Negative PR의 기밀 특성

최의정,선용빈,Choi, Eui-Jung,Sun, Yong-Bin 한국반도체디스플레이기술학회 2006 반도체디스플레이기술학회지 Vol.5 No.2

Many issues arose to use the Pb-free solder as adhesive materials in MEMS ICs and packaging. Then this study for easy and simple sealing method using adhesive materials was carried out to maintain hermetic characteristic in MEMS Package. In this study, Hermetic characteristic using negative PR (XP SU-8 3050 NO-2) as adhesive at the interface of Si test coupon/glass substrate and Si test coupon/LTCC substrate was examined. For experiment, the dispenser pressure was 4 MPa and the $200\;{\mu}m{\Phi}$ syringe nozzle was used. 3.0 mm/sec as speed of dispensing and 0.13 mm as the gap between Si test coupon and nozzle was selected to machine condition. 1 min at $65^{\circ}C$ and 15 min at $95^{\circ}C$ as Soft bake, $200\;mj/cm^2$ expose in 365 nm wavelength as UV expose, 1 min at $65^{\circ}C$ and 6 min at $95^{\circ}C$ as Post expose bake, 60 min at $150^{\circ}C$ as hard bake were selected to activation condition of negative PR. Hermetic sealing was achieved at the Si test coupon/ glass substrate and Si test coupon/LTCC substrate. The leak rate of Si test coupon/glass substrate was $5.9{\times}10^{-8}mbar-l/sec$, and there was no effect by adhesive method. The leak rate of Si test coupon/LTCC substrate was $4.9{\times}10^{-8}mbar-l/sec$, and there was no effect by dispensing cycle. Better leak rate value could be achieved to use modified substrate which prevent PR flow, to increase UV expose energy and to use system that controls gap automatically with vision.

외과의사들의 방어기제에 관한 연구

최의정(Eui Jung Choi),정한용(Han Yong Jung),이소영(So Young Lee),한선호(Sun Ho Han),우성일(Sung Il Woo) 한국정신병리진단분류학회 2001 精神病理學 Vol.10 No.1

N/A N/A

자살시도 환자의 혈소판내 세로토닌 농도와 심리학적 특성에 관한 연구

정희연,권영준,박인준,홍세용,최의정,진혁희,Jeong, Hee Yeon,Kwon, Young Joon,Park, In Joon,Hong, Se Yong,Choi, Eui Jung,Jin, Hyuk-Hee 대한생물정신의학회 1999 생물정신의학 Vol.6 No.1

자살 시도군 21명, 우울증 환자군 14명, 그리고 정상 대조군 10명을 대상으로 혈소판내 세로토닌의 농도, 반 구조화된 설문조사, 다면적 인성검사, HAM-D, 충동성 검사를 시행하여 비교한 결과는 다음과 같았으며, 자살 시도군의 자살방법은 대부분 농약 중독이었다. 1) 자살 시도자의 남녀 비는 차이가 없었다. 2) 혈소판내의 세로토닌의 농도는 자살 시도군, 우울증 환자군 및 정상 대조군간에 차이가 없었다. 3) 다면적 인성검사 결과는 자살 시도군의 경우 D, Hs, Pt 척도가 높았으며, 우울증 환자군의 경우 D, Pa, Si 척도가 높았다. 4) HAM-D 점수는 우울증 환자군과 자살 시도군 모두에서 높았으며, 특히 우울증 환자군의 경우 더 의미 있게 높았다. 5) 충동성 검사 결과는 자살 시도군이 우울증 환자군에 비하여 무계획 충동성, 운동 충동성이 의미 있게 높았다. Objectives : Significant progress has been made in understanding psychosocial, psychological, and environmental factors associated with suicide. However it is only recently that attention has been paid to the understanding of the neurobiology of suicide. The aim of this study was to examine the relationship between platelet serotonin level and suicidal behavior and psychological features of the suicidal attempters. Methods : After a suicidal attempt platelet serotonin level was measured from 21 patients and compared it with those from depression patients and normal controls. Also MMPI, HAM-D, Barratt impulsiveness scale(BIS) were done to evaluate their psychological features. Results : 1) There was no significant difference in sex ratio of the suicidal attempters. 2) There was no significant difference in platelet serotonin levels among three groups. 3) The analysis of MMPI revealed that the scores of D, Hs, Pt in clinical scales were significantly higher in suicide patients and scores of D, Pa, Si were in depression patients. 4) The HAM-D score was significantly higher in depression and suicide patients, especially in depression patients. 5) The analysis of Barratt impulsiveness scale revealed that the scores of nonplanning, motor and cognitive impulsiveness scale were significantly higher in suicide patients. Conclusions : There was no significant difference in platelet serotonin levels among three groups. However the analysis of psychological features revealed significant differences. Therefore we concluded that psychological examinations are benefit to evaluate the suicidal tendency.

정신건강증진 및 정신질환자 복지서비스 지원에 관한 법률 시행 전후일 지역의 정신병원에서 입원형태, 평균 재원일수, 재입원율, 환자 속성의 변화

이선환(Sun-hwan Lee),황현국(Hyun-kuk Hwang),강유평(Yu-pyung Kang),박종익(Jong-Ik Park),최종혁(Jong Hyuk Choi),최의정(Eui Jung Choi),이준영(Jun Young Lee) 대한사회정신의학회 2019 사회정신의학 Vol.24 No.1

연구목적 : 2017년 5월 30일부터 시행된 ‘정신건강증진 및 정신질환자 복지서비스 지원에 관한 법률’(이하 정신건강복지법) 시행 후 입원형태, 평균 재원일수, 재입원율 및 환자 속성의 변화를 확인하고자 연구를 수행하였다. 방 법 : 정신건강복지법 시행 전후 각 1년 동안 춘천 지역의 일 국립정신병원과 일 사립정신병원에 입원후 퇴원한 환자를 대상으로 하였다. 환자의 개인식별 정보를 제외한 의무기록 1,396건을 후향적으로 검토 하였다. 정신건강복지법 시행에 따른 두 군간의 특성을 비교하기 위해 t 검정, 카이제곱 및 일원변량분석 검정을 시행하였다. 결 과 : 정신건강복지법 시행 전후 대상군의 환자 속성은 유의한 차이가 없었다. 자발적 입원의 비율은 32.8%에서 86.7%로 유의한 증가를 보였다. 환자들의 평균 재원일수는 84.9일(±70.8)에서 54.6일(±53.6)로 유의한 감소를 보였다. 환자 속성과 관련하여 여성 환자군, 조현병 환자군, 직업이 없는 환자군, 비자발적 입원 환자군에서 평균 재원일수가 더 큰 폭으로 유의하게 감소되었다. 하지만 재입원 율은 15.5%에서 21.1%로 유의하게 증가되었다. 결 론 : 본 연구에서는 개정된 정신건강복지법이 시행된 이후 환자들의 평균 재원일수 감소와 자발적 입원 형태의 비율 증가와 같은 개정된 법률 취지에 부합된 결과를 보인 반면, 재입원율이 증가되는 결과를 확인하였다. 향후 정신보건정책 및 관련 법률의 적극적인 보완과 검토가 필요할 것으로 보인다. Objective : The main purpose of this study was to investigate the change of hospitalization type, length of hospitalization, readmission rates, and patient attributes of psychiatrically hospitalized patients before and after the 2017 revision of mental health law. Methods : We retrospectively reviewed medical records of 1,396 cases of psychiatrically hospitalized patients who were hospitalized and discharged in a national mental hospital or a private mental hospital from a period spanning from 1 year before to 1 year after the 2017 revision of the Mental Health Law. We used either the t-test, chi square test, or the one-way analysis of variance to compare characteristics between each group and examined their influence on the 2017 revision of mental health law. Results : The rate of voluntary admission markedly increased from 32.8% to 86.7% with no significant change in patient attributes. The length of hospitalization in a mental hospital significantly decreased from 84.9 (±70.8) days to 54.6 (±53.6) days. Individual factors showing a significant decrease with the length of hospitalization included female sex, schizophrenia, unemployment, and involuntary admission type. However, the readmission rate significantly increased from 15.5% to 21.1%. Conclusion : The findings of this study suggests that the 2017 revision of mental health law produced favorable results in the length of hospitalization and admission type, but a unfavorable result in the readmission rate. It is necessary to supplement the mental health policies and laws.

전산화 신경인지 검사를 이용한 외상후 스트레스장애 환자의 인지기능 측성

한상우,최의정,한선호 순천향의학연구소 1998 Journal of Soonchunhyang Medical Science Vol.4 No.2

objective: Among the patient who injured by traffic accident, they complaint decreased cognitive functioning from severe traumatic brain injury and mild traumatic brain injury such as 'post-concussional syndrome' to 'compensation neurosis' But Physicions ignore the evaluation and treatment of the patient with mild traumatic brain injury and no head trauma history who complaint cognitive disturbance, because they are tend to considered as malingering or 'compensation neurosis'. In this study, the authors evaluated cognitive functioning of the patient with post-traumatic stress disorder who were admitted by traffic accident and were no evidence of head trauma. method : Among the thirty patients who were admitted by traffic accident in Soonchunhyang university hospital, authors selected the patients that 1) had no evidence of head trauma, and 2) have no prominent faking-bad attitude, and 3)have the symtomatology of posttraumatic stress disorder. The number of the selected patient was eighteen, and authors performed physical and psychiatric examination including computed neuropsychological test. results : the result of computed neuropsychological test, thirteen patients had mild attention impariment and, six patients had impairment of immediate recalling, ten patients had mild visuoperceptual disablilty. conclusions : In this study, some patients with posttraumatic stress disorder had impaired attention, immediate recalling, visuoperceptual functioning in computed neuopsychological test.

진로선택에서 나타난 의과대학생의 자아방어기제

정한용,한선호,최의정,김동욱 大韓神經精神醫學會 1999 신경정신의학 Vol.38 No.6

연구목적: 객관적인 질문지 형태의 이화방어기제검사를 사용하여, 의과대학생의 향후 전문과목 선택에 있어 크게 내, 외과 계열을 선택하는 사람들 사이의 자아방어기제상의 차이가 있는 지를 살펴봄으로써, 특정과를 선호하는 데에 따른 학생들의 공통적인 성격 특성이나 적응방식이 과별로 차이가 있는가를 살펴보고자 하였다. 방 법: 순천향 의과대학에 재학중인 본과 4학년을 대상으로 이화방어기제검사를 이용하여 내과계열과 외과계열을 선택한 학생들 사이의 방어기제를 비교하였다. 결 과: 내과와 외과를 선택한 학생 집단간의 방어기제들의 평균점수와 성숙도에 따라 나눈 4개의 방어기제군의 평균점수에는 유의한 차이가 없었다. 그러나 주된 방어기제를 사용하는 빈도를 비교한 결과 미숙한 방어기제에서 수동-공격(passive-aggression)과 신경증적 방어기제에서 허세(show-off)는 외과군이 내과군에 비해 그 빈도가 유의하게 높았던 반면, 성숙한 방어기제에서는 유우머(humor)를 주된 방어기제로 사용하는 학생수의 빈도가 내과를 선택한 학생들이 외과를 선택한 학생들보다 유의하게 높았다. 결 론: 주된 방어기제의 빈도 차를 분석해 본 결과 학생 집단간의 성격 상 유의한 차이는 보이지 않았다. 그러나 내과를 선택한 학생들에서 외과를 선택한 학생들보다 성숙한 방어기제에서의 유우머(humor)를 주된 방어기제로 사용한 학생들의 빈도가 높아 갈등이나 불안, 고통의 상황에서 유우머를 통하여 이런 상황을 견디는 힘을 얻게되고, 이러한 개인의 경우 강한 자아 강도를 지니고 있을 가능성이 높게 보일 수 있는 학생들이 많았다. 반면, 외과계열을 선택한 학생들은 미숙한 방어기전에서 다른 사람에 대한 공격적인 감정을 직접적으로 표현하지 않고, 간접적으로 수동적 저항으로 표현함으로써 자신의 공격적인 감정을 처리하는 수동-공격(passive-aggression)에서 높은 빈도를 보였다. 또한, 신경증적 방어기제에서 자신의 능력에 비해서 과분한 행동 목표를 결정하고 이를 과시하고 특히 자신의 행동이 타인에게 어떻게 평가받을 지에 대해 상당히 민감한 타인 지향적 성향을 지니는 허세(show-off)를 주된 방어기제로 사용한 학생들이 많았다. 이러한 결과는 전공에 따른 공통 성격특성과 적응방식의 차이를 밝혀냄으로써 그 과의 특성에 따른 적성을 알아내는데 도움이 될 것 같다. Objectives: To determine differences of common personality profiles and coping mechanisms of medical students who prefer specific specialties(medicine and surgery), the authors evaluated the defense mechanisms of the medical students by using Ewha Defense Mechanisms Test. Methods: The authors compared the defense mechanisms between two groups(medicine selection group and surgery selection group) who are in the senior year of the Soonchunhyang University School of Medicine. Results: There were no significant differences in mean scores of the each defense mechanism and 4 groups of defense mechanisms divided by maturity level between the groups of students who selected medicine and surgery. But, frequency of major defense mechanisms were as follows: For the surgery selection group, the passive-aggression in the Immature defense mechanism and show-off in the Neurotic defense mechanism were significantly higher than in the medicine selection group. Contrarily, in the medicine selection group, humor in the mature defense mechanism as the major defense mechanism was significantly higher than in the surgery selection group. Conclusion: After analysis of the difference of frequency of major defense mechanisms between the two groups, there were no significant differences between the two groups in personality. However, the students of the medicine selection group used humor of the mature defense mechanism as a major defense mechanism in higher frequency than the surgery selection group. In situations of complications, anxiety and suffering, the use of the humor defense mechanism gave the students strength to endure these situations. Among these students, there is a high probability that many of them possess strong ego strength. Contrarily, the students of the surgery selection group did not express aggression directly, rather, they expressed these feelings indirectly through passive opposition. There was a high frequency of passive-aggression defense mechanism in dealing with feelings of aggression. Also, in the neurotic defense mechanism, compared to ability, excessive goals were set as was the resulting behavior. Especially, behavior was extremely sensitive to how others would evaluate those actions resulting in using show-off mechanism as a major defense mechanism in higher frequency by the surgery selection group. The results seem to be useful in understanding the student`s optimal character for specific specialities that were selected by evaluating the differences of the common characteristics and coping mechanisms of each specialty group.