1,720,955 research outputs found
An evaluation of wind energy potential at Kati Bandar, Pakistan
No full textAs a developing nation of energy-starved people, Pakistan urgently needs new sources of affordable, clean energy. Wind energy is potentially attractive because of its low environmental impact and sustainability. This work aims to investigate the wind power production potential of sites in southeastern
Pakistan. Wind speed data measured over a one-year period at a typical site on the south-east coast of Pakistan are presented. Frequency distributions of wind speed and wind power densities at three heights, seasonal variations of speed, and estimates of power likely to be produced by commercial turbines are included. The site investigated is found to be a class 4 wind power site with annual average wind speed of 7.16 m/s and power density of 414 W/m2 at 50 mheight. The site is, therefore, likely to be suitable for wind farms as well as small, stand-alone system
National economic and environmental development study: the case of Pakistan
Full text linkPakistan is a developing country bracing for significant economic growth and development in the future. In this regards, the country is poised to shift towards an increased reliance upon its indigenous coal reserves to fuel its development in the 2010-2050 time frame. Although this will significantly raise its projected greenhouse gas emissions, the present study has identified numerous measures which can be taken to shift this future development pathway on to a lower carbon and more climate friendly trajectory. The country, however, requires this shift to be supported through the access and transfer of appropriate technologies and finance. The ensuing “additional” financial needs for mitigation for a cleaner development future range from between U 17 billion. These have been identified in this report along with a potential of 18% and 40% reduction of emissions between below “Business As Usual” scenario which is possible with a shift towards cleaner technologies. These clean development investments, however, need to be made in the near future as otherwise the energy future of Pakistan will get locked into the lower cost - higher carbon options. This mitigation costing estimate will, however, need to be refined and focused further as Pakistan identifies not only the specific technologies that it needs for this low carbon shift (through carrying out the “Technology Needs Assessment”) but also the programmatic, sectoral as well as project specific NAMAs (Nationally Appropriate Mitigation Actions) in the near future. Pakistan is also highly vulnerable to the impacts of climate change and faces immense associated challenges in coping with its unavoidable effects and economic implications. This study has highlighted the need to treat adaptation to climate change as a primary development issue for Pakistan. The potential impacts and sectors demanding prioritized adaptation have been identified in this study and the, associated, costs of adaptation have been estimated utilizing three diverse modeling methodologies – using GDP projections, per-capita figures and “flood” disaster modeling. The resulting adaptation cost figures range from between U 14 billion/year that Pakistan would have to spend at an average in the 2010-2050 time frame to cope with the effects of climate change while it will be also left to, unavoidably, bear significant “residual damage” costs induced due to climate change. The top-down adaptation costing analysis applied in this report is aimed at providing a reasonable first approximation that can be refined over time as relevant and reliable local data becomes available especially from research focusing on sector specific adaptation costing. Most significantly the report reinforces the fact that the issue of climate change is, thus, not only an environmental issue challenging the country but an issue which will directly impinge upon the country’s economic, financial and development future as it deals with its extreme vulnerability to climate change. The significant climate costs identified in this study inextricably shows that climate change is an issue which Pakistan can ill afford to ignore in the future. Finally the report has identified the major financing options available for climate change related activities in Pakistan as well as the significant unilateral climate resources, U$ 4.5 billion in 2007-2009 alone, that the country is already committing to climate change without getting any global recognition for its efforts. In future, global financing will need to augment and leverage such national financial commitments. Also, as climate finance becomes increasingly available at the global level, it would be essential to enact appropriate assimilative national capacity in Pakistan to direct this finance towards nationally identified priorities as well as channelize it transparently and efficiently through consolidated financial mechanisms like a National Climate Change Fund which has been proposed through this study.climate change Pakistan
An evaluation of wind energy potential at Kati Bandar, Pakistan
No full textAs a developing nation of energy-starved people, Pakistan urgently needs new sources of affordable, clean energy. Wind energy is potentially attractive because of its low environmental impact and sustainability. This work aims to investigate the wind power production potential of sites in south-eastern Pakistan. Wind speed data measured over a one-year period at a typical site on the south-east coast of Pakistan are presented. Frequency distributions of wind speed and wind power densities at three heights, seasonal variations of speed, and estimates of power likely to be produced by commercial turbines are included. The site investigated is found to be a class 4 wind power site with annual average wind speed of 7.16Â m/s and power density of 414Â W/m2 at 50Â m height. The site is, therefore, likely to be suitable for wind farms as well as small, stand-alone systems.Wind energy Wind resource evaluation Pakistan wind sites
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
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