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A Case Study on the Metacognition of Mathematically Gifted Elementary Students in Problem-Solving Process (초등 수학영재들이 수학문제 해결과정에서 보이는 메타인지 사례 연구)

  • Han, Sang-Wook;Song, Sang-Hun
    • Journal of Elementary Mathematics Education in Korea
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    • v.15 no.2
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    • pp.437-461
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    • 2011
  • The purpose of this study was to examine the metacognition of mathematically gifted students in the problem-solving process of the given task in a bid to give some significant suggestions on the improvement of their problem-solving skills. The given task was to count the number of regular squares at the n${\times}$n geoboard. The subjects in this study were three mathematically gifted elementary students who were respectively selected from three leading gifted education institutions in our country: a community gifted class, a gifted education institution attached to the Office of Education and a university-affiliated science gifted education institution. The students who were selected from the first, second and third institutions were hereinafter called student C, student B and student A respectively. While they received three-hour instruction, a participant observation was made by this researcher, and the instruction was videotaped. The participant observation record, videotape and their worksheets were analyzed, and they were interviewed after the instruction to make a qualitative case study. The findings of the study were as follows: First, the students made use of different generalization strategies when they solved the given problem. Second, there were specific metacognitive elements in each stage of their problem-solving process. Third, there was a mutually influential interaction among every area of metacognition in the problem-solving process. Fourth, which metacognitive components impacted on their success or failure of problem solving was ascertained.

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The Improvement of Flocculation Basin in Water Treatment Process (정수처리공정에서 플록형성지의 효율향상 연구)

  • Gang, Chang-Ho;Lee, Hyeon-Dong;Yu, Jae-O
    • Journal of Korea Water Resources Association
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    • v.34 no.3
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    • pp.231-240
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    • 2001
  • The problem of the flocculation basin was induced by installing the pilot plant using tracer test at Yang-Duck water treatment plant in Pohang cite. The flocculation basin model downscaled as 1/20 was made of acryl and evaluated hydraulically by transforming the section of the effluent in the flocculation basin. The optimum section of the effluent was suggested and applied to the plant. The efficiency of the flocculation basin according to improvement was evaluated by the particle counter which can count the number of particles each size fraction. The results of this study are as follows : First, it was desirable to make the retention time as short as possible because the flow and the index value were similar regardless of the retention time. Second, after the modification in Yang-Duck water treatment plant, the problem of destruction of floe was improved and the plant was operated satisfactorily. The hydraulic experiment with tracer test can be applied to the performance evaluation as well as improvement of facility in unit process of existing water treatment plant. Additionally, it can be used to find a design factor in the new water treatment plant.

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An Analysis on the Spatial Characteristics of Residential and Nursing Units of Large Skilled Nursing Facilities for the Elderly in City Areas (도시지역 대규모 노인전문요양시설 거주 및 간호단위의 공간구성 특성 분석)

  • Lee, Min-Ah
    • Korean Institute of Interior Design Journal
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    • v.16 no.4
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    • pp.54-61
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    • 2007
  • The purpose of this study was to investigate the spatial characteristics of residential and nursing units in large skilled nursing facilities for the elderly that were located in city areas, and to discuss the way for efficient unit care. For collecting the data, the researcher visited 6 facilities to make explorations and to interview the staff concerned. Most of the research facilities had systematic residential units that each unit basically had elderly private rooms and the spaces for small group. The number of elderly residents per unit was appropriate for the limit which was suggested by Kwon(2002), but the sizes of small group spaces were smaller than the standard limit($1.62m^{2}$ per resident). The nursing units were made up of nursing station, 2-4 residential units, spaces for large group of residents, hair dressing, nurse, living assistants, bathing, storage and etc. Some of them had problem in efficiency of space use because they did not have distinct usage. In conclusion, this study suggests that each floor has one nursing unit including 40 residents maximum and each nursing unit consists of 2-3 residential units that have 20 residents maximum per unit. In each residential unit, the furniture and spaces for efficient unit-care should be arranged, such as TV, dining table, kitchenette, bathroom, and rooms for living assistants. The hall type is better for the small group so that it has a transitional characteristic leading to the public spaces. The large group space needs to have clear usage such as conducting program differentiated from small group, and various furniture such as sofa, TV, table, and etc which encourage the elderly voluntary use.

A Study on the Job Description of Medical Record Administrator in Busan and Gyeongnam (부산·경남지역 의무기록사 직무분석)

  • Jung, Mi-Yeong;Kim, Hye-Sook;Kim, Kyeong-Na
    • The Korean Journal of Health Service Management
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    • v.6 no.4
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    • pp.61-72
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    • 2012
  • The purpose of this study was to propose how to improve and develop the college curriculum of medical record administration, satisfying requirements from hospitals having medical record administrators. For the purpose, this researcher surveyed medical record administrators serving at hospitals located in Busan, Changwon, Masan and Jinju. Finally analyzed were responses from 100 medical recorders. The frequency of searching medical records to support information use was statistically different among hospitals according to the number of sick beds(p=.041), or $3.16{\pm}1.75$ for fewer than 300 sick beds, $4.28{\pm}2.42$ for 300 to 500 and $4.86{\pm}3.18$ for more than 500. The college course that was regarded as most important by most of the surveyed medical record administrators, or 53(37.2%) was medical terminology, followed by statistics by 36 of the respondents(18.5%) and EMR, 25(12.8%) in order. To make EMR truly effective requires reforming the university curriculum of medical record administration and giving more attention and more supports to training for better computerization, realizing that medical record administrators serve as a true manager of health and medical information, not a person who just paper-based medical information. In addition to managing health and medical information, medical record administrators are expected to have more roles in the future, for example, providing high-quality clinic knowledge and medical information that are necessary for efficient hospital management and medical research to survive competition.

Southeast Asian Studies in Korea Revisited: Pluralistic Growth and Lack of Inclusiveness (한국의 동남아연구 성장과 포괄성 문제)

  • JEON, Je Seong
    • The Southeast Asian review
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    • v.28 no.4
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    • pp.1-29
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    • 2018
  • The purpose of this study is to review the Southeast Asian studies in Korea in a comprehensive way and to set a new task for our academic community. To do this, I tried to analyze the total amount and trends of scholarly achievement (thesis, journal articles, and academic books). The content is divided into research history, research accumulation, and researcher scale. The history of research dates back more than we thought and was decentralized. Research accumulation is becoming more and more pluralistic. The number of researchers from various academic fields was higher than expected. The newly discovered Southeast Asian studies of Korea suggests the task of increasing the inclusiveness of our academic community. The KASEAS (Korean Association of Southeast Asian Studies) seems to be narrow and stagnant compared to the trend of Southeast Asian studies in Korea, which is constantly growing quantitatively, academically spreading, and transcending nationality. In order to increase the inclusiveness of the KASEAS, efforts should be made to open a variety of decentralized and autonomous study groups, to invite domestic graduate students from Southeast Asia, and to spread the university's foothold as a point of contact between pluralistic disciplines.

Design research of ornaments applying the formability of gem cuts -Focusing on line formability- (보석 커팅의 조형성을 응용한 장신구 디자인 연구 -선 조형성을 중심으로-)

  • Park, Jeong-cheol
    • Journal of Digital Convergence
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    • v.19 no.3
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    • pp.303-311
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    • 2021
  • The accessories growth according to the changes in each era and of course, jewelry processing technology has also improved, but in modern times, the frequency of use of jewelry has decreased, and it has been neglected compared to crafting and metal-related technologies. The beauty of crafted jewelry still remains, there are many problems to cover many age groups due to valuable and design problems. Accordingly, this researcher intends to conduct research to inform the formative beauty and value of processed jewelry. Jewelry designby mainly applying lines during the shaping of the jewelry cutting surface. Prior to the design, a theoretical approach to the design case and jewelry processing literature, and based on this, jewelry design applied in the form of jewelry cutting. This study is expected to promote the vitalization of jewelry research, which is currently marginalized in the field of precious metals, and to develop a number of designs using jewelry.

Arabic Words Extraction and Character Recognition from Picturesque Image Macros with Enhanced VGG-16 based Model Functionality Using Neural Networks

  • Ayed Ahmad Hamdan Al-Radaideh;Mohd Shafry bin Mohd Rahim;Wad Ghaban;Majdi Bsoul;Shahid Kamal;Naveed Abbas
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.17 no.7
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    • pp.1807-1822
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    • 2023
  • Innovation and rapid increased functionality in user friendly smartphones has encouraged shutterbugs to have picturesque image macros while in work environment or during travel. Formal signboards are placed with marketing objectives and are enriched with text for attracting people. Extracting and recognition of the text from natural images is an emerging research issue and needs consideration. When compared to conventional optical character recognition (OCR), the complex background, implicit noise, lighting, and orientation of these scenic text photos make this problem more difficult. Arabic language text scene extraction and recognition adds a number of complications and difficulties. The method described in this paper uses a two-phase methodology to extract Arabic text and word boundaries awareness from scenic images with varying text orientations. The first stage uses a convolution autoencoder, and the second uses Arabic Character Segmentation (ACS), which is followed by traditional two-layer neural networks for recognition. This study presents the way that how can an Arabic training and synthetic dataset be created for exemplify the superimposed text in different scene images. For this purpose a dataset of size 10K of cropped images has been created in the detection phase wherein Arabic text was found and 127k Arabic character dataset for the recognition phase. The phase-1 labels were generated from an Arabic corpus of quotes and sentences, which consists of 15kquotes and sentences. This study ensures that Arabic Word Awareness Region Detection (AWARD) approach with high flexibility in identifying complex Arabic text scene images, such as texts that are arbitrarily oriented, curved, or deformed, is used to detect these texts. Our research after experimentations shows that the system has a 91.8% word segmentation accuracy and a 94.2% character recognition accuracy. We believe in the future that the researchers will excel in the field of image processing while treating text images to improve or reduce noise by processing scene images in any language by enhancing the functionality of VGG-16 based model using Neural Networks.

Exploratory Factor Analysis Study on the Safety Culture of Highway Management Agencies (고속도로 관리기관의 안전문화에 대한 탐색적 요인분석 연구)

  • Jeong-Soo Seo;Kyung-Ok Jeong
    • Journal of the Korea Safety Management & Science
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    • v.26 no.1
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    • pp.55-61
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    • 2024
  • In this paper, in order to study the relationship between the safety culture of highway management agencies and disaster reduction activities (BCMS), a measurement tool was identified through previous research on safety culture, and the validity of the measurement tool was confirmed through exploratory factor analysis. I want to check. The subjects of the study were workers belonging to disaster reduction activity management system certification organizations among highway management organizations. The highway management agencies are the Korea Expressway Corporation, which manages the functional continuity of national highways nationwide, and 8 of the 21 private road agencies that manage the functional continuity of the highways. The safety culture measurement tool is an indicator that measures safety culture factors, and is reorganized by the researcher based on survey items from previous studies, with management/manager safety values and attitudes, safety communication, safety education and training, and safety regulations/management system as subfactors. A total of 24 questions were comprised of the survey tool. As a result of the study, the result of exploratory factor analysis was that the safety culture scale was extracted into four factors based on theoretical grounds, and the total cumulative variance was 80.360%. When checking the questions for each factor, it was found that all the questions loaded on the factor that was originally intended to be measured. Factor 1 is management, factor 2 is safety, and factor 3 is communication., Factor 4 was named education. Number of questions: 4 management questions, 3 safety questions, communication It consisted of 4 questions and 2 education questions.

An Empirical Analysis of the Conflict Research Trend in the Field of Public Administration (행정학 분야에서의 갈등 연구경향 분석)

  • Byun, Sung-Soo;Bae, Jeong-Hwan
    • The Journal of the Korea Contents Association
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    • v.10 no.1
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    • pp.365-371
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    • 2010
  • The research purpose of this paper is to afford a base data and a research direction for the effective conflict management. For this, this article analyzed the conflict research trend in the field of public administration. According to empirical analysis, the main research results are as follows. First, a published article number go on increasing in proportion to publication year. Second, a one-research paper have showed 71.2% of all papers because of limited researcher in the field of conflict research. Third, research paper which did not receive a research expenses have showed 73.1% of all papers. Fourth, research paper that used a empirical analysis and case study have showed 80.8% of all papers in the methodology of conflict. Fifth, the research purpose that aimed to propose an alternative and practical analysis have showed 91.3% of all papers. Sixth, about the research contents, it have showed each 50.0%(administration/institution and facilities location), 80.8%(interorganization conflict), 76.0%(intergovernment, between government and public), 64.5%(with local government) in a field, a level, a party, a relation of the conflict.

Seismic Performance of Rib Plate H Beam to Column Connections (리브로 보강된 기둥-보 접합부의 내진성능 평가)

  • Kim, Sung-Yong;Shin, Chang-Hoon
    • Journal of the Korean Society of Hazard Mitigation
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    • v.6 no.1 s.20
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    • pp.9-16
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    • 2006
  • The moment resisting frame has been well-known as it had very excellent seismic performance, and it has been widely used and constructed in the design of a lot of buildings. However, the moment resisting frame system did not exert the seismic performance during the earthquake in Northridge and Kobe sufficiently, and it produced the crack or brittle fracture on the joint. this study was to ]m tests with the full-scale test subject as parameters of existence of H-beam web high tensile bolt shearing joint and reinforcement of H-flange rib. This researcher was to anticipate the decrease of number of high tensile bolts and the improvement of workability through the double shear joint by the experiment, and improve the seismic performance through the reinforcement of rib plate. In addition, this study was to prevent the brittle fracture by the stress concentration through the non scallop.