SOI 기판을 이용한 Thermal Probe 어레이 제작 및 특성 평가

조주현,나기열,박근형,이재봉,김영석,Cho, Ju-Hyun,Na, Kee-Yeol,Park, Keun-Hyung,Lee, Jae-Bong,Kim, Yeong-Seuk 한국전기전자재료학회 2005 전기전자재료학회논문지 Vol.18 No.11

This paper reports the fabrication and characterization of $5\;\times\;5$ thermal cantilever array for nano-scaled memory device application. The $5\;\times\;5$ thermal cantilever array with integrated tip heater has been fabricated with MEMS technology on SOI wafer using 7 photo masking steps. All single-level cantilevers have a diode in order to eliminate any electrical cross-talk between adjacent tips. Electrical measurements of fabricated thermal cantilever away show its own thermal heating mechanism. Thermal heating is demonstrated by the reflow of coated photoresist on the cantilever array surface.

액중 전기폭발법을 이용한 니켈 나노분말 제조

조주현,강충일,하윤철,진윤식,이경자,이창규,Cho, Chu-Hyun,Kang, Chung-Il,Ha, Yoon-Cheol,Jin, Yun-Sik,Lee, Kyung-Ja,Rhee, Chang-Kyu 한국전기전자재료학회 2010 전기전자재료학회논문지 Vol.23 No.9

Nickel wires of 0.8 mm in diameter and 80 mm in length were electrically exploded in liquid media such as water, ethyl alcohol. The distribution of particle sizes was broad from a few micrometers to tens of nanometer. It was identified that the particles could be classified according to its sizes by using centrifugal separator. The powder prepared in distilled water showed mainly pure metallic Ni phase although a little oxide phase was observed. The powders prepared in ethyl alcohol showed complicated unknown phases, which is attributed to the compound of carbon in the organic liquid. This unknown phase was turned to pure metallic Ni phase after heat treatment.

액중 전기폭발법을 이용한 아연 나노분말 제조 및 분석

조주현,김두헌,최시영,강충일,문갑영,Cho, Chu-Hyun,Kim, Doo-Hun,Choi, Si-Young,Kang, Chung-Il,Moon, Gap-Young 한국전기전자재료학회 2012 전기전자재료학회논문지 Vol.25 No.10

Zn wires have been electrically exploded in methanol or distilled water using the pulsed power technologies. The nanopowders produced by the explosions have been observed by using SEM and TEM, and analyzed its phase by using EDS and XRD. The nanopowders produced in distilled water showed ZnO phase only. On the other hands, the nanopowder produced in methanol showed mixed phases with Zn and ZnO. The HR-TEM images of the nanopowders produced in methanol showed that the some particles have been coated with carbon like materials. It is considered that the carbon coatings could be depended on the positions of the particles during the plasma state formed by explosion.

소아와 성인 갑상설관 낭종 환자군의 비교

조주현,전학훈,강봉수,김승기,Ju Hyun Cho,Hak Hoon Jun,Bong Su Kang,Seung Ki Kim 대한갑상선-내분비외과학회 2014 The Koreran journal of Endocrine Surgery Vol.14 No.4

Purpose: Thyroglossal duct cyst (TGDC) is known to be the most common midline neck mass in children, but the adult population still has this abnormality. The most common symptom of TGDC is a simple neck mass, and differential diagnosis among other abnormalities is important. The aim of this study is to perform a retrospective view of TGDC in order to describe any differences in clinical features, diagnostic tools, treatment, and outcomes in children and adults who underwent surgery in a single institution, and to determine its clinical implications. Methods: We performed a retrospective chart review on 75 pathologically diagnosed TGDC patients from 1995 to 2013 who were divided into two groups: children (≤18 years) and adults. Comparison analysis was performed for age, sex, site and location of cyst, size, diagnostic tool, surgical method, and postoperative outcome. Results: Our study showed frequent occurrence of TGDC in adults. There was no significant sex, site, or location difference in the occurrence of TGDC in children and adults, however, the size of cyst in adults was larger than that in children (mean, 2.80 cm vs 2.15 cm) (P< 0.001). Four patients (5.3%) had postoperative recurrence of TGDC, and Sistrunk operation showed lower recurrence rate than excision (3.1% vs 18.2%) (P<0.040). Two malignancy cases were identified postoperatively in adults. Conclusion: Particularly in adults, the possibility of carcinoma would make it important to perform fine-needle aspiration for differential diagnosis. Sistrunk procedure will remain the treatment of choice for most TGDC patients considering recurrence risk.

계절적 라돈농도 변화 및 토양기원 실내라돈과 토양내 라돈농도의 상관성 분석 -단독주택 사례연구-

조주현,김영희,Cho, Ju-Hyun,Kim, Younghee 한국지하수토양환경학회 2017 지하수토양환경 Vol.22 No.5

In this study, the variation of indoor and soil radon concentrations were measured at a test bed (detached house), and correlation analysis was performed using linear regression. The results showed that the average concentration of indoor radon was increased by about 20% when the heater was operated in the house, but it was decreased by 15% when the ventilation system was on. In the changes of seasonal radon concentrations, soil and indoor radon concentrations in winter were higher than in summer. Statistical analysis showed a weak correlation between the soil radon and indoor radon, but the correlation (R=0.852, $R^2=0.726$) was relatively high at exhaust condition in the winter. It is difficult to extrapolate the results of the study to the general cases because radon distribution is highly site-specific, but the result of this study could be used as a reference for radon management and reduction of detached house in the future investigations.

페미니즘과 기술과학

조주현(Cho Joo-hyun) 한국여성학회 1998 한국여성학 Vol.14 No.2

1인 가구의 주택수요 특성에 관한 연구 -서울시를 중심으로

조주현 ( Joo Hyun Cho ),김주원 ( Ju Won Kim ) 한국부동산분석학회 2010 不動産學硏究 Vol.16 No.4

This study attempted to analyze the characteristics of single-person households recently showing the remarkable increase and the housing demand function with a focus on Seoul with the use of Labor Panel 2008 Data. In terms of the household characteristics, They have the low level of income and asset and the low level of owner-occupied house. On the one hand, an attempt was made to analyze the housing demand model. Seeing that the housing ownership determinants of the single-person households such as net assets, Temporary income, the elasticity of user`s expenses per unit were shown to be larger than those of the total households, the decrease of temporary income, The fall of housing prices, housing-related taxes and the rise of financing costs, the decrease of housing consumption at the time of decreased assets would be larger than those of the total households. And seeing that the old aged single-person households are expected to have the high level of temporary income and have their income decreased at the stage of life cycle, it is necessary to establish the alternative at the level of residential welfare for old aged households.

냉성어혈약침이 외상성 뇌손상 흰쥐의 신경학적 회복과 BAX, BCL-2의 발현에 미치는 영향

조주현 ( Joo Hyun Cho ),최진봉 ( Jin Bong Choi ) 한방재활의학과학회 2010 한방재활의학과학회지 Vol.20 No.1

Objectives: Cool Pharmacopuncture for static blood is a famous pharmacopuncture treatment that treated disease caused by static blood. Hyolhae(Sp10) is also a famous point of acupuncture that treated that. This study was designed to evaluate the effects of Cool Pharmacopuncture for static blood into Hyolhae(Sp10) on BAX and BCL-2 expression in the experimental traumatic brain injury(TBI) rats. Methods: Male rats were divided into 3 groups.Ⅰ was no treatment after TBI. Ⅱ was treatment with needle-prick acupuncture after TBI. Ⅲ was treatment with Cool Pharmacopuncture for static blood into Hyolhae(Sp10) after TBI. The author carried out neurological motor behavioral test, histological assessment test. Neurological motor behavior tests consist of rotarod test, beam-walking test and postural reflex test. In the histological assessment test, BAX and BCL-2 expression, hematoxylin & eosin staining were experimented. Results: In neurological motor behavior tests, motor and cognitive function recovery was significantly in creased in the Ⅱ, Ⅲ as compared withⅠ(p<0.05). Especially Ⅲ was significantly increased as compared with Ⅱ(p<0.05). BAX expression was significantly decresed in order of the Ⅲ, Ⅱ, Ⅰ after 7 and 14days later. BCL-2 expression was investigated in the Ⅲ, Ⅱ as compared with Ⅰ. Especially Most increased expression was experimented in the Ⅲ. Conclusions: According to the above results, Cool Pharmacopuncture for static blood can inhibit apoptosis of cells after TBI in rats by control of BAX and BCL expression.

르 꼬르뷔제 작품에 나타나는 건축과 대지의 분리 관계 연구

조주현(Cho, Joo-Hyun),신범식(Shin, Buhm-Shik) 한국실내디자인학회 2012 한국실내디자인학회논문집 Vol.21 No.3

실천이론으로 본 비판사회학과 페미니스트 정치학의 문제

조주현(Cho Joo-hyun) 비판사회학회 2010 경제와 사회 Vol.- No.88

비판사회학에 대한 최근의 비판 중 가장 신랄한 것으로 아마도 라투르의 비판을 들 수 있을 것이다. 이 글에서 필자는 비판사회학과 페미니스트 정치학이 둘 다 연구의 정치적 함의를 강조한다는 점에서 라투르 식의 비판에 취약하다는 점을 밝히고 그 대안을 라투르의 이론과 제릴리의 자유론에서 찾는다. 필자는 이들의 이론을 실천이론 특히 신실용주의 계열의 철학자들이 제시한 이론틀 속에 재구성하여 그 대안을 찾는다. 라투르는 주류사회학의 문제점을 가장 잘 인식하고 있고 사회학자와 인류학자 중심의 실천이론가들 중에서 가장 상세한 방법론을 제시하고 있다는 점에서 필자가 추구하는 대안의 중심을 이루며 그의 이론은 페미니스트 정치학의 문제점에서 출발한 제릴리의 이론과 자연스러운 연결고리 역할을 한다. 라투르는 사회 안에서 생성되는 연결을 추적하여 적절한 개념적 도구들을 재조합하는 것을 제안하고 있다면, 제릴리는 개별여성들 간의 관계의 망을 통해 보편적 여성운동을 추구함으로써 외재적 기준의 보편주의와 내재적 기준의 상대주의를 둘 다 극복하는 제3의 길을 제시하고 있다. 라투르의 이론과 제릴리의 자유론의 분석방식은 사회학적 연구에서 도출되는 정치적 함의의 성격과 의미에도 큰 변화를 가져올 수 있다. 마지막으로 이 글에서는 이러한 분석들을 한국 비판사회학의 최근 상황과 관련지어 논의한다. TBruno Latour, perhaps, one of the most scathing critics of critical sociology or the main stream sociology in general which he termed the sociology of the social, blamed critical theorists for endlessly recycling the ready made theoretical tools to explain social phenomena. Critical sociology and feminist identity politics both share the common emphasis on the political implications of their disciplines, hence exposed to similar criticism. Latour and Zerilli are two representative figures who suggested viable alternatives in their disciplines. In this work, Latour’s and Zerilli’s theories are examined in the broad framework of practice theory mainly based on the works by neo-pragmatic philosophers to search for a potent alternative proposal against the problems critical sociology currently faces. Latour’s theory, chosen for its relatively detailed methodology suggested, will serve the backbone of this proposal and provide a natural link to Zerilli’s theory. While Latour proposed the sociology of associations and urged to laboriously trace social interactions among actors to construct the theoretical tools appropriate for explaining how each specific social practice works, Zerilli searches, in Hannah Arendt’s work on political judgment, for a way to steer through safely between the rigidity of universalism and the infertility of relativism. This proposal will also bring about significant transformations in the characters and dynamics of political implications of sociological and feminist researches. A brief comment on the current situation of critical sociology in Korea is also given.