Universiti Teknikal Malaysia Melaka: UTeM Open Journal System
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Ergonomic Chair Design For Thermal Comfort Using Phase Change Materials
Full text linkThe metabolism process of humanoids is well designed for emitting the heat constantly. But no heat transfer phenomena occur from the spinal side of the body in sitting posture. The proper heat transfer is arrested in the sitting posture; this makes the human to feel discomfort. The bus drivers are the main victims who face this problem every day and cause of the disease called “hemorrhoid”. This project mainly focused to modify and construct a convenient chilled cushion chair with jam-backed Phase Change Material (PCM) to overcome such problems. This chair absorbs body heat when occupied and discharges while vacant. The stages when liquid change to solid and solid change to liquid occurs nearly by a constant temperature. The chair provides a cooling effect and also a cushioning effect to the occupier. The PCMs are having large latent heat and provide a cooling effect by maintaining nearly by constant temperature to the human body. The jam-backed chilled cushion chair is invented for improved thermal comfort for the driver for some extended time by the proper temperature that acceptable level of the human. The performance tests are carried out to evaluate the working of the pad
Design of Wireless Automatic Microwave Antenna Alignment System
Full text linkMicrowave link aligning is an important operation in communication systems. Misalignment in line of sight link due to rain, wind etc considered the basic problem that faced the microwave system. This problem caused a direct terminating of the microwave link. Automatic antenna alignment will guarantee best communication at the link’s ends without any risks of human interface. This paper presented a low cost design of an automatic antenna alignment system based on arduino and using Xbee wireless technology. The design in the paper is automatically adjusting the horizontal and vertical angles in the transmitter and receiver sides of the microwave link. The controller compared the measured values of these two angles with a reference values. The correction of the error in the angles is done by moving the antenna towards the correct position. The design was tested in different angles positions and the results were reported in the paper. The simulation results ensure that the system works successfully
Reducing Wastage In Electricity Usage Through The Use Of Advancement In GSM Technology
Full text linkDue to epileptic nature of electricity in developing economy like Nigeria, people have their electrical loads on mistakenly when leaving homes for offices or offices for homes; and this normally resulting in energy wastages and inefficiencies. These wastages are very detrimental to industrial development; therefore, there is need to make use of advancement in technology to reduce wastage in electricity usage. To that effect, this paper proposes a device that can control home appliances via Global System for Mobile Communication network so as to reduce electrical energy wastages and consequently, enhance industrial sectors growth. In addition, the proposed device will inform the user when utility board restores electricity on the user’s mobile line, display on the mobile line of the user the states of all the connected appliances and receive appropriate command from the user, to either switch ON or OFF specified appliance(s). The various results obtained when the proposed device was tested revealed that it worked according to the design specifications
Padimedical: Medical Image Sharing Portal with DICOM Viewer – User Experience
Full text linkDigital Imaging and Communication in Medicine (DICOM) is a standard medical imaging format for medical imaging information and data. Availability to access DICOM files remotely using smartphones has shown to improve healthcare systems especially for communication between doctors fromdifferent centres. Most of DICOM files need to be viewed using conventional institutional DICOM viewer. We developed software which allows medical personnel to access DICOM images remotely from their smartphone. This newly created software platform is named Padimedical. This pilot study aims to evaluate users’ satisfaction and usability. Practising medical doctors from a radiology department in a tertiary referral centre were chosen as correspondents in this study. The survey form was sent to over 30 doctors via email. A total of 24 out of 30 respondents completed the survey. The survey showed that Padimedical DICOM viewer was easily accessible (100%), compatible with OS operating system (100%), user-friendly (87.1%), and high signal to noise ratio (100%). All respondents (100%) agreed that the image viewing was smooth and responsive. All respondents would recommend to their peers (n=24). A total of 18 respondents suggested that the quality of images was high (76%) and 23 respondents suggested that the contents in this newly created platform were easy to share (96.15%). All the participants were able to make the correct diagnosis using Padimedical. Overall, the rating of our platform is 4.3 out of 5. Conclusion: Based on this pilot survey, Padimedical software was easily accessible remotely using smartphones, compatible with OS operating system, viewing images were smooth and responsive, produce high-quality image, and easy to share DICOM contents.Keywords—DICOM, images, software
Design of Intelligent System for Visually Impaired to Access the Required Location
No full textThe percentage of blinds according to the world health organization is 0.4% of the population in industrialized countries and it rises to 1% in the developing countries.This paper aimed to help these categories of people to overcome their problems to move towards any location independently. The design in this paper specified three paths in the University of Gezira to help the visually impaired students to reach different places in the university campus easily. These paths were monitored and controlled using GPS and raspberry pi technology. Three switches were used to help the blind to select his path. An important feature was provided by this system, in which when the blind gets out of the selected path, the system automatically determined how far he is away from the path and a voice massage alerted him and guided him through headphone to return in the path. Ultrasonic sensors are used to alert for any detected obstacle along the path. Moreover, the system automatically calculated the distance between the blind and obstacle, which allows the blind to avoid it easily. This system informs the blind the distance that remains to reach to the required destination. The design has been experimentally tested and the results showed that the guiding system works correctly, which proved the ability to generalize this system in other places
Distributed Content Communication Architecture for the Development of Aerocity Area
No full textThe content distribution and retrieval efficiency are needed to have a business process flow. Several conditions are often a problem in a communication network, so an effort is required to provide architectural models that meet the required needed, especially in the Aerocity area. Therefore, content distribution and retrieval architecture are needed through communication networks that match the characteristics of the Aerocity area, which are generally divided into clusters, ranging from airport clusters, housing, commercial businesses, and others. Research that deals explicitly with this field is still not widely available. This paper aims to discuss the distribution and retrieval model of content that can be developed using a distributed system approach. Besides, this paper will provide a review of previous studies and propose architectural models
Oracle DBMS Scheduler Package for Data Integrity Test on Web-Based Application
No full textDBMS Scheduler Package is one of Oracle DBMS Packages that has the ability to perform automatic execution of data management at a predefined time. Oracle DBMS Scheduler is able to be integrated with Oracle Application Express on a web-based application. Web-based application can be accessed by a huge number of concurrent users that uses the same data on the database. On some conditions, users will not be allowed to change their data until the state of the current data is closed to maintain the data integrity, for example the scheduling data on university scheduling guidance between lecturers and students, where the student must not create another schedule until the existing schedule is closed. Data Integrity test is done by implementing web testing. This research found that the Oracle DBMS Scheduler Package is able to maintain data integrity on Web Based Application by closing the reservation schedule slot automatically
Hygrothermal Effect on MWCNT-Filled Epoxy Electrically Conductive Adhesives
Full text linkTo-date, limited studies are found in the literature on the reliability performance of electrically conductive adhesive (ECA) using multiwalled carbon nanotube (MWCNT) fillers. Hence, this study aims to provide an understanding on the performance of the ECA with the objectives (i) to study the electrical conductivity and (ii) joint strength of ECA with varying conductive filler’s aspect ratio and environmental conditions. Here, epoxy with MWCNT aspect ratio of 55.5 and 1666.5 were subjected to 85°C and 85% RH for up to 96 hours. The test specimens were prepared in accordance with ASTM F390-11 using a four-point probe for electrical conductivity measurement while the lap shear test was conducted with reference to ASTM D1002-10 using a universal testing machine. For the thermal aging study, the ECA samples were conditioned in a humidity chamber at 85 °C and 85 % of relative humidity to assess the reliability performance of the ECA. Overall, it was found that ECA filled with higher aspect ratio of MWCNT exhibit better electrical and mechanical stability when subjected to hygrothermal aging. Moreover, the presence of moisture attack has yield in an increase in the electrical conductivity of the ECA with thermal aging period. Meanwhile, lap shear test results revealed a contradicting trend. Regardless of the amount of MWCNT filler loading, voids are created in the epoxy matrix of the ECA, which results in a decrease in the shear strength of the ECA, when the samples were subjected to thermal aging
The Challenges faced by Public Sector Governance in implementing e-Procurement System: A Case Study of Education Department of Malacca
No full textPreviously, public procurement was conducted through manual process which involve huge of paper and space arrangement. Not to mention cost that incurred throughout the process. However, the evolution of technology together with the environmental insistence, traditional public procurement is no longer relevant. E-procurement has replaced traditional method without putting aside all the policies and circulars in public procurement. This study highlighted the challenges faced by procurement unit in implementing “the new e-procurement” (known as e-perolehan baharu) in early 2018 such as lacking in ICT support and facilities, financial and human resource constraint, inadequate knowledge and technical skills of the system and behaviour of resistant to change. These challenges affected procurement process as a whole, especially the Small and Medium Enterprise (SMEs). This paper concluded that the government should pay more attention towards the preparation of facilities and ICT support prior the implementation of e-perolehan baharu by all agencies and government organizations.
Purchase Intention of Customers Toward Health Products in Melaka State
Full text linkAbstract - Currently, the number of companies offering health products is increasing over the years. This varied range of options available for customers has driven the researchers to dig out what the factors are that influence the intentions of purchasing by customers. The importance of this research was to actually realize what are the factors that could impact the behavior of customers in deciding which product to be purchased or to be bought. The objectives of this research are to investigate the impact or relationship of customer knowledge, product performance, and health concern towards the purchase intention of consumers toward health products. In addition, the research is classified as a descriptive study to collect data by using a quantitative method. The researcher had distributed survey questionnaires to 201 respondents through online distribution after manual questionnaires have been answered by 20 respondents during the pilot test. Data gathered and analyzed by using SPSS software. The results obtained showed significant influences between customer experience, customer attitude, perceived values, perceived usefulness, and health background on purchase intention of consumers toward health products. However, perceived ease of use and health awareness failed to achieve a significant correlation with the intention of purchase by consumers. Based on the discussions made on findings, this research may be able to be explored deeper view through further research in the future and eventually contributing to the industry.Keywords - Health products, customer attitude, customer experiences, perceived values, perceived usefulness, health background, purchase intention towards health product