Tropes of Desire

10.1093/oso/9780190843816.003.0005 ◽

2018 ◽

Author(s):

Lloyd Whitesell

Keyword(s):

This chapter investigates how sound and image can be styled to create allure, encouraging particular frames of mind in the viewer. Three such frames are important to glamour’s effect: first, fetishism or captive attention, which involves a fascination with display, senses captivated by a material surface that offers itself up to extended enjoyment; second, the transfiguration of the everyday, through presenting images of impossible beauty and desirability but also through weaving fantasies of escape and transformation; and third, the preservation of distance between spectators and the object of their fascination, using devices such as restraint and remoteness. Finally, anticonsumerist critiques of glamour are evaluated alongside counterarguments upholding glamour’s transformative and sustaining potential.

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Suppression of γ’ Precipitation in a Laser-Melted Nickel-Base Alloy

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100078870 ◽

1977 ◽

Vol 35 ◽

pp. 270-271

Author(s):

J. M. Walsh ◽

J. C. Whittles ◽

B. H. Kear ◽

E. M. Breinan

Keyword(s):

Cooling Rate ◽

Base Alloy ◽

Material Surface ◽

Intimate Contact ◽

Absorbed Power ◽

Perfect Contact ◽

Nickel Base ◽

Rapidly Solidified ◽

Limiting Case ◽

The Heat Transfer Coefficient

Conventionally cast γ’ precipitation hardened nickel-base superalloys possess well-defined dendritic structures and normally exhibit pronounced segregation. Splat quenched, or rapidly solidified alloys, on the other hand, show little or no evidence for phase decomposition and markedly reduced segregation. In what follows, it is shown that comparable results have been obtained in superalloys processed by the LASERGLAZE™ method.In laser glazing, a sharply focused laser beam is traversed across the material surface at a rate that induces surface localized melting, while avoiding significant surface vaporization. Under these conditions, computations of the average cooling rate can be made with confidence, since intimate contact between the melt and the self-substrate ensures that the heat transfer coefficient is reproducibly constant (h=∞ for perfect contact) in contrast to the variable h characteristic of splat quenching. Results of such computations for pure nickel are presented in Fig. 1, which shows that there is a maximum cooling rate for a given absorbed power density, corresponding to the limiting case in which melt depth approaches zero.

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Microstructures of Laser Processed Fe-Cr Surface Alloys

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100098150 ◽

1981 ◽

Vol 39 ◽

pp. 328-329

Author(s):

P. A. Molian ◽

K. H. Khan ◽

W. E. Wood

Keyword(s):

Cooling Rate ◽

Pure Iron ◽

Continuous Wave ◽

Laser Surface ◽

Material Surface ◽

Constitution Diagram ◽

Incident Power ◽

Surface Alloying ◽

Laser Surface Alloying ◽

Spot Diameter

In recent years, the effects of chromium on the transformation characteristics of pure iron and the structures produced thereby have been extensively studied as a function of cooling rate. In this paper, we present TEM observations made on specimens of Fe-10% Cr and Fe-20% Cr alloys produced through laser surface alloying process with an estimated cooling rate of 8.8 x 104°C/sec. These two chromium levels were selected in order to study their phase transformation characteristics which are dissimilar in the two cases as predicted by the constitution diagram. Pure iron (C<0.01%, Si<0.01%, Mn<0.01%, S=0.003%, P=0.008%) was electrodeposited with chromium to the thicknesses of 40 and 70μm and then vacuum degassed at 400°F to remove the hydrogen formed during electroplating. Laser surface alloying of chromium into the iron substrate was then performed employing a continuous wave CO2 laser operated at an incident power of 1200 watts. The laser beam, defocussed to a spot diameter of 0.25mm, scanned the material surface at a rate of 30mm/sec, (70 ipm).

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Video Games and Emotion Regulation

GeroPsych ◽

10.1024/1662-9647/a000196 ◽

2018 ◽

Vol 31 (4) ◽

pp. 205-213 ◽

Cited By ~ 1

Author(s):

Kathryn L. Ossenfort ◽

Derek M. Isaacowitz

Keyword(s):

Older Adults ◽

Emotion Regulation ◽

Video Games ◽

Age Differences ◽

Interactive Media ◽

Age Groups ◽

Younger Adults ◽

Media Usage ◽

The Everyday ◽

Media Preferences

Abstract. Research on age differences in media usage has shown that older adults are more likely than younger adults to select positive emotional content. Research on emotional aging has examined whether older adults also seek out positivity in the everyday situations they choose, resulting so far in mixed results. We investigated the emotional choices of different age groups using video games as a more interactive type of affect-laden stimuli. Participants made multiple selections from a group of positive and negative games. Results showed that older adults selected the more positive games, but also reported feeling worse after playing them. Results supplement the literature on positivity in situation selection as well as on older adults’ interactive media preferences.

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