1,724,478 research outputs found
Optimal Control of DTMB 5415 Combatant Roll Motion with Active Fins
No full text© 2020 IEEE.This paper examines control of roll motion of the TDMB 5415 Combatant Warship. For controlling the roll motion, Linear Matrix Inequality (LMI) Based State-Feedback Optimal Control is used with Active Roll Fin Stabilizer (ARFS) structures. The mathematical model of the roll motion of the DTMB 5415 Combatant Warship has been developed by references of studies in the literature. Especially, the parameters of the damping term in the equation of the roll motion have been included in the equation by comparing experimental and numerical studies in the literature. In order to provide the required control moment, the suitable ARFS section has been selected and the blade structure has been designed. This paper aims to be a source in the literature in terms of providing a good roll amplitude damping ratio as well as being a full-scope study example in terms of the roll motion of the DTMB 5415 Combatant Warship
Associations Between Serum Potassium and Fasting Glucose, by Ethnicity (N = 5415).
No full textAssociations Between Serum Potassium and Fasting Glucose, by Ethnicity (N = 5415).</p
Baseline Characteristics of Study Population (N = 5415), by Serum K (mmol/L).
No full textBaseline Characteristics of Study Population (N = 5415), by Serum K (mmol/L).</p
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
Associations Between Serum Potassium and Incident Diabetes, by Ethnicity (N = 5415).
No full textAssociations Between Serum Potassium and Incident Diabetes, by Ethnicity (N = 5415).</p
Associations Between Dietary Potassium (mg/day) and Incident Diabetes, by Ethnicity (N = 5415).
No full textAssociations Between Dietary Potassium (mg/day) and Incident Diabetes, by Ethnicity (N = 5415).</p
Urans Computations of a DTMB 5415
Get PDFThis paper presents the results of the computations performed in the Canal de Ensayos Hidrodinámicos de ETSI Navales (CEHINAV) for the US Navy Combatant DTMB 5415 [Larsson et al. 2003] at model scale with the URANS free surface commercial solver StarCCM+. In this context we focused on the results required to complete the case 3.1a. In this situation the bare hull ship is fixed in a specified position and sails in still water. These computational results are validated against experimental data [Olivieri et al. 2001] in terms of various global and local quantities
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
- …
