수열합성법으로 성장된 ZnO 나노로드 가스 센서의 제작 및 특성 연구

정종훈,유일,Jong, Jong-Hun,Yu, Il 한국재료학회 2011 한국재료학회지 Vol.21 No.4

ZnO nanorods for gas sensors were prepared by a hydrothermal method. The ZnO gas sensors were fabricated on alumina substrates by a screen printing method. The gas-sensing properties of the ZnO nanorods were investigated for $CH_4$ gas. The effects of growth time on the structural and morphological properties of the ZnO nanorods were investigated by X-ray diffraction and scanning electron microscope. The XRD patterns of the nanocrystallized ZnO nanorods showed a wurtzite structure with the (002) predominant orientation. The diameter and length of the ZnO nanorods increased in proportion to the growth time. The sensitivity of the ZnO sensors to 5 ppm $CH_4$ gas was investigated for various growth times. The ZnO sensors exhibited good sensitivity and rapid response-recovery characteristics to $CH_4$ gas, and both traits were dependent on the growth time. The highest sensitivity of the ZnO sensors to $CH_4$ gas was observed with the growth time of 7 h. The response and recovery times were 13 s and 6 s, respectively.

X밴드 이중편파레이더를 활용한 고양 토네이도 발생 사례 분석

정종훈,김연희,김기훈,임은하,주상원 한국기상학회 2015 한국기상학회 학술대회 논문집 Vol.2015 No.10

비화농성 삼출성 복수를 동반하는 질환에서 복막 침생검의 진단적 의의

정종훈,서용태,오덕환,채종구,정춘해,조건국 朝鮮大學校 附設 醫學硏究所 1986 The Medical Journal of Chosun University Vol.11 No.1

Percutaneous needle biopsies of peritoneum with Abrams needle and Cope needle were done un 64 patients with non-purulent exudative ascites, who was admitted to the department of internal medicine, Chosun University hospital, from January 1978 to Deccmber 1983. The diagnostic significance and safety of the needle biopsy was estimated. The results were as follows. 1. Adequate peritoneal tissue for pathological diagnosis was obtained in 53 cases(82.8%) among 64 cases. (Abrams needle 84.8%, Cope needle 80.6%) 2. Definitive diagnosis was obtained in 31 cases among 53 cases (58.6%). (Tuberculosis 23 cases, malignancy 8 cases). 3. As compared final diagnosis with biopsy result, the rate of final diagnosis corresponding with biopsy diagnosis was 58.8% in tuberculosis and 26.3%, in malignancy, but the rate of biopsy diagnosis corresponding with final diagnosis was 100% in both tuberculosis and malignancy. 4. Cases of chronic non-specific inflammation which were diagnosed by biopsy were 13cases(24.5%)among 53 cases, and among these cases, tuberculosis was 69.2% and malignancy 30.8% on final diagnosis and among 53 cases, histologically normal was 9 cases(16.9%) of which 33.3% was tuberculosis and 66.7% was malignancy on final diagnosis. 5. Of the malignant cases on final diagnosis, Positive cytologic examination of ascitic fluid was 16.7% 6. Primary losions of cancerous peritonitis were stomach cancer (38.9%) hepatocellular cancer(22.2%) colon cancer (11.1%) ovarian cancer (11.1%) Pancreatic cancer (5.6%). 7. Complication of percutaneous peritoneal biopsy was local swelling with leakage of ascitic fluid and the accident rate were 36.4,% in Abraham needle and 3.2% in Cope needle.

사회교육원 스포츠참가자의 여가행동에 관한 연구

정종훈,안종학 東亞大學校附設스포츠科學硏究所 2002 스포츠科學硏究論文集 Vol.20 No.-

This research intends to compare and analyze the leisure behavior of the participants of living sports programs provided by social education centers(or lifelong education centers) attached to some universities. It also aims to reveal what the program customers want to be improved in program management as the basic data for the successful activities of the centers to meet local residents' diverse desires and 'needs. The subjects were 506 members in the centers' sports facilities in the Busan area, and the questionnaire method was adopted and statistically treated. The results throught the analytical are as the follows. 1. Demographically speaking, there were 207 males (40.9%) and 299 females (59.1%). Those in their 20s were 148 (29.2%), 30s 189 (37.4%), 40s 122 (24.1%), and above 50s 47 (9.3%). So people in their thirties show the greatest participation rate. The sports program members by job division were in the order of housewives (168, 33.2%), office workers (146, 28.9%), students (91, 18.0%), independent enterprisers (76, 15.0%), and administrators (25, 4/9%). 2. The most popular sports program was swimming (221, 43.7%), followed by physical fitness training (179, 35.4%), tennis (42, 8.3%), aerobics (30, 5.9%), squash (28, 5.5%), and sports dance (6, 1.2%). By consumption patterns, 27 used lifelong membership, 90 ticket membership, and 389 short-term membership. 3. In their leisure satisfaction after joining the programs, some significance was noted in leader quality(by age), convenience(by sex), and facilities(by job, and marital status). Above all, the factor of the leader's characteristics showed the greatest score and proved to be the most vital factor. In conclusion, leader quality serves as a very important factor in Leisure Behavior of Sport Participants at Social Education Center. So the program leader should be able to deliver theoretical knowledge and practical skills systematically and gradually. In this way, sports program consumers will continue to use various programs, while the social education centers can have an affirmative influence on the progress of regional society.

유질향상을 위한 "원유품질개선 점검표"의 효과적 활용방법

정종훈 한국종축개량협회 1995 種畜改良 Vol.17 No.3

Carbamazepine에 의한 급성 간질성 신염 1예

정종훈,김영곤,권용은 대한신장학회 2000 대한신장학회잡지 Vol.19 No.6

3價 6價 크롬이 培養생쥐 纖維母細胞 미치는 細胞毒性에 關한 硏究

정종훈,金在玟,崔玟圭,鄭然泰 圓光大學校 醫科學硏究所 1987 圓光醫科學 Vol.3 No.1

This study was performed to investigate the cytotoxicity of the chromium ion on the mouse fibroblast L cell line. The effects of chromium ion (Cr^3+, Cr^6+) on the cell proliferation and the total amount of protein in cultured cells were investigated at various concentrations of chromium ion. The results were as follows ; 1. Cell proliferation and the total amount of protein were not influenced at 1 ppm, 5ppm and 10ppm in Cr^3+ - treated medium. 2. In 0.05 ppm containing medium, cell proliferation and the total amount of protein were not changed comparing with control group, but in 0.1ppm containing medium, they were slightly inhibited and completely inhibited at 0,5ppm in Cr^6+ - treated medium. From these results, it is suggested that the cell proliferation and protein synthesis were inhibited markedly by Cr^6+ rather than by Cr^3+

윤리적 측면에서 본 운동수행중의 도핑에 관한 연구

정종훈 東亞大學校附設스포츠科學硏究所 1996 스포츠科學硏究論文集 Vol.14 No.-

Drug use in athletes is one of the more serious problem in the World. The purpose of this study is to clarify the problem of doping on performance in sports from the stand point of sport ethics. The use of drugs in sports is not new. According to Cooper, the first recorded death from drug usage in sports occured in the 1890s when a British cyclist who was using ephedrine to improve his performance died as a result. There has been much discussions about the possible solution of the drug problem in athletes. We suggest three ways to deal with the problem : education programs and counseling, crack-downs on drug users and peddlers within sports, and the encouragement of experiencing competition in Sports.

효과적인 학원선교와 패러다임의 변화

정종훈 국제기독교언어문화연구원 2014 기독교언어문화논집 Vol.17 No.-

장공 김재준의 신학여정과 생활신앙의 기독교윤리

정종훈 연세대학교 신과대학 2005 신학논단 Vol.39 No.-