IIR and FIR digital filter : a case study

This paper is about to analyze and identify the digital audio signal. Two audio signals are provided which is the original audio and the added noise audio signal. The purpose of the study is to identify and eliminate the unknown noise signals by using Finite Impulse Response and Infinite Impulse Response digital filters. The detail steps to design the both have been stated in this paper. All the results is simulated and showed in MATLAB to show the comparison between the two. Keywords- FIR, IIR, MATLAB

Review on the barcode technology of android application development for GST products database system

Starting from 1 April 2015, the Goods and Service Tax will be introduced by the Malaysia Government to be implemented in the country. Since there is no such application provided in the market that can help the struggling citizen to recognize the GST goods, hence; this study will compare the existing Goods and Service Tax system and expose the user an idea to know the items with GST. Selected review papers had been chosen as the man reference to review this specific issue that related to Goods and Service Tax. Advantages and disadvantages of the review paper will be tabulated as to compare and to be used in order to produce a user friendly Android application in the future. In conclusion, the grayscale technique was the suitable and convenient to be used in the image processing. Since, the accuracy of the technique is quite high and from all proposed techniques it is the easy one. The emphasis of the 1D barcodes is about the identification, since the scanning of the barcodes (from the android program) going to be connected to the database; this technique will be make the application to be simple and suitable for all type of user. Keywords: 1D Barcode, Android, Barcode, Database, Goods and Service Tax

Snapticon: Developing effective listening skills for group oral discussion

In many higher education institutions (HEIs) around the world, one of the popular English oral assessments for ESL learners is group discussion. In group discussions, it is vital that they have the ability to manage topics in a discussion by knowing how to initiate a topic, expand on the topic, seamlessly shift from one topic to another as well as close the topic appropriately. Students are therefore required to utilise their verbal and non-verbal skills to actively interact with all group members. Listening and speaking skills are equally important for effective communication including participating in group oral discussion. In order to help ESL learners to be active participants in group discussions, a card game called Snapticon was created. Open-ended questionnaires were distributed to 25 respondents in the study and observations were made while the game was being played. It was found from the findings that the respondents were positive as they regarded the game as interesting and fun. Therefore, it can be concluded that Snapticon has the potential to be used as a learning material to help develop ESL learners’ effective listening skills in group oral discussions. Moreover, the use of Snapticon enables learners to be interactionally competent when participating in group oral discussions

Topic Management in Collaborative Oral Group Discussion of English as a Second Language Learners

This study investigates the management of topic in peer collaborative interaction in assessment context. The ability to manage discussion topic in a specific communicative event is fundamental to interactional competence. Topic initiation, topic expansion, moving from one topic to another as well as introducing new topics to peers during collaborative talk requires not only participants’ linguistic abilities but also active participation of all members. This study analysed oral group interactions of English as a Second Language Learners in an institution of higher learning in Malaysia. Group oral interactions of five groups from thirty students were transcribed and analysed using qualitative analysis software, Atlas.Ti. for thematic analysis. The topics used for the oral group discussion were part of compulsory assessments that the students had to undergo in order to complete the course. The findings show that the students were able to initiate the discussion, expand the topic at hand, provided agreement and disagreement where necessary in their effort to ensure the successful completion of the assigned task. The findings of the study have direct implications for language teaching and learning development especially where oral group interactional competence is concerned

Biotechnological potential of Kuantan mangrove actinomycete, Micromonospora K3-13

Introduction Mangrove is a complex and unique ecosystem which experiences periodical tidal flooding inundated with low, moderate and high saline water. The muddy soil is rich in organic matter derived from efficient nutrient cycling system and decomposition of mangrove leaves. Therefore, the adaptation of mangrove microorganisms towards these environmental factors could promote the production of interesting bioactive compounds and enzymes. Methodologies This study aimed to unravel the identity and biotechnological potential of a Kuantan mangrove actinomycete, strain K3-13, through morphology observation, molecular identification, antimicrobial test and xylan degradation test. Results The study revealed that this orange-coloured mycelium-forming isolate produced spores after long incubation period which showed characteristics that resembled Micromonaspora colonies. The phylogenetic analysis of the 16S rRNA gene sequence of strain K3-13 indicated that the highest similarity was to Micromonospora carbonacea DSM43168 (99%). Besides, K3-13 produced blue diffusible pigment upon cultivation on three different starch-agar medium. Cross streak assay conducted to detect antimicrobial activities indicated that K1-13 has strong antibacterial activities against Bacillus subtilis and Staphylococcus aureus. K3-13 also showed positive xylanase activities by exhibiting decolourization zone in the agar-based assay using azo-xylan as substrate. Conclusion Nevertheless, it can be concluded that Micromonospora K3-13 could be explored for its potential biotechnological application such as natural dye, antibacterial drugs and xylan biodegraders

New route for preparing palmitic acid imidazole from free fatty acid using imidazole

In this study, imidazole was used for the first time in esterification of free fatty acid (FFA) from acidic oil and for palmitic acid imidazole production. The FFA content in jatropha oil mixed with crude palm oil (CPO) was significantly reduced from 10.57% to 1.73% under the following optimum conditions (25% imidazole dosage, 30 mins of reaction time, reaction temperature at 60 °C and methanol to oil molar ratio of 20:1). This research opens up new possibilities for utilizing imidazole as a catalyst in various esterification processes, offering a promising and eco-friendly pathway for industrial applications