• 제목/요약/키워드: closed culture

검색결과 192건 처리시간 0.023초

폴리우레탄 폼을 이용한 쥐 일차 간세포의 구상체 배양 (Formation of Spheroids of Adult Rat Primary Hepatocytes in Polyurethane Foam)

  • 안재일;이두훈
    • 대한의용생체공학회:의공학회지
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    • 제19권3호
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    • pp.215-224
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    • 1998
  • 본 논문은 급성 간 부전 환자나 간이식 대기상태에 있는 환자에 이용하기 위한 체외 간 보조장치를 개발하기 위한 기초 실험에 관한 것이다. 밀도 33kg/m, 평균 직경 500um, 60-70%의 window를 가진 폴리우레탄 폼을 15% NCO-프리폴리머로 제조하였다. 폴리우레탄 폼에 접종된 간세포는 3일 후에 거의 모두 100-150um 크기의 구상체를 형성하였다. BSA 코팅을 한 폴리우레탄 폼은 BSA로 코팅하지 않은 폴리우레탄 폼보다 간세포 구상체 형성 시간이 더 짧았다. 폴리우레탄 폼에 형성된 간세포 구상체의 간 기능을 증명하기 위하여 암모니아 제거율과 요소 및 알부민 분비율을 측정하였다. 폴리우레탄 폼은 간세포 구상체 배양에 적합하며, 폴리우레탄 폼 내에서의 간세포 구상체 배양은 체외 간 보조장치로의 개발 가능성이 높다.

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Evolution of Automatic Ordering System in Retail Market : Analyzing Inventory Data

  • Paik, SiHyun;Frazier, DeWayne P.;Mark, Isenhoff
    • International Journal of Advanced Culture Technology
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    • 제3권2호
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    • pp.1-14
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    • 2015
  • The purpose of this paper is to reveal two problems in the existing inventory systems in retail market, and to suggest a Two-Bin System under Automatic Ordering System considering only base-stock. Large retailers already have a sophisticated inventory system based on an automatic ordering principle. However, why does the out-of-stock (OOS) happen in large discount stores in spite of having a good inventory system? This paper suggests two systems after finding the root causes concerning the previous question. For evaluating the performance of each system, the random 200 data set in each sample group was generated from MINITAB 16 and obeyed the Poisson distribution. The existing inventory system in retail market cannot help generating OOS due to indwelling contradiction in itself. The reasons are the ordering deadline and the relationship between ordering quantity and base stock. This paper also demonstrates that these previous studies on inventory fall into the closed loop. Also the paper shows that the performance of the replenishment policy was better than traditional methods dealing with ordering quantity and base stock.

Ethylene Oxide 가스 멸균물품의 유효기간에 관한 연구 - 보관환경을 중심으로 - (A Study on Expiration Date on Ethylene Oxide Gas Sterilization Products - Related to Storage Environment -)

  • 손정숙;유일경
    • 기본간호학회지
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    • 제21권2호
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    • pp.141-150
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    • 2014
  • Purpose: This was a study on the expiration date of Ethylene Oxide (EO) gas sterilization and effects of the environmental factors of temperature, humidity and type of cabinet in sterile goods storage area on the expiration date. Methods: Sterile goods storage areas from 13 departments in one hospital were selected and 455 EO gas sterilization samples were prepared and kept in those areas over the 14 months of the study. Each sample was tested with a microbiological culture in the laboratory every week. If the result was positive, the sample was regarded as contaminated. The researcher visited once a month to check the temperature, humidity and type of cabinet. Results: With the exception of 1 sample which was positive at 56th week. 454 samples were confirmed as negative. The environment of the samples storage area was measured monthly. The annual average temperature was $24.2{\pm}1.6^{\circ}C$, and the mean relative humidity $34.7{\pm}15.2%$. The types of cabinet were 7 open and 6 closed. Conclusion: The results of the microbiological culture at 13 months showed that none of the samples were contaminated. Therefore the hospital's existing Expiration Date can be extended from 6 months to 13~14 months.

CAD를 활용한 데이 마케팅에 의한 넥타이 디자인 연구 - 크리스마스를 중심으로 - (A Study on the Necktie Design to Day Marketing using CAD - Focused on Christmas -)

  • 추미경
    • 복식문화연구
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    • 제18권4호
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    • pp.640-654
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    • 2010
  • The purpose of this study is to design neckties that are motivated by Christmas symbol images that have been known to public most widely in the basis of Day marketing so as to develop the competitive commodities closed to consumers' emotion in the fashion industry. As a method of this study were to use Adobe Illustrator CS2, which is one of the vector graphic programs, to present the motif design such as Santa Claus, trees, presents and letters among Christmas symbols, and are to apply to neckties by giving a change with striped pattern, all over pattern and one point pattern. The results are as follows; Firstly, Santa Claus image was expressed by color contrast with red and white, which was perceived by red, green and white that are mostly used in Christmas. Secondly, tree images are expressed abstractly with color contrast where red and green are contrasted, and color way change was given for symbol color of Christmas. Third, in the image of gift, the image of share and image of colorfulness were considered for expression by making motifs of three dimensional hexahedron shape. Fourthly, in the image of type, motif was expressed by giving a change in horizontal and vertical writing types.

멸균물품의 유효기간에 관한 연구: 포장재와 보관환경을 중심으로 (Validity Periods of Sterilization Products: Focus on Packing Materials and Storage Environments)

  • 박현희;이광옥
    • 근관절건강학회지
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    • 제30권3호
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    • pp.263-272
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    • 2023
  • Purpose: The aim of this study was to provide a scientific basis for shelf life and re-establish the shelf life in a hospital environment by investigating the validity periods of various packaging materials. Methods: We selected six departments to store sterilized items, prepared 482 sterilized items, and stored them for 12 months. Each sample was tested using a microbiological culture in the laboratory every two weeks. When the result was positive, the sample was considered contaminated. The temperature and relative humidity were measured using an automatic control system to investigate the storage environment during the study period. Results: Except for two samples, which were positive in the 22nd and 28th weeks, 480 samples were negative. The temperature and relative humidity of the sample storage area were measured every week. The annual average temperature was 23.6±1.6℃, and the mean relative humidity was 35.1±15.2%. The cabinets used in this study were the two-open and four-closed types. Conclusion: This study confirmed the validity of the expiration date in a hospital environment. Based on the results, the nonwoven fabric remained sterile for more than nine months. No case of contamination of the paper-plastic pouch packaging was observed, owing to the microbial culture for two months.

다크 투어리즘을 활용한 문화관광 산업화 방안에 관한 연구 - 한말 호남 의병사(義兵史)를 중심으로 - (Using Dark Tourism Study on Culture and Tourism of industrialization - Focusing on Honam righteous army -)

  • 김현철;류준호;하규수
    • 벤처창업연구
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    • 제6권1호
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    • pp.59-81
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    • 2011
  • 21세기는 지식과 정보의 창출 및 활용이 모든 경제활동의 핵심이 되는 지식기반 경제로 접어들고 있다. 이 시대의 문화는 단순히 인문학적 개념의 문화를 벗어나 산업성이 강조된 문화로의 모습을 확보함으로 사회적 역할을 배가시키고 있다. 문화산업, 문화콘텐츠 산업에 대한 관심 확대는 중앙정부는 물론 대다수 지방정부에서 지역경제 활성화의 명분아래 진흥하고 있는 사업이 되고 있다. 문화산업은 한 국가나 사회의 고유한 문화적 내용을 창조적인 기획력을 바탕으로 재창조해 내는 산업으로 대표적인 고위험 고수익(high risk and high return)산업이며 창조산업과 벤처산업의 특성이 어우러진 독특한 산업적 특성을 지니고 있다는 점이다. 이러한 시대와 산업적인 흐름에 일조 할 수 있는 우리의 소중한 문화자산이며 역사인 의병운동사는 또 하나의 원천 자원이 될 것이다. 역사적으로 보면 외부의 침략으로부터 나라를 구하기 위하여 자발적으로 일어난 의병운동은 우리의 가장 진솔한 민족문화의 하나 일 것이다. 우리나라는 과거부터 수많은 외침으로부터 나라를 지켜왔다. 임진의병, 정유의병 그리고 구한말의병으로 이어져 오는 그 정신과 문화 그리고 관련 유적 등은 전국 방방곡곡에 산재해 있다. 이에, 본 연구에서는 이러한 의병운동을 문화관광산업과 연계 할 수 있는 방안과 활성화를 위한 방안을 제시하고자 한다.

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중국 대형정경체험극 '우견평요'의 성공요인 분석 (Success Factors Analysis of Chinese Large Scenario Experience Drama:'You Jian Ping-yao')

  • 왕이룬;장혜원
    • 지역과문화
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    • 제8권3호
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    • pp.27-48
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    • 2021
  • 近年来, 中国的旅游演艺进行了一系列新项目的落成, 使旅游演艺产业的票房增加, 经济收入增高, 同时带动了旅游演艺的品牌形成, 而且拥有了一定的良好口碑, 对地域的文化传播, 经济发展都有一定的推动作用, 其中大型情景体验剧就是重点项目之一。大型情景体验剧是一种以模拟真实环境空间设计为空间, 使观众在视觉, 听觉, 嗅觉, 味觉和触觉等多位感官上进行主动式体验, 互动性极强的新戏剧形式。大型情景体验剧根据中国的传统文化, 地域文化, 流传已久的故事进行了改编, 又结合了灯光, 音效, 特效, 3D效果等高科技, 使观众的体验更加真实。《又见平遥》作为中国第一部大型室内情景体验剧, 以新的表现形式和创作手段来体现山西文化的博大精深。以情景体验剧的形式, 使观众更加直观地感受到了"山西人"的"山西情"和"山西德", 推动山西旅游业的发展, 带动山西地区的经济, 逐渐形成了完整的产业链。但也有剧情连接不顺及游客管理不当等局限, 可以通过更多的观众互动及指引完善演出效果。因此可以看出, 大型情景体验剧对地域在传统文化, 价值观的传播上, 旅游产业的发展上, 地域的品牌特色形成以及经济发展上都有很大的推动作用。通过这些, 可以看出大型情景体验剧对实景演出的发展具有创新思维内容, 逐渐形成产业链闭环以及拓宽宣传渠道等启示作用。

돌궐 의복 형태 연구 (A Study on the Style of Clothing of Turk)

  • 양예은;채금석
    • 한국의상디자인학회지
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    • 제19권2호
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    • pp.63-78
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    • 2017
  • The purposes of this study was to study Turkic clothing traditions as a way to shed light on cultural development via the interactions among different tribes along the Silk Road, the close correlations between the surroundings of the Turks and their costumes, and the root of Turkic culture through literature studies and empirical studies. The study results are as follows. First, the Turks were nomadic equestrian tribes in the north that dominated the cold dry steppes from the $6^{th}$ to $8^{th}$ century A.D., when they expanded their influence to Dongbei, China to the east, and Turkistan (Central Asia) to the west. The Turks formed a nomadic lifestyle and culture suited to a cold dry climate, and interacted with various other tribes via the Silk Road, while exchanging and sharing different cultural aspects. Second, given that the Turkic garments constitute a two-piece style, which is a category of the basic nomadic costume of northern tribes, and that the artifact materials manifest jackets, overcoats, pants and skirts, the garments are categorized into tops and bottoms. The tops are sub-categorized into jackets and overcoats. The bottoms are sub-categorized into pants and skirts. In light of the necklines of tops, jackets have round necklines, while overcoats have V-necklines, round necklines and lapel collars. The bottoms include narrow-legged pants, wide-legged pants and closed-hem pants. Drapery skirts are worn at the waist. Third, the Turkic V-neckline overcoat is comparable to the Huns' silk overcoat, which illustrates the ethnic link between the two tribes. Also, the Turkic narrow- and wide-legged pants are consistent with the Huns' silk pants discovered in Noin Ula. The Turkic costumes are mostly tight fitting, suitable for the nomadic lifestyle in a cold, dry climate. Also, additional patches must be attached to the crotch points of pants due to the equestrian lifestyle.

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국민의 정부 시기 미술진흥정책의 성과와 한계 (Evaluation of Visual Arts Policy during Kookmin Government Period)

  • 양현미
    • 미술이론과 현장
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    • 제1호
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    • pp.93-108
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    • 2003
  • The aim of this thesis is to evaluate visual arts policy during Kookmin government period(1998-2002). In the beginning, many artists had expected president Kim Dae Jung to enlarge arts support But the evaluation of them was very negative because the government was only interested in the development of cultural industry. First, I analysed the government expenditure in the visual arts. Department of Culture and Tourism took the responsibility of visual arts policy. The budget of arts and culture increased to 1 % of total government expenditure in this period. But the main factor was the increasement of cultural industry and tourism expenditure. The budget of visual arts in 2002 was only 6,600million won. Second, I analysed visual arts support programs. (1) The government introduced studio programs for the first time. For 5 years, 2 national studios and 23 public studios were established. (2) The number of art museum was increased to 62. (3) It introduced alternative space support program and supported 200million won annually. (4) Percent for art scheme reduced from 1% to 0.7% of total construction cost, but still 27 public sculpture gardens were built. (5) Business support for visual arts reduced because of IMF. (6) Also arts market froze and many commercial galleries were closed. (7) In order to revitalize region through arts and to promote international exchange of culture, Gwangju Biennale was created. Third, I analysed Arts Plan 2002. It had a radical limitation because it was established in the last year of Kookmin government period. Also it showed special favors to some arts organizations. In general, I think that positive outcomes are the introductions of the studio program and the alternative space support program. Especially alternative space support program enforced the diversity of visual arts, and encouraged creative young artists. But policy of arts market failed because of IMF and visual artists had to go through rough times.

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쿠샨 왕조 복식에 나타난 외부적인 요소 - 유물분석을 중심으로 - (A Study on the Foreign Details of the Kushan Costume - Focusing Analysis of Antiquities -)

  • 장영수
    • 한국의류산업학회지
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    • 제20권1호
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    • pp.10-21
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    • 2018
  • Kushan dynasty was located in the middle of Silkroad, from the 1st century BC to the second century AD, where it negotiated with various races. Therefore, the culture of the Kushan has multi cultural elements. The purpose of this study is to understand the life of the ancient Silkroad by accessing this characteristic culture of the Kushan through costume analysis. And the results of this study will be used as a basic data for studying the relationship between Korean ancient costumes and Silkroad costume type. As a research method, literature survey and artifacts analysis were performed in parallel. The results of this study are as follows: The basic type of the Kushan costume was a typical nomadic ethnic type with a long tunic and trousers. Tunic was fastened with a belt and straps at the waist, and the lower part of the belt was wider like a skirt. The tunic was divided into two types: open front and closed front. Because Kushan was originally a nomadic people who lived in Central Asia, the nomadic elements of Central Asia remained unchanged in the early costumes of the Kushan, but over time the details of the costumes changed according to the surrounding political situation. When Kushan negotiated with Parthia, the parthian coat was worn by the influence of them. After occupying Greco Bactria, accepting the Greek culture of Bactria, Kushan's costume was supplemented by the external costume element of drapery, which changed the style of the nomadic costume into a elegant style.