Who Wants Diaspora? : Representation of Zainichi-Chosenjin on Expo70 Tokyo Operation and Returning to Paldogangsan

본 논문은 국익에 환원되는 대상으로서 재외동포를 다루는 기존 연구에 대한 비판적 시각에서 출발하고 있다. 우선 「엑스포70 동경작전」(1970)과 「돌아온 팔도강산」(1976) 두 편의 영화에 대한 담론분석을 통해 국가나 민족 등의 근대 개념의 이데올로기적 규범성을 심문하는 존재로서 디아스포라를 재정립한다. 그리고 누가 디아스포라를 필요로 하는가라는 문제의식 아래 한국 내셔널리즘(nationalism)과의 관계 속에서 재일조선인을 둘러싼 정치의 한 측면을 밝혀 보고자 시도했다. 이를 통해 한국 영화의 재일조선인 표상은 국가의 국민적 기억 만들기 속에서 만들어졌다는 점과 한국의 내셔널리즘에 내포된 모순을 품고 있다는 점, 그리고 거기에 젠더규범이 강하게 작용하고 있다는 점을 살펴보았다. 국가는 코리안 디아스포라를 경제・정치적 측면에서 필요로 해왔다. 그러나 거기에는 동시에 국가나 민족 등의 근대 개념을 다시 묻는 기제도 존재했다. 또한 젠더질서도 표상에 반영되어 왔다. 국가가 디아스포라를 필요로 해왔다는 사실에 대한 비판적 시각이야말로, 재일조선인이나 재외동포들을 바라보는 데 있어서 중요한 시각일 것이다.This article takes a critical view toward the previous studies on the overseas Koreans which have been dealing with overseas Koreans who were subjected to serve the purpose of national interests. First, it carries out a discourse analysis on two movies, Expo70 Tokyo Operation, and Returning to Paldogangsan, in order to redefine the term diaspora as a necessity for the interrogation against the ideologically- defined modern concepts of state and nation. Then, by asking a critical question of who needs diaspora?, I tackle some political aspects that surround zainichi in relations to the Korean nationalism. It aims to expose the following issues: the representation of zainichi as a simultaneous creation by a nation-state, along with the makings of the nations collective memory that are apparent in Korean movies; the representation of zainichi that embraces contradictions within Korean nationalism; and the gender norms that strongly operate within these movies. A nation-state has always needed Korean diaspora for both economic and political reasons. It is needless to say that politico - economic aspects were operating behind the representation of diaspora who were being the subjects of either exclusion or inclusion, but at the same time, there has been a system through which the modern concepts, such as nation- state or nation, were repeatedly questioned. Therefore, it would be an important insight on the studies of both zainichi and oversea Koreans, when we take a critical approach by arguing that a modern state actually needed the diaspora

A study on noise and vibration characteristics of column type electric power steering

학위논문 (석사)-- 서울대학교 대학원 : 기계항공공학부, 2012. 8. 강연준.차량의 컬럼식 전동조향장치는 전동기, 센서, 감속기어, 베어링, 컬럼, 유니버셜 샤프트로 구성되는데 전체 시스템이 작동 시에 정확한 소음원을 찾는 것이 어려우며 많은 시간과 노력이 필요하게 된다. 본 연구는 주요소음 발생인자인 전동기, 감속기어, 베어링의 운동 역학부터 여러 유형별 소음, 진동이 발생하는 메커니즘을 규명하고 이를 측정, 분석하기 위한 수치, 해석적인 방법으로 발생 소음, 진동주파수를 예측하고 공간상 소음원 가시화, 주파수 스펙트럼, 차수 분석, 모달 테스트 등과 같은 실험적인 방법을 활용하여 소음원을 분석, 검증하는 근본적이고 효율적인 방법에 대한 내용을 담고 있다.This paper establishes practical methods to characterize noise and vibration sources of C-EPS (Column type Electric Power Steering) by its components. Geometry asymmetry, deadtime for motor, bearing defects and gear meshing frequencies are presented with numerical and analytical approaches. The principle of amplitude modulations by more than two coupled frequencies like deadtime with system vibration and PWM control with current harmonics is introduced. The validity of these methods is verified with various vibro-acoustic experiments such as frequency spectrum, intensity map, order analysis and so on.초 록 목 차 LIST OF TABLES LIST OF FIGURES 1. 서 론 1.1 연구 배경 1.2 연구 내용과 목적 2. 전동기의 토크변동에 의한 소음, 진동 분석 2.1 회전토크 발생원리 2.2 비대칭 구조에 의한 토크변동 2.3 데드타임에 인한 토크변동 2.4 진폭변조 특성 3. 베어링의 고유진동과 흠집에 의한 소음, 진동분석 3.1 구름접촉을 하는 회전체의 동역학 3.2 흠집에 의한 소음, 진동 차수분석 3.3 진동, 음향측정, 회귀분석을 활용한 고유주파수 확인 4. 감속기어 구동에 의한 소음, 진동 분석 5. 결 론 참고 문헌 ABSTRACT 감사의 글Maste

20세기 초반 미국 산업에서의 직업구조의 양상

학위논문(석사)--서울대학교 대학원 :경제학부,2001.Maste

Printed Inorganic Metal Oxide and Organic Nanowires for Flexible and Transparent Nano-Electronics

DoctorFuture ubiquitous optoelectronics require versatile features, such as the portability, wearability, transparency and flexibility with a superior electrical and mechanical stability. The technological innovations, research, and the fabrication processes of the next-generation optoelectronics have propelled the flexible and transparent display industry to greater heights. Transparent and flexible transistors for circuits and systems represent a key research area for future applications for invisible electronics. In particular, one dimensional nanostructure such as a nanowire is desirable attribute that offer higher mobility, transparency and flexibility for the transparent and flexible transistors. Nanowires required for optoelectronic researches are classified according to the electrical conductivity of the materials, such as semiconducting and conducting materials. Two kinds of nanowires are positively necessary components to compose the flexible and transparent nano-electronics. During the last decades, various methods were developed consequently for nanowires mass production, but they usually suffer from the difficulty in precise control position and orientation of individual nanowires. A novel approach is required to overcome limitations, we develop the direct printing system, electrohydrodynamic nanowire printer (e-NW printer). The e-NW printing method, which employs a strong electrical field to elongate polymers from a viscous solution into solid-state wires, is probably so far the most powerful and most popular technique to produce long, continuous and aligned nanowire. A key challenge for nano-electronics is the designable alignment of one-dimensional nanostructures. In Chapter 3, we introduce a e-NW printing method that prints arbitrarily long and continuous precursor-incorporated micro and nanowires (NWs) on a large area with computer-digital-control to achieve designed metal oxide micro and nanowire (MOW) patterns. Scalable fabrication of various long continuous MOWs that were digitally aligned on a large area was successfully achieved, indicative of broad applicability of the technique. The MOWs were then utilized for the fabrication of field-effect transistors (FETs) to demonstrate their versatile electronic applications. We fabricated unprecedented large-scale all-wire transistors using semiconducting IZO NWs and conducting In2O3 NWs with a high mobility of ~17.67 cm2/Vs, which provide a useful platform for fully transparent electronics. This is a benefit of longitudinal crystal structure along the channel. The e-NW printing is a simple, inexpensive, and rapid fabrication approach that can solve the difficulties in aligning MOWs, and thus provides an important addition to the state-of-art technologies towards future nano-electronics and transparent electronics. In Chapter 4, flexible organic-nanowire transistors are fabricated using e-NW printed highly-aligned polymer nanowires as semiconducting channels and self-patterned PFI-doped PEDOT:PSS conducting polymer electrodes. All polymer transistors were also successfully obtained. The devices exhibited significantly enhanced charge carrier mobility and endure extreme bending tests. These superior electrical properties of the devices pave the way to realization of future flexible nano-electronics. In Chapter 5, organic and inorganic hybrid nanowire p-n junction photodiodes are fabricated using highly-aligned polymer (P3HT:PEO blended p-type NW) and metal oxide (ZnO, IZO, IGZO, n-type NW) nanowires as semiconducting channels printed e-NW printing method. Both polymer and metal oxide nanowires successfully formed the cross-stacked nanoscale p-n junction for the enhanced sensing performance. The nanowires nano-junction exhibited good rectification ability as well as photodiode characteristics. Our study demonstrated that organic and inorganic hybrid nanowire photodetector is beneficial in the advancement of novel nano-scale photo-responsible technology

The charge transport and morphology of organic semiconductor films confined in nano-patterned region

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Self-organized polymeric electrodes to improve the charge injection contact in organic thin film transistors

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