서울시 일부 지하철 역사 내 공기 중 진균 농도에 관한 연구

조준호,백남원,Cho, Jun-Ho,Paik, Nam-Won 한국환경보건학회 2009 한국환경보건학회지 Vol.35 No.6

This study was performed to assess airborne fungi concentrations during fall in eight subway stations in Seoul, Korea. The purpose of this study was to investigate appropriate culture media and evaluate factors affecting airborne fungi concentrations. Results indicated that airborne fungi concentrations showed log-normal distribution. Thus, geometric mean (GM) and geometric standard deviation (GSD) were calculated. The GM of airborne fungi concentrations cultured on malt extract agar (MEA) media was 466 $cfu/m^3$ (GSD 3.12; Range 113~4,172 $cfu/m^3$) and the GM of concentrations cultured on DG18 media was 242 $cfu/m^3$ (GSD 4.75; Range 49~6,093 $cfu/m^3$). Both of GM values exceeded 150 $cfu/m^3$, the guideline of World Health Organization (WHO). There was no significant difference between two fungi concentrations cultured on MEA and DG18 media, respectively. Two factors, such as relative humidity and depths of subway stations were significantly related to airborne fungi concentrations. It is recommended that special consideration should be given to deeper subway stations for improvement of indoor air quality.

심한 치아 마모와 수복 공간 부족을 보이는 환자에서 CAD/CAM 기술을 활용한 완전 구강 회복: 증례 보고

조준호,윤형인,여인성,한중석,Cho, Jun-Ho,Yoon, Hyung-In,Yeo, In-Sung,Han, Jung-Suk 대한치과보철학회 2019 대한치과보철학회지 Vol.57 No.4

본 증례는 다수의 치아 상실과 심한 치아 마모로 인해 교합 고경(occlusal vertical dimension)의 감소 및 수복 공간 부족을 보이는 환자에 대한 computer-aided design and computer-aided manufacturing (CAD/CAM) 기술을 활용한 완전 구강 회복 치료이다. 진단 단계에서 교합 고경에 대한 여러 분석을 통해 교합 고경 증가를 통한 완전 구강 회복을 계획하였다. 새롭게 설정된 교합 고경을 반영한 임시 수복물을 환자에게 적용하여 적응시키고, 이중 스캔 방법을 통해 임시 수복물의 정보를 최종 수복물에 옮긴 후, 3D 프린팅을 통해 금속 코핑을 제작하여 최종 고정성 금속 도재 수복물을 완성하였다. 이후 전자 서베잉과 3D 프린팅을 통해 가철성 국소의치 금속 구조물을 제작, 최종 가철성 국소의치로 환자치료를 완료하였다. 이러한 디지털 기술을 활용한 완전 구강 회복 치료로 환자는 기능적, 심미적으로 만족하였고, 술자는 임상적으로 받아들일 만한 치료결과로 판단하였다. This study reported the treatment of a patient with excessive worn dentition and limited maxillo-mandibular space for restoration, utilizing the computer-aided design and computer-aided manufacturing (CAD/CAM) technology. After the thorough examination of the patient's occlusal vertical dimension (OVD), full mouth rehabilitation was planned with increase of the OVD. The patient was satisfied with the provisional restorations establishing the increased OVD. The horizontal and vertical data of the patient's jaw relation that the provisional restorations contained were transferred to the definitive metal ceramic fixed prostheses by double scanning and three-dimensional printing. After the fixed restorations were cemented to the abutments, electronic surveying and three-dimensional printing were used to fabricate metal frameworks for the patient's removable partial dentures. The mandibular definitive removable prostheses were delivered to the patient's mouth and the full mouth rehabilitation procedures were completed. The digital technologies used for this case produced fixed and removable restorations satisfactory in masticatory, phonetic and aesthetic functions to both the patient and the dental clinician.

유기염소계 농약 중독 환자 임상 양상

조준호,오범진,서주현,권운용,박준석,어은경,이미진,이성우,노형근,박인철,Cho, Jun-Ho,Oh, Bum-Jin,Suh, Joo-Hyun,Kwon, Woon-Yong,Park, Joon-Seok,Eo, Eun-Kyung,Lee, Mi-Jin,Lee, Sung-Woo,Roh, Hyung-Keun,Park, In-Cheol 대한임상독성학회 2007 대한임상독성학회지 Vol.5 No.1

Purpose: To analyze the general characteristics and clinical aspects of the organochlorine intoxicated patients in Korea. Methods: We prospectively evaluated the organochlorine intoxicated patients visiting to the 38 emergency medical centers in Korea from the 1, Aug. 2005 to the 31, Jul. 2006. Results: There were 38 patients intoxicated by the organochlorine during the study periods. The mean age of patients was 55.1 years old. The mean amount of the organochlorine intoxicated is 246.1 mL. The most frequent place where the patients got and took the organochlorine was their home. Twenty eight patients(73.7%) intended to suicide. Nine patients out of 38 patients(23.7%) were died and they all intended to suicide. Conclusion: There were 38 patients intoxicated by the organochlorine during the study periods. The suicidal attempts and the number of the dead were higher in Korea than the developed countries.

흉추부에 발생한 거대 세포종 1예 - 증례보고 -

조준호,유수일,권영대,이용성,Cho, Jun Ho,Yoo, Soo Il,Kwon, Young Dae,Lee, Yong Sung 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.7

The giant-cell tumor is uncommon. It occurs in the long bones and vertebral localization is much less common, particularly in thoracic spine. We present a case of a 37-year-old man suffering from severe back pain. Affected vertebral bodies were removed by transthoracic approach and the spine was reconstructed with iliac bone autografts and internal fixation device(Kaneda) between T 8 and T 11. Histologoical diagnosis was giant-cell tumor, and pertinent literature was reviewed.

저전력 고밀도 CMOS XOR 및 XNOR 회로 설계

조준호(Jun-Ho Cho),이재엽(Jae-Yup Lee),이승훈(Seung-Hoon Lee) 대한전자공학회 1995 대한전자공학회 학술대회 Vol.1995 No.12

연구논문 : 예측식을 이용한 철도방음벽의 성능평가에 관한 연구

조준호 ( Jun Ho Cho ),고효인 ( Hyo In Koh ) 한국환경영향평가학회 2010 환경영향평가 Vol.19 No.6

Railway noise barrier is generally used with welding of joint rail for railway noise reduction in our country. In this study, method for performance evaluation of railway noise barrier using insertion loss was suggested in case of without having noise measurement results before barrier installation. For this, railway noise measurements were performed in commercial high-speed railway site which has railway noise barrier. As a noise level before noise barrier installation, predicted noise level were used. From this method the performance evaluation for railway noise barrier were performed accurately and efficiently.

효율적인 비디오 브라우징 및 검색을 위한 통합 멀티미디어 응용 형식

조준호 ( Jun Ho Cho ),진성호 ( Sung Ho Jin ),양승지 ( Seungji Yang ),노용만 ( Yong Man Ro ) 한국정보처리학회 2005 한국정보처리학회 학술대회논문집 Vol.12 No.2

본 논문에서는 MPEG 의 멀티미디어 응용 표준인 MAF(Multimedia Application Format)를 기반으로, 효율적인 비디오 콘텐츠의 검색 및 활용을 위한 통합 미디어 구조, 즉 비디오 MAF 를 제안한다. 제안하는 비디오 MAF 는 ISO 미디어 포맷을 기반으로 하고 단일의 비주얼 스트림과 다중 음성을 지원하기 위한 다수의 오디오 스트림, 내용기반의 정보를 포함하는 메타데이터, 그리고 비디오 콘텐츠의 대표 이미지를 동시에 포함하는 구조이다. 제안하는 파일포맷의 유용성을 검증하기 위해 비디오 MAF 로 생성 및 해석할 수 있는 부호기(encoder)와 복호기(decoder)를 설계하고 구현하여, 통합 미디어에 내재된 메타데이터를 이용한 효율적인 검색과 멀티트랙의 오디오 스트림을 활용한 다중 음성에 대한 지원이 가능함을 확인하였다. 또한 내재된 대표이미지는 비디오 콘텐츠에 대한 브라우징이 효과적으로 활용됨을 확인하였다.

영상 검색을 위한 MAF 기반 통합 미디어에 관한 연구

조준호(Jun Ho Cho),진성호(Sung Ho Jin),양승지(Seungji Yang),노용만(Yong Man Ro) 한국멀티미디어학회 2005 한국멀티미디어학회 학술발표논문집 Vol.2005 No.1

능동형 리어 디퓨져 장치를 이용한 고속 주행 시 승용차의 공기저항 감소 기법에 관한 연구

조준호(Jun-Ho Cho),강승은(Seung-On Kang),박훈일(Hoon-Il Park),송기선(Ki-Sun Song),기정도(Jung-Do Ki),김규홍(Kyu-Hong Kim),이동호(Dong-Ho Lee) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11

This paper suggests a technique that reduces aerodynamic drag of a fast cruising passenger car using actively translating rear diffuser. Actively translating rear diffuser is hidden under the trunk when a passenger car is parked and is driven slowly. And it slides out from under rear car body only at high speed driving condition not to ruin the external design of the car. 5 types of rear diffuser devices whose slid out lengths are ranging from 200mm to 450mm were installed under the car body and Computational Fluid Dynamics (CFD) analyses were performed under moving ground and rotating wheel conditions. The main purpose of this study is to explain the aerodynamic drag reduction mechanism of a passenger car cruising at a high speed via an actively translating rear diffuser device and find a length which shows the best aerodynamic performance. The diffuser device raises pressure of underbody flow with diffusing process and then underbody flow and upperbody flow mix strongly. They make strong vortices and the vortices hit the rear surface of the trunk, bringing about an aerodynamic drag reduction. Finally, aerodynamic drag of the passenger car is reduced by an average of more than 5%, which helps to improve the fuel efficiency.

대한민국 남자레슬러의 올림픽 참가사(參加史)

조준호 ( Jun-ho Cho ) 한국체육사학회 2015 체육사학회지 Vol.20 No.4

본 연구는 대한민국 남자레슬러의 올림픽 참가사를 살펴보고 그 의미를 체육사적으로 살펴보고자 하였다. 연구의 결과는 다음과 같다. 첫째, ``올림픽 참가기``에는 한국전쟁 중에도 올림픽에 참가하는 열정을 선보인 한국 팀은 결국 1964년 동경올림픽대회에서 장창선이 은메달을 획득한다. 그의 메달은 국민체육진흥기금의 신호탄이 되었다. 둘째, ``올림픽 급성장기``에는 시련을 뚫고 1976년 몬트리올에서 양정모가 금메달, 전해섭이 동메달을 획득하며 한국레슬링의 성장세를 세계에 과시했다. 양의 메달은 한국체육대학교 설립의 계기가 되었다. 셋째, ``올림픽 세계화기``에는 김원기를 시작으로 한명우, 김영남, 박장순, 안한봉 등의 금메달리스트가 등장하며 한국레슬링의 세계화를 실천한다. 넷째, ``올림픽 과도기``에는 한국레슬링의 어려움 속에 심권호와 정지현만이 금메달의 맥을 이어간다. 마지막으로 ``올림픽 재도약기``에는 김현우가 등장하며 남자레슬링의 또 다른 재도약을 실현했다. 대한민국 남자레슬러의 역사는 항상 한국체육의 선두이자 중심이었다. This study shows Korean male wrestlers participation in the Olympics and its meaning in the history of Korean sports. The study result is as follows. First, in the Olympic participation period, Korean wrestlers participated in the games even during the Korean War. In 1964 Tokyo Olympic Games, Jang Chang Sun won the silver medal. His medal was the starting signal of national sports promotional funds. Second, during the rapid growth period in the Olympics, Yang Jung Mo won the gold medal and Jeon Hae Seop won the bronze medal in 1976 Montreal Olympics showing the growth of Korean wrestling. Their medals contributed to the establishment of Korean National Sport University. Third, during the globalization of Olympics, there were gold medalists such as Kim Won ki, Han Myung Woo, Kim Young Nam, Park Jang Soon and Ahn Han Bong showing off the Korean wrestling in the world. Fourth, during the transition period of Olympics, Sim Kwon Ho and Jung Ji Hyun appeared continuing to mine the gold medals. Lastly, during the progress period, Kim Hyun Woo appeared. It means another progress of Korean male wrestling. The history of Korean male wrestling was always in the front and center of Korean sports.