Yellow over black: the precolonial and colonial history of race in Korea, 1883-1945

This dissertation discloses that anti-Blackness and other deeply held notions of race in precolonial and colonial Korea (1883-1945) were pivotal in how Koreans made sense of their vulnerability and, later, subjection to colonization and of their supposed "temporary" backwardness on the path to civilization as well as independence. First, during the precolonial period (1883-1910), Koreans constructed imagined racial inferiors, especially Blacks and American Indians, without their corporeal presence, and in doing so centrally shaped Korean racial identity from its beginning. By proposing the concept of the colonially vulnerable to call attention to the positions and outlooks of peoples and states that were susceptible to foreign rule in the age of empire, as well as drawing on the insights of W.E.B. Du Bois, this dissertation thereby reveals how Koreans rendered Blacks and American Indians peoples without history, along with the subsequent relation to racial slavery and its afterlife. Second, under the militaristic rules (1910–1919) of the Japanese Empire, in contrast to the assumption that race was not significant in colonial Korea due to racial akin-ness between the colonizer and the colonized, the Japanese colonial regime was forced to embrace the racial similarity discourse, risking their imagined superiority, and to criticize anti-Blackness in the United States in order to establish the colonial legitimacy over the pro-U.S. sentiment of the colonized leading back to the precolonial period. Meanwhile, though colonization put Koreans on the same footing as their imagined racial inferiors who were destined to be enslaved or extinct per their imagined construction, Koreans’ anti-Blackness and racial hierarchy persisted as revealed, for instance, in the unnoticed racial subtext of the Declaration of Independence. Third, even though colonial Korea under the cultural rules (1919–1937) has often been regarded as a period of discursive shift since anti-racism discourse seemed to prevail on the surface, this dissertation further reveals that the period should be examined through the "deep schemas" of racism even without racial contestations and policies. As opposed to shallow anti-racism ideology, the deep schemas of anti-Blackness and racial hierarchy were transposed into different extra-racial schemas. From the most controversial discourse of national reconstruction to aspects of everyday life such as intimate desire and intra-Korean relationships, these schemas of anti-Blackness provided Koreans with the guidelines for perceiving and interacting with their perceived racial inferiors, especially Blacks, as well as the symbolic inferiority of Blackness. Fourth, during the wartime empire (1937-1945) which has often been characterized by the "polite racism" of the Japanese Empire mainly due to the wartime needs and the tenet of the Greater East Asian Co-Prosperity Sphere against white supremacy, Koreans, who would have internalized the colonial tenet, persistently relied on anti-Blackness. Furthermore, though the current racism against Southeast Asians in South Korea has been considered as something new independent of anti-Blackness, this dissertation further reveals how anti-Blackness in colonial Korea was transposed into racism against Southeast Asians as the Japanese Empire annexed the region by demonstrating how their imagined backwardness was constructed vis-à-vis that of Blacks by Koreans. Finally, this dissertation concludes with several post-independence stories of anti-Blackness leading up to contemporary Korea by implying the continuing significance of anti-Blackness beyond the precolonial and colonial eras

BIOMECHANICAL ANALYSIS OF BACK-SOMERSAULT KICKS IN TAEKWONDO

This study was purposed to investigate biomechanical differences between best and worst trials in performing back-somersault kicks in Taekwondo. Six elite members of college Taekwondo demonstration team participated in this study and executed each ten trials of single back-somersault kick and double back-somersault kick, respectively. High speed motion capturing system collected positions of 21 markers on major anatomical locations to obtain motion data of full body segments. After post-processing procedure, results showed that the best trial of back-somersault kicks indicated longer preparation time (countermovement), larger range of motions of hip joint, and higher peak angular velocities of knee and hip joints prior to take-off than those of the worst trial. We concluded that athletes should avoid a quick countermovement before take-off, which induces insufficient strain energy of lower extremities and ground reaction impulse. Therefore, a sufficient time for muscle contractions are required to develop high power

(E)-2,2′-[3-(2-Nitro­phen­yl)prop-2-ene-1,1-di­yl]bis­(3-hy­droxy­cyclo­hex-2-en-1-one)

In the title compound, C21H21NO6, each of the cyclo­hexenone rings adopts a half-chair conformation. Each of the pairs of hy­droxy and carbonyl O atoms are oriented to allow for the formation of intra­molecular O—H⋯O hydrogen bonds, which are typical of xanthene derivatives

Nanomechanical behavior of biodegradable metallic glass for transient electrodes

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A Passivity-based Nonlinear Admittance Control with Application to Powered Upper-limb Control under Unknown Environmental Interactions

This paper presents an admittance controller based on the passivity theory for a powered upper-limb exoskeleton robot which is governed by the nonlinear equation of motion. Passivity allows us to include a human operator and environmental interaction in the control loop. The robot interacts with the human operator via F/T sensor and interacts with the environment mainly via end-effectors. Although the environmental interaction cannot be detected by any sensors (hence unknown), passivity allows us to have natural interaction. An analysis shows that the behavior of the actual system mimics that of a nominal model as the control gain goes to infinity, which implies that the proposed approach is an admittance controller. However, because the control gain cannot grow infinitely in practice, the performance limitation according to the achievable control gain is also analyzed. The result of this analysis indicates that the performance in the sense of infinite norm increases linearly with the control gain. In the experiments, the proposed properties were verified using 1 degree-of-freedom testbench, and an actual powered upper-limb exoskeleton was used to lift and maneuver the unknown payload.Comment: Accepted in IEEE/ASME Transactions on Mechatronics (T-MECH