한국인 직무 스트레스 측정도구의 개발 및 표준화

장세진,고상백,강동묵,김성아,강명근,이철갑,정진주,조정진,손미아,채창호,김정원,김정일,김형수,노상철,박재범,우종민,김수영,김정연,하미나,박정선,이경용,김형렬,공정옥,김인아,김정수,박준호,현숙정,손동국 大韓産業醫學會 2005 대한직업환경의학회지 Vol.17 No.4

Background and Purposes: Over the past three decades, numerous studies performed in Korea have reported that job stress is a determinant risk factor for chronic diseases and work disability. Every society has its own culture and occupational climate particular to their organizations, and hence experiences different occupational stress. An occupational stress measurement tool therefore needs to be developed to estimate it objectively. The purpose of this study is to develop and standardize the Korean Occupational Stress Scale (KOSS) which is considered to be unique and specific occupational stressors in Korean employees. Subjects and Methods: Data were obtained from the National Study for Development and Standardization of Occupational Stress (NSDSOS Project: 2002-2004). A total of 12,631 employees from a nationwide sample proportional to the Korean Standard Industrial Classification and the Korean Standard Occupational Classification were administered. The KOSS was developed for 2 years (2002-2004). In the first year, we collected 255 items from the most popular job stress measurement tools such as JCQ, ERI, NIOSH and OSI, and 44 items derived from the a qualitative study (depth interview). Forty-three items of KOSS, in the second year, were retained for use in the final version of the KOSS by using Delphi and factor analysis. Items were scored using conventional 1-2-3-4 Likert scores for the response categories. Results: We developed eight subscales by using factor analysis and validation process: physical environment (3 items), job demand (8 items), insufficient job control (5 items), interpersonal conflict (4 items), job insecurity (6 items), organizational system (7 items), lack of reward (6 items), and occupational climate (4 items). Together they explained 50.0% of total variance. Internal consistency alpha scores were ranged from 0.51 to 0.82. Twenty-four items of the short form of the KOSS (KOSS-SF) were also developed to estimate job stress in the work setting. Because the levels of the subscales of occupational stress were gender dependent, gender-specific standard norms for both the 43-item full version and the 24-item short form using a quartile for the subscales of KOSS were presented. Conclusion: The results of this study suggest that KOSS might be an appropriate measurement scale to estimate occupational stress of Korean employees. Further and more detailed study needs to be conducted to improve the validity of this scale.

무용교육 기대효과에 따른 제요인에 관한 연구

정행도,박근희 명지대학교 예체능연구소 2003 藝體能論集 Vol.14 No.-

The purpose of this study was to identify effects of expectation whose are majonng in dance In order to get data, Self-administrated questionnaire was employed students(total 169 male 93%, female 93%) which major in dance in seoul & kyungki province. All data were analyzed by two-way ANOVA. The results of the research follow. 1. The effects of expectaion of dance education about increased physical fitness were differenciated from each university, The effects of expectation of dance education about increased physical fitness development were high in physical educatuon colleage. because they tried find in physical capacity development of dance education. 2. The effects of expectation about increased were high in art colleage because they tried find in physical capacity development of dance education. Also, the students who major in dance in art colleage focused in increasing quality of art. 3. The increasing of social through dance education were low expected value in university, year and minor major. The results showed the students who irujor in dance in art colleage thought uneffected dance education on increasing quality of social

경남 일부지역 농민들의 수면습관

정근화,손진욱 大韓神經精神醫學會 1996 신경정신의학 Vol.35 No.6

In order to investigate the sleep habits of farmers in a rural area, we studied 270 subjects(farmers) in a rural area from August 14, 1995 to August 19, 1995. Sleep habits were analyzed according to age groups(3 groups of 18-30, 31-50, over 51 years) and sex. The results were as follows : 1) The mean sleep length was 6.7±1.5 hours, and was longer in female than in male. In the above 51-year-old age group, sleep length was significantly shorter than those in the other two age groups. 2) The mean sleep latency was 21.6±21.5 minutes, and was longer in female than in male. There were no significant differences in sleep latency among age groups. 3) The sleep onset time was later in the 18-30-year-old age group than in the other two age groups. The awakening time was earlier in the over 51-year-old age group than in the other two age groups. 4) One hundred and four subjects(38.5%) complained difficulty falling asleep, 196 subjects(72.6%) complained fragmented sleep, and 86 subjects(31.9%) complained early morning awakening during the past two weeks. Difficulty falling asleep and fragmented sleep were more common in females than in male. 5) One hundred and seventeen subjects(43.3%) had napped during the past two weeks and there were no significant differences among age groups. 6) One hundred and sixty five subjects(61.1%) experienced daytime drowsiness during the past two weeks and there were no significant differences among age groups. 7) Ninety-one subjects(33.7%) reported nightmares, 32 subjects(11.9%) reported sleeptalking 3 subjects(1.1%) reported sleepwalking, and 15 subjects(5.6%) reported bruxism during past two weeks.

소음 측정을 통한 에어컨 실내기 자기음 검출 및 진단

지효근,정호제,김정현 경성대학교 공학기술연구소 2012 공학기술연구지 Vol.18 No.-

This paper presents the detection and diagnosis of air-conditioner electromagnetic sound through noise measurements. Electromagnetic sound originating from the motor is an unpleasant source of unwanted noise that should be detected at the manufacturing stage. A detection system using sound measurements was built and a detection algorithm based on FFT analysis is presented. Soun measurements are preferable over direct vibration measurement because it is non-contact and low cost. Experimental results show that our sound measurement system can detect electromagnetic sound effectively compared to using vibration measurements.

수입각증후군에 의한 급성 복증 1례

정은욱,지삼룡,이영태,박지훈,김동기,제인수,채두근,박성재,박은택,이연재,이상혁,설상영,정정명 白中央醫療院 2005 仁濟醫學 Vol.26 No.1

Afferent loop syndrome is an uncommon complication of a gastrectomy and Billroth Ⅱ reconstruction. It may cause symtoms at any time from the first postoperative day to many years after the gastrectomy. Afferent loop syndrome is characterized by abdominal pain, vomiting and elevation of serum amylase. Thus, it is difficult to differentiate afferent loop syndrome from other cause of acute pancreatitis. However, the history of gastrectomy can be an important clue for diagnosing afferent loop syndrome. We experienced one case of chronic afferent loop syndrome with acute pancreatitis. After appropriate management, the abdominal pain disappeared and serum amylase level decreased. We report this case with a review of relevant literatures.

물-공기 계면에서 긴 사슬 양 말단 작용기 분자인 α,ω-13,16-Dimethyloctacosanedioate Dimethylester(C_30DME)의 거동에 관한 연구

이정근,손대원,이관수,송석호,김현명,정선호 한양대학교 자연과학연구소 2001 自然科學論文集 Vol.20 No.-

물-공기 계면에서 표면압력의 증가에 따른 C30DME 분자의 구조 변화를 살펴보았다. 표면압력(π)-표면적(A) 등온선을 통해 표면적이 줄어들 때 C30DME 분자가 선형으로부터 역 U 자형 구조로 변하는 것을 확인하였다. C30DME의 역 U 자형 구조의 형성을 확인하기 위하여 Surface Plasmon Resonance (SPR)와 ellipsometry를 이용하여 Langmuir-Blodgett (LB) film 의 두께를 측정하였고 이 두께는 C30DME 분자의 역 U 자형 구조의 높이와 일치함을 관찰하였다. 또한 Atomic Force Microscope (AFM)을 이용한 표면 거침도 측정의 결과는 선형으로부터 역 U자형 구조로의 구조적 변화가 불연속이라는 것을 보여주었다. We investigated the conformational change of C30DME molecule with an increase on surface pressure at the air-water interface. The surface pressure (π)-area (A) isotherm indicates that the structure of C30DME changed from linear to reverse U-shape as the surface area was compressed. In order to confirm the formation of reverse U-shape, we examined the thickness of Langmuir-Blodgett (LB) film by a surface plasmon resonance (SPR) and an ellipsometry. The result of surface roughness measurement using an atomic force microscope (AFM) showed that the conformational change from linear to reverse U-shape is discontinuous.

2종의 Ferrite가 혼합된 페라이트/ 고무 복합형 전파흡수체의 전파흡수특성

김한근,이수호,손무헌,박정학,사공 건 東亞大學校 1997 東亞論叢 Vol.34 No.-

In this study, the ferrite/rubber composite microwave absorbers mixed Ni-Zn ferrite and Ni₂Y ferroxplanna were prepared in order to control matching condition. The variation of the material constants(ε*, μ*) and microwave absorbing characteristics were investigated with various ferrite mixing ratio. The material constants of ferrite/rubber composite microwave absorber could be controlled by variation ferrite mixing ratio.

평엔드밀의 5축 가공데이터 생성 시 효율적인 공구간섭 처리에 관한 연구

이정근,박정환 영남대학교 공업기술연구소 2000 工業技術硏究所論文集 Vol.28 No.2

In the paper, we proposed and implemented several auxiliary models(non-interfered map, bucket-map) to reduce the computation time for correcting the cutter-interference in generating 5-axis flat-end milling tool-path based on a z-map model. The quantitative test results some sample cases showed that the auxiliary models mostly reduce the overall computation time for tool-path generation. Also, the proposed algorithms can be extended to more general part-surface shapes which can not be represented in a simple z-map form.

2개의 분리판 사이에서 분사되는 평행 3중 분류에 의한 비정상 난류 유동장 해석

유근종,최훈기,정지훈 國立 昌原大學校 產業技術硏究院 2004 産技硏論文集 Vol.18 No.-

LES is applied to analyze unsteady turbulent triple-jet water flows which are commonly found in thermal stripping phenomena. Current analyses performed to find effect of different SGS models on flow field with partition plates. LES tends to predict higher level of RMS temperatures compared to those of experiment indicating very active mixing effect among triple jets. The LES is found to be able to provide reliable frequency information of temperature fluctuation. The different SGS models show no significant difference in prediction ability, while Smagorinky-Lilly model yields slightly stronger mixing activity.

韓國民家建築에 表現된 地域性에 관한 硏究 : 南東海岸地方의 民家型을 中心으로

윤정근,권영민 경남정보대학 1998 論文集 Vol.26 No.1