• 영어영문학
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• 제58권4호
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• pp.589-609
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• 2012

This research compares a future society described in Ray Bradbury's Fahrenheit 451 (1953) to modern technopoly. The main protagonist of the novel, Guy Montag, is a fireman who burns books in a future society which does not allow people to read or own books. The future society which controls the expansion of knowledge is similar to technopoly which Neil Postman defines as a culture where people passively react to overflow of information. Bradbury compares Montag to several characters, such as his wife Mildred and Captain Beatty. With this comparison, Bradbury lets his readers look back themselves who live in a sea of information without being aware of the domination of technopoly. This research suggests that the reason people do not know that knowledge is controlled and limited is because they do not distinguish between knowledge and information. They misunderstand widely available information is knowledge as characters in Fahrenheit 451 feel stuffed with information. Since the 1990s, scholars and writers such as Neil Postman and Nicholas Carr have expressed problems with the excess of information, however Bradbury already predicted through Fahrenheit 451 in 1953 that the development of technology does not mean a higher level of knowledge. This research suggests what modern human beings have lost in vast amount of information rather than what they have gained.

• Tribology and Lubricants
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• 제35권6호
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• pp.337-342
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• 2019

This paper presents an experimental investigation of friction and wear characteristic with respect to patterns occurring on the surface of 3D printed polymer products by fused deposition modeling method. The purpose of this study was to investigate the effect of the patterns and sliding directions on the tribological properties of 3D printed polymer surface. A cubic specimen was printed using polylactic acid filament as the printing material. Friction tests were conducted for different directions with respect to the patterns that were generated on the top and the side surfaces of the specimen, by using a ball-on-reciprocating type tribotester. SUJ2 bearing ball of which the diameter was 11 times greater than the width of the largest pattern was used as the counter surface to assess the frictional behavior. Friction tests were conducted on the top and the side surfaces with respect to the patterns in 3 (0°, 45°, 90°) different directions respectively. Coefficient of friction increased as cycles increased in all cases. The results of the tests showed that the lowest coefficient of friction was measured with the 45° sliding direction on the side surface. The wear rate was the lowest at 45° sliding direction on the side surface, while it was the highest at 0° sliding direction on the top surface. Coefficient of friction of about 0.45 was determined to be the converging value on the top compared to the side surface.