Construction of Topic Directories Using Levenshtein Similarity Weight

Topic directories are search engines consisting of categories in hierarchical manner. Mapping of a new Web page to an appropriate category of a topic directory is one of the major challenges faced by human-based topic directories due to the rapid pace of growth of the WWW and also the presence of a large number of categories. So, the mapping of new pages onto categories by human experts is an expensive process. Hence, the automation of this process is needed and can be performed using standard similarity measures. In this chapter, we propose an algorithm called Mapping of Web Pages to Categories using Levenshtein Similarity Weight (MPC-LSW algorithm) that performs this mapping of Web pages to categories by comparing the similarity of the pages, ie a page-based comparison instead of the traditional term-based comparison. The time complexity of MPC-LSW is observed to be O (mk) as the terms are eliminated and processing is faster because pages are compressed into strings. Hence, it is an efficient method of mapping

ERRAP: Efficient Retransmission Qos-Aware MAC Scheme for WSNs

In this chapter, we have proposed an Efficient Retransmission Random Access Protocol (ERRAP) that retransmits a new frame within a pre-calculated time slot, which combines scheme of collision avoidance and energy management for low-cost, short-range wireless radios, and low-energy sensor applications. This scheme focuses on efficient MAC scheme to provide autonomous Quality of Service (QoS) to the sensor nodes in one-hop QoS retransmission group in WSNs. The sensor nodes join the network only during random access time. The time interval between random access period could be small. Our simulation results demonstrate the performance of ERRAP protocol which increases the delivery probability and reduces the energy consumption

S 3 DCE: Secure Storing and Sharing of Data in Cloud Environment using user Phrase

Distributed Cloud Environment (DCE) focuses mainly on securing the data and safely shares it to the user. Data leakage may occur by the channel compromising or with the key managers. It is necessary to safeguard the communication channel between the entities before sharing the data. In this process of sharing, what if the key managers compromises with intruders and reveal the information of the user’s key that is used for encryption. The process of securing the key by using the user’s phrase is the key concept used in the proposed system “Secure Storing and Sharing of Data in Cloud Environment using User Phrase (S3DCE). It does not rely on any key managers to generate the key instead; the user himself generates the key. In order to provide double security, the public key derived from the user’s phrase also encrypts the encryption key. S3DCE guarantees privacy, confidentiality and integrity of the user data while storing and sharing. The proposed method S3DCE is more efficient in terms of time, cost and resource utilization compared to the existing algorithm DaSCE (Data Security for Cloud Environment with Semi Trusted Third Party) [22] and DACESM (Data Security for Cloud Environment with Scheduled Key Managers) [23]

ATFR: Attribute based Trustworthy Friend Recommendations Online

Users today relay on social networking platforms for infor-mation retrieval. Information shared on the social networks will be cir-culated through their friend sharing them on their pro les. Thus making trustworthy friends in social networks is more important to maintain data privacy. Existing system compute friends based on their mutual friends which would not be e cient way of selecting friends online [1]. This allows user to get connected with strangers without any information of real friend or fake friend. To overcome this problem attribute based trustworthy friend recommendation system is proposed. Based on this, the attributes of each user is collected during pro le creation and these attributes are subjected to similarity between the users. Each user online are evaluated with their trust score with the help of Trust Score algo-rithm. Experimental result shows the number of friends recommended are trustworthy

Double Diffusive Ltne Porous Convection with Cattaneo Effects in the Solid

The impact of Cattaneo heat flux law in the solid on the onset of double-diffusive Darcy porous convection with local thermal nonequilibrium temperatures is investigated. The Fourier law of heat transfer is invoked for the fluid, whereas the Cattaneo heat flux law used to transfer heat in solid skeleton alters the temperature equation from parabolic to hyperbolic. The results are obtained for porous skeletons of aluminum and copper oxides. Both Cattaneo and solute concentration effects reinforce in controlling the onset of oscillatory convection and some novel consequences are observed. Compared with the results perceived in the absence of solute concentration, a manifestation of oscillatory convection with scaled-interphase heat transfer coefficient as well as solid thermal relaxation time parameter initiates earlier in its presence. The effect of increasing interphase heat transfer coefficient and the Lewis number is to delay and hasten the onset of stationary and oscillatory convection. Besides, the increase in the value of solid thermal relaxation time parameter advances the oscillatory onset. Although the increase in the solute Darcy–Rayleigh number is to delay the stationary onset, it shows a twofold behavior on the onset of oscillatory convection. Before the onset of oscillatory convection, the size of the convection cell gets narrower and after which it becomes much wider. The existing results are retrieved as limiting cases from the current study

Role of Work Life Balance on Psychological Wellbeing of the Teaching Professionals among Bangalore Institutions

Organisation today emphasize balance as paramount interest affected by the personality aspects, family aspects, support scenario, organizational culture and the existence of policies and their usage at the organizational level. Work Life balance as an issue has been explored from both an organizational and individual perspective. The current study aims at understanding. Role of work life balance on psychological wellbeing of the teaching professionals. Both the group were again administered with Psychological wellbeing by Dr.Sudha Bhogle and Dr.Indira to measure their level of Psychological wellbeing and the role of work life balance on occupational stress. A sample of 180 teachers 90 male and 90 female from various colleges of Bengaluru were administered. Directional hypothesis was formulated and the obtained results were statistically analyzed using independent samples‘t’ tests. The obtained’ scores on Psychological wellbeing indicated that there is a significant difference between both the groups, based on the mean scores we can infer that teachers with high work life balance have demonstrated little higher psychological wellbeing compared to teachers with low work life balance index

Measurement of 92Mo(n,α) 89Zr, 97Mo(n,p) 97Nb, 148Nd(n,2n) 147Nd and 146Nd(n,p) 146Pr Reaction Cross Sections at the Neutron Energy of 14.54 MeV with Covariance Analysis

The 92Mo(n,α)89Zr, 97Mo(n,p)97Nb, 148Nd(n,2n)147Nd and 146Nd(n,p)146Pr reaction cross sections with the neutron of energy of 14.54 ± 0.24 MeV have been measured by using the method of activation and off-line γ-ray spectrometry. The neutron was generated from the D-T reaction at the PURNIMA neutron generator of BARC. The 197Au(n,2n)196Au monitor reaction was used for the estimation of neutron flux. The covariance analysis for the uncertainties of the cross sections has been carried out by considering the partial uncertainties of different attributes. The present data have been compared with the literature data, evaluated data and theoretically calculated values from TALYS-1.9 code

Iodine Catalyzed one-Pot Four Component Synthesis of Coumarinyl Phosphoramidates via Sequential Addition of Reactants

An unprecedented synthetic route for the preparation of a library of novel coumarinyl phosphoramidate derivatives via iodine catalysed one-pot four component reactions of ethyl 4-bromo-3-oxo-alkanoate, sodium azide, trialkyl phosphites, and phenols in the ethanol solvent is reported here. The reaction proceeds via the nucleophilic substitution reaction, phosphoramidate rearrangement and Pechmann cyclization with C-C, C-O, C-N and N-P bond formation. The prominent features of this procedure are simple one-pot operation, cost effective, non-toxic and excellent yields of the products

Some Inequalities for the first General Zagreb Index of Graphs and Line Graphs

The first general Zagreb index Mα1(G) of a graph G is equal to the sum of the αth powers of the vertex degrees of G. For α≥0 and k≥1, we obtain the lower and upper bounds for Mα1(G) and Mα1(L(G)) in terms of order, size, minimum/maximum vertex degrees and minimal non-pendant vertex degree using some classical inequalities and majorization technique, where L(G) is the line graph of G. Also, we obtain some bounds and exact values of Mα1(J(G)) and Mα1(Lk(G)), where J(G) is a jump graph (complement of a line graph) and Lk(G) is an iterated line graph of a graph G