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Geophysical methods used in investigating of geothermal areas and applications in Yozgat-Saraykent geothermal area
No full textBu tezin, veri tabanı üzerinden yayınlanma izni bulunmamaktadır. Yayınlanma izni olmayan tezlerin basılı kopyalarına Üniversite kütüphaneniz aracılığıyla (TÜBESS üzerinden) erişebilirsiniz.Fen Bilimleri Enstitüsü, Jeoloji Mühendisliği Ana Bilim DalıV ÖZET Yüksek Lisans Tezi JEOTERMAL SAHALARIN ARANMASINDA UYGULANAN JEOFİZİK YÖNTEMLER VE YOZGAT-SARAYKENT BÖLGESİNDEKİ UYGULAMALARI Atakan ALACA Cumhuriyet Üniversitesi Fen Bilimleri Enstitüsü Jeoloji Mühendisliği Anabilim dalı Danışman : Doç. Dr. Semir ÖVER Yozgat-Saraykent jeotermal alanındaki jeofizik araştırmanın temel amacı; sahadaki jeotermal olasılığı ortaya çıkarmak, jeotermal sistemin özelliklerim ve akiferler ile koyu yerlerim tahmin etmektir. Jeotermal sistemi karakterize eden parametreler, sıcaklık, basınç, porozite (su/buhar içeriği), permeabilite ve akışkanın kimyasal özellikleridir. İyi bir jeotermal rezervuarda yüksek sıcaklık, yüksek basınç, yüksek porozite ve permeabilite olması, ayrıca gazlar ve çözünmemiş katıların olmaması gerekmektedir. Çoğu arama metotları bu temel parametreleri dolaylı olarak tahmin eder. Jeotermal araştırma lardaki en önemli metotlar şunlardır: Jeolojik haritalama, termal suların kimyasal çalışması, jeofizik ölçüler ve arama sondajları. Jeofiziksel araştırmalar, yer kabuğunun fiziksel özellikleri, jeolojik yapı ve jeotermal sistemin özelliklerine ilişkin çeşitli parametrelerin tespiti amacıyla yapılır. Jeotermal araştırmalardakı görev jeotermal kaynağın yerini, yayılımını ve derinliğini ortaya koymaktır. Jeotermal akışkan içeren kayaçlar genellikle düşük rezistivite anomalileri ile karakterizedir. Bu nedenle yerin derinliklerindeki elektrik rezistivite ölçüm metotları, jeotermal rezervuarın araştırılmasında kullanılan jeofizik metotların en faydalısıdır. Jeofizik metotlar sondaja nazaran daha düşük maliyette kesin ve verimli bilgi üretebilmektedir. Hiçbir özel teknik evrensel anlamda kullanılamaz ve metotlar ortama aygun olarak seçilmelidir. Jeofizik metotların çoğu, büyük derinliklere inildikçe gitgide azalara çözünürlük kapasitesine sahiptir.VI Unutulmamalıdır ki yorumlarda tek başına jeofizik verilere dayanılmaz. Saha jeolojisi, jeokimya ve sondaj çalışmalarının, jeotermal sistemin bütün detaylarının tespiti için uygulanması gereklidir. Jeotermal potansiyelin tespit edilmesi amacıyla Yozgat-Saraykent jeotermal alanında gravite, manyetik ve jeoelektrik yöntemler uygulanmışta: Elde edilen veriler jeolojik ve jeokimyasal veriler ile birleştirilmiştir. Bu çalışmaların sonunda, temel kayanın konumu, mağmatik intrüzyonlar, düşük rezistivite zordan, jeolojik yap ve stratigrafi belirlenmiş, jeotermal alan özellikle jeoelektrik haritalar yardımı ile ortaya konulmuştur. Anahtar kelimeler : Jeotermal sahalar, Jeofizik yöntemler, Yozgat-SaraykentVII SUMMAHf M.Sc Thesâ, GEOPHYSICAL METHODS USED IN INVESTJSATING OF GEOTHERMAL AREAS AND APPLICATIONS IN YOZGAT-SARAflKNT GEOTHERMAL AREA Atakan ALACA Cumhuriyet Ünnersitesi Graduate School d" Natural and Applied Sciences Department of Geological Engineering Supervisor : Doç. Dr. Scmir ÖVER The primary aim Of gephysical exploration of Yo^at-Saraykent geothermal area is to find geothermal prospects, estimate properties of the system and locate aquifers and site wells. The fundemental parameters of interest which characterize a geothermal system are : Temperature, pressure, porosity (water/steam content), permeability, chemical composition of fluid. A good geothermal reservoir has high temperatore, high pressure, high porosity and permeability and low content of dissolved solids and gases in the water. Most exploration methods estimate the fundamental parameters indirectly..Ihe most important methods in geothermal exploration are: Geological mapping, chemical study of thermal water, geophysical measurements (fee! methods (temperature, rezistivity), structural methods (seismics, gravity, magnetics), exptaatory drilling, logging. In Gephysical explorations the physical properties of the earth's crust ae examinaned. The various parameters connected to geological structure and the properties of geothermal systems are measured. In geothermal exploration the task is the detection and deliafen of geothermal resources, the location of exploitable reservoirs and the siting of drilholes through which hot fluids at depth can be extracted. Rocks containing geothermal fluids are usualŞr characterized by anomalously low rezistivity. Therefore, those methods Which measure He electrical rezistivity at depth in the ground have been the most useful of all geophysical methods used to prospect for geothermal reservoirs. Geophysical methods can often provide information as effectively, and certainly at a lower cost, than drilling a borehole.V1I1 It should be recognized that no particular technique is universally applicable, and methods should be chosen carefully to suit the situation. Most geophysical methods display a progressive reduction of resolving capasity as they arc extended to greater depths. Further it should be born in mind thai geophysical exploration cannot stand alone, must be applied along with field geology, geochemistry and drilling in order to resolve the nature of the subsurface geothermal systems in as much detail as possible. In order to determine a reservoir, some geophysical methods, such as gravity, magnetic and geoelectric are applied for Saraykent geothermal area. The obtained data have been combined with geologic and geochemical studies. At the end of this application, basement rock position, magmalic intrusions, low rezistivity zones, structure and stratigraphy of the mentioned area have beeen determined and also reservoir lias beeen identified from geoelectric maps. Key words : Geothermal areas, Geophysical methods, Yozgat-Sarayken
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
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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