86,520 research outputs found
Repairing of an engine block through the cold gas dynamic spray technology
No full textIn the modern automotive industry, the maintenance of the vehicle during its life cycle is increasing
in importance due to both economical and environmental considerations. A new frontier is the reparation
of large parts, originally made by fusion, by the addition of material. The standard technique in the
field is the use of TIG welding, but in the last few years Cold Dynamic Gas Spray (CDGS) has started
to show many promises in supplanting TIG repairs. The main advantage of CDGS is the absence of
thermal stresses in the repaired zone with the elimination of thermal distension treatment of the part.
In this paper we study the use of CDGS to repair wear damage on a commercial aluminium engine
block in comparison with the standard repair procedure with TIG. The result obtained shows that
CDGS is an effective technology for industrial-level repair
A New Algorithm to Assess Revolute Surfaces Through Theory of Surface Continuous Symmetry
No full textA New Algorithm to Assess Revolute Surfaces Through Theory of Surface Continuous Symmetry
No full textSelected Conference Papers from the 9th CIRP International Seminar on Computer-Aided Tolerancing, held at Arizona State University, Tempe, Arizona, USA, 10-12 April, 2005
Theoretical analysis of a friction stir welded panel in comparison with the baseline version
No full textThe use of Friction Stir Welding (FSW) in the aerospace industry is a promising technology that could allow the increased automation of the process with consequent reduction of the overall costs. This paper will study four different options for the application of FSW to the upper panel of the aileron for the C27J cargo plane. A theoretical analysis of four different configurations will show the dramatic reductions of costs related to the use of FSW instead of riveting and the possible advantages in terms of weight reductions connected to it
Variations on the Author
No full text“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
[Newspaper Clipping: Author Claims Evidence of Second JFK Assassin #1]
No full textNewspaper article titled "Author Claims Evidence of Second JFK Assassin." The article states that author Richard J. Whalen concluded "that there is circumstantial evidence to support the theory of a second assassin in the shooting of President John F. Kennedy.
Also By The Same Author: AKTiveAuthor, a Citation Graph Approach to Name Disambiguation
No full textThe desire for definitive data and the semantic web drive for inference over heterogeneous data sources requires co-reference resolution to be performed on those data. In particular, name disambiguation is required to allow accurate publication lists, citation counts and impact measures to be determined. This paper describes a graph-based approach to author disambiguation on large-scale citation networks. Using self-citation, co-authorship and document source analyses, AKTiveAuthor clusters papers, achieving precision of 0.997 and recall of 0.818 over a test group of eight surname clusters
John F. Kennedy telegram to Roosevelt
No full textJersey Homesteads (later the Borough of Roosevelt) was established in the 1930s as an agro-industrial cooperative community. It was established specifically for urban Jewish garment workers, many of whom had emigrated from Europe. President John F. Kennedy sent a telegram to the citizens of Roosevelt, New Jersey, apologizing for not being able to attend the memorial dedication in honor of former President Franklin Delano Roosevelt. (Jersey Homesteads became Roosevelt in 1945 in honor of the president.) President Kennedy expressed his gratitude to the people of Roosevelt for constructing the memorial, and commented that it will serve as a constant reminder of Roosevelt's good works
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