인간 면역부전 바이러스(HIV) 감염자 사이에서의 1기 및 2기 매독의 유행

장희창,조재현,박완범,이기덕,이창섭,김홍빈,오명돈,최강원 대한감염학회 2004 감염과 화학요법 Vol.36 No.6

목적 : 국내 HIV 감염자 사이에서 발생한 매독의 유행을 보고하고, 그 역학적 특성을 규명하고자 하였다. 재료 및 방법 : 1999년 7월부터 2003년 9월까지 서울대학교 병원에서 추적 관찰을 받아온 HIV 감염자를 대상으로 하여 1기 및 2기 매독의 발생을 조사하였다. 발생률을 정확히 구하기 위해 추적 관찰을 받은 모든 HIV 감염자의 인년을 6개월 간격으로 구하였다. 결과 : 51개월 동안, 465명의 HIV 감염자가 서울대학교 병원에서 추적 관찰을 받았다. 이중 38명이 1기 및 2기 매독으로 진단되었다. 1기 및 2기 매독의 발생률은 이기간 동안 100인년 당 4.1명이었다. 1999년 7월부터 2001년 12월 사이에는 발생자가 없었으나, 이후 발생률은 꾸준히 증가하여 2003년 9월에는 100인년 당 18.8명이 되었다. 1기 및 2기 매독의 발생률은 동성애자 및 양성애자에서 이성애자에서보다 4.3배 높았고, HAART로 치료를 받지 않은 환자에서 HAART로 치료를 받고 있던 환자에서 보다 10.9배 높았다. 결론 : 2002년부터 국내 HIV 감염자 사이에서 1기 및 2기 매독이 유행하기 시작하였고, 이러한 유행은 동성애자와 양성애자 및 HAART로 치료를 받고 있지 않던 사람 사이에서 발생하였다. Background : This study was performed to characterize the epidemiologic and clinical features of outbreak of syphilis among HIV sero-positive patients in Korea. Materials and Methods : A retrospective case review of patients diagnosed with primary and secondary syphilis from July 1999 to September 2003 was carried out at Seoul National University Hospital in Korea. To estimate the incidence, person-years (PYs) of all HIV sero-positive patients, who visited the hospital in the same period, were calculated every 6 months. Results : In a 51 month period, 465 HIV-positive patients were followed up at Seoul National University Hospital. 38 cases of primary and secondary syphilis were diagnosed. The incidence of primary and secondary syphilis was 4.1 per 100 PYs during the study period. There was no case from July 1999 to December 2001, and then the incidence rose until September 2003 from 5.5 per 100 PYs in 1999 to 18.8 per 100 PYs in 2003. The rate of primary and secondary syphilis was 4.3 times higher among homosexual and bisexual men than heterosexual men (95% CI 1.87 to 11.17), and 10.9 times higher among patients who did not receive HAART than patients who were receiving HAART (95% CI 5.47 to 21.79). Conclusion : The outbreak of primary and secondary syphilis among HIV-positive patients started in 2002 and has been escalating, especially among homosexual/bisexual men and in patients who did not receive HAART.

다중주파수·다중성분 고막운동도에 관한 연구

소원섭,이지연,강희라,손원진,허승덕 대구대학교 특수교육재활과학연구소 2012 再活科學硏究 Vol.30 No.1

이 연구는 이학적·청각학적 정상 소견을 가진 성인들의 다중주파수 고막운동도(multi-frequency tympanogram, MFT)와 다중성분 고막운동도(multi-component tympanogram, MCT)의 특성을 알아보고자 하였다. 연구 참여자는 D대학교 재학 중인 19명(M:F=9:10, 만 19∼23세)으로 하였다. MCT는 각 성분(admittance; Y, susceptance; B, conductance; G)별 정점의 수를 확인하였고, MFT는 200 ㎐부터 2 ㎑ 순음에 대한 고막 긴장 및 이완상태에서 전도율을 통해 공명주파수와 ΔB, Δ∅를 각각 구하였다. MCT는 668 ㎐ 자극에 대해 47.4 %가 1Y1B1G를, 52.6 %가1Y3B1G를 보였고, MFT의 공명주파수는 829~1,213(1,021±192) ㎐, ΔB와 Δ∅의 평균은 각각 –0.18, -19.3으로 관 찰되었다. This study will be to confirm the characteristic of Multi-component tympanogram(MCT) and Multi-frequency tympanogram(MFT) of adults who have physical and audiological normal findings. Participants were 19 students(M:F = 9:10) who are attending D-university. MCT checked the number of peaks per each component(admittance; Y, susceptance; B, conductance; G) and MFT got the resonance frequency through the conductivity rate of tympanic membrane's tense and relaxation state, and ΔB, Δ∅ respectively. 47.4% of MCT showed 1Y1B1G about 668 ㎐ stimulus and 52.6% of that showed 1Y3B1G. Resonance frequency of MFT was 829~1,213(1,021±192) ㎐, and the average of ΔB and Δ∅ was observed -0.18, -19.3 respectively.

고랭지 농업 용수확보를 위한 소규모 빗물 이용시설 적용방안

전계원(Kye Won Jun)(全桂元),장창덕(Chang Deok Jang)(張昌德),정승권(Seung Kwon Jung)(鄭承權),전병희(Byong Hee Jun)(田炳熙) 위기관리 이론과 실천 2013 Crisisonomy Vol.9 No.8

최근 기후변화로 지난 2009년과 2012년에 강원도 태백시에서는 가뭄으로 인하여 엄청난 피해를 경험한 적이 있다. 또한 가뭄과 장마의 예측은 점점 더 어려워져 가는 실정이다. 특히 태백시의 87일간의 가뭄과 제한급수에 따른 피해액은 일상생활 134억원, 산업부문 338억원, 공공부문 47억원, 정신적ㆍ사회적 피해 1, 430억원 등 총 1, 949억원에 달하는 것으로 분석되었다. 태백시에 또 다른 큰 문제점은 가뭄으로 인한 고랭지 농업 피해로 인한 손실이다. 고랭지 배추를 생산하는 태백시는 우리나라 유일의 고산지역의 도시로서, 고랭지 농업이 특히 발달한 지역이다. 특히 태백 고랭지 배추는 태백시 농산품의 95.9%, 총 경지면적의 86.6%를 차지하고 있으므로, 배추의 생산성이 태백시 농산품 생산성을 대변한다고 할 수 있다. 본 연구에서는 태백시의 공공기관과 고랭지 농업 지역을 직접 방문하여 소규모 빗물 이용 시설에 대한 현황조사 및 시설의 상태를 점검하고 가뭄발생시 고랭지 농업지역의 피해를 최소화 할 수 있도록 소규모 빗물 이용 시설의 적용 방안 및 효과를 분석하였다. Recently, drought and rainy season are getting more serious. It is getting hard to forecast about drought because drought frequency is getting shorter than before. In 2009(winter) and 2012(summer), Taebaek-si was suffered from enormous damage due to the drought. Particularly, in 2009, cost of damage due to drought and restriction on water supply for 87days were estimated daily life sector 134 billion won, industry sector 338 billion won, the public sector 47 billion won, mental and social damage 1, 430 billion won. The other big issue of Taebaek is decrease in products of Highland Agricultural caused by the drought. Highland chinese cabbage which is the most important agricultural product in Taebaek-si account for 95.9% of all agricultural production of Taebaek-si and account for 86.6% of all gross area. For this reason, chinese cabbage of Taebaek-si is tropical agricultural product and is in charge of supply cabbage definitely. It is considered that if small scale rainwater harvesting system would be installed in highland agriculture area, it could reduce damage of drought at low cost and damage of cabbage would be decrease by system. For this study, We have researched regarding current status of Small Scale Rainwater Harvesting System of Highland Agriculture area in Taebaek-si and have compared with the amount of damage and installation cost in case of drought for the beneficial effects of Small Scale Rainwater Harvesting System, flexible supply of water and damage minimization of agricultural products.

거푸집 일체형 외단열 갱폼시스템의 전단내력실험

김호수,정희범,김소연,박영석,원종덕 청주대학교 산업과학연구소 2016 産業科學硏究 Vol.34 No.1

The shear capacity is evaluated for the structural safety security of integrated gang form system for outer insulation. Therefore, this study presents the composition types of outer insulation system and evaluates the shear capacity for the several design cases. Through the results, we find out the influencing factors that affect the shear capacity.

Lesch-Nyhan 증후군을 가진 소아의 체외충격파신쇄석술을 위한 전신마취 경험

박상진,권일치,이원기,이덕희 영남대학교 의과대학 2008 Yeungnam University Journal of Medicine Vol.25 No.1

Lesch-Nyhan syndrome is an inborn error of purine metabolism resulting from hypoxanthine-guanine-phosphoribosyltransferase (HGPRT) deficiency and leading to excess purine production and uric acid over-production. It is a very rare X -linked recessive disorder, characterized by movement disorder, cognitive deficits, and self-injurious behavior. However, because of the high incidence of calculi, patients may present for surgery of urinary tract, and have increased risk of difficult intubation, aspiration pneumonia, renal insufficiency or sudden death. We report the case of a 5-year-old boy with Lesch-Nyhan syndrome who underwent successive extracorporeal shockwave lithotripsy under general anesthesia.

쇄골하정맥을 통하여 중심정맥도관 삽입 실패 후 나타난 혈흉 1예

김대영,김대우,손희원,박상진,이덕희 영남대학교 의과대학 2008 Yeungnam University Journal of Medicine Vol.25 No.2

Central venous catheterization via an internal jugular vein or subclavian vein has become a common procedure in monitonng CVP and managing severely ill patients. However, there have beennumerous reports of complications associated with central venous catheterization. These include vessel injury, pneumothorax, hemothorax, nerve injury, arrhythmias, artriovenous thrombosis, pulmonary embolism, and infection at the insertion site. We report a case of hemothorax after subclavian vein catheterization failure, along with successful treatment.

경기관지폐생검의 진단적 가치

이원식,정태훈,김교선,이국희,유덕종,손명원 대한내과학회 1986 대한내과학회지 Vol.30 No.2

The diagnostic value of transbronchial lung biopsy(TBLB) through fiberoptic bronchoscope was studied in 61 patients with diffuse or localized lung disease in which routine clinical and laboratory examinations revealed no diagnostic clue. By the technique adequate tissue specimen for diagnosis was obtainable in 28 of 33 patients (78.8 percent) and 25 of 28(89.3 percent) with localized and diffuse lung diseases, respectively. A histological diagnosis was possible in more than 75 percent of the patients with lung cancer proved by various means. On the other hand, in patients with tuberculous lesions, diffuse or localized, the incidence of positive diagnosis was less than a half. The complications among 61 patients underwent the TBLB were pneumothorax in one and hemoptysis in three, which subsided spontaneously. These facts suggest that the TRLB is a relatively safe, and more useful in the diagnosis of cancer of the lung than in inflammatory disease.

β-Carotene monooxygenase for retinol biosynthesis in metabolically engineered E. coli

Hee-Kyoung Ryu,Hee-Jung Jang,Sook-Hee Lee,Eun-Gyeong Lee,Chong-Long Wang,Amitabha Das,Deok-Kun Oh,Seon-Won Kim 한국생물공학회 2007 한국생물공학회 학술대회 Vol.2007 No.10

Transverse reinforcement for confinement at plastic hinge of circular composite hollow RC columns

Won, Deok Hee,Han, Taek Hee,Kim, Seungjun,Park, Woo-Sun,Kang, Young Jong Techno-Press 2016 Computers and Concrete, An International Journal Vol.17 No.3

Confined transverse reinforcement was arranged in a plastic hinge region to resist the lateral load that increased the lateral confinement effect in the bridge substructure. Columns increased the seismic performance through securing stiffness and ductility. The calculation method of transverse reinforcements at plastic hinges is reported in the AASHTO-LRFD specification. This specification was only proposed for solid reinforced concrete (RC) columns. Therefore, if this specification is applied for another column as composite column besides the solid RC column, the column cannot be properly evaluated. The application of this specification is particularly limited for composite hollow RC columns. The composite hollow RC column consists of transverse, longitudinal reinforcements, cover concrete, core concrete, and an inner tube inserted in the hollow face. It increases the ductility, strength, and stiffness in composite hollow RC columns. This paper proposes a modified equation for economics and rational design through investigation of displacement ductility when applying the existing specifications at the composite hollow RC column. Moreover, a parametric study was performed to evaluate the detailed behavior. Using these results, a calculation method of economic transverse reinforcements is proposed.

Position DOP Analysis for Sensor Placement in the TDOA-based Localization System

Deok Won Lim,Hee Won Kang,Sang Jeong Lee,Dong-Hwan Hwang 대한전기학회 2012 Journal of Electrical Engineering & Technology Vol.7 No.6

A relationship between the sensor placement and the PDOP (Position Dilution of Precision) is derived in the TDOA-based localization system. And the geometric condition of the sensor placement is analyzed in order to get a minimum PDOP based on the derived relationship. Through computer simulations, effect of the sensor placement on the PDOP is observed.