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INDONESIA
Indonesian Journal of Electrical Engineering and Computer Science
Published by Institute of Advanced Engineering and Science
ISSN : 25024752     EISSN : 25024760     DOI : -
Core Subject :
Arjuna Subject : -
Articles 9,226 Documents
 218   219   220   221   222 
A study on non-linear behavior of memristor emulator using multisim Eadala Sarath Yadav; Rajesh B; Srinivasan C.R; Sai Kalyan P
Indonesian Journal of Electrical Engineering and Computer Science Vol 16, No 3: December 2019
Publisher : Institute of Advanced Engineering and Science

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Abstract

A Memristor (memory resistor) is a two terminal non-linear passive element used to relate magnetic flux with respect to electric charge. A Memristor opposes the flow of electric current across a device like a resistor but also remember the last charge that was flowing through it.  Memristor is a fourth passive circuit element after inductor ‘L’ resistor ‘R’, and capacitor ‘C. The voltage and current relationship in a memristor is a multivariable function therefore analyzing the circuit is a difficult task. This paper depicts the designing of a memristor model emulator using multisim and studied about its linear and non-linear characteristics.
Enhancement Fault Ride-Through Capability of DFIG By Using Resistive and Inductive SFCLs Ali Azizpour; Mehdi Hosseini; Mahmoud Samiei Moghaddam
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 8: August 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i8.pp5946-5953

Abstract

The number of wind turbines connected to the grid is steadily increasing in recent years. This situation forced the revision of the electric utilities grid codes requirements, to remain connected during grid faults, i.e., to ride through the faults, especially for those with power electronic converters, such as DFIGs. In fault condition, the voltage at the Point of Common Coupling (PCC) drops immediately and The grid voltage dips imposed at the connection point of the DFIG to the grid induce large voltages in the rotor windings, resulting in high rotor current, which can damage the rotor-side converter and disconnect from grid.  In this paper, resistive and inductive superconducting fault current limiter (SFCL) is used to improve the fault ride- through (FRT) of wind turbine generation system (WTGS). The WTGS is considered as a variable-speed system, equipped with a DFIG. The analytical and simulation studies of the resistive SFCL for improving FRT capability are presented and compared with the inductive SFCL.
A Robot Control System Based on Gesture Recognition Using Kinect Biao MA; Wensheng XU; Songlin WANG
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

The Kinect camera is widely used for capturing human body images and human motion recognition in video game playing, and there are already some research works on gesture recognition. However, to achieve the anti-interference performance, the current recognition algorithms are often complex and tardiness, and most of the applications are based on the incomplete gesture library and not all hand gestures can be recognized. This paper explores a new method and algorithm which can describe all five fingertips for each hand in any time for hand gesture recognition with the Kinect system. The hand images are processed to build the hand models which are then compared with the gesture library for gesture recognition. After hand gestures are recognized with high accuracy and less computing, control commands corresponding to hand gestures are sent from the hand gesture recognition system to a hexagon robot controller wirelessly, the hexagon robot can then be controlled wirelessly and change its shape according to the hand gesture command. Thus the robot can interact with humans promptly through the gesture recognition system. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2493
PAPR Reduction Techniques in Generalized Inverse Discrete Fourier Transform Non-Orthogonal Frequency Division Multiplexing System Iram Maisarah Mokhtar; Norulhusna Ahmad; Hazilah Mad Kaidi; Mohd Azri Mohd Izhar; Norliza Mohamed
Indonesian Journal of Electrical Engineering and Computer Science Vol 10, No 3: June 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v10.i3.pp1045-1052

Abstract

A promising system of Generalized Inverse Discrete Fourier Transform Non-Orthogonal Frequency Division Multiplexing (GIDFT n-OFDM) system can fulfil the requirement of supporting higher data rate in Fifth Generation (5G) technology. However, this system experience High Peak to Average Power Ratio (PAPR) due to massive number of subcarriers signal is transmitted. In this paper, three types of usual PAPR reduction techniques were applied in GIDFT n-OFDM system which are Clipping, Partial transmit Transform (PTS) and Selective Mapping (SLM). The system performance is compared and evaluated using Complementary Cumulative Distribution Function (CCDF) plot. Simulation results show that SLM technique give significant reduction of PAPR 9 dB of the original performance.
Nonlinear Classifier Design Research Based on SVM and Genetic Algorithm Wenjuan Zeng; Haibo Gao
Indonesian Journal of Electrical Engineering and Computer Science Vol 13, No 1: January 2015
Publisher : Institute of Advanced Engineering and Science

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Abstract

This paper presents a support vector machine (SVM) model structure, the genetic algorithm parameters of the model portfolio optimization model, and used for non-linear pattern recognition, the method is not only effective for linear problems, nonlinear problems apply effective; the law simple and easy, better than the multi-segment linear classifier design methods and BP network algorithm returns the error. Examples show the efficiency of its recognition of 100%. DOI:  http://dx.doi.org/10.11591/telkomnika.v13i1.6692 
Building Integrated Photovoltaic Market trend and its Applications M Tripathy; P K Sadhu
Indonesian Journal of Electrical Engineering and Computer Science Vol 14, No 2: May 2015
Publisher : Institute of Advanced Engineering and Science

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Abstract

The development of BIPV technology and their implementation in construction of building envelop provides an aesthetical, economical and technical solution. This paper presents the building envelope products, and their properties. BIPV products for pitched roof, flat and curved roof, transparent and semi-transparent facades and skylights have been highlighted in the paper. The properties of BIPV products include solar cell efficiency, open circuit voltage, and short circuit current, maximum power and fill factor. Few successful worldwide existing BIPV Projects with different product categories are also listed in a tabular form. The major considerations for a successful project are proper orientation of BIPV module, suitable distance between buildings, avoidance shadow effects and suitable architectural considerations BIPV technology is a sustainable and cost effective method and the future of this technology is promising as it creates zero energy and zero emission buildings. DOI: http://dx.doi.org/10.11591/telkomnika.v14i2.7338 
Application of Virtual Instrument in Electronic Education Zhongbao Ji
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 9: September 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

Virtual instrumentation is defined as the combination of measurement and control hardware and application software with industry-standard computer technology to create user-defined instrumentation systems. Since the birth of virtual instrument (VI), it enters rapidly into the industrial production field, and Research and Development (RD) field. It can improve production quality, shorten development time, and increase production efficiency. So it is wildly used in companies. In order to improve the ability of students’ using new technology and equipment, and save daily funds, we try to use virtual instrument instead of traditional instruments for analysis and design circuits. The paper adopts the software-LabVIEW and many hardware modules of NI (National Instrument) to study of virtual instrument applied in electronic education of vocational college. The research result of this work can provide a theoretical and practical foundation for vocational education of virtual instrument in the future. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3306 
Development of a 3D bio-printer using CoreXY mechanism and syringe-based extrusion Chin Fhong Soon; Mohammad Faez Ramilan; Dirman Hanafi; Wan Nurshazwani Wan Zakaria; Safinaz Mohd Khialdin; Hazlita Isa; Kian Sek Tee
Indonesian Journal of Electrical Engineering and Computer Science Vol 18, No 3: June 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v18.i3.pp1180-1187

Abstract

3D Bio-printer is said to have potential in the applications of medical studies and tissue engineering. A 3D Bio-printer could be used to print the artificial organs for organs transplant and cell tissue culture for generating new cell tissue. It could help in future medical and biological research. This paper presents the development process, i.e. working principle of Fused Deposition Modelling (FDM), mechanical, electrical and related applied software, of a 3D Bio-printer using syringe-based extruder and Core XY mechanism. Up to date, FDM is a popular technique because it is easily implemented, precise and accurate. The printed product revealed high repeativity, where (sample mean, sample standard deviation) is (  mm. The procedure could help future customized 3D Bio-printer. 
Key Technology of Agricultural Production and Market Information Matching in Big Data Era Shuo Wang; Shihong Liu
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 3: March 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

This article describes challenges faced by agricultural production and marketing in the era of big data, and then builds the agricultural market information matching platform based on HADOOP & NUTCH combining cloud computing technology, finally details its layers and key technologies, including the use of open source search engine to capture the whole network market information to build agricultural production and market data sources, users’ interest model and the combination of matching algorithm and HADOOP environment. The aim of this paper is to make the agricultural market information matching platform more suitable for Chinese agricultural production and marketing system in order to solve the bottleneck problems such as information overload, lack of storage space, scalability and efficiency of analysis and calculation. As a result, this thesis provides a useful reference and new strategy for analysis and mining of big data in agricultural production and marketing areas. DOI : http://dx.doi.org/10.11591/telkomnika.v12i3.4489  
Research on Service Life Prediction Model of Thrust Needle Bearing Hu Zhanqi; Qi Xiaowen; Fan Bingli; Li Wei
Indonesian Journal of Electrical Engineering and Computer Science Vol 10, No 7: November 2012
Publisher : Institute of Advanced Engineering and Science

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Abstract

Needle roller thrust bear is small in size and of high ability in load bearing, therefore it is widely used in fields of aviation and automobile etc.  But the relation between their service life and pre-tightening torque is not very clear, so the using design of the bear depends mainly on experience of engineer, because of lack of references. In the paper, the theoretical analysis on relation between torque and load is done, special wearing test instrument is developed and wearing test of thrust needle bear is conducted. Based on the results of the test, mathematical model of relation between the losing amount of pre-tightening torque and the pre-tightening torque is built, based on which use of the bear in engineering will be more reasonable, and their pre-tightening torque will be given more accurately. DOI: http://dx.doi.org/10.11591/telkomnika.v10i7.1553

Page 220 of 923 | Total Record : 9226

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