ANAS Volume 12, Number 4: April, 2018


The influence of different reaction parameters on plant-mediated synthesis of silver nanoparticles from Citrus grandis.

Nur Syazana Jalani, Wong Michell, Wong Ee Lin, Sharifah Zati-Hanani, Uda Hasim and Rozaini Abdullah

Abstract A plant-mediated approach using Citrus grandis or pomelo peel extract was studied for the synthesis of silver nanoparticles (AgNPs). The effects of parameters such as pH, incubation temperature and reaction time on the synthesis of AgNPs were also studied. It was found that the formation of AgNPs enhanced with time at higher temperature and alkaline pH. The formation of synthesized AgNPs were confirmed by surface plasmon resonance (SPR) as determined by UV-Vis spectra around 400.5 to 414.0nm. Fourier transform infrared spectra (FTIR) of synthesized AgNPs showed the carboxyl, hydroxyl and amide groups on the surface of pomelo peel extract responsible for the reduction of silver ions. Size and shape of nanoparticles was analyzed by Field emission scanning microscopy-Energy Dispersive X-Ray (FESEM-EDX) shows spherical shape of nanoparticles with size ranging from 30 to 60 nm.

[ FULL TEXT PDF 1-5 ] DOI: 10.22587/anas.2018.12.4.1


Dynamic Simulation for Distillation Column

Nasser Mohamed Ramli and Haslinda Zabiri

Abstract In this paper, a model of distillation is developed for simulation purposes. The model can be used to study the behavior of the column. The model used in this research is based on the distillation column in the Crude Distillation Unit in the oil refinery industry. The main tool used for modeling and simulation of the debutanizer is MATLAB. The MATLAB toolbox ode45 is applied in to obtain the solutions of ordinary differential equations. Simulation study was performed on the model in order to understand the principle and behavior of the column. Tuning was then done to optimize the performance of the column

[ FULL TEXT PDF 6-10 ] DOI: 10.22587/anas.2018.12.4.2


The Direction of Physical and Health Education in 21st century in Malaysia

Shahrulfadly Rustam and Mohar Kassim

Abstract Twenty-first century formal and informal learning environments found in schools and in the community must be crafted to inform, inspire, and transform individuals to enhance their lives, work, and play. The world is increasingly interconnected and learning environment that will require a more global perspective, in terms of culture and context related. Technology will provide a way to spread information from one part of the world to another world. The impact of globalization in education affect the learning environment of the twenty-first century with the communication of ideas, concepts and ideas in society. This article explains the problems that occurred in the Physical and Health Education curriculum (PHE) on the twenty-first century and peeling the importance and the challenges faced in this century. It also discusses the extent to which the direction of the Physical and Health Education can empathize with the National Education Philosophy in other words to elevate it. But to uphold the desire, various obstacles and problems in the Physical and Health Education curriculum should be acted upon. Among them is the attitude of school administrators towards Physical and Health Education and the attitude of the students themselves involved in Physical and Health Education activity in schools. It is hoped this article can give input to the reader or researcher in searching for solutions in Physical and Health Education curriculum so that it is parallel to the goal of the National Education Philosophy.

[ FULL TEXT PDF 11-15 ] DOI: 10.22587/anas.2018.12.4.3


Integration Between ERP Software and Business Intelligence in Odoo ERP: Case Study A Distribution Company

Yulia Kendengis and Leo Willyanto Santoso

Abstract Odoo is an open-source ERP software. Odoo has advantage in price because it’s free. And from the functional side, Odoo has been equipped with more than 4500 modules, one of them is business intelligence (BI). BI is a solution and technique that helps company to understand about the business situation to make effective business decisions and meet their objectives. A study about the integration between Enterprise Resource Planning and BI in Odoo ERP will be explained in this paper. In the case study, we used sales data from a distribution company.

[ FULL TEXT PDF 16-21 ] DOI: 10.22587/anas.2018.12.4.4


Implementation of Chemical Reaction Based on Augmented Reality

Alexander Setiawan, Silvia Rostianingsih and Timotius Reinaldo Widodo

Abstract One of the interesting technologies today that can be developed on a smart phone is Augmented Reality (AR). AR is capable of supplying information that is easy to understand by the users. The benefit above can be used to make a learning application to support a learning process. One lesson that can make use of this technology is chemistry, specifically about chemical reactions. On this research, a chemical reaction learning application that utilizes library vuforia and Unity by using C# programming language will be made. Along with the 3D object creation is made by an application called Blender. The test result shows that applications that are made by using library vuforia and Unity can run well. High school students are able to picture the chemical reactions by using this application.

[ FULL TEXT PDF 22-26 ] DOI: 10.22587/anas.2018.12.4.5


Academic Decision Support System for Top Management

Leo Willyanto Santoso and Yulia

Abstract The ability to analyze and act on data is increasingly important to businesses, including in the education industry. Academic records of student of XYZ University which have been stored so far have not been used to generate some insights. XYZ University’s top-level management needs a tools to produce information from the records. The generated information is expected to support the decision-making process of top-level management. Effective business intelligence (BI) tools assist managers with decision making. BI tools provide decision-makers with the information that they need to make insightful decisions. Before starting the application development, analysis and design of the student academic records and the needs of Top-level management are done. The design stage produces a number of modeling that will be used to create the application. The final process of the development is an Academic Decision Support System application for XYZ University.

[ FULL TEXT PDF 27-32 ] DOI: 10.22587/anas.2018.12.4.6


Investigating Learners’ Perception of Uncertainty Level and satisfaction in learning experience in an Authentic Problem-based Learning Classroom

Dr. Loh Kah Heng

Abstract Learners of Problem-based learning (PBL) are expected to gain learning experience from “real world” problems through uncertainty resolution alongside with the problem solving process. The uncertainty incorporated in the authentic PBL problem acts as a source of intrinsic motivation and a stimulus to learning which appears as the natural provocations for real learning experience. PBL learners must seek information to resolve uncertainty in various stages of the problem solving process. This paper aims to investigate the perception of PBL learners with regards to their uncertainty level and satisfaction in learning experience while following an authentic PBL approach in learning physics. 78 students (FALL 2016 Semester) from American Degree Transfer Program at Taylor‟s University in Malaysia participated in this study. These PBL learners were randomly assigned into two equal groups. The independent variables were groups of students with and without pretesting while dependent variables were PBL learners‟ perception of uncertainty level and satisfaction in learning experience. Uncertainty construct was developed and designed to measure an individual‟s real or anticipated uncertainty level with regards to the cognitive, affective and physical dimension in a 30-item selfreporting,
numerically measurable questionnaire. Satisfaction in learning experience will measure learners‟ satisfaction in learning experience with regards to the benefits through construction and made sense of the information gathered and knowledge acquisition, and application of the acquired knowledge to perform the learning task in a 10-item self-reporting, numerically measurable questionnaire. The pre-test and post-test questionnaires consist of 40 items with high reliability, that is Cronbach‟s Alpha of 0.852 (pre-test instrument) and 0.882 (posttest instrument) for the survey questionnaire. Results from the analysis of repeated T-tests and independent sample T-Tests showed that PBL learners‟ uncertainty level was reduced while satisfaction in learning experience was increased after attending the authentic PBL activities. Besides, the Pearson‟s correlation coefficient between the decrease in uncertainty level and increase in rating of satisfaction in learning experience were statistically correlated.

[ FULL TEXT PDF 33-38 ] DOI: 10.22587/anas.2018.12.4.7


The Factors Influences of pH or Acidity Level in The Urban Area

Wiwit Suprihatiningsih, Titia Izzati, Kis Yoga Utomo, Sandi Novandi, Nurhakim, Novera Elisa Triana

Abstract This research aims to study the acidity or the water’s pH in Bekasi, Bogor, Depok and East Jakarta. The purpose is to determine what kind of factors influence the pH intensity in the above mentioned cities. This research methods are performed by taking water samples in residentials, or industrial areas to be investigated with the pH measuring instruments. This research will analyze any factors that cause changes in water condition of these cities. pH values at residential areas: Bekasi 7.4, Bogor 7.5, Depok 7.7 and East Jakarta 7.8 and and at industrial areas, of the same cities show a remarquable difference such as: Bekasi 8.7, Bogor 8.2, Depok 8.3 and East Jakarta 8.2. These water pH differences are influenced by industries factor, household waste, or the traffic intensity in any of these cities.

[ FULL TEXT PDF 39-43 ] DOI: 10.22587/anas.2018.12.4.8


© 2007, AENSI Publications