1,721,005 research outputs found
Improving QoS in internet environment
No full textTo improve QoS in Internet environment, we propose two schemes, called Dynamic Service Rate mechanism and Biased Virtual Clock scheduling algorithm.Master of Engineering (SCE
Improving fairness in ATM ABR service with dynamic VC weights
No full textThis thesis presents work carried out on the fairness value. The main contribution is the proposal of a scheme called Active Fairness.Doctor of Philosophy (SCE
Efficient quality of service provisioning for integrated services
No full textWith increasingly sophisticated network-based multimedia applications being introduced, the ability of networks to support these applications becomes more important. It is a very challenging problem to realize an efficient architecture to transport this real-time traffic as well as the normal data traffic within a single network. Most of the existing traffic control mechanisms are inadequate in providing Quality of Service (QoS) in a manner that closely emulates the transmission pattern of the real-time traffic. In addition, the research on QoS provisioning is often focused solely on this traffic, and the requirements of non-real-time traffic are generally ignored. The result is inefficient network support of integrated services.Master of Philosoph
Permeable Pavements as Sustainable Nature-Based Solutions for the Management of Urban Lake Ecosystems
No full textPermeable pavement systems (PPS) are becoming integral parts of the urban green infrastructure (UGI) planning approaches for the implementation of nature-based solutions (NbS) especially in rapidly developing regions. Global research has demonstrated that UGI is quite essential to regulate and establish the hydrological and ecological functions of urban aquatic ecosystems such as lakes. At a micro-scale level, design of storm water management systems requires detailed planning, as urban flooding has the potential to affect a huge population dwelling in the cities often without any warning. Such events cause drastic changes in the hydrological statuses of urban lakes, by gradually decreasing their natural resilience over a period. An associated risk with the degradation of urban lake systems pertains to their immense contributions in maintaining the ambient temperature profiles. The loss of the urban lake systems will directly lead to a substantial rise in the ambient air temperature and enhanced heat island effect. PPS can offer successful NbS to improve the resilience of the lake systems. PPS would also prove to be instrumental in mitigating the urban heat island effects by intercepting the excessive run-offs, increasing green water collection and storage, as well as by maintaining close-to-natural flow regimes in the case of urban lakes. Such micro-scale NbS offered by the design and implementation of PPS can offer huge environmental, social, and economic benefits in the long run. PPS can also offer direct benefits towards regulating the lake services and can assist in addressing the sustainable development goals for the lake ecosystems in the urban set-up, which are under stress due to various anthropogenic detrimental activities
Improving the performance of ABR point-to-multipoint connections
No full textIn this thesis, problems with the existing consolidation algorithms are identified, and a new consolidation algorthm is proposed which overcomes these problems. The results obtained using simulation show that our proposed consolidation algorithm is efficient in terms of scalability, accuracy and responsiveness, and it reduces loss of information related to the consolidation process.Master of Engineering (SCE
Assessment of tropical cyclone amphan affected inundation areas using sentinel-1 satellite data
No full textTropical cyclones as natural disturbances, influence ecosystem structure, function and dynamics at the global scale. This study assesses the inundation due to the super cyclone Amphan in coastal districts of eastern India by leveraging the computational power of Google Earth Engine (GEE) and the availability of high resolution Sentinel-1 Synthetic Aperture Radar (SAR) data. A cloud-based image processing framework was developed and implemented in GEE for classification using Random Forest algorithm. The inundation areas due to storm surge owing to cyclone Amphan, were mapped and further categorised to different land use and land cover classes based on an existing land cover map. Sentinel-1 images were useful in post-cyclone studies for the change detection analysis due to its higher temporal resolution and cloud penetration ability. The study found that the majority of agricultural and agricultural fallow lands were inundated in the coastal districts. The availability of open-source cloud-based data processing platforms provides cost effective way to rapidly gather accurate geospatial information. Such information could be useful for emergency response planning and post-event disaster management including relief, rescue and rehabilitation measures; and crop yield loss assessment. Cyclone and Land Use and Land Cover (LULC) change can have significant impacts on the human population and if both coexist, the consequences for people and the surrounding environment may be severe
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
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