Articles

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

Advanced Search
Filter Icon

Filters article

Years

FAQ Arrow
Single Year
Range Year
0
0

Source Title

FAQ Arrow

Authors

FAQ Arrow

27,544 Article Results

Low-cost and Portable Process Control Laboratory Kit

10.12928/telkomnika.v16i1.6888
Ade Gafar; Universitas Pendidikan Indonesia Abdullah , Dadang Lukman; Universitas Pendidikan Indonesia Hakim , Muhammad Afif; Universitas Pendidikan Indonesia Auliya , Asep Bayu Dani; Universitas Pendidikan Indonesia Nandiyanto , Lala Septem; Universitas Pendidikan Indonesia Riza
The purpose of this study was to demonstrate a new design of low-cost and portable laboratory kit that is prospective for supporting teaching and learning on the automation process. The kit consists of the water tank filling system (sizes of 50 mL; as a model for describing reallistic tank in the plant) equipped with a programmable logic controller (PLC) integrated with SCADA system, human machine interface (HMI) monitor, reservoir, temperature, water level sensors, mixer, and heater. To be adaptable in any types of classroom, the kit was placed on the portable table (length x width x height of 100 x 50 x 150 cm). To approach the industrial tank system in industry, the tank was designed to be mixed and connected to other tank, and the temperature and water volumetric (water level) was controllable. To examine the impact of the designed kit on the improvement of teaching and learning process, the problem based learning (PBL) approach was also conducted in class. The economic analysis result showed that the present kit is inexpensive and portable, compared to other commercially available kits/devices. The PBL results showed that the kit is simple and to give better illustrations for students to comprehend the process control system in the realistic application in industry. Further developments of this kit is potentially implemented as an experimental tool for undergraduate students.
Volume: 16
Issue: 1
Page: 232-240
Publish at: 2018-02-01

Capacity Improvement and Protection of LTE Network on Ethernet Based Technique

10.12928/telkomnika.v16i1.7674
Fadli; Universitas Mercu Buana Jakarta Sirait , Akhmad Wahyu; Universitas Mercu Buana Dani , Triyanto; Universitas Mercu Buana Pangaribowo
High demands for data rates in mobile communications is the reason for developing broadband wireless access technologies. Long Term Evolution (4G LTE) networks which offer significantly higher data rates and require suitably higher capacity backhaul networks. To prepare for the high data rates usage in 4G LTE, operators are using ethernet services in terms of backhaul connectivity. Protection packet switching developed to anticipated network failure on ethernet based network technology. The failures in the network include the link fails to connect to each network element, the network element fails to transfer the data to the destination, or the quality drops below the standard. In this paper we used two ethernet based technique, namely Ethernet over SDH and MPLS-TP with ring protection to anticipated network failure on these techniques. Furthermore, we measured performance of network by measuring and comparing the throughput, latency and jitter between Ethernet over SDH and MPLS-TP. We used bandwidth capacity 240 Mbps as plant bandwidth link and worked in MIMO 2 2. The results of measurements indicated that MPLS-TP with ring protection is the best technique to enhanced the performance of LTE network.
Volume: 16
Issue: 1
Page: 200-209
Publish at: 2018-02-01

Electrical Interference Problemson Commercial Fishing Vessels – A Review

10.11591/ijeecs.v9.i2.pp271-274
Pankaj Kumar Sinha , Preetha Sharan
Canadian Coast Guard (CCG) provides Marine Communications centre (MCC) with financial assistance surveyed for Electromagnetic Compatibility and Electromagnetic Interference (EMC/EMI) correlated troubles on industrial based fishing vessels less than twenty metres. The electrical condition should be provided for the vessels and it is the goal of the survey. By performing "electrical noise" measurement method the necessary data was obtained. Several autopilot systems are susceptible to High Frequency Single Side Band (HF SSB) transmitters due to the absence of electrical noise suppression scheme. The main objective of the survey is to analyse the better electrical noise suppression method for fishing vessels.
Volume: 9
Issue: 2
Page: 271-274
Publish at: 2018-02-01

A Survey on Knowledge Transfer between Knowledge-based Systems

10.12928/telkomnika.v16i1.6517
Nyoman; Institut Teknologi Bandung Karna , Iping; Institut Teknologi Bandung Supriana , Nur; Institut Teknologi Bandung Maulidevi
The paper aims to clarify differences in knowledge sharing mechanisms between Knowledge-based Systems, including knowledge management system, web page-based knowledge, and expert system, in the hope that we can establish an automatic knowledge transfer between autonomous systems. This study lays the foundation for knowledge transfer mechanism where an autonomous Knowledge-based System may enhance its knowledge by using other system's knowledge. To design a knowledge transfer mechanism, the paper do a literature study by comparing three well-known protocols for knowledge sharing, OAI-PMH for knowledge management system, SPARQL for web page-based knowledge, and KQML for the expert system. The object of comparison is within three aspects, first is the ability to find another system, the second is knowledge retrieval from chosen system and third is how to add new knowledge into the system. The paper suggests that each protocol has its own strength and weakness, but when it comes to knowledge transfer, KQML covers more features. Therefore, based on this finding, the paper proposes a new model for autonomous knowledge transfer using KQML to enhance one Knowledge-based System's own knowledge.
Volume: 16
Issue: 1
Page: 265-273
Publish at: 2018-02-01

Pm-EEMRP: Postural Movement Based Energy Efficient Multi-hop Routing Protocol for Intra Wireless Body Sensor Network (Intra-WBSN)

10.12928/telkomnika.v16i1.7318
Tarique; Motilal Nehru Institute of National Institute of Technology Allahabad Rashid , Sunil; Motilal Nehru Institute of National Institute of Technology Allahabad Kumar , Akshay; Motilal Nehru Institute of National Institute of Technology Allahabad Verma , Prateek Raj; Motilal Nehru Institute of National Institute of Technology Allahabad Gautam , Arvind; Motilal Nehru Institute of National Institute of Technology Allahabad Kumar
Intra-WBSN plays an important role in health monitoring, military and consumer electronics. It iscomposed of wireless bio-sensor nodes which are strategically placed on the body. Due to body posture movement, network topology of Intra-WBSN changes continuously. It plays a significant role in Intra-WBSN. In proposed Pm-EEMRP, network stability, energy efficiency and high throughput are the prime parametersfor body posture movement in which sensing informations from bio-sensor nodes are forwarded to relay nodes. Relay nodesare deployed in cloths, which aggregate these data and forward it to body network controller (BNC). It provides reliable and comfortable health monitoring. Through simulation, the proposed routing protocol provides better network stability, improved energy efficiency and high throughput in comparison to conventional routing schemes.
Volume: 16
Issue: 1
Page: 166-173
Publish at: 2018-02-01

Performance of Support Vector Machine in Classifying EEG Signal of Dyslexic Children using RBF Kernel

10.11591/ijeecs.v9.i2.pp403-409
AZA Zainuddin , W. Mansor , Khuan Y. Lee , Z. Mahmoodin
Dyslexia is referred as learning disability that causes learner having difficulties in decoding, reading and writing words. This disability associates with learning processing region in the human brain. Activities in this region can be examined using electroencephalogram (EEG) which record electrical activity during learning process. This study looks into performance of Support Vector Machine (SVM) using RBF kernel in classifying EEG signal of Normal, Poor and Capable Dyslexic children during writing words and non-words. Discrete Wavelet Transform (DWT) with Daubechies order 2 was employed to extract the power of beta and theta waves of EEG signal. Beta and Theta/Beta ratio form the input features for classifier.  Multiclass one versus one SVM was used in the classification where RBF kernel parameters and box constraint values were varied with the factor of 10 to analyze performance of the classifier. It was found that the best performance of SVM with 91% overall accuracy was obtained when both kernel scale and box constraint are set to one.
Volume: 9
Issue: 2
Page: 403-409
Publish at: 2018-02-01

Evaluation of Power Minimization for Routing Protocol and Multicast Networks

10.11591/ijeecs.v9.i2.pp299-301
Shabir Ahmed mir , T Padma
In this paper explore the scenario of wireless multicast with a single source and multiple relay that together convey consecutively refined sources to multiple receiver. Joint source-channel coding (JSCC) protocol is proposed aimed at mitigating the complexity and difficulty in signal synchronization in multicast taking end-to-end mean cube error deformation  as the quality of service measure the problems of JSCC communication are formulated to minimize the total power utilization where both relay selection and power allocation at the base station (BS) and all the relays are jointly determined  to solve the formulated problem that is nonetheless nonlinear in nature a two-step iterative algorithm is investigated for power allocations at all transmitters where a in order quadratic programming method is developed into find a strict local minimum. To reduce the computation complexity a heuristic algorithm for relay selection is presented. Case studies are conducted to verify the proposed formulations and solution methods.
Volume: 9
Issue: 2
Page: 299-301
Publish at: 2018-02-01

Modeling and Simulation of Biaxial Strained P-MOSFETs: Application to a Single and Dual Channel Heterostructure

10.11591/ijece.v8i1.pp421-428
Amine Mohammed Taberkit , Ahlam Guen-Bouazza , Benyounes Bouazza
The objectives of this work are focused on the application of strained silicon on MOSFET transistor. To do this, impact and benefits obtained with the use of strained silicon technology on p-channel MOSFETs are presented. This research attempt to create conventional and two-strained silicon MOSFETs fabricated from the use of TCAD, which is a simulation tool from Silvaco. In our research, two-dimensional simulation of conventional MOSFET, biaxial strained PMOSFET and dual channel strained P-MOSFET has been achieved to extract their characteristics. ATHENA and ATLAS have been used to simulate the process and validate the electronic characteristics. Our results allow showing improvements obtained by comparing the three structures and their characteristics. The maximum of carrier mobility improvement is achieved with percentage of 35.29 % and 70.59 % respectively, by result an improvement in drive current with percentage of 36.54 % and 236.71 %, and reduction of leakage current with percentage of 59.45 % and 82.75 %, the threshold voltage is also enhaced with percentage of: 60 % and 61.4%. Our simulation results highlight the importance of incorporating strain technology in MOSFET transistors.
Volume: 8
Issue: 1
Page: 421-428
Publish at: 2018-02-01

Improving the Performance of Viterbi Decoder using Window System

10.11591/ijece.v8i1.pp611-621
Rekkal Kahina , Abdesselam Bassou
An efficient Viterbi decoder is introduced in this paper; it is called Viterbi decoder with window system. The simulation results, over Gaussian channels, are performed from rate 1/2, 1/3 and 2/3 joined to TCM encoder with memory in order of 2, 3. These results show that the proposed scheme outperforms the classical Viterbi by a gain of 1 dB. On the other hand, we propose a function called RSCPOLY2TRELLIS, for recursive systematic convolutional (RSC) encoder which creates the trellis structure of a recursive systematic convolutional encoder from the matrix “H”. Moreover, we present a comparison between the decoding algorithms of the TCM encoder like Viterbi soft and hard, and the variants of the MAP decoder known as BCJR or forward-backward algorithm which is very performant in decoding TCM, but depends on the size of the code, the memory, and the CPU requirements of the application.
Volume: 8
Issue: 1
Page: 611-621
Publish at: 2018-02-01

A Study of Superconducting Transformer with Short-Circuit Current Limitation

10.11591/ijece.v8i1.pp505-512
V.Z. Manusov , D.A. Pavlyuchenko , J.S. Ahyoev
The paper presents physico-mathematical models for analyzing transient processes in electrical networks having transformers with a high temperature superconducting winding. One of the main purposes of the study is the investigation of the short circuit current limitation process with the use of a transformer with a high temperature superconducting winding, that allows the combination of two series-connected elements, transformer and reactor, in one device. The efficiency of this method for short circuit current limitation is provided by the fact that the critical value of superconducting winding temperature is exceeded under short circuit current flowing, then it passes into the normal state with a high impedance winding, thus limiting a short circuit current. It is important to know the moment when superconducting material passes into the normal state with the loss of superconductivity. For this purpose, the program for calculating the quantity of heat under short circuit current flowing before its interruption was developed. If a 40 MVA transformer with a high temperature superconducting winding is considered, short circuit should be cleared after 100 ms without transformer disconnection. It is proposed to use a hybrid winding in addition to the main winding for short circuit current limitation. Conducted investigations showed that the return of a winding into the superconducting state depends primarily on the ratio between a short circuit current and a rated load current. This represents the criterion for returning or not returning into the superconducting state for transformer windings.
Volume: 8
Issue: 1
Page: 505-512
Publish at: 2018-02-01

Visual-Based Fingertip Detection for Hand Rehabilitation

10.11591/ijeecs.v9.i2.pp474-480
Dayang Qurratu’aini , Ali Sophian , Wahju Sediono , Hazlina Md Yusof , Sud Sudirman
This paper presents a visual detection of fingertips by using a classification technique based on the bag-of-words method. In this work, the fingertips are specifically of people who are are holding a therapy ball, as it is intended to be used in a hand rehabilitation project. Speeded Up Robust Features (SURF) descriptors are used to generate feature vectors and then the bag-of-feature model is constructed by K-mean clustering which reduces the number of features. Finally, a Support Vector Machine (SVM) is trained to produce a classifier that distinguishes whether the feature vector belongs to a fingertip or not. A total of 4200 images, 2100 fingertip images and 2100 non-fingertip images, were used in the experiment. Our results show that the success rates for the fingertip detection are higher than 94% which demonstrates that the proposed method produces a promising result for fingertip detection for therapy-ball-holding hands.
Volume: 9
Issue: 2
Page: 474-480
Publish at: 2018-02-01

Dual Input Z-Source Inverter Fed PMSM Based Renewable Energy

10.11591/ijeecs.v9.i2.pp257-261
V Karthikeyan
The proposed paper produces the high gain and low harmonic content in the permanent magnet synchronous motor fed Z-source inverter. The hybrid solar and fuel-based motor produces more power by using the direct torque control. The control based PMSM fed inverter for continuous power production. The dc bus voltage is regulated by using the DTC based PMSM. The speed of a permanent magnet synchronous motor is regulated, and the proposed DTC is minimizing the torque and flux ripple. In order to produce maximum power at the dc link and also improve the performance of PMSM in Matlab/ Simulink software.
Volume: 9
Issue: 2
Page: 257-261
Publish at: 2018-02-01

The Indonesia Public Information Disclosure Act (UU-KIP): Its Challenges and Responses

10.11591/ijece.v8i1.pp94-103
Muharman Lubis , Tien Fabrianti Kusumasari , Lukmanul Hakim
Information Public Disclosure is one of the regulation that has purpose to encourage good governance for public service and citizen participation in national development. The enactment of Act No.14/2008 (UU KIP) has been strengthen the mandate to enforce the necessity of information disclosure in actualizing transparency and accountability in resource management and budget uses. It also become the primary instrument to prevent corruption, monopolistic competition and information disputes. However, there are certain provinces has not yet established information committee nor when it will be as entrusted by the regulation. Meanwhile, the remedies in term of jail duration and fines, arguably, it could not create deterrent effect to the perpetrator. Furthermore, the concern from ministry and public institution also in question in regard their roles of responsibility, lack of cooperation and continuous support. Thus, human resource, technology infrastructure, public participation, supervision and socialization become crucial factor to increase the awareness and satisfaction towards this regulatory compliance. This study is a qualitative research to evaluate the implementation of this Act by observing its consideration, background, principles and relevant article verses as primary sources through content analysis based on number of legal experts.
Volume: 8
Issue: 1
Page: 94-103
Publish at: 2018-02-01

Traffic Light Signal Parameters Optimization using Modification of Multielement Genetic Algorithm

10.11591/ijece.v8i1.pp246-253
I Gede Pasek Suta Wijaya , Keeichi Uchimura , Gou Koutaki
A strategy to optimize traffic light signal parameters is presented for solving traffic congestion problem using modification of the Multielement Genetic Algorithm (MEGA). The aim of this method is to improve the lack of vehicle throughput (FF ) of the works called as traffic light signal parameters optimization using the MEGA and Particle Swarm Optimization (PSO). In this case, the modification of MEGA is done by adding Hash-Table for saving some best populations for accelerating the recombination process of MEGA which is shortly called as H-MEGA. The experimental results show that the H-MEGA based optimization provides better performance than MEGA and PSO based methods (improving the FF of both MEGA and PSO based optimization methods by about 10.01% (from 82,63% to 92.64%) and 6.88% (from 85.76% to 92.64%), respectively). In addition, the H-MEGA improve significantly the real FF of Ooe Toroku road network of Kumamoto City, Japan about 21.62%.
Volume: 8
Issue: 1
Page: 246-253
Publish at: 2018-02-01

A Unified Approach for Performance Degradation Analysis from Transistor to Gate Level

10.11591/ijece.v8i1.pp412-420
Izhar Hussain , Marco Vacca , Fabrizio Riente , Mariagrazia Graziano
In this paper, we present an extensive analysis of the performance degradation in MOSFET based circuits. The physical effects that we consider are the random dopant fluctuation (RDF), the oxide thickness fluctuation (OTF) and the Hot-carrier-Instability (HCI). The work that we propose is based on two main key points: First, the performance degradation is studied considering BULK, Silicon-On-Insulator (SOI) and Double Gate (DG) MOSFET technologies. The analysis considers technology nodes from 45nm to 11nm. For the HCI effect we consider also the time-dependent evolution of the parameters of the circuit. Second, the analysis is performed from transistor level to gate level. Models are used to evaluate the variation of transistors key parameters, and how these variation affects performance at gate level as well.The work here presented was obtained using TAMTAMS Web, an open and publicly available framework for analysis of circuits based on transistors. The use of TAMTAMS Web greatly increases the value of this work, given that the analysis can be easily extended and improved in both complexity and depth.
Volume: 8
Issue: 1
Page: 412-420
Publish at: 2018-02-01
1 2 3
...
1836 1837
Show 1335 of 1837

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