Differential transformation method for solving sixth-order boundary value problems of ordinary differential equations

In this study, sixth-order boundary value problems for linear and nonlinear differential equations have been solved by using Differential Transformation Method (DTM). The numerical solutions are given in several examples. For each example, the solution given by DTM is compared with the exact solution. Absolute relative error (ARE) for each iteration can be computed. Therefore, the maximum absolute relative error (MARE) of the DTM can be obtained. To show that the solution given by the DTM has higher level of accuracy, the absolute relative error of the DTM has been compared with the other methods such as Adomian decomposition method with Green’s function, modified decomposition method (MDM), homotopy perturbation method (HPM), Variational Iteration Method (VIM) and Quintic B-Spline Collocation Method. Comparison graphs are given at the end of this paper. The obtained result shows that the proposed method is able to provide better approximation in term of accuracy

Difficulties experience by Science Foundation students on basic Mendelian Genetics topic: A preliminary study

This paper aims to report and identify the difficulties experienced by Science Foundation students in understanding basic Mendelian Genetics based on their ability to solve three types of basic Mendelian Genetics problems. The problems given are; a monohybrid cross and two dihybrid cross cases. Result shown that 52.6% students were able to solve all the given problems while another 47.4 % had difficulties to solve at least one of the given problems. Among the students that had difficulties to solve the given problems, 4.4% students had difficulties to solve Type 1 problem, 13.3% students had difficulties to solve Type 2 problem, 15.6% students had difficulties to solve Type 3 problem, 8.9% students that had difficulties to solve both Type 1 and 3 problems, 40% students had difficulties to solve both dihybrid cross Type 2 and 3 problems, and 17.8% students were unable to solve all the given problems. E(X) or number of questions that the Science Foundation students had difficulties to solve is 0.874. The standard deviation for number of questions that the Science Foundation students had difficulties to solve is 1.842. In solving basic Mendelian Genetics problems, we expected students were able to solve the problems given and also can clarify the techniques used in term of genetic context. The initial finding reported in this study may be used to have a better understanding on students' ability and problem solving skills in learning genetics

Study of enhancing the modified Baptista type cryptosystem via the mutation technique idea

A chaos-based cryptography system that uses the ergodicity property of the simple low-dimensional and chaotic logistic equation was proposed by M.S Baptista. In the cryptography system, each “letter” has a particular site in the interval (0, 1). In 2012, M.R.K. et al. proposed a modified Baptista Cryptosystem using Chaotic Fractal Functions to overcome the weaknesses of the cryptosystems. This study aims to enhance the modified Baptista’s chaotic that has been proposed previously. The mutation technique was employed in this study. This study shows that the mutation technique theory was successfully implemented in the modified Baptista cryptosystem

RHA_SSA: partial cement replacement in green concrete / Nuraini Tutur ... [et al.]

Sludge is an unavoidable product of wastewater treatment and creates problems of disposal. For highly urbanized cities, sludge disposal by land filling might not be appropriate due to limitation of land. Using RHA_SSA for this study will encourage Malaysia to build more low carbon and sustainable building construction. Finding more alternative materials in enrich concrete structure and at the same time promoting the environmental sustainability is a must for Malaysia as developing country with increasing number of infrastructures built throughout the year. This research had been studied the effect of partial replacement of cement by Sewage Sludge Ash (SSA) and Rice Husk Ash (RHA). The effects on the nature of concrete exhibited mechanical properties of concrete such as compressive strength, water absorption, from a combination of sewage sludge ash and rice husk ash at different proportions. There were 108 samples had been prepared at different percentages of replacement of cement by using sewage sludge ash and rice husk ash. RHA_SSA are used as partial replacement of cement for 10%, 20%, 30%, 40% and 50% in the concrete. The samples had been tested with compressive test. From the results, initially, there was an increment compressive strength of concrete at 10% amount replacement SSA and RHA, but the compressive strength declined when the amount replacement SSA and RHA are developing more than 10%. In addition, the concrete also showed increasing of compressive strength within the additional curing period, which was 7 days, 14 days and 28 days. Therefore, there is potential to reuse this waste material as part of construction materials and for future researches in minimization of waste

Study of Rinago weaving at kampung Inukiran with new equipment design

Rattan weaving products are one of the livelihoods for some villagers in Sabah. A study of Rinago weaving was conducted in Inukiran village, Kudat, Sabah. The group that practices rattan weaving is known as Monungkus. The product produced is known as Rinago weaving. The study was conducted to identify and understand the entrepreneurs and rattan products in Sabah. This study has successfully proposed two more conventional JIG (tools that can move side to side) aids, Pais and Peraut to accelerate the production of rattan weaving products

Differential Transformation Method for Solving Sixth-Order Boundary Value Problems of Ordinary Differential Equations

In this study, sixth-order boundary value problems for linear and nonlinear differential equations have been solved by using Differential Transformation Method (DTM). The numerical solutions are given in several examples. For each example, the solution given by DTM is compared with the exact solution. Absolute relative error (ARE) for each iteration can be computed. Therefore, the maximum absolute relative error (MARE) of the DTM can be obtained. To show that the solution given by the DTM has higher level of accuracy, the absolute relative error of the DTM has been compared with the other methods such as Adomian decomposition method with Green’s function, modified decomposition method (MDM), homotopy perturbation method (HPM), Variational Iteration Method (VIM) and Quintic B-Spline Collocation Method. Comparison graphs are given at the end of this paper. The obtained result shows that the proposed method is able to provide better approximation in term of accuracy

An evaluation of students’ performance in poster presentations using fuzzy evaluation method / Khairu Azlan Abd Aziz ... [et al.]

Poster presentation encompasses many elements such as the organization of poster, the content related to the title proposed, the appearance and the written word. Usually, the poster presentation is used as a platform for student to present their final year project or any other competitions. Students will be evaluated based on the criteria that meets the requirements proposed by the panels or judges. However, their performance in poster presentations does not provide the suitable techniques to estimate the actual value since it involves the elements of fuzziness. In this study, the fuzzy evaluation technique will be applied to measure the performance of the poster presentation. The motivation behind poster presentation is to determine the performance of students using fuzzy evaluation method. The objective of this study is to compare the results between using conventional method and fuzzy evaluation method. The method consists of normalizing the marks, developing the graph of fuzzy membership function, calculating the degree of satisfaction, and finalizing the actual marks. We believed that the result from this study could be able to measure the better output with the consideration of linguistic terms includes excellent, good, moderate, satisfactory, and so on. This method also can be an alternative way to evaluate the performance of the poster presentation

An evaluation of students' performance in poster presentations using fuzzy evaluation method / Khairu Azlan Abd Aziz ... [et al.]

Poster presentation encompasses many elements such as the organization of poster, the content related to the title proposed, the appearance and the written word. Usually, the poster presentation is used as a platform for student to present their final year project or any other competitions. Students will be evaluated based on the criteria that meets the requirements proposed by the panels or judges. However, their performance in poster presentations does not provide the suitable techniques to estimate the actual value since it involves the elements of fuzziness. In this study, the fuzzy evaluation technique will be applied to measure the performance of the poster presentation. The motivation behind poster presentation is to determine the performance of students using fuzzy evaluation method. The objective of this study is to compare the results between using conventional method and fuzzy evaluation method. The method consists of normalizing the marks, developing the graph of fuzzy membership function, calculating the degree of satisfaction, and finalizing the actual marks. We believed that the result from this study could be able to measure the better output with the consideration of linguistic terms includes excellent, good, moderate, satisfactory, and so on. This method also can be an alternative way to evaluate the performance of the poster presentation