1,721,042 research outputs found
Kinetostatic characterization of a loading system based on a partially-decoupled parallel manipulator
No full textThe paper deals with the kinetostatic characterization of a knee
loading test-rig with cable-driven parallel mechanism architecture. The system is
supposed to work close to a nominal pose where it shows a partially-decoupled
behavior. The scope of the study is the determination of the maximum deviations
between the wrench components at the nominal and actual platform pose
for a generic loading condition. Moreover, the peculiar cable-based actuation
system leads to non-linearity issues: a specific procedure is then presented to
perform the kinetostatic analysis and to handle such non-linearities
UPPER LIMB JOINT MOMENT ESTIMATION FOR ERGONOMICS EVALUATION IN REAL-TIME
No full textOur goal is to measure and estimate both the posture and the load of the human joints in real-time using a system of 17 IMUs for a fast and objective evaluation of risk factors. The forces exerted on the hands are known and needed to estimate the joint moment using a Newton-Euler approach. The method is tested using a commercial collaborative robot and the results are compared through a validated multibody software (Anybody Modelling System (AMS), AnyBody Technology, Alborg, Denmark), providing complete and detailed musculoskeletal models to quantify human motion and joint loads
LAPAROSCOPIC SURGICAL INSTRUMENT
No full textThe present invention relates to a laparoscopic surgical instrument. More particularly,
the invention deals with a hand-held instrument equipped with a highly dexterous
extremity, making the execution of very precise surgical intervention as in the robotic
system while keeping very low costs as for all the hand-held surgical instrument. The
present invention relates also to a kit comprising said laparoscopic surgical instrument
and an instrument holder (e.g. a trocar) for the insertion of said instrument through an
incision into a patient cavity
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
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