Universiti Teknikal Malaysia Melaka: UTeM Open Journal System
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Semantic Web Representation for Phytochemical Ontology Model
Get PDFNowadays people are more health conscious; they monitor the ingredients and nutrients of what they eat. Fruits and vegetables, which are rich of phytochemicals, are always chosen as a good diet. Phytochemicals are rich of nutrients and can give health benefits to the takers. Previous research has modelled the phytochemicals into its chemical structure and colours according to group of fruits and vegetables ontologically. However, there is no semantic web representation of that ontology model that makes the information more sharable among users. Therefore, in this paper, we develop a semantic web for phytochemical ontology model by linking the user interface to ontology model using JENA framework. The data from the ontology is read by using SPARQL query to display information to the front-end user. By having this semantic web representation, it is hoped that the knowledge is more accessible and shareable among intended users
The Impact of Gate-Induced Drain Leakage (GIDL) on Scaled MOSFETs for Low Power Device
Get PDFIn this research, we investigated the impact of Gate-Induced Drain Leakage (GIDL) on scaled Metal-OxideSemiconductor Field-Effect Transistor (MOSFET) for low power application. The output of this research determined the implications of GIDL on the performance of MOSFET with various sizes that are supplied via low voltage power. The MOSFET design parameters were proposed by referring to the International Technology Roadmap for Semiconductors (ITRS), 2011 edition. SILVACO’s DEVEDIT and ATLAS software was used for this research to design a device structure and obtain output characteristics. Three MOSFETs with different physical gate length and several other parameters were designed and simulated. From the extracted data, it shows that as the size of MOSFET physical gate length become smaller, the leakage current tends to be higher. Apart from GIDL current (IGIDL) value, the “ON” current (ION) value and threshold voltage (VTH) value also been extracted for all MOSFET designs
Raspberry Pi 3 as a Smart Stand-alone POS System in a Small Restaurant Business
Get PDFMost retailers consider Point of Sale (POS) systems as the central component of their business. It is what keeps everything together and allows an efficient flow of service within a business. It is important to know what a POS system really is, it is not one entity. A POS system utilizes software and hardware components, every establishment uses a different combination of hardware and software. This paper aims to show a cost effective POS system that makes use of the raspberry pi 3. The system will be implemented on a small restaurant and will automate order and payment transactions. Notifications to the owner of each transaction will be possible via SMS and access to the inventory via database is also possible via the internet
Analyzing Users' Performance Interacting with a Digitized Traditional Game on Multi-Touch Display Using Fitts's Law
Get PDFThis paper presents an analysis of digitalizing traditional games by using multi-touch digital tabletop through Fitts’s law. The objectives of this paper are to study the accuracy of the user aiming performance using the Fitts’s Law towards the application, and to determine the movement time with different index of difficulty of the application. Besides, it’s to determine the appropriate size of the shooter marble and the target marble for the game design on the multi touch digital tabletop based on traditional games. The development encourage the collaborative works among the children to communicate with each other for increasing their social skills. The conducted experiment concludes the suitable size of the object in the application with the size of tabletop in guiding the user interface (UI) development
Internet-of-Things (IoT) for Human Thermal Comfort: A Simulative Investigation
Get PDFHuman thermal comfort is very important especially in an indoor environment as it can influence human’s health and welfare. In tropical countries like Malaysia, air conditioning system has become a necessary tool in creating a thermally comfortable ambience in an indoor environment. However, the current control mechanism of the system would allow the user to set into maximum cooling – at minimum temperature with maximum fan speed – which not only consumes more energy, but is not creating a thermally comfortable environment as well, as extreme coolness could also bring negative effect towards the human. Therefore, it is essential to integrate human thermal comfort factor into air conditioning system control as well. This paper will highlight the possibility of integrating thermal comfort control into air conditioning system in creating a comfortable indoor environment. It adopts an enhanced version of Predictive Mean Vote (PMV) approach, specifically in creating thermal comfort ambience for a small sedentary work-based indoor space, in tropical countries. As the Internet-of-Things has become a trend in the smart home application, its element is also integrated here, where an Android-based application is developed and tested towards controlling a hardware simulative model which represents an air conditioning system based on the user-defined PMV value. It is shown that the application is able to control the fan speed and temperature through the LED brightness as demanded by the user. It is not only expected to work with a real air conditioning system in the future to create a thermally comfortable environment, but could also allow the system to be operated in energy and cost-efficient manner
Development of Miniature Compressed Air Storage System Using Solenoid Valves for Dynamic Pneumatic Actuator
Get PDFCurrently, there are many research that involved pneumatic device on vehicles. There are some applications using compressed air storage system to produce vehicle power. However, there are several constraints in producing compressed air for outdoor purpose, since most of the compressors are in large size which will cause limited working space. Also, most of the compressors are not portable and hand-carrying size. This paper objective is to investigate the parameters of a miniature air compressor during the reciprocation process and to analyze the compressed air pressure of piston type double-acting cylinder for the miniature air compressor. The piston rod is connected to connecting rod for mechanical movement, which the movement of the rod will convert kinetic energy to the piston and generate compressed air inside the storage tank. The system design allows the air into the tank to increase via reciprocating cylinder. Number of strokes produced is investigated. Subsequently, pressurized air inside the tank can be used to generate kinetic power to the pneumatic actuator. The force generated from the mechanism is then measured. Synchronization of 5/3 Ways Directional Control Valves (DCV) is the key of the system to ensure the flow of compressed air wellkept in the storage tank. The pressurized air inside the tank transfers the power into kinetic movement via reciprocating piston and able to generate 200kPa of compressed air
A Comparison of Real-Time Extraction between Chebyshev and Butterworth Method for SSVEP Brain Signals
Get PDFIn this paper, a comparison of real-time extraction using the IIR Chebyshev of 4 order and the IIR Butterworth of 6 order methods is proposed. In the Experiment, the steady-state visual evoked potential with stimuli frequencies of 7,5 10, 15, and 20 Hz is used to control the wheelchair directions (i.e., stop, forward, right, and left). The data were collected from a session in which fourteen subjects with age about 24±2 years were tested. The total average classification accuracy of 82% and 62.2% for Chebychev and Butterworth extraction method are achieved. The higher average classification accuracy of 100% and 92.8% for both methods, respectively, are obtained for forward direction (8.75-12.5Hz)
Technological Disaster Prevention: Technological Risks Assessment Process on High Technological Risk Supply Chain Activities
No full textTechnological risks approach silently and yet deadly. Once overlooked, technological disaster incident may occur- asset damage or even losses of human life. Negative impact of technological disaster may lead to organization supply chain toward disruption as organization facilities and labor force been impacted. Based on the circumstances, it is time to establish a technological risk assessment process to identify and assess technological risks along high technological supply chain activities. One of the largest petroleum organizations “Organization P” has been selected to investigate how the company assesses technological risks on supply chain activities and the technological risk factors that contain in each supply chain activities. A series of interview was conducted to collect respondent’s answer, while collected data were analyzed qualitatively. As conclusion, organization P obtained great achievement on technological disaster prevention as risk assessment process been enforces to assess risks on each supply chain activities. The technological risk assessment process contributes on preventing supply chain disruption while the identified technological risks demonstrated the high technological risk supply chain which contains double types of risks
Elastic Interactions of Osteon-Crack Penetration in Longitudinal Fracture
Get PDFLongitudinal fracture of cortical bone involves complex elastic interaction between interstitial matrix, cement line, osteon and Haversian canal. Based on Kachanov theory of microcrack and hole interaction, there is effective impact interaction between different elastic moduli, and interaction between stress risers. This paper aims to numerically evaluate the effect of different Young’s modulus in osteonal system structure for four-phase constituents (anterior, posterior, medial and lateral) in Haversian bone system particularly in longitudinal crack direction. The interaction between single crack and Haversian canal in crack-osteon penetration process is analysed based on linear elastic fracture mechanics (LEFM) with plain strain condition. Stress interaction intensities are compared to Brown and Srawley empirical formulation. The simulation results showed that the elastic interaction before the osteon penetration is consistent and stable