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31,456 Article Results

Breakdown film script using parsing algorithm

10.12928/telkomnika.v18i4.14849
Agung; UIN Sunan Gunung Djati Bandung Wahana , Diena Rauda; UIN Sunan Gunung Djati Bandung Ramdania , Dhanis Al; UIN Sunan Gunung Djati Bandung Ghifari , Ichsan; UIN Sunan Gunung Djati Bandung Taufik , Faiz M.; UIN Sunan Gunung Djati Bandung Kaffah , Yana Aditia; UIN Sunan Gunung Djati Bandung Gerhana
Breakdown script is a breakdown of the scenario into parts that describe each detail of the scene for shooting. The scenario is broken down into more detailed parts using the parsing algorithm. The film script used is a script in Bahasa Indonesia. The process starts from the film script file/scenario in FBX format uploaded to the website then is solved using a parsing algorithm into film elements such as cast members, extras, props, costumes, makeup, vehicles, stunts, special effects, music and sound. The results of this breakdown into sheets according to film elements. The purpose of this research is to produce breakdown sheets from film scripts according to film elements. The parsing algorithm test results showed the correct results of 12 scenes out of 19 scenes.
Volume: 18
Issue: 4
Page: 1976-1982
Publish at: 2020-08-01

Comparative performance of optical amplifiers: Raman and EDFA

10.12928/telkomnika.v18i4.15706
Khalis A.; Northern Technical University Mohammed , Basma M. K.; Northern Technical University Younis
The in-line optical signal amplification is often used in optical communication systems to accomplish longer transmission distances and larger capacity. In this proposed paper, the operation of two types of optical amplifiers for 16×10 Gbps wavelength division multiplexing system had been examined by changing transmission distance from 10 to 200 km with a dispersion equals to 16.75 ps/nm/km. The analysis and design of such systems ordinarily includes many signal channels, nonlinear devices, several topologies with many noise sources, is extremely complex and effort-exhaustive. Therefore, theoretical studies with simulation CAD software of systems are become necessity to predict and optimize system performance. The comparison between EDFA and Raman has already explored by many researchers in varying ways in this work and to achieve obove objectives, the OptiSystem software was used to design the proposed fiber optic communications system and to simulate results. Performance for the present system was evaluated for parameters like bit error rate (BER), quality factor (QF), total gain with eye opening factor. It was saw that EDFA provides better results, in the maximal transmission distance 64% better than Raman amplifier, 57.5% for gain and 26.7% for maximum quality factor. As a future study a hybrid amplifier can produce better quality of amplification.
Volume: 18
Issue: 4
Page: 1701-1707
Publish at: 2020-08-01

Role of gamification in classroom teaching: Pre-service teachers’ view

10.11591/ijere.v9i3.20622
Rita Wong Mee Mee , Tengku Shahrom Tengku Shahdan , Md Rosli Ismail , Khatipah Abd Ghani , Lim Seong Pek , Wong Yee Von , Adelaide Woo , Yugeshineey Subba Rao
Planning a creative learning environment is not an easy task. Teachers prefer to teach traditionally in chalk-and-talk approach during language teaching. However, this does not fit learners of the 21st Century as they prefer game-like activities instead of pen-and-paper lessons. Hence, the introduction of gamification in classroom would result in immediate enthusiasm and curiosity, which leads to the learners’ willingness to learn. Gamification prepares learners to be active and take responsibility upon their own learning. Lessons filled with fun games are believed to be more effective in producing a positive outcome as learners are motivated to play more although they do not realise the fact that they are learning subconsciously. This study aimed to explore views of 33 pre-service teachers in using gamification in language teaching during their 16-week internship at local primary schools around Selangor, Malaysia. A quantitative survey research method was used by administering a set of questionnaires at the end of their internship. The data collected was then analysed and presented in the form of tables. The results showed that integrating gamification into language learning improved learners’ creative, critical and problem-solving skills. Thus, interesting and engaging activities spark learners’ interest in language learning subconsciously.
Volume: 9
Issue: 3
Page: 684-690
Publish at: 2020-08-01

Rice seed image classification based on HOG descriptor with missing values imputation

10.12928/telkomnika.v18i4.14069
Huy; Ho Chi Minh City Open University Nguyen-Quoc , Vinh; Ho Chi Minh City Open University Truong Hoang
Rice is a primary source of food consumed by almost half of world population. Rice quality mainly depends on the purity of the rice seed. In order to ensure the purity of rice variety, the recognition process is an essential stage. In this paper, we firstly propose to use histogram of oriented gradient (HOG) descriptor to characterize rice seed images. Since the size of image is totally random and the features extracted by HOG can not be used directly by classifier due to the different dimensions. We apply several imputation methods to fill the missing data for HOG descriptor. The experiment is applied on the VNRICE benchmark dataset to evaluate the proposed approach.
Volume: 18
Issue: 4
Page: 1897-1903
Publish at: 2020-08-01

A smart gas leakage monitoring system for use in hospitals

10.11591/ijeecs.v19.i2.pp1048-1054
Nadia Mahmood Hussien , Yasmin Makki Mohialden , Nada Thanoon Ahmed , Mostafa Abdulghafoor Mohammed , Tole Sutikno
A gas leaks lead to personal and financial damage. Much effort has been dedicated to preventing such leaks and developing reliable techniques for leak detection and leakage localization using sensors. These sensors usually sound an alarm after detecting a dangerous gas in its vicinity. This paper describes a system for detecting a gas leakage from cylinders which notifies the user via the GSM network. The system consists of an LPG gas leakage detector which sends a warning signal to Arduino Uno Microcontroller. The system uses the GSM network to send notifications, a liquid crystal display (LCD) monitor to display the warning message and buzzer to sound the alert.
Volume: 19
Issue: 2
Page: 1048-1054
Publish at: 2020-08-01

Detection of uveal melanoma using fuzzy and neural networks classifiers

10.12928/telkomnika.v18i4.14228
Daniel F.; Universidad Distrital Francisco José de Caldas Santos , Helbert Eduardo; Universidad Distrital Francisco José de Caldas Espitia
The use of image processing is increasingly utilized for disease detection. In this article, an algorithm is proposed to detect uveal melanoma (UM) which is a type of intraocular cancer. The proposed method integrates algorithms related to iris segmentation and proposes a novel algorithm for the detection of UM from the approach of fuzzy logic and neural networks. The study case results show 76% correct classification in the fuzzy logic system and 96.04% for the artificial neural networks.
Volume: 18
Issue: 4
Page: 2213-2223
Publish at: 2020-08-01

Simulation and optimization of a tuneable rectangular microstrip patch antenna based on hybrid metal-graphene and FSS superstrate for fifth-generation applications

10.12928/telkomnika.v18i4.14988
Nidal; Al-Ahliyya Amman University Qasem , Hamzah M.; Al-Esraa University College Marhoon
In this paper, a tuneable rectangular microstrip patch antenna (MPA) is simulated and optimized to operate in four frequency bands of the next generation of wireless communication systems. The proposed design incorporates a copper radiating patch with four implanted graphene strips for tuning purposes. The reconfigurable surface impedance of graphene can easily be altered by applying a DC voltage bias directly to the graphene strips, allowing the operating frequency of the antenna to be tuned as desired. The capability of the applied voltage to tune the operating frequency band of the proposed antenna is studied via computer simulation technology (CST) microwave studio (MWS). Frequency selective surfaces (FSSs) are introduced in order to improve the radiation parameters of the antenna. The operating frequency band of the tuneable rectangular MPA increases directly as the applied DC voltage bias is increased. Based on the simulation results, a tuneable rectangular MPA placed between two FSSs is proposed for fifth-generation applications.
Volume: 18
Issue: 4
Page: 1719-1730
Publish at: 2020-08-01

Condition of phase angle for a new VDGA-based multiphase variable phase shift oscillator from 0o to 90o

10.11591/ijece.v10i4.pp3801-3810
Kasim K. Abdalla
A novel interesting type of variable phase angle voltage mode oscillator using modern building block has been presented in this paper. The new proposed oscillator configuration which uses four voltage differencing gain amplifier (VDGA) and two grounded capacitors can generate two sinusoidal signals that change out of phase by 0 to 90 degree. It has four floating and explicit voltage mode outputs where every two outputs have the same phase. The circuit is characterized by (i) the condition of phase angle of the oscillation (PO) (this concept is introduced for the first time in this paper) can be tuned electronically (ii) the gain of the floating outputs can be controlled independently (iii) it provides electronic control of condition of oscillation (CO) and independent control of frequency of oscillation (FO). The Total Harmonic Distortion (THD) of the output waveforms was obtained and the results were reasonability values (less than 4.5%). The non-ideal analysis and simulation results are investigated and confirmed the theoretical analysis based upon VDGAs implementable in 0.35μm CMOS technology. Simulation results include time response and frequency response outputs generated by using the PSPICE program.
Volume: 10
Issue: 4
Page: 3801-3810
Publish at: 2020-08-01

The usage of thermoelectric generator as a renewable energy source

10.12928/telkomnika.v18i4.13072
Cekmas; University of Sriwijaya Cekdin , Zainuddin; Sriwijaya University Nawawi , Muhammad; Sriwijaya University Faizal
Currently thermoelectric generators (TEG) are widely used in biomedical, military and space satellite power applications. TEG of high power plants are mostly used in automobile and industrial engines. This paper discusses TEG as a renewable energy source. Here the TEG in the application is used in the thermoelectric generator power plant. The working principle of this thermoelectric generator is on the heat side of the TEG peltier which is coated in metal in the form of aluminum, which is heated by a heater. And the cold side of the TEG Peltier is placed on the heat sink (as a heat dissipation metal). Heatsinks are submerged in water which are submerged about half or more. If the temperature of the metal being heated and the temperature of heat dissipation metal have a certain difference, then the temperature difference causes TEG to start working. The greater the temperature difference, the greater the electrical energy produced will be. However, if the temperature difference is too large it will damage the bismuth semiconductor material used. After TEG starts working it will produce voltage and current.
Volume: 18
Issue: 4
Page: 2186-2192
Publish at: 2020-08-01

QR code based authentication method for IoT applications using three security layers

10.12928/telkomnika.v18i4.14748
Abbas M.; Universiti Tenaga Nasional (UNITEN) Al-Ghaili , Hairoladenan; Universiti Tenaga Nasional (UNITEN) Kasim , Marini; Universiti Tenaga Nasional (UNITEN) Othman , Wahidah; Universiti Tenaga Nasional (UNITEN) Hashim
A quick response code-based authentication method (QRAM) is proposed. QRAM is applicable for lots of internet of things (IoT) applications. QRAM aims to verify requests of such an access to IoT applications. Requests are made using a quick response code (QRC). To authenticate contents of QRC, users will scan QRC to access IoT applications. To authenticate contents of QRC, three procedures are applied. QRAM contributes to IoT automatic access systems or smart applications in terms of authentication and safety of access. QRAM is evaluated in term of security factors (e.g., authentication). Computation time of authentication procedures for several IoT applications has become a considerable issue. QRAM aims to reduce computation time consumed to authenticate each QRC. Some authentication techniques still face difficulties when an IoT application requires fast response to users; therefore, QRAM aims to enhance so to meet real-time applications. Thus, QRAM is compared to several competitive methods used to verify QRC in term of computation time. Results confirmed that QRAM is faster than other competitive techniques. Besides, results have shown a high level of complexity in term of decryption time needed to deduce private contents of QRC. QRAM also is robust against unauthorized requests of access.
Volume: 18
Issue: 4
Page: 2004-2011
Publish at: 2020-08-01

Optimal power scheduling of renewable energy sources in micro-grid via distributed energy storage system

10.12928/telkomnika.v18i4.15159
Ibrahim; Universiti Kuala Lumpur (UniKL BMI) Alhamrouni , Firdaus; Universiti Kuala Lumpur (UniKL BMI) Ramli , Mohamed; Universiti Sains Malaysia Salem , Bazilah; Universiti Kuala Lumpur (UniKL BMI) Ismail , Awang; Universiti Teknologi Malaysia Jusoh , Tole; Universitas Ahmad Dahlan Sutikno
This research is mainly focusing on the optimal power management by controlling the charging and discharging modes of the battery storage of the micro-grid (MG). A droop-based controller or battery controller is proposed for this work in order to optimize the power management of the battery. Charging and discharging modes are controlled by the droop-based characteristic where it will perform as a battery controller for the battery storage. Furthermore, the charging and discharging rates will depend on the signal from the MG at power secondary and its signal will be read by the battery controller and choose either to charge or discharge the battery storage where it will suffice the energy demand by loads in the micro-grid. The simulation results show the effectiveness of the controller to control sharing the power based on the desired energy from the battery storage to the loads at the MG. Moreover, all the critical cases have been advised, such as sudden decrease or disturbance of any generating unit. The result has been observed that due to sudden decrease or disturbance of any generating unit, the battery controller manages to control the charging and discharging rate based on the insufficient energy caused by the disturbance to fulfil the demand at MG.
Volume: 18
Issue: 4
Page: 2158-2168
Publish at: 2020-08-01

Comparison of two new methods for implementa BPSK modulator using FPGA

10.11591/ijeecs.v19.i2.pp819-827
Hebibi Amar , Arres Bartil , Lahcene Ziet
The design of electronic systems has become mainly dependent on FPGAs applications. This is due to the softness effectiveness progress by reconfigurable computing and reduced time to develop solutions for digital signal processing. In this article, we present the theoretical backgrounds of a BPSK modulation and hardware designs of the BPSK system, a firstly with the help of Matlab/Simulink reliant on the System Generator and a second with Xilinx ISE VERILOG Hardware Description Language. In order to show the differences between them, in terms of efficiency, duration of development and how many resources are used in FPGA. For the projected system, we have a tendency to aimed toward employing a moderately sized, low-value FPGA to implement the system. The Atlys development board by Digilent to configure develops, and run the system, based on a Xilinx Spartan-6 LX45 FPGA.
Volume: 19
Issue: 2
Page: 819-827
Publish at: 2020-08-01

Heuristic evaluation on mobile halal detection application

10.11591/ijeecs.v19.i2.pp957-963
Ahmad Hasan Ridwan , Irfan Safrudin , Muhammad Ali Ramdhani , Diena Rauda Ramdania
As a country with the largest Muslim population in the world, the halal status of a food and beverage product is essential for the people of Indonesia. An application was created by the government to answer these concerns with the name "Halal MUI". Unfortunately, this application has not been able to meet the needs of users to get a rating of 3.5 out of 920 users. This study aims to provide an evaluation of the Halal MUI application by using a heuristic evaluation approach. As many as three experts did a personal heuristic evaluation, then summarized it in a group discussion forum. The results showed that the application of Halal MUI, in general, has been able to check the halal product. However, some features still have a high severity rating. This paper presents several suggested improvements to improve system usability in Halal MUI applications.
Volume: 19
Issue: 2
Page: 957-963
Publish at: 2020-08-01

Text classification based on gated recurrent unit combines with support vector machine

10.11591/ijece.v10i4.pp3734-3742
Muhammad Zulqarnain , Rozaida Ghazali , Yana Mazwin Mohmad Hassim , Muhammad Rehan
As the amount of unstructured text data that humanity produce largely and a lot of texts are grows on the Internet, so the one of the intelligent technique is require processing it and extracting different types of knowledge from it. Gated recurrent unit (GRU) and support vector machine (SVM) have been successfully used to Natural Language Processing (NLP) systems with comparative, remarkable results. GRU networks perform well in sequential learning tasks and overcome the issues of “vanishing and explosion of gradients in standard recurrent neural networks (RNNs) when captureing long-term dependencies. In this paper, we proposed a text classification model based on improved approaches to this norm by presenting a linear support vector machine (SVM) as the replacement of Softmax in the final output layer of a GRU model. Furthermore, the cross-entropy function shall be replaced with a margin-based function. Empirical results present that the proposed GRU-SVM model achieved comparatively better results than the baseline approaches BLSTM-C, DABN.
Volume: 10
Issue: 4
Page: 3734-3742
Publish at: 2020-08-01

Real power loss diminution by predestination of particles wavering search algorithm

10.11591/ijict.v9i2.pp92-99
Kanagasabai Lenin
In this work Predestination of Particles Wavering Search (PPS) algorithm has been applied to solve optimal reactive power problem. PPS algorithm has been modeled based on the motion of the particles in the exploration space. Normally the movement of the particle is based on gradient and swarming motion.  Particles are permitted to progress in steady velocity in gradient-based progress, but when the outcome is poor when compared to previous upshot, immediately particle rapidity will be upturned with semi of the magnitude and it will help to reach local optimal solution and it is expressed as wavering movement. In standard IEEE 14, 30, 57,118,300 bus systems Proposed Predestination of Particles Wavering Search (PPS) algorithm is evaluated and simulation results show the PPS reduced the power loss efficiently.
Volume: 9
Issue: 2
Page: 92-99
Publish at: 2020-08-01
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