• 제목/요약/키워드: technical words

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특허(特許)와 논문(論文)으로 본 텅스텐카바이드(WC) 재활용(再活用) 기술(技術) 동향(動向) (Trend on the Recycling Technologies for the used Tungsten Carbide(WC) by the Patent and Paper Analysis)

  • 정진기;이재천;박상우;강경석
    • 자원리싸이클링
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    • 제21권1호
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    • pp.82-92
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    • 2012
  • 텅스텐카바이드는 금속절단 공구, 드릴의 날, 광산공구, 군사무기 재료, 화학원료, 촉매, 내마모성재료, 제트엔진 터빈 블레이드 등 다양한 용도로 사용된다. 요즘 경제적인 측면과 효율적인의 측면에서 텅스텐카바이드 재활용 기술이 넓게 연구되었다. 이 논문에서는 텅스텐카바이드 재활용 기술에 대하여 1969년부터 2011년까지 공개/등록된 미국, 일본, 유럽, 한국의 특허와 SCI급 논문을 조사하였다. 키워드를 이용하여 조사하였고 필터링 하여 특허와 논문을 수집하여 연도별, 국가별, 기관별, 기술별로 분석하였다.

공정균형기법에 의한 실증적 연구 (A Practical Study on the Line Balancing)

  • 강경식;김대식
    • 산업경영시스템학회지
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    • 제8권11호
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    • pp.17-25
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    • 1985
  • In these days the industrial management are characterized by mass production. Mass production which is not possible without the rationalization in the process of production and the efficient scale of management needs development of technical administration. The object of this study is set up on the rationalization in the process of production. And this rationalization is a means to the aim of industrial management. So as to realize the rationalization in the process of production, we should think on plan of production and the line of balancing in processes of work. The line of balancing is considered as one of very valuable administration methods. The line of balancing that controls capacities and loads so that processes of work might balance in each other makes away with happenings of idleness and stagnation during the process of work As a natural consequence it follows (1) shortening in the period of Production, (2) more efficient, (3) removing the lots of tine and matter, (4) more efficient using in elements for production. Therefore, through the labour productivity and the efficiency of the process of production increased by these effects, the line of balancing was intended to curtail the basic cost. Though the previously said line of balancing could be applied to production, it should not be said that we can completely balance in each lines of work. In other words it is impossible that the line of balancing is completely executed in every lines of work. For that reason, we should arrange the level of balancing in lines. Nowaday, in our country, it is true that the line of balancing is hardly executed at manufacturing industries. Therefore if we execute and apply the line of balancing to manufacturing industries and the larger field as well , we could curtail the basic cost, through which we could reinforce not only the international competative power but increase the labour productivity. As a result, by these effects, we would rationalize the industrial management.

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국산(國産) 스폰지류(類)의 물성연구(物性硏究) (Study on the Physical Properties of Cellular Rubber Products)

  • 백남철;류운영;최세영
    • Elastomers and Composites
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    • 제15권3호
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    • pp.147-154
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    • 1980
  • The cellular rubber products for industrial purpose have been applied in many fields such as auto-motive parts, ship-building, machinery, sports goods, diving suit or interior housings etc. The purpose of this dissertation is to study the physical properties of celluar rubber products particulary for those elastomers such as EPDM, CR and NBR with heat resistance property, weather proofness, and oil resistance characteristics respectively, aiming at improving their quality, and renovating the manufacturing know-how which is beyond our technical power at the present time in Korea. In order to meet this requirement an ideal recipe is being shown for the three elastomers, and also a practical recipe which is easily available in terms of compounding ingredients in domestic market has set up as shown in Table 1. for the investigation of vulcanization characteristics by means of Rheometer. The optimum Mooney viscosity of compounded rubber was found to be approximately $ML_{1+4}(100^{\circ}C)$ $30\sim45$. Excess mustication makes a dispersion of ingredients worse, consequently it causes deformation of shapes and heterogenous cell distribution. In other words the articles are rejected because of its insufficient workmanship. The results of physical properties of the products are indicated in Table 3. It has shown that the quality meet requirement when tested in accordance with ASTM D572, 573 and D 395. The test results o CR/IR blends in terms of hardness, volume change by blowing, tensile strength and elongation have been shown.

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우레탄 아크릴 코팅 소재의 표면 색상 및 모폴로지가 긁힘 거동에 미치는 영향 (Effects of Surface Color and Morphology on the Mar Behaviors of Urethane-Acrylate Coatings)

  • 정원영;원종일
    • 폴리머
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    • 제38권1호
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    • pp.1-8
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    • 2014
  • 표면 색상과 모폴로지가 우레탄-아크릴 코팅 소재 표면의 긁힘 거동에 미치는 영향을 조사하였다. 동일한 실험 조건에서, 흰색, 적색, 검정색 시험편의 순으로 긁힘 저항성이 우수함을 보였다. 이런 결과는 명암 대비효과를 가지고 설명될 수 있다. 즉 검정색 시험편의 경우, 긁힘이 생성된 손상 영역은 빛을 확산 반사하여 백화현상이 일어나고, 그 결과 주변 검정색과 대비되어 더욱 뚜렷이 구별된다. 반면, 흰색 시험편은 주변 흰색이 보호색 역할을 하여, 긁힘 손상 부위를 인지하기 어렵게 된다. 광택도가 높은 시험편 표면일수록 에틸렌, 실리카 성분 및 카르보닐 그룹의 증가를 관찰할 수 있었다. 실리카 입자에 의한 표면 강성의 증가와 산화에 의한 카르보닐기 생성은 긁힘 저항성의 증가를 유도하고, 폴리에틸렌 왁스의 증가는 표면을 매끄럽게 하여 광택도의 향상에 기여한 것으로 보인다. 연구결과를 바탕으로 우레탄-아크릴 코팅 소재의 긁힘 저항성을 향상시킬 수 있는 기술적 접근 방법에 대해 토의하였다.

구도의 영화와 히에로파니적 시간 - <희생>과 <꽃섬>을 중심으로 (Movies that seek after the truth and hierophanic time - Focused on and )

  • 안숭범
    • 비교문화연구
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    • 제34권
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    • pp.43-68
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    • 2014
  • This writing, focused on by Tarkovsky and by Song, Il-gon, examines moments of sage which is what Eliade described as 'hierophanic time'. These productions, which can be seen as movies that seek after the truth, show important paradoxical ideas and expressions in those moments. This is because symbolic messages from unrealistic and out of ordinary images are specifically shown. If they had to be compared, through the film by Tarkovsky, the technical civilization of contemporary society in an apocalyptic view is criticized and saved, or the prophetic will to not give up the desire for salvation is shown. In the process, the short shots which forces to show hierophanic time not only diversely visualized the author's ideological self-consciousness towards the conversion of the new world, but it also fulfills the metahistorical meanings mentioned by Eliade. However, in the film by Song, Il-gon, the realistic personal sufferings of three women is specifically shown first in extreme. They overcome their unsolvable problems through mysterious rituals and belief in miracles. In the scenes that include hierophanic time, there are many cases that cover Christian faith and the meaning of salvation. In other words, we can say that hierophanic time in , are related to conviction which led to moments of miracles in order to overcome reality. Therefore, even though there is a difference in the way authors use hierophanic time, the scenes that show it in the two movies display individuality of mythical imaginations disclosed by Eliade. This is because the general hope for reproduction, or meaningful symbols related to the ideal conversion of affairs are revealed.

조선 침구(鍼灸)의 지향에 대한 소고(小考) (A Study on the Mind of Joseon's Acupuncture and Moxibustion Technology)

  • 전종욱
    • 대한한의학원전학회지
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    • 제32권3호
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    • pp.59-71
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    • 2019
  • Objectives : This paper looks at the history of East Asian acupuncture and moxibustion in the context of the general orientations of craft and art. It is understood that acupuncture and moxibustion was the ultimate integration of reason and craft in which text and experience mutually influenced each other throughout its development. In Joseon, the pursuit of integration between the body and the order of the Heaven and Earth was particularly prominent. Methods : As in the words of Zhunagzi(莊子), the state in which something that deeply touches the mind manifests in the hands has been understood as the ultimate state in modern and ancient art. Starting here, I examined the possibility that Korean acupuncture and art has evolved from such foundations step by step. Major acupuncture and moxibustion texts were examined historically, starting with "Shenyingjing(神應經)", leading to "Junggan-Shenyingjing (重刊神應經)", "Chimgu-Gyeongheombang(鍼灸經驗方)", "Chijongjinam(治腫指南)", "Chijongjinam-Joseonchambon治腫指南朝鮮?本", "Chimgutaegilpyeonjip(鍼灸擇日編集)", "Chimgu-Myeonggam(鍼灸明鑑)". Introductions and main contents of the texts were analyzed and presented appropriately. Results : East Asian acupuncture and moxibustion has developed based on the study of pathways that correspond to Shen, of the accordance and harmony between body and the order of Heaven and Earth together with theoretical refinement, technical development, and acceptance of new discoveries. In the perspective of craft, this was motivated by artistic passions such as '得於心 應於手' and '醫者意也'. In the case of refined acupuncture methods, due to their difficulty in education and transmission there has been some fluctuation. Conclusions : Korea, China, and Japan share a largely similar philosophical and cultural basis. Reason and craft, text and experience mutually influenced each other while the core of refined acupuncture was widely shared. However, a certain bifurcation point could be detected.

민속과 기록의 만남, '민속기록학'을 제창한다 (A Conjunction of Folklife and Archival Science : New Dimension for Folklife Archival Science)

  • 김덕묵
    • 기록학연구
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    • 제34호
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    • pp.165-219
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    • 2012
  • 민속학과 기록학이 공유할 수 있는 것을 중심에 놓고 양자의 특기(特技)를 수렴하여 전문적인 학문체계로 만들어보고자 하는 것이 '민속기록학'이다. 민속기록학이란 양자를 절충하여 공동체에서 일어나는 생활문화의 기록 보존 활용에 대한 전반적인 지식을 탐구한다. 민속기록학은 가족, 마을, 향토사회, 현대 도시사회의 각종 공동체를 전문적으로 기록하기 위한 전략이다. 그동안 기록학의 일부에서 민간영역이나 공동체 아카이브에 대해 관심을 가졌으나 구체적인 실천방법과 경험을 가지고 있지는 않았다. 반면 민속학에서는 공동체 문화에 대한 현장관찰이나 조사방법에 대해 경험과 지식이 있으나 기록에 대한 이론적 기반과 전략, 마음가짐이 부족하였다. 양자의 장점을 결합할 때 공동체의 기록화와 아카이브 전략은 한층 탄력을 받을 수 있으며 전문성을 강화할 수 있다.

공동주택 경로당의 건축적 특성과 커뮤니티 거점공간으로서의 활용방안 연구 (Analysis of Architectural Characteristics to Utilize Senior Centers as an Community Anchor Space in Apartment Complex)

  • 은난순;박혜선
    • 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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    • 제25권2호
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    • pp.37-50
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    • 2019
  • Purpose: The purpose of this study was to analyze the space planning of the Senior Center which was supplied recently in apartment complex, to activate the spaces suitable for the changes and needs of the elderly and to explore the complex functions as a community space where intergenerational exchanges are possible. In other words, we sought implications for the physical plan of the district as a community base space and searched for improvement plan. Methods: The survey was conducted by five large private sectors of construction, and 10 of them were built after 2010 in an urban area(Seoul). Literature review, data analysis, field survey and interview were used for the research method. Results: As a result, it was difficult to meet the demands of various elderly people in the space planning, program and operation mode at the current level. In particular, the Baby Boomer generation as an active silver generation will not use the Senior Center. Therefore, based on the results of the survey, we propose some of the following about the Senior Center in apartment complex. First, it is necessary to change the term "the Senior Center" as defined in Article 55-2 of the "Regulations on Housing Construction Standards, etc.". Second, the criteria for setting up the elderly complex space should be presented specifically. Third, it is necessary to secure financial resources in operation and management. Finally, it is necessary to support the residents' organization for community revitalization. Implication: Through the amendment of the laws, it will be possible for various generations to have opportunities to interact by activating the existing community spaces for seniors. It will also contribute to improving the community of apartment complexes.

노인돌봄서비스 이용 노인의 돌봄 욕구와 안녕감에 관한 연구 : 사회적가치지향성의 효과를 중심으로 (A Study on the Care Needs and Well-being of the Elderly Using Elderly Care Service : Focus on the Social Value Orientation)

  • 김가원;최성헌
    • 한국콘텐츠학회논문지
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    • 제21권4호
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    • pp.555-564
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    • 2021
  • 본 연구는 기존 노인돌봄서비스의 사회적가치지향성과 서비스 이용 노인의 안녕감을 평가하고, 돌봄 욕구에 대한 수요를 확인하여 우리나라 노인돌봄 정책의 발전 방향을 모색하고자 실시되었다. 2019년 10월 기준 3개월 이상 노인돌봄기본서비스를 이용한 노인 1,501명을 편의표집하였으며, 빈도분석 및 기술통계분석, t-검정, 분산분석 등을 실시하였다. 분석 결과 돌봄 서비스의 사회적가치지향성은 평균 90.93점이며, 돌봄 서비스 이용 노인의 안녕감은 71.29점으로 나타났다. 분산분석 및 사후분석 결과 사회적가치지향성을 보다 높다고 인식한 집단에서 노인들의 안녕감이 통계적으로 유의미하게 높았다. 한편 돌봄 서비스 중단 시 우려되는 점에 대해 "외로움", "고독사", "안전" 등의 키워드가 도출되었으며, 향후 필요한 서비스로 '일상생활 지원 서비스'에 대한 욕구가 가장 높았다. 본 연구결과를 토대로 노인돌봄서비스의 발전 방향 모색 및 노인돌봄 체계 구축에 기초자료로 활용될 수 있을 것이다.

외식프랜차이즈의 서비스 가치가 인지적 태도, 정서적 태도, 그리고 충성도에 미치는 영향 (Effects of Service Value on Attitude, and Loyalty in Food-Service Franchise)

  • 이신화;이용기;이재규
    • 한국프랜차이즈경영연구
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    • 제10권3호
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    • pp.13-23
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    • 2019
  • Purpose - The recent franchise industry is rapidly developing. Some franchisees have a low barriers to entry and competition among companies is intensifying. In this dynamic competitive environment, companies need to focus on customer preferences, quality, and technical interfaces to gain competitive advantage. As a result, companies are required to measure the performance of service values in order to provide differentiated services from competitors. In the franchise industry, customer experience marketing of service values will enable companies to create new businesses. Franchise firms should explore a variety of services to increase service value and reduce failures. Research design, data, methodology - The questionnaire of this study was based on the previous research. Surveys were conducted on panels of online surveys. Surveys were conducted on the panel who had visited the restaurant franchise within the past month. The survey was conducted for about 7 days from February 13, 2019 to February 19, 2019. Total 300 samples, 293 were used in the analysis except for seven unfair questionnaires. Results - The findings of this study are as follows: Emotional, monetary, and reputation values have positive effects on cognitive and affective attitudes. Quality value and behavioral value did not effect cognitive attitude and affective attitude significantly. In addition, affective attitude has positive effect on loyalty, but cognitive attitude did not significant effect on loyalty. Conclusions - First, food-service franchise company should develop a service that enables customers to use the store conveniently. We need to develop a comfortable environment for our customers and provide intangible services. Second, food-service franchise company should provide a reasonable price service. Food-service franchise company needs to sell a high quality menu at a reasonable price to generate profits. Third, food-service franchise companies need to strategically respond to their reputation. In other words, food-service franchise company needs to constantly monitor the reputation of its customers and respond appropriately to market conditions. Fourth, food-service franchise company needs to develop a service method capable of emotional interaction with customers. Food-service franchise firms need to develop ongoing service methods and educate their staff.