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수도권 거주 성인여성의 제례음식과 상차림에 대한 인식과 준비에 관한 조사
박정은,심기현,Park, Jeong Eun,Sim, Ki Hyeon 한국식품조리과학회 2012 한국식품조리과학회지 Vol.28 No.6
This study was made to the adult females over 20's in the family that prepared the ritual food personally or in the family that conducts ritual or did not do the ritual for the religious reasons. And based on the prepare method of the ritual food, ritual and recognition of ritual good. 245 responses which took up 80.86% had responded they do the ritual or semi-ritual and Buddhism was most prominent religion among them. The cost for ritual food also had statically significant differences by the age, marriage status and income and on the terms of the income, more the income was more they spend on the ritual food. The ritual utensil used for the ritual food also show significant differences by the age, marriage status, family make-up formation, religion. The form and meaning of the ritual have been changed as the society changes but is still important subject matter for most of homes. Responders were preparing the ritual with all the sincerity to their ancestors with practical and realistic decisions.
아연-공기 전지용 전해질의 Gelling Agent 분자량에 따른 자가 방전 억제 효과
박정은,조용남,Park, Jeong Eun,Jo, Yong Nam 한국재료학회 2019 한국재료학회지 Vol.29 No.12
A zinc-air battery is one of most promising advanced batteries due to its high specific energy density, low cost, and environmental friendliness. However, zinc anodes in zinc-air batteries lead to several issues including self-discharge, corrosion reaction, and hydrogen evolution reaction (HER). In this paper, viscosity of electrolyte has been controlled to suppress the corrosion reaction, HER, and self-discharge behavior. Various viscosity average molecular weights of poly(acrylic acid) (PAA) are adopted to prepare the electrolyte. The evaporation of electrolytes is proportional to the increase in molecular weight. In addition, enhanced self-discharge behavior is obtained when the gelling agent with high molecular weight is used. In addition, the zinc-air cell assembled with lower viscosity average molecular weight of PAA (M<sub>v</sub> ~ 450,000) delivers 510.85 mAh/g and 489.30 mAh/g of discharge capacity without storage and with 6 hr storage, respectively. Also, highest capacity retention (95.78 %) is obtained among studied materials.
근접치료용 방사성 동위원소의 선량분포 확인을 위한 디지털 반도체 센서의 제작 및 평가
박정은,김교태,최원훈,이호,조삼주,안소현,김진영,송용근,김금배,허현도,박성광,Park, Jeong-Eun,Kim, Kyo-Tae,Choi, Won-Hoon,Lee, Ho,Cho, Sam-Joo,Ahn, So-Hyun,Kim, Jin-Young,Song, Yong-Keun,Kim, Keum-bae,Huh, Hyun-Do,Park, Sung-Kwang 한국의학물리학회 2015 의학물리 Vol.26 No.4
방사선 치료분야 중 근접치료는 방사성 동위원소를 체내에 직접 삽입하여 병변 세포를 사멸시키는 치료법으로써, 주로 고선량률 치료가 시행되고 있다. 현재 치료계획과 실제 선량 방출범위의 일치성 여부는 Film/Screen 시스템을 통해 확인하고, 확인된 선량분포에 따라 방사선 치료를 시행하고 있다. 선량 분포 확인 시 F/S 시스템을 이용할 경우, Film 현상조건에 따른 신호 왜곡과 반음영에 의한 저분해능으로 인하여 치료계획과의 선량 분포 일치성을 정량적으로 파악하기 힘든 단점이 있다. 본 연구에서는 방사선 근접치료 시 치료계획과 동일한 선량 분포 여부를 확인하는 디지털 검출시스템의 기초 연구를 진행하고자, PIB법을 이용한 $HgI_2$ 반도체 검출센서를 제작하였다. 또한 이를 근접치료선원을 이용해 평가함으로써, QA 시스템으로 이용 가능성을 검증하고자 하였다. 근접치료 범위의 확인을 위하여 SDD의 변화에 대한 신호 수집량을 평가한 결과, 치료 범위 이상의 거리에서는 산란선으로 추정되는 낮은 신호만이 측정되었으므로 치료 계획시와 동일한 치료 범위를 정량적으로 확인할 수 있었다. 또한 동일한 ${\gamma}$-선 조사 조건에 대한 재현성 평가 결과, 변동계수 1.5% 이내인 것을 확인하였다. 이와 같은 결과를 바탕으로, 본 연구에서 제작한 센서는 방사선 근접치료 QA 시스템으로 적용 가능할 것이라 사료된다. In radiation therapy fields, a brachytherapy is a treatment that kills lesion of cells by inserting a radioisotope that keeps emitting radiation into the body. We currently verify the consistency of radiation treatment plan and dose distribution through film/screen system (F/S system), provide therapy after checking dose. When we check dose distribution, F/S systems have radiation signal distortion because there is low resolution by penumbra depending on the condition of film developed. In this study, We fabricated a $HgI_2$ Semiconductor radiation sensor for base study in order that we verify the real dose distribution weather it's same as plans or not in brachytherapy. Also, we attempt to evaluate the feasibility of QA system by utilizing and evaluating the sensor to brachytherapy source. As shown in the result of detected signal with various source-to-detector distance (SDD), we quantitatively verified the real range of treatment which is also equivalent to treatment plans because only the low signal estimated as scatters was measured beyond the range of treatment. And the result of experiment that we access reproducibility on the same condition of ${\gamma}$-ray, we have made sure that the CV (coefficient of variation) is within 1.5 percent so we consider that the $HgI_2$ sensor is available at QA of brachytherapy based on the result.
박정은,양영,이성호,Park, Jeong-Eun,Yang, Young,Lee, Sung-Ho 한국CRM학회 2009 CRM연구 Vol.2 No.1
한 경쟁 시대를 맞아 기업의 기존 고객 유지의 중요성이 강조되고 있는 가운데 여러 분야에서 CRM에 관한 연구가 진행되어 왔다. 본 연구는 기존의 CRM연구들을 고찰하고 이를 통해 CRM의 정의 및 종류를 재정립하여 실무자들을 위한 제언과 학계의 연구자들을 위해 미래 연구방향을 제시하고자 하였다. 1990년 이후의 국내외 연구들을 정리하여 CRM의 과거의 연구과제와, 현재의 위상 그리고 미래 방향 부분으로 나누어서 이슈들을 제시하고자 하였다. Because of today's intensive competitive environment, companies are taking new avenues to make inroads into or maintain their existing customers. Also many researchers have been studying areas of CRM in different perspectives. In this study, we review the previous studies critically and synthesize the concept and types of CRM from different points of view. Based on the consensus about the definition of CRM, this study propose some issues for the future study while suggesting some advices for the CRM managers. This paper review the most papers in major marketing journals after 1990 and consist of three parts (past, present and future of CRM) and its research issues.