• Title/Summary/Keyword: discrimination condition

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Cloud Detection Using HIMAWARI-8/AHI Based Reflectance Spectral Library Over Ocean (Himawari-8/AHI 기반 반사도 분광 라이브러리를 이용한 해양 구름 탐지)

  • Kwon, Chaeyoung;Seo, Minji;Han, Kyung-Soo
    • Korean Journal of Remote Sensing
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    • v.33 no.5_1
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    • pp.599-605
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    • 2017
  • Accurate cloud discrimination in satellite images strongly affects accuracy of remotely sensed parameter produced using it. Especially, cloud contaminated pixel over ocean is one of the major error factors such as Sea Surface Temperature (SST), ocean color, and chlorophyll-a retrievals,so accurate cloud detection is essential process and it can lead to understand ocean circulation. However, static threshold method using real-time algorithm such as Moderate Resolution Imaging Spectroradiometer (MODIS), Advanced Himawari Imager (AHI) can't fully explained reflectance variability over ocean as a function of relative positions between the sun - sea surface - satellite. In this paper, we assembled a reflectance spectral library as a function of Solar Zenith Angle (SZA) and Viewing Zenith Angle (VZA) from ocean surface reflectance with clear sky condition of Advanced Himawari Imager (AHI) identified by NOAA's cloud products and spectral library is used for applying the Dynamic Time Warping (DTW) to detect cloud pixels. We compared qualitatively between AHI cloud property and our results and it showed that AHI cloud property had general tendency toward overestimation and wrongly detected clear as unknown at high SZA. We validated by visual inspection with coincident imagery and it is generally appropriate.

A Study on the Housing Adjustment in the First Half of Cho-Sun Dynasty - with special perspectives of microsociological approach - (조선전반기 가족의 주거조절에 관한 연구 - 미시사회학적 접근으로 -)

  • Hong, Hyung-Ock
    • Journal of architectural history
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    • v.2 no.1 s.3
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    • pp.25-41
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    • 1993
  • This study was made to analyze the housing adjustment phenomenon in the first half of Chosun Dynasty by applying Microsociological approach. By reviewing the housing adjustment theory of Morris and Winter, research model for the period was developed in terms of socioeconomic characteristics, normative housing deficit (=cultural norm-housing condition+family norm), constraints, behavioral propensities, and housing adjustment mechanism with the following results : 1. In the first half of Chosun Dynasty the size of the house, the house site and decorating items were specified by law (cultural norm) according to the social status. Although the law was constraints for the housing phenomenon, it was not applied universally. Frequantly the law was violated by the upper class. By the middle of the Dynasty the family norm became more important for the housing phenomenon than the cultural norm. 2. Efforts were made to practice the Confucianism as a cultural norm in the first half of Chosun Dynasty At that time Husband-Living-in-Wife's-House was more popular than Wife-Living-in-Husband's-House. Because the customs were against the Confucianism, the latter was encouraged by law. But it did not change. Instead a compromised system became popular in the middle of the Dynasty. The house shrine was practiced to increase the symbolism of the family, which, in turn, exerted influences in deciding the housing site (cultural norm). These cultural norm was not accepted as the family norm untill the second half of the Dynasty. These trends forced the man and woman use separate areas of the house, and formulated a hierarchic positions within a house. 3. It was shown that the settlement of Confucianism as a family norm was closely related to the popularization of the Ondol system in the house, which functioned as one of the behavioral propensities to encourage diversity of space for many purposes. Though the Ondol system was accepted as a useful heating system earlier, this became more popular in the middle of the Dynasty because the housing pattern with Ondol fitted very well with a large family system with patriarchism. Ondol system for one or two rooms substituted Ondol for all rooms in the second half of the Dynasty. 4. From the beginning of the Dynasty housing adjustment of the family was determined by the social status and by law (cultural norm). Within this cultural norm each family decided its adjustment mechanism according to its economic ability (family norm). Family norm was more important factor than the cultural norm to determine the micro-space pattern in the house. But this period witnessed the formations of new conditions by the ruling class's efforts to implement new ethics for hierarchy and sexual discrimination. According to these conditions the Confucianism overruled the family norm in the later period.

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Mineralogy and Genesis of the Sungsan Clay Deposits (聲山납석광상의 광물학적 및 성인적 연구)

  • Cho, Hyen-Goo;Kim, Soo-Jin
    • Journal of the Mineralogical Society of Korea
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    • v.7 no.1
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    • pp.14-24
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    • 1994
  • The Sungsan clay deposits have been formed by the hydrothermal alteration of volcanic and volcanoclastic rocks of the Hwangsan Formation of Cretaceous age. Claystones are mainly composed of dickite, alunite, illitic minerals and tosudite. The mineralogical properties of clay minerals have been studied using X-ray diffraction analysis, electron microscopy, electron microprobe analysis, and infrared absorption analysis. The physicochemical condition for the clay deposits also have been studied by the activity diagrams and mineral assemblages. Dickite, the dominant mineral in clay deposits, occurs generally as massive aggregates. It shows book-structure of well-defined hexagonal plates. Chemistry of dickite agrees with its ideal formula. Peak depth ratios in infrared absorption spectra were used for discrimination between pure and mixture of kaolin minerals. Five hydrothermal alteration zones are divided according to the mineral assemblages. From center to margin, alunite, dickite, illite and albite zones are discernible. Quartz zone occurs as small lenticular form in dickite zone. The formation of dickite and illite zones are promoted by decreasing $a_{k^+}$. An increase in $a_{H_{2}SO_{4}}$ or $a_{K_{2}SO_{4}}$ is required for the formation of alunite zone. Estimated temperature of formation ranges 110-270 $^{\circ}C$

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A Study on Gifted Students Academic Emotion, Metacognition, Self-Efficacy According to Gifted Students Selection Methods between the examination selection and the automatic promotion (영재학생의 시험선발과 자동진급방법에 따른 영재학생의 학업정서, 메타인지능력, 자기효능감에 관한 연구)

  • Jeong, Jin Sook;Choi, Sun Young
    • Journal of Science Education
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    • v.39 no.2
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    • pp.278-289
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    • 2015
  • The purpose of this study is to analyze selection methods of gifted students. This study focuses on the understanding the characteristics of gifted students in accordance with the selection methods, i.e. the examination selection and automatic promotion by analyzing and comparing the academic emotion, meta-cognition, and self-efficacy between gifted students selected according to the selection methods. Moreover, for the purpose of the effective gifted education, this study aims to arrange a reasonable basis for the discrimination and selection of gifted students. The results of this study were as follows. First, there was no meaningful difference between gifted students selected by an examination and promoted automatically in view of academic emotion, meta-cognition, and self-efficacy of gifted students. It is determined that there is no difference between the effects of selection methods under the condition of the same group of gifted students. Second, regarding the academic emotion of gifted students, there is no significant difference in both the elementary and middle school in case of examination selection. However, in case of the automatic promotion, the academic emotion of gifted students promoted automatically in the gifted education center was higher than that of the gifted students in the gifted class (p < .05). Regarding the meta-cognitive skill, there is no difference in the elementary school between the selection methods. In case of the examination selection in the middle school, the meta-cognitive skill of male students of the gifted education center was higher than that of the female and gifted class students (p < .05). In case of the automatic promotion in the middle school, the meta-cognitive skill of students of the gifted education center was higher than that of students of the gifted class (p < .05). As for the case of self-efficacy, there were no differences between the selection methods. In the automatic promotion, self-efficacy of students of the gifted education center was higher than that of students of the gifted class (p < .05).

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Effects of Emotional Information on Visual Perception and Working Memory in Biological Motion (정서 정보가 생물형운동자극의 시지각 및 작업기억에 미치는 영향)

  • Lee, Hannah;Kim, Jejoong
    • Science of Emotion and Sensibility
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    • v.21 no.3
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    • pp.151-164
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    • 2018
  • The appropriate interpretation of social cues is a crucial ability for everyday life. While processing socially relevant information, beyond the low-level physical features of the stimuli to emotional information is known to influence human cognition in various stages, from early perception to later high-level cognition, such as working memory (WM). However, it remains unclear how the influence of each type of emotional information on cognitive processes changes in response to what has occurred in the processing stage. Past studies have largely adopted face stimuli to address this type of research question, but we used a unique class of socially relevant motion stimuli, called biological motion (BM), which depicts various human actions and emotions with moving dots to exhibit the effects of anger, happiness, and neutral emotion on task performance in perceptual and working memory. In this study, participants determined whether two BM stimuli, sequentially presented with a delay between them (WM task) or one immediately after the other (perceptual task), were identical. The perceptual task showed that discrimination accuracies for emotional stimuli (i.e., angry and happy) were lower than those for neutral stimuli, implying that emotional information has a negative impact on early perceptual processes. Alternatively, the results of the WM task showed that the accuracy drop as the interstimulus interval increased was actually lower in emotional BM conditions than in the neutral condition, which suggests that emotional information benefited maintenance. Moreover, anger and happiness had distinct impacts on the performance of perception and WM. Our findings have significance as we provide evidence for the interaction of type of emotion and information-processing stage.

A Comparative Analysis of Subject Headings Related to Korean Border in the Subject Headings of Major Countries (주요 국가의 주제명표목표에 나타난 한국의 국경관련 주제명 비교 분석)

  • Kim, Jeong-Hyen
    • Journal of Korean Library and Information Science Society
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    • v.44 no.2
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    • pp.217-239
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    • 2013
  • This research was conducted to analyze the actual condition of subject heading related to Korean border shown in the subject headings of 7 countries: United States, France, Germany, Spain, Russia, China, and Japan. The results are as follows. To begin with, Korean border-related records in most other national libraries are in extremely poor conditions except for some countries like United States. Amnokgang and Dumangang-related records did not search at all in the France. Yellow Sea, Dumangang, and Baekdusan-related records did not search at all in the Spain. Second, even Dokdo we have effective control, the geographical name 'Korea' is not marked with catalog records except the United States and France. The Germany is displayed with the geographical name of 'Korea' and 'Japan'. Third, the East Sea(Donghae) already is marked with 'Sea of Japan' in most of the national library catalogs, and Yellow Sea(Huanghai) is marked with 'Yellow Sea'. Fourth, Amnokgang and Dumangang is marked with Chinese pronunciation in most in most of the national library. Fifth, Baekdusan is marked with Korean pronunciation in most countries. However the United States showed in 'Baekdu Mountain' and 'Changbai Mountain' discrimination. In the case of the Germany, 'Changbai Mountain' are marked with variant access point of 'Baekdusan'.

Performance Analysis of Load Control Model for Navigation/Guidance System on Flying Object (비행 물체의 유도제어 시스템 설계를 위한 하중(중력수) 제어 모델의 성능분석)

  • Wang, Hyun-Min;Woo, Kwang-Joon;Huh, Kyung-Moo
    • Journal of the Institute of Electronics Engineers of Korea SC
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    • v.46 no.1
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    • pp.87-96
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    • 2009
  • In conventional method, flight model is discribed to differential equation by linealization of nonlinear object motion equation. As state equation from differential equation of moving object, the controller is designed by transfer functions of each module under discrimination of stability criteria. But this conventional method is designed under limitation of nonlinearity from object's shape and speed. In other word, The greater part of guidance/navigation system was satisfied with the result of good performance for normal figure of flight object, not sudden changed flight condition, not high speed. But it is not able to give full play to its ability on flight object which has abnormal figure, sudden changeable motion, high speed. Therefore, in this paper was presented performance analysis of load control model for navigation/guidance system on flying object being uncertainty, non-linear like abnormal figure, sudden changeable motion, high speed and is presented method of trajectory control(controllability) ahead of controllability and stability to achieve flight mission. In other word, this paper shows the first step of Min-design method and flight control model.

Standardization and unification of the terms and conditions used for diagnosis in oriental medicine. II (한의진단명과 진단요건의 표준화 연구II (표준화 실례) - 2차년도 연구결과 중간 보고-)

  • Yang, Ki-Sang;Choi, Seung-Hoon;Choi, Sun-Mi;Park, Kyung-Mo;Jeong, Woo-Yeal;Ahn, Kyoo-Seok;Eom, Hyun-Seob;Kim, Seung-Hoon;Jeon, Byun-Hoon;Kim, Jeung-Beum;Kwon, Young-Kyu;Park, Jung-Hyeon;Kim, Dong-Hui;Jang, Hye-Ok;kim, Sung-Woo;Shin, Sang-Woo;Ko, Hyun
    • Korean Journal of Oriental Medicine
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    • v.2 no.1
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    • pp.381-401
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    • 1996
  • The diagnostic requirements were suggested and explained regarding the systems of differentiation of syptoms and signs in the second year study of standardization and unification of the terms and conditions used for diagnosis in oriental medicine. The systems were as follows : -differential diagnosis according to condition of body fluid, differentiation of syndromes according to the state of qi and blood, differential diagnosis according to reletive excessiveness or deficiency of yin and yang(氣血陰陽津液辨證) -differentiation of diseases according to pathological changes of the viscera and their interrelation(臟腑辨證) -analysing and differentiating of febrile diseases in accordance with the theory of the six channels(傷寒辨證) The individual diagnosis pattern was arranged by the diagnostic requirements in the following odor : another name(異名), notion of diagnosis parrern(證候槪念), index of differentiation of syptoms and sings(辨證指標), the main point of diagnosis(診斷要點), analysis of diagnosis pattern(證候分析), discrimination of diagnosis pattern(證候鑑別), a wayof curing a diseases(治法), prescription(處方) , herbs in common use(常用藥物), dieases appearing the diagnosis pattern(常見疾病), documents(文獻調査). This study was carried out on the basis of the Chinese documents and references.

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Identifying Factors Influencing Fish Production of Shallow-sea Aquaculture Based on the Dynamic Panel Model (동적패널모형을 이용한 천해어류양식 생산에 영향을 미치는 요인 분석)

  • Sim, Seonghyun;Nam, Jongoh
    • Ocean and Polar Research
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    • v.41 no.1
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    • pp.35-46
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    • 2019
  • The purpose of this study is to identify factors influencing fish production of shallow-sea aquaculture in South Korea. This study employed the two-way fixed effect and random effect models based on the panel models and also the difference between GMM and system GMM models based on the dynamic panel models using the amount of fish farming production, the number of stocked fry, the number of cultured fish, the amount of inputted feed, the farming area, the number of workers, and the sales price data from 2010 to 2017. First, the two-way fixed effect model of the panel models was selected by panel characteristics, time characteristics and Hausman tests and also the model was statistically significant. As a result of the two-way fixed effect model, the number of stocked fry, the amount of inputted feed, and the number of workers were identified as factors that increase the fish production of shallow-sea aquaculture. However, the number of cultured fish and the sales price were analyzed as factors that reduce the fish production of shallow-sea aquaculture. Second, the system GMM model of the dynamic panel models was selected by Hansen test and Arellano-Bond test in order to identify whether or not the over-discrimination condition is appropriate. Based on the system GMM model, the number of stocked fry, the amount of inputted feed, the number of workers in this year and 1 year ago, the number of cultured fish 2 years ago, and the sale price 3 years ago were analyzed as factors that increase the fish production of shallow-sea aquaculture. However, the amount of fish farming production 1, 2, 3 years ago, the farming area in this year, and the number of cultured fish in this year and 1 year ago were identified as factors that reduce the fish production of shallow-sea aquaculture. In conclusion, this study suggests that it is desirable to control the amount of stocked fry rather than to expand the farming area for fish farming in shallow-sea aquaculture, so as to keep the sale price at a certain level by maintaining the appropriate amount of fish production.

Exploring the Genres and Cast Portions' Influences on Broadcasting Entertainers' Professional Consciousness and Program Awareness (장르와 배역 크기에 따른 방송 연예인의 직업의식과 프로그램 의식 고찰)

  • Lee, In-Hye;Kwon, Sang-Jib
    • Journal of Korea Entertainment Industry Association
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    • v.13 no.3
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    • pp.55-75
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    • 2019
  • This study examines popular entertainers' professionalism with division of genres and cast portions. While genres can be divided into TV drama and variety show, cast portion into leading, supporting, and minor role. Entertainers' thought is categorized into their professional consciousness and their program awareness. By this division and categorization, this study grasps concretely how genres and cast portions affect entertainers' ideas. We conducted a survey on one hundred entertainers in TV dramas and variety shows and have analyzed data by using n-way ANOVA. This study also conducted in-depth interview as a research method by which we intended to enhance validity of the result. The results provide that genres and cast portions affected on entertainers' professional consciousness and their program awareness. In terms of professional consciousness, significant result was drawn on thoughts of discrimination, community, vocation, and satisfaction. In terms of their program awareness, affection, accountability, ownership, and anxiety consciousness were significant. With this result, this study provides implications both theoretical aspect and practical aspect. On theoretical aspect, this study broadens celebrity studies beyond star studies, and attempts to categorize entertainers theoretically. On practical aspect, it provides reconsideration on broadcasting condition, and suggests solving the problem of gap among entertainers.