1,720,954 research outputs found
SENSOR NETWORKS AND DATA COMMUNICATION
Get PDFMobile Wireless Sensor Network (M-WSN) derives its name from the mobile sink or mobile sensor nodes in the Wireless Sensor Network (WSN). because the sensor nodes are energy constrained, energy efficiency is that the main aspect to be considered in any applications. By considering mobile sensor nodes in WSN, we will have better energy efficiency, improved coverage, and enhanced target tracking in Wireless Sensor Network. thanks to mobility of nodes, a mobile WSN has dynamic topology. For all data gathering applications, the topology of mobile WSN depends on either the trail of mobile sink or position of mobile nodes. So the whole WSN topographic sink is mobile or the sensor nodes are mobile so keep changing.That is, we\u27ve dynamic topology. counting on application scenario, we may use a mobile sink to gather information from a static WSN or a dynamic WSN. generally static WSN uses multihops for digital communication from sensor node to sink. Hence sensor node closer to sink is usually in use and its energy gets exhausted quickly, thereby it dies down first, breaking link to sink and whole network collapses. this is often one among the intense problems to be considered. Mobile WSN is one among approach which will increase life time of network because nodes close sink keeps on changing in order that no particular node are going to be always on the brink of sink. it\u27s also possible by controlled mobility of nodes, all nodes successively can take role of being on the brink of sink and supply necessary services. Also by providing mobility to nodes in controlled manner it also possible to scale back number of hops to sink from a node, there by errors in communication gets reduced. during this article we consider two general application areas, studying the conditions of disastrous area where in static sensor nodes are deployed in disastrous area and a mobile sink agent which is outside the boundary moves around predefined path to collect information’s of disastrous area, a battle field where in two way digital communication between captain and soldiers is Both the captain and the players need a place where there can be less movement.The networking required in both cases is the mobile WSN.We propose proper architecture and digital communication in these contexts. 
ROUTING PROTOCOL FOR WIRELESS SENSOR NETWORKS
Get PDFRecently, Wireless Sensor Network (WSN) has received increased interest of research thanks to its many real-life applications. In WSNs, the sensor nodes sense different phenomenon from the encompassing area and forward data to the sink. Among the available routing protocols (RP), most of them used Low Energy Adaptive Clustering Hierarchy (LEACH) but did not consider the battery energy state while selecting the cluster head (CH). This paper proposed a multi-energy threshold-based routing protocol supported LEACH, which provides different energy thresholds of battery energy state, called multi-energy threshold LEACH (MET-LEACH). The MET-LEACH uses remaining battery energy state to pick the CHs. the primary node dies (FND), the half nodes die (HND), the last node dies (LND), packet reception ratio (PRR) and therefore the application level latency are the performance parameters to evaluate the performance of the proposed MET-LEACH protocol using the Castalia simulator. The simulation results show that MET-LEACH gives significant improvement in terms of FND (112% to 290%), HND (76% to 161%) and LND (76% to 185%) over the performance of LEACH
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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