An S-Curve Efficient Frontier For Evaluation Model

A normal distribution has been an ideal model in providing mental picture on a distribution of an object. A normal distribution projects a global view on a variation of an object which is expected to spread. This mental picture signifies an ideal view on statistic motion in the past three centuries. A simple linear regression has been a practical predictive model following a normal distribution along an independent variable. While a linear model provides a compact support at a central mean, a distribution of a predicted value on both ends of a simple linear regression widens as an independent variable moves further away from its central mean. A simple linear regression gives a good fit on average for an expected predicted value. This present research study is looking at feasible maximum output along an independent variable called an efficient frontier. At the same time, a simple linear regression gives a more accurate prediction near a central mean. This research study focuses on a particular attention on both far ends of an efficient frontier curve. A non-linear model is presumed to perform better than a linear model. Upon overcoming the challenge of producing a practical non-linear model, a new S-curve efficient frontier for evaluation model is proposed in this study for better and practical estimation on an optimal output. An efficient frontier denotes an optimal curve in a nonlinear model. This new S-curve efficient frontier reflects a non-linear model from a single independent variable to a prediction valuation that has a positive first derivative throughout its progression. This non-linear S-curve model is proposed as an ideal projection in a scientific valuation model. Two types of quantitative secondary data have been collected, namely second-hand car prices and market equity share prices, to test on this model generation and validation. An S-curve efficient frontier model gives a better forecast along dynamic progress on an efficient frontier projection from a simple linear regression. Hence, this novel non-linear S-curve efficient frontier predictive for evaluation model may serve as an ideal projection to many real scenarios within positive derivative progression. More importantly, this S-curve model prescribes an ideal view on a statistical motion for future endeavours. An S-curve efficient frontier for evaluation model will provide and add a dynamic mental picture in addition to a normal distribution

Introducing S-index into factoring RSA modulus via Lucas sequences

At any instance in the factoring algorithm, the accumulative result stands independently. In effect, there is no clear direction to manoeuvre whether to go left or right. General Lucas sequences are practically useful in cryptography. In the past quarter century, factoring large RSA modulo into its primes is one of the most important and most challenging problems in computational number theory. A factoring technique on RSA modulo is mainly hindered by the strong prime properties. The success of factoring few large RSA modulo within the last few decades has been due to computing prowess overcoming one strong prime of RSA modulo. In this paper, some useful properties of Lucas sequences shall be explored in factoring RSA modulo. This paper will also introduces the S-index formation in solving quadratic equation modulo N. The S-index pattern is very useful in designing an algorithm to factor RSA modulo. The S-index will add another comparative tool to better manoeuvre in a factoring process. On one hand, it shall remain a theoretical challenge to overcome the strong prime properties. On the other hand, it shall remain a computational challenge to achieve a running time within polynomial time to factor RSA modulo. This paper will propose an avenue to do both using general Lucas sequences

Used Car Price Estimation: Moving From Linear Regression Towards A New S-Curve Model

A simple linear regression is commonly used as a practical predictive model on a used car price. It is a useful model which carry smaller prediction errors around its central mean. Practically, real data will hardly produce a linear relationship. A non-linear model has been observed to better forecast any price appreciation and manage prediction errors in real-life phenomena. In this paper, an S-curve model shall be proposed as an alternative non-linear model in estimating the price of used cars. A dynamic S-shaped Membership Function (SMF) is used as a basis to build an S-curve pricing model in this research study. Real used car price data has been collected from a popular website. Comparisons against linear regression and cubic regression are made. An S-curve model has produced smaller error than linear regression while its residual is closer to a cubic regression. Overall, an S-curve model is anticipated to provide a better and more practical estimate on used car prices in Malaysia

Coastal Landscapes of Peninsular Malaysia: The Changes and Implications for Their Resilience and Ecosystem Services

Coastal landscapes are not only supporting the most productive and ecologically valuable ecosystem but are also fast changing, caused by both anthropogenic and natural processes. Changes in the form of diminishing vegetation cover, water body and increasing urbanization in Terengganu, East Coast of Peninsular Malaysia, for the years of 2000 and 2017 were assessed using Moderate Resolution Imaging Spectroradiometer satellite (MODIS) product. Images were processed based on Erdas Imagine software and then projected to World Geodetic System (WGS 84) coordinates based on ArcGIS 10.0. Significant reduction is detected in vegetation cover, from 46.5% in the year 2000 to 26.6% in 2017, coinciding with an increase in urban areas (from 3.3 to 33.6%). Changes due to urbanization raise concern over the loss of coastal landscape and may impact its resilience, so it may no longer be able to provide key ecosystem services. This understudied ecosystem deserves to be conserved for its ecosystem services. The paper argues that looking at the data presented, the resilience or the capacity of the Terengganu coastal landscape in maintaining its ecosystem services in the near future might have been compromised. Recommendations on how these valuable landscapes could be best conserved for social and ecological sustainability are put forward

STUDENTS’ PERCEPTIONS AND ATTITUDES TOWARDS STUDENT-CENTRED LEARNING: A STUDY OF MANUFACTURING ENGINEERING TECHNOLOGY STUDENTS IN UNIVERSITI TEKNIKAL MALAYSIA MELAKA

Student-Centred Learning (SCL) is a method of teaching that puts student at the center of the learning process. The implementation of SCL requires a shift in focus from the lecturer to the student. This study investigated both perceptions and attitudes of 167 students specializing in the area of Product Design and Process Manufacturing Engineering Technology at the Faculty of Engineering Technology (FTK) in Universiti Teknikal Malaysia Melaka (UTeM). Students were given a set of questionnaires during one of the classes. From the findings, conclusion has been drawn regarding the SCL approach to support teaching and learning. The result shows that the students’ self-directed learning readiness and a positive perception toward SCL should be encouraged. At the same time, the role of lecturers is very important to ensure the successful of the SCL approach in teaching and learning is taking place and thus, will lead to a change in the perceptions and attitudes of the students towards SCL. Keywords: student-centred learning, perception, attitude, engineering technology

Lecturers’ Method of Teaching Mathematics: Engineering Technology Students’ Perceptions in UTeM

Teaching Mathematics courses at the tertiary level institutions nowadays can be quite challenging especially when the delivery method for the subject matter is known to always be very traditional using the chalk and board. This study examined the Engineering Technology (ET) students’ perceptions of their lecturers’ teaching method for Mathematics courses at the Faculty of Engineering Technology (FTK), Universiti Teknikal Malaysia Melaka, Malaysia (UTeM). A mini survey with quantitative research methods was utilized. 264 second year ET students with different fields of studies at FTK, UTeM, were asked to complete a set of questionnaires administered during the final week of the semester. A questionnaire consists of questions regarding how students perceive their lecturers’ teaching method during the class sessions. From the findings, conclusion has been drawn regarding the students’ perceptions of their Mathematics lecturers in promoting different methods in teaching Mathematics. The result shows that most of the mathematics lecturers incorporated both active and passive teaching methods in teaching of the subject matter. Keywords: perceptions, student-centred learning, teacher-centred learning, engineering technolog

The development of car seat alert system through telegram application

This paper discusses the development of a car seat alert system through telegram application to design and develop a car seat alert system for babies that have been left in vehicles and get heatstroke deaths. This type of accident is called vehicular heatstroke and it is very dangerous to a baby because their body overheats 3-5 times faster than an adult body. Plus, the inside of a vehicle is heating up very quickly and it very concerns parents to bring their child to travel using car. Nowadays, heatstroke deaths of children in vehicles are quite encouraging and every year the number of cases is increasing. In an overwhelming majority of child vehicular heatstroke deaths, it was loving, responsible parents that unknowingly left the child. This project was created to inform and alert the parents out there when they might forget their child is left under any circumstances. To make sure this project system is more practical, NodeMCU is used as a microcontroller to control all the input and output devices in this system. As to alert parents when this carelessness is happening the LED and Buzzer are provided in this system. Apart from that, LCD is used to display the presence of the child at the seat and temperature value inside. GPS module is used to give the location to inform the driver that the child was been left in the car. As to ensure the goals stated will be achieved, significant research has been made thoroughly that will act as references throughout these studies for this projec

Magnetic Levitation Training Kit For Teaching Basic Electrical Control System Courses

In this paper, we propose a training kit for developing a system to assist basic electrical control courses to the undergraduate students of Electrical Engineering or Electrical Engineering Technology. We present magnetic levitation hardware demonstrating a load hanging in the air with the help of electromagnetic coil. The students are provided with unassembled training kit project where they will use it to achieve several learning outcome. Technical data of the system is given along with a basic instruction manual as benchmark for the training kit. The magnetic levitation kits provide an open-ended design problem such as designing a sensor, load, closed loop feedback system and a lot more. The training kit is alter made to provide exciting and excellent teaching tools for controls system subject unlike the conventional trainer module

FTK Students’ Performance in Mathematics: Comparison between SPM and First Year Exam

In the last 20 years, mathematics teaching and learning encounters quite a big problem, especially at the tertiary level. The main concern always surrounds the students’ achievement in the subject matter. Students’ performance in mathematics at first year is reflected by the students’ mathematical background prior to the admittance into the university. The study examined 165 first year students in the Faculty of Engineering Technology (FTK) who took the Mathematics Competency test upon entering the university at the beginning of their first semester. A test consisted of 40 fundamental mathematical questions which students have learned them before. From the result, 84% of these students failed this test. However, looking at their Sijil Pelajaran Malaysia (SPM) mathematics result during Form Five (12th grade) in school, the majority did quite well in that exam. These students also took a first year mathematics course which is Technical Mathematics at the same semester. At the end of the semester, the result of their Technical Mathematics course seemed to be quite good. The performance of these three mathematics results was being compared and studied