No abstract

No abstract

<span>This study aims to evaluate the effectiveness of teaching aids using M-Learning application for Design and Technology Subjects. A total of 30 students Design and Technology subjects Form 1 of Kubang Kerian High School, Kelantan have answered the questionnaire. This questionnaire consists of five constructs namely Information design, Interaction design, showcase design and Training design (Sketch).This app was developed using ADDIE model. The overall findings of the research showed that the students were difficult to understand the topic of Pictorial Sketch was 2.45 at moderate level. After the study was conducted with the application of EZ Pictorial, the overall study findings rose at a high level of 4.64. This app enhances the level of understanding of the students and provides students with a fun learning situation.It is believed that this app will encourage student to learn difficult subject thus increase the performance of student achievement.</span>

Cathodic arc physical vapor deposition (CAPVD) is one of the promising techniques that have a potential to coat titanium nitride (TiN) on biomedical implants due to its good adhesion and high evaporation rate. However, this method emits microdroplets which have the possible detrimental effect on the coating performance. Past studies indicated that micro droplets can be controlled through proper deposition parameters. In the present work, an attempt was made to study the effect of nitrogen gas flow rates (100 to 300 sccm) on TiN coating of the Ti-13Zr-13Nb biomedical alloy. Scanning electron microscopy (SEM) was used to evaluate surface morphology and coating thickness while crystal phase of the coated substrates was determined using X-Ray Diffraction (XRD). Image analysis software was employed to quantify microdroplets counts. Results show that higher nitrogen gas flow rate able to decrease a significant amount of microdroplets and concurrently increase the thickness of TiN coating. A mixed crystal planes of (111) and (220) are obtained on the coated substrates at this setting which exhibits denser structure with higher adhesion strength as compared to substrates coated at the lower N2 gas flow rate.

No abstract