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Nurhafizah Moziyana Mohd Yusop
Universiti Pertahanan Nasional Malaysia

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Cube Arithmetic: Improving Euler Method for Ordinary Differential Equation using Cube Mean Nooraida Samsudin; Nurhafizah Moziyana Mohd Yusop; Syahrul Fahmy; Anis Shahida Niza binti Mokhtar
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 3: September 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v11.i3.pp1109-1113

Abstract

The Euler method is a first-order numerical procedure for solving Ordinary Differential Equation (ODEs) problems. It is an effective and easy method to solve initial value problems. Although Euler provides simple procedure for solving ODEs, there have been issues such as complexity, time of processing and accuracy that compelled the use of other, more complex, methods. Improvements to the Euler method have attracted much attention resulting in numerous modified Euler methods. This paper proposes Cube Arithmetic, a modified Euler method with improved accuracy. The efficiency of Cube Arithmetic was compared with Euler Arithmetic and tested using SCILAB against exact solutions. Results indicate that not only Cube Arithmetic provided solutions that are similar to exact solutions at small step size, but also at higher step size, hence producing more accurate results.
Stress catcher application for mobile stress monitoring using questionnaire-based Aslina Baharum; Siti Hasnah Tanalol; Cheng Xu Jian; Muhammad Omar; Noorsidi Aizuddin Mat Noor; Nurhafizah Moziyana Mohd Yusop
Indonesian Journal of Electrical Engineering and Computer Science Vol 16, No 2: November 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v16.i2.pp917-924

Abstract

Nowadays, stress has become the main reason to cause health problems. The human’s lifestyle has been increasing due to the fast development of technologies which help to improve performance and productivity indirectly increased the burden of human lifestyle. Many studies have done to identify the cause of stress and the effect of stress among university students. However, stress monitoring is not well mentioned in the previous works especially stress monitoring with questionnaire-based. Thus, this research tried to come out with a mobile application that fit to use to monitor the stress level by using a questionnaire. Mobile-D used to identify and develop the mobile application, namely as Stress Catcher. Mobile-D approach allows Test-driven development and it is suitable to use for mobile applications development. A prototype of Stress Catcher will function to prove the usefulness in human lifestyle.
Co-Authors Anis Shahida Niza binti Mokhtar Aslina Baharum Cheng Xu Jian Muhammad Omar Nooraida Samsudin Noorsidi Aizuddin Mat Noor Siti Hasnah Tanalol Syahrul Fahmy