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28,910 Article Results

Agricultural Management through Wireless Sensors and Internet of Things

10.11591/ijece.v7i6.pp3492-3499
Sridevi Navulur , A. S. C. S. Sastry , M. N. Giri Prasad
Agriculture plays a significant role in most countries and there is an enoromous need for this industry to become “Smart”. The Industry is now moving towards agricultural modernization by using modern smart technologies to find solutions for effective utilization of scarce resources there by meeting the ever increasing consumtion needs of global population. With the advent of Internet of Things and Digital transformation of rural areas, these technologies can be leveraged to remotely monitor soil moisture, crop growth and take preventive measures to detect crop damages and threats. Utilize artificial intelligence based analytics to quickly analyze operational data combined with 3rd party information, such as weather services, expert advises etc., to provide new insights and improved decision making there by enabling farmers to perform “Smart Agriculture”. Remote management of agricultural activities and their automation using new technologies is the area of focus for this research activity. A solar powered remote management and automation system for agricultural activities through wireless sensors and Internet of Things comprising, a hardware platform based on Raspberry Pi Micro controller configured to connect with a user device and accessed through the internet network. The data collection unit comprises a set of wireless sensors for sensing agricultural activities and collecting data related to agricultural parameters; the base station unit comprising: a data logger; a server; and a software application for processing, collecting, and sending the data to the user device. The user device ex: mobile, tablet etc. can be connected to an internet network, whereby an application platform (mobile-app) installed in the user device facilitates in displaying a list of wireless sensor collected data using Internet of Things and a set of power buttons. This paper is a study and proposal paper which discusses the factors and studies that lead towards this patent pending invention, AGRIPI.
Volume: 7
Issue: 6
Page: 3492-3499
Publish at: 2017-12-01

QoS based Admission Control using Multipath Scheduler for IP over Satellite Networks

10.11591/ijece.v7i6.pp2958-2969
Lukman Audah , Zhili Sun , Haitham Cruickshank
This paper presents a novel scheduling algorithm to support quality of service (QoS) for multiservice applications over integrated satellite and terrestrial networks using admission control system with multipath selection capabilities. The algorithm exploits the multipath routing paradigm over LEO and GEO satellites constellation in order to achieve optimum end-to-end QoS of the client-server Internet architecture for HTTP web service, file transfer, video streaming and VoIP applications. The proposed multipath scheduler over the satellite networks advocates load balancing technique based on optimum time-bandwidth in order to accommodate the burst of application traffics. The method tries to balance the bandwidth load and queue length on each link over satellite in order to fulfil the optimum QoS level for each traffic type. Each connection of a traffic type will be routed over a link with the least bandwidth load and queue length at current time in order to avoid congestion state. The multipath routing scheduling decision is based on per connection granularity so that packet reordering at the receiver side could be avoided. The performance evaluation of IP over satellites has been carried out using multiple connections, different file sizes and bit-error-rate (BER) variations to measure the packet delay, loss ratio and throughput.
Volume: 7
Issue: 6
Page: 2958-2969
Publish at: 2017-12-01

Modeling and Execution the Control Strategy for the Three-Level Rectifier Based on Voltage Oriented Control

10.11591/ijpeds.v8.i4.pp1603-1611
K. Y. Ahmed , N. Z. Yahaya , K. Ramani , V.S. Asirvadam
In the recent years, three-level rectifier becomes an attractive rectifier replaced the two-level rectifiers. This rectifier provides many advantages, such as sinusoidal input current which contains low harmonics, unity power factor, bi-directional power flow, low voltage and switching loss for each switch. This paper presents a modelling and execution of the three-level rectifier for improvement of power quality under different loading based on voltage oriented control. The mathematical model and the control design were presented in this paper for the current inner loop and voltage outer loop, respectively. In order to evaluate the operation of the three-level rectifier under different conditions, the model was simulated by using MATLAB/Simulink. The experiment has been used to confirm the operation of the rectifier and its controller. The simulation and experimental results show that the excellent performance under steady-state and dynamic load variations was achieved; the unity power factor and pure sinusoidal in the grid side has also been accomplished.
Volume: 8
Issue: 4
Page: 1603-1611
Publish at: 2017-12-01

Analysis of Electric Field and Current Density on XLPE Insulator

10.11591/ijece.v7i6.pp3095-3104
M. H. M. Sharif , N. A. M. Jamail , N. A. Othman , M. S. Kamarudin
Good condition and size of the insulator are important to ensure the excellent electric field and current density performance because of aging and degradation HVDC cable problem. At present, the existing insulator which is XLPE insulator that had been used does not meet the capabilities criteria of HVDC cable due to the problem in terms of the condition of the insulator which is the presence of a void in the insulator. A research had been made with Quickfield Software to calculate the electric field and current density in the XLPE insulator of HVDC cable. A void is created in the XLPE insulator by using Quickfield Software by varying diameter of void and distance of void from conductor. XLPE insulator is taken as main research object. The results show that largest diameter of void and nearest distance of void from conductor distorts highest electric field and lowest current density. Therefore, it is important to study both electric field and current density to ensure good capabilities and safety of HVDC cable.
Volume: 7
Issue: 6
Page: 3095-3104
Publish at: 2017-12-01

A Review of Social Media: In Future

10.11591/ijeecs.v8.i3.pp670-673
Sheth Tarik Mahendra Kumar
Most recent couple of years a few new systems administration locales wound up plainly famous (WhatsApp, Google Plus, Instagram), the utilization base developed significantly, and Facebook purchased over some of its opposition. The development of online networking alongside the fast development of advanced mobile phone use has likewise had an incredible effect on different features of our lives. This period additionally observed an extraordinary measure of overviews being led on the development of SNS, how individuals and organizations utilize them, and what are the effects caused by this media. In this paper, we introduce and break down the study comes about, and the effect it has caused on the organizations and society on the loose. We likewise concentrate on a portion of the particular sections of the general public while breaking down the effect. Further, we likewise have talked about the eventual fate of long range informal communication, how the advantages can be used for the improvement of the group, including training field, and furthermore the significance of taking essential care in order to keep away from the genuine negative effects of SNS. 
Volume: 8
Issue: 3
Page: 670-673
Publish at: 2017-12-01

Comparisional Investigation of Load Dispatch Solutions with TLBO

10.11591/ijece.v7i6.pp3246-3253
DSNM Rao , Niranjan Kumar
This paper discusses economic load dispatch Problem is modeled with non-convex functions. These are problem are not solvable using a convex optimization techniques. So there is a need for using a heuristic method. Among such methods Teaching and Learning Based Optimization (TLBO) is a recently known algorithm and showed promising results. This paper utilized this algorithm to provide load dispatch solutions. Comparisons of this solution with other standard algorithms like Particle Swarm Optimization (PSO), Differential Evolution (DE) and Harmony Search Algorithm (HSA). This proposed algorithm is applied to solve the load dispatch problem for 6 unit and 10 unit test systems along with the other algorithms. This comparisional investigation explored various merits of TLBO with respect to PSO, DE, and HAS in the field economic load dispatch.
Volume: 7
Issue: 6
Page: 3246-3253
Publish at: 2017-12-01

Modified Projective Synchronization of Chaotic Systems with Noise Disturbance, an Active Nonlinear Control Method

10.11591/ijece.v7i6.pp3436-3445
Hamed Tirandaz , Mohsen Ahmadnia , Hamid Reza Tavakoli
The synchronization problem of chaotic systems using active modified projective nonlinear control method is rarely addressed. Thus the concentration of this study is to derive a modified projective controller to synchronize the two chaotic systems. Since, the parameter of the master and follower systems are considered known, so active methods are employed instead of adaptive methods. The validity of the proposed controller is studied by means of the Lyapunov stability theorem. Furthermore, some numerical simulations are shown to verify the validity of the theoretical discussions. The results demonstrate the effectiveness of the proposed method in both speed and accuracy points of views.
Volume: 7
Issue: 6
Page: 3436-3445
Publish at: 2017-12-01

Markovian Segmentation of Brain Tumor MRI Images

10.11591/ijict.v6i3.pp155-165
Meryem Ameur , Cherki Daoui , Najlae Idrissi
Image segmentation is a fundamental operation in image processing, which consists to di-vide an image in the homogeneous region for helping a human to analyse image, to diagnose a disease and take the decision. In this work, we present a comparative study between two iterative estimator algorithms such as EM (Expectation-Maximization) and ICE (Iterative Conditional Estimation) according to the complexity, the PSNR index, the SSIM index, the error rate and the convergence. These algorithms are used to segment brain tumor Magnetic Resonance Imaging (MRI) images, under Hidden Markov Chain with Indepedant Noise (HMC-IN). We apply a final Bayesian decision criteria MPM (Marginal Posteriori Mode) to estimate a final configuration of the resulted image X. The experimental results show that ICE and EM give the same results in term of the quality PSNR index, SSIM index and error rate, but ICE converges to a solution faster than EM. Then, ICE is more complex than EM.
Volume: 6
Issue: 3
Page: 155-165
Publish at: 2017-12-01

Solving Course Selection Problem by a Combination of Correlation Analysis and Analytic Hierarchy Process

10.11591/ijece.v7i6.pp3536-3551
Mohammed Al-Sarem
In the universities where students have a chance to select and enroll in a particular course, they require special support to avoid the wrong combination of courses that might lead to delay their study. Analysis shows that the students' selection is mainly influenced by list of factors which we categorized them into three groups of concern: course factors, social factors, and individual factors. This paper proposed a two-phased model where the most correlated courses are generated and prioritized based on the student preferences. At this end, we have applied the multi-criteria analytic hierarchy process (MC-AHP) in order to generate the optimum set of courses from the available courses pool. To validate the model, we applied it to the data from students of the Information System Department at Taibah University, Kingdom of Saudi Arabia. 
Volume: 7
Issue: 6
Page: 3536-3551
Publish at: 2017-12-01

Mobile Decision Support System to Determine Toddler's Nutrition Using Fuzzy Sugeno

10.11591/ijece.v7i6.pp3683-3691
Suharjito Suharjito , Jimmy Jimmy , Abba Suganda Girsang
Determination of nutritional status is closely related to the determination of dietary patterns should be given to infants. Nutrition is very important role in mental, physical development, and human productivity. In this study, the system based on android is developed to determine the nutritional status of infants by using Fuzzy Sugeno. Indicator variables are age, height, circle head, and body weight according to the male or female. In this study, the results of measurements of nutritional status of children with Fuzzy Sugenoare tested by comparing the nutritional quality of the data Posyandu toddler by using anthropometric tables. The results of the evaluation measurement accuracy in this application are compared with the results of manual calculation based infant growth charts according to WHO standards. Therefore, these applications can be used to help the community in monitoring the nutritional status of children so that the growth of children is more appropriate in line with expectations.
Volume: 7
Issue: 6
Page: 3683-3691
Publish at: 2017-12-01

Control strategy of a grid-connected photovoltaic with battery energy storage system for hourly power dispatch

10.11591/ijpeds.v8.i4.pp1830-1840
Mohd Afifi Jusoh , Muhamad Zalani Daud
The high penetration of fluctuated photovoltaic (PV) output power into utility grid system will affect the operation of interconnected grids. The unnecessary output power fluctuation of PV system is contributed by unpredictable nature and inconsistency of solar irradiance and temperature. This paper presents a control scheme to mitigate the output power fluctuations from PV system and dispatch out the constant power on an hourly basis to the utility grid. In this regards, battery energy storage (BES) system is used to eliminate the output power fluctuation. Control scheme is proposed to maintain parameters of BES within required operating constraints. The effectiveness of the proposed control scheme is tested using historical PV system input data obtained from a site in Malaysia. The simulation results show that the proposed control scheme of BES system can properly manage the output power fluctuations of the PV sources by dispatching the output on hourly basis to the utility grid while meeting all required operating constraints.
Volume: 8
Issue: 4
Page: 1830-1840
Publish at: 2017-12-01

Geo-Spatial Information for Managing Ambiguity

10.11591/ijeecs.v8.i3.pp636-638
Senthil Kumar M. , V. Mathivanan
An innate test emerging in any dataset containing data of space as well as time is vulnerability due to different wellsprings of imprecision. Incorporating the effect of the instability is a principal while evaluating the unwavering quality (certainty) of any question result from the hidden information. To bargain with vulnerability, arrangements have been proposed freely in the geo-science and the information science look into group. This interdisciplinary instructional exercise crosses over any barrier between the two groups by giving an exhaustive diagram of the distinctive difficulties required in managing indeterminate geo-spatial information, by looking over arrangements from both research groups, and by distinguishing likenesses, cooperative energies and open research issues.
Volume: 8
Issue: 3
Page: 636-638
Publish at: 2017-12-01

Robust Video Watermarking Scheme Based on Intra-Coding Process in MPEG-2 Style

10.11591/ijece.v7i6.pp3332-3343
Rakesh Ahuja , S. S. Bedi
The proposed scheme implemented a semi blind digital watermarking method for video exploiting MPEG-2 standard. The watermark is inserted into selected high frequency coefficients of plain types of discrete cosine transform blocks instead of edge and texture blocks during intra coding process. The selection is essential because the error in such type of blocks is less sensitive to human eyes as compared to other categories of blocks. Therefore, the perceptibility of watermarked video does not degraded sharply. Visual quality is also maintained as motion vectors used for generating the motion compensated images are untouched during the entire watermarking process. Experimental results revealed that the scheme is not only robust to re-compression attack, spatial synchronization attacks like cropping, rotation but also strong to temporal synchronization attacks like frame inserting, deleting, swapping and averaging. The superiority of the anticipated method is obtaining the best sturdiness results contrast to the recently delivered schemes.
Volume: 7
Issue: 6
Page: 3332-3343
Publish at: 2017-12-01

Maximum Radiated Emissions of Printed Circuit Board Using Analytical Methods

10.11591/ijece.v7i6.pp2919-2928
Mohd Zarar Mohd Jenu , Ahmed M. Sayegh , Syarfa Zahirah Sapuan
The rapid progress of technology has imposed significant challenges on Printed Circuit Boards (PCB) designers. Once of those challenges is to satisfy the electromagnetic compatibility (EMC) compliance requirements. For that reason, EMC compliance must be considered earlier at the design stage for time and cost savings. Conventionally, full wave simulation is employed to check whether the designed PCB meets EMC standards or not. However, this method is not a suitable option since it requires intensive computational time and thus increasing the unit cost. This paper describes novel analytical models for estimating the radiated emissions (RE) of PCB. These models can be used to help the circuit designer to modify their circuit based on the maximum allowable RE comparing to the relevant EMC-RE standard limit. Although there are many RE sources on PCB, this paper focuses on the significant source of RE on PCB; namely PCB-traces. The trace geometry, termination impedance, dielectric type, etc. can be specified based on the maximum allowable emissions. The proposed models were verified by comparing the results of the proposed models with both simulation and experimental results. Good agreements were obtained between the analytically computed results and simulation/measurement results with accuracy of ±3dB.
Volume: 7
Issue: 6
Page: 2919-2928
Publish at: 2017-12-01

Experimental Comparative Study of Feedback Linearized Controller and Proportional Integral Controller of the DC Bus Voltage of Three-phase Shunt Active Power Filter

10.11591/ijpeds.v8.i4.pp1481-1493
Ismail Ghadbane , Mohamed Toufik Benchouia
In This paper we present experimental comparative study of feedBack Linearized and Proportional Integral (PI) Controller of the DC bus voltage of three phase shunt Active Power Filter (APF). The FeedBack Linearized and PI controllers are introduced to improve tracking performance characteristics, power quality and minimized consumption of the reactive power. The algorithm used to identify the reference currents is based on the Self Tuning Filter (STF). The firing pulses of the IGBTs inverter are generated using a hysteresis current controller; which is implemented on an analogue card. Finally, the above study, under steady state and transient conditions, is illustrated with signal-flow graphs and corresponding analysis. This study was verified by experimental tests on hardware prototype based on dSPACE-1104. The experimental results show the feasibility and the effectiveness of the designed active filter, associated with Feedback Linearized and PI controllers and are capability in meeting the IEEE 519-1992 recommended harmonic standard limits.
Volume: 8
Issue: 4
Page: 1481-1493
Publish at: 2017-12-01
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