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확산포집기를 이용한 공기 중 유기용제 포집에 관한 연구
박미진,백남원,윤충식 한국산업위생학회 1994 한국산업보건학회지 Vol.4 No.2
The purpose of this study was to evaluate the efficiency of diffusive(or passive) sampler in measuring airborne organic solvents. Diffusive samplers are generally simple in construction and do not require power for operation. The efficiency of the diffusive samplers has not sufficiently been investigated in Korea. Three types of samplers were studied in this study. The sampling and analytical results by passive samplers were compared with results by charcoal tube method recommended by NIOSH(National Institute for Occupational Softy and Health). The following characteristics are identified and studied as critical to the performance passive monitors; recovery, reverse diffusion, storage stability, accuracy and precision, face velocity and humidity. n-Hexane, TCE(trichloroethylene) and toluene were used as test vapors. A dynamic vapor exposure system consisting of organic vapor generator and sampling chamber for evaluating diffusive samplers are made. The results of the study are summarized as follows. 1. NIOSH recommends that the overall accuracy of a sampling method in the range of 0.5 to 2.0 times the occupational health standard should be ±25 percent for 95 percent confidence level. Among three types of diffusive sampler, sampler A has permeation membrane and samplers B and C have, diffusive areas, samplers A and B met the criterion that overall accuracy for 95% confidence level of the samplers were within ±25 percent of the reference value. Sampler C had overall accuracy ±9.6% and ±11.8% in hexane and TCE, respectively. The concentration of toluene was overestimated in sampler C with overall accuracy of 43.9%. 2. The desorption efficiencies of diffusive samplers were 96-107%. 3. There was no significant sample loss during four weeks of storage both with and without refrigeration. 4. There was no significant reverse diffusion, when the samplers were exposure to clean air for 2 hours after sampling for 2 hours at the level of 2 TLV. 5. In case of 8 hours sampling, relative differences(RD) of concentrations between charcoal tube method and diffusive method were 15-39%, 13-46%, and 4-35% for sampler A, B and C, respectively. The performance was poor in 8 hours sampling for multiple substance monitors. 6. At high velocity(100 ㎝/sec), samplers B and C overestimated the concentrations of organic vapors, and sampler A with permeation membrance gave better results. 7. At 80% relative humidity, samplers showed no significant effect. Low humidity also did not affect the diffusive samplers.
노인복지 서비스 가치와 구전의도와의 관계 - 서비스 만족도의 매개효과를 중심으로 -
박미진 한국지역사회복지학회 2019 한국지역사회복지학 Vol.0 No.69
This study examines the effects of service values and satisfaction on word-of-mouth of older adults’ use of gerontological welfare services. The value of gerontolgical welfare services was classified as functional or emotional. A research model was established based on previous studies on service values, satisfaction, and word of mouth of gerontological welfare services. The subjects were 494 people over age 65 living in Busan Metropolitan City in Korea. Data analyses were conducted using Mplus 7.2 and SPSS 23.0. Emotional service values positively affected word-of-mouth. The mediating effect of service satisfaction on the relationship between service values and word-of-mouth was found to be statistically significant. Improvements to the marketing and recruitment of gerontological welfare services are suggested. The practical implications and directions for future research are presented. 본 연구는 노인복지 서비스 가치, 만족도, 구전의도의 구조적 관계에서 서비스 만족도의 매개효과를 확인하는데 목적이 있다. 노인복지 서비스 가치는 기능적 가치와 정서적 가치로 구분하였고, 이들 가치와 서비스 만족도를 통해 구전의도에 미치는 영향을 살펴보고자 하였다. 이를 위해 부산지역 노인복지관에서 노인복지 서비스이용 경험이 있는 65세 이상 노인 494명의 설문조사 자료를 분석하였다. 자료의 매개효과 분석을 위해 Mplus 7.2와 SPSS25 프로그램을 활용하였다. 분석결과, 노인복지관 이용 노인의 구전의도에 서비스 가치 중 정서적 가치는 유의한 매개효과가 있는 것으로 나타났다. 그리고 서비스 만족도는 구전의도에 직접적인 영향을 미치는 것으로 나타났다. 연구결과에 기반하여 노인복지 서비스에 대한 홍보 및 이용자 모집과 관련된 실천적 함의를 제시하였고, 추후 연구를 위한 연구방안을 제시하였다.
박미진 한국교육방법학회 2014 교육방법연구 Vol.26 No.3
본 연구는 취업에 성공한 진로성공자를 대상으로 그들의 진로성공 스토리 속에 나타나는 진로성공과 관련되어 표현되는 메타포를 찾고 그 의미를 탐색하고자 하였다. 질적 분석으로 10명의 진로성공 대학생들을 대상으로 그들에게 진로성공 이야기 속에서 나타나는 메타포를 분석하였다. 진로성공 대학생의 스토리를 분석한 결과, 진로성공과 관련된 메타포는 길, 성과, 운, 매칭, 시작점, 계단, 도전으로 7개가 추출되었다. 7개의 진로성공 메타포는 다시 핵심적인 구성개념인 원하는 것을 이루어냄, 놓치지 않은 기회, 또 다른 진로를 위한 진로로 분석되었다. 진로성공 메타포와 구성개념은 진로가 주는 의미와 중요성을 확인하는 것이며 대학생의 진로선택과 구직에서 다루어야할 내용과 접근방식이 무엇임을 보여주는 의의가 있다. The purpose of this study was to exploring metaphors of career success for university students. For this purpose, the interview data of 5 male and 5 female who successfully find a jobs were chosen, and they were interviewed individually. An analysis identified 7 metaphors(path, outcomes, lucky, matching, beginning, stages, challenge) relating to reveal three distinct configurations that conceptualize career success as reaching the object of one's desire, doing not miss one's chance and career for another careers. Finally, the implications of findings are discussed.