• Title/Summary/Keyword: Sangbok

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캐비티 공진기를 이용한 반고체 상태 물질의 복소 비유전율 측정 방법 (Method for Measurement of Complex Relative Permittivity of Semi-Solid Materials Using Novel Cavity Resonator Design)

  • 박래승;장지현;박병덕;김준환;박상복;정용식;천창율
    • 한국전자파학회논문지
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    • 제25권8호
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    • pp.872-878
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    • 2014
  • 본 논문은 새로운 캐비티 공진기 구조를 이용한 반고체 상태 물질의 복소 비유전율 측정 방법을 제안하고 있다. 윗면에 개구면이 존재하고, Ground 판이 분리되어 있는 구조를 이용하여 반고체 상태 물질도 캐비티 내부에 위치할 수 있도록 했다. 공진주파수의 변화와 Critical-Points Method를 이용해 실험적으로 증류수와 0.9 % 식염수의 복소 비유전율을 측정하였으며, 측정값을 Cole-Cole Equation을 통해 이론값과 비교했다.

Office Environment and Musculoskeletal Complaints of Office Workers

  • Park, Myoung Hwan;Lee, Sangbok;Jeong, Byung Yong
    • 대한인간공학회지
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    • 제34권6호
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    • pp.609-622
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    • 2015
  • Objective: This study aims to investigate the correlation between office and work environment satisfaction levels and workers' musculoskeletal symptoms by conducting surveys asking office workers to state their musculoskeletal symptoms and office and work environment satisfaction levels. Background: The increased number of office workers and their indoor work hours using computers have led to new understandings of the importance of office environment including its temperature, humidity, noise levels, lighting and quality of air, and work environment including monitor arrangement, space arrangement and the functions of desks and chairs. Method: Specific details on office work, office environment satisfaction levels, work environment satisfaction levels, musculoskeletal symptoms, absence from work and treatment due to musculoskeletal related symptoms were analyzed based on the survey answers given by 397 office workers who were the subjects of this research. Results: Office workers showed different characteristics of musculoskeletal symptoms depending on their gender, age, work experience, office hours, break time and time spent on computers. Also, differences in symptoms were found for workers'with different satisfaction levels for office environment (temperature, humidity, noise levels, quality of air, lighting) and work environment (location of monitors, area and display of office space, chairs and desks). ANOVA shows the differences between groups of subjects classified by the experience of work-absences and treatments or pain complaints. Conclusion and Application: Relationship between workers' satisfaction levels with the office and work environment and their musculoskeletal symptoms is expected to be served as essential data for systematic management of the workplace.

베이스 경신법을 활용한 구조물 안전성평가 개선 (Improvement in Safety Evaluation of Structures using the Bayesian Updating Approach)

  • 박기동;이상복;김준기;나창순
    • 한국전산구조공학회논문집
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    • 제29권2호
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    • pp.115-122
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    • 2016
  • 기존 건축물의 구조 안전성평가와 보수 보강 시에는 해당 건축물의 상태를 정확히 알기 위해 현장 또는 실험실에서의 실험을 수행하는 경우가 많고 최초설계 단계와 다르게 시공된 건축물의 실제 상태 등을 구조해석 모델에 반영하게 된다. 이 경우, 각종 실험값을 전통적인 통계학적 방법은 구조기술자가 지닌 경험과 지식은 구조모델링 및 해석에서 아무런 가치를 더 할 수가 없다. 본 논문은 현장 및 실험실에서 얻은 단순한 실험값을 구조기술자의 축적된 경험과 지식을 변수로 활용하여 보다 유효하게 구조해석 모델에 필요한 데이터로 개선하는 방법으로서 통계학적인 베이스 경신법을 이용한 안전성평가 방법에 대해 살펴보았다. 구조기술자의 적절한 판단이 변수로서 포함되면 적은 개수의 샘플 수로도 비교적 정확한 값의 최종 예측값을 산정할 수 있어 전통적인 통계학적 접근에 비해 보다 실제값에 근접한 예측값을 구할 수 있는 것을 확인하였다.

Measuring and Modeling the Spectral Attenuation of Light in the Yellow Sea

  • Gallegos, Sonia-C.;Sandidge, Juanita;Chen, Xiaogang;Hahn, Sangbok-D.;Ahn, Yu-Hwan;Iturriaga, Rodolfo;Jeong, Hee-Dong;Suh, Young-Sang;Cho, Sung-Hwam
    • Journal of the korean society of oceanography
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    • 제39권1호
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    • pp.46-56
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    • 2004
  • Spectral attenuation of light and upwelling radiance were measured in the western coast of Korea on board the R/V Inchon 888 of the Korean National Fisheries Research and Development Institute(NFRDI) during four seasons. The goal of these efforts was to determine the spatial and temporal distribution of the inherent and apparent optical properties of the water, and the factors that control their distribution. Our data indicate that while stratification of the water column, phytoplankton, and wind stress determined the vertical distribution of the optical parameters offshore, it was the tidal current and sediment type that controlled both the vertical and horizontal distribution in the coastal areas. These findings led to the development of a model that estimates the spectral attenuation of light with respect to depth and time for the Yellow Sea. The model integrates water leaving radiance from satellites, sediment types, current vectors, sigma-t, bathymetry, and in situ optical measurements in a learning algorithm capable of extracting optical properties with only knowledge of the environmental conditions of the Yellow Sea. The performance of the model decreases with increase in depth. The mean absolute percentage error (MAPE) of the model is 2% for the upper five meters, 8-10% between 6 and 50 meters, and 15% below 51 meters.

조선 초기 태조어진 봉안의식에서 관찰사의 역할과 관복 -『세종실록』을 중심으로- (The Province Official's Roles and Uniforms in the Enshrinement Rituals of the Royal Portrait of King Taejo in the Early Joseon Dynasty -Focused on the 『Sejong Chronicles』-)

  • 박현정
    • 한국의류학회지
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    • 제40권5호
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    • pp.801-814
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    • 2016
  • This study uses the "Sejong chronicles" ritual manual to investigate the movements and roles of provincial governors during the enshrinement rituals of the royal portrait, the official uniforms of the provincial governors in their roles, and the characteristics of the official uniforms system for local governors in the early Joseon Dynasty. The results of this study are as follows. Provincial governors who participated in the enshrinement rituals of the royal portrait were governors 'en route' and governors 'in destination'. The movements of the governor 'en route' followed the provincial borders, official residences, and neighboring provincial borders. The movements of the governor 'in destination' followed the provincial borders, the official residence, and jinjeon. The roles of the governors included the welcoming ceremony, the bow-down ceremony, the front guard, and the farewell ceremony. The governors 'en route' wore Jobok in the welcome ceremony, and a Sibok in the bow-down ceremony before the farewell. The governor 'in destination' wore Jobok in the welcome ceremony, and Jobok (or Sibok if Jobok was not available) in the bow-down ceremony before the farewell. The characteristics of the official uniforms system for local governors in the Joseon Dynasty were as follows. First, the governors wore different uniforms depending on the importance of the rituals in the early Joseon Dynasty. Second, the names of official uniforms Sang-bok and Si-bok were used interchangeably in the early Joseon Dynasty. Third, local governors were allowed to wear Sangbok (or Sibok) instead of Jobok.

제습기산업의 유통경로별 서비스품질이 고객만족 및 고객충성에 미치는 상호관계에 대한 연구 (A Study on the Interrelationship among Service Quality, Customer Satisfaction and Customer Loyalty by Distribution Channel, in the Dehumidifier Goods Industry)

  • 김규식;이상복
    • 품질경영학회지
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    • 제42권4호
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    • pp.665-684
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    • 2014
  • Purpose: The purpose of this study was to test and verify on the interrelationship among Service Quality, and Customer Satisfaction and Customer Loyalty in the Humidifier Goods industry. Especially, we study on the relative importance of each CS variables by distribution channel. Nowadays, most of manufacturing companies are proceeding the product servitization, which is combined service contents with product characteristics in the field of manufacturing industries. Methods: We surveyed humidifier purchaser about the some of CS variables and analyzed it using SPSS 21.0 and AMOS 21.0 as a statistical analysis tool. We use the frequency analysis, confirmatory factor analysis, multi-regression analysis and structural equation modeling analysis for our empirical study. Results: As the result of study, we find that Service Quality(SQ) influence Customer Satisfaction(CS) and CS influence Customer Loyalty(CL). Also, we verify that CS works mediate interaction on the effects between SQ and CL. And there are the significant relative effect of SQ to Customer Satisfaction in some of distribution channel. Conclusion: Finally, we make certain that the market size of the Humidifier goods industry will be increased rapidly. And the distribution channe l is more important to medium and small-sized enterprise. So, we have to pay attention to the study on the distribution channel of the Humidifier goods industry. And then, we expect more researches and studies on Service Quality and Customer Satisfaction in the field of manufacturing industries.

고려시대와 송대의 관복 비교연구 - 공.상복을 중심으로 - (The Comparative Study of Koanbok between the koryo and Sung Dynasty)

  • 서옥경
    • 복식
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    • 제31권
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    • pp.131-144
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    • 1997
  • This thesis is mainly on the study of Gongbok and Sangbok in the system of official outfit of the Koryo dyn-asty which has not yet fully studied in the history of Koren dress and its ornaments. Even in this difficult circumstances the sys-tem of dress and its ornaments can be under-stood with the help of remaining Buddhi-stliterature. Thus the system of official outfit in the Koryo dynasty has been studied here with some documentary records such as Koryo-dokyung Koryosa-yeobokji (The His-tory of Dress And Its Ornaments in The Koryo Dynasty) and so on. As the Koryo dynasty de-veloped her international relationships continu-ously with her neighbouring nation which were geographically closely connected so the systems of official outfit in the Chinese dyn-asty of Sung had to be studied and compared with, In the Koryo dynasty the same four colour system of purple red, deep red and green had survived until the year of 1123 from the year of 960 not using the blue colour from the four colour system of purple Chinese red green and blue of the Sung dynasty. The four colour system of purple deep red green and black under the regin of the King Euijong was exactly the same as that of official outfit of the Sung dynasty in he year of 1078 the first year of Wonpung's regin and wearing Eodae is a sure sign of influence of the system of Sung dynasty. Even though Koryo was invaded by Yuan druing the period of the regin of the King Chungyul the four colour system was not changed of purple deep red. green and black along with the same Dae-sudanryung(long sleeve and round collar). In 1387 the thirteenth year of the King Woo of the Koryo dynasty Pumdae was used ofor different official ranks and the sys-tem of wearing Samo and Dayung was established for the official outfit of every government officers.

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조선 숙종조 탐라순력도를 통해 본 상급 관원복식 (High Government Officials' Costumes as Illustrated in Tamna Sullyeokdo at the Era of King Sukjong of the Joseon Dynasty)

  • 장현주;이주영
    • 복식
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    • 제57권3호
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    • pp.108-123
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    • 2007
  • The purpose of this study is to investigate costumes worn by high government officials which are illustrated in Tamna Sullyeokdo at the era of King Sukjong of the Joseon Dynasty. The findings of the study are as fellows: 1. Tamna Sullyeokdo showed that Moksa wore an simplified version of Jobok at a congratulatory ceremony. They wore Sibok at such events as examinations, Yeonhyang or Jinsang. Particularly at Yeonhyang, Samo was decorated with some red flowers. The officials wore Yungbok when they were participated in military training, hunting or arrow shooting competitions. They wore Pyeonbok when they go on a trip 2. Pangwan wore Sibok when they took an examination. They wore Yungbok during military training while they wore Pyeonbok during Tamseung. 3. Hyeongam wore Sangbok at a congratulatory ceremony. When they take part in military training, examinations, Yeonhyang or Jinsang, those officials wore Sibok. They also wore Yungbok during military training, Yeonhyang or Jinsang. They wore Jurip decorated with some red flowers during Yeonhyang. And they wore Pyeonbok when they were inspecting military training of Seongjeonggun. 4. Gungwan wore Yungbok at every events. They wore Jurip decorated with Hosu and Jeonrip on their head, and wore Cheolrik during military drills, arrow shooting competitions, examinations, Jinsang, or Tamseung. They wore Jeonip decored with red flowers during Yeonhyang. During regular military trainings, those officials wore Jeonrip decorated with Sangmo on their head and wore Cheolrik and Jeonbok. During Tamseung, they wore Jeonrip decorated with Sangmo on their head and wore Jeonbok with Jungchimak or a set of Jeogori and Baji.

한국 근해 수온의 주기적 변화(II). 삼도와 중지도 해역 표면수온의 년주변화 및 장주기 변화 (Periodic Variations Of Water Temperature In The Seas Around Korea(II). Annual And Long Term Variations Of Surface Water Temperature In The Regions Of Mishima And Okinoshima)

  • 한상복
    • 한국해양학회지
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    • 제5권2호
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    • pp.41-51
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    • 1970
  • 수권(Hydrosphere)은 기권(Atmosphere)과 암권(Lithosphere)의 중간에 있으며 이에 대한 연구는 지구 물리학 분야에서 가장 중요하게 다루어 지는 것 중의 하나이다. 특히 수권의 70% 이상을 차지하고 있는 해양에서의 환경 변화를 조사하는 것은 해황의 변동을 예측하여 수산업이나 기타의 해중 시설물을 설치하는 데 중요한 자료를 제공해 주는 기초 적인 분야이다.

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외래 환자의 임상특성이 예약 부도에 미치는 영향 분석 (Analysis of the Effect of Patients' Clinical Conditions on No-Shows)

  • 이상복;박기택;정광헌
    • 한국전자거래학회지
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    • 제22권4호
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    • pp.53-69
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    • 2017
  • 본 논문에서는 환자들의 임상특성이 예약 부도에 미치는 영향을 분석하고자 한다. 미국의 한 보훈병원에 있는 7,055명 환자들의 진단 상병명과 그들의 예약 부도 데이터를 이용하여 진단 상병에 따른 예약 부도의 차이, 진단 상병의 개수에 따른 차이에 대해서 분석 및 비교를 실시하였다. 약물 중독, 우울증과 같은 정신질환과, 고혈압과 같은 만성 질환에서 예약 부도가 유의하게 높게 나타났다. 진단 상병의 개수가 증가할수록 예약 부도가 감소하는 것을 확인할 수 있으나, 진단 상병의 개수가 4개를 넘어서면 예약 부도가 통계적으로 유의하게 감소하지 않는 것으로 나타났다. 이러한 통계적 분석 과정을 통해 의료 환경에서 수행하고 있는 진료 및 예약 부도 관리의 문제점을 식별하여 제시하였다. 본 논문의 결과는 병원의 예약 부도에 대한 해결책을 찾는데 이용될 수 있다고 판단된다.