• Title/Summary/Keyword: regional materials

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A Survey of Attitudes toward to, Values and Expectation of Environmental Education of korean students and Teachers (초.중등 학생 및 교사의 환경교육에 관한 의식 조사)

  • 최돈형
    • Hwankyungkyoyuk
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    • v.2 no.1
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    • pp.5-33
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    • 1991
  • The purpose of the study was to investigate attitudes toward to, values and expectations of environmental education of Korean students and teachers and to provide basic data and reference materials needed to development of environmental education curricula for primary and secondary schools. A review of the related literature, a series of conferences with teachers and specialists in environmental education and environmental sciences. and questionnaire survey were methods employed in this study. Survey question were developed to explore attitude and responses of primary and secondary school students and teachers on various types of issues and problems of environmental education at personal level as well as on their future prospects attitudes values and expectations with which had been dealt in this study were categorized into personal feeling on environmental issues and problems at both national and regional levels issues and problems of current environmental education pre service and in service training of teachers for environmental education instruction and so on. The sample population for the survey was selected by using the stratified cluster and random sampling techniques with respect to regional area, school level, sex and grade, The subjects used in this study were 1,633 students and 385 teachers of primary and secondary schools across the country. The results of the survey were summed up and recommendations to be considered in the revision of sixth national curricula for primary and secondary schools were also suggested.

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Development of Coastal Sanddunes at Kimnyong-Wolchung Beach in Jejudo (제주 김녕-월정 사구의 발달과정에 관하여)

  • Park, Kyeong;Son, Ill;Chang, Eun-Mi
    • Journal of the Korean association of regional geographers
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    • v.10 no.4
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    • pp.851-864
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    • 2004
  • A coastal dune field, located at Kimnyong-Wolchung beach in Jejudo, Korea, extends alongshore for about 4 km, with dunes extending inland about 6 km. Detailed geomorphological analysis of the area was carried out by using areal photography and Landsat images. Samples were collected across two transects, and physical and chemical properties are analyzed to detect the variation of both properties depending on distance form the beach. Paleosol layers found during the field trip suggest that dune emplacement is episodic. Radiocarbon dates from nearby Hyupjae beach indicate that dunes have been formed during the late Holocene by the disturbance of calcareous materials.

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Reactive Extrusion of Starch-g-Polyacrylonitrile in the Preparation of Absorbent Materials

  • Yoon, Kee-Jong;Carr, M.E.;Bagley, E.B.
    • Proceedings of the Korean Fiber Society Conference
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    • 1990.06b
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    • pp.8-8
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    • 1990
  • A new method for the graft polymerization of acrylonitrile onto starch is presented. Graft polymerization of acrylonitrile onto starch and the subsequent hydrolysis in sodium hydroxide solution to prepare absorbents is well known. This process has been utilized to produce the commercial product, Super Slurper. In a typical batch process, ~5% starch in water mixture is gelatinized at $95^{\circ}C$ under stirring for 1 hour then cooled to room temperature. The graft polymerization itself is carried out for approximately 2 hours at $25~30^{\circ}C$ on the gelatinized starch by eerie ion initiation. In this study, graft polymerization of acrylonitrile onto starch via a reactive extrusion process which is a continuous, efficient process is described. Initial concentration of starch in water is 35% and the reaction temperatures are between $50~80^{\circ}C$. However, the most significant difference in the reactive extrusion process is the short time in which the graft polymerization takes place. Preliminary results on the properties of graft polymerization products obtained from the reactive extrusion process are compared to those obtained from the batch process as well as the absorbency of the hydrolyzed samples. Absorbent material has also been prepared by sequential grafting and saponification in the extruder followed by a 2 hour heat treatment of the extrudate in an air circulated oven at $100^{\circ}C$.

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Emergy Evaluation of Resource Values for Rice Paddy Production in South Korea (에머지 분석을 통한 논벼 생산의 자원적 가치 평가)

  • Lee, Jimin;Kim, Taegon;Suh, Kyo
    • Journal of Korean Society of Rural Planning
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    • v.20 no.4
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    • pp.35-43
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    • 2014
  • The purpose of this study is to analyze emergy flows of rice for evaluating the value of rice production and sustainability. Emergy analysis evaluates the sustainability of systems or processes considering all the inputs to make a product or a sevice. In this study, we analyzed the emergy flows and indices of rice productionand compared the regional emergy values using statisticcal analysis: input materials, hours per unit area(10a), and production costs. As the results, we found that the rates of external investment (EIR= 18.87) and environmental loading (ELR=21.7) are significantly high during the rice cultivation. However, emergy yield ratio(EYR) shows that rice is a valuable resource because EYR is 5.12 and environmental Sustainability IndexSI value is as low as 0.24 and it shows rice has low sustainability. This study also shows that Chungcheongnam-do has the highest SI value for rice production due to low environmental loading and abundant natural energy during rice cultivation. These results of rice emergy flows and sustainability assessments could provide a way of sustainable rice cultivation with decrease of environmental loading from fertilizer.

An Analysis of Teachers' Expectation and Need for Creativity and Character Education (창의·인성교육에 대한 교사들의 기대와 요구 분석)

  • Oh, Jung-Sook;Kang, Beodeul;Park, So-Young;Im, Sung-Min;Park, Jong-Un;Won, Hyo-Heon;Kim, Hak-Bum
    • Journal of Fisheries and Marine Sciences Education
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    • v.26 no.6
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    • pp.1342-1351
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    • 2014
  • The purpose of this study was to analyze qualitatively perception on creativity and character education of teachers who participated in winter training and workshop which the Southeast Regional Center for Creativity and Character Education arranged. The results are as follows. Firstly, it was shown that teachers perceived close corelation between creativity and character and competency necessary for students who will make a living for future society. Secondary, Teachers perceived that creativity and character education will benefit students in their cognitive, emotive, and affective aspects. Lastly, teachers thought that an administrative assistant and financial help such as securing classroom had to be supported so that they were able to freely conduct creativity and character education and teaching materials provided by the Regional Center for Creativity and Character Center were helpful in establishing a whole foundation when they started to conduct creativity and character education.

A Study on Kuma Kengo's Architecture Works on Circularity - Based on Connectivity with Japanese Metabolism Movement's Circularity - (쿠마 켄고 건축의 순환성에 관한 연구 - 일본 메타볼리즘 운동의 순환성과 연계를 중심으로 -)

  • Lee, Jae-Won;Lim, Ki-Taek
    • Journal of the Regional Association of Architectural Institute of Korea
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    • v.20 no.6
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    • pp.9-16
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    • 2018
  • The purpose of this research was influenced by the historical background of Japanese modern architecture by the circulation of Kuma Kengo's architectural works and he wanted to look at the values and directions he was pursuing and how they were expressed in his works. The results of the review are summarized as follows. First, metabolism was developed as a reaction of modernism in modern architecture, focusing on growth through infinite reproduction by looking at architecture and cities as organisms and by using unit space as cells. Kuma Kengo, on the other hand, argues that focusing on the possibility of decimation of unit members by sequencing the elements that make up the space smaller than the unit space is closer to an ecological architecture. Second, what Kuma Kengo says is "erase the architecture" that is naturally related to the environment and disappears when its use is exhausted. His argument is expressed in individual architectural works through 'visual erase', 'particle painting of materials' and 'independence through dependency.' Through this, Kuma Kengo's ecological architectural languages were influenced by the ecological causes of metabolism, but they differed from the perspective of seeing architectural circulation as an organism. If metabolism was intended to realize circulation with growth potential based on the module of unit space, Kuma Kengo sought to implement circulation with the extinction of the unit members of space.

A Study on the Facade Image and Emotional Response considering Geographical Language of Railway Station - focused on Metropolitan Line of Chungcheong Railway - (철도 역명의 유래를 통하여 본 파사드 이미지 및 감성반응에 관한 연구 -충청권 광역 전철화 노선을 중심으로-)

  • Kim, Taiyoung;Oh, Sungjin
    • Journal of the Regional Association of Architectural Institute of Korea
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    • v.20 no.6
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    • pp.63-70
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    • 2018
  • This study is aimed to reflect the current status survey, analysis and response of 10 railway stations using geographical names in one of 19 stations located on Gyeongbu, Honam and Chungbuk line. Most railway stations in the study have shown normal images that are close to the standard type by selecting similar building materials rather than reflecting geographical features. Aside from the shape of the traditional Korean house in Cheongju, almost all newly constructed stations tend to incorporate light gray plating material on their modern exterior to produce Family look design as a railroad station. According to a survey of the sensitivity of the station's name, Osong Station was 73.6 percent, Gyeryong Station 67.3 percent, Heukseok-ri Station was 64.5 percent, Shintan-jin 62.6 percent, and Yeonsan Station 57 percent, more than half. Therefore, the results of the five stations were presented as a calculation and proposed design release focusing on the facades of each station. Each of these stations suggested a way to express the facade design image, considering the railway operation status of Korea Railroad, the area of the station and other surroundings.

A Study on the Building Design Guideline Development Considering Photovoltaic Panel Installation (태양광 패널 설치를 고려한 건축 디자인 지침 개발 연구)

  • Moon, Chang-Ho
    • Journal of the Regional Association of Architectural Institute of Korea
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    • v.21 no.4
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    • pp.139-146
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    • 2019
  • The purpose of this study is to propose the building design guideline considering photovoltaic panel installation through the analysis of relevant guidelines from home and abroad in terms of building design and solar panel installation. Conclusions can be summarized as followings; Considerations in building design : selection of the site with high solar accessibility, avoidance of the shade from the adjacent building & trees, south facing orientation of solar panel in building design, removal of shade on the solar panel from the part of building itself, load consideration of solar panel & fixing materials, safe passage securement for solar system maintenance, and planning of piping and mechanical room for solar system. Considerations in solar panel installation : harmonizing of solar panel with surrounding environment, unity of solar panel orientation & slope, regular maintenance of solar system, (in case of flat roof installation) solar panel installation afloat over the roof, installation area within the roof floor, and lower than parapet height, (in case of sloped roof installation) solar panel installation parallel with the roof slope, ventilation space securement below the panel, installation area within the roof surface, and similar material installation in empty space.

An Experimental Study on the Bond Splitting Strength between Composite Concrete and Deformed rebar (복합콘크리트와 이형 철근간의 부착강도에 관한 실험적 연구)

  • Yoon, Seung-Joe;Ho, SeungWoung
    • Journal of the Regional Association of Architectural Institute of Korea
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    • v.21 no.3
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    • pp.87-92
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    • 2019
  • To relieve noise between floors in Korea, recent domestic and overseas studies have been developing materials that have the properties of ceramic, which is an inorganic compound, and polymer, which is an organic compound, to introduce a new function to polymer. This study conducted a bending strength experiment between re-bar and new composite concrete mixing POSS (Polyhedral Oligomeric Silses-quioxanes) nano complex on the inside of concrete, and by assembling the inside of each concrete with 3 and 4 main re-bars as an experiment to supplement various problems that occur by the expression of this strength and the distribution of the reinforcement. The number of the main re-bars. and the direction of laying the concrete were applied as the principal variables of the experiment. Upon experiment, there were no differences in the bond strength based on the location of the main re-bar, and a 2 % increase in the bond strength was shown in the specimen laid in the same direction as the main re-bar in comparison to that of the specimen laid in a different direction from the main re-bar. The experiment results displayed that the composite concrete had uniform performance based on the rapid reaction speed of POSS nano complex.

A Study on the Space Planning of Intensive Care Unit in General Hospital, China (중국 종합병원의 중환자부 영역별 소요공간 연구)

  • Lyu, Cheng;Chai, Choul Gyun
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.27 no.1
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    • pp.53-63
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    • 2021
  • Purpose: Intensive Care Unit (ICU) is an important field of inpatient treatment, in which critically ill patients have been treated intensively with advanced medical technology. The level of treatment in the intensive care unit and the modernization of related facilities are important indicators of the quality of medical care. At present, when regional public hospitals are expanding frequently, reasonable planning of ICU has become an important part of medical institutions that treat ICU. The purpose of this study is to provide basic data on the net area of each unit, which can be used in ICU building planning. Methods: The investigation and analysis of the ICU were conducted in 12 medical institutions, based on theoretical analysis based on relevant guidelines and literature, and analysis of actual space composition and net area through architectural drawings. Results: This research provides basic data, such as the location relationship with other important departments, regional division, spatial composition, the relationship between main activities and regions, the composition of facilities in the region, and the area and proportions of each region. Implications: It is expected that the results of this article will provide effective reference materials for the reasonable spatial organization and effective operation of the intensive care units of ordinary public hospitals of different sizes in the future.