다채널 광정렬 장치에서의 다자유도 회전 스테이지 동작 특성에 관한 연구

정상화,차경래,김현욱,최석봉,김광호,박준호 한국공작기계학회 2005 한국공작기계학회 춘계학술대회논문집 Vol.2005 No.-

In recent years, as the demands of VBNS(Very high speed Backbone Network Service) and VDSL(Very high-data rate Digital Subscriber Line) increase, the development of kernel parts of optical communication such as PLC(Planar Light Circuit), Coupler, WDM elements increase. The alignment and the attachment technology are very important to fabricate the optical elements for communication. In this paper, the mechanism of rotational stage are studied. with the three different method and the results of them are applied to the design of the system. The performance test of resolution and travel is performed.

스마트 키 리더기용 PIFA형 315MHz 스파이럴 안테나 설계

오동준,정봉식 동아대학교 정보기술연구소 2007 情報技術硏究所論文誌 Vol.14 No.2

In this paper, PIFA(Planar Inverted-F Antenna)-type 315MHz spiral antenna for smart key ECU(Electronic Control Unit) is designed. PIFA-type structure gives easy impedance matching and antenna size reduction effect. The frequency fluctuations caused by the circuits on the PCB and the smart key ECU case have to be considered to design antenna. Antenna specifications are the center frequency of 315MHz, 10dB bandwidth of 3MHz, omni-directional radiation pattern, and antenna size of 30mm by 20mm on the PCB. we find that the measurement results are agreed to the simulation results and the smart key reader with the designed antenna is well operated in the outdoor environment.

Benzo(a)pyrene 독성에 의한 사람 림프아 세포(NC-37)에서 c-myc 유전자의 발현

하봉준,정인철,곽충근,조무연 고신대학교 의학부 1996 高神大學校 醫學部 論文集 Vol.11 No.1-2

To investigate expression in c-myc gene by a chemical carcinogen benzo(a)pyrene(BP), human lymphoblast NC-37 cells were exposed to various concentrations of BP and the c-myc gene expression was evaluated by northern and slot blot hybridization methods. When NC-37 cells exposed to BP of 0-4㎍/ml were treated with HindⅡ/XbaⅠ restriction enzyme, the c-myc genes were cut at the same region regardless of BP concentration. The site of cleavage by the restriction enzyme, HindⅡ/XbaⅠ was identical in the control, BP-treated and BP-washed cells. However, the m-RNA expression in slot blot hybridization appeared to be 4-5 times higher in BP-treated cells than in the control, and this effect was partially removed by washing the BP. When the DNA isolated from NC-37 cells exposed to various concentrations(0, 2, 4㎍/ml) of BP were amplified by polymerase chain reaction using a primer containing c-myc exon Ⅰ, the resulting DNA were of the same size in all groups. These results suggest that overexpression of c-myc oncogene may be required for the malignant transformation and maintenance in benzo(a)pyrene poisoned human lymphoblast NC-37 cells.

유한요소법에 의한 용접잔류응력의 해석

김정호,조성욱,유봉준 중앙대학교 생산공학연구소 1999 생산공학연구소 논문집 Vol.8 No.1

대형구조물의 용접시 잔류변형과 잔류응력은 구 구조물의 모양과 크기, 그리고 구속조건에 따라 크게 달라진다. 따라서, 대형구조물의 잔류응력에 대한 정확한 해석을 위해 용접 잔류응력 및 용접 잔류변형을 정확히 예측할 수 있는 적절한 유한요소해석 절차의구현이 필요하다. 본 연구에서는 용접 잔류응력과 변형률의 존재를 예측할 수 있는 열전달 해석 및 열탄소성 해석과 같은 적절한 유한요소해석 과정을 찾고자 한다. 해석을 위해 아크의 열원에 대한 가우시안 분포를 가정하고 용접부의 상변화에 대한 엔탈피모델을 선정한다. 그리고, 대형구조물의 열전달해석을 위해 Remeshing기법을 이용한 유한요소모델의 생성이 필요하다. 끝으로, 개발된 해석과정은 단순맞대기 용접에 대해 적용해 보았고, Remeshing 기법은 컴퓨터 자원에 대한 절약 측면에서 상당한 효과를 나타내었다. Welded structures experience changes in shape, size and constraint conditions after favirication due to internal residual stresses. For the accurate simulation of the typical welding procedure, transient heat transfer analysis as well as thermal-elasti-plastec analysis should be employed. In this paper, appropriate finite element analysis procedures that can predict welding residual stresses and strains are presented. Gaussian distribution of arc heat source is assumed andenthalpy model is employed for phase change of the welding zone. Finally for the purpose of applying the developed technique to large scale structrues, remeshing techniques by successive generation of finite element model are given for that transfer analysis. The developed analysis procedure are tested for the simple butt welding which gives reliable results. Remeshing techniques are also tested against the existing mesh pattern which showed considerable reduction in computational resources.

자동차 실내 환경 감성측정기 개발 및 공조제어 모델링

류정호,주병수,김봉균,임준우,이덕동 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1

A sensibility measurement system that can measure human sensibility at the automobile cabin environment is developed in this paper. Five kinds of sensors that can measure temperature, humidity, oxygen, CO_(2), and HC gas concentrations are used in this system. Sensibility indexes are defined for each sensor datum, and then those are linearly combined to make a total human sensibility index. A stand-alone system is manufactured using a one-chip microprocessor, and simple controls are showed with LEDs. This system was tested for performance in automobile cabin environment and showed good reliability.

서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)

김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1

In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.

미용업 종사자들의 피부, 호흡기 및 근골격계 자각증상에 관한 유병률

이종태,박봉진,엄상화,김성준,강동묵,손혜숙,정귀원,강민숙,박성희 大韓産業醫學會 1999 대한직업환경의학회지 Vol.11 No.3

Objectives: Present study was conducted to evaluate work-related symptom prevalence among hairdressers. Methods: Exposed group comprised 184 employee employed 73 hair salons in 6 district of Pusan city, and non-exposed group comprised 119 people living recent apartments. A trained interviewer interviewed them with organised questionnaire which included dermatologic, respiratory and musculo-skeletal symptoms. Results : Prevalence of hand eczema was 28.3% in exposed group, and 5.8% in non-exposed group. Adjusted odds ratio for age and atopy history was 4.30(2.34-7.93). Prevalence of respiratory symptom (coughing) in exposed group was 22.1%, and 9.4% for non-exposed group. Adjusted odds ratio for coughing which was adjusted for age, smoking and atopy history was 2.76(1.32∼5.78). Prevalences of musculo-skeletal symptoms among exposed group were neck(59.9%), shoulder(76.6%), upper back(41.2%), lower back(72.2%), arm and elbow(31.3%), wrist(44.2%), finger(35.0%), leg(71.1%). Adjusted Odds Ratios for musculo-skeletal symptoms which was adjusted for age were neck 2.13(1.29∼3.51), shoulder 2.52(1.50∼4.24), upper back 1.71(1.01∼2.88), lower back1.78(1.06∼2.99), arm and elbow 3.10(1.62∼5.94), wrist 2.09(1.23∼3.57), finger 4.83(2.41∼9.68), leg 3.46(2.07∼5.79). Conclusions : These results show that employees in hair salon are likely to have high risk for work-related dermatologic, respiratory and musculo-skeletal symptoms and diseases. Hence, prevention methods from those work-related diseases are required to be developed. Also, the scope of occupational and environmental medicine should be expanded to service area including hairdressers.

한국어 판 구조화 임상면담도구 개발 : 신뢰도 연구

한오수,안준호,송선희,조맹제,김장규,배재남,조성진,정범수,서동우,함봉진,이동우,박종익,홍진표 대한신경정신의학회 2000 신경정신의학 Vol.39 No.2

연구목적: 정신장애의 정확한 진단과 평가는 임상에서뿐만 아니라 신뢰성 있는 연구를 위해서도 매우 중요하다. Structured Clinical Interview for DSM-IV(SCID)는 임상전문가들이 사용하는 진단도구로서, 비교적 짧은 시간에 정확한 진단을 내릴 수 있다. 본 연구는 한국어판SCID를 개발하고 그 신뢰도를 평가하기 위해 수행되었다. 방법: 국문학자가 포함된 번역위원회를 통하여 연구용판 SCID를 번역한 후, 정신과 의사 2인과 임상심리학자 1인에게 한국어판SCID 실시방법을 교육시킨 뒤 한국어판SCID를 이용한 면담의 평가자간 신뢰도 (interrater reliability)를 검증하였다. 면담 대상은 1999년 2월에서 3월까지 2개 병원 정신과에 치료중인 환자 90명(남:41명, 여:29명)이었다. 결과: 현재 장애(current disorder) 평가에서 주요 우울장애, 기분부전장애, 정신분열병, 알코올 남용 및 의존, 기타 물질 남용 또는 의존, 여러 불안장애들 및 섭식장애 등과 같은 대부분 장애의 kappa값은 .70이상으로 매우 높았다. 그 이외의 양극성 장애, 망상장애, 광장공포증, 감별 불능 신체화 장애 및 건강염려증의 kappa값도 .69에서 .40사이로 수용할 수 있는 정도였다. 평생 장애(lifetime disorder)에서는 양극성 장애(k=.69)와 감별 불능 신체화장애(k=.59)를 제외한 다른 모든 장애의 kappa값이 .70이상이었다. K-SCID 면담시 Ⅰ축 질환에 대하여 흔하게 다중 진단이 내려졌으며, 평균 진단 수는 1.5∼1.7개로 나타났다. 결론: 한국어판 SCID는 신뢰도가 높은 진단도구로 생각되며, 향후 정신질환의 정확한 진단과 임상연구에 유용하게 사용될 수 있다. Objectives: Accurate diagnosis and assessment for psychiatric disorders is crucial for research, as well as for clinical practice. Structured Clinical Interview for DSM-Ⅳ(SCID-RV) is a less time-consumimg and more accurate structured diagnostic interview form. It can be used by clinical professions and is known for a reliable diagnostic tool. Present study was conducted to develop Korean version of SCID-RV and to test the inter-rater reliability. Methods: The authors have translated original SCID-RV into Korean, and revised in parallel with sociocultural background of Korea. Ninety patients from two psychiatric hospitals, both outpatient and inpatient, were interviewed and rated independently by three raters. Results: The kappa coefficients for most of illnesses, such as major depressive disorder, dysthymia, schizophrenia, alcohol abuse and dependency, anxiety disorder and eating disorder were excellent(>0.70) in the evaluation of current disorders. And the kappa coefficients for bipolar disorder, delusional disorder, agoraphobia, undifferentiated somatoform disorder, and hypochondriasis were acceptable(>0.40) in the evaluation of current disorders. In the evalua-tion of lifetime disorders, the concordant rates of all the diagnoses except bipolar disorder and undifferentiated somatoform disorder were excellent. Lack of hierarchy in DSM-Ⅳ allows for multiple Axis I diagnoses. Mean numbers of Axis I diagnoses per subject assigned by the three raters were 1.5-1.7. Conclusions: Our findings confirm that SCID-RV yields highly reliable diagnoses. SCID-RV is recommended for accurate diagnosis in clinical practice and research on psychiatric disorders.

부신 결핵에 의한 Addison씨병 1예

송치운,구본정,안봉수,전준식,안미애,이진홍,송민호,김영건,노흥규 충남대학교 의과대학 지역사회의학연구소 1995 충남의대잡지 Vol.22 No.2

Addison's disease is a rare primary adrenal insufficient disorder resulting from chronic deficiency of adrenal cortical hormones. Clinical manefestations are generalized weakenss, weight loss, hyperpigmentation (especially sun exposed area and mucous membrane), hypotension, hyponatremia, hyperkalemia, gastrointestinal symptoms (involving anorexia, nausea, vomiting, abdominal pain). A 34-year-old woman has experienced slowly progressive generalized weakenss and skin pigmentation, anorexia, nausea, vomiting with ascites and diffuse abdominal pain. On the time of admission, her main clinical manifestations were anorexia, nausea, vomiting, fatigue, generalized weakness, amenorrhea, hair loss, diffuse abdominal pain revealed as Addison's disease due to bilateral adrenal tuberculosis. Her adrenal insufficient symptoms were recovered with the replacement of adrenocortical hormones and antituberculous medications. After treatment, Her skin pigmentation was decreased and menstruation was reappeared. Here we experienced one cases of Addison's disease with tuberculous peritonitis.

BMB Reports : Binding model for eriodictyol to Jun-N terminal kinase and its anti-inflammatory signaling pathway

Eun Jung Lee,Ki Woong Jeong,Areum Shin,Bong Hwan Jin,Hum Nath Jnawali,Bong Hyun Jun,Jee Young Lee,Yong Seok Heo,Yang Mee Kim 생화학분자생물학회(구 한국생화학분자생물학회) 2013 BMB Reports Vol.46 No.12