진공 증착된 비정질 Tb - Fe 박막의 초미세 자기장 분포 및 평균장 분석에 대한 연구

정희준,이성래,정진덕 대한금속재료학회 1990 대한금속재료학회 학술대회 개요집 Vol.1990 No.0

Hydrodynamic Flow Induced Spontaneous Micropattern of a Thin Binary Polymer Blend Film by Corona Discharge

정희준,김한기,박철민 한국고분자학회 2011 한국고분자학회 학술대회 연구논문 초록집 Vol.2011 No.1

Noise Properties of the Leakage Current Conduction in a ZrO2 Thin Film

정희준 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.63 No.10

In this paper, we report the leakage current conduction in a metal-oxide-semiconductor structure with a ZrO₂ gate dielectric and its current noise properties. The characteristics of the leakage current in ZrO₂ suggest that the leakage is caused by the trap-assisted tunneling in the low-bias region while space-charge-limited conduction is involved in the high-bias region. Lorentzian features disappear and the 1/f noise due to the carrier number fluctuation becomes dominant as the bias voltage is increased. The correlation of the Lorentzian feature in the current noise power spectrum with the time domain random telegraph signal fluctuation supports the trap-mediated carrier conduction mechanism. The transition from trap-assisted conduction to space-charge-limited conduction is discussed in terms of the noise response.

월드컵, 자본, 미디어의 삼각동맹과 애국주의

정희준 한국스포츠사회학회 2006 한국스포츠사회학회지 Vol.19 No.2

2002년에 이어 4년만에 다시 찾아 온 월드컵 열풍은 그때와는 또 다른 분석을 요구한다. 따라서 월드컵 과열현상 속에 내재된 요인들과 그들간의 상호관계 및 작동방식을 밝혀내려는 새로운 노력이 필요하다. FIFA는 월드컵 축구라는 단 하나의 콘텐츠를 대중 일상 속의 시간과 공간을 분할하여 ‘쪼개’ 파는 극한의 상술을 선보이고 있다. 많은 기업들은 월드컵 특수를 연장하기 위해 대회 시작 전부터 열기를 고조시키기 위해 전력을 기울이고 있고 특히 방송통신업계의 기술자본은 월드컵을 자신들의 시장을 넓히기 위한, 또 새로운 매체를 선전하기 위한 도구로 활용한다. 미디어도 광고수입, 시청자 수, 판매 부수의 증대를 위해 월드컵 과열 현상에 대한 비판을 자제하면서 ‘자기검열’ 하는 가운데 역시 이윤창출 극대화에 동참하고 있다. 여기에서 등장하는 새로운 현상은 바로 자본의 애국이다. 과거 국민국가의 근간이던 애국주의는 이제 상업자본의 버팀목으로 기능을 전환하고 있다. 이러한 쇼비니즘과 ‘하나됨’을 강요하는 전체주의의 사회분위기 속에 한국사회는 객관적, 비판적 의식을 상실할 위기의 징후를 보이고 있는데 이는 특히 한국사회가 한미FTA라는 중요한 현안에 대한 국민적 경각심을 잠재우는 상황으로까지 몰아가고 있는 것이다. The national frenzy of 2006 World Cup in Korea needs to be analyzed with different perspectives from that of 2002. An effort to clarify the inter-relationship and inter-action between those factors lying inherent in World Cup fervor. FIFA is showing the new, extreme business techniques selling a content, a World Cup, by chopping time and space. And technical capital, especially, exploits World Cup not only to expand its market but also to sell their new products. Media is also showing their energetic move for the commercial revenue, viewers and sales while restraining from criticizing commercialized World Cup in the form of self-sensorship. In the midst, patriotism emerges as a crucial factor. It seems that patriotism, a backbone of nation-state in the past, has becomes the key prop underpinning commercial capital The chauvinistic atmosphere leads Korean society to the one absent with object and critical consciousness, especially in the midst of Korean-America Free Trade Agreement.

도파민의 위암세포증식에서의 역할

정희준,박기호,채현동,Jeong, Hee-Jun,Park, Ki-Ho,Chae, Hyun-Dong 대한위암학회 2006 대한위암학회지 Vol.6 No.3

Purpose: Dopamine is a neurotransmitter, but in the GIT, the roles of dopamine are a regulator of epithelial cell proliferation, an endogenous protective factor, and a regulator of stomach cancer cell proliferation. By using two different gastric-cancer cell lines, we assessed the effects of dopamine and dopamine receptors on the proliferation of human gastric-cancer cells. Materials and Methods: To assess the effects of dopamine and dopamine receptors on the proliferation of human gastric-cancer cells, we investigated cell proliferation and the expression of D1, D2L, and D2S receptor in two gastric-cancer cell lines, SNU 601 and KCU-C2. The effects of dopamine and dopamine receptors on the level of the cell proliferation were determined by staining with an A/H/E (acridine orange, hoechst and ethidium bromide) mixture. Results: After dopamine treatment, the cell viability was significantly decreased in SNU 601 cells (P<0.05) where the D2L receptor was absent, but not in KCU-C2 cells. After treatment with raclopride, a D2 receptor antagonist, dopamine-dose-dependent inhibition of cell proliferation was observed in SNU 601 cells (P<0.05). After treatment with SCH 23390, a D1 receptor antagonist, dopamine significantly increased ceil proliferation in KCU-C2 cells (P<0.05), but inhibited ceil proliferation in SNU 601 cells (no D2L receptor). Conclusion: The dopamine signal via the D1 or the D2S receptor inhibited proliferation of gastric-cancer cells, but that via the D2L receptor increased proliferation. These results suggest that the regulatory effects of dopamine in the gastric-cancer cell proliferation may be controlled by using dopamine receptors.

소비자본주의적 몸의 등장과 운동의 사회문화적 의미의 변화

정희준,박수정 한국스포츠사회학회 2005 한국스포츠사회학회지 Vol.18 No.1

The purpose of this study was to find out the sociocultural mechanism who grasp intent of body and realization change that is embossed newly to people who behave exercise and forms body sociocultural this week. Method of reserch selected qualitative researching, and place of this study is B fitness club which is situated in Busan. Informer was total 16 people and there was collection of data through depth interview, literature study and observed board of on-line. Women wanted that whole informer has form of health that is new through exercise sex system was still reproduced by results division of labor in body management and along with this that B fitness informers are no body. For exercise seek and to them corpulence, abdomen local Back was agreed to by origin of diseases. Problem is that was seeking state that proud flesh does not exist only with the standard is not presented. Also, man were being society which is required Shape. To achieve this body administration do the known sociocultural mechanism be made in interaction with another person and is emitted more also looking at oneself through another person's gaze. Social success hangs finally to present ability and image which can be accepted that can manage self selecting suitable personal relations know-hows on this society.

A Study of Frequency Mixing Approaches for Eddy Current Testing of Steam Generator Tubes

정희준,송성진,김창환,김대광 한국비파괴검사학회 2009 한국비파괴검사학회지 Vol.29 No.6

The multifrequency eddy current testing(ECT) have been proposed various frequency mixing algorithms. In this study, we compare these approaches to frequency mixing of ECT signals from steam generator tubes; time-domain optimization, discrete cosine transform-domain optimization. Specifically, in this study, two different frequency mixing algorithms, a time-domain optimization method and a discrete cosine transform(DCT) optimization method, are investigated using the experimental signals captured from the ASME standard tube. The DCT domain optimization method is computationally fast but produces larger amount of residue.

펀드산업 발전이 경제성장에 미치는 영향

정희준,황선웅 한국경영학회 2010 한국경영학회 통합학술발표논문집 Vol.2010 No.08

Fabrication of Microscale Polymer Pattens using electrohydrodynamic flow

정희준,박철민 한국고분자학회 2008 한국고분자학회 학술대회 연구논문 초록집 Vol.33 No.2

Noise Properties of Coherent Tunneling Processes in Resonant Interband Tunneling Diode

정희준,김영상,김동우 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.53 No.4

Tunneling noise properties were studied with SiGe resonant interband tunneling diodes (RITDs). The classification of sub- and super-Poissonian processes was evaluated through a study of the shot noise. Shot noise suppression and the signatures of coherent transport were observed in the negative differential resistance (NDR) region by using the cross-correlation measurement technique. The temperature dependent transport behaviors are discussed. Tunneling noise properties were studied with SiGe resonant interband tunneling diodes (RITDs). The classification of sub- and super-Poissonian processes was evaluated through a study of the shot noise. Shot noise suppression and the signatures of coherent transport were observed in the negative differential resistance (NDR) region by using the cross-correlation measurement technique. The temperature dependent transport behaviors are discussed.