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

29,734 Article Results

Classification of Macronutrient Deficiencies in Maize Plant Using Machine Learning

10.11591/ijece.v8i6.pp4197-4203
Leena N , K. K. Saju
Detection of nutritional deficiencies in plants is vital for improving crop productivity. Timely identification of nutrient deficiency through visual symptoms in the plants can help farmers take quick corrective action by appropriate nutrient management strategies. The application of computer vision and machine learning techniques offers new prospects in non-destructive field-based analysis for nutrient deficiency. Color and shape are important parameters in feature extraction. In this work, two different techniques are used for image segmentation and feature extraction to generate two different feature sets from the same image sets. These are then used for classification using different machine learning techniques. The experimental results are analyzed and compared in terms of classification accuracy to find the best algorithm for the two feature sets.
Volume: 8
Issue: 6
Page: 4197-4203
Publish at: 2018-12-01

Designing a Novel High Performance Four-to-Two Compressor Cell Based on CNTFET Technology for Low Voltages

10.11591/ijece.v8i6.pp4863-4870
Mehdi Bagherizadeh , Mona Moradi , Mostafa Torabi
Compressor cell is often placed in critical path of multiplier circuits to perform partial product summation. Therefore it plays a significant role in determining the entire performance of multiplier and digital system. Respecting to the necessity of low power design for portable electronic, designing a low power and high performance compressors seems to be a good solution to overcome of these problems for computations. In this paper a novel high performance four-to-two compressor cell is proposed using Carbon Nanotube Field Effect Transistors (CNTFETs) technology. The new cell is based on Majority Function, NOR, and NAND gates. The main advantage of proposed design in comparison with former cells is the ease of obtaining CARRY output by means of Majority function. Simulations have been done with 32nm technology node using Synopsys HSPICE software. Simulation results confirm the priority of the proposed cell compared to other state-of-the-art four-to-two compressor cells.
Volume: 8
Issue: 6
Page: 4863-4870
Publish at: 2018-12-01

Generating Non-redundant Multilevel Association Rules Using Min-max Exact Rules

10.11591/ijece.v8i6.pp4568-4576
R. Vijaya Prakash , S. S. V. N. Sarma , M. Sheshikala
Association Rule mining plays an important role in the discovery of knowledge and information. Association Rule mining discovers huge number of rules for any dataset for different support and confidence values, among this many of them are redundant, especially in the case of multi-level datasets. Mining non-redundant Association Rules in multi-level dataset is a big concern in field of Data mining. In this paper, we present a definition for redundancy and a concise representation called Reliable Exact basis for representing non-redundant Association Rules from multi-level datasets. The given non-redundant Association Rules are loss less representation for any datasets.
Volume: 8
Issue: 6
Page: 4568-4576
Publish at: 2018-12-01

Modeling and Real-Time Simulation of Induction Motor Using RT-LAB

10.11591/ijpeds.v9.i4.pp1476-1485
A. Hamed , A. Hazzab
This paper presents the modeling and real-time simulation of an induction motor. The RT- LAB simulation software enables the parallel simulation of power drives and electric circuits on clusters of a PC running QNX or RT- Linux operating systems at sample time below 10 µs. Using standard Simulink models including SimPowerSystems models, RT-LAB build computation and communication tasks are necessary to make parallel simulation of electrical systems. The code generated by the Real-Time Workshop of RT- LAB is linked to the OP5600 digital real-time simulator. A case study example of real-time simulation of an induction motor system is presented.This paper discusses methods to overcome the challenges of real-time simulation of an induction motor system synchronizing with a real-time clock.
Volume: 9
Issue: 4
Page: 1476-1485
Publish at: 2018-12-01

A Tour Towards the Various Knowledge Representation Techniques for Cognitive Hybrid Sentence Modeling and Analyzer

10.11591/ijict.v7i3.pp124-134
Poonam Tanwar , T. V. Prasad , Kamlesh Dutt
Knowledge Representation (KR) is a fascinating field across several areas of cognitive science and computer science. It is very hard to identify the requirement of a combination of many techniques and inference mechanism to achieve the accuracy for the problem domain. This research attempted to examine those techniques, and to apply them to implement a Cognitive Hybrid Sentence Modeling and Analyzer. The purpose of developing this system is to facilitate people who face the problem of using English language in daily life.
Volume: 7
Issue: 3
Page: 124-134
Publish at: 2018-12-01

Losses Computation in Reciprocating Tubular Permanent Magnet Generator with SMC Core

10.11591/ijpeds.v9.i4.pp1545-1551
Behrooz Rezaeealam
Generally, the Permanent Magnet Tubular Generators (PMTG) are employed in the free-piston generator systems. In this paper, the PMTG with the core made of Soft Magnetic Composite (SMC) is employed, and then, the PMTG with the solid SMC core has cylindrical symmetry and also the outer diameter of the machine reduces in comparison to the ones with multipart laminated steel cores in which each part is radially placed along the air-gap and there is unexploited space between them. Here, a Finite Element Method (FEM) is developed in which the reciprocating motion of the translator is considered by moving mesh techniques and moreover, the Jiles-Atherton (JA) scalar hysteresis model is incorporated in the FE model to take into account the hysteresis losses. Then, the copper and core losses are computed and the equivalent circuit of the generator is derived. The calculated losses are compared with the ones obtained from the analytical methods.
Volume: 9
Issue: 4
Page: 1545-1551
Publish at: 2018-12-01

Photovoltaic Emulator for Grid-connected Quasi-Z-Sorce Inverter

10.11591/ijpeds.v9.i4.pp1976-1988
Zulhani Rasin , Muhammed Fazlur Rahman , Maaspaliza Azri , Md Hairul Nizam Talib , Auzani Jidin
The performance of PV panel is very much dependent on the amount of sun light as well as the temperature of the surrounding environment which normally hard to be predicted. The use of PV emulator in the investigation of solar inverter especially at a lab scale platform helps to mitigate the inconsistency factors due to this uncontrollable variation. This work discussed on the design and development of a PV emulator for the grid-connected quasi-Z-source inverter which has different topology and control method compared to the conventional voltage source inverter. The I-V characteristics of the PV panel is modelled from the commercially available product and through circuit analysis the relation between capacitor voltage control and the PV terminal voltage is established, thus realizing the MPPT operation. Results from both simulation and experimental verification demonstrated that the PV emulator successfully able to produce power for the inverter according to the requirement.
Volume: 9
Issue: 4
Page: 1976-1988
Publish at: 2018-12-01

Improved Chicken Swarm Optimization Algorithm to Solve the Travelling Salesman Problem

10.11591/ijeecs.v12.i3.pp1054-1062
Fayçal Chebihi , Mohammed essaid Riffi , Amine Agharghor , Soukaina Cherif Bourki Semlali , Abdelfattah Haily
This paper proposes a novel discrete bio-inspired chicken swarm optimization algorithm (CSO) to solve the problem of the traveling salesman problem (TSP) which is one of the most known problems used to evaluate the performance of the new metaheuristics. This problem is solved by applying a local search method 2-opt in order to improve the quality of the solutions. The DCSO as a swarm system of the algorithm increases the level of diversification, in the same way the hierarchical order of the chicken swarm and the behaviors of chickens increase the level of intensification. In this contribution, we redefined the basic different operators and operations of the CSO algorithm. The performance of the algorithm is tested on a symmetric TSP benchmark dataset from TSPLIB library. Therefore, the algorithm provides good results in terms of both optimization accuracy and robustness comparing to other metaheuristics.
Volume: 12
Issue: 3
Page: 1054-1062
Publish at: 2018-12-01

Control of Single Stage Grid Tied Photovoltaic Inverter Using Incremental Conductance Method

10.11591/ijpeds.v9.i4.pp1702-1708
K. Rajasekhara Reddy , V. Nagabhaskar Reddy , M. Vijaya Kumar
In this investigation, a study on grid-connected Photovoltaic (PV) system with single stage power conversion (SSPC) is proposed. Double Stage Power Conversion (DSPC) topology contains two power conversion stages namely DC-DC conversion and DC-AC conversion, but the SSPC system converts DC power to high-quality AC power supply for grid connected PV system. The SSPC system has several advantages over DSPC, such as better use of the PV arrays, higher efficiency, low cost and compact size. Present work proposes a Sinusoidal Pulse Width Modulation (SPWM) along with incremental conductance Maximum Power Point Tracking (IC-MPPT) for inverter switching. The PV voltage and Grid Voltages verifies under normal and change of atmospheric conditions using MATLAB / SIMULINK.
Volume: 9
Issue: 4
Page: 1702-1708
Publish at: 2018-12-01

A Generalized Parameter Tuning Method of Proportional-Resonant Controllers for Dynamic Voltage Restorers

10.11591/ijpeds.v9.i4.pp1709-1717
Phuong Vu , Ngoc Dinh , Nam Hoang , Quan Nguyen , Dich Nguyen , Minh Tran
Temporary voltage swells and sags appear with high frequency in electric power systems, and they significantly affect sensitive loads such as industrial manufacturing or communication devices. This paper presents a strategy to design proportional-resonant controllers for three full-bridge voltage-source converters with a common DC-link in dynamic voltage restorer systems. The proposed controllers allow the system to quickly overcome temporary unbalanced voltage sags. Simulation results carried out in MATLAB/Simulink and experimental results implemented in a Typhoon HIL402 device demonstrate the ability of the proposed design method. The results show that the system with the proposed controllers can ride-through single-phase or double-phase voltage sags up to 55% and three-phase voltage sags up to 70% in a duration less than one grid-voltage cycle.
Volume: 9
Issue: 4
Page: 1709-1717
Publish at: 2018-12-01

Implementation Optimal Location and Sizing of UPFC on Iraqi Power System Grid (132 kV) Using Genetic Algorithm

10.11591/ijpeds.v9.i4.pp1607-1615
Ghassan Abdullah Salman , Mohammed Hasan Ali , Ali Najim Abdullah
Electric power systems required efficient processors and intelligent methods for sustainability therefore, in this paper used Flexible AC Transmission System (FACTS) device specifically Unified Power Flow Controller (UPFC) because of its useful properties on series and shunt devices and used Genetic Algorithm (GA) to determine the optimal location and values of UPFC to achieve the following objectives: improve voltages profile, reduce power losses, treatment of power flow in overloaded transmission lines and reduce power generation. Consequently, all of these goals led to a reduction in the total cost of the power system. GA was applied to an Iraqi local power grid system (Diyala 132 kV) to find the optimal values and locations of UPFC for the purpose of achieving the objectives mentioned above using the MATLAB program. The simulation results showed the effectiveness of GA to calculate the optimum values and locations of UPFC and promising results were obtained for the Diyala power network (132 kV) with regard to the desired objectives.
Volume: 9
Issue: 4
Page: 1607-1615
Publish at: 2018-12-01

Design of shunt hybrid active power filter (SHAPF) to reduce harmonics in AC side due to Non-linear loads

10.11591/ijpeds.v9.i4.pp1926-1936
Madhu B R , Dinesh MN , Ravitheja BM
The quality of power is a major concern because of harmonics in the lines due to various sources. Passive filters have been used to eliminate the specific harmonics. In this paper shunt hybrid active power filter which consists of shunt active filter and shunt passive filter is designed to reduce harmonics in source   side for non linear loads. The shunt passive filter includes a tuned RLC circuit that behaves like a band-pass filter for a particular harmonic content. The shunt active filter is a VSI that produces reverse harmonic current based on Clarke’s transformation. This paper presents the control strategy by implementing instantaneous reactive power theory to design Shunt Hybrid Active Filter (SHAPF) for a non linear load. The proposed control technique is simulated using MATLAB SIMULINK, Results prove there is considerable reduction in THD of source current from 30.35% to 3.25% with the proposed controller on   shunt hybrid active power filter.   The performance of SHAPF is better than Passive and Shunt Active Power Filters. 
Volume: 9
Issue: 4
Page: 1926-1936
Publish at: 2018-12-01

Metrics and Benchmarks for Empirical and Comprehension Focused Visualization Research in the Sales Domain

10.11591/ijeecs.v12.i3.pp1340-1348
Loo Yew Jie , Doris Hooi-Ten Wong , Zarina Mat Zain , Nilam Nur Amir Sjarif , Roslina Ibrahim , Nurazean Maarop
Data visualization is an effort which aims to communicate data effectively and clearly to the audience through graphicalrepresentation. Data visualization efforts must be coordinated with an understanding into the Cognitive Learning Theory (CLT). In the sales domain, sales data visualization are made possible with the available Business Intelligence (BI) tools such as Microsoft Power BI, Tableau, Plotly, and others. These tools allow seamless interaction for the top management as well as the sales force with regard to the data. Sales data visualization comes with an array of advantages such as self-service analysis by business users, rapidly adapt to changing business conditions, and enable continuous on-demand reporting among others. The advantages of sales data visualization also comes with the challenges such as difficulty in identifying visual noise, high rate of image change, and high performance requirements. In an effort to reduce cognitive activity that does not enhance learning, sales visualization dashboard must be designed in a way that is neithertoo simplistic nor too complex to ensure that the Intrinsic Cognitive Load (ICL), Extrinsic Cognitive Load (ECL), and Germane Cognitive Load (GCL) are in sync with the audience. With the combination of sales data visualization and CLT, understanding complex sales details quickly is made possible by not only the top management of the organization, but also the sales force of the organization.
Volume: 12
Issue: 3
Page: 1340-1348
Publish at: 2018-12-01

A Survey on Multimedia Content Protection Mechanisms

10.11591/ijece.v8i6.pp4204-4211
Gottumukkala Hima Bindu , Chinta Anuradha , Patnala S. R. Chandra Murthy
Cloud computing has emerged to influence multimedia content providers like Disney to render their multimedia services. When content providers use the public cloud, there are chances to have pirated copies further leading to a loss in revenues. At the same time, technological advancements regarding content recording and hosting made it easy to duplicate genuine multimedia objects. This problem has increased with increased usage of a cloud platform for rendering multimedia content to users across the globe. Therefore it is essential to have mechanisms to detect video copy, discover copyright infringement of multimedia content and protect the interests of genuine content providers. It is a challenging and computationally expensive problem to be addressed considering the exponential growth of multimedia content over the internet. In this paper, we surveyed multimedia-content protection mechanisms which throw light on different kinds of multimedia, multimedia content modification methods, and techniques to protect intellectual property from abuse and copyright infringement. It also focuses on challenges involved in protecting multimedia content and the research gaps in the area of cloud-based multimedia content protection.
Volume: 8
Issue: 6
Page: 4204-4211
Publish at: 2018-12-01

Comparative Study of Controllers for an Isolated Full Bridge Boost Converter Topology in Fuel Cell Applications

10.11591/ijpeds.v9.i4.pp1644-1656
S. Vijaya Madhavi , G. Tulasi Ram Das
Now a day’s renewable energy sources became an interesting area of research of which fuel cells are emerged as an alternative source for producing electricity to meet the energy crisis. This led to a research on power conditioning systems through which fuel cell is interfaced to the utility. Of the different converter topologies Isolated full bridge boost converter (IFBC) topology is most suitable for fuel cell applications. In this paper a Predictive Switching Modulator (PSM) Control is proposed for the converter topology and its performance is compared with Linear Peak Current Mode control (LPCM), Non-Linear Carrier Control (NLC).
Volume: 9
Issue: 4
Page: 1644-1656
Publish at: 2018-12-01
Show 1355 of 1983

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