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29,734 Article Results

Hybrid enhanced ICA & KSVM based brain tumor image segmentation

10.11591/ijeecs.v14.i1.pp478-489
Thrivikram Bathini , Baswaraj Gadgay
Medical image processing is an important aspect in diagnosis and treatment strategy. The tremendous volume of medical data has accelerated the need for automated analysis of this image, more so in the case Magnetic Resonance Imaging (MRI). An improved K-means algorithm and EM algorithm have been combined in the proposed approach to produce a hybrid strategy for better clustering and segmentation using Enhanced ICA. A classifier for based on Support Vector Machine (SVM) has been formulated and employed for the classification of brain tumors in Magnetic Resonance Images (MRI). The proposed SVM classifier used a kernel in the form of Gaussian radial basis function kernel (GRB kernel) to improve the classifier performance. The performance of the classifier has been validated through expert clinical opinion and calculation of performance measures. The results amply illustrate the suitability of the proposed classifier.
Volume: 14
Issue: 1
Page: 478-489
Publish at: 2018-12-25

Collision-aware cooperative MAC protocol design for mobile ad-hoc networks

10.11591/ijeecs.v14.i1.pp455-461
Y. Neeraja , V. Sumalatha
Mobile ad hoc networks are designed to maintain communication among the independent nodes without a server or base station. High efficient MAC protocol takes a major role to maintain collision free, bandwidth efficient communication among the networked nodes. Collisions among the nodes provide considerable reduction in the performance of the network. The objective of the work is to provide collision aware cooperative MAC protocol design by modifying the backoff to a specific range. It improves the throughput and reduces delay with less collision rate. It minimizes the complexity of the problem arising in memory and processing.
Volume: 14
Issue: 1
Page: 455-461
Publish at: 2018-12-25

Wireless sensor data mining for e-commerce applications

10.11591/ijeecs.v14.i1.pp462-470
T. Sridevi , P. Mallikarjuna Rao , P.V Ramaraju
Information hiding is the most important criteria today in several sectors, due to security issues. Mostly for the security applications used in Finance & banking sectors, hiding the information about users and their transactions are necessary at present from the hackers in all high security zones. In this consequence biometrics is progressively considered as foundation component for an extensive array of personal authentication solutions, both at the national level (E.g. India UIDAI) and the smaller-scale (E.g. banking ATMs, school lunch payment systems). Biometric fraud is also an area of increasing concern, as the number of deployed biometric systems increases and fraudsters become aware of the potential to compromise them. Organizations are increasingly deploying process and technology solutions to stay one step ahead. At present Bankers are using different single Biometric Modalities for different services. All Biometric features are not suitable, for all services because of various artifacts while extracting features from the sensors due to background noise, lighting conditions, ease of access etc. This paper proposes a multi model system that will show a onetime single solution to meet all their security problems. This paper particularly handles how to incorporate cryptography and steganography in biometric applications.
Volume: 14
Issue: 1
Page: 462-470
Publish at: 2018-12-25

Improving Hierarchical Decision Approach for Single Image Classification of Pap Smear

10.11591/ijece.v8i6.pp5415-5424
Dwiza Riana , Yudi Ramdhani , Rizki Tri Prasetio , Achmad Nizar Hidayanto
The single image classification of Pap smears is an important part of the early detection of cervical cancer through Pap smear tests. Unfortunately, most classification processes still require accuracy enhancement, especially to complete the classification in seven classes and to get a qualified classification process. In addition, attempts to improve the single image classification of Pap smears were performed to be able to distinguish normal and abnormal cells. This study proposes a better approach by providing different handling of the initial data preparation process in the form of the distribution for training data and testing data so that it resulted in a new model of Hierarchial Decision Approach (HDA) which has the higher learning rate and momentum values in the proposed new model. This study evaluated 20 different features in hierarchical decision approach model based on Neural Network (NN) and genetic algorithm method for single image classification of Pap smear which resulted in classification experiment using value learning rate of 0.3 and momentum of 0.2 and value of learning rate of 0.5 and momentum of 0.5 by generating classification of 7 classes (Normal Intermediate, Normal Colummar, Mild (Light) Dyplasia, Moderate Dyplasia, Servere Dyplasia and Carcinoma In Situ) better. The accuracy value enhancemenet were also influenced by the application of Genetic Algorithm to feature selection. Thus, from the results of model testing, it can be concluded that the Hierarchical Decision Approach (HDA) method for Pap Smear image classification can be used as a reference for initial screening process to analyze Pap Smear image classification.
Volume: 8
Issue: 6
Page: 5415-5424
Publish at: 2018-12-01

Negative Total Float to Improve a Multi-Objective Integer Non-Linear Programming for Project Scheduling Compression

10.11591/ijece.v8i6.pp5292-5302
Fachrurrazi Fachrurrazi , Abdullah Abdullah , Yuwaldi Away , Teuku Budi Aulia
This paper presents Multi-Objective Integer Non-Linear Programming (MOINLP) involving Negative Total Float (NTF) for improving the basic model of Multi-Objective Programming (MOP) in case the optimization of the additional cost for Project Scheduling Compression (PSC). Using the basic MOP to solve the more complex problems is a challenging task. We suspect that Negative Total Float (NTF) having an indication to make the basic MOP to solve the more general case, both simple and complex of PSC. The purpose of this research is identifying the conflicting objectives in PSC problem using NTF and improving MOINLP by involving the NTF parameter to solve the PSC problem. The Solver Application, which is an add-in of MS Excel, is used to perform optimization process to the model developed. The results show that NTF has an important role to identify the conflicting objectives in PSC. We define NTF is an automatic maximum value of the activity duration reduction to achieve due date of PSC. Furthermore, the use of NTF as a constraint in MOINLP can solve the more general case for both simple and complex PSC problem. Base on the condition, we state that the basic MOP is still significant to solve the PSC complex problems using MOINLP as a sophisticated MOP technique.
Volume: 8
Issue: 6
Page: 5292-5302
Publish at: 2018-12-01

A Defense-in-depth Cybersecurity for Smart Substations

10.11591/ijece.v8i6.pp4423-4431
M. N. Dazahra , F. Elmariami , A. Belfqih , J. Boukherouaa
The increase of cyber-attacks on industrial and power systems in the recent years make the cybersecurity of supervisory control and data acquisition and substation automation systemsa high important engineering issue. This paper proposes a defense in depth cybersecurity solution for smart substations in different layers of the substation automation system. In fact, it presents possible vulnerabilities in the substation automation system and propose a multiple layer solution based on best practice in cyber security such as the hardening ofdevices, whitelisting, network configuration, network segmentation, role-based account management and cyber security management and deployement.
Volume: 8
Issue: 6
Page: 4423-4431
Publish at: 2018-12-01

FPGA Realizations of Walsh Transforms for Different Transform and Word lengths into Xilinx and Altera Chips

10.11591/ijece.v8i6.pp4981-4994
Zulfikar Zulfikar , Shuja A. Abbasi , Abdulrahman M. Alamoud
This paper presents FPGA realizations of Walsh transforms. The realizations are targetted for the system of arbitrary waveform generation, addition/ subtraction, multiplication, and processing of several signals based on Walsh transforms which is defined in term products of Rademacher functions. Input signals are passing through the system in serial, the output either signals or coefficients are also passing out in serial. To minimize the area utilization when the systems are realized in FPGA chips, the word lengths of every processing step have been designed carefully. Based on this, FPGA realizations of those various applications into Xilinx and Altera chips have been done. In Xilinx realizations, Xilinx ISE was used to display the results and to extract some critical parameters such as speed and static power. Meanwhile, the realizations into Altera chips have been conducted using Quartus. Comparisons of speed and power among Xilinx and Altera chip realizations are presented here even though this is not an apple to apple comparison. Finally, it can be concluded that Walsh transforms can be realized not only for the applications that have been done here, but it is potential can be used for other applications.
Volume: 8
Issue: 6
Page: 4981-4994
Publish at: 2018-12-01

Augmented Reality Design of Indonesia Fruit Recognition

10.11591/ijece.v8i6.pp4654-4662
Dewi Agushinta R. , Ihsan Jatnika , Henny Medyawati , Hustinawaty Hustinawaty
Augmented Reality (AR) is one of the popular technologies nowadays. Along with the technological advances, Augmented Reality is an effort to combine the real world and virtual worlds created through computers so that the boundary between the two becomes very thin because Augmented Reality allows users to interact in real-time with the system. Augmented Reality can be applied in various fields according to the needs of each user. One application is on Android-based mobile hardware applications. This research developed the Augmented Reality battle with some of the features more interactive, interesting and clearer information to facilitate the user in its operation. This Augmented Reality is applied to the Android mobile device with the name of FruitGarden. This paper presented of designing Augmented Reality for recognizing the fruit of Indonesia archipelago which will give a different view of performing the fruit image and information.
Volume: 8
Issue: 6
Page: 4654-4662
Publish at: 2018-12-01

Controller Design of UPQC for Enhancing Power Quality in Distribution System

10.11591/ijpeds.v9.i4.pp1591-1606
Kittaya Somsai
This paper presents the procedure of PI controller design of Unified Power Quality Conditioner (UPQC) for improving power quality in the distribution system. A mathematical model of the distribution system with the UPQC is thoroughly explained in this paper. The mathematical model that is founded has been used for designing the PI controller. In order to investigate the dynamic performance and design the controller, linear approximation technique is used. Linearization of the systems that is around the operating point provides a set of linear equations, and then multi-input multi-output (MIMO) transfer functions of the systems are obtained. Two controller design techniques are presented and compared. One is the sequential loop closure controller design with parameter tuning through the Bode diagram (SLC-BD). The other one is the controller optimization design with the genetic algorithms (CO-GA). The performances of these techniques are verified and compared by using MATLAB program. Simulation results reveal that the power quality in the distribution system can be enhanced by using UPQC with the proposed controller design.
Volume: 9
Issue: 4
Page: 1591-1606
Publish at: 2018-12-01

Energy Harvesting on Footsteps Using Piezoelectric based on Circuit LCT3588 and Boost up Converter

https://ijece.iaescore.com/index.php/IJECE/article/view/9782
Iswanto Iswanto , Slamet Suripto , Faaris Mujaahid , Karisma Trinanda Putra , Noor Pratama Apriyanto , Yosi Apriani
Piezoelectric utilization as a generator is an effort to obtain electrical energy that refers to the concept of energy harvesting referring the development of piezoelectric as a generator that converts the pressure or vibration generated from steps into electrical energy that can be used on low-power electronic devices. Because the use of piezoelectric as a generator allows the use in charging low voltage, a larger resource is required in different series. Based on the problem, an energy harvesting device and a voltage amplifier are created to increase the voltage of the pizoelectric output. An arduino microcontroller is used to control the energy harvesting device and voltage booster. It is required approximately 10 steps to charge four AA 1.2 Volt batteries and 80 steps to charge two 12 volt batteries respectively.
Volume: 8
Issue: 6
Page: 4104-4110
Publish at: 2018-12-01

Selective Harmonic Elimination of an Eleven Level Inverter Using Whale Optimization Technique

10.11591/ijpeds.v9.i4.pp1944-1951
Srikanta Kumar Dash , Byamakesh Nayak , Jiban Ballav Sahu
Reduction of total harmonic distortion in multilevel inverters is a difficult optimization problem that includes nonlinear transcendent equations having more than one local minima.This paper deals with the harmonic elimination of cascaded multilevel inverter with equal D.C. sources using a new optimization technique. The objective of this paper is to find the best combination of switching angles to minimize the lower order harmonics and the total harmonic distortion is reduced. For this purpose, a new optimization techniques i.e. whale optimization technique is considered.This algorithm is applied to an 11-level cascaded H-bridge inverter.Results shows that WOA gives better results and effectively minimizes the THD and lower order harmonics
Volume: 9
Issue: 4
Page: 1944-1951
Publish at: 2018-12-01

A Novel Design of Voltage Controlled Oscillator By using the Method of Negative Resistance

10.11591/ijece.v8i6.pp4496-4504
Ayoub Malki , Larbi El Abdellaoui , Jamal Zbitou , A. Errkik , A. Tajmouati , Mohamed Latrach
The objective of this paper is to develop a new design of a voltage controlled microwave oscillator by using the method of negative resistance in order to fabricate VCO with very good performance in terms of tuning rang, phase noise, output power and stability. The use of hybrid microwave integrated circuit technology’s (HMIC) offers a lot of advantage for our structure concerning size, cost, productivity, and Q factor. This VCO is designed at [480MHz; 1.4GHz] frequency for applications in the phase locked loop (PLL) for signal tracking, FM demodulation, frequency modulation, mobile communication, etc. The different steps of studied voltage controlled oscillator’s design are thoroughly described. Initially designed at a fixed frequency meanwhile the use of a varactor allow us to tune the frequency of the second design. It has been optimized especially regarding tuning bandwidth, power, phase noise, consumption and size of the whole circuit. The achieved results and proposed amendment are the product of theoretical study and predictive simulations with advanced design system microwave design software. A micro-strip VCO with low phase noise based on high gain ultra low noise RF transistor BFP 740 has been designed, fabricated, and characterized. The VCO delivers a sinusoidal signal at the frequency 480 MHz with tuning bandwidth 920 MHz, spectrum power of 12.62 dBm into 50 Ω load and phase noise of -108 dBc/Hz at 100 Hz offset. Measurement results and simulation are in good agreement. Circuit is designed on FR4 substrate which includes integrated resonators and passive components.
Volume: 8
Issue: 6
Page: 4496-4504
Publish at: 2018-12-01

Addressing Latency Issues in 2D to 3D Conversion: Deploying Available Synthetic Database

10.11591/ijict.v7i3.pp141-145
N. L. Manasa
Conventional 2D to 3D rendering techniques involve a sequential process of grouping of the input images based on edge information and predictive algorithms to assign depth values to pixels with same hue. The iterative calculations and volume of data under scrutiny to assign ‘real-time’ values raise latency issues and cost considerations. For commercial consumption, where speed and accuracy define the viability of a product, there is a need to reorient the approach used in the present methodologies. In predictive methodologies one of the core interests is achieving the initial approximation as close to the ‘real’ value as possible. In this work, ‘synthetic’ database is used to provide the first approximation through comparison techniques and fed to the predictive tool. It is believed that this work will provide a basis for developing an efficient 2D to 3D conversion methodology.
Volume: 7
Issue: 3
Page: 141-145
Publish at: 2018-12-01

Developing an Enhanced High-Speed Key Transmission (EHSKT) Technique to Avoid Fraud Activity in E-Commerce

10.11591/ijeecs.v12.i3.pp1187-1194
A.B. Hajira Be , R. Balasubramanian
E-commerce is an emerging and convergence of numerous main information technologies in business practices. E-commerce is an online website where the sale or buys of merchandise ordered electronically. It gives a simple approach to sell items to customers. In the applications suffers payments issues; for example, electronic transactions utilizing Visas or debit cards, net banking, PayPal or different tokens have more consistency problems and are at expanded hazard from being focused than different sites as they suffer more outcomes if there is information loss or modification. An Enhanced High-Speed Key Transmission (EHSKT) Technique is proposed for secure and efficient payment transactions and avoids fraud activity. The proposed system works based UUID (Universally Unique Identifier) to generate a unique id for payment transactions. Proposed system generates Unique id have a combination of number, alphabets, & special character to avoid fraud users. The proposed design reduces the encryption, decryption time and key complexity. Based on Experimental evaluations, proposed methodology reduces 4.73 AD (Average Delay), 23.91 EC (Energy Consumption), 0.95 ET (Encryption Time), 0.85 DT (Decryption Time) and improves 59.8% (Throughput) compared than existing methodologies.
Volume: 12
Issue: 3
Page: 1187-1194
Publish at: 2018-12-01

Orientation to Happiness as a Predictor of University Students’ Engagement

10.11591/ijere.v7i4.15446
Maria Fernanda Durón-Ramos , Fernanda García Vázquez
There is empirical evidence for a close link between positive personal components and students' engagement in academic activities. Personal well-being is a construct that can be studied from a variety of angles. Recent studies point to the relevance of orientation to happiness examining three types of well-being. The main objective of this study is to test the relationship that orientation to happiness has with university students' engagement at a public institution in northern Mexico. A stratified probabilistic sample of 266 students was used. The internal consistency of the scales was analyzed using the SPSS package and a model of structural equations in the EQS program. Results indicate is a direct and significant relationship between the orientation to happiness and the students' engagement. This supports the importance of promoting positive factors in students to improve their academic and personal development.
Volume: 7
Issue: 4
Page: 294-298
Publish at: 2018-12-01
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