European Journal of Scientific Research
 Volume 100 No 4
Breeding Ecology of the Great Crested Grebe (Podiceps Cristatus) in Tonga Lake (Northeast Algeria)
Abdelhakim Rouibi, Ali Zitouni, Ali Tahar and Moussa Houhamdi
The Great crested grebe is one of the most common Podicipedidea in the world whose ecology and biology have not well been studied in North Africa. This study reports on its breeding ecology in Tonga Lake, a Ramsar site situated in Northeast Algeria. Egg laying started in early April and lasted about 40 days while hatching started in late April and ended in early June. The specie preferred to nest in vegetation cover consisted of Scirpus lacustris. The 81 nests surveyed contained 2 to 5 eggs with a mean clutch size of 2.81 ± 1.30 eggs and a mean pulli productivity of 1.90 ± 1.87 per nest. Hatching success was positively correlated to clutch size. Hatching success was estimated to 67.54% and it was negatively correlated to vegetation density. Egg loss was mainly due to predation and desertion. Conspecific brood parasitism was a rare event counting for 1.23% of nests.
Keywords: Great crested grebe, breeding, egg laying, hatching, brood parasitism, Tonga Lake, Algeria.
Frequent Periodic Cryptic Sequence Mining in Biological Data
G.M. Karthik and Ramachandra.V. Pujeri
Amino acid sequences are known to constantly mutate and diverge unless there is a limiting condition that makes such a change deleterious. The few existing algorithms that can be applied to find such contiguous approximate pattern mining have drawbacks like poor scalability, lack of guarantees in finding the pattern, and difficulty in adapting to other applications. In this paper, we present a new algorithm called Constraint Based Frequent Motif Mining (CBFMM). CBFMM is a flexible Frequent Pattern-tree-based algorithm that can be used to find frequent patterns with a variety of definitions of motif (pattern) models. They can play an active role in protein and nucleotide pattern mining, which ensure in identification of potentiating malfunction and disease. Therefore, insights into any aspect of the repeats – be it structure, function or evolution – would prove to be of some importance. This study aims to address the relationship between protein sequence and its three-dimensional structure, by examining if large cryptic sequence repeats have the same structure. We have tested the proposed algorithm on biological domains. The conducted comparative study demonstrates the applicability and effectiveness of the proposed algorithm.
Keywords: Motif, FP mining, FP tree, sequence mining, Repetition detection, data mining
Analyzing the Role of Micro-Credits in Development of Home-Based Businesses (The Case Study of Handmade Crafts)
Mohammad Omid
Investment in home-based businesses especially handmade industry has a great importance that one of its main reasons is improving the life of poor people. To this end, Imam Khomeini Relief committee with the aim of decreasing the impacts of poverty and empowering poor families has granted micro-credits to them to establish home-made businesses. Analyzing the impact of micro-credits on development of homemade businesses can provide necessary reasons to support this plan. Therefore, the purpose of this research is to analyze the impact of micro-credits on development of homemade businesses in Iran. This research has been done using descriptive- correlative approach. The statistical society of this research is 20000 needy individuals in Iran that used micro-credits of Relief Committee in 2012 to develop homemade businesses in which 320 individuals out of them were selected for this study using stratified random sampling. The main tool of data collection was questionnaire that its validity was obtained by experts’ panel and its reliability was determined by Cronbach Alfa coefficient (0.77). The result shows that micro-credits on 60.8% of homemade business designs had positive impact. Also, the result of regression analysis shows that micro-credits had positive impact on the capacity of employment, the number of employed, the rate of producing products, investment, income, micro-credit expenditures on development of handmade industry businesses , life, and the rate of storage by people that specifies 61.5% of the impact of micro- credits on manmade industry businesses in Iran.
Keywords: Technical achievement, socio-economical achievement, needy, Relief Committee, micro-credits, uprooting poverty
Performance Analysis of Random Waypoint, Random Direction and Manhattan Mobility Models on Secure Variable Bit Rate Protocol
T. Peer Meera Labbai and V. Rajamani
In MANETs, the on-demand routing protocols are having main challenges in the design environment. The challenges are: Routing, Quality of Service, MAC, Bandwidth and Mobility. Mobility is defined as the process of movement or displacement of mobile nodes from existing place to a new place inside the area. In this work, we have taken the mobility as our concern to consider how the node movements affect the protocol performance. For this, we have taken our on-demand routing protocol, Secure VBOR as our base protocol also we have taken various mobility models such as Random waypoint mobility(RWP) model, Random Direction mobility (RDM)model and Manhattan Mobility(MM) model. Secure VBOR protocol find the path based on the principle of high remaining battery power and stability. Also it provides the security challenge by providing a good key management protocol and providing cryptographic algorithm. In Secure VBOR, groups are formed based on the residual energy of the node. Then the keys are exchanged among the user inside the group. Gateway members are playing the main role in group formation and preventing these attacks. These models capture the behaviors of Secure VBOR protocol in the simulator. The simulation results can show the performance of the Secure VBOR protocol varies based on the mobility models across different performance parameters like throughput, packet delivery ratio and control overhead.
Keywords: MANET, RWP, RDM, Manhattan, Secure VBOR.
Relevant Updated Data Retrieval System for Continuous Text Extraction
Pradeep Kumar Sahoo and S.P. Rajagopalan
A server, that is to keep track of heavy document traffic, is unable to filter the documents which are most relevant and updated for continuous text search queries. This paper focuses on handling continuous text extraction sustaining high document traffic. The main objective is to retrieve recent updated documents that are most relevant to the query by applying sliding window technique. Our solution indexes the streamed documents in the main memory with structure based on the principles of inverted file, and processes document arrival and expiration events with incremental threshold-based method. It also ensures elimination of duplicate document retrieval using unsupervised duplicate detection. The documents are ranked based on user feedback and given higher priority for retrieval.
Keywords: Continuous text queries map-reduce technique, sliding window, unsupervised duplicate detection
Grid Based Switched Reluctance Generator Applications for Wind Power Generation on MPPT Alogorithm using MATLAB/SIMULINK
K. Kannan, S. Sutha and R. Kathirvel
This paper presents a grid including a Switched Reluctance Generator (SRG) with boost dc-dc converter, a single phase PWM inverter for generating the ac outputs. A novel maximum power point tracking (MPPT) control method for Switched Reluctance Generator based variable speed constant frequency wind energy conversion systems (WECS) is used. The fundamental principle of the MPPT algorithm is based on observing the SRG’s output power and shaft speed to change the excitation phase current of SRG. The advantages of the proposed MPPT method are that no cognition of the WECS optimal characteristic or measurement of the wind speed is expected and WG operates at a variable speed. The better exploitation of the available wind energy is achieved, especially under very low wind speeds. To amend the ac grid power supporting reliability, a battery energy storage system with bidirectional buck-boost interfacing converter is accomplished. A PWM inverter based robust control schemes are proposed to yield balanced sinusoidal output voltage waveforms in output voltage under varying load conditions. The proposed method is simulated on a Switched Reluctance Generator (SRG) based Wind Energy Conversion Systems (WECS).This proposed control scheme feasibility and validity are simulated on SIMULINK/SIM POWER SYSTEMS only.
Keywords: Switched Reluctance Generator (SRG), Maximum Power Point Tracking (MPPT), Wind Energy Conversion Systems (WECS).
Review Article: Power Optimization Techniques for Multipliers
S. Jayakumar and A. Sumathi
The increasing demand for computing in portable applications accelerates the study of minimizing power. The growing technology for any processors, digital signal processing chip, and computer applications has created an issue on low power. Multiplication is one of the basic operations and it requires substantially more hardware. Designing high speed multipliers with low power have substantial interest. Some of the important algorithms proposed in literature for VLSI implementable fast multiplier is array multiplier, booth multiplier, BZ-FAD multiplier, Wallace tree multiplier and low power shift-and-add multiplier .In this paper, comparative study of different multipliers is done for low power requirement.
Keywords: Wallace multiplier, array multiplier, booth multiplier, BF-ZAD Multiplier and a low power shift-and-add multiplier
Reliability Aware Service Curve Measurement for Low Mobility Issues in MANETS
R. Kiruthika and R. Uma Rani
In MANET the node mobility is inevitable which may increase the route discovery time. Due to the nature of mobility we need to ensure the reliability to transmit through this specified path. In this paper, multipath routing is considered to predict the number of possible paths between source to destination node. Reliability is used to evaluate the history of sustainability towards node and path. Assessing the level of reliability may helps to predict the risk on the specified path. Service curve measurement feature is used for amount of time required to transfer the data and ensure adequate time. Simulation result is tested with 25, 50 and 100 nodes and its performance is achieving good result on low mobility environment; this architecture enhances the QOS.
Keywords: MANET, Service Curve, Path Reliability Index
Mobilisation par Lixiviation en Laboratoire de Quelques ETM (Fe, Zn, Cu, Pb et Cd) des sols de la Décharge d’Akouédo (Côte D’ivoire): Influence de la Teneur en Matière Organique
Akessé Djamatchè Paul Valéry, Mamadou Koné, Sory Karim Traore, Ardjouma Dembele and Pascal Houenou
Des échantillons de sol prélevés dans la décharge d’Akouédo ont été soumis à des expériences de lixiviation avec différents solvants. L’étude a montré que les éléments les plus toxiques sont les plus mobiles augurant d’un danger pour la nappe phréatique et les cours d’eaux situés en aval de la décharge. La relation entre mobilité potentielle de l’ETM et taux de matière organique est influencée par la solution de lixiviation utilisée et le pH du sol
Keywords: Décharge d’AKOUEDO, Métaux lourds; lixiviation; Mobilité, lagune Ebrié
Urinary Iodine Status in Tlemcen Population (Algeria)
Leïla Benyelles, Farah Djalti, Salima Bouchnak, Tatjana Kadifova Panovska, Abdelillah Amrouche, Houcine Benmehdi and Chabane Sari Daoudi
Iodine is an essential trace element which intervenes in the synthesis of thyroid hormones. Its deficiency can lead to serious health problems like the goiter, the cretinism. The urinary concentration of iodine expressed in µg/l, constitutes a universally accepted parameter to assess the dietary intake of iodine in a population. The status of iodine in Algeria, particularly in Tlemcen, is not yet established, therefore we tried to determine the concentration of urinary iodine in 400 persons of both sexes (age 20-60) living in four regions: Ghazaouet, Tlemcen, Sebdou, Benisnous. The urinary iodine mean value in the region of Ghazaouet is 84.46 µg /l with maximum value reaching 110µg/l. In the region of Tlemcen, mean value of iodine concentration is 71.76 µg/l with maximum value of 87 µg/l. Mean value of iodine concentration measured in Sebdou region is 58.70 µg/l (with a maximum value of 78µg/l) and 46.93 µg/l (with a maximum value of 62.79µg/l) in Benisnous region. Variance analysis per region showed a highly significant difference between the four regions with p<0.001. The highest concentration of iodine in drinking water, between the four regions, was measured in Ghazaouet region, with value of 78.94 µg/l; while lowest iodine concentration was measured in Benisnous, with value of 21.42 µg/l. Values observed in Tlemcen (44.37µg/l) and Sebdou (23.42µg/l) showed significant difference between the 4 regions: p<0.001.
Keywords: Urinary iodine, Tlemcen, drinking water, population
Non Rigid Registration of Neck MRI Image for Cancer Detection
B. Balasubramanian and K.L. Shunmuganathan
An efficient algorithm for non-rigid image registration is proposed. The proposed method consists of registration process, which is based on the use of magnetic resonance (MR) images for head and neck radiotherapy planning, which involves their registration with computed tomography (CT) images. To evaluate the image registration accuracy and efficiency of CT and MRI fusion using Normalized Mutual Information (NMI) in nasopharyngeal carcinoma (NPC) patients. Our experiment involves ten sets of CT and MRI scans of 10 NPC patients are fused using Normalized Mutual Information (NMI algorithms,). Registration accuracy was evaluated by performing statistical analysis of the coordinate differences between CT and MR anatomical landmarks along the x-, y- and z-axes. The time required to complete the registration process using this algorithms was also recorded.
Keywords: Normalized Mutual Information (NMI), Magnetic resonance (MR) images, Computed tomography (CT), Nasopharyngeal carcinoma (NPC), Non rigid registration
Study the Balance of Domestic Violence on Women and their Relationship with the Marital Characteristics (with Emphasis on Cultural Differences)
Zahra Firoozbakht
Field and goal: domestic violence one of the common causes of traumatic physical and psychological conditions in women. In addition, can affect directly or indirectly on the future viability of offspring, and individuals with the qualities of individual, family and social - economic could be in harm's way for the emergence of this problem. From here it is in the current study were implemented and building the goal of identifying domestic violence on women and its relationship with marital characteristics in women revisions to family health center in therapeutic health centers in Tehran city at 2007. Method: This study is a descriptive study of synthetic type which 811 people were selected from women revisions style class - random. Tools used to gather information through the questionnaire, which was completed by the conversation. In order to analyze the information was used descriptive statistical data and comprehensive deduction to test root Kay and Fisher exact test.
Keywords: Domestic violence, violence on women, the marital qualities
Design of an Integrated ATM Banking System Through Iris Recognition
John Peter T, Rajesh V, Ebenezer G and Silambarasan K
ATM is currently used in banking system. The security provided with ATM systems has some backdoors. It has been improved by using biometric verification techniques like face recognition, fingerprints, voice and other traits, comparing these existing traits, there is still need for considerable computer vision-Iris recognition. User identification is a major issue in a security system, Iris verification allows identifying the user uniquely. It is necessary to check the personal identification of the user to avoid unauthorized access. IRIS Bio-Metric (IBIO) is evolved by combining multiple bank accounts of a single user, which comes under the control of Iris account
Keywords: Biometrics, ATM, IBIO, IRIS, Hamming distance
Bio-Inspired Algorithms for Voltage profile improvement and Loss Reduction using Multi-Type FACTS Devices
D. Karthikaikannan and G. Ravi
Genetic algorithms (GA) and particle swarm optimization (PSO) are the two bio-inspired algorithms attracted considerable attention among various heuristic optimization techniques. These two approaches are supposed to obtain a solution to a given objective function but work with different strategies and computational effort. This paper presents the application and performance comparison of PSO and GA optimization techniques, for voltage profile improvement and active power loss minimization of power system using multi-type FACTS devices. Among various FACTS controllers, Static Var Compensator (SVC) and Thyristor Controlled Series Capacitor (TCSC) are considered. The optimizations are performed on two parameters: the location of the devices and their values. The comparison of GA and PSO is tested on modified IEEE 30 bus power system for optimal allocation of multi-type FACTS devices. The performance of both optimization techniques in terms of parameter setting, convergence rate and computational time is compared. The results show the effectiveness of particle swarm optimization than Genetic Algorithm (GA) in loss reduction and voltage profile improvement.
Keywords: FACTS devices, PSO, GA, optimal location, loss reduction, voltage profile improvement