• Title/Summary/Keyword: Historical development

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Comparison of different post-processing techniques in real-time forecast skill improvement

  • Jabbari, Aida;Bae, Deg-Hyo
    • Proceedings of the Korea Water Resources Association Conference
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    • 2018.05a
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    • pp.150-150
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    • 2018
  • The Numerical Weather Prediction (NWP) models provide information for weather forecasts. The highly nonlinear and complex interactions in the atmosphere are simplified in meteorological models through approximations and parameterization. Therefore, the simplifications may lead to biases and errors in model results. Although the models have improved over time, the biased outputs of these models are still a matter of concern in meteorological and hydrological studies. Thus, bias removal is an essential step prior to using outputs of atmospheric models. The main idea of statistical bias correction methods is to develop a statistical relationship between modeled and observed variables over the same historical period. The Model Output Statistics (MOS) would be desirable to better match the real time forecast data with observation records. Statistical post-processing methods relate model outputs to the observed values at the sites of interest. In this study three methods are used to remove the possible biases of the real-time outputs of the Weather Research and Forecast (WRF) model in Imjin basin (North and South Korea). The post-processing techniques include the Linear Regression (LR), Linear Scaling (LS) and Power Scaling (PS) methods. The MOS techniques used in this study include three main steps: preprocessing of the historical data in training set, development of the equations, and application of the equations for the validation set. The expected results show the accuracy improvement of the real-time forecast data before and after bias correction. The comparison of the different methods will clarify the best method for the purpose of the forecast skill enhancement in a real-time case study.

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A study on Characteristics of Chinese Style Reflected in the Vivienne Tam Collection (비비안 탐 컬렉션에 나타난 중국풍 디자인 특성 연구)

  • Jiang, Lanying;Park, Juhee
    • Fashion & Textile Research Journal
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    • v.21 no.5
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    • pp.527-539
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    • 2019
  • This study examined the Chinese style in the Vivienne Tam collection as well as explored diversity and modern interpretation of a Chinese style used in modern fashion. The study also investigated the concept and history of the Chinese style as well as analyzed the Chinese style in the collection based on a consideration of a Chinese element that is the basic structure with an understanding of Vivienne Tam and general collection themes. As a result of research, the Chinese style appeared in the Vivienne Tam collection was comprehensive with 43 Chinese elements including Animals, Flower & Grass among the Nature elements, Mythology Religion among the Figure elements, Historical Artifacts, Clothing, Oral Literature, Entertainment, Fine Arts. Technique, Folk holiday among Culture elements and Philosophy among Spirit elements, which accounted for 57.6% of the collection. The formative characteristics that included Chinese elements were extended, abstracted, distorted or transformed; in addition, some abstract elements were embodied into animals, images and certain particular forms to present a theme. In addition to two-dimensional method to print Chinese elements on fabric, they were also expressed as a three-dimensional texture or a silhouette, achieving clear and bold harmony. The aesthetic characteristic is a mixture of Eastern and Western way of thinking. Her costume has a political and historical meaning beyond the imitation of elements that represent the development of a pleasant and interesting design.

The Study of Historical Analysis and Educational Extension on Derangement (교란순열에 대한 역사적 탐색과 교육적 확장에 대한 연구)

  • Suh, Bo Euk
    • Journal for History of Mathematics
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    • v.32 no.2
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    • pp.61-77
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    • 2019
  • The study was conducted based on the 'method of mathematical exploration through history'. In recent school education, 'Probability and Statistics' education has been emphasized, and as a result, the study has conducted a study on permutations. Permutation is used in a variety of fields, and in this study, we looked at the Derangement. The results of this study are as follows. First, analysis was made at current school mathematics level and academic mathematics level for Derangement. Second, the historical development process of derangement was examined. Third, based on this, the research direction of this study was decided to be 'Derangement number's triangle(Rencontres number's triangle)', and the inquiry for education expansion was carried out. Fourth, we have presented data on concrete educational expansion by discovering various mathematical facts of the Derangement number's triangle. We hope that the results of this study will provide meaningful implications for the application of mathematics and the presentation of new inquiry directions.

A Characteristics of Scenic Maintenance Regime with Integral Planning in Mojiko-Retro District (모지코 레트로지구의 경관관리제도와 중점지구 통합 계획적 특성)

  • Kim, Do-Yeon;Yoo, Jae-Woo
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.35 no.1
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    • pp.63-72
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    • 2019
  • The purpose of this study is that investigated the characteristics of integral planning related factors using the history and culture of Mojiko. It is a small city that has been urbanized after the opening of the port for logistics transportation in the modern period of Japan. As the function of the logistics city, which is the factor of the expansion of the town, declined, Mojiko applied the retro concept to the harbor which has lost its popularity due to the regional characteristics of the city to increase and revitalize local visits. Mojiko has steadily promoted the retro style of landscape and town development over 30 years, focusing on 18 Historical buildings and modern infrastructure. We analyzed characteristics of integrated urban planning include the regulation, landscape institution. Moreover, we suggest the result of the designation process of a core scenery maintenance district and the components of the plan after the designation analysis and provide essential data for revitalizing the field based on the historic city for the cultural establishment and beautiful town in the future. And deliver vital data to reviving the area based on the historical city culture establishment and beautiful town in the future.

Cognitive Characteristics of Social Space on Town Wall Villages in Busan and Gyeongnam Areas - The village of Seongbuk in Gadeok-Island and Ungcheon in Jinhae - (부산·경남지역 읍성 마을에서의 사회적 공간의 인지 특성 - 가덕도 성북(城北)마을, 진해구 웅천(熊川)마을을 대상으로 -)

  • Son, Young-Rim;Lee, In-Hee;Yoo, Jae-Woo
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.35 no.11
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    • pp.109-116
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    • 2019
  • Seongbuk Village and Ungcheon Village are Town Wall Villages that reflect social and historical backgrounds. villagers have formed villages based on community life. The streets and places of the villages are accumulated as images in the memory of the inhabitants. Based on their imagination-concept, 30 sketch maps, reflecting residents' cognitive perception were collected. Analysis of 30 sketch maps shows that other forming of Collective maps. In the past, Villages historical facilities had changed roles, but the relationship between the place and the place has been continuous, and according to the development process of the villages, the relationship between streets and places has been formed. Following this, the analysis methodology of social spaces and sketch will be examined in depth.

Development of deep autoencoder-based anomaly detection system for HANARO

  • Seunghyoung Ryu;Byoungil Jeon ;Hogeon Seo ;Minwoo Lee;Jin-Won Shin;Yonggyun Yu
    • Nuclear Engineering and Technology
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    • v.55 no.2
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    • pp.475-483
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    • 2023
  • The high-flux advanced neutron application reactor (HANARO) is a multi-purpose research reactor at the Korea Atomic Energy Research Institute (KAERI). HANARO has been used in scientific and industrial research and developments. Therefore, stable operation is necessary for national science and industrial prospects. This study proposed an anomaly detection system based on deep learning, that supports the stable operation of HANARO. The proposed system collects multiple sensor data, displays system information, analyzes status, and performs anomaly detection using deep autoencoder. The system comprises communication, visualization, and anomaly-detection modules, and the prototype system is implemented on site in 2021. Finally, an analysis of the historical data and synthetic anomalies was conducted to verify the overall system; simulation results based on the historical data show that 12 cases out of 19 abnormal events can be detected in advance or on time by the deep learning AD model.

Historical Studies on Scientific Research of Mycologist Sam Soon KIM (균학자 김삼순 연구활동의 과학사적 접근)

  • You-Jeong Sun;Geun Bae Kim
    • The Korean Journal of Mycology
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    • v.50 no.2
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    • pp.75-92
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    • 2022
  • Sam Soon KIM was a female scientist who pioneered mycology in South Korea. She not only created the Korean Society of Mycology and the Korean Journal of Mycology but also achieved extraordinary results in the studies of mycology. After returning from Kyushu University in Japan in 1966, she turned her attention to the applied research of microorganisms. Kim pursued an earnest exploration of the practical values of bacteria in addition to those of fungi and mushrooms. Then, with the founding of the Korean Society of Mycology in 1972, she emerged as the central figure in the rare academia of mycology. Particularly, mushroom research, which had been stagnant, became revitalized by the joining of researchers from the Rural Development Administration. Taking this as momentum, Kim moved beyond applied research, such as mushroom cultivation, and led the mushroom name unification plan from 1978. She also studied mushroom classification and eventually launched publishing an illustrated book of mushrooms. These fruits of her long-term research trajectory led her to be known as a mushroom expert.

Development of an Approximate Cost Estimating Framework for River Facility Construction at Planning Stage (하천시설물 공사의 기획단계 개략공사비 산정체계 개발)

  • Shin, Jung Min;Woo, Sungkwon;Lee, Si Wook;Kim, Ok Ki
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.28 no.3D
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    • pp.371-381
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    • 2008
  • The systematic methodology for estimating construction cost approximately at planning and pre-design phase of a river facility construction project has not yet been established because of its unique characteristics including its relatively small project size in terms of cost. This research suggests a 4-level cost information structure and identifies critical factors affecting construction cost as a result of thorough analysis of accumulated historical cost data of river facility construction projects. Also, this research presents the framework of the approximate cost estimating methodology for river facility construction project a planning stage.

The Duty and Role of Uiseoseubdoggwan(Medical Learning Officer) in the Joseon Dynasty Examined through the Historical Trace of IM Won-jun(任元濬, 1423~1500) (임원준의 사적을 통해 본 조선시대 의서습독관의 직무와 역할)

  • LYU Jeong-ah
    • The Journal of Korean Medical History
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    • v.36 no.1
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    • pp.51-72
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    • 2023
  • IM Won-jun(任元濬, 1423~1500) was an Confucianism Doctor in the former period of Joseon Dynasty. Through IM Won-jun's historical trace we could know the range of Uiseoseubdoggwan(Medical Learning Officer)'s duty not limited to study medical books at that time but extended to medical treat, educate, recommend medical policy, personnel manage, carry out administrative work, carry out all the works concerned with medical books, make new medicines at different official period. Among these after learning duties the Royal Family of the Joseon Dynasty awarded high grades to medical treatment for king and king's mother, but from the viewpoint of advancement of medicine controling the top of medical policy as a chief of Jeonuigam had important meaning. The system of Uiseoseubdoggwan(Medical Learning Officer) in the Joseon Dynasty played the role of cultivating widely the man of ability who leaded medical development by sharing the man of ability between medicine and confucianism which was dominant learning at that time, so the knowledge and professional skill of medicine, Yin-Yang and the Five Elements theory, the spirit of relief of the world were spreaded across to national administration, education, publication culture, putting philosophy of filial piety into practice in the Joseon Dynasty.

The Advantages of Acceptance of Neo-Confucianism during the Joseon Dynasty: South Korea History

  • Hee-Joong Hwang
    • Journal of Koreanology Reviews
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    • v.3 no.1
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    • pp.15-21
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    • 2024
  • Neo-Confucianism fettered the society and the individuals regulating such aspects as roles and relationships within a family, rites, and ceremonies. The mandated practice of filiality challenged the Confucian paradigm of gender relations, exposing women to men and the notion of following elders' instructions, which preserved authoritarian power relations within an ancestral line. This ideological base was beneficial for preserving social stability and integrity and aimed to create a set of ideals and norms that would apply to everyone, thus keeping people together. This conceptual investigation aims to identify the benefits of accepting Neo-Confucianism during the Joseon Dynasty and how it emerged as the foundation for the nation's and society's governance. Neo-Confucianism was not an immobile value system but an active factor contributing to the success, development, and positive changes in Joseon Korea; it is the aim of this study to provide a comprehensive account and exegesis of the role and impact of Neo-Confucianism in the Korean historical process. The study will examine the lessons that can be drawn from these historical facts of South Korean history in the modern state, particularly in the areas of governance, education, and social integration.