• Title/Summary/Keyword: 변별성

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A study on the white porcelain in Sangju focus on the literature data (문헌자료를 중심으로 한 상주백자 연구)

  • Kim, Jong-Tae
    • Archives of design research
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    • v.19 no.5 s.67
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    • pp.17-30
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    • 2006
  • The early Joseon Dynasty is very important period of studying about Korean history of ceramics because various kinds of porcelain were produced like celadon, brown porcelain, white porcelain, inlaid white porcelain, blue porcelain etc, $\ulcorner$sejongsilrok$\lrcorner$ $\ulcorner$Jiriji$\lrcorner$ was published and Saongwon established its branch. Moreover, there also had a sudden political change to Joseon Dynasty, so ceramic industry in Gangjin was closed and artisans in Gangjin scattered to find safer place. One of these place was Imiwueri and Chuhyunri, Joongmohyun in Sangju.(the name of the place in that times, now Modongmyun) Also, Sangju in Gyeongsangbuk-Do is one of the places where can get materials for producing white porcelain, so artisans in Gangjin could migrate to the place during change of regime to Joseon Dynasty which based on Sung Confucianism. In $\ulcorner$Tejongsilrok$\lrcorner$, it mentioned specific areas like Joongmo, Hwaryeong in Sangju, Gyeongsang-Do and we can find out about situations of ceramic production in the early 15 centuries with producing dishes for a Royal family. $\ulcorner$Sejongsilrok$\lrcorner$ $\ulcorner$Jiriji$\lrcorner$ mentioned Imiwueri and Chuhyunri and Sangju produced the half of porcelains. In $\ulcorner$Gyeongsangdojiriji$\lrcorner$, Sangju takes charge of 8 spots which is one third of ceramic production. $\ulcorner$Gyeongsangdojiriji$\lrcorner$ and $\ulcorner$Sejongsilrok$\lrcorner$ $\ulcorner$Jiriji$\lrcorner$ were published with same goals at the same year. In $\ulcorner$Gyeongsangdosokchanjiriji$\lrcorner$, there was deleted nine spots which included high, middle, low level compared with $\ulcorner$Seiongsilrok$\lrcorner$ $\ulcorner$Jiriji$\lrcorner$, and in $\ulcorner$Donggukyeojiseungram$\lrcorner$ there was entirely deleted the locations of porcelain spots and potteries.

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Development of the Somatization Rating Scale (신체화 평가 척도의 개발)

  • Koh, Kyung-Bong;Park, Joong-Kyu
    • Korean Journal of Psychosomatic Medicine
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    • v.10 no.2
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    • pp.78-91
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    • 2002
  • Objective : The purpose of this study was to develop the somatization rating scale (SRS), and then to use the scale in clinical pracitice. Methods: First, a preliminary survey was conducted for 109 healthy adults to obtain 40 response items. Second, a preliminary questionnaire was completed by 215 healthy subjects. Third, a comparison was made regarding somatization responses among 242 patients (71 with anxiety disorder. 73 with depressive disorder, 47 with somatoform disorder, and 51 with psychosomatic disorder) and 215 healthy subjects. Results : Factor analysis yielded 5 subscales : cardiorespiratory and nervous responses, somatic sensitivity, gastrointestinal responses, general somatic responses, genitourinary, eye and muscular responses. Reliability was computed by administering the SRS to 62 healthy subjects during a 2-week interval. Test-retest reliability for 5 subscales and the total score was significantly high, ranging between .86-.94. Internal consistency was computed, and Cronbach's ${\alpha}$ for 5 subscales ranged between .72-.92, and .95 for the total score. Convergent validity was computed by correlating the 5 subscales and the total score with the total score of the global assessment of recent stress (GARS) scale, the perceived stress questionnaire (PSQ), and the symptom checklist-90-revised (SCL-90-R). The correlations were all at significant levels. Discriminant validity was computed by comparing the total score and the 5 subscale scores of the patient and control groups. Significant differences were found for 5 subscales and the total score. Only the depressive disorder group was siginificantly higher than control group in all the subscale scores and total scores of SRS among 4 patient groups. In somatic sensitivity, only depressive disorder patients were significantly higher than the normal controls, whereas in general somatic subscale, depressive disorder and somatoform disorder groups were significantly higher than the normal controls. In total scores of the SRS, female subjects were significantly higher than males. Conclusion : These results indicate that the SRS is highly reliable and valid, and that it can be utilized as an effective measure for research in stress- and somatization-related fields. The depressive disorder and somatoform disorder groups showed more widespread somatization than the anxiety and psychosomatic disorder groups.

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Development of Intelligent Severity of Atopic Dermatitis Diagnosis Model using Convolutional Neural Network (합성곱 신경망(Convolutional Neural Network)을 활용한 지능형 아토피피부염 중증도 진단 모델 개발)

  • Yoon, Jae-Woong;Chun, Jae-Heon;Bang, Chul-Hwan;Park, Young-Min;Kim, Young-Joo;Oh, Sung-Min;Jung, Joon-Ho;Lee, Suk-Jun;Lee, Ji-Hyun
    • Management & Information Systems Review
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    • v.36 no.4
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    • pp.33-51
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    • 2017
  • With the advent of 'The Forth Industrial Revolution' and the growing demand for quality of life due to economic growth, needs for the quality of medical services are increasing. Artificial intelligence has been introduced in the medical field, but it is rarely used in chronic skin diseases that directly affect the quality of life. Also, atopic dermatitis, a representative disease among chronic skin diseases, has a disadvantage in that it is difficult to make an objective diagnosis of the severity of lesions. The aim of this study is to establish an intelligent severity recognition model of atopic dermatitis for improving the quality of patient's life. For this, the following steps were performed. First, image data of patients with atopic dermatitis were collected from the Catholic University of Korea Seoul Saint Mary's Hospital. Refinement and labeling were performed on the collected image data to obtain training and verification data that suitable for the objective intelligent atopic dermatitis severity recognition model. Second, learning and verification of various CNN algorithms are performed to select an image recognition algorithm that suitable for the objective intelligent atopic dermatitis severity recognition model. Experimental results showed that 'ResNet V1 101' and 'ResNet V2 50' were measured the highest performance with Erythema and Excoriation over 90% accuracy, and 'VGG-NET' was measured 89% accuracy lower than the two lesions due to lack of training data. The proposed methodology demonstrates that the image recognition algorithm has high performance not only in the field of object recognition but also in the medical field requiring expert knowledge. In addition, this study is expected to be highly applicable in the field of atopic dermatitis due to it uses image data of actual atopic dermatitis patients.

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An Influence of the Korean Wave on Chinese Tourism to South Korea (중국인의 방한관광에 대한 한류의 영향)

  • Choi, Kyung-Eun
    • Journal of the Korean Geographical Society
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    • v.42 no.4
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    • pp.526-539
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    • 2007
  • The purpose of this study is to investigate the influence of the Korean Wave on Chinese tourism to South Korea through a behavioral analysis of Chinese tourists in the general group package tours. China suppressed the needs of the Chinese people's geographical movement and imposed restrictions on information about the outside world with the use of a policy of "closure" for a long time. But since reforms and open-door policies were introduced in China, especially in the context of relaxation of control policies over Chinese outbound tourism after the mid-1990's, more and more Chinese make trips abroad including visits to South Korea. In this situation, the recent Korean Wave(especially, drama/film) describes the Korean national image by forming a bridge between fiction and reality and plays a pivotal role in broadening or reconstructing the geographical imagination of the Chinese people who have been historically isolated from the outside world. Although Chinese have imagined the Korean nationscape on the basis of geopolitical or economic factors in the past, they have currently broadened or reconstructed their geographical imagination to include socio-cultural factors related closely to the Korean way of life due to the recent Korean Wave. This newly constructed geographical imagination led by the Korean Wave functions as an important pulling factor in Chinese destination choices, affecting Chinese tourists' motivation formation and the recommendation of main attractions. The more influential the Korean Wave is on their destination choice, the more the respondents select the cultural factors in both their motivation for tourism to South Korea and their recommendations of tourism attractions to other people. Through the analysis results of both satisfaction and intention to revisit, the more influential the Korean Wave is on their destination choice, the higher is the degree of both satisfaction and intention to revisit. In other words, although Chinese tourism to South Korea is chiefly in the general group package tours, Chinese tourists who are influenced by Korean Wave on their destination choice have more attachment to(or affection for) Korea as a tourism destination. This result suggests that the Korean Wave affects qualitative change - that is, change of attitude - as well as quantitative change in Chinese demand for tourism to South Korea.

Developing National Science Assessment System:Scientific Knowledge Domain (국가 수준의 과학 지식 평가 체제 개발)

  • Kwon, Jae-Sool;Choi, Byung-Soon;Kim, Chan-Jong
    • Journal of The Korean Association For Science Education
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    • v.18 no.4
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    • pp.601-615
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    • 1998
  • Establishing and evaluating science education policies and revising and monitoring the effectiveness of science curriculum should be based upon the results of systematic and scientific research studies. Advanced nations have already been administering and developing national level science assessments for these purposes. The science assessments administered in Korea have been reported having many limitations and problems, and not succeeded in providing data for science education policy making and curriculum reform. The major purpose of the study is developing national level science knowledge assessment system in order to identify longitudinal trends of elementary and secondary school students science knowledge achievements. The research team consisted of science education experts and teachers from various school levels, decided the directions and major elements of national level science knowledge assessment with the consultation of educational evaluation experts. Item developing ability of the researchers was improved by seminars? and workshops on national assessment in advanced nations and developing skills of writing science items. Nearly 500 items were developed and revised. Pilot test was administered with 958 students at various school levels. 380 items were selected and tested with 8766 students, and the characteristics were analyzed in terms of item response theory. The target populations for national level science knowledge assessment are 5th-grade of elementary school, 2nd-grade of middle school, 1st and 2nd-grade of high school students. The proper period for the assessment is February every year. Multi-stage clustered sampling method is desirable and rotated forms are recommendable for the test format. Bridge items should be introduced to compare the results of multiple tests, and various grades. Anchor items should also be used for longitudinal interpretations of the results. The items for elementary school require low to medium abilities, for middle school and first grade of high school require medium to high abilities and for 2nd-grade of high school high abilities. The discrimination ability of the items developed is high.

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Verifying the Classification Accuracy for Korea's Standardized Classification System of Research F&E by using LDA(Linear Discriminant Analysis) (선형판별분석(LDA)기법을 적용한 국가연구시설장비 표준분류체계의 분류 정확도 검증)

  • Joung, Seokin;Sawng, Yeongwha;Jeong, Euhduck
    • Management & Information Systems Review
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    • v.39 no.1
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    • pp.35-57
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    • 2020
  • Recently, research F&E(Facilities and Equipment) have become very important as tools and means to lead the development of science and technology. The government has been continuously expanding investment budgets for R&D and research F&E, and the need for efficient operation and systematic management of research F&E built up nationwide has increased. In December 2010, The government developed and completed a standardized classification system for national research F&E. However, accuracy and trust of information classification are suspected because information is collected by a method in which a user(researcher) directly selects and registers a classification code in NTIS. Therefore, in the study, we analyzed linearly using linear discriminant analysis(LDA) and analysis of variance(ANOVA), to measure the classification accuracy for the standardized classification system(8 major-classes, 54 sub-classes, 410 small-classes) of the national research facilities and equipment established in 2010, and revised in 2015. For the analysis, we collected and used the information data(50,271 cases) cumulatively registered in NTIS(National Science and Technology Service) for the past 10 years. This is the first case of scientifically verifying the standardized classification system of the national research facilities and equipment, which is based on information of similar classification systems and a few expert reviews in the in-outside of the country. As a result of this study, the discriminant accuracy of major-classes organized hierarchically by sub-classes and small-classes was 92.2 %, which was very high. However, in post hoc verification through analysis of variance, the discrimination power of two classes out of eight major-classes was rather low. It is expected that the standardized classification system of the national research facilities and equipment will be improved through this study.

The clinical utility of K-CBCL 6-18 in diagnosing ADHD -focused on children with psychological disorders in child welfare institution- (ADHD 진단에서 K-CBCL 6-18의 임상적 유용성 -아동복지시설 심리장애 아동에의 적용-)

  • Kim, Sang A;Ha, Eun Hye
    • Journal of the Korean Society of Child Welfare
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    • no.56
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    • pp.253-281
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    • 2016
  • The purpose of this study was to verify the clinical utility of th Korea Child Behavior Checklist 16-18(K-CBCL 6-18) in diagnosing ADHD among children with psychological disorders in child welfare institutions. The participants were 509 elementary school children(309 boys and 200 girls) who lived in child welfare institutions. They were assessed using the Korean ADHD Rating Scale(K-ARS) and K-CBCL 6-18. Only five scales of the K-CBCL 6-18 related with attention were used for analysis: syndrom total, externalizing total, aggressive behavior, attention problems and DSM-oriented ADHD scales. The results were as follows. First, K-ARS and K-CBCL 6-18 had significantly positive correlations with all five scales. Second, as a result of a t-test on the ADHD and the non-ADHD groups, which were divided using K-ARS, the mean scores of ADHD group were significantly higher than the non-ADHD group for all five scales of the K-CBCL 6-18. The hit rate of all five scales of the K-CBCL 6-18 was 60 to 70 percent. The syndrom total and externalizing total scales had high sensitivity, whereas the aggressive behavior, attention problems, and the DSM-oriented ADHD scales had high specificity. In addition, all scales had high positive predictive values. Third, as the result of a t-test on the ADHD group and the emotional disorder group, there were significant difference in the mean scores of the attention problems and the DSM-oriented ADHD scales. The attention problems and the DSM-oriented ADHD scales had a similar percentage of hit rate, high specificity and low sensitivity. Especially, the DSM-oriented ADHD scale revealed higher specificity than the attention problems scale. The results of this study suggested that the five scales related to attention of the K-CBCL 6-18 are useful in diagnosing ADHD in child welfare institutions.

A Study on the Chinese Translated of Korean version Yeonhaengnok(燕行錄) of 『Sang-bong-lok』 in Korean (한역본(漢譯本) 연행록 『상봉록(桑蓬錄)』의 특징과 한역(漢譯) 양상 연구)

  • Chaung, Nae Won
    • (The)Study of the Eastern Classic
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    • no.55
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    • pp.147-172
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    • 2014
  • Kang Jae Eung translated "Sang-bong-lok" of Kang Ho Boo from Korean into Chinese. There is Yeonhaengnok(燕行錄) written in with Korean and Chinese among 500 Yeonhaengnok(燕行錄). Especially it is very rare that is translated from Korean into Chinese. Because of there aspect, it is valuable and worth studying. "Sang-bong-lok" was 3 series by origin, but now we have only 2 series. That is the original text written in Chinese by Kang Ho Boo, a Korean version by Kang Ho Boo, and Chinese translated of Korean version by his descindants Kang Jae Eung. Original text dosen't exists now undiscovered yet. Chinese version "Sang-bong-lok" is distinguished from the other Yeonhaengnok(燕行錄) and classical novel in form and contents. In formal aspect, Chinese version "Sang-bong-lok" describes an industry remarks in prologue. This industry remark describes standard and form of writing. Looking industry remark, you can find that Kang Jae Eung didn't add or subject the sentence of original text and distinguished between his own sentence and original text. This compiling system distinguishing compiler from original writter is rare enough to so that you cannot find it in other Yeonhaengnok(燕行錄). In contents, Kang Jae Eung almost transcribed Korean Yeonhaengnok(燕行錄) without subtraction and added special information to promote the view of Kang Ho Boo. After discription, Kang Jae Eung covered all information and reviewed it and added opinion to it. Kang Jae Eung's conclusion is sometimes same or different from Kang Ho Boo's. Anyway it is worthy of noticing that Kang Jae Eung wrote his opinion after Kang Ho Boo's sentence.

A Study for operation results of the comprehensive examination on tendering system in the cultural heritage repair and restoration, focusing on the cause of the decline in the winning bid rate (문화재수리 종합심사낙찰제·종합평가낙찰제 운영결과 및 낙찰률하락 원인 분석)

  • JUNG, Younghun;YUN, Hyundo
    • Korean Journal of Heritage: History & Science
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    • v.55 no.1
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    • pp.111-132
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    • 2022
  • The comprehensive examination on tendering system has been introduced to the Cultural Heritage repair and restoration field since 2016 to remedy the repair issues of South Gate in 2014. The Cultural Heritage Administration tried to attain the high performance of the cultural heritage repair and restoration works securing the proper payment for the repair and restoration works. It is high time to review the operating performance of the comprehensive examination on tendering system (hereinafter referred to as the "CEOTS"), as the system has been run for over 5 years to correspond with its original goal, i.e., "The Proper Payment in return for the High Performance of Repair and Restoration works." This study intends to analyze 114 tenders of CEOTS from 2016 to 2020. As a result of the analysis of 114 tenders, firstly, more than half of bid winners were in the top 20% of repair & restoration capacity disclosure amount list, which mostly fulfilled the goal of 'attaining high performance.' Secondly, as the winning bid rate is decreasing from 86.847% in 2017 to 85.488% in 2020, the goal of 'guarantee of a proper payment' is not achieved yet. Thirdly, the influence of Economic Evaluation section in CEOTS has been grown since the change of scoring system in CEOTS in 2019. This study identifies two reasons why the winning bid rate of CEOTS has decreased. Firstly, it is caused by the fact that 'the group that got more than 1st place' and 'the first place group' that are more than half of the total bidders have the decreasing bidding rate trend as the years go by. Secondly, the exclusion rate of 'the group that got more than 1st place' is higher than the exclusion rate of 'the group that got less than 1st place', which means the expected winning rate would be lowered. It is proposed that the revision of CEOTS code is needed, i.e. easing the strict rule concerning the exclusion rate as well as setting up the lower bidding limit to prevent the excessive decreasing winning bid rate.

Exploring Differences of Student Response Characteristics between Computer-Based and Paper-Based Tests: Based on the Results of Computer-Based NAEA and Paper-Based NAEA (컴퓨터 기반 평가와 지필평가 간 학생 응답 특성 탐색 -컴퓨터 기반 국가수준 학업성취도 평가 병행 시행 결과를 중심으로-)

  • Jongho Baek;Jaebong Lee;Jaok Ku
    • Journal of The Korean Association For Science Education
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    • v.43 no.1
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    • pp.17-28
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    • 2023
  • In line with the entry into the digital-based intelligent information society, the science curriculum emphasizes the cultivation of scientific competencies, and computer-based test (CBT) is drawing attention for assessment of competencies. CBT has advantages to develop items that have high fidelity, and to establish a feedback system by accumulating results into the database. However, it is necessary to solve the problems of improving validity of assessment results, lowering measurement efficiency, and increasing management factors. To examine students' responses to the introduction of the new assessment tools in the process of transitioning from paper-based test (PBT) to CBT, in this study, we analyzed the results of the PBT and the CBT conducted in 2021 National Assessment of Educational Achievement (NAEA). In particular, we sought to find the effects on student achievement when only the mode of assessment was changed without change of items, and the effect on student achievement when the items were composed including technology enhanced features that take advantage of CBT. This study is derived through the analysis of the results of 7,137 third-grade middle school students taking one among the three kinds of assessments, which were the PBT or two kinds of CBT. After the assessment, the percentage of correct answers and the item discriminations were collected for each group, and expert opinions on characteristics of response were collected through the expert council involving 8 science teachers with experience in NAEA. According to the results, there was no significant difference between students' achievement results in the PBT and the CBT-M, which means simple mode conversion type of CBT, so it could be explained that the mode effect did not appear. However, it was confirmed that the percentage of correct answers for the construct response items was somewhat high in the CBT, and this result was analyzed to be related to the convenience of the response. On the other hand, there were the items with a difference of more than 10%p from the correct answer rate of similar items, among the items to which technology enhanced functions were applied following the introduction of CBT. According to the analysis of response rate of options, these results could be explained that the students' level of understanding could be more closely grasped through the innovative items developed through the technology enhanced function. Based on the results, we discussed some guidance to be considered when introducing CBT and developing items through CBT, and presented implications.