Author Topic: Research Papers - IJSER, Volume 2, Issue 4, April 2011 (Part IV)  (Read 5337 times)

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Research Papers Published in April 2011 Edition
Full Paper Download:http://www.ijser.org/ResearchPaperPublishing_April2011.aspx

Distributed Generation Planning Optimization Using Multiobjective Evolutionary Algorithms[Full-Text]
Mahmood Sheidaee, Mohsen Kalantar

In this paper, a method to determine the size - location of Distributed Generations (DGs) in distribution systems based on multi objective performance index is provided considering load models. We will see that load models affect the location and the optimized size of Distributed Generations in distributed systems significantly. The simulation studies are also done based on a new multi objective evolutionary algorithm. The proposed method has a mechanism to keep the diversity to overcome the premature convergence and the other problems. A hierarchical clustering algorithm is used to provide a manageable and representative Pareto set for decision maker. In addition, fuzzy set theory is used to extract the best solution. Comparing this method with the other methods shows the superiority of proposed method. Furthermore, this method can easily satisfy other purposes with little development and extension.

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Marketing Of Asian Countries as Tourist Destination- Comparative Study of India and Malaysia[Full-Text]
Dr Reshma Nasreen, Nguyen Toan Thang

Tourism has gradually grown over the years as a full fledged industry. Many countries are gaining from this welcome change. The contributions of this sector to the country's coffers are sizable for some countries, while some countries have a long way to go. This research paper attempts to study the reasons of lack of optimal contribution of this sector in India and also forays into strategies that can be adopted to capitalize on the patterns prevalent in tourist behavior. A country like India with a commendable historical significance and size has not been able to garner as much of tourist attention because of certain factors. India has a lot of offerings to whip the appetite of an avid tourist, but the varieties have either not been promoted, or if promoted lack of associated services have not led to desired synergies. After identifying the gaps between the two countries (India & Malaysia), the paper puts forth the tourists' patterns of behavior through the data collected. The questionnaire has been administered to tourists in New Delhi and Agra (cities in India). Malaysia on the other hand has had a steady stream of tourists trickling down and benefiting its economy.

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Segmentation Techniques for Iris Recognition System[Full-Text]
Surjeet Singh, Kulbir Singh

A biometric system provides automatic identification of an individual based on a unique feature or characteristic possessed by the individual. Iris recognition is regarded as the most reliable and accurate biometric identification system available. Iris recognition systems capture an image of an individual's eye, the iris in the image is then segmented and normalized for feature extraction process. The performance of iris recognition systems highly depends on segmentation and normalization. This paper discusses the performance of segmentation techniques for iris recognition systems to increase the overall accuracy.

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Clinical and Computational Study of Geometry & Heamodynamics of Arterial Stenosis[Full-Text]
Krittika Dasgupta, Abhirup Roy Choudhury, Abhijit Chanda, Debabrata Nag

Stenosis is abnormal narrowing of blood vessels. The presence of stenosis in arteries may cause critical flow conditions. It may finally lead to stroke and heart-attack. A clinical study has been done on more than 130 patients along with computational study using 2D axisymmetric rigid model of stenosis in the carotid artery. Assumed shapes of deposition zone and the degree of occlusion used in the analysis were taken from clinical data. The Navier-Stokes equations for incompressible fluid flow have been considered as the governing equations and it has been solved with varying flow parameters using standard CFD software package. The radial velocity profiles at various points of the flow field, the centerline velocity plot and the centerline pressure plots have been obtained from computational study and compared with the clinical data.

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Investigation of X-ray Plasmon Satellites in Rare Earth Compounds[Full-Text]
Ajay Vikram Singh, Dr. Sameer Sinha

In the characteristic X-ray Spectra, Diagram as well as non Diagram lines are present. Those lines which fit in the conventional energy level diagram are called Diagram lines. & those lines which do not fit in the conventional energy level diagram are called non diagram lines. It is also known as "Satellites or Second order lines". Satellites are generally of weak intensity lines & are found close to more intense parent line. The satellites which are observed on higher energy side are called high energy satellites (HES) whereas those are observed on lower energy side are called lower energy satellites (LES). First Siegbahn & Stenstroem observed these satellites in the K-Spectra of element from Cr (24) to Ge (32) while coster theraeus & Richtmyer in the L-Spectra of element from Cu (29) to Sb (51) & Hajlmar, Hindberg & Hirsch in the M-Spectra of elements from Yb (70) to U (92). Several theories were proposed from time to time to explain the origin of these satellites. Out of these theories the plasmon theory is found to be the most suitable theory especially for those satellites.

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Improvement of Power System Stability by Simultaneous AC-DC Power Transmission[Full-Text]
T.Vijay Muni, T.Vinoditha, D.Kumar Swamy

This paper presents the concept of simultaneous ac-dc power transmission.Long extra high voltage (EHV) ac lines cannot be loaded to their thermal limits due to this instability occurs in the power system.With the scheme proposed in this paper,it is possible to load these lines very close to their thermal limits.The conductors are allowed to carry usual ac along dc superimposed on it.The advantage of parallel ac-dc transmission for improvement of transient stability and dynamic stability and dampout oscillations have been established.Simulation study is carried out in MATLAB software package.The results shows the stability of power system when compared with only ac transmission.

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A Comprehensive Distributed Generation Planning Optimization with Load Models[Full-Text]
Mahmood Sheidaee, Mohsen Kalanter

In this paper a comprehensive model for Distribution Systems Planning (DSP) in the case of using Distributed Generation (DG), with regard to load models is provided. Proposed model optimizes size and location of the distributed generation. This model can optimize investment cost in distributed generation better than other solutions. It minimizes the operating costs and total cost of the system losses. This Model affects the optimum location and size of the distributed generation in distribution systems significantly. Simulation studies based on a new multiobjective evolutionary algorithm is achieved. It is important that in the analysis made in this paper, DG is introduced as a key element in solving the DSP. Moreover, the proposed method easily and with little development can satisfy the other goals.

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Positive Impact of Mobility Speed on Performance of AODV at Increased Network Load[Full-Text]
Rajesh Deshmukh, Asha Ambhaikar

This paper studies impact of changing mobility speed on the performance of a reactive routing protocol AODV with reference to varying network load. For experimental purposes, initially we observed the performance of AODV with increasing Network Load from 4 packets to 24 packets at the maximum mobility speed of 10 m/s. In another scenario we observed the performance of AODV with increasing Network Load from 4 packets to 24 packets at maximum mobility speed of 20 m/s. The performance of AODV is observed across Packet Delivery Ratio, Loss Packet Ratio and Routing overhead parameters. Our simulation results show that AODV is performing better with higher mobility speed at higher network load.

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Development and Physical, Chemical and Mechanical Characterization of Doped Hydroxyapatite [Full-Text]
Promita Bhattacharjee, Howa Begam, Abhijit Chanda

In this study, we made an attempt to synthesize doped bioactive hydroxyapatite (HAp) ceramic powder using a simple Chemical method and studied its physical and mechanical properties. Different quantities (2wt% and 5 wt%) of Magnesium chloride Hexahydrate , Zinc oxide, Titanium oxide were incorporated as dopants into Hap at the time of synthesis. The synthesized powder samples were analyzed for their phases using X-ray diffraction technique, Fourier Transform Infrared Spectroscopy. The synthesized powders were uniaxially compacted and then sintered at 1250C for 1hr in air. Vicker's hardness testing was performed to determine the hardness of the sintered structures. Fracture toughness of sintered samples was calculated using Inverted Optical Microscope with Image Analysis software.

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A chart for general and complicated data visualization[Full-Text]
M Siluvairajah

Massive datasets arise naturally as a result of automated monitoring and transaction archival. Military intelligence data, stock trades, retail purchases, medical and scientific observations, weather monitoring, spacecraft sensor data and censors data are all examples of data streams continuously logged and stored in extremely large volumes, which create the need for innovative data visualization solutions. Although, there are many on-going researches and developments on this field recently, there are only few solutions to visualize information for general public. In this paper, I explore different methods to use ManoStick chart to visualize information.

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Research Papers Published in April 2011 Edition
Full Paper Download:http://www.ijser.org/ResearchPaperPublishing_April2011.aspx