레이저 가공 산란패턴의 유형에 따른 도광판의 휘도 및 균일도 향상에 관한 전산모사

박소희,이승석,마혜준,최은서,신용진,Park, So-Hee,Lee, Seung-Suk,Ma, Hye-Joon,Choi, Eun-Seo,Shin, Yong-Jin 한국광학회 2010 한국광학회지 Vol.21 No.6

레이저로 가공된 평면산란패턴을 가지는 도광판은 도광판 상부로 방출되는 광이 광원과 가까운 부분에 편중되는 문제로 인해서 전체적인 휘도 분포가 균일하지 않은 문제점을 가지고 있었다. 이를 해결하기 위해 도광판 후면에 레이저를 이용하여 도광판 내부에서 특징적인 기울기를 가지는 산란패턴을 만듬으로써 도광판 상부로 방출되는 광의 균일도를 향상시키고자 하였다. 본 논문에서는 도광판 후면의 산란패턴을 간격과 가공 깊이를 다르게 조절하여 설계하고 이에 따른 도광판의 성능의 차이점을 가공전에 분석하고자 전산모사를 수행하였다. 본 논문에서 제안한 산란패턴을 가지는 도광판은 기존의 도광판의 휘도와 균일도에 비해 높은 향상을 가질 것으로 예상되는 바이다. Laser-induced scatterer patterns in a light guide panel(LGP) have provided partially concentrated light distribution, especially near the light entrance of the LGP. Additional treatments for enhancing performance of the LGP, such as gradually increased processing depth, were also developed, but minor improvement was observed in the fabricated LGP. To solve this problem, we designed a revised scatterer pattern to be inscribed into the LGP using different laser processing depths and different separation distances between patterns. Performance feasibility of the proposed pattern was analyzed with simulation before laser inscription in the LGP. The LGP inscribed with the proposed scatterer patterns contributes improvements in luminance and uniformity of the LGP.

2013~2017년 연안해역별 해양기상요소의 시·공간 변화 및 해무발생시 특성 분석

박소희,송상근,박형식,Park, So-Hee,Song, Sang-Keun,Park, Hyeong-Sik 한국환경과학회 2020 한국환경과학회지 Vol.29 No.3

This study investigates the temporal and spatial variations of marine meterological elements (air temperature (Temp), Sea Surface Temperature (SST), and Significant Wave Height (SWH)) in seven coastal waters of South Korea, using hourly data observed at marine meteorological buoys (10 sites), Automatic Weather System on lighthouse (lighthouse AWS) (9 sites), and AWS (20 sites) during 2013-2017. We also compared the characteristics of Temp, SST, and air-sea temperature difference (Temp-SST) between sea fog and non-sea-fog events. In general, annual mean values of Temp and SST in most of the coastal waters were highest (especially in the southern part of Jeju Island) in 2016, due to heat waves, and lowest (especially in the middle of the West Sea) in 2013 or 2014. The SWH did not vary significantly by year. Wind patterns varied according to coastal waters, but their yearly variations for each coastal water were similar. The maximum monthly/seasonal mean values of Temp and SST occurred in summer (especially in August), and the minimum values in winter (January for Temp and February for SST). Monthly/seasonal mean SWH was highest in winter (especially in December) and lowest in summer (June), while the monthly/seasonal variations in wind speed over most of the coastal waters (except for the southern part of Jeju Island) were similar to those of SWH. In addition, sea fog during spring and summer was likely to be in the form of advection fog, possibly because of the high Temp and low SST (especially clear SST cooling in the eastern part of South Sea in summer), while autumn sea fog varied between different coastal waters (either advection fog or steam fog). The SST (and Temp-SST) during sea fog events in all coastal waters was lower (and more variable) than during non-sea-fog events, and was up to -5.7℃ for SST (up to 5.8℃ for Temp-SST).

북한이탈주민 정신건강의 종단적 추세: 외로움, 우울, 삶의 만족도에 대한 4년 추적 연구

박소희,홍진표,안지현,이혜린,김명현,장혜인,Park, So Hee,Hong, Jin Pyo,An, Ji Hyun,Lee, Hye Rin,Kim, Myung Hyun,Chang, Hyein 대한불안의학회 2021 대한불안의학회지 Vol.17 No.2

Objective : The purpose of this study was to investigate the longitudinal trajectories of life satisfaction, loneliness, and depression and to identify the factors that influence these trajectories in North Korean Defectors (NKD). Methods : NKD (n=300) who registered in the multi-regional adaptation center (Hana Center), within three years of settling in South Korea, were recruited into this study. Life satisfaction, loneliness, and depression were assessed with self-report questionnaires over a period of 4 years (7 waves of data). Latent growth modeling was conducted to assess the changes in life satisfaction, loneliness, and depression. Results : Findings from both unconditional and conditional models (with gender, South Korea settlement age, household income, marital status, and PTSD at wave 1) indicated a linear increase in loneliness and depression, and a linear decrease in life satisfaction over the 4-year period. In the conditional model, gender predicted the intercept of life satisfaction and depression. In addition, PTSD predicted the intercept of life satisfaction, loneliness, and depression and slope of depression. Conclusion : Our finding suggests that the mental health of NKD tends to deteriorate over time after settling in South Korea. Therefore, continuous support is necessary for their successful adaptation to the South Korean Society.

병렬프로그램의 경합조건을 수행 중에 효율적으로 탐지하기 위한 레이블링 기법

박소희,우종정,배종민,전용기,Park, So-Hee,Woo, Jong-Jung,Bae, Jong-Min,Jun, Yong-Kee 한국정보처리학회 2002 정보처리학회논문지 A Vol.9 No.4

병렬프로그램에서 경합 조건은 비결정적인 수행 결과를 초래하므로 디버깅을 위해 반드시 탐지되어야 한다. 이러한 경합을 수행 중에 탐지하는 기존의 기법들은 병행성 정보 생성 시에 공유 자료구조를 사용하여 심각한 병목현상을 발생시키거나, 병행성 정보 비교 시에 내포병렬성의 정도에 의존하는 비효율적인 시간 복잡도를 가진다. 본 논문에서는 개별 자료구조를 사용함으로써 병목현상을 제거하여 병행성 정보를 확장적으로 생성하며, 생성된 병행성 정보의 비교 시간을 상수적인 복잡도로 개선한 새로운 레이블링 기법을 제안한다. 그러므로 제안된 레이블링 기법의 확장성 및 효율성은 공유메모리와 메시지전달 프로그램뿐만 아니라 이를 혼합하여 사용하는 병렬프로그램에서도 효율적인 수행중 경합탐지를 가능하게 한다. Race conditions, races in short, need to be detected for debugging parallel programs, because the races result in unintended non-deterministic executions. To detect the races in an execution of program, previous techniques use a centralized data structure which may incur serious bottleneck in generating concurrency information, or show inefficient time complexity which depends on the degree of nested parallelism in comparing any two of them. We propose a new labeling scheme in this paper, which is scalable in generating the concurrency information without bottleneck by using private data structure, and improves time complexity into constant in checking concurrency. The scalability and time efficiency therfore makes on-the-fly race detection efficient not only for programs with either shared-memory or message-passing, but also for programs with mixed model of the two.

한국형 간호사 근무환경 측정도구 개발 및 평가

박소희,강지연,Park, So-Hee,Kang, Jiyeon 한국중환자간호학회 2015 중환자간호학회지 Vol.8 No.1

Purpose: The purpose of this study was to develop a valid tool for measuring the work environment of Korean nurses and test the validity and reliability of the instrument. Methods: This is a methodological study for developing and testing a measurement tool. The conceptual framework for the tool was formed through a literature review and in-depth interviews with clinical nurses. 260 meaningful statements were derived through this process, and 59 of the primary items were generated out of these statements. On the basis of the content validity test, 41 items were selected for the preliminary tool. A total of 350 nurses from 7 hospitals responded to the preliminary questionnaire in October 2011. Results: After the item analysis and the principal component analysis using varimax rotation methods, 11 items were deleted. Considering the conceptual framework and the scree plot, we extracted 4 factors from the final 30 items. These factors were organizational support, head nurse's leadership, support system, and relationship with coworkers, and their total variance was 54.4%. The value of Cronbach's ${\alpha}$ of the final tool was 0.92. Conclusion: The above findings revealed that the Korean Nursing Work Environment Scale (K-NWES) is an appropriate, valid, and reliable tool for evaluating the work environment of Korean nurses. Further research to perform a criterion validity test of the K-NWES is needed.

유전체 코호트 연구의 주요 통계학적 과제

박소희,Park, So-Hee 대한예방의학회 2007 예방의학회지 Vol.40 No.2

When conducting large-scale cohort studies, numerous statistical issues arise from the range of study design, data collection, data analysis and interpretation. In genomic cohort studies, these statistical problems become more complicated, which need to be carefully dealt with. Rapid technical advances in genomic studies produce enormous amount of data to be analyzed and traditional statistical methods are no longer sufficient to handle these data. In this paper, we reviewed several important statistical issues that occur frequently in large-scale genomic cohort studies, including measurement error and its relevant correction methods, cost-efficient design strategy for main cohort and validation studies, inflated Type I error, gene-gene and gene-environment interaction and time-varying hazard ratios. It is very important to employ appropriate statistical methods in order to make the best use of valuable cohort data and produce valid and reliable study results.

디자인 기여 속성 도출 및 서비스 품질 관점에 따른 분류 체계에 관한 연구

박소희(Park So Hee),정식길(Jung Suk Gill),김원영(Kim Won Kyung),곽대영(Kwak Dae Young) 한국디지털디자인협의회 2012 디지털디자인학연구 Vol.12 No.4

세계 경영환경에서는 고객 경험 중심의 서비스화가 강조되고 디자인이 핵심 경쟁력으로 대두하고 있으나 국내 디자인 활동영역이 기업성과에 미치는 영향은 저평가되고 있다. 따라서 본 연구에서는 디자인 산업의 육성을 위하여 신서비스 및 고객경험가치 중심의 디자인 기여 속성을 도출하여, 국내 디자인 기업의 지속적인 성장을 위한 가이드를 제시하는데 연구의 목적이 있다. 연구의 이론적 배경을 위해 국·내외의 디자인평가지표 및 선 행 연구의 사례를 통하여 총 107개의 디자인 기여 속성을 도출하고, 이를 바탕으로 전문가 인터뷰와 요인분석을 통해 서비스 품질의 분류체계인 결과적, 과정적, 이미지적 속성으로 분류하여 문항 분석을 하였다. 이러한 과정을 통해 결과적 속성에 기능적 완성도, 기술혁신, 소재, 내구성, 재료의 5개의 성분, 적응성, 소비자 이미지 반영, 쾌적성, 고품질 디자인, 의미성, 흥미성, 감각적·지적자극 만족, 능률메지시성, 명확한 정보전달, 실용 성, 역동의 과정적 속성에 11개의 속성, 유저인터페이스, 편리성, 재료, 무게, 유용성, 실용성, 아이디어, 유니버셜 디자인, 기능적 완성도, 인간공학, 기능의 시각화, 합리성, 소재, 생활의 기여도, 취급성으로 이미지적 속성에 15개의 속성을 도출하여 분류하였다. 또한, 기여 속성과 각 하위요인 간의 상관분석을 통해 각각의 하위요인들이 독립된 요인으로 구분되는 동시에 서로 내용을 공유하고 있음을 검증하였다. 이러한 연구를 통하여 새롭게 분류된 구성요인과 디자인 기여 속성을 비교하여 서비스 관점에서의 평가 및 수준 진단, 디자인 개발과정에서의 고려할 점등의 가이드를 제시하는데 연구의 의미가 있다고 볼 수 있다. In the global management environment, customer experience centered service has been emphasized, and design has been emerged as critical competitiveness. But, the effects of domestic design activity area on corporate achievements are undervalued. Therefore, this work is intended to draw design contribution attributes focusing on new services and customer experience value in order to enhance the design industry, and consequently propose guidelines on the sustainable growth of domestic design companies. For the theoretical background of this work, this researcher explored domestic and foreign design evaluation indexes and previous studies, and as a result drew a total of 107 design contribution attributes. On the basis of the data, this researcher interviewed experts and performed a factor analysis to classify factors into consequent, procedural, and image attributes in the classification system of service quality. Therefore, consequent attributes included 5 ones: functional perfection, technological innovation, materials, durability, and components; procedural attributes included 11 ones: adaptability, reflection of consumer image, freshness, high quality design, meaningfulness, interest, sensory and intellectual satisfaction, efficient message, accurate information delivery, practicability, and dynamism; and image attributes included 15 ones: user interface, convenience, components, weight, usability, practicability, idea, universal design, perfection of function, human engineering, visualization of function, rationality, materials, contribution to life, and treatment. Also, correlation between contribution attributes and their sub factors was analyzed, and it was found that each sub factor became an independent factor and shared their contents with each other. This work is meaningful in the point that newly classified factors were compared with design contribution attributes, and that guidelines on evaluation and level diagnosis from the service perspective, and something to be considered in the design development process were proposed.

Unity3D와 아두이노를 이용한 사용자의 생체 신호 실시간 반영

박소희(So-Hee Park),박종승(Jong-Seung Park) 한국정보과학회 2014 한국정보과학회 학술발표논문집 Vol.2014 No.12

톡톡한 한경이: 학내 챗봇 서비스 설계 및 개발

박소희 ( So-hee Park ),김미희 ( Mihui Kim ) 한국정보처리학회 2020 한국정보처리학회 학술대회논문집 Vol.27 No.1

본 논문에서는 한경대학교 학생들에게 빠르고 정확하게 학내외 정보를 제공하기 위하여 개인의 스마트폰 보급과 흔히 사용되는 메신저 서비스에 맞춰 이에 기반한 챗봇 서비스를 설계하고 개발한다. 본 챗봇 서비스를 통해 학교 홈페이지, ARS, 어플리케이션 설치 등을 이용한 방법보다 더욱 빠르게 시공간의 제약 없이 원하는 학교 내 정보를 얻을 수 있다.

이동형 RFID를 이용한 관람 정보관리 시스템의 개발

박소희(So-Hee Park),문병철(Byeong-Cheol Mun) 산업기술교육훈련학회 2009 산업기술연구논문지 (JITR) Vol.14 No.1

A portable RFID(Radio Frequency Identification) has extended in various application field because it is now possible to recognize a lot of information of identifying object at once through wireless, long distance frequency. Particularly, we need an efficient information management system which manages and controls information using RFID technology. And the information management system should offer complexity and various information to many people at the same time. This paper presents an information management system which provides a systematic information of inspecting objects and visitors in case of disorders in a museum or a huge exhibition. The developed system performs that a RFID controller recognize a RFID tag identifier through wireless AP from database server in Client/Server environment based on ethernet. The visitors are provided more information of inspecting objects from database server at realtime, using a PDA with RFID reader and an RFID card to register its information. The exhibition manager can catch hold of the confusion degree as a whole or a zone through registering the information of inspecting objects and taking the reservation of visitors on web previously, therefore it is possible to manage the exhibition effectively. And they are able to printout the circumstances of exhibition on web if needed.