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28,428 Article Results

Embedded Fuzzy Based Boiler Control

10.11591/ijra.v5i2.pp105-108
Celin S
Boiler control in a power station is a very important criteria in regulation of uninterrupted electricity. In existing power plants, the control of its features and parameters are done by PI and PD controllers. The parameters that control the regulation of boiler conduction are drum level, steam flow, feed water flow, steam temperature and light intensity. It is necessary to produce the steam required to run the generator. When the load in the generator changes, there must be corresponding change in the steam volume. This may cause adverse effect in the boiler. In order to avoid the effect in the boiler, the parameters mentioned above must be maintained constant, which is attained by regulating the corresponding valves. This project work has a feasibility of using fuzzy logic controllers in the place of conventional controllers is done by using embedded system. It is found that the rule based fuzzy logic technique can be implemented by stringent operating conditions. 
Volume: 5
Issue: 2
Page: 105-108
Publish at: 2016-06-01

The Implementation of Cooperative Learning Model ‘Number Heads Together (NHT)’ in Improving the Students’ Ability in Reading Comprehension

10.11591/ijere.v5i2.4536
Mayong Maman , Andi Aryani Rajab
The study aimed at describing the implementation of cooperative learning model of (NHT) at student of SMPN 2 Maros. The method used was a classroom action research in two cycles. Data were collected using the test for the quantitative and non-test for the qualitative by employing observation, field note, student’s workbook, student’s reflection sheet, and test of learning outcomes. The improvement of competence on cycle I was 44% that was categorized as extremely good, 56% were categorized as good, and no student was categorized as low. Cycle II, 84% were classified as extremely good, 16% were grouped as good, and no one was classified as low.
Volume: 5
Issue: 2
Page: 174-180
Publish at: 2016-06-01

Card Games and Algebra Tic Tacmatics on Achievement of Junior Secondary II Students in Algebraic Expressions

10.11591/ijere.v5i2.4527
Okpube Nnaemeka Michael , N. M. Anugwo
This study investigated the Card Games and Algebra tic-Tacmatics on Junior Secondary II Students’ Achievement in Algebraic Expressions. Three research questions and three null hypotheses guided the study. The study adopted the pre-test, post-test control group design. A total of two hundred and forty (240) Junior Secondary School II students were used as sample for this study. The experimental group was taught using games while the control group was taught using the conventional (lecture) method. Algebraic Achievement Test (AAT) was used to collect data for this study. AAT was validated by three experts in mathematics education and measurement and evaluation respectively. The reliability index of AAT was 0.79. Mean and standard deviation were used to answer the research questions while ANCOVA was used to test the hypotheses at 0.05 level of significance. The findings of the study showed among others that there was a significant difference between students taught algebraic expressions with games and those taught without games, there was also a significant difference between the achievement of males and females taught algebraic expressions with games and those taught without games in favour of the males.
Volume: 5
Issue: 2
Page: 93-100
Publish at: 2016-06-01

A Hyperlink based Graphical User Interface of Knowledge Management System for Broiler Production

10.11591/ijeecs.v2.i3.pp668-674
Yusra Fernando , Kudang Boro Seminar , Irman Hermadi , Rudi Afnan
 The level of consumption of animal protein in Indonesia has been increasing. Unfortunately, this increase has not been balanced by the adequate rise stock production.  The use of closed house system for broiler production is very potential to contribute the increase of protein source. The purpose of this research is to build a knowledge management system broiler production management closed house system. Web-based system developed using PHP programming language, and Protégé as processing knowledge representation. This research has developed the concept of knowledge management system with ontology model of semantic network, among the results of this research is a conceptual model, knowledge maps, and prototype production management knowledge management website broiler closed house system. Knowledge management system is equipped with recording system applications. This application is useful to be able to see results in the production of a period of production. The prototype knowledge management website provides links consultancy services for farmers who want to ask about production management. The concept of knowledge management systems can be used as a basis for building a semantic website that can model the process and rules management broiler production closed house system.
Volume: 2
Issue: 3
Page: 668-674
Publish at: 2016-06-01

Optimal Capacitors in Radial Distribution System for Loss Reduction and Voltage Enhancement

10.11591/ijeecs.v2.i3.pp566-582
S. Bhongade , Sachin Arya
The work presented in this paper is carried out with the objective of identifying the optimal location and size (Kvar ratings) of shunt capacitors to be placed in radial distribution system, to have overall economy considering the saving due to energy loss minimization. To achieve this objective, a two stage methodology is adopted in this paper. In the first stage, the base case load flow of uncompensated distribution system is carried out. On the basis of base case load flow solution, Nominal voltage magnitudes and Loss Sensitivity Factors are calculated and the weak buses are selected for capacitor placement.In the second stage, Particle Swarm Optimization (PSO) algorithm is used to identify the size of the capacitors to be placed at the selected buses for minimizing the power loss. The developed algorithm is tested for 10-bus, 34-bus and 85-bus Radial Distribution Systems. The results show that there has been an enhancement in voltage profile and reduction in power loss thus resulting in much annual saving.
Volume: 2
Issue: 3
Page: 566-582
Publish at: 2016-06-01

Photovoltaic Array Maximum Power Point Tracking Based on Improved Method

10.12928/telkomnika.v14i2.2958
Jia; University of Mining and Technology of China Cunliang , Yanxiong; University of Mining and Technology of China Wang , Zerong; No.716 Research Institute Lianyungang Wang
At present, a good deal of methods for the Maximum Power Point Tracking (MPPT) has been used in engineering applications. However, Matlab simulation proved that they were difficult to harmonize the stability and speed ability of system. In addition, in order to maximize the use of PV panels ‘power, the paper focused on aneonatalalgorithm for Maximum Power Point Tracking (MPPT). Based on the algorithm, this paper designed an improved and feasible variable step perturbation and observation method which well alleviated the conflict that the maximum power point tracking could not take into account the stability and speed of response efficiently.
Volume: 14
Issue: 2
Page: 404-410
Publish at: 2016-06-01

Survey: Models and Prototypes of Schema Matching

10.11591/ijece.v6i3.pp1011-1022
Edhy Sutanta , Retantyo Wardoyo , Khabib Mustofa , Edi Winarko
Schema matching is critical problem within many applications to integration of data/information, to achieve interoperability, and other cases caused by schematic heterogeneity. Schema matching evolved from manual way on a specific domain, leading to a new models and methods that are semi-automatic and more general, so it is able to effectively direct the user within generate a mapping among elements of two the schema or ontologies better. This paper is a summary of literature review on models and prototypes on schema matching within the last 25 years to describe the progress of and research chalenge and opportunities on a new models, methods, and/or prototypes.
Volume: 6
Issue: 3
Page: 1011-1022
Publish at: 2016-06-01

Performance Study of Soft Local Binary Pattern over Local Binary Pattern under Noisy Images

10.11591/ijece.v6i3.pp1161-1167
Sabina Yasmin , Md. Masud Rana
In this paper, the performance of soft local binary pattern (SLBP) method has been investigated with edge detection techniques for face recognition in case of noisy condition. Various edge detection techniques such as Canny, Robert and Log methods have been used with SLBP for recognizing faces. The results obtained using SLBP with various edge detection for noisy condition based on image quality measurement shows better recognition rate compared to the results obtained using local binary pattern (LBP). Simplified edge detection methods simplify the images as a result SLBP with edge detection requires less computation time compared with edge detection of LBP.
Volume: 6
Issue: 3
Page: 1161-1167
Publish at: 2016-06-01

Tip Speed Ratio Based MPPT Algorithm and Improved Field Oriented Control for Extracting Optimal Real power and Independent Reactive Power Control for Grid Connected Doubly Fed Induction Generator

10.11591/ijece.v6i3.pp1319-1331
D.V.N. Ananth , Gundavarapu Venkata Nagesh Kumar
Doubly Fed Induction Generator (DFIG) needs to get adopted to change in wind speeds with sudden change in reactive power or grid terminal voltage as it is required for maintaining synchronism and stability as per modern grid rules. This paper proposes a controller for DFIG converters and optimal tip speed ratio based maximum power point tracking (MPPT) for turbine to maintain equilibrium in rotor speed, generator torque, and stator and rotor voltages and also to meet desired reference real power during the turbulences like sudden change in reactive power or voltage with concurrently changing wind speed. The performance of DFIG is compared when there is change in wind speed only, changes in reactive power and variation in grid voltage along with variation in wind speed.
Volume: 6
Issue: 3
Page: 1319-1331
Publish at: 2016-06-01

Efficient D2D Discovery Scheme for Channel Measurement of Interference Alignment

10.12928/telkomnika.v14i2.3148
Zhanjun; Chongqing University of Posts and Telecommunications Liu , Yunpeng; Chongqing University of Posts and Telecommunications Li , Zhonghua; Chongqing University of Posts and Telecommunications Yu , Yue; Chongqing University of Posts and Telecommunications Shen
Device-to-device (D2D) communications have the potential to improve spectrum efficiency and link capacity by allowing nearby devices to communicate directly with each other on the licensed frequency bands. Hence, co-channel interference (CCI) among D2D users are major issues to be solved when they are utilizing the same frequency bands. Consequently, interference alignment (IA) as an effective interference management approach has been implemented to the D2D communications for the frequency sharing. However, the measurement of channel state information (CSI) between transmitter and receiver of a D2D pair and cross-channel state information (C-CSI) among D2D pairs are the major issues that need to be resolved for the implementation of IA from theory to practical. Therefore, in this paper, we propose an effective D2D discovery scheme to overcome this problem, which can measure the CSI and C-CSI based on the transmission of discovery messages. Simulation results show that, under perfect conditions, even though the proposed D2D discovery scheme increases the needed time slots to establish D2D communications compared with the conventional D2D discovery without considering IA by 6.2%, it increases the throughput up to 50% than the conventional D2D communications without considering IA, i.e., it improves the spectrum efficiency. 
Volume: 14
Issue: 2
Page: 548-554
Publish at: 2016-06-01

Dithering Analysis in an Orthogonal Frequency Division Multiplexing-Radio over Fiber Link

10.11591/ijece.v6i3.pp1112-1121
Fakhriy Hario P , Adhi Susanto , I Wayan Mustika , Sevia M Idrus , Sholeh Hadi P
Nonlinearity is one major problem broadband communication faced on utilizing the high capacity of optical fibers. That is due to scattering  phenomenon, which results in the deviations of wavelengths and energies. The dithering method is applied in the attempt to reduce those scatterings. In this paper, we propose the performance of a dithering technique based new system OFDM-RoF using two modulator scheme and coherent detection to alleviate the characteristics nonlinearity applied on the system. The dithering technique inputs signal externally to the signal processing systems to eliminate the effects of nonlinearity. Here, we report the performance of a dithering technique based on the OFDM-RoF, the results our experiment showed that the applied dithering with 16 QAM modulation can make the system more reliable and increases  the power level 1.55% with 193.1 THz, 2% with  100 THz and 1.99% ~ 200 THz, the best condition are with fd < fc. However, all condition close proximity in the parameters OLP (optical launch power), BER and SER measurement. The result demonstrated a high efficiency and good power in which the OLP operated 6.396 dBm / 4.361 E-3 W~fd 200 THz, 3.578 dBm / 2.279 E-3 W~fd 193.1 THz and 6.420 dBm / 4.3384 E-3 W~100 THz. The best BER value is achieved at 0.33 and SER 0.78 at 5 km~fd 100 THz, 0.33 and 0.768 for 10 km~fd 193.1 THz, 0.478 and 0.92 for 50 km~fd 193.1 THz.
Volume: 6
Issue: 3
Page: 1112-1121
Publish at: 2016-06-01

Breakdowns' Diagnosis of A New Character Three-Phase High Voltage Power Supply for Industrial Microwave Generators with N=2 Magnetrons per Phase

10.11591/ijece.v6i3.pp1248-1259
R. Batit , M. Chraygane , M. Ferfra , M. Fadel , A. Dsoul , B. Bahani
This paper treats the modelisation of a new three phase character high voltage supply (HV) for industrial microwave generators with N=2 magnetrons per phase. This alimentation is based on the presentation of an equivalent p circuit model of a newly dimensioned high voltage transformer. Each phase of the three phase system supplies two parallel cell voltage doublers and current stabilizer. Each of these cells in turn supplies one magnetron 800Watts / 2.45GHz. This power supply is a star connection of three identical models of the single-phase power for N=2 magnetrons. The simulation under EMTP (Electro Magnetic Transients Program) in nominal conditions allows concluding that theoretical results are adjacent to the experimental measurements. Furthermore, a failure study of six magnetron of the microwave generator is also processed. The results permit to observe that the interaction between magnetrons dosn’t influence the nominal operation of the system.
Volume: 6
Issue: 3
Page: 1248-1259
Publish at: 2016-06-01

Cloud Security in Crypt Database Server Using Fine Grained Access Control

10.11591/ijece.v6i3.pp915-924
Krishna Keerthi Chennam , M. Akka Lakshmi
Information sharing in the cloud, powered by good patterns in cloud technology, is rising as a guaranteeing procedure for permitting users to advantageously access information. However, the growing number of enterprises and customers who stores their information in cloud servers is progressively challenging users’ privacy and the security of information. This paper concentrates on providing a dependable and secure cloud information sharing services that permits users dynamic access to their information. In order to achieve this, propose an effective, adaptable and flexible privacy preserving information policy with semantic security, by using Cipher text Policy Element Based Encryption (CP-EBE) consolidated with Character Based Encryption (CBE) systems. To ensure strong information sharing security, the policy succeeds in protecting the privacy of cloud users and supports efficient and secure dynamic operations, but not constrained to, file creation, user revocation. Security analysis demonstrates that the proposed policy is secure under the generic bi- linear group model in the random oracle model and enforces fine-grained access control, full collusion resistance and retrogressive secrecy. Furthermore, performance analysis and experimental results demonstrate that the overheads are as light as possible.
Volume: 6
Issue: 3
Page: 915-924
Publish at: 2016-06-01

Exploration of Corpus Augmentation Approach for English-Hindi Bidirectional Statistical Machine Translation System

10.11591/ijece.v6i3.pp1059-1071
K. Jaya , Deepa Gupta
Even though lot of Statistical Machine Translation(SMT) research work is happening for English-Hindi language pair, there is no effort done to standardize the dataset. Each of the research work uses different dataset, different parameters and different number of sentences during various phases of translation resulting in varied translation output. So comparing  these models, understand the result of these models, to get insight into corpus behavior for these models, regenerating the result of these research work  becomes tedious. This necessitates the need for standardization of dataset and to identify the common parameter for the development of model.  The main contribution of this paper is to discuss an approach to standardize the dataset and to identify the best parameter which in combination gives best performance. It also investigates a novel corpus augmentation approach to improve the translation quality of English-Hindi bidirectional statistical machine translation system. This model works well for the scarce resource without incorporating the external parallel data corpus of the underlying language.  This experiment is carried out using Open Source phrase-based toolkit Moses. Indian Languages Corpora Initiative (ILCI) Hindi-English tourism corpus is used.  With limited dataset, considerable improvement is achieved using the corpus augmentation approach for the English-Hindi bidirectional SMT system.
Volume: 6
Issue: 3
Page: 1059-1071
Publish at: 2016-06-01

FPF: Fraud Proof Framework for Electronic Voting System

10.11591/ijece.v6i3.pp1197-1204
Innocent Kabandana , A.N. Nanda Kumar
In a democratic process voting plays a vital role in selection of policy as well as candidates. Voting though gives the freedom to voter to cast his opinion it is not free fraudulent. In order to have secure voting and convey the opinion of authorized voter in this paper we have presented a java based framework for fraud proof electronic voting system. In this framework we ensure that only the authorized voter is permitted to cast his vote and mitigate illegal voters cast votes on faking or pretending to be someone else. Proposed FPF provides a multi-level of authentication mechanism to validate the voter. The proposed system is tested for efficiency and robustness in comparing it with the existing system and is found to be efficient through comparative analysis. At present FPF is successful in mitigating the unauthorized voting further enhancement in the electronic voting system is being carried out as future work.
Volume: 6
Issue: 3
Page: 1197-1204
Publish at: 2016-06-01
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