1,721,216 research outputs found
Título: De Incarnatione
No full textColofónSign.: [calderón]-2[calderón]\p6\s, 3[calderón]\p1\s, A-Z\p6\s, 2A-2Z\p6\s, 3A-3C\p6\s, 3D\p3\sTexto a dos colPort. grab. calc. arquitectónic
Cursus theologici in secundam secundae divi Thomae : tomus unicus
No full textSign.: [calderón]\p6\s, 2[calderón]\p8\s, 2Z\p3-6\s, 3A-3T\p6\s, A-Z\p6\s, 2A-2X\p6\s 2Y\p4\sPort. con esc. de la Orden de PredicadoresTexto a dos colPort. con grab. xi
60º Aniversario Instituto Nacional de Tecnología Agropecuaria 1956-2016
No full textDel peón de campo al biotecnólogo, del tractorista al director de experimental, hay un denominador
común que atraviesa cualquier escalafón: la pasión por pertenecer al INTA. De ese sentimiento
tan arraigado como inexplicable se nutre la mística que, en ya sesenta años de vida
institucional, hermana a todos los miembros de este organismo con un compromiso orgulloso,
fiel, inquebrantable.
Hoy, con sesenta años recién cumplidos, el INTA mantiene intacto ese espíritu de entrega al servicio
público, el cual se pone de manifiesto en cada una de las más de setenta entrevistas realizadas
para la confección de este libro.Fil: Ramirez, Diego. El Enfiteuta.Com; Argentin
Shock isolation using switchable stiffness
No full textThis study investigates a novel stiffness control strategy applied to the problem of
shock isolation. This is based on the principle that the stiffness and mass are the
principal physical properties that control the passive system shock response.
The problem of shock response control is divided in two stages. Firstly, the maximum
response whilst a shock is applied is considered, and the effectiveness of a switchable
isolation stiffness strategy is evaluated. This strategy aims to reduce the shock
response by switching the stiffness to a low value during the shock input. Two
different models are considered for the theoretical analysis, namely, a single mass
supported by two elastic elements one of which can be disconnected, and a second
model where the switchable element comprises a secondary mass-stiffness system.
The performance of the two strategies is analyzed in terms of response parameters
such as the absolute and relative displacement and absolute acceleration. The single
degree-of-freedom system is considered as a benchmark for comparison.
The issue of residual vibration suppression is then presented. For the latter a different
switchable stiffness strategy is identified, and the analysis is mainly concerned with
the energy dissipation mechanism used to suppress residual vibration. As in the first
stage of shock isolation, two models are considered. Optimum configurations and
stiffness changes are identified for both the shock response reduction and the decay of
the residual vibration. The effect of viscous damping is subsequently incorporated.
The practical implementation and experimental validation is then presented and a
experimental system is developed. It is based on a conceptual model comprising a
magnetic suspension element that is able to change its effective stiffness by altering
the magnetic force. This novel configuration has the advantages of achieving a high
stiffness change in a very short amount of time and with very low damping, which is
required to validate the theoretical studies. The design and properties of the model are
discussed and then both stiffness strategies are implemented. This model is used to
show the feasibility and evaluate the isolation performance of the different switchable
stiffness strategies and the issues and limitations of the implementation
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
Theoretical analysis and experimental validation of a switchable stiffness system for shock isolation
No full textON THE RESPONSE OF SDOF RATE-INDEPENDENT HYSTERETIC MECHANICAL SYSTEMS SUBJECTED TO SHOCK EXCITATION
No full textAppropriate 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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