1,720,966 research outputs found
Ground improvement methods and well-point method in lowering ground water level and evaluation of applicability in Kırıkkale
No full textÖZET ZEMİN İYİLEŞTİRME YÖNTEMLERİ VE YERALTI SU SEVİYESİNİN DÜŞÜRÜLMESİNDE WELL-POINT METODUNUN KIRIKKALE İLİNDE UYGULANABİLİRLİĞİNİN DEĞERLENDİRİLMESİ TOPRAK, Baran Kırıkkale Üniversitesi Fen Bilimleri Enstitüsü inşaat Anabilim Dalı, Yüksek Lisans Tezi Danışman: Prof. Dr. Mustafa Yılmaz KILINÇ Ocak 2005, 91 sayfa Yapıların, statik ve dinamik etkilere dayanımı, bir mühendislik esasıdır. Çerçeve sistemlerinin, kuvvetlere karşı güvenliliği, yapı ömrü açısından, tek başına yeterli değildir. Yapı-zemin etkileşiminin iyi analiz edilmediği hallerde, asıl yıkıcı etkinin zeminden kaynaklandığı, deprem kuşağındaki ülkemizde bir gerçektir. Bu tez çalışmasında, zemin iyileştirme yöntemlerinin amacı uygulanış şekilleri incelenmiş, zemin iyileştirme yöntemlerinden, well-point sistemi irdelenmiştir. 2000-2004 yılları arasında Kırıkkale ilinde yapılmış olan zemin etüt çalışmalarının bir çoğu tablo haline getirilmiştir. Bu veriler mahalleleregöre ayrılmış, bu verilerin doğrultusunda well-point sistemiyle zemin iyileştirme önerileri yapılmıştır. ANAHTAR KELİMELER: Well-point sistemi, Yer Altı Su Seviyesi, Zemin İyileştirme Yöntemleri, Kırıkkale ııABSTRACT GROUND IMPROVEMENT METHODS AND WELL-POINT METHOD IN LOWERING GROUND WATER LEVEL AND EVALUATION OF APPLICABILITY IN KIRIKKALE TOPRAK, Baran Kırıkkale University Institute of Science and Technology Department of Civil Eng., M. Sc. Thesis Advisor: Prof. Dr. Mustafa Yılmaz KILINÇ January 2005, 91 pages Stuructural stability and safety against static and dynamic forces is a basic principle of construction engineering. Safety against forces on frame systems, is not only enough for building life. In a condition of not well analysed, if the interaction between construction and ground, serious problems affecting stuructural stability and safety may occur, especially in earthquake zones inculuding our country. In this thesis; aim and application of common ground treatment methods and well-point systems were investigated. Number of the ground investigations made between 2000 and 2004 years, in Kırıkkale city, made as mcharts. This datas listed by.quarters and ground treatment suggestions by well-point method were made. KEY WORDS: Well-point System, Ground Water Level, Ground Treatment Methods, Kırıkkale i
Evaluation of vertical bearing capacity performance in piles with elastic pile cap
No full textFen Bilimleri Enstitüsü, İnşaat Mühendisliği Ana Bilim DalıGeleneksel kazıklı temellerde, yapının ağırlığı büyük oranda kazıklar tarafından karşılanır, kazıklar aldıkları üst yapı yükünü daha derinlere doğru jeolojik ortama aktarırken sürtünme ve uç dirençleriyle de seçilen güvenlik katsayısı mertebesinde statik denge sağlanmış olur; çoğu durumda da zemin özellikle de kazık başlığının altındaki zemin kazıklara nazaran çok daha az yüke maruz kalır. Bunun nedeni kazık elemanların (örneğin betonarme kazıklar, çelik kazıklar vb.) zeminlere göre çok daha rijit olmaları ve yükü doğrudan karşılamalarıdır. Kazık başlığının hemen altındaki ve daha derine doğru devam eden zemin tabakaları ancak kendisinden çok daha rijit olan kazıkların düşey doğrultuda belli miktarda deplasman yapmaları neticesinde yük almaya başlarlar. Ancak kazıklar çok düşük deplasman mertebelerinde tasarlandığından zeminlere aktarılan üst yapı yükleri de görece daha az olur. Bu çalışmada zeminin kendisinin bu sistemler üzerindeki olumlu etkisini arttırmak, örneğin kazıklar için hesaplanmış küçük deplasman aralığına rağmen zeminin olabildiğince yük almasını ve kazıkları çevreleyen efektif gerilmenin arttırılmasını sağlamak amacıyla "elastik kazık başlığı" düşünülmüştür. Elastik kazık başlığının amacı, radye-kazık ara yüzeyi arasında kolaylıkla yer değiştirebilecek bir eleman tanımlamak, radyenin uygulanan yükle bir miktar düşey deplasman yapmasını sağlayarak zeminin olabildiğince yük almasına imkân tanımaktır. Aynı zamanda yine bu çalışmada geliştirilen elastik kazık başlığı elemanları içeren bir kazıklı temelin sismik etkilerle birlikte nasıl davrandığı ve sonuçları da incelenmiştir.In conventional pile foundations, the weight of the structure is largely borne by the piles, in contrast the piles transfer the superstructure load they receive to the geological environment deeper down, static balance is achieved within the selected safety coefficient level with friction and tip resistances; in most cases, the soil, especially the soil under the pile cap, is subjected to much less load than the piles. This is because the pile elements (e.g. reinforced concrete piles, steel piles, etc.) are much more rigid than the ground and directly support the load. The soil layers immediately below the pile cap and continuing deeper begin to receive load only due to the piles, which are much more rigid, making a certain amount of displacement in the vertical direction. However, since the piles are designed at deficent displacement levels, the superstructure loads transferred to the soils are also relatively less. In this study, to increase the positive effect of the soil itself on these systems, for example, to ensure that the soil takes as much load as possible despite the small displacement range calculated for the piles and to increase the effective stress surrounding the piles, the "elastic pile cap" was considered. The purpose of the elastic pile cap is to define an element that can easily be displaced between the raft-pile interface, to allow the raft to make a certain amount of vertical displacement with the applied load and to allow the soil to take as much load as possible. At the same time, how a pile foundation containing elastic pile cap elements developed in this study behaves with seismic effects and its results are also examined
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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