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).

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.

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.

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.

연구논문 : 부재료를 달리하여 제조한 김치의 소비자 기호도 및 관능적 특성

박소희 ( So Hee Park ),이종호 ( Jong Ho Lee ) 한국식품조리과학회(구.한국조리과학회) 2006 한국식품조리과학회지 Vol.22 No.3

패턴 학습이 가능한 TCAM 메모리를 이용한 비지도 학습

박소희(So-Hee Park),방민경(Min-kyung Bang),이언경(Eon-gyeong Lee),한재훈(Jae-Hun Han),구원모(Won-mo Koo),박성배(Seong-Bae Park),홍충선(Choong-Seon Hong),홍상훈(Sang-Hoon Hong) 대한전자공학회 2023 대한전자공학회 학술대회 Vol.2023 No.6

Processing in memory (PIM) is an attention drawing technology that provides a solution to the von Neumann bottleneck, which occurs in data transmissions between the CPU and memory, providing massive improvement in the overall data processing performance. In this paper, we propose unsupervised learning algorithm using the PIM artificial intelligence processors over TCAM. By using the data preprocessing of thinning and thickening, the MNIST data has clustered with 88.74% accuracy. It displays an advantage in that it consists of high accuracy even with a simple algorithm.

서비스디자인을 위한 Innovation 프레임워크 전략 및 평가에 관한 연구

박소희(So Hee Park),홍성수(Sung Soo Hong) 한국디자인문화학회 2011 한국디자인문화학회지 Vol.17 No.4

최근 세계의 산업 동향이 제조업에서 서비스업으로 변화하고 있다. 제조업 기반의 글로벌 기업이 점차적으로 제품의 서비스화, 서비스의 제품화를 중심으로 소비자 중심의 가치 창출과 전달을 핵심으로 삼고 있다. 특히 제조업 중심의 산업은 제조와 서비스의 결합을 추구하면서 Apple, Sony, HP등과 같은 제조기업의 서비스 기업화가 이루어지고 있으며, 국내의 제조기업의 서비스기업화도 급속도로 변화하고 있다. 하지만 국내의 디자인 현황은 새로운 영역으로 인식되는 과정에 있고, 정확한 개념과 산업에서의 위상이 정립되지 못하고 있다. 이러한 관점에서 본 연구에서는 서비스디자인의 이론적인 고찰 및 성공사례 분석과 원활한 조직 운영을 위한 내부 진단 솔류션인 맥킨지의 7S Model을 바탕으로 새로운 서비스디자인을 위한 Innovation 프레임 워크의 요인 및 현재의 상황을 파악해 보아야 하는 구성항목 및 평가 모델을 제안하였다. 첫 째, 구성 항목의 내용 및 평가 모델을 위하여 서비스 디자인에 대한 문헌연구 및 사례를 통하여 맥킨지의 7S Model을 기반으로 1S를 추가하여 8S의 전략을 제안하고, 현재 기업의 상태를 파악 할 수 있도록 30개의 구성 항목을 도출하였다. 둘 째, 도출 된 30개의 구성항목들 중에서 서비스 디자인을 위한 서비스 및 제품(Service & Product)에 대한 개선 전의 평가 모델을 제안하고, 이에 따라 통합적인 관점에서의 8S에 대한 평가를 도표화 하여 종합 평가를 비교·분석 할 수 있도록 하였다. 이러한 평가를 통해 통합적인 관점에서의 서비스 및 제품(Service & Product)의 평가 전·후의 중요한 구성항목에 따라 절대 평가 및 우선순위 평가가 가능하며, 가장 시급하게 되어져야 하는 문제점을 발견하여 개선안의 도출이 가능하다. 연구의 범위가 디자인영역에 제한되지 않고 전 서비스 프로세스를 고려하여 서비스디자인을 위한 Innovation 프레임워크를 개발 할 수 있도록 구성하였으며, 이는 서비스 디자인 선진 성공사례를 분석한 결과, 제품·서비스 개발 과정뿐 아니라 전사적 기업 활동 전반에 성공요인이 있는 것으로 분석되어 과제의 분석범위를 전사적 활동으로 확장하였다. 이러한 의미에서 본 연구는 서비스 디자인 선진기업과의 수준을 비교 할 수 있으며, 서비스디자인의 지속성장을 위한 기업내부의 수준 진단 및 역량을 분석 할 수 있는 혁신활동의 모델이 될 수 있다. 본 연구의 연구결과를 바탕으로 도출된 신규요인 및 기업 활동에서 서비스디자인 영역을 확대하여, 향후 고부가가치를 창출 할 수 있는 서비스 산업분야에 서의 활성화 될 수 있는 기회를 제공하리라 기대한다. Recent trends in the world in manufacturing, services industries are changing. Manufacturing-based service enablement of global companies increasingly products, commercialization of services centered, consumer-oriented value creation and delivery has served as the core. Especially, manufacturing-based industrie manufacturing and services, while pursuing a combination of Apple, Sony, HP, such as manufacturers and service companies made mad, domestic industrialization of the manufacturing company`s services are changing too rapidly. But the domestic status of the design in the process of being recognized as a new area, and the phase in the correct concepts and industry has not been established. From this perspective, In this study, a theoretical discussion of service design and analysis of successes for the organization`s operations and smooth internal diagnostic soultion based on McKinsey`s 7S Model Innovation framework for the design of new services and the factors that you should diagnose the configuration items proposed. First, the configuration item`s content and services designed to evaluate the model and case studies throughout the literature on McKinsey`s 7S Model is based on adding 1S 8S proposed strategy and the current so that companies can determine the status of 30 factors were derived. Second, as derived factors of 30 for service design services and products (Service & Product) proposed a model to improve the pre-assessment and, consequently, 8S from the perspective of an integrated and comprehensive assessment to evaluate the comparative tabulation was to allow analysis. The design of the study area is not restricted to the range I consider the service process for the Innovation and Service Design can be configured so that a framework was developed, which developed the design success analysis services, products and services as well as the enterprise development process success factors in the overall business activity is analyzed that the scope of the task analysis was extended enterprise activities. In this sense, this study design, advanced services can be compared with the level and duration of service design for the growth of a company`s level of diagnostic and analytical capabilities that can serve as a model of innovative activity can be. Based on the findings of this study, a new factor derived by expanding the design through a changed future, you can create high value-added services industry provides an opportunity to be active would hope.

깍두기의 이화학적 품질 지표와 관능적 지표간의 상관관계

박소희(So Hee Park),임호수(Ho Soo Lim) 한국조리학회 2008 한국조리학회지 Vol.14 No.3