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박가영,백승석,박준영,Park, Ka-Young,Baek, Seung-Seok,Park, Jun-Young 한국세라믹학회 2014 한국세라믹학회지 Vol.51 No.4
PdO-doped $BaZr_{0.85}Y_{0.15}O_{3-\delta}$ (BZPY) proton conductors have been proposed as applicable for intermediate temperature electrolytes for protonic ceramic fuel cells (PCFCs) because the PdO doping is effective for improving the proton conductivity of $BaZr_{0.85}Y_{0.15}O_{3-\delta}$ (BZY) with high affinity for hydrogen. In order to further improve the conductivity of BZPY, two-phase composite electrolytes consisting of a BZPY and molten carbonate were designed. Dense BZPY-based composite electrolytes were fabricated after sintering at $670^{\circ}C$ for 4 h, since molten carbonates fill the grain boundary of the porous BZPY matrix. Furthermore, BZPY/$(Li-0.5Na)_2CO_3$ composites show a significantly enhanced protonic conductivity at intermediate temperatures. This may be because easy proton transport is possible through the interface of the carbonate and oxide phase.
박가영 ( Ka-young Park ),정대련 ( Dae Ryun Chung ) 한국어린이문학교육학회 2016 어린이문학교육연구 Vol.17 No.2
본 연구는 유아교육기관에서의 철학적 탐구공동체 활동이 유아 인성에 어떠한 영향을 미치는지 알아보려는 목적으로 시도되었다. 연구대상은 경기도 G시에 위치한 시립 T어린이집 2개 학급의 5세 유아 38명이다. 실험집단 유아에게는 연구자가 주 2회씩 22회차 동안 선정된 10권의 그림책을 활용하여 철학적 탐구공동체 활동을 실시하였으며, 비교집단 유아에게는 담임교사가 동일한 그림책을 활용하여 이야기나누기 활동을 실시하였다. 연구 결과, 첫째 철학적 탐구공동체 활동에 참여한 실험집단과 참여하지 않은 비교집단 간 유아의 인성차원의 총점에서 유의한 차이가 나타났다. 둘째, 철학적 탐구공동체 활동이 실험집단 유아의 인성차원별 즉 개인, 대인 및 사회 차원의 변화에 긍정적인 효과를 미치고있는 것으로 나타났다. 셋째, 토의 중 교사-유아, 유아-유아의 언어적 상호작용 양상에 있어서는 인성의 세 가지 차원과 9개 하위요소가 복합적으로 나타났다. 결론적으로, 유아들이 철학적 탐구공동체 활동에 참여하여 인성 덕목과 가치에 관련된 사고하기와 판단하기, 그리고 사고 성향이나 태도를 내면화 할 수 있는 경험을 함으로써, 유아기부터 자신과 타인, 더 나아가 사회적 존재로서 적합한 인성을 함양할 수 있다는 가능성을 보였다는 데서 본연구의 의의를 찾을 수 있다. The purpose of this study was to apply and analyze the activities that build a community of philosophical inquiry using 10 picture books related to young children’s character development. As research subjects, this study selected 38 5-year-old children from a nursery school in G city, Gyeonggi-do, and conducted the activities that build a community of philosophical inquiry with 19 children in the experimental group for 22 sessions (30-40 minutes per session) and estimated the changes with the 「Humanity Rating Scale for 3-5 year-old Children」. The results are as follows. First, there were positive changes in the total points for the experimental group. Second, some meaningful differences were observed between the experimental and comparative group in the three dimensions of character value,:personal, interpersonal, and social value. Third, the experimental group showed positive changes in 9 factors for the 3 dimensions,:self -establishment, positive attitude toward life, aesthetic attainment, sense of moral responsibility, moral judgment, respect for other people, forgiveness in others and generosity, duty and role as a member of society, and cosmopolitan spirit during the activities and daily lives in the classroom. In conclusion, 5 procedures for building a community of philosophical inquiry could help young children improve their character development by using the 10 picture books examined in this study.
산모의 한약 복용이 모유에 미치는 영향 -HPLC와 LC/MS/MS를 이용한 생화탕 지표성분 분석-
박가영 ( Ka Young Park ),이아영 ( Ah Young Lee ),반지혜 ( Ji Hye Ban ),박정경 ( Jung Kyung Park ),이은희 ( Eun Hee Lee ) 대한한방부인과학회 2013 大韓韓方婦人科學會誌 Vol.26 No.4
We took breast milk samples and analyzed them using HPLC and LC/MS/MS, to evaluate the effects of taking Saenghwa-tang during breastfeeding on breast milk. edical postpartum care center. Breast milks were collected from paticipants who have been administrated Saenghwa-tang for more than 3 days. We used HPLC and LC/MS/MS for the determinations of amygdalin, liquiritins, 6-gingerol, decursin and decursinol angelate in Saenghwa-tang. Results:1. Participants` Mean±S.D (standard deviation) of age is 31.05±1.96, and 15 participants had normal delivery and 5 participants had cesarean delivery. 12 participants were primipara and 8 participants were multipara. Mean±S.D of lactating date is 9.4±0.94. 2. Using HPLC, we learned LOQ level peak that matches the peak retention time of standard components of Saenghwa-tang was not detected from 20 breast milk samples. 3. Using LC/MS/MS, decursin of Angelicae Gigantis Radix was detected from HMSP 02, HMSP 04, HMSP 06, HMSP 11, and the each concentrations are 16, 2, 64, 11 ppb. Liquiritin of Glycyrrhizae Radix was not detected from HMSP 13~HMSP 18. Conclusions: Data obtained by this approach shows that this method is reliable and suitable for determining the safety of taking Saenghwa-tang during breastfeeding.
주류광고, 주류 판촉 마케팅이 성인 음주폐해에 미치는 영향: 음주동기와 음주수준의 이중매개효과
박가영(Ka Young Park),이희종(Hee Jong Lee) 한국콘텐츠학회 2021 한국콘텐츠학회논문지 Vol.21 No.8
음주를 유발하는 사회환경요인 중 하나인 주류광고와 마케팅 규모는 매년 확대되고 있으며, 음주폐해 또한 그 심각성이 증가하고 있다. 본 연구는 성인 2000명을 대상으로, 주류광고, 주류 판촉마케팅 노출 경험이 음주동기, 음주수준을 매개로 음주폐해에 끼치는 영향에 대해 살펴보았다. 연구 결과 주류광고와 주류 판촉마케팅 노출 경험은 여성보다 남성이 더 높았으며, 음주동기, 음주수준, 음주폐해 또한 남성이 더 높게 나타났다. 주류광고와 주류 판촉마케팅 노출 경험은 음주폐해에 직접적으로 영향을 끼치며, 경험이 많을수록 음주폐해도 큰 것으로 나타났다. 또한 음주동기와 음주수준은 주류광고와 주류 판촉마케팅의 노출 경험이 음주폐해에 끼치는 영향을 부분적으로 매개하는 것으로 나타났다. 따라서, 음주폐해예방을 위해 음주 폐해를 발생시키는 사회 환경인 주류광고와 주류 판촉마케팅에 대한 규제를 강화하고 음주폐해예방을 위해 개인의 인식 개선 접근과 함께 환경적·제도적 차원에서의 개입이 유기적으로 이루어져야함을 제언하였다. This study examined the dual mediating effects of drinking motivation and drinking level between alcohol advertising, alcohol sale promotion marketing exposures, and alcohol-related harms. The survey has been conducted on 2,000 adult men and women aged 20 to 70 years, recruited by an online survey. As a result, it is found that alcohol advertising, alcohol sale promotion marketing exposures, drinking motivation, drinking level, alcohol-related harms appeared more in men than in women. In addition, alcohol advertising, alcohol sale promotion marketing exposures have positive effects on alcohol-related harms. Also, drinking motivation and drinking level partially mediate the effects of alcohol advertising, alcohol sale promotions marketing exposure, and alcohol-related harms. In order to prevent alcohol-related harms, a social environment that causes alcohol-related harms should be tightened regulations about alcohol advertising, alcohol sale promotion marketing exposures. Based on these results, this study discusses that needs the intervention not only personal perception but also social environment and regulations about alcohol advertising, alcohol sale promotion marketing.
박가영 ( Ka-young Park ),이사우 ( Sa-woo Lee ),권장미 ( Jang Mi Kwon ) 한국산업보건학회 (구 한국산업위생학회) 2017 한국산업보건학회지 Vol.27 No.1
Objectives: We focused on investigating the effects between symptoms of depression and emotional labor among health professionals. Methods: A cross-sectional survey design was used. The participants were 365 health professionals. The survey was composed of questionnaires related to general characteristics and work-related characteristics. Korean emotional labor scale-24(K-ELS@24) and Patient Health Questionnaire(PHQ-9) data was collected from July 1, 2015 to August 31, 2015. Results: The prevalence for symptoms of depression among the survey participants was 79.2%. Organizational support(β=.387, P<0.05), emotional disharmony(β=.238, P<0.05), customer conflict(β=.125, P<0.05) and emotional effort(β=.122, P<0.05) showed a significant association with symptoms of depression. Conclusions: These results suggest that emotional disharmony, organizational support and organizational surveillance are related to symptoms of depression. Managing organizational support on the emotional labor scale is the most important factor in controlling symptoms of depression.
전극평형전위차 가스 센싱 메커니즘을 적용한 일산화탄소 소형 전위차센서의 특성 향상에 관한 연구
박준영,김지현,박가영,Park, Jun-Young,Kim, Ji-Hyun,Park, Ka-Young,Wachsman, Eric D. 한국세라믹학회 2010 한국세라믹학회지 Vol.47 No.1
Based on the differential electrode equilibria approach, potentiometric YSZ sensors with semiconducting oxide electrodes for CO detection are developed. To improve the selectivity, sensitivity and response-time of the sensor, our strategy includes (a) selection of an oxide with a semiconducting response to CO, (b) addition of other semiconducting materials, (c) addition of a catalyst (Pd), (d) utilization of combined p- and n-type electrodes in one sensor configuration, and (e) optimization of operating temperatures. Excellent sensing performance is obtained by a novel device structure incorporating $La_2CuO_4$ electrodes on one side and $TiO_2$-based electrodes on opposite substrate faces with Pt contacts. The resulting response produces additive effects for the individual $La_2CuO_4$ and $TiO_2$-based electrodes voltages, thereby realizing an even higher CO sensitivity. The device also is highly selective to CO versus NO with minor sensitivity for NO concentration, compared to a notably large CO sensitivity.