedicated to laboratory and workshop work, while the other 40% is for lectures. Therefore, a new 115m2 c/eanroom was developed and equipped with all basic tools that is necessary to fabricate and test microelectronic devices. The setup is mainly to expose the student with actual c/eanroom operation environment. The course content and the format of the courses are presented. The detailof the synopsis and the list of custom designed experiment for both courses are a/so provided. Such curriculum developed and offered by KUKUM is geared towards promoting the National Industrial Master Plan, especially in the semiconductor industry

Publication

Analysis of Bulk Second-Order Ferroelectric Switching in Oscillatory Dynamical System

( 2004)

Mohamad Nazri Abdul Halif

;

Junaidah Osman

A detailed analysis of polarization reversal in bulk for second-order ferroelectric (FE) phase transition material in the framework of the Landau model is presented. We focus on the changes of polarization p and its switching current j with respect to time tin the presence of an external electric field E . By using the Landau-Khalatnikov (L-K) equation of motion, the dynamics of the FE material based on the oscillatory system is assumed. The changes in polarization and switching with respect to the different value of and temperature are ~ analyzed via numerical results.

Publication

Analysis of the effect of solar temperature and radiation on characteristics I-V on 170 WP photovoltaic module based on matlab simulink

( 2021)

Muzamir Isa

;

Nik Muhammad Azhar Nik Daud

;

Arnawan Hasibuan

;

Hendra Marjuli

The need for greater energy use and the depletion of conventional fuels makes scientists start researching renewable energy that can be used as a substitute for energy in the future. One of them is through the potential generated by solar energy. Solar Power Plant (PLTS) is an alternative power plant that utilizes solar radiation to then be converted through a photovoltaic process to produce direct current electrical energy. In its utilization, when coupled with other components such as a solar charge controller, battery, and inverter it can be converted into alternating electric current that can be used for daily needs, both on a small and large scale. In this paper, the author will discuss the current and voltage characteristics of a 170 WP photovoltaic module with variations in temperature and intensity of sunlight. This study aims to describe the characteristics of solar cells and describe the graph of current against voltage and graph of power against voltage for various temperatures and solar radiation. This research method was carried out using the Matlab-Simulink software to simulate the photovoltaic module. Based on the results and discussion, the current, voltage and power values are obtained which are then made a graph of the current and voltage relationship and a graph of the power and voltage relationship.

Publication

Aplikasi Pemodulat Keamatan Elektro-Optik dalam Sistem Komunikasi Optik

( 2004)

Sabarina Ismail

Tumpuan kepada perlaksanaan projek ini ada/ah untuk menganalisa sifat pemodu/at keamatan e/ektro-optik Mach Zehnder yang mana sifat penghantaran optiknya dalam sistem komunikasi bo/eh dikawal oleh medan e/ektrik yang dibeka/kan. Kendalian peranti ini ada/ah berasaskan kesan e/ektro-optik linear (Pockets) yang biasa dan lithium niobate (LiNbO) diambil kira sebagai bahan peranti kerana ia memungkinkan kecekapan yang tinggi bagi aplikasi seperti kawalan pemodulatan dan pensuisan. Medan Elektrik akan memodulat cahaya optik dari laser dengan mengubah keamatan cahaya optik ke/uaran. Projek inijuga memfokuskan kepada penganalisaaan terhadap kesan medan e/ektrik e/ektrod ke atas ciri-ciri fasa ge/ombang, kuasa pemacu optima yang diperlukan o/eh pemodulat tersebut dengan menetapkan beberapa parameter peranti tersebut. Bagi menganalisis kesan e/ektro-optik, pengiraan matematik dibuat menggunakan perisian simulasi MATLAB dan BPM_CAD (Beam Propagation Method). Perubahan fasa cahaya mempengaruhi keamatan ke/uaran cahaya berdasarkan nilai (V,) volt an separuh gelombang peranti pemodulat yang dipero/ehi.

Publication

Artificial intelligence techniques In IC chip marking inspection

( 2005)

M. Karthigayan

;

R. Nagarajan

;

Sazali Yaacob

;

Paulraj Pandian

;

Mohamed Rizon

In this paper, an industrial machine vision system incorporating Optical Character Recognition (OCR) is employed to inspect the marking on the Integrated Circuit (/C) Chips. This inspection is carried out while the /Cs are coming out from the manufacturing line. A TSSOP-DGG type of /C package from Texas Instrument is used in this investigation. The /C chips markings are laser printed. This inspection system tests are laser printed marking on IC chips and are according to the specifications. Artificial intelligence (AI) techniques are used in this inspection. AI techniques utilized are neural network and fuzzy logic. The inspection is carried out to find the print errors; such as illegible character, upside down print and missing characters. The vision inspection of the printed markings on the /C chip is carried out in three phases, namely, image preprocessing, feature extraction and classification. MATLAB platform and its toolboxes are used for designing the inspection processing technique. The percentage of accuracy of the classification is found to be between 97%- 100%

Publication

Automobile service management and reminder system

( 2021)

Chitramugil Raman

;

Wan Hussain Wan Ishak

;

Fadhilah Mat Yamin

The reminder system is an important tool that can assist its user in remembering items that require more attention. Automobile servicing, for example, is one of the jobs that must be done as scheduled. However, many automobile owners fail to adhere to the service schedule for a variety of reasons, one of which is forgetting the appointment date. It's much worse if the automobile owner doesn't keep track of previous servicing appointments. This makes it difficult to decide what to service because some parts require regular servicing and maintenance. Thus, this article presented an Automobile Service E-Assistant to assist automobile owners in managing their vehicle and service data. Most crucially, the system will send a reminder to the automobile owner to remind him or her of the next service assignment. The system is a web-based application that can be accessed with any browser, on either a PC or a mobile device. The usability evaluation was conducted based on the Website Analysis and MeasureMent Inventory (WAMMI) five components: attractiveness, controllability, efficiency, helpfulness, and learnability. The findings show that the respondents deemed the website to be a helpful tool in organising their service activities. This illustrates that the system has the potential to be a helpful and supportive tool for car owners.

Publication

Beyond the roads: a comprehensive review of the influencing factors on the effectiveness of Malaysia's passenger vehicle industry within the automotive policy framework

( 2023)

Ooi Shir May

;

Asmat Nizam Abdul Talib

;

Christopher Richardson

;

Afifah Alwani Ramlee

;

Farza Gadissa Fitri

Within the framework of the National Automotive Policy 2020, the purpose of this study is to evaluate the elements that affect the effectiveness of the passenger vehicle sector. The main objective of this study is to assess the elements that affect the effectiveness of the passenger vehicle sector. In this study, a complete literature review and an analysis of empirical data are used to investigate several aspects of economic, including government regulations, market demand, and technological advancements, The findings contribute to a deeper knowledge of the effect that the National Automotive Policy has had on the passenger vehicle and provide policymakers, industry stakeholders, and researchers who are interested in enhancing its efficacy with suggestions for improvement. In addition, the findings contribute to a better comprehension of the effect that the National Automotive Policy has had on the passenger vehicle industry.

Publication

Comparison study between weight training and Fartlek to improve the running speed of trainee teachers in the 100-meter event latest

( 2023)

Kumaran Gengatharan

;

Nur Eliyawaton Mohd Alias

;

Noor Hayati Arriffin

;

Ng Kheng Loon

;

Mohamad Nasrullah Nasiruddin

The purpose of this study is to compare the effectiveness of weight training and Fartlek in improving the running speed of trainee teachers in the 100-meter event. The study aims to determine which training method is more effective in enhancing running speed. The study participants were randomly assigned to either weight training or fartlek groups and underwent their respective training programs for four weeks. The running speed of both groups was evaluated and compared using a standardized assessment tool. The results of this study will contribute to the existing knowledge on the benefits and limitations of weight training and Fartlek in improving running speed. The t-test showed that there is no significant difference between the two means among both training groups and its proven that both weight training and Fartlek training is suitable is improving the running speed of trainee teachers in 100-meter event. This study is expected to provide valuable information for coaches, trainers, and physical educators in developing effective training programs for athletes and physical education students. and reduce labor costs and water wastage and increase productivity and efficiency.

Publication

Concrete Ceramic Waste Slab (CCWS)

( 2006)

Mohd. Mustafa Al Bakri Abdullah

;

Kamarudin Hussin

;

Che Mohd Ruzaidi

;

Shamsul Baharin

;

Rozaimah Ramly

;

Nur Khairiatun Nisa

The main focus of this research is to study the strength of concrete with ceramic waste as coarse aggregate. The sources of ceramic waste are obtained from the industrial in Malaysia. Presently, in ceramics industries the production goes as waste, which is not under going the recycle process yet. In this study an attempt has been made to find the suitability of the ceramic industrial wastes as a possible replacement for conventional crushed stone coarse. Experiment were carried out to determine the strength of concrete with ceramic waste coarse aggregate to compare them with the conventional concrete made (with crushed stone coarse af}gregate). The properties of the aggregate were also compared. The results show, compressive strength of concrete with ceramic waste coarse aggregate was 85%-100% which indicates that the result is comparable to conventional concrete.

Publication

Confirmatory Factor Analysis (CFA) for Permit to Work (PTW) on occupational accident at Petrochemical Complex, Kerteh Terengganu

( 2021)

Zamri Chik

;

Abdul Hakim Abdullah

;

Mokhtar Lotfi Mohamed

;

Nizar Jusoh

;

Ali Hashim

;

Abdullah Zawawi Mohd Noor

;

Salleh Said

;

Kamarufarahiah Kamaruddin

There are a series of Process and Occupational Accidents occurring offshore and onshore facilities. It is disturbing that some of the Chemical Industrial accidents in all maintenance and construction activities despite having Permit to Work (PTW) to control the activities. Using quantitative research methods based on Structural Equation Modeling (SEM), this study to determine the purpose of this study was to examine the Confirmatory Factor Analysis (CFA) for PTW (work description, hazardous activity, work inspection, supporting document, and closeout) on occupational accidents. A total of 260 research samples were included in the study. Data were analyzed using IBM-SPSS-AMOS (SEM) program version 21.0. SEM analysis consists of two main models: the measurement model and structural model. Before the SEM test, some adjustment tests to ensure that the tested indicator represented the measured construct. The findings show that all constructs PTW show the compatibility of the hypothetical models tested is verified using the Fitness Indexes to see the values of Root Mean Square Error of Approximation, Goodness of Fit Index, Comparative Fit Index and Chi-Square/Degree of Freedom. Combined factorization analysis of all measurement models shows that the three categories of model compatibility indexes achieved for all models of constructs and discriminant validity.

Publication

Cost effective negative Plenum Cleanroom for Microelectronic Engineering undergraduate

( 2005)

Uda Hashim

;

Zul Azhar Zahid Jamal

;

Mohammad Nuzaihan Md Nor

;

Nur Hamidah Abdul Halim

he Negative Plenum Cleanroom which is design and built by KUKUM is primarily used for the teaching of the undergraduate microelectronic course. The cleanroom is approximately 115m² in size. The level of cleanliness in the cleanroom ranges from ISO Class 5 (Yellow Room) to ISO Class 8 (Grey Area/Utility Chase). The cleanroom is constructed with a negative plenum to house the fan filter units, which make it different from other commercially available cleanrooms. With negative plenum, maintenance work cost will be reduced and make the cleanroom life longer. The main intention of this project is to expose and teach students to appreciate the stringent cleanroom protocols, health and safety requirement in addition to the formal course works.

Publication

Cost of energy losses analysis using a hybrid evolutionary programming-firefly algorithm for distributed generation installation

( 2022)

Noor Najwa Husnaini Mohammad Husni

;

Siti Rafidah Abdul Rahim

;

Mohd Rafi Adzman

;

Muhammad Hatta Hussain

;

Ismail Musirin

This paper presents the Hybrid Evolutionary Programming-Firefly Algorithm (EPFA) technique for the cost of energy losses analysis of distributed generation (DG). In this study, EPFA is developed to determine the optimal size of DG while considering the system’s energy losses. EPFA is developed based on embedded Firefly Algorithm (FA) properties into the classical EP technique. The objective of this study was to reduce the cost of energy losses while increasing the voltage profile and minimizing distribution system losses between the different operational strategies and types of DG. In this study, the analysis was done by considering DG type 1 and DG type 2. The proposed technique was tested using the IEEE 69-bus test system. In terms of economic concerns, power system planners can use the information acquired for utility planning to determine the right location and capacity of DG. Finally, the proposed method can determine the appropriate DG sizing while reducing the cost of energy losses and total losses in the system, based on the simulation results.

Publication

Design and development of green trash compactor for recyclable waste management

( 2024)

Nurul Amira Mohd Ramli

;

Mohd Hafiz Fazalul Rahiman

;

Law Heng Yi Henry

A trash compactor is a mechanical device invented to reduce the volume of trash, making it suitable for use in various scenes such as domestic, public, and industries. Utilizing this kind of machine provides significant benefits in the waste accumulation system, as it allows for more efficient waste management by compacting the trash, enabling larger quantities to be collected at once. In this study, a Green Trash Compactor is designed and developed as an innovative semi-automated machine to efficiently reduce the size and volume of recyclable materials such as plastics, paper cups, and PET bottles. The project focuses on optimizing the sensor layout to minimize the impact during the compaction process, thereby reducing the requirement for heavy load cells or weight sensors. The working output is achieved by recording different input commands through buttons, where the system employs load cells to identify the detected force, and the microcontroller makes corresponding decisions. The results indicated that the Green Trash Compactor successfully operated with its mechanical and programmed codes, demonstrating impressive volume reduction during the compaction process. This substantial reduction in volume contributes to lowering transportation costs for the trash, making the compactor a highly efficient waste management solution.

Publication

Design of remote warning system for Miniature Circuit Breaker (MCB) power shortage via Internet of Things (IoT)

( 2022)

Lim Hong Quan

;

Mohd Zamri Hasan

;

Nurul Syahirah Khalid

In this modern era, the Internet of Things (IoT) technology is a new profound technology which leads to a better and easy lifestyle world. With this technology, office workers will not require to present in a company and industrial workers will no longer needed in a factory to monitor manufacture process. With this new and promising technology, most of the work can be done at home by using mobile phone or a computer and even a machine can run itself with a single button. As the title of the project presented, the project proposed an application of the Miniature Circuit Breaker (MCB) using the technology of the IoT. This project is a warning system when a black out occurs, it will send a message to the user to inform about the trips through a mobile phone. Sometimes, workers overlook the short circuit of the machine which results in a loss to the company and delay of the product. In this project, a prototype of the MCB system with the IoT technology will be developed and created to achieve the objective of project. Furthermore, the prototype will be tested to show that the prototype is functional and efficient as it is a remote warning system via Wi-Fi.

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