Articles

Access the latest knowledge in applied science, electrical engineering, computer science and information technology, education, and health.

Filter Icon

Filters article

Years

FAQ Arrow
0
0

Source Title

FAQ Arrow

Authors

FAQ Arrow

31,456 Article Results

Low-cost communication system for explorer-class underwater remotely operated vehicle

10.12928/telkomnika.v17i2.11791
Simon; Telkom University Siregar , Muhammad Ikhsan; Telkom University Sani , Muhammad Muchlis; Telkom University Kurnia , Dzikri; Telkom University Hasbialloh
Disaster recovery from underwater earthquake, plane crashes into the sea, and monitoring underwater cables or piping for energy purpose are underwater missions for Remotely Operated Underwater Vehicle (ROV) in ASEAN MATE 2018 Competition. Two essentials factor to perform successfully in this ROV competition are design of an efficient communication protocol system and a low-cost communication hardware. In this research, an optimal communication system between RS-232 serial communication transmission and RS-485 serial communication transmission is developed to obtain the optimal solution. Both communication system is tested in Tech_SAS ROV-Telkom University Indonesia, a microcontroller underwater ROV based which used single microcontroller to control actuator, sensor and communication, and measured the Quality of Services (QoS) for end-to-end delay and packets loss. From the the experiment and evaluation for the two schemes, shows 12.57 ms end-to-end delay, 0% data packet error and $6 RS-485 communication system are the optimal solution for Tech_SAS ROV.
Volume: 17
Issue: 2
Page: 593-600
Publish at: 2019-04-01

Classification of blast cell type on acute myeloid leukemia (AML) based on image morphology of white blood cells

10.12928/telkomnika.v17i2.8666
Wiharto; Universitas Sebelas Maret Wiharto , Esti; Universitas Sebelas Maret Suryani , Yuda Rizki; Universitas Sebelas Maret Putra
AML is one type of cancer of the blood and spinal cord. AML has a number of subtypes including M0 and M1. Both subtypes are distinguished by the dominant blast cell type in the WBC, the myeloblast cells, promyelocyte, and myelocyte. This makes the diagnosis process of leukemia subtype requires identification of blast cells in WBC. Automatic blast cell identification is widely developed but is constrained by the lack of data availability, and uneven distribution for each type of blast cell, resulting in problems of data imbalance. This makes the system developed has poor performance. This study aims to classify blast cell types in WBC identified AML-M0 and AML-M1. The method used is divided into two stages, first pre-processing, image segmentation and feature extraction. The second stage, perform resample, which is continued over sampling with SMOTE. The process is done until the amount of data obtained is relatively the same for each blast cell, then the process of elimination of data duplication, randomize, classification and performance measurement. The validation method used is k-fold cross-validation with k=10. Performance parameters used are sensitivity, specifyicity, accuracy, and AUC. The average performance resulting from classification of cell types in AML with Random Forest algorithm obtained 82.9% sensitivity, 92.1% specificity, 89.6% accuracy and 87.5% AUC. These results indicate a significant improvement compared to the system model without using SMOTE. The performance generated by reference to the AUC value, the proposed system model belongs to either category, so it can be used for further stages of leukemia subtype AML-M0 and AML-M1.
Volume: 17
Issue: 2
Page: 645-652
Publish at: 2019-04-01

Design and implementation of a smart monitoring system for water quality of fish farms

10.11591/ijeecs.v14.i1.pp44-50
Nahla Abdul Jalil Salih , Ihsan Jabbar Hasan , Nadhir Ibrahim Abdulkhaleq
Fish farms are one of the most important sources of profitability for farmers. Therefore, these farms must be cared for and monitored continuously. the paper discuss  a smart system monitoring in a new way that we designed to monitor the quality and temperature of the fish pond’s water. This system has been designed and implemented to measure and monitor the pH and the temperature value of the fish pond’s water in real time. The system is divided into a measuring and monitoring part. The measuring part uses Arduino UNO as a microcontroller to measure the pH and temperature from the sensors. The data is then sent to the second part by Bluetooth. The second part (the monitoring part), is a new  application for smartphone  designed by ‘MIT App Inventor 2’, which monitors the status of the full system. The ‘MIT App Inventor 2’ is a google software (opensource) that enables you to easily build an Android application. The main advantage of this system is its ability to monitor the fish farms from long distances, with low cost and high reliability.
Volume: 14
Issue: 1
Page: 44-50
Publish at: 2019-04-01

Security vulnerabilities related to web-based data

10.12928/telkomnika.v17i2.10484
Mohammed; American University of Ras Al Khaimah Awad , Muhammed; American University of Ras Al Khaimah Ali , Maen; American University of Ras Al Khaimah Takruri , Shereen; American University of Ras Al Khaimah Ismail
In this digital era, organizations and industries are moving towards replacing websites with web applications for many obvious reasons. With this transition towards web-based applications, organizations and industries find themselves surrounded by several threats and vulnerabilities. One of the largest concerns is keeping their infrastructure safe from attacks and misuse. Web security entails applying a set of procedures and practices, by applying several security principles at various layers to protect web servers, web users, and their surrounding environment. In this paper, we will discuss several attacks that may affect web-based applications namely: SQL injection attacks, cookie poisoning, cross-site scripting, and buffer overflow. Additionally, we will discuss detection and prevention methods from such attacks.
Volume: 17
Issue: 2
Page: 852-856
Publish at: 2019-04-01

Voice recognition system for controlling electrical appliances in smart hospital room

10.12928/telkomnika.v17i2.11781
Eva Inaiyah; Universitas Airlangga Agustin , Riky Tri; Universitas Airlangga Yunardi , Aji Akbar; Universitas Airlangga Firdaus
Nowadays, most hospitals have new problem that is lack of medical nurse due to the number of patient increas rapidly. The patient especially with physical disabilities are difficult to control the switch on electrical appliances in patient’s room. This research aims to develope voice recognition based home automation and being applied to patient room. A miniature of patient’s room are made to simulate this system. The patient's voice is received by the microphone and placed close to the patient to reduce the noise.V3 Voice recognition module is used to voice recognition process. Electrical bed of patient is represented by mini bed with utilising motor servo. The lighting of patient room is represented by small lamp with relay. And the help button to call the medical nurse is represented by buzzer. Arduino Uno is used to handle the controlling process. Six basic words with one syllable are used to command for this system. This system can be used after the patient's voice is recorded. This system can recognize voice commands with an accuracy 75%. The accuracy can be improved up to 85% by changing the voice command into two syllables with variations of vowels and identical intonation. Higher accuracy up to 95% can be reached by record all the subject’s voice.
Volume: 17
Issue: 2
Page: 965-972
Publish at: 2019-04-01

K-band waveguide T-junction diplexer for satellite communication

10.12928/telkomnika.v17i2.9205
H.; Faculty of Sciences Tetouan Setti , A.; INPT Rabat Morocco Tribak , A. El; Faculty of Sciences Tetouan Hamichi , J.; Hassan 1st University Settat Morocco Zbitou , A.; University of Cantabria Santander Mediavilla
Design and measurement of two waveguide diplexers on H-plane T-junction, are presented. The two diplexers structures consist of a waveguide H-plane T-junction and two waveguide obtained cavity filters. The two diplexers operate in the same frequency bands (17 GHz-19.5 GHz). The simulation results show that over the operating band of two filters, the return losses are better than 18 dB and insertion losses are lower than 0.05 dB. The proposed diplexers have been simulated using Mician μ Wave Wizard simulator based on the mode matching method (MMM). The diplexers have been validated experimentally and results are presented. Simulated and measured results show good agreement.
Volume: 17
Issue: 2
Page: 549-554
Publish at: 2019-04-01

K-means and bayesian networks to determine building damage levels

10.12928/telkomnika.v17i2.11756
Devni Prima; Gadjah Mada University Negeri Padang University Sari , Dedi; Gadjah Mada University Rosadi , Adhitya Ronnie; Gadjah Mada University Effendie , Danardono; Gadjah Mada University Danardono
Many troubles in life require decision-making with convoluted processes because they are caused by uncertainty about the process of relationships that appear in the system. This problem leads to the creation of a model called the Bayesian Network. Bayesian Network is a Bayesian supported development supported by computing advancements. The Bayesian network has also been developed in various fields. At this time, information can implement Bayesian Networks in determining the extent of damage to buildings using individual building data. In practice, there is mixed data which is a combination of continuous and discrete variables. Therefore, to simplify the study it is assumed that all variables are discrete in order to solve practical problems in the implementation of theory. Discretization method used is the K-Means clustering because the percentage of validity obtained by this method is greater than the binning method.
Volume: 17
Issue: 2
Page: 719-727
Publish at: 2019-04-01

Remote sensing technology for disaster mitigation and regional infrastructure planning in urban area: a review

10.12928/telkomnika.v17i2.12242
Muhammad; University of Indonesia Dimyati , Akhmad; Islamic University of Indonesia Fauzy , Anggara Setyabawana; Islamic University of Indonesia Putra
A Very high intensity of regional development is ubiquitous in urban areas. Therefore, urban development requires a proper spatial development strategy in many facets, especially social aspect and disaster potential. The essence of social aspect lies in the prevailing norms and local wisdom that have long existed and become the basis of community life. Inducing various effects on infrastructure development, disaster potential has to be considered as well. Disaster mitigation measures can start with the use of continually developing remote sensing technology, which provides a basis for preparing sustainable development planning. The realization of these measures in urban areas demands specific adjustment to the environmental conditions. This study aimed to examine the capacity of remote sensing data to support disaster mitigation and infrastructure planning based on energy conservation in urban areas. The results indicate that remote sensing technology can be an option for sustainable development planning in urban areas.
Volume: 17
Issue: 2
Page: 601-608
Publish at: 2019-04-01

Government role in influencing creative economy for community purchasing power

10.12928/telkomnika.v17i2.9711
Dedeh; Institut Pemerintahan Dalam Negeri (IPDN) Maryani , Rossy; Institut Pemerintahan Dalam Negeri (IPDN) Lambelanova
This research was conducted to find out whether the West Java provincial government has implemented the development of creative economy by looking at the form of policy and budget support in APBD and the problem. The results show, West Java Provincial Government has made regional regulations and creative economic blueprints. It is suggested to be more committed to facilitate the marketing of results, facilitate business actor access to banking, protection of intellectual property rights, and enhancement of cooperation between provinces and districts/municipalities for the sustainability of necessary raw materials.
Volume: 17
Issue: 2
Page: 835-843
Publish at: 2019-04-01

Dynamic performance comparison of DFIG and FCWECS during grid faults

10.12928/telkomnika.v17i2.11747
A. M. Shiddiq; Politeknik Negeri Ujung Pandang Yunus , Makmur; Politeknik Negeri Ujung Pandang Saini , Ahmed; Curtin University Abu-Siada
Among several types, variable speed-based wind turbine generator (WTG) is the most popular type installed worldwide. This type of WTG is able to extract 5% more energy from wind speed compared to the fixed speed WTG. There are two kinds of variable speed based WTG; Doubly Fed Induction Generator (DFIG) and Full Converter Wind Energy Conversion System (FCWECS). DFIG and FCWECS are placed at the first and second topWTG installation worldwide since 2004. However, both of them are very sensitive to the grid dip fault and may violate the allowable margins identified by various international Fault Ride Through (FRT) codes. This paper aims to investigate the responses of DFIG and FCWECS during certain level of grid dips and compare their performanceunder such event. Results show some differences of the performance of DFIG and FCWECS during voltage sag event, however the voltage profile at the point of common coupling is much better in case of DFIG. Results also recommend that DFIG can be effective when connected to weak grids whilst FCWECS is preferably to be connected to strong grids.
Volume: 17
Issue: 2
Page: 1040-1046
Publish at: 2019-04-01

Classification of medical datasets using back propagation neural network powered by genetic-based features elector

10.11591/ijece.v9i2.pp1379-1384
Hussein Attya Lafta , Zainab Falah Hasan , Noor Kadhim Ayoob
The classification is a one of the most indispensable domains in   the data mining and machine learning. The classification process has a good reputation in the area of diseases diagnosis by computer systems where the progress in smart technologies of computer can be invested in diagnosing various diseases based on data of real patients documented in databases. The paper introduced a methodology for diagnosing a set of diseases including two types of cancer (breast cancer and lung), two datasets for diabetes and heart attack. Back Propagation Neural Network plays the role of classifier. The performance of neural net is enhanced by using the genetic algorithm which provides the classifier with the optimal features to raise the classification rate to the highest possible. The system showed high efficiency in dealing with databases differs from each other in size, number of features and nature of the data and this is what the results illustrated, where the ratio of the classification reached to 100% in most datasets).
Volume: 9
Issue: 2
Page: 1379-1384
Publish at: 2019-04-01

An artificial intelligent approach for the optimization of organic rankine cycle power generation systems

10.11591/ijeecs.v14.i1.pp340-345
JianDing Tan , ChinWai Lim , SiawPaw Koh , SiehKiong Tiong , YingYing Koay
The study on Organic Rankine Cycle (ORC) power generation system has gained significant popularity among researchers over the past decade, mainly due to the financial and environmental benefits that the system provides. A good maximum power point tracking (MPPT) mechanism can push the efficiency of an ORC to a higher rate. In this research, a Self-Adjusted Peak Search algorithm (SAPS) is proposed as the MPPT scheme of an ORC system. The SAPS has the ability to perform a relatively detailed search when the convergence reaches the near-optima peak without jeopardizing the speed of the overall convergence process. The SAPS is tested in a simulation to track for a moving maximum power pint (MPP) of an ORC system. Experiment results show that the SAPS outperformed several other well-established optimization algorithm in tracking the moving MPP, especially in term of the solution accuracies. It can thus be concluded that the proposed SAPS performs well as a mean of an MPPT scheme in an ORC system
Volume: 14
Issue: 1
Page: 340-345
Publish at: 2019-04-01

Security risk analysis of bring your own device system in manufacturing company at Tangerang

10.12928/telkomnika.v17i2.10165
Astari; Bina Nusantara University Retnowardhani , Raziv Herman; Bina Nusantara University Diputra , Yaya Sudarya; Universitas Mercu Buana Triana
Nowadays information system has become popular used for help effectiveness and efficiency operation on a company. Bring Your Own Device (BYOD) system is a growing trend in corporate environment, where employees could access the system from anywhere. BYOD system is system information development using some technology like a Virtual Private Networks (VPN) or using some application to make the client on outside network office can access to inside networks with remote system. The remote system has strength to help employees working anywhere and anytime, that could make some issue for a security thing. The security issue that can be happen is unauthorized access and lost some important of company information. XYZ company as a manufacturing company in Tangerang, Indonesia has been used BYOD system in their company. They want to improve the security of the system with do risk analysis, with the aim to protect the internal data. The risk analysis use Cybersecurity Framework NIST will assist organizations to understand the risk of BYOD system. The analysist results obtained by the use of cybersecurity analysis on BYOD system in XYZ company are found some improvement need to develop in terms of security system recommended. According to the stages of respond with the analysis using Cybersecurity NIST framework and ISO/IEC 27002:2013.
Volume: 17
Issue: 2
Page: 753-762
Publish at: 2019-04-01

Nonlinearity compensation of low-frequency loudspeaker response using internal model controller

10.12928/telkomnika.v17i2.11761
Erni; Brawijaya University Yudaningtyas , Achsanul; State Polytechnic of Malang Khabib , Waru; Brawijaya University Djuriatno , Dionysius J. D. H.; Brawijaya University Santjojo , Adharul; Brawijaya University Muttaqin , Ponco; Brawijaya University Siwindarto , Zakiyah; State Polytechnic of Malang Amalia
This paper presents the nonlinearity compensation of low-frequency loudspeaker response. The loudspeaker is dedicated to measuring the response of Electret Condenser Microphone which operated in the arterial pulse region. The nonlinearity of loudspeaker has several problems which cause the nonlinearity behaviour consists of the back electromagnetic field, spring, mass of cone and inductance. Nonlinearity compensation is done using the Internal Model Controller with voltage feedback linearization. Several signal tests consist of step, impulse and sine wave signal are examined on different frequencies to validate the effectiveness of the design. The result showed that the Internal Mode Controller can achieve the high-speed response with a small error value.
Volume: 17
Issue: 2
Page: 946-955
Publish at: 2019-04-01

A computer vision based image processing system for depression detection among students for counseling

10.11591/ijeecs.v14.i1.pp503-512
Sandhya Parameswaran Namboodiri , Venkataraman D
Psychological problems in college students like depression, pessimism, eccentricity, anxiety etc. are caused principally due to the neglect of continuous monitoring of students’ psychological well-being. Identification of depression at college level is desirable so that it can be controlled by giving better counseling at the starting stage itself. The disturbed mental state of a student suffering from depression would be clearly evident in the student’s facial expressions.Identification of depression in large group of college students becomes a tedious task for an individual. But advances in the Image-Processing field have led to the development of effective systems, which prove capable of detecting emotions from facial images, in a much simpler way. Thus, we need an automated system that captures facial images of students and analyze them, for effective detection of depression. In the proposed system, an attempt is being made to make use of the Image processing techniques, to study the frontal face features of college students and predict depression. This automated system will be trained with facial features of positive and negative facial emotions. To predict depression, a video of the student is captured, from which the face of the student is extracted. Then using Gabor filters, the facial features are extracted. Classification of these facial features is done using SVM classifier. The level of depression is identified by calculating the amount of negative emotions present in the entire video. Based on the level of depression, notification is send to the class advisor, department counselor or university counselor, indicating the student’s disturbed mental state. The present system works with an accuracy of 64.38%. The paper concludes with the description of an extended architecture for depression detection as future work.
Volume: 14
Issue: 1
Page: 503-512
Publish at: 2019-04-01
Show 1422 of 2098

Discover Our Library

Embark on a journey through our expansive collection of articles and let curiosity lead your path to innovation.

Explore Now
Library 3D Ilustration