지구통계 및 다중 유체 거동 모사에 근거한 스팀주입중력법 적용 최적지 결정 척도 개발 연구

권미진,정진아,이현석,박진백,박은규,Kwon, Mijin,Jeong, Jina,Lee, Hyunsuk,Park, Jin Beak,Park, Eungyu 대한자원환경지질학회 2017 자원환경지질 Vol.50 No.3

본 연구에서는 스팀주입중력법 (Steam Assisted Gravity Drainage, SAGD)을 이용한 오일샌드 개발 시 적지 선정을 위한 대안적 척도가 제시되었다. 기존 SAGD 공법 적용 시 스팀주입효율이 우수한 지역을 선정하기 위해 비투멘이 함유될 가능성이 큰 고투수성 퇴적층의 누적 층후가 주로 이용되었다. 그러나 고투수성 퇴적층의 누적 층후 외에도 수직 평균거리 또한 스팀주입효율에 큰 영향을 미칠 것으로 판단하였다. 따라서 본 연구에서는 해당 두 가지 척도(즉, 누적 층후도 및 수직 평균거리)가 SAGD 스팀주입효율에 미치는 영향에 대한 비교 및 분석이 이루어졌다. 이를 위해, 구성 암상 간 특정 전이확률을 기반으로 발생시킨 누적 층후 및 수직 평균거리가 상이한 다양한 가상의 2차원 저류층에 대해 고온 고압 증기 주입 모사를 실시한 후 생성된 스팀챔버의 크기를 비교 및 분석하였다. 2차원 SAGD모사 결과, 투수성 퇴적층의 수직 평균두께가 두꺼운 지역이 누적 층후가 두꺼운 지역보다 더 넓은 범위의 스팀챔버를 형성하는 것을 확인하였다. 따라서 최적의 오일샌드 개발 입지 선정 시, 기존에 이용되고 있던 누적 층후뿐만 아니라 투수성 퇴적층의 수직 평균거리도 함께 고려하였을 때 더욱 적합한 SAGD공법의 최적 입지를 선정할 수 있을 것으로 판단된다.

지구통계 분석 및 다중유체 거동 모사에 근거한 스팀주입중력법 적용 최적지 결정 척도 개발 연구

권미진(Mijin Kwon),정진아(Jina Jeong),서원교(Wongyo Seo),박은규(Eungyu Park) 대한지질학회 2014 대한지질학회 학술대회 Vol.2014 No.10

라이프로깅에 대한 고찰 및 향후 마케팅 연구에 대한 제언

권미진 ( Kwon Mijin ),서정화 ( Seo Jeonghwa ),박혜연 ( Park Hyeyeon ),한영지 ( Han Youngjee ),김학균 ( Kim Hakkyun ) 한국소비자학회 2024 소비자학연구 Vol.35 No.1

Lifelogging refers to the recording of all activities in an individual's daily life. With the advancement of smart environments and wearable devices, consumers are now able to record and quantify their experiences and information without interruption through lifelogging and share it with others. This research aims to systematically review existing literature on lifelogging, analyze consumer lifelogging behaviors in new technological environments, and provide suggestions for future research on lifelogging in the field of marketing and consumer behavior. Specifically, this research reviews the types of lifelogging based on their forms and recording methods the effects of lifelogging on individual consumers and society, and current issues faced by lifelogging technology and its utilization. Additionally, we analyze consumer lifelogging behaviors through smart devices in the areas of health, finance, shopping, and other fields in South Korea. Finally, we discuss 1) future research on factors influencing consumer lifelogging behaviors, 2) marketing strategies to promote lifelogging participation, and 3) impacts of lifelogging on consumers' self and society. We expect this research to expand the literature on lifelogging beyond its technical aspects, to provide practical applications for marketing professionals, and to promote academic discussions on lifelogging in the field of marketing.

방사성폐기물 표층처분시설 통합 모니터링 시스템 개발

최세호,강현구,권미진,하재철,Se-Ho Choi,HyunGoo Kang,MiJin Kwon,Jae-Chul Ha 한국방사선산업학회 2023 방사선산업학회지 Vol.17 No.4

In this study, the function and purpose of the disposal cover, which is an engineering barrier installed to isolate the disposal vault of the near-surface disposal facility for radioactive waste from natural/man-made intrusion, and the design details of the demonstration facility for performance verification were described. The Demonstration facility was designed in a partially divided form to secure the efficiency of measurement while being the same as the actual size of the surface disposal facility to be built in the Intermediate & low-level radioactive waste disposal site of the Korea Radioactive Waste Agency (KORAD). The instruments used for measurement consist of a multi-point thermometer, FDR (Frequency Domain Reflectometry) sensor, inclinometer, acoustic sensor, flow meter, and meteorological observer. It is used as input data for the monitoring system. The 3D monitoring system was composed of 5 layers using the e-government standard framework, and was developed based on 4 components: screen, control module, service module, and DBIO(DataBase Input Output) module, and connected them to system operation. The monitoring system can provide real-time information on physical changes in the demonstration facility through the collection, analysis, storage, and visualization processes.

가우시안 프로세스 회귀분석을 이용한 지하수 수질자료의 해석

구민호,박은규,정진아,이헌민,김효건,권미진,김용성,남성우,고준영,최정훈,김덕근,조시범,Koo, Min-Ho,Park, Eungyu,Jeong, Jina,Lee, Heonmin,Kim, Hyo Geon,Kwon, Mijin,Kim, Yongsung,Nam, Sungwoo,Ko, Jun Young,Choi, Jung Hoon,Kim, Deog-Geun,Jo, 한국지하수토양환경학회 2016 지하수토양환경 Vol.21 No.6

Gaussian process regression (GPR) is proposed as a tool of long-term groundwater quality predictions. The major advantage of GPR is that both prediction and the prediction related uncertainty are provided simultaneously. To demonstrate the applicability of the proposed tool, GPR and a conventional non-parametric trend analysis tool are comparatively applied to synthetic examples. From the application, it has been found that GPR shows better performance compared to the conventional method, especially when the groundwater quality data shows typical non-linear trend. The GPR model is further employed to the long-term groundwater quality predictions based on the data from two domestically operated groundwater monitoring stations. From the applications, it has been shown that the model can make reasonable predictions for the majority of the linear trend cases with a few exceptions of severely non-Gaussian data. Furthermore, for the data shows non-linear trend, GPR with mean of second order equation is successfully applied.

An Empirical Study of Pedestrian-Vehicle Interaction Using Virtual Reality

Yoon Kyung Lee(이윤경),Hyoseok Bang(방효석),Mijin Kwon(권미진),Yong-Eun Rhee(이용은),Jeh-Kwang Ryu(유제광),Sowon Hahn(한소원) 한국HCI학회 2019 한국HCI학회 학술대회 Vol.2019 No.2

The purpose of this research was to explore gesture interface of pedestrian and to propose socially appropriate movement gestures for vehicles. We conducted an observational study in locations that had 1) high volume of traffic, 2) intersections where constant interactions between pedestrians and vehicles occur, 3) no traffic lights to regulate the flow of traffic. We then developed a virtual crossing task (VCT), with independent variables selected based on the behavioral patterns we observed from the preliminary study. We measured head direction, crossing time, and success rate in crossing. Based on our observation, the speed, the size of the vehicle, and the number of pedestrians were the main factors of change in pedestrian movements (e.g., stopping). In the experiment, participants were more likely to keep caution by changing their head direction to look around when the vehicle was small and slowly approached the crosswalk and when a companion was present. In conclusion, we suggest that the interaction between autonomous vehicles and pedestrians should be understood as social interactions: social institutions and cultural differences should be considered when designing a ‘socially’ appropriate gesture interface of autonomous vehicles.

인생경험에서 얻은 이득과 손실에 대한 전반적인 인식과 시간조망이 위험추구 행동에 미치는 영향

안희경(Ahn, Heekyung),한영지(Han, Youngjee),권미진(Kwon, Mijin) 한국마케팅학회 2016 마케팅연구 Vol.31 No.4

본 연구는 소비자의 위험추구 행동에 영향을 미치는 요인으로써 현재까지의 삶에 대한 전반적인 인식과 앞으로 남은 삶의 길이에 대한 인식의 상호작용을 고찰하였다. 〈연구 1〉은 생물학적 나이와 시간조망이 밀접한 연관성을 가진다는 기존 연구에 따라, 청년 집단과 중•장년 집단을 대상으로 하여 인생에서 전반적으로 잃은 것과 얻은 것 어느 쪽이 더 많다고 생각하는지 측정함으로써, 인생경험 인식과 시간조망, 두 요인이 위험회피 의사결정에 미치는 영향을 살펴보았다. 그 결과, 중•장년 집단은 인생에서 얻은 것이 많다고 생각하는 경우 잃은 것이 많다고 생각하는 경우 보다 높은 위험회피 성향을 보인 반면, 청년 집단에서는 인생경험에 대한 인식에 따른 차이가 나타나지 않았다. 〈연구 2〉는 대학생을 대상으로 시간조망을 조작하여 인생경험 인식과의 상호작용이 위험추구 의사결정에 미치는 영향을 살펴보았다. 그 결과, 〈연구 1〉과 마찬가지로, 한정적인 시간조망 조건에서는 인생에서 얻은 것이 많다고 생각하는 경우 잃은 것이 많다고 생각하는 경우보다 낮은 위험추구 성향을 보였으며, 확장적인 시간조망이 조건에서는 인생경험 인식에 따른 차이가 나타나지 않았다. 본 연구는 기존 위험추구 문헌에서 살펴보지 않았던 인생경험에 대한 전반적인 인식과 시간조망이라는 두 요인의 상호작용효과를 고찰함으로써 소비자의 위험선호에 대한 이해의 폭을 확장하였다. We investigated the interactive impact of consumers’ perception of lifetime experience and perceived limitations on time on risk-taking behavior. Based on previous research suggesting the correlation between chronological age and time horizon perspective, study 1 examined the effect of time horizons by recruiting a group of younger versus older adults. Participants’ perception of lifetime experiences was measured by asking them to indicate the extent to which they think there were more gains than losses, or vice versa. The results of study 1 showed that among older adults, people who thought that there were more gains than losses in their life tended to avoid risks compared to those who thought that there were more losses than gains. On the contrary, there was no difference in risk-taking tendency among younger adults. Study 2 tested our hypothesis by manipulating time horizons within a group of undergraduate students. As a result, we obtained the same pattern of results: in the limited time perspective condition, participants who perceived more gains than losses in their life experiences showed a lower likelihood to take risks compared to those who perceived more losses than gains. On the other hand, no significant difference was found in the expansive time perspective condition. Our findings contribute to the literature by addressing two unexplored factors that influence consumers’ risk-taking behavior.