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Faust, erster Theil / S. Schneider
Full text linkFAUST, ERSTER THEIL / S. SCHNEIDER
Faust, erster Theil / S. Schneider (1)
Illustrationen: Faust, erster Theil (1
SpacE Exploration and Development Systems (SEEDS): Preparing European Experts for the Future Space Exploration
No full textThe SEEDS Initiative, originated from the Politecnico di Torino with the support of Alenia Spazio, is aimed at establishing an International Master Course focussed on Space Exploration and Development Systems, to offer an opportunity for young engineers to get prepared for the next future of Europe in Space.
The SEEDS Project has been shared with SUPAERO Toulouse in France and with Universität Bremen (together with ZARM) in Germany. The three European Towns (namely Torino, Toulouse and Bremen) have a long common tradition of
Space Activities at industrial and academic level and constitute three poles of the European cooperation in space, representing the three Leading Nations involved in the European Space Programmes
The first year of activity started in November 2005, with a Plenary Opening which took place at the ESA-ERASMUS Centre, Noordwijk, with the full support of the Human Space-Flight Microgravity and Exploration Directorate of ESA.
The objectives, the structure and the organization of the Master are described in some detail, providing information on the Technical Courses, to take place in parallel at the three locations, covering the basic disciplines divided in two groups:
Understating Space and Learning about Space Systems.
The key distinguishing feature of the SEEDS Master, in addition to its internationality, is the Joint Project Work, planned to take place over a period of about nine months in Toulouse – Bremen – Torino, with the involvement of all the students who will be engaged, for three periods of about three months each, in the study and preliminary design of an Exploration Architecture, covering the Robotic, the Transportation and the Human aspects respectively. The experience of the first year of activity and the plans for the next coming years are also presented and discussed
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Experimental Setup and Tests’ Results for Uncooperative Objects Capture and Manoeuvring with Robotic Arm
Full text linkNonlinear Control for Proximity Operations Based on Differential Algebra
Full text linkA new algorithm based on differential algebra (DA) is proposed to obtain a high order Taylor expansion of State-Dependent Riccati Equation (SDRE) solution. The main advantage of this approach is that the sub-optimal solution of a class of non-linear optimal control problem, characterized by a quadratic cost function and an input-affine plant model, is obtained by a mere evaluation of a polynomial expression, reducing the computational
effort due to well-known algorithm for the SDRE solution. Relative position tracking and attitude synchronization problem involving in docking maneuvering operations between two Earth satellites is investigated. Particularly, two possible docking scenarios are simulated by using a specific platform designed by DLR (Deutsches Zentrum für Luft- und Raumfahrt) Institute of Space Systems to emulate the satellite motion on ground. The experiments show the effectiveness of proposed DA-based algorithm and the potential computational benefit when it runs on a real hardware
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
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