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27,860 Article Results

The Effects of Nano Fillers on Space Charge Distribution in Cross-Linked Polyethylene

10.11591/ijece.v7i6.pp3147-3152
A. N. Ramani , A. M. Ariffin , Gobinath Vijian , Ahmad Basri Abd Ghani
The performance of polymeric insulation will be distorted by the accumulation of space charge. This will lead to local electric field enhancement within the insulation material that can cause degradation and electrical breakdown. The introduction of nanofillers in the insulation material is expected to reduce the space charge effect. However, there is a need to analyze potential nanofillers to determine the best option. Therefore, the objective of this research work is to examine two types of nanofillers for Cross-Linked Polyethylene (XLPE); Zinc Oxide (ZnO) and Acrylic (PA40). The effects of these nanofillers were measured using the Pulsed-Electro Acoustic (PEA) method. The development of space charge is observed at three different DC voltage levels in room temperature. The results show that hetero charge distribution is dominant in pure XLPE materials. The use of both nanofiller types have significant effect in decreasing the space charge accumulation. With nanofillers, the charge profile changed to homo-charge distribution, suppressing the space charge formation. Comparisonbetween both the nanofillers show that PA40 has better suppression performance than ZnO.
Volume: 7
Issue: 6
Page: 3147-3152
Publish at: 2017-12-01

A Novel Approach to Study the Effects of Anesthesia on Respiratory Signals by using the EEG Signals

10.11591/ijece.v7i6.pp3313-3317
Mohd Suhaib Kidwai , S. Hasan Saeed
General anesthesia plays a crucial role in many surgical procedures, and it therefore has an enormous impact on human health. There are no precise measures for maintaining the correct dose of anesthetic, and there is currently no fully reliable instrument to monitor depth of anesthesia. In this paper, a novel approach has been proposed for detecting the changes in synchronism of brain signals, taken from EEG machine. During the effect of anesthesia, there are certain changes in the EEG signals. Those signals show changes in their synchronism. This phenomenon of synchronism can be utilized to study the effect of anesthesia on respiratory parameters like respiration rate etc, and hence the quantity of anesthesia can be regulated, and if any problem occurs in breathing during the effect of anesthesia on patient, that can also be monitored.
Volume: 7
Issue: 6
Page: 3313-3317
Publish at: 2017-12-01

Control of Chaos in a Current Mode Controlled Buck Boost Converter Using Weak Periodic Perturbation Method

10.11591/ijpeds.v8.i4.pp1467-1480
P. Sriramalakshmi , A. Kavitha , P. Sanjeevikumar , Tole Sutikno , Pandav Kiran Maroti , Vigna K. Ramachandaramurthy
This paper analyses the nonlinear phenomena in current mode controlled buck-boost converter. The system undergoes various operating regions whenever there is a change in non linear elements presented in the system as well as in the loads. In this work, inductor current is considered as the reference for analysis.The results show that the converter enters into period-1, periodic doubling and chaotic regions as per the parameter (IL) variations.  The proposed control strategy, weak periodic perturbation (WPP) method tries to stabilize the system from the chaotic behavior.The buck boost converter along with the control system is simulated using MATLAB/SIMULINK software tool and the results are presented.The hardware implementation of the system is done and the results are verified with  the simulation results. It shows that the WPP can transform the system behaviour from the chaotic region to the periodic one. 
Volume: 8
Issue: 4
Page: 1467-1480
Publish at: 2017-12-01

Analysis and Evaluation of Performance Parameters of Modified Single Ended Primary Inductance Converter

10.11591/ijpeds.v8.i4.pp1585-1594
Hemalatha J N , Hariprasad S A , Anitha G S
The objective of this paper is to propose a modified Single Ended Primary Inductance converter topology with passive lossless snubber cell to achieve Zero Voltage Switching (ZVS) of the device near turn off and Zero Current Switching (ZCS) near turn on. By using the snubber cell effectively with the converter reduces the switching stress by restricting the large variations in voltage and current. The detailed analysis of the circuit with relevant waveforms of the circuit is described. The circuit is designed for a load of 100W at 12V output from an input source ranging between 20-30V. The circuit is modelled in MATLAB Simulink platform and the parameters are compared with conventional circuit. From the results it is shown that the proposed circuit operates at a lesser voltage stress and at higher efficiency than conventional one.
Volume: 8
Issue: 4
Page: 1585-1594
Publish at: 2017-12-01

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

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
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