1,720,953 research outputs found
Fabrication and analysis of 4H-SiC MOS Capacitor with High-k Gate Dielectrics:ZrO2,Y2O3
No full text本論文製作兩種金氧半電容元件，基板使用4H-SiC，氧化層使用ZrO2和Y2O3為閘極氧化層，等效於SiO2厚度為10nm，閘極使用鋁閘極，我們使用四種不同的溫度條件，基板在常溫下和基板加熱200℃及沒有退火和快速熱退火溫度500℃的組合。可以得到四種溫度環境。基板室溫加不退火；基板不加熱加退火溫度500℃；基板加熱200℃加不退火，基板加熱200℃加退火溫度500℃。
可以得到漏電流關係在Y2O3基板不加熱、不退火，電場強度為1MV/cm是10-1A/cm2，在基板加熱200℃、不退火，電場強度為1MV/cm時，漏電流為10-3A/cm2，基板不加熱、快速熱退火溫度500℃或加熱基板200℃、快速熱退火溫度500℃，電場強度為1MV/cm時，漏電流密度都是10-6A/cm2。ZrO2基板不加熱、沒有退火，電場強度為1MV/cm時，漏電流密度是10-1A/cm2，在基板加熱200℃、不退火，電場強度為1MV/cm時，漏電流密度為10-3A/cm2，基板不加熱或基板加熱200℃、快速熱退火溫度皆為500℃，電場強度為1MV/cm時，漏電流密度都是10-7A/cm2，至於C-V量測方面，在兩種薄膜的電容情況，平帶電壓有的偏移現象，可能是濺鍍造成過多的氧化層電荷在氧化層中堆積，形成偏移，但經由快速熱退火製程有達到減少氧化層電荷的作用。In this research, we design two kinds of MOS-Capacitors with ZrO2 and Y2O3 as the insulators. (Equivalent Oxide Thickness, EOT) EOT is 10nm.Therefore, ZrO2 and Y2O3 were deposited on substrates at different substrate temperature (room temperature and 200℃) and then (Rapid Thermal annealing, RTA) at 500℃.We can get four kinds of temperature conditions. Condition1：Tsubtrate is room temperature, and Tannealing is room temperature. Condition2：Tsubtrate is room temperature, and Tannealing is 500℃.Condition3：Tsubtrate is 200℃. and Tannealing is room temperature.Condition4：Tsubtrate is 200℃,and Tannealing is 500℃.
We report the C-V, I-V electrical measurement results of MOS capacitors using Y2O3 thin film deposited by RF sputtering. The leakage current density is about 10-3A/cm2 at 0.5MV/cm in condition 1.The leakage current density is about 10-3A/cm2 at 1MV/cm in condition 2.The leakage current density is about 10-3A/cm2 at 1.5MV/cm in condition 3.The leakage current density is about 10-3A/cm2 at 1.6MV/cm in condition 4.ZrO2 thin film deposited by RF sputtering. The leakage current density is about 10-3A/cm2 at 0.5MV/cm in condition 1. The leakage current density is about 10-3A/cm2 at 1MV/cm in condition 2. The leakage current density is about 10-3A/cm2 at 0.8MV/cm in condition 3. The leakage current density at 1MV/cm is about 10-3A/cm2 at 2.7MV/cm in condition 3, and condition 4.
According to the results, the ZrO2 thin film is better than Y2O3 for the leakage current. the C-V measurement result of MOS capacitors using Y2O3 and MOS capacitors using ZrO2，the flat band voltage is shift. The possible reason is more fixed oxide charge and mobile ion charge in oxide layer. We have reduced charge in oxide layer by RTA process
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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