• 제목/요약/키워드: Diversification of material

검색결과 82건 처리시간 0.024초

기능성 미장 모르타르의 현장 적용을 위한 재료별 기초 물성에 관한 평가 (Evaluation of the Basic Properties of Materials for Application of Functional Plaster Mortar)

  • 조도영;김규용;미야우치 히로유키
    • 한국건축시공학회지
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    • 제12권2호
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    • pp.152-160
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    • 2012
  • 건축공사의 선진화는 시공기술과 함께 재료의 성능향상이 동반되어야 한다. 특히 습식공사의 경우 인력에 의한 의존도가 높고, 재료 사용의 다양화가 미진한 대표적인 공정이라 할 수 있다. 이와 같은 마감 모르타르 공사에서 품질 및 시공의 선진화를 위한 다양한 모르타르 재료에 대한 물리적 특성 시험을 통하여 비교·확인함으로 향후 습식 미장공사의 다양한 재료 적용과 기계화 시공을 넘어 친환경 기능성 재료의 사용까지 발전될 수 있도록 제안해 보았다. 특히 공장생산 제품인 건조시멘트 모르타르 제품을 기준으로 기계화 시공이 가능한 수지플라스터와 친환경 석고플라스터의 사용 확대를 위한 각 재료의 품질 특성에 관한 연구를 통해 마감 모르타르 공사의 다양화와 선진화 방향을 제시하였다. 그 결과 압축강도의 경우 시멘트를 기본으로 하는 재료에서는 초기 양생조건이 품질 확보에 가장 중요한 관리 항목임을 다시 한번 확인할 수 있었으며, 마감 모르타르의 작업 후 균열 안정성에 영향을 주는 길이변화의 경우 석고플라스터가 가장 우수한 결과를 나타냈으며, 최종 응결이 빠르게 나타남으로 후속 공정을 보다 빨리 진행할 수 있어 공기단축에도 기여할 수 있을 것으로 판단된다.

Study on Design Education Plan Using Microcontroller Board Prototyping Tool

  • Nam, Wonsuk
    • International Journal of Contents
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    • 제14권3호
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    • pp.61-68
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    • 2018
  • Unlike in the past, where the expression of the form was given a priority, with the widening of the scopes of the designs, the proportion of design education institution curricula targeting user experience and the application of technology is continually and gradually increasing. Open source microcontroller boards such as Arduino have initiated attracting attention as a countermeasure against these changes. These prototyping tools have many advantages for the diversification of expression and design verification in the design field and therefore have a high likelihood of being introduced into many design education institutes; however, the tools act as high entry barriers for design students who lack engineering knowledge. Although various educational content and tools have been developed to address the issue of barrier, existing solutions remain insufficient as alternatives for the purpose of activation. In this study, we investigated the present state of related education content and conducted a pilot workshop using a prototype microcontroller board with simplified coding. We intend to use the results of this investigation to develop study material for design education. We started by conducting a survey regarding the pre-university education situation. It was observed that engineering education opportunities are insufficient and the problem of mutual application between educations due to course-based education was not realized. We also analyzed the characteristics of simplified training tools using the microcontroller to establish a direction for educational design and conducted a pilot workshop using the microcontroller toolkit with a simplified coding process based on this content. Students who lack a basic knowledge of engineering technology received instruction, and after completing minimum preliminary training, they proceeded to practical exercises that involved utilizing the toolkit. Through this process, we identified the need for a simple-type microcontroller board with low-complexity for use in educating students majoring in design. We also identified some obstacles that serve as barriers to entry of utilizing microcontroller board. Based on these results, we propose several functional requirements and teaching guidelines for prototyping toolkits for design education.

농업부산물 사료화 이용 연구 (Studies on Feed Resources of Non-Conventional Agriculture Roughage)

  • 김원호;서성;신동은;박근제;최기준;김기용
    • 한국초지조사료학회지
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    • 제21권3호
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    • pp.169-174
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    • 2001
  • This study was conducted to investigate the effects of feed resources and collection system of nonconventional agricultural roughages, and reduction of environment pollution by turning non-conventional agricultural roughages to feed resources and diversification of feed supply. And a series of experiment were conducted to determine the effect of moisture control material on quality of sweet potato stalk, peanut stalk, barley straw, the experiments were conducted at Grassland and Forage Crops Division, National Livestock Research Institute, RDA, Suwon in 1999 and 2000. The results obtained from these experiments are summarized as follows; Acid detergent fiber(ADF), neutral detergent fiber(NDF) and total digestible nutrient(TDN) of sweet potato were 38.8, 50.7 and 58.2% in the control silage, but that of rice straw added silage for moisture control were decreased to 41.5, 50.8 and 56.1%. ADF, NDF, CP(crude protein) and TDN of peanut stalk were 42.2, 49.6, 10.5 and 55.6% on the rice straw added silage for moisture control, and there were not affected by barely straw added silage for moisture control. And ADF, NDF and TDN content of barely straw increased 42.8, 65.8 and 55.1% on the water+inoculants treated silage. The results of this study indicate that non-conventional agricultural roughages to feed resources should be make for silage at silo after dry matter percentage(ab0ut 35%) control. Also, rice straw added silage for moisture control will improve the silage fermentation and conservation. (Key words : Feed resources, Non-conventional agriculture, Fermentation, Inoculant, Rice straw)

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현대 구조적 패션디자인에 나타난 구조미의 표현방식에 대한 연구 - 산티아고 칼라뜨라바의 건축특성을 중심으로 - (A study on expression methods for structural aesthetics in modern fashion design - Focus on the architectural characteristics of Santiago Calatrava -)

  • 이연지;엄소희
    • 복식문화연구
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    • 제23권5호
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    • pp.737-754
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    • 2015
  • The structural aesthetics of architecture are becoming an inspirational source for many fashion designers and have been reborn in structural fashion. This study planned to analyze the method of expression of structural aesthetics expressed in modern structural fashion design and the construction method to maximize such an effect on the basis of the construction characteristic of Santiago Calatrava as the representative architect of the structural aesthetic. According to the study, the structural aesthetics expressed in modern structural fashion design are as follows: 1) The symbolical formative aesthetic expressed by symbolical inference and analyzation; 2) the dynamic beauty of physic expressed by visual emphasis and dynamics; and 3) the asymmetric beauty of symmetry expressed by metastasis toward the boundary between balance and imbalance. In addition, to maximize structural aesthetics, we used repetition and a progressive technique based on rhythm, asymmetry, and incision-based variances, such as balance, polygon flux, and inference, and analyzation-based distortion as the structuring principle. The following expression methods for maximizing structural aesthetics were found: 1) symbolical and structural exaggeration of appearance; 2) detail technique expansion and material property diversification; and 3) the three-dimensional transformation of structure and shell expression. Structural fashion design was found to have maximized structural aesthetics by using such expression methods to secure artistic esthetics, destroy existing shapes and patterns, and create unique shapes.

민간방범기구의 범죄예방 역할과 한계 (Crime prevention role and limitations of private security organizations)

  • 공배완
    • 융합보안논문지
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    • 제12권2호
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    • pp.33-41
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    • 2012
  • 범죄는 예방이 중요하게 강조되고 있다. 범죄행위 자체는 종류에 따라 차이는 있지만 많은 물적 인적 피해를 동반하기 때문에 시민생활의 안전을 위협하고 있다. 전통적인 방범활동은 경찰의 공권력에 의해 이루어져 왔으나 범죄의 다양화, 광역화, 조직화, 전문화, 흉폭화는 경찰의 방범기능을 훨씬 능가하여 발생되고 있다. 민간방범기구는 경찰영역의 보완적 관계에서 지역을 거점으로 활동하고 있으며 영리성을 목적으로 하는 경우도 있으나 많은 단체는 자생적이며 자율적이고 봉사적 성격으로 시민생활의 안전울타리로서 역할을 하고 있다. 그러나 이들 단체들의 역할에 걸 맞는 사회적 후원과 제도적 지원이 미흡하여 실질적이고 효율적인 방범활동의 효과를 거두지 못하고 있다. 법의 개정이나 역할의 중복성에 대한 기구의 정비, 또는 체계적인 조직망을 갖추기 위한 일련의 노력과 기능적 활용 등이 요망되고 있다.

베이징지역 레스토랑 공간구성요소에 나타난 중국 전통성 표현 특성 연구 (The Characteristics of Chinese Traditionality Expression in View of Spatial Elements at Restaurants in Beijing Area)

  • 원단단;오혜경
    • 한국실내디자인학회논문집
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    • 제25권1호
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    • pp.163-171
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    • 2016
  • The objectives of this study is to analyze the characteristics of Chinese traditionality expression at restaurants in Beijing area. 12 restaurants were selected and visited for the investigation research. The results were as follows. First, traditional reproduction was found mainly manifested through the reproduction of traditional ornaments, in particular, the facade and interior element ornaments. Second, Traditional transformation was mainly manifested in replacement material while changing the shape slightly, or to stretch or shorten prototype shape and other negative deformation methods which did not largely out of the scope of traditional reproduction. Third, Traditional reinterpretation was expressed by abstract, symbol or metaphor on designs, usually people can not directly recognize the traditional archetype. When compare with traditional reproduction or traditional transformation, traditional reinterpretation was relatively fewer, however, in this study the traditional reinterpretation and traditional transformation have same numerical result. Reinterpretation as a positive performance method of traditional modernized, it was encouraging the phenomenon, especially in the ceiling design. Chinese traditional cloud patterns have been three-dimensional and diversification of use. And in the wall design, traditional elements have been extremely simplistic or adopted a wide variety of traditional elements, it may be preferred in diversity. In addition, furniture was tinge traditional elements in modern form, lighting was added symbolize color or picture on the traditional lighting which shape was simplified to emphasize space's traditional. But the facade, sign board, floor, and window element seems the range of variation was not wild, promote more use the positive traditional reinterpretation method.

미닝아웃 시대의 비건 패션 브랜드 활성화 전략 연구 - 인스타그램 해시태그 분석을 중심으로 - (A Study on the Strategies for Activating the Vegan Fashion Brand in the Meaning Out - Based on an Instagram Hashtag Analysis -)

  • 정경희;배수정
    • 패션비즈니스
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    • 제27권3호
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    • pp.132-149
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    • 2023
  • This study aims to analyze Instagram hashtags based on big data to investigate changes in consumer trends and perceptions of vegan fashion, and to derive strategies for revitalizing vegan fashion brands based on derived results. Among social media, Instagram was selected as a collection channel, and Instagram hashtags for 'Vegan Fashion' were collected from July 1, 2021 to December 31, 2021. After conducting semantic network analysis with the Ucinet 6 program based on the collected data, the CONCOR analysis on vegan fashion showed the following four clusters: 'Veganism practiced with fashion', 'Bag type of vegan fashion brand', 'Sharing vegan fashion', and 'Diversification of eco-friendly products'. Analysis results showed that the Instagram hashtag for vegan fashion confirmed the MZ generation's increased interest in vegan fashion and their thoughts to recommend and share frequently used items or brand products to people around them. CONCOR analysis of vegan fashion brands showed the following four groups: 'Differentiating the material of vegan bags', 'Eco-friendly products of vegan fashion brands', 'Interest in vegan shoes', and 'Donation campaign of vegan fashion brands'. CONCOR analysis on Meaningout showed the following four clusters: 'MZ Generation's Meaningout Start-up', 'Recommendation Platform for Skin Products', 'Value Consumption Trend for Eco-friendly Clothing', and 'Interest in Eco-friendly Packaging'. The results of this study on vegan fashion, a practical eco-friendly movement that can require changes in social responsibility and perception as issues that directly affect animals, the environment, and humans, are expected to provide basic data to help domestic vegan fashion brands develop marketing strategies.

제 7차 교육과정에 의한 초등학교 과학 교과서의 STS 내용 분석 (An Analysis of STS Content in the Elementary School Science Textbooks Developed Under the 7th National Curriculum)

  • 고한중;전경문;노태희
    • 한국초등과학교육학회지:초등과학교육
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    • 제21권2호
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    • pp.289-296
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    • 2002
  • 본 연구의 목적은 제 7차 교육과정에 의한 초등학교 과학 교과서에서 STS 내용을 분석하는 것이다. 연구의 주요 결과는 다음과 같다: (1) STS 내용의 포함 비율은 쪽수의 측면에서는 26%, 수업 시수의 측면에서는 40%이었다. '에너지'와 '물질' 영역에서의 비율이 높고 학년별 비교에서는 5학년 교과서에 포함된 내용이 상대적으로 적었다. (2) 대부분의 STS 주제는 기술이나 사회보다는 과학과 관련 있었다. (3) STS 내용이 한 시간 수업의 전체 과정에서 사용되는 경우도 많았다. (4) 대부분의 활동이 '그룹활동'과 '실험.관찰'에 해당하였고 '역할놀이, '현장견학', '인터뷰' 등의 활동은 거의 없었다. 이러한 결과는 개정된 교과서가 최근의 STS 교육사조를 잘 반영한다는 것을 의미한다. 그러나 STS 주제나 활동유형을 보다 다양화시키는 등 일부 측면에서의 개선이 요구됨을 시사한다.

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U-City 활성화를 위한 유비쿼터스도시의 건설 등에 관한 법률의 개정방향 (A Study on the Direction of Legal System Improvement for Ubiquitous City Activation)

  • 장환영;사공호상;이재용
    • Spatial Information Research
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    • 제23권4호
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    • pp.67-78
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    • 2015
  • 유비쿼터스도시의 건설 등에 관한 법률은 2010년까지 신도시 지역에 활발히 추진된 U-City 사업의 제도적 근간으로 작용하여 왔다. 그러나 최근 기성시가지 재활성화, 도시재생 중심으로 국가의 도시정책이 변화됨에 따라 신도시 중심의 절차법적 성격이 강한 U-City법 개정에 관한 요구가 증대되고 있다. 이에 본 연구에서는 국가 도시정책의 변화와 U-City를 둘러싼 여건변화를 감안하여 U-City법 개정방향을 U-City 사업다양화, U-City 관리운영 강화, U-City 사업지원으로 설정하고 그에 따른 세부 추진방안을 제시하였다. 본 연구는 국가 도시정책 흐름 및 수요를 반영함에 있어 실무적 관점에서 현행 U-City법이 가지는 문제점을 살피고 그 개선방안을 제시하는데 그 목적이 있다. 본 연구의 결과는 지속적인 U-City 발전 및 확산을 법제도적으로 지원하기 위한 기초자료로 활용될 수 있을 것으로 기대된다.

천연 인조 토끼털의 주관적 평가 및 물리적 성질에 관한 연구 (A Study on the Subjective Evaluation and Physical Properties of Natural/Artificial Rabbit Hairs)

  • 이선아;김종준
    • 패션비즈니스
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    • 제21권4호
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    • pp.144-158
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    • 2017
  • Fur garment has long been the conventional symbol for luxury, or conspicuous consumption. However, as fashion items began to diversify as part of overall fashion trend, fur items are now more about individual taste and style than just lavishness. Synthetic fur is especially emerging as a new promising fashion material, with a touch almost like natural fur at an affordable price. Along with the emergence of 'Vegan Fashion' trend, synthetic fur is establishing itself as a popular fashion textile. This study is an attempt to investigate subjective evaluation and physical properties of natural and synthetic furs, whose results will further serve as basic data in developing synthetic fur materials. Sensory and emotional evaluations are carried out on natural and artificial furs. For analysis, factors such as weight, thickness, air permeability, gloss and compressibility were surveyed to observe how they influence the physical properties. According to the subjective evaluation, natural and artificial fur samples do not differ in conspicuous ways in appearance. Experiments on physical properties, specifically warm/cool touch experiment, show that natural fur has a slightly higher warm sensation than artificial fur. Luster analysis by using a microscope revealed that there are subtle qualitative differences between natural and artificial fur. During the subjective evaluation, subjects found it hard to state distinct quantitative differences in luster. A survey as a means of assessing qualitative differences in gloss seems to be necessary to complement the evaluation. Results from this study will potentially serve as resources for diversification of fashion product designs using synthetic fur.