환기정도에 따른 수술실용 신발 종류가 수술실 오염에 미치는 영향 : How to Choose Suitable Shoes?

남경동,정혜선,박영신,원진희,주미자,성화신,이지혜,이병희,조경숙,배재춘 한국의료QA학회 2000 한국의료질향상학회지 Vol.7 No.1

Background : Various types of protective footwear have been used to minimize bacterial contamination in operating rooms. In recent years, debate has arisen concerning the need for use of such protective footwear. This study was designed to provide useful data about choosing shoes most suitable for the surgical environment. Methods : Between November, 1999 and January, 2000, we performed this experimental study by comparing effect of three types of shoes (i.e., disposable shoescover, operating room-restricted shoes, and ordinary shoes) on bacterial contamination of operating rooms equipped with two different ventilation systems (i.e., high air-change, low air-change) respectively. Data were collected during two-hour sham operations in which subjects and their activities were strictly standardized. Bacterial flora were sampled from the study area floor and air colony-counts were measured. Results : In experiments involving high air-change ventilation system, there was a significant difference of floor contamination between three types of shoes, but no difference of air contamination. Under low air-change system, there was a significant difference of both floor and air contamination between three types of shoes. Conclusion : The results show that protective footwear would be unnecessary in the operating room with high air-change ventilation system, but it is important to choose suitable shoes carefully under low air-change system. Therefore, the use of outdoor shoes can be considered under high air-change system, but it would seem sensible to apply their first use in less bloody operations at the day surgery center or out-patient department to prevent transfer of body fluid into the outside environment.

만성 간염과 간경변증의 고해상 초음파 소견

정덕환,구봉식,최종철,박병호,남경진 동아대학교의과대학 1997 동아의대학술지 Vol.9 No.2

체육 서비스조직의 리더십유형과 직무만족 및 조직유효성 간의 관계

천길영,남궁완,최병학,박효찬,홍승달,정석현 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

The purpose of the study was to examine the relationship among style of leadership, job satisfaction, and efficacy of sport service organization. In order to achive this purpose three reaserch questions were established. Participants for this study were 300 of 23-50 overaged public workers. Of participations valid data were 279. They completed a modified inventory of the style of leadership, job satisfaction and efficacy of sport service organization. More details, style of leadership Scale modified by Ahn(2000), job satisfaction by Ahn (2000) and efficacy of sport service organization by Kim(2001) were using after remodifing scale to investigate the purpose of this study. Results were analysed in quantitative approaches. Data were collected through self-administered survey. The most three meaningful results of the study were as follows; First, there was influenced to relationship between style of leadership and job satisfaction. Second, there was influenced to relationship between style of leadership and efficacy of sport service organization. Third, there was influenced to relationship among style of leadership, job satisfaction, and efficacy of sport service organization.

WE DSP32 디지탈 신호처리기를 이용한 LPC해석 및 합성 알고리즘의 실시간 실현

홍춘표,황병곤,남인길 대구대학교 (한사대학) 산업기술연구소 1994 産業技術硏究 Vol.13 No.-

The WE DSP32 in AT&T's second-generation programmable digital signal processor with 32-bit floating point arithmetic. This device can be used in a wide varity of complex digital signal processing algorithms such as speech recognition,high speed modems, low-bit rate voice coders, and multichannel signaling system. This paper reviews the LPC analysis and synthesis of speech signal and presents a real time implementation methodology of these algorithms using the WE DSP32. For efficient data handling, circular buffer is proposed. The implementation results show that deep pipelining characteristics of the processor should be fully utilized to satisfy the timing constraints,

전기로 분진에서 납의 휘발반응에 대한 속도론적 연구

김병수,유재민,이재천,남철우,윤정모 대한금속재료학회 2004 대한금속·재료학회지 Vol.42 No.4

"he removal of lead from electric arc furnace (EAF) dust is important in the process for recovering zinc by a reduction-volatilization method. In this study, experiments on kinetics of the volatilization reaction of lead by chlorine components as NaCl and KCl contained in the EAF dust were carried out in the temperature range of 973 to 1223 K under an air atmosphere using a weight-loss technique. As a result, the volatilization ratio of lead was about 99.0% at the temperature of 1223 K and the reaction time of 180 min. Jander equation was found to fit well the volatilization reaction rate over the entire temperature range. The volatilization reaction of lead is rate controlled by solid-solid diffusion. An activation energy of 175 kJ/mol(41.8 kcal/mol) was obtained. (Received January 8, 2004)

반건식-백필터에 의한 소각배가스 중의 HCI, SOx 제거 (Ⅰ)

배병훈,신남철,고경숙,김춘희,문종익,임경택 동아대학교 환경문제연구소 1997 硏究報告 Vol.20 No.1

This study has been carried out to investigate the removal efficiencies of HCl/SOx in a Spray-Dryer/Fabric-Filter system. In HCl/SOx removal, we could identify the key factors such as spray dryer outlet temperature, molar equivalence ratio(MER) and fabric filter velocity, but we couldn't find out the correlation of HCl and SOx. The removals of HCl/SOx were inversely proportional to spray dryer outlet temperature(l30~170℃) and filter velocity(l.0~1.5 m/min), at the MER, HCl removal efficiency was strongly proportional to MER, but SOx, removal efficiency was not particularly increased by MER over 1.5. The removal efficiencies of HCl/SOx were improved over 10% at the fabric filter. In this Spray-Dryer/Fabric-Filter system, HCl/SOx removal efficiencies were about 99%, 96% respectively.

국내에서 유행하는 HIV의 전파 경로에 따른 Subtype 분포

이주실,남정구,김성순,강춘,최병선,김옥진,박미선,성봉모,서순덕,전수경,변승옥,신영오,조해월 대한감염학회 2001 감염 Vol.33 No.5

Background : Previous data have been reported that subtype B is prevalent in South Korea, but neither the extent nor the proportion of subtypes could be evaluated. This study was designed to analyze the distribution of HIV-1 subtypes, temporal instructions and transmission dynamics between epidemiological groups. Methods : 1,280 Koreans had been diagnosed as HIV seropositive during the period 1985 to 2000. Among them, 134 individuals were selected for this molecular epidemiological study. 134 DNAs were isolated from uncultured or cultured peripheral blood mononuclear cells. V3-V5 (0.7 kb) fragment of HIV-1 env gene was amplified by nested polymerase chain reaction and was sequenced. Results : HIV-1 isolates from thirty-seven homosexuals were all subtype B (100%). On the other hand, 66 isolates from 94 heterosexuals were subtype B (70%) and 28 were non B subtypes (30% : 13 A, 4 C, 2 D, 8 E , 1 G). Only subtype B strains were isolated from 73 males who were infected with HIV inside Korea while 16 B and 20 non B subtype strains were isolated from 36 males who were HIV infected outside of Korea. However, B and non B strains were isolated half and half from females who were infected inside Korea except one. Conclusion : The HIV-1 subtype B strains are prevalent in Korea from the early HIV infection until present in both homo and heterosexuals. Non B strains have been transmitted from men who were infected outside Korea to their spouses and casual partners. So, we need further study to monitor subtype B and non B HIV transmission in epidemiological groups of Korea, (Korean J Infect Dis 33:311∼318, 2001)

정신분열증 환자의 혈청내 Haloperidol과 Prolactin 함량에 관한 연구

연병길,한규희,양병환,김철규,전남호 漢陽大學校 精神健康硏究 1985 精神健康硏究 Vol.3 No.-

세포탐식성 조직구성 지방층염

천병남(Byung Nam Chun),신현주(Hyun Joo Shin),유희준(Hee Joon Yu),손숙자(Sook Ja Son) 대한피부과학회 1989 대한피부과학회지 Vol.27 No.5

We describe a case of typical cytophagic histiocytic panniculitis occuring in 10-year-old male. He had recurrent subcutaneous nodules, fever, pancytopenia and abnormal liver function tests since 5 months of his age, and recently showed hemorrhagic diathesis. The histologic picture showed lobular histiocytic panniculitis with bean bag cytophagic cells.

원형 탈모증의 임상적 고찰 ( 제 V 보 )

전병환 ( Byung Hoan Chun ),김명남 ( Myeung Nam Kim ),홍창권 ( Chang Kwun Hong ),노병인 ( Byung In Ro ) 대한피부과학회 1998 대한피부과학회지 Vol.36 No.5

Background: Alopecia areata, especially when severe, often profoundly affect the lives of those afflicted. Unfortunately, the clinical features and therapeutic results of alopecia areata are variable and unpredictable. Objective : The authors performed a study on alopecia areata in order to evaluate the clinical manifestations and the effects of treatment with intralesional injections of triamcinolone acetonide suspension, immunotherapy with diphenylcyclopropenone(DPCP) and combination therapy of intralesional injections of triamcinolone acetonide suspension and immunotherapy with DPCP. Methods : A clinical study of 357 patients with alopecia areata was performed fram March l994 to February l996 at the Department of Dermatology, Yongsan Hospital, College of Medicine, Chung- Ang University. Results : 1) The age distribution showed a peak incidence in the third decade(36.1%) and the average age was 27.6 years. 2) The most common site of predilection was the occipiital region in both male and female, which were 127 cases(73.0/o), 89 cases(64.5%) respectively. 3) The relapse rate was 26.1%. 4) The farnily histories were significant in 37 cases(10.4%). 5) Associated diseases with alopecia areata were seborrheic dermatitis, atopic dermatitis, hepatitis, diabetes mellitus, urticaria, allergic dermatitis, etc in 117 cases(32.8%). 6) The therapeutic effect in cases of bald areas treated with intralesional injections of triamcinolone acetonide, immunotherapy with DPCP and combination therapy revealed no difference based on increases in the size and number of bald areas. Conclusion '. These findings suggest that alopecia areata prominently develops in the third decade, when the severity of alopecia areata increases and the therapeutic effect decrenses. There was no difference in the therapeutic effect on the size & number of balded areas. (Korean J Dermatol 1998;36(5): 877-886)