1,720,956 research outputs found
Investigation Of The Potential Impacts Of The Sea Level Rise On Coastal Areas
Get PDFTez (Doktora) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2012Thesis (PhD) -- İstanbul Technical University, Institute of Science and Technology, 2012Üç tarafı denizlerle çevrili ülkemizde; nüfusun önemli bir bölümünün kıyı alanlarında yaşadığı, verimli tarım alanlarının ve önemli turizm tesislerinin yine kıyı bölgelerinde yer aldığı, gayrisafi millî hâsılanın büyük bir bölümünün bu alanlardaki ticaret ile oluştuğu, endüstri mallarının ihracat ve ithalatının limanlar aracılığıyla büyük oranda deniz yoluyla yapıldığı göz önüne alınırsa, deniz seviyesi yükselmelerinin özellikle düşük kotlu ve korumasız kıyı alanları üzerinde çeşitli problemlere yol açacağı açıktır. Deniz seviyesi yükselmelerinin potansiyel etkileri arasında; kıyı alanlarının sular altında kalması, kumsalların erozyona uğraması, yer altı sularının tuzlanması, geçici su baskınlarının artması, kıyı tarımı, turizmi, ticareti ve alt yapı tesislerinin zarar görmesi, kıyısal ekosistemin değişmesi gibi birçok fiziksel, sosyal ve ekonomik hususları sıralamak mümkündür. Ülkemizin en verimli kıyısal bölgeleri olan Çukurova ve Kızılırmak Deltaları; topografik, ekonomik ve ekolojik durumu göz önüne alındığında deniz seviyesi yükselmesine en duyarlı alanlar olarak karşımıza çıkmaktadır. Bu çalışmada, öncelikle ulusal ölçekte CVI analizi ile kıyı etkilenebilirliği araştırılmış, ardından uydu altimetre gözlemlere dayalı olarak ve CBS araçları kullanarak deniz seviyesi yükselmesi ve ekstrem deniz durumu karşısında önümüzdeki yüzyıl içerisinde Çukurova ve Kızılırmak Deltaları etkilenebilirliği ortaya konulmaya çalışılmıştır. Çalışmada sonunda elde edilen bulguların, bölgelerin uzun dönemli kıyı alanı planlamasına ve yönetimine katkı sağlayacağı değerlendirilmektedir.It is clear that sea level rise will cause various problems on low-lying and unprotected coastal areas of our country surrounded by sea on three side, because the fact that significant part of the population live in, fertile agricultural areas and important tourism facilities are situated on, considerable amount of the gross national product is formed by trading on coastal areas and exportation/importation of the industry goods are primarily carried out by coastal harbors. Permanent inundation, beach erosion, salt water intrusion into the underground aquifers, exacerbation of flooding, agricultural degradation, depletion of coastal ecosystem, biodiversity, tourism, trading and infrastructure can be outlined as the potential impacts of sea level rise on the coastal areas. Çukurova and Kızılırmak deltas, the most fertile coastal areas of our country, are considered to be the most susceptible areas to the sea level rise due to their topographical, economical and ecological features. In this study, coastal vulnerability of Çukurova and Kızılırmak deltas due to the projected sea level rise and extreme sea state conditions is explored based on the satellite radar altimeter observations and GIS tools. The findings of the study are considered to contribute to the long term coastal area planning and management of these deltaic zones.DoktoraPh
Adaptation Of Turkish Geographical Database At The 1:1 Million Scale To European Geographical Database And Publishing On The Internet/intranet Environment
Get PDFTez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2007Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2007Son yıllarda, farklı isteklere hizmet eden sayısal haritalar ile coğrafi bilgi sistemi kullanımına yönelik dünya çapında yürütülen birçok çalışma bulunmaktadır. Bu çalışmalardan biri, Avrupa Ulusal Haritacılık Kuruluşları Birliği (EuroGeographics – EG) bünyesinde yer alan ve 1:1.000.000 ölçekli Avrupa veri bütünlüğünün sağlanması ile bunların harita ortamında sunulmasını amaçlayan EuroGlobalMap (EGM)’dir. Bu çalışmada; EGM kapsamında verilerin toplanması, veri tabanı yapısı ile Türkiye’nin bu yapıya uyumlandırılması süreci araştırılmıştır. Bununla beraber internet haritacılığı hakkında genel bilgiler verilmiş, harita sunum türleri ile internet ortamında CBS uygulamaları açıklanmıştır. EGM veri yapısının özelliklerini ortaya koymak ve de bu verilerin harita ortamına taşınarak sunumunu gerçekleştirmek amacıyla dinamik harita sunum yöntemi kullanılarak web tabanlı bir uygulama geliştirilmiştir.Lots of studies are existed world wide about the digital maps serving different requests and the utilization of geographical information system recently. One of them is EuroGlobalMap (EGM), which is under the frame of Europe’s National Mapping and Cadastral Agencies (EuroGeographics – EG) and aims to provide the data integrity in Europe at the scale of 1:1 Million and publish them on the map environment. In this study; collection of data, structure of database and the process of the adaptation of Turkey to this structure within the EGM are investigated. In addition, general information about internet mapping is given and methods of publishing map as well as GIS applications on internet are described. A web based application by using dynamic map publishing method is developed in order to introduce the properties of EGM data structure and make a presentation by taking these data into the map environment.Yüksek LisansM.Sc
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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