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A Daily Surface Drainage Simulation Model for Irrigation Districts Consisting of Paddy and Protected Cultivation
Get PDF학위논문 (석사)-- 서울대학교 대학원 : 생태조경.지역시스템공학부(지역시스템공학전공), 2013. 2. 강문성.관개지구의 배수량은 유역의 물 수급 전망, 하천 유황의 예측, 농업비점오염 부하량 추정 등 유역 수자원 관리에 있어서 중요한 요소이다. 본 연구의 목적은 수리시설물, 논, 시설재배지, 용배수로로 구성되는 복합영농 관개지구를 대상으로 시험지구를 선정하여 수문 모니터링을 수행하고, 복합영농 관개지구 일별 배수량 모의 모형을 개발하여 적용성을 평가하고, 관개지구의 총 배수량을 추정하는 데 있다.
복합영농 관개지구 배수량 모의 모형은 농업용수 공급량 부모형과 논 광역 배수량 부모형, 시설재배지 유출량 부모형으로 구성되어 있으며, 관개지구의 말단에서 용수로 배수량, 논 포장 배수량, 시설재배지 유출량을 구분하여 총 배수량을 일별로 추정한다.
농업용수 공급량 부모형에서 농업용수 공급량은 영농시기를 고려하여 모의한 필요수량과 시설관리 손실률로부터 산정하였으며, 논 광역 배수량 부모형의 입력자료로 이용한다. 논 광역 배수량 부모형에서 포장 배수량은 논의 물수지식으로부터 계산한 담수심과 물꼬높이의 차로부터 산정하였고, 용수로 배수량은 농업용수 공급량 중의 비율로 모의하였다. 시설재배지 유출량은 NRCS (Natural Resources Conservation Service) 유출곡선법으로 모의하였다. 시험지구는 경기도 이동저수지 관개지구를 선정하였다.
시험지구의 농업용수 공급량을 모의하기 위하여 실측 순별 공급량과 모의 순별 필요수량을 회귀분석하여 이동저수지의 시설관리 손실률을 추정하였고, 검정을 하여 적용성을 평가하였다. 논 광역 배수량 모형은 단순시행착오법을 이용하여 보정하였으며, 시험지구의 일 배수량 자료로부터 모형을 검정한 결과는 실측치의 경향을 잘 반영하였다.
복합영농 관개지구 일별 배수량 모의 모형을 논 우점 관개지구와 시설재배지 우점 관개지구에 적용하였으며, 시설재배지의 면적이 증가하는 경우 관개지구의 배수량이 증가하는 것으로 나타났다. 또한, 이동저수지 관개지구에 적용하여 물수지 분석을 수행하여 적용성을 평가하였다. 본 연구에서 개발한 모형은 논과 시설재배지로 구성되는 관개지구의 배수량을 추정하여 이를 합리적으로 평가 관리하는 데 이용 가능할 것이다.국 문 초 록 Ⅲ
목 차 Ⅴ
List of Tables Ⅶ
List of Figures Ⅷ
제 1 장 서 론 1
제 2 장 연 구 사 4
2.1 농업용수 공급량 해석 4
2.2 관개지구 배수량 해석 6
제 3 장 복합영농 관개지구 배수량 모의 모형의 개발 9
3.1 복합영농 관개지구 배수량 모의 모형 9
3.2 농업용수 공급량 모형 12
3.3 논 광역 배수량 모형 14
3.3.1 포장 배수량 15
3.3.2 용수로 배수량 19
3.4 시설재배지 유출량 모형 21
제 4 장 대상지구 및 자료구축 23
4.1 대상지구 선정 23
4.2 기상자료 24
4.3 저수지 농업용수 공급량 26
4.4 광역 논 수문 모니터링 29
4.5 영농현황 38
제 5 장 복합영농 관개지구 배수량 모의 모형의 적용 39
5.1 농업용수 공급량 모형의 적용 39
5.1.1 시설관리 손실률 추정 39
5.1.2 저수지 농업용수 공급량 추정 41
5.2 논 광역 배수량 모형의 적용 43
5.2.1 모형의 보정 44
5.2.2 모형의 검정 48
5.3 시설재배지 유출량 모형의 적용 50
5.4 복합영농 관개지구 수문 분석 51
5.4.1 시설재배지 면적 변화에 따른 배수량 변화 분석 51
5.4.2 복합영농 관개지구 물수지 55
제 6 장 요약 및 결론 57
References 60
Abstract 64Maste
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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