• 제목/요약/키워드: item characteristics

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The Evaluation Model for Natural Resource Conservation Areas - Focused on Site Selection for the National Trust - (자연자원 보전지역의 평가모형 - 내셔널 트러스트 후보지 선정을 중심으로 -)

  • 유주한;정성관
    • Journal of the Korean Institute of Landscape Architecture
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    • 제30권2호
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    • pp.39-49
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    • 2002
  • The purpose of this study is to propose an objective and rational methodology for the selection of proposed sites far the National Trust(NT), which is the new alterative proposal far the conservation of natural environments destroyed by injudicious land development and economic growth. That is to enforce many analysis for the effective estimation of rare ecological and landscape resources and to propose a model based on estimation and united indicators. Using the estimative model, we apply it to the selection of the proposed site in micro scale and simultaneously offer the basic methodology of effective and systematic land conservation in macro scale. The results of this study are as follows: 1) The results of analysis for the reliability of estimative items and indicators, presented no problem in that the coefficient of reliability was over 0.7. 2) The correlation measure of the estimative indicator indicated that 'succession'and 'regenerating restorability' were highly correlative in the item of plants. Another three items showed a tendency to be alike. 3) The results of factor analysis on the characteristics of indicators, classified plants into four categories including a stable factor. The item of animals was classified as a stable and rare factor. The item of landscape was classified as a physical and mental factor and the environment as a pollutional and conditional factor. 4) The model of estimation created through factor analysis was valid for the approval of the regression model because significant probability was 0.00. When we consider the NT proposed site as a complex body that is composed of diverse natural and manmade resources, certainly the synthetic methodology of estimation is needed. If these studies are carried out, NT sites will be selected more rationally and effectively than at present. Consequently, they have the potential to play a core role of natural ecosystem conservation in Korea.

A comparative study on electronical engineering class in KDC and DDC (KDC와 DDC의 전자공학분야 비교연구)

  • 심의순
    • Journal of Korean Library and Information Science Society
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    • 제15권
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    • pp.179-205
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    • 1988
  • The purpose of this research is to analyze the differences between electronical engineering class in KDC3 and electronical engineering class in DDC 19. The results of the study can be summarized as follows ; 1. The characteristics of the classification items in classification schemes of the electronical engineering fields is that KDC is classified by the vacuum tubes, electron tubes, special tubes, computers etc and DDC is classified by the microwave electronics, short-and long-wave electronics, X-ray and gamma-ray electronics, computers etc. 2. There is a blank in KDC and there are three blanks in DDC of the electronical engineering fields, but the total classification items number is much more in DDC than in KDC. This means that DDC is more classified than in the special classification items. 3. Classification items over 70% in the total classification items of computer fields in KDC, are classified a classification items of the short-and long-wave electronics in DDC. 4. There is a blank of computer fields in KDC and there are three blanks of computer fields in DDC, but the total classification items are many eighteen items. This means that DDC is more classified than KDC. 5. The sections of computers in DDC were established the 621.38195 classification item and the subsection of analogue computers in DDC were established the 621.381957 classification item and the subsection of digital computer in DDC were established the 621.381958 classification item. As we have seen, because of the development in technology and the subdivision of knowledge, the number of items is increased, and the terminology also become simplified and specified in the field of electronic engineering in KDC and DDC.

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Subjective Symptoms in Fatigue in Hospital Nurses (병원 근무 간호사가 자각하는 피로)

  • 김신정;성명숙
    • Journal of Korean Academy of Nursing
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    • 제28권4호
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    • pp.908-919
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    • 1998
  • The purpose of this study was to get some basic data for health care for working women, especially or hospital nurses. The number of subjects was 796 nurses from one general hospital and four private educational hospitals. The data were collected from February to April, 1988 using the questionnaire "Symptom Table on Fatigue Perception" designed by the Research Committee of Industrial Fatigue in Hygienic Association of Japan Industry. The collected data were analyzed using means and standard deviations for the subjective symptoms of fatigue and each item as an independent variable was analyzed by T-test and ANOVA test. The results are as follows 1) The mean score for degree of fatigue was 1.89 and the degree of fatigue for physical symptoms had highest score of 2.04, the next was psychological symptoms at 1.89, and neuro -sensory symptoms were the lowest at 1.74. Among the fatigue symptoms, the item scored most frequently was "Legs feel heavy" with a mean score of 2.40 and the least frequent item was "My hand and foot trembled" with a mean score of 1.40. 2) With the respect to the general characteristics of subjects, there were statistically significant difference according to age (F=17.039, p=.000), state of marriage(t=5.381, p=.000) presence of children(t=5.134, p=.000), clinical experience (F=16.663, p= .000), present position(F=18.204, p=.000), working place(F=12.598, p=.000), duty time(F=9.068, p=.000), monthly wages(F=7.361, p=.000). satisfaction about the pay and treatment at work(t=-5.511, p=.000), relation the doctors(t=-4.593, p=.000) the doctors(t=-4.593, p=.000)

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An Experimental Study on Combustion Characteristics of Aluminum Composite Panels for Flame Retardant and General Materials (난연소재와 일반소재 알루미늄복합패널의 연소특성 비교에 관한 실험적 연구)

  • Min, Se-Hong;Yun, Jung-Eun;Kim, Mi-Suk
    • Fire Science and Engineering
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    • 제26권2호
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    • pp.105-111
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    • 2012
  • In this research, aluminum composite panels of the general materials and fire retardant materials as building claddings make researches about fire performance comparison analysis. Test methods of the small and medium cone calorimeter experiments and SBI (Single Burning Item) experiments was applied to the determination. As a result, in the experiments peak heat release rate cone calorimeter the general aluminum composite panel $1,293kW/m^2$ ($75kW/m^2$), flame-retardant aluminum composite panel $70kW/m^2$ ($75kW/m^2$) was measured. In the SBI experiments fire growth rate the general fire aluminum composite panel is approximately 743 W/s and the flame-retardant aluminum composite panel is approximately 97 W/s of the value were measured. Thus, a standards enactment are urgently required in this case it is used as building claddings of the aluminum composite panel by fire risk assessment.

Analysis of Scientific Item Networks from Science and Biology Textbooks (고등학교 과학 및 생물교과서 과학용어 네트워크 분석)

  • Park, Byeol-Na;Lee, Yoon-Kyeong;Ku, Ja-Eul;Hong, Young-Soo;Kim, Hak-Yong
    • The Journal of the Korea Contents Association
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    • 제10권5호
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    • pp.427-435
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    • 2010
  • We extracted core terms by constructing scientific item networks from textbooks, analyzing their structures, and investigating the connected information and their relationships. For this research, we chose three high-school textbooks from different publishers for each three subjects, i.e, Science, Biology I and Biology II, to construct networks by linking scientific items in each sentence, where used items were regarded as nodes. Scientific item networks from all textbooks showed scare-free character. When core networks were established by applying k-core algorithm which is one of generally used methods for removing lesser weighted nodes and links from complex network, they showed the modular structure. Science textbooks formed four main modules of physics, chemistry, biology and earth science, while Biology I and Biology II textbooks revealed core networks composed of more detailed specific items in each field. These findings demonstrate the structural characteristics of networks in textbooks, and suggest core scientific items helpful for students' understanding of concept in Science and Biology.

A comparison in the evidence-based practice(EBP) awareness of physical therapists versus occupational therapists (물리·작업치료사의 근거중심치료 인식도 차이)

  • Ko, Hyeong-Jeong;Yang, Kyeong-Ok;Oh, Myung-Hwa;Kim, Jeong-Ja
    • Journal of Korean Clinical Health Science
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    • 제5권4호
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    • pp.1009-1014
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    • 2017
  • Purpose. This study compared the awareness of the evidence-based practice(EBP) in 100 physical and occupational therapists. Methods. A questionnaire on awareness was conducted to examine the attitude toward EBP, the educational experience of EBP, and the performance ability of EBP. A questionnaire consisted of items on the general characteristics, the attitude toward EBP, the educational experience of EBP, and the performance ability of EBP of the subjects. Data analysis was made by IBM SPSS Statistics Ver. 20. The EBP awareness was examined by the independent t-test. Results. For the attitude toward EBP, there was a statistically significant difference in the item of 'Therapists should judge whether they apply study results to individual patient. For the educational experience of EBP, there was no statistically significant difference in all items. For the performance ability of EBP, there was a statistically significant difference in the item about the ability to understand patient's desire for treatment and treatment preference and the item about the ability to determine appropriate treatment process in cooperation with patients. Conclusions. Both two groups showed very low results in the attitude toward EBP, the educational experience of EBP, and the performance ability of EBP. Therefore, it is necessary to enhance EBP education in undergraduate programs and the clinical field.

A Study on Latest Trend of Collaboration Appearing in Fashion Industry: Focused on Cases in 2012-2013 (패션산업에 나타난 콜라보레이션 최신 경향 연구: 2012-2013년 사례를 중심으로)

  • Park, Yuri;Cho, Kyeongsook
    • Journal of Fashion Business
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    • 제18권2호
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    • pp.95-112
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    • 2014
  • This study analyzed the type and item of collaboration, national form and purpose_of collaboration in both the domestic and foreign fashion industries in oder to study the trend of collaboration that has appeared in a the field of the recent fashion industry. The analysis focused on 221 collaboration cases from designers in the domestic and foreign fashion industries during the period of January 2012 to December 2013. The cases were collected and analyzed focusing on publications related to newspapers on fashion, internet articles on fashion information sites etc. According to the results of the study, the characteristics of collaboration shown in the recent fashion industry are as follows. First, it can be observed that a portion of collaboration in the two different industries was very high. Second, through the high portion of cases where collaboration between foreign companies was made, it could be found that the world fashion market is enormous: moreover, domestic brands tended to borrow foreign brand images. Third, it was known that fashion companies are very interested in establishing a positive company image and sharing feeling with consumers by implementing collaboration in oder to appeal to consumers' emotions. Therefore, it shoud be done an effective collaboration implement for the development of fashion industry that an understanding of partner, a study of fashion image through development item, an established image foundation of domestic brand, a correct analysis for reflecting artistic image, an effective collaboration implement for the development of fashion industry.

A Survey Study on Occurance Rate, Knowledge and Self-care Behavior of diabetes for the Elderly who are Attending a Villa House for the Aged. (서울시 일부지역 노인정 노인의 당뇨병 출현정도와 당뇨병에 대한 지식 및 질병관리 상태에 관한 연구)

  • Ro Kook Hee
    • Journal of Korean Public Health Nursing
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    • 제1권1호
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    • pp.17-31
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    • 1987
  • This study was carried out for the age 60years over who are attending a villa house for the aged during day time. The purpose of this study was to measure occurance rate of Diabetes by self cognitiveness about their disease of Diabetes; by result of urine test tape test and a questionaire study and self-care behavior about Diabetes. The results of the study are summarized as follow: 1. General Characteristics of the suryeyed. The population studied consisted of 143 males and 256 females comprising $73.9\%$ of the total population registered at the elderly villa house at the time of the study. The mean age group of the study was 70-79 years; educational level $77.2\%$ was below than primary education. 2. The results of Diabetes study. The number of cases who were self-recognized about their Diabetes were 19; 8 males and 11 females. The number of urine sugar positive cases was 35; 19 males and 16 females. The consistency rate of positive urine sugar test was $93.5\%$ An average degree of the results of knowledge test about Diabetes was 1. 4 point. When the correct 1 item was given 1 point for the 6 item of questions. Among 19 cases of self-recognized disease group an average degree of the knowledge test results was 2. 3 point and among the 35 cases of the urine test positive group an average degree of the knowledge test results was 1. 7 point. The average degree of self -care behavior about Diabetes was 1. 6 point when measued 3 point scale on the self-care behavior for the 7 item of questions.

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A Method for Recommending Learning Contents Using Similarity and Difficulty (유사도와 난이도를 이용한 학습 콘텐츠 추천 방법)

  • Park, Jae -Wook;Lee, Yong-Kyu
    • Journal of the Korea Society of Computer and Information
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    • 제16권7호
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    • pp.127-135
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    • 2011
  • It is required that an e-learning system has a content recommendation component which helps a learner choose an item. In order to predict items concerning learner's interest, collaborative filtering and content-based filtering methods have been most widely used. The methods recommend items for a learner based on other learner's interests without considering the knowledge level of the learner. So, the effectiveness of the recommendation can be reduced when the number of overall users are relatively small. Also, it is not easy to recommend a newly added item. In order to address the problem, we propose a content recommendation method based on the similarity and the difficulty of an item. By using a recommendation function that reflects both characteristics of items, a higher-level leaner can choose more difficult but less similar items, while a lower-level learner can select less difficult but more similar items, Thus, a learner can be presented items according to his or her level of achievement, which is irrelevant to other learner's interest.

A Hybrid Recommendation Method based on Attributes of Items and Ratings (항목 속성과 평가 정보를 이용한 혼합 추천 방법)

  • Kim Byeong Man;Li Qing
    • Journal of KIISE:Software and Applications
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    • 제31권12호
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    • pp.1672-1683
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    • 2004
  • Recommender system is a kind of web intelligence techniques to make a daily information filtering for people. Researchers have developed collaborative recommenders (social recommenders), content-based recommenders, and some hybrid systems. In this paper, we introduce a new hybrid recommender method - ICHM where clustering techniques have been applied to the item-based collaborative filtering framework. It provides a way to integrate the content information into the collaborative filtering, which contributes to not only reducing the sparsity of data set but also solving the cold start problem. Extensive experiments have been conducted on MovieLense data to analyze the characteristics of our technique. The results show that our approach contributes to the improvement of prediction quality of the item-based collaborative filtering, especially for the cold start problem.