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30,609 Article Results

Analysing Vehicular Congestion Scenario in Kuala Lumpur Using Open Traffic

10.11591/ijeecs.v10.i3.pp875-882
Muhammad Ali , Saargunawathy Manogaran , Kamaludin Mohamad Yusof , Muhammad Ramdhan Muhammad Suhaili
Traffic congestion on the roads is mainly the result of overcrowding and this phenomenon happens when a great number of vehicles storm the road, resulting in the disruption of the smooth traffic flow. This greatly affects the daily routines of the people. Not to mention the time that is wasted while a person feels stranded in such situation and it results in the loss of productivity, also deteriorates the societal behavior to a certain extent and have adverse effects on the economy. The natural calamities add to the miseries. It becomes very difficult to manage the traffic flow in situations when there are flash floods or other accidents. Therefore the trend of the traffic seems very unpredictable.    The real-time information and the past data are deemed as the significant inputs for the predictive analysis. Modern day researchers perform the predictive analysis using the simulations as it does not seems to have any accurate and exact predictive model, mainly because of the higher complexity and the perplexing situation the researchers face while performing the analysis. Open Traffic seems to be a viable option, as it is an open source and can be linked with the Open Street. This research targets to study and understand the Open Traffic platform. In this regard the real-time traffic flow pattern in Kuala Lumpur area was successfully been extracted and the analysis was performed using Open Traffic. It was observed and deduced from the results that Kuala Lumpur faces congestion on every major avenue, junction or intersection it mostly owes to the offices and the economic and commercial centers during the peak hours. Some avenues experience the congestion problem due to the tourism.
Volume: 10
Issue: 3
Page: 875-882
Publish at: 2018-06-01

Conceptual Framework of Modelling for Malaysian Household Electrical Energy Consumption using Artificial Neural Network based on Techno-Socio Economic Approach

10.11591/ijece.v8i3.pp1844-1853
Boni Sena , Sheikh Ahmad Zaki , Fitri Yakub , Nelidya Md Yusoff , Mohammad Kholid Ridwan
The residential sector was one of the contributors to the increase in the world energy consumption and CO2 emission due to the increase population, economic development, and improved living standard. Developing a reliable model of electrical energy consumption based on techno-socio economic factors was challenging since many assumptions need to be considered. Over the past decade, bottom-up approaches such as multi-linear regression, artificial neural network (ANN), and conditional demand analysis were used for developing mathematical models to investigate interrelated characteristics among techno-socio economic factors. However, the existing models mostly were focused on countries that had different socio-economic level and cultures from the developing countries of the Association of Southeast Asian Nations. Similar studies in that tropical region were very scarce and only limited for linear modelling under the conditions of techno-socio economic factors. In this study, we proposed ANN for developing a model of electrical energy consumption based on techno-socio economic factors for a tropical region, Malaysia. In order to develop the model, quantitative measurement and qualitative assessment were required. The quantitative measurement was based on the monitoring of total electrical energy consumption with a one-minute interval. In contrast, the qualitative assessment utilized a questionnaire survey to assess household characteristics based on techno-socio economic parameters. The objective of this paper was to propose a conceptual framework of the estimation model for household electrical energy consumption with the consideration of techno-socio economic factors using ANN.
Volume: 8
Issue: 3
Page: 1844-1853
Publish at: 2018-06-01

Automatic Leukemia Cell Counting using Iterative Distance Transform for Convex Sets

10.11591/ijece.v8i3.pp1731-1740
Nenden Siti Fatonah , Handayani Tjandrasa , Chastine Fatichah
The calculation of white blood cells on the acute leukemia microscopic images is one of the stages in the diagnosis of Leukemia disease. The main constraint on calculating the number of white blood cells is the precision in the area of overlapping white blood cells. The research on the calculation of the number of white blood cells overlapping generally based on geometry. However, there was still a calculation error due to over segment or under segment. This paper proposed an Iterative Distance Transform for Convex Sets (IDTCS) method to determine the markers and calculate the number of overlapping white blood cells. Determination of marker was performed on every cell both in single and overlapping white blood cell area. In this study, there were tree stages: segmentation of white blood cells, marker detection and white blood cell count, and contour estimation of every white blood cell. The used data testing was microscopic acute leukemia image data of Acute Lymphoblastic Leukemia (ALL) and Acute Myeloblastic Leukemia (AML). Based on the test results, Iterative Distance Transform for Convex Sets IDTCS method performs better than Distance Transform (DT) and Ultimate Erosion for Convex Sets (UECS) method.
Volume: 8
Issue: 3
Page: 1731-1740
Publish at: 2018-06-01

Impact of Different Time of Use Electricity Pricing Structure on Residential Consumer

10.11591/ijeecs.v10.i3.pp1053-1060
Nur Azrina Mohd Azman , Md Pauzi Abdullah , Mohammad Yusri Hassan , Dalila Mat Said , Faridah Hussin , Norzanah Rosmin , Siti Maherah Hussin
Load profile for residential users is different from commercial users where peak load occurs outside of work hours compared to working hours. Consequently, the Time of Use-based electricity price must be different not only in terms of price, but also in terms of time block structure. This paper examines the impacts of different TOU structures on TOU prices and load profiles of residential consumer. Four TOU structures are tested on the real load profile for a selected residential consumer area in Malaysia. Two elasticity factors are used for each structure to represent two different groups of users, a group that responds highly to price changes and a group that does not. The TOU price set for each structure is determined optimally subject to the following constraints; the price difference between the TOU and a fixed price per hour should be minimized and the amount of difference between price increase and price drop should be equal. From the analysis, the TOU structure with 12-time blocks provides better price signals and peak load reduction.
Volume: 10
Issue: 3
Page: 1053-1060
Publish at: 2018-06-01

Optimal Placement of FACTS Controllers for Congestion Management in the Deregulated Power System

10.11591/ijece.v8i3.pp1336-1344
S. Surender Reddy
This paper proposes a methodology to determine the optimal location of Flexible AC Transmission System (FACTS) controllers for Congestion Management (CM) in the restructured electrical power system. An approach to find the optimum placement of Thyristor Controlled Phase Angle Regulators (TCPAR) and Thyristor Controlled Series Compensators (TCSC) has been proposed in this paper. The proposed methodology is based on the sensitivity of transmission loss which a controller is installed. The total system losses and the power flows are considered as the performance indices. The traditional optimal power flow (OPF) problem is modified to include the market players, who will compete and trade simultaneously, ensuring the system operation stays within the security limits. In this paper, pool and bilateral contracts are considered. Here, an integrated methodology is proposed that includes the FACTS Controllers in a bilateral contract framework to maintain the system security and to minimize the deviations from the contractual requirements. The simulation results on IEEE 30 bus system show that the sensitivity factors could be used effectively for the optimal location of FACTS controllers in response to the required objectives.
Volume: 8
Issue: 3
Page: 1336-1344
Publish at: 2018-06-01

Selection and Validation of Mathematical Models of Power Converters using Rapid Modeling and Control Prototyping Methods

10.11591/ijece.v8i3.pp1551-1568
Fredy Edimer Hoyos , John Edwin Candelo , John Alexander Taborda
This paper presents a methodology based on two interrelated rapid prototyping processes in order to find the best correspondence between theoretical, simulated, and experimental results of a power converter controlled by a digital PWM. The method supplements rapid control prototyping (RCP) with effective math tools to quickly select and validate models of a controlled system. We show stability analysis of the classical and two modified buck converter models controlled by zero average dynamics (ZAD) and fixed-point induction control (FPIC). The methodology consists of obtaining the mathematical representation of power converters with the controllers and the Lyapunov Exponents (LEs). Besides, the theoretical results are compared with the simulated and experimental results by means of one- and two-parameter bifurcation diagrams. The responses of the three models are compared by changing the parameter K_s of the ZAD and the parameter N of the FPIC. The results show that the stability zones, periodic orbits, periodic bands, and chaos are obtained for the three models, finding more similarities between theoretical, simulated, and experimental tests with the third model of the buck converter with ZAD and FPIC as it considers more parameters related to the losses in different elements of the system. Additionally, the intervals of the chaos are obtained by using the LEs and validated by numerical and experimental tests
Volume: 8
Issue: 3
Page: 1551-1568
Publish at: 2018-06-01

Ant Based Cross Layered Optimization Protocol for Wireless Multimedia Sensor Network with Fuzzy Clustering

10.11591/ijeecs.v10.i3.pp1303-1309
Dipali Parag Adhyapak , Sridharan Bhavani , Aparna Pradeep Laturkar
Wireless Multimedia Sensor Network (WMSN) is embedded with large number of Audio, Video and scalar sensor nodes which can able to retrieve the multimedia information from the environment. WMSN has several challenges such as life time of the network, Memory requirement, Coverage, Bandwidth and QoS metrics. Hence selection of routing algorithm is crucial in WMSN. Again interdependencies of the protocol layer cannot be neglected to improve the network performance. Clustering in WMSN is challenging task in order to increase network lifetime and to improve the communication. Hence Fuzzy clustered Ant based cross layer protocol (FCAXL) is proposed. In this paper performance analysis of ant based cross layer optimization protocol with fuzzy clustering based on number of nodes and packet size is done. Simulation results shows that Fuzzy clustered ant based cross layer optimization protocol performs best as compared to AntSenseNet routing protocol, Cross layer routing protocol and Ant based cross layer routing protocol in terms of QoS parameters such as Throughput, Packet delivery ratio and delay. Hence the life time of the network increases.
Volume: 10
Issue: 3
Page: 1303-1309
Publish at: 2018-06-01

Development of Compact Pulse Generator with Adjustable Pulse Width for Pulse Electric Field Treatment Technology

10.11591/ijpeds.v9.i2.pp889-896
Nur Faizal Kasri , Mohamed Afendi Mohamed Piah
The pulse generator which has been implemented in the pulse electric field (PEF) treatment system for food processing is worth to be highlighted and improved. It is parallel with the advancement in semiconductor technology, which offers robust and accurate devices. This research is an effort to produce a low cost, compact and reliable pulse generator as well as equipped with a pulse width modulation (PWM) method for wide selection of frequency and duty cycle. The result shows that the simulation process has proven the theoretical concept to be right and yields the desired outcome based on the designed values. Then, the actual printed circuit board (PCB) has been fabricated to obtain practical results which intended to be compared with the simulation outcomes. Concerning the frequency and its duty cycle, both parameters can be altered without affecting each other. It means by changing the frequency, duty cycle remains the same and vice versa. Thus, this proposed pulse generator achieves its objective and fits to be implemented in PEF treatment technology. It also can replace the conventional pulse forming network (PFN) which is bulky and costly.
Volume: 9
Issue: 2
Page: 889-896
Publish at: 2018-06-01

Anaphora Resolution in Business Process Requirement Engineering

10.11591/ijece.v8i3.pp1766-1773
Riad Sonbol , Ghaida Rebdawi , Nada Ghneim
Anaphora resolution (AR) is one of the most important tasks in natural language processing which focuses on the problem of resolving what a pronoun, or a noun phrase refers to. Moreover, AR plays an essential role when dealing with business process textual description, either when trying to discover the process model from the text, or when validating an existing model. It helps these systems in discovering the core components in any process model (actors and objects).In this paper, we propose a domain specific AR system. The approach starts by automatically generating the concept map of the text, then the system uses this map to resolve references using the syntactic and semantic relations in the concept map. The approach outperforms the state-of-the art performance in the domain of business process texts with more than 73% accuracy. In addition, this approach could be easily adopted to resolve references in other domains.
Volume: 8
Issue: 3
Page: 1766-1773
Publish at: 2018-06-01

R&D of Photovoltaic Thermal (PVT) Systems: an Overview

10.11591/ijpeds.v9.i2.pp803-810
Ahmad Fudholi , Kamaruzzaman Sopian
Photovoltaic thermal (PVT), which is the popular technology for harvesting solar energy, receive solar energy and convert it into electrical and thermal energy simultaneously. In this review, design, heat transfer, energy modelling and performance analysis of PVT systems are presented. Four types of PVT systems base on heat transfer medium; air-based PVT system, water-based PVT system, the combination of water/air-based PVT system, and nanofluid-based PVT system are presented. In addition, major finding on energy and exergy analysis of PVT systems are summarized. 
Volume: 9
Issue: 2
Page: 803-810
Publish at: 2018-06-01

Improving Voltage Profile of Islanded Microgrid using PI Controller

10.11591/ijece.v8i3.pp1383-1388
Sajid Hussain Qazi , Mohd Wazir Mustafa
In islanding operating mode of microgrid, the voltage and frequency of system must be maintained by the microgrid, or else the system will crumble due to the characteristics of different distributed generators (DG) utilized in microgrid. The voltage and frequency lost provision when main grid is disconnected. This paper presents PI controller based voltage controller to regulate voltage to its normal condition. The controller is proposed to be utilized individually with each distributed generator (DG) in microgrid. The controller compares inverter output voltage with voltage at point of common coupling (PCC) and its output is feed to PWM pulse generator to generate appropriate pulses for inverter to regulate voltage to its nominal value. The simulation results of proposed system are shown using MATLAB/Simulink platform.
Volume: 8
Issue: 3
Page: 1383-1388
Publish at: 2018-06-01

Mutual Coupling Reduction between Asymmetric Reflectarray Resonant Elements

10.11591/ijece.v8i3.pp1882-1886
M. Hashim Dahri , M. H. Jamaluddin , M. Inam , M. R. Kamarudin
A physically asymmetric reflectarray element has been proposed for wide band operations. The dual resonant response has been introduced by tilting one side of the square path element. The numerical results have been analyzed in the frequency band between 24GHz to 28GHz where a reflection phase range of more than 600° has been achieved. The proposed asymmetric element can produce mutual coupling with adjacent elements on a reflectarray. This effect has been monitored by placing the elements in a mirror configuration on the surface of reflectarray. The single unit cell element results have been compared with conventional 4 element unit cell and proposed mirroring element configuration. The proposed mirroring element technique can be used to design a broadband reflectarray for high gain applications.
Volume: 8
Issue: 3
Page: 1882-1886
Publish at: 2018-06-01

Artificial Intelligence Control Applied in Wind Energy Conversion System

10.11591/ijpeds.v9.i2.pp571-578
Arama Fatima Zohra , Bousserhane Ismail Khalil , Laribi Slimane , Sahli Youcef , Mazari Benyounes
The objective of this paper is to study the dynamic response of the wind energy conversion system (WECS) based on the Doubly Fed Induction Generator (DFIG). The DFIG rotor is connected to the grid via a converter. The active and reactive power control is realized by the DFIG rotor variables control, using the field oriented control (FOC). The vector control of DFIG is applied by the use of tow regulators PI and the neural network regulator (NN). The generator mathematical model is implemented in Matlab/ Simulink software to simulate a DFIG of 1.5 MW in order to show the efficiency of the performances and robustness of the studied control systems. The simulation obtained results shows that the robustness and response time of the neural network regulator is better than those obtained by the PI classical regulator.
Volume: 9
Issue: 2
Page: 571-578
Publish at: 2018-06-01

FPGA Implementation of High Speed Hardware Efficient Carry Select Adder

10.11591/ijres.v7.i1.pp43-47
Saravanakumar Saravanakumar , Vijeyakumar Vijeyakumar , Sakthisudhan Sakthisudhan
This paper presents a novel architecture for high speed and hardware efficient carry select  addition. We modify the two operand ripple carry addition followed in conventional Carry SeLect Adder(CSLA) with a simple and efficient gate level circuit to reduce area and delay significantly. For this, we use an increment 1 block for generating the sum outputs with carry input 1 instead of second pair ripple carry adder as in conventional CSLA. The novelty of the proposed approach is that it reduces area, and the delay due to carry propagation in second pair of adder cells. The proposed CSLA adder has been designed using structural VHDL code and synthesized using Altera Quartus II. Experimental results show that the proposed design outperform the previous approaches in terms of delay and area reduction.
Volume: 7
Issue: 1
Page: 43-47
Publish at: 2018-05-30

Embedded Hardware Circuit and Software Development of USB based Hardware Accelerator

10.11591/ijres.v7.i1.pp21-33
Sanket Dessai , Sandeep G.
This paper focus on design and develop a Hardware Accelerator which can plug in to Universal Serial Bus of any modern low power low cost embedded development system to do complex processing in a plug and play development environment. Cryptographic algorithms, steganography and encoding decoding applications can use co-devices to accelerate performance. In this paper an implementation of a hardware infrastructure for computing though USB bus of any small scale embedded controller board. Execution engine of the accelerator will be an FPGA which is connected to a USB controller with DDR memory to store user data. FPGAs can perform the process faster than low power microcontrollers to solve such algorithms. For the implementation XILINX ARTIX 7 FPGA is used to off load the algorithm for faster processing. System also has a Cypress USB interface chip for offloading data path. Hardware also has a DRAM memory for dumping the data to be stored. Design also explores different futuristic features like interrupt connection for faster response path, shared memory architecture for hand shake mechanism and GPIO connection for implementation of faster interfaces for IO expansion.
Volume: 7
Issue: 1
Page: 21-33
Publish at: 2018-05-30
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