1,726,222 research outputs found
Southern Pacific (SP) 4340
No full textA photograph print showing the Southern Pacific (SP) 4340, 4-8-2, (MT-3), on passenger train at Berkeley, CA
History 4340 Spring 2012 Syllabus
No full textThe spring syllabus for History 4340: Byzantium and the West
LATENT HEAT (DARK SUN #4340)
No full textMayumi Lake LATENT HEAT (DARK SUN #4340), 2014Pigment print, 24 x 36 in.https://via.library.depaul.edu/oral_his_gallery/1348/thumbnail.jp
Application of a new Power Equivalent model in induction hardening of steel AISI-4340
Get PDFUtilizzo di un nuovo modello di potenza equivalente nel processo di riscaldamento ad induzione per la tempra ad induzione. Modificando la curva BH dell'acciaio AISI-4340, è possibile ottenere una buona accuratezza delle potenza dissipata considerando solo la prima armonica in una simulazione nel dominio delle frequenze. Ciò comporta numerosi vantaggi soprattutto legati al costo computazionale ed alla previsione dello spessore di temrpa. Le simulazioni sono confrontate con dati sperimentali.ope
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
4340 çeliğinin kırılma ve yorulma özelliklerinin incelenmesi.
Get PDFIn this study both the characteristic and mechanical properties of received modified AISI 4340 steel -generally used in aeronautical and defense applications- has been examined. Mode I Fracture toughness (KIC) tests have been conducted with two different directional specimens of RL and LR. Fatigue crack growth behaviors of directional specimens are compared and discussed at three different positive stress ratios (R) which are 0.1, 0.3 and 0.5 under constant amplitude loading. Walker equation is used to perform fatigue life calculations and the evaluation of test results for tensile loading. On the next step, the modified steel specimens are subjected to fully reversed stress cycle (R= -1) and the Paris-Erdogan law has been applied to all achieved data. The difference in the production of modified AISI 4340 steel (M4340) steps are correlated with the results and compared with commercial AISI 4340 steel theoretical information. The obtained measurements show that the M4340 steel has higher hardness and toughness compared to standard AISI 4340 steel.M.S. - Master of Scienc
Determination of fracture and fatigue behaviours of 4340 steel
No full textIn this study both the characteristic and mechanical properties of received modified AISI 4340 steel -generally used in aeronautical and defense applications- has been examined. Mode I Fracture toughness (KIC) tests have been conducted with two different directional specimens of RL and LR. Fatigue crack growth behaviors of directional specimens are compared and discussed at three different positive stress ratios (R) which are 0.1, 0.3 and 0.5 under constant amplitude loading. Walker equation is used to perform fatigue life calculations and the evaluation of test results for tensile loading. On the next step, the modified steel specimens are subjected to fully reversed stress cycle (R= -1) and the Paris-Erdogan law has been applied to all achieved data. The difference in the production of modified AISI 4340 steel (M4340) steps are correlated with the results and compared with commercial AISI 4340 steel theoretical information. The obtained measurements show that the M4340 steel has higher hardness and toughness compared to standard AISI 4340 steel
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
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