음용수의 변이원성에 관한 조사연구

박지인,유춘만,위인선 한국환경보건학회 1998 한국환경보건학회지 Vol.24 No.2

This is a study on the risk assessment of drinking water using mutagenicity testing. The tests have been carried with the raw water, treated water, and drinking water (tap water) in Kwangju and Mokpo areas. The Ames preincubation test was carried concentrating samples using by Sep-Pak PLUS cartriges in Salmonella typhimurium TA100 and TA98. The samples were tested with several chemical water quality analysis. The THMs have not been measured in raw water, but measured treated water and tap water at a value of 7.135-12.473 $\mu$g/l. It was observed that the number of revertants colonies increased in treated water and tap water on TA100 without S9 and showed weak mutagenicity on TA98 without S9. Indirect mutation was not seen in TA100 and TA98 with S9. The results indicated that formed substances of treatment process s of water that increased mutagenicity.

공학교육 Part 1

박지인 한국공학교육학회 2018 Ingenium(人材니움) Vol.25 No.3

한국인에서의 Ekman 얼굴 표정 사진의 신뢰도와 타당도

박지인,강지인,조현상,이은,안석균 대한우울조울병학회 2010 우울조울병 Vol.8 No.2

Objective:Ekman’s pictures of facial affect (Ekamn and Frisen, 1976) have been extensively used in the current affective neuroscience researches. However, their reliability and validity have not been established in Korea. The purpose of this study is to assess the reliability and validity of Ekman’s pictures for Koreans. Method:Using the 70 Ekman’s pictures, Korean young adults were asked to judge the category of the facial expressions and rate the emotional intensity. We selected the pictures, whose inter-rater agreement on the recognition of emotional category is more than 70%. To test criterion validity, we assessed the correlations of emotion recognition accuracy and intensity between selected Ekman’s pictures and 28 Japanese pictures of Japanese and Caucasian Facial Expressions of Emotion (JACFEE). Results:Ten happy, 6 disgust, 6 anger, 9 sad, 10 surprise and 4 fear pictures were found to have more than 70% inter-rater agreement. The recognition accuracy and intensity rating of selected 45 Ekman’s pictures were significantly correlated with those of 28 Japanese photos of JACFEE. Conclusion:The selected Ekman’s pictures seem to have acceptable inter-rater reliability and validity for Koreans. We expect the selected set of Ekman’s pictures could be applied to Koreans for the affective neuroscience research.

Evaluation of changes in anesthetic methods for cesarean delivery: an analysis for 5 years using the big data of the Korean Health Insurance Review and Assessment Service

박지인,박상희,Kang Min Seok,강길원,김상태 대한마취통증의학회 2020 Anesthesia and pain medicine Vol.15 No.3

Background: As an anesthesia induced during cesarean section, spinal anesthesia is preferred over general and epidural anesthesia. This study aimed to review the trend of anesthetic methods for cesarean section based on data obtained from the Korean Health Insurance Review and Assessment Service from 2013 to 2018.Methods: The anesthetic methods were analyzed in 753,285 parturients who underwent a cesarean section in Korea from 2013 to 2018. We determined the association between each anesthetic method and hospital type and maternal and fetal factors. We also evaluated whether the anesthetic method was associated with the parturients’ length of hospital stay.Results: General anesthesia, spinal anesthesia, and epidural anesthesia were induced in 28.8%, 47.7%, and 23.6% of parturients from 2013 to 2018, respectively. Trend analyses showed that spinal anesthesia increased from 40.0% in 2013 to 53.7% in 2018. The opposite trend applied to general anesthesia, decreasing from 37.1% in 2013 to 22.2% in 2018. The factors that were significantly associated with the anesthetic method were parturient’s parity, emergency condition, gestational age, and fetal weight. The type of hospital, parturient’s age, and multiple birth were also associated with the anesthetic methods. There was a strong association between general anesthesia and hospital stay longer than 7 days.Conclusions: Spinal anesthesia is currently the main anesthetic method used for cesarean delivery, and the rate of spinal anesthesia is gradually increasing in Korea.

차량 전복 방지를 위한 강건한 롤 상태 추정기 설계

박지인,이경수 대한기계학회 2007 環境管理學會誌 Vol.2007 No.5

This paper describes a robust model-based roll state estimator for application to the detection of impending vehicle rollover. The roll state estimator is based on a 2-D bicycle model and a roll model to estimate the maneuver-induced vehicle roll motion. The measurement signals are lateral acceleration, yaw rate, steering angle, and vehicle speed. Vehicle mass is adapted to obtain robust performance of the estimator. Computer simulation is conducted to evaluate the proposed roll state estimator by using a validated vehicle simulator. It is shown that the roll state estimator shows robust performance without exact vehicle mass information.

갈고리흰오징어(Berryteuthis magister) 내장 유지 특성 및 정제

박지인,김풍호,곽원주,구나은,장미순 한국수산과학회 양식분과 2020 한국수산과학회 양식분과 학술대회 Vol.2020 No.7

STEAM 교육 이론에 기초한 과학 창의 교육, 주니어 캠퍼스

박지인,Park, Ji-In 한국공학교육학회 2018 공학교육동향 Vol.25 No.3

데이터사서의 직무와 역량에 관한 연구 - 미국 구인광고 분석을 이용하여 -

박지인,박지홍,Park, Jiin,Park, Ji-Hong 한국비블리아학회 2021 한국비블리아학회지 Vol.32 No.3

본 연구는 데이터사서의 주요 직무와 핵심 역량을 알아보기 위하여 75개의 미국 데이터사서 구인광고의 내용 분석을 수행하였고, 미국과 캐나다 현직 데이터사서를 대상으로 설문을 진행하여 105명의 응답을 수집 후 통계 분석을 진행하였다. 내용 분석과 통계 분석을 종합한 결과, 데이터사서의 주요 직무는 collaboration, workshops, trainings, conferences, data service, research consultation, 그리고 research support 관련 직무로 파악되었다. 핵심 역량은 communication skill, teaching, diversity, inclusion, and equality, data management, 그리고 data tool 관련 역량으로 나타났다. 본 연구는 가장 최신의 데이터를 이용하여 데이터사서의 주요 직무 및 핵심 역량을 분석하고 현직자의 의견을 수렴했다는 점에서 의의를 가진다. 이는 향후 이어질 데이터사서의 직무만족도, 이용자만족도, 인식조사에 기초연구로 이용될 수 있을 것이다. To identify key job duties and core competencies of data librarians, this study conducted content analyses of 75 U.S. job advertisements of data librarians and statistical analyses of 105 responses from incumbent data librarians. As a result, the key job duties identified are jobs related to collaboration, workshops, trainings, conferences, data service, research consultation, and research support. Core competencies identified are communication skills, teaching, diversity, inclusion, and equality, data management, and data tool. This study is significant in that it analyzed the key duties and core competencies of the data librarians using the most up-to-date data and opinions collected from incumbent people. It can be a basis for future study such as on job satisfaction, user satisfaction, and perception surveys for data librarians.

유휴자원인 쌀을 이용한 기능성 이소말토올리고당의 제조

박지인,신지영,양지영 한국식품영양과학회 2018 한국식품영양과학회 학술대회발표집 Vol.2018 No.10

인스타그램에서의 푸드스타일링 시각적요소가 신뢰 및 구매의도에 미치는 영향 : 전주지역 관광객을 중심으로

박지인,차경희,김수인 한국외식경영학회 2017 외식경영연구 Vol.20 No.6

In the present study, Targeted at Instagram users which have the largest number of user among the image-based SNSs that are not academically discussed yet, and aims to identify connection between credibility of visual component in food styling and purchase intention. Results of this study suggest how to effectively use Instargram relevant to food industry as a marketing tool with hashtag (#) for food industry or independent food business and, basic data on Instagram marketing. According to the research, All the sub factors of the visual components of food styling of food posted on Instagram including form (p<.001), color (p<.001), texture (p<.001), scale and size (p<.001) had statistically positive (+) impacts on positive emotions. Second, the independent variable, positive emotion, had a statistically positive (+) impact on credibility and hypothesis 2 was adopted Third, as positive emotions had positive (+) impacts on the purchasing intention, hypothesis 3 was adopted Fourth, as credibility had positive (+) impacts on the purchasing intention, hypothesis 4 was adopted Therefore, it is considered that as positive emotions of consumers on color, scale and size, texture are high, the influences on the credibility and purchasing intention of consumers are high. 본 연구는 아직 학술적으로 많이 다뤄지지 않은 이미지 기반 SNS 중 국내에서 가장 활발하게 활동하는 인스타그램을 사용하는 소비자들을 대상으로 푸드스타일링의 시각적요소의 신뢰 및 구매의도의 연계성을 고찰하고자 한다. 기업 및 개인 업체의 마케팅 수단으로서 활용 가치가 높은 인스타그램에서의 푸드스타일링 시각적 요소와 소비자의 긍정적 감정과의 관계를 파악하고, 신뢰와 구매의도에 미치는영향에 대해 알아보고자 한다. 연구의 결과 첫째, 인스타그램에서 보여 지는 음식의 푸드스타일링의 시각적요소 중 하위요인인 형태, 색채, 질감, 부피․크기 모두 긍정적 감정에 통계적으로 유의한 정(+)의 영향을 미치는 것으로 나타나 가설 1은 채택되었다. 둘째, 독립변수 긍정적 인상이 신뢰에 통계적으로 유의한 정(+)의 영향을 미치는 것으로 나타나 가설 2는 채택되었다. 셋째, 긍정적 감정은 구매의도에 유의한 정(+)의 영향을 미치는 것으로 나타나 가설3은 채택되었다. 넷째, 신뢰는 구매의도에 유의한 정(+)의 영향을 미치는 것으로 나타나 가설 4는 채택되었다. 소비자들은 인스타그램에서의 푸드스타일링 시각적요소는 감정반응을 통해 신뢰가 높아지면 구매의도에까지 영향을 미칠 수 있을 것으로 사료된다. 이 연구의 결과는 인스타그램의 해쉬태그(#)를 이용하여 마케팅 수단으로 이용하려는 외식기업이나 개인 외식업체에 효과적으로 활용을 위한 기초 제시에 도움이 될 것으로 사료된다.