• 제목/요약/키워드: preserve

검색결과 2,259건 처리시간 0.022초

섬유문화재 보존에 활용하기 위한 천연보존제로 처리한 직물의 특성연구 (A Study on the Characteristics of Natural Preservative Agent-treated Fabrics for Textile Cultural Properties Preservation)

  • 백영미
    • 보존과학회지
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    • 제25권2호
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    • pp.197-206
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    • 2009
  • 천연보존제는 주로 식물에서 추출된 항균물질로 만들어지며 부패되기 쉬운 식품의 보존제나 천연화장품, 약품등에 주로 사용되고 있다. 본 연구는 현재 천연화장품의 보존제로 개발되어진 천연보존제를 직물에 처리하여 이것이 섬유문화재 보존에 적용이 가능한지를 탐색하고 평가하는데 그 목적이 있다. 따라서 천연보존제로 처리한 직물의 특성을 알아보고자 천연보존제 1%로 처리한 면직물과 견직물에 대해 실험한 결과 색 및 인장강도의 변화가 극히 미약하고 중성에 가까운 pH를 나타내었으며 우수한 항균성과 항곰팡이성을 가지는 것으로 나타났고 견직물에 피해를 주는 Bacillus cereus에 대해서도 우수한 항균활성을 나타내었다. 또한 섬유문화재에 적용시키기 위한 예비실험으로 출토직물 편을 천연보존제 1%로 처리한 직물로 싸서 72시간 보관한 후 출토직물편의 미생물 실험결과 미생물의 증식이 확연히 준것을 알 수 있었다.

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족지 주위의 작은 크기의 당뇨 족부 궤양에 대한 외측 상완 유리 피판술 (Lateral Arm Free Flap for Small Sized Diabetic Foot Ulcer around Toes)

  • 정현균;소광영;국우종;김희동
    • Archives of Reconstructive Microsurgery
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    • 제17권1호
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    • pp.28-35
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    • 2008
  • The purpose of this study was to present the clinical analysis of the results of lateral arm free flap for small sized and infected diabetic foot ulcer around toes. From May 2006 to December 2007, Seven patients were included in our study. Average age was 52.8 years, six were males and one was female. All had infected diabetic foot ulcer and had exposures of bone or tendon structures. Ulcers were located around great toe in four patients, 4th toe in one and 5th toe in two. Three patients had osteomyelitis of metatarsal or phalanx. After appropriate control of infection by serial wound debridement and intravenous antibiotics, lateral arm flap was applied to cover remained soft tissue defects. Posterior radial collateral artery of lateral arm flap was reanastomosed to dorsalis pedis artery of recipient foot by end to side technique in all cases in order to preserve already compromised artery of diabetic foot. All flaps were designed over lateral epicondyle to get longer pedicle and averaged pedicle length was 8 cm. Two cases were used as a sensate flap to achieve protective sensation of foot. All flaps survived and provided satisfactory coverage of soft tissue defects on diabetc foot ulcers. All patients could achieve full weight-bearing ambulation. No patients has had recurrence of infection, ulceration and further toe amputations. There were three complications, a delayed wound healing of flap with surrounding tissue, a partial peripheral loss of flap and a numbness of forearm below donor site. All patients were satisfied with their clinical results, especially preserving their toes and could return to the previous activity levels. Lateral arm free flap could be recommend for infected diabetic foot ulcers around toes, to preserve toes, coverage of soft tissue defect and control of infection with low donor site morbidity.

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강활도체탕(羌活導滯湯) 물 추출물의 Adjuvant 유발 류마티스 관절염 랫트에 대한 관절연골 보호효과 (Articular Cartilage Protective Effects of Kangwhaldoche-tang(Qianghuodaozhi-tang) Aqueous Extracts on the Adjuvant-induced Rat Rheumatoid Arthritis)

  • 권오곤;안희덕
    • 한방재활의학과학회지
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    • 제23권2호
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    • pp.49-61
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    • 2013
  • Objectives : This study was conducted to determine whether or not Kangwhaldoche-tang(Qianghuodaozhi-tang) (KDT) aqueous extracts can protect articular cartilage losses on the Freund's complete adjuvant(FCA)-induced rat rheumatoid arthritis. Methods : 520, 260 or 130 mg/kg of KDT were orally administered once a day for 14 days from 14 days after FCA treatments, and 15 mg/kg of dexamethasone was intraperitoneally administered as reference drug in this experiment. Changes on the body weight, knee circumferences, gross arthritis score, inflammatory tissue prostaglandin(PG) $E_2$ levels were monitored with cartilage collagen components and glucosaminoglycans(GAGs) compositions - chondroitin sulphate, heparin sulphate and hyaluronic acid in the present study. Results : As results of FCA treatment, classic rheumatoid arthritis featuring dramatic decreases of the body weights, cartilage collagen and GAGs contents with increases of the knee circumferences, gross arthritis scores and inflammatory tissue $PGE_2$ levels, were demonstrated in the present study. However, these changes from FCA - induced rheumatoid arthritis were clearly inhibited by treatment of dexamethasone and all three different dosages of KDT. Although overall anti-inflammatory effects of KDT 520 mg/kg were lowered than those of dexamethasone 15 mg/kg treated rats, KDT 520 mg/kg showed more favorable preserve effects on the cartilage GAGs and KDT 260 mg/kg treated rats showed similar preserve effects as compared with dexamethasone 15 mg/kg in this experiment. Conclusions : The present results supported that over 75 mg/kg of KDT showed favorable anti-arthritic effects on the FCA-induced arthritis mediated by suppression of $PGE_2$, representative inflammatory mediator, and may help improve rheumatoid arthritis.

NGO가 바라본 수자원 정책 (Korea Water Resources Policy - from the viewpoint of Korean NGO's)

  • 김제남
    • 한국환경생태학회:학술대회논문집
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    • 한국환경생태학회 2003년도 추계학술논문발표회 논문집
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    • pp.23-29
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    • 2003
  • It has been declared in 1992 at Rio about the management of united water control and method of the management of the water resources at the water basin. And it was also mentioned about the protection of fresh water's quality and it's supply under chapter the 18th of the agenda 21. It has been 10years passed after Rio declaration, and water crisis Is getting more serious than before. Fairly, right for using water resources was given to every life as the public resources. But at the last world water forum, water was commercialized, and regulated as the basic requirement not basic right. Therefore, we could use the water according to the logic of supply and demand at the market, and with money. Furthermore, construction of the big dam which was build to solve the problem of the lack of water became one of problems for water control. Korea is keeping consistent policy such as providing water by the building of dam. Control of the water demand is the most basic and effective policy for the preservation of water resources. If we change the policy such as the construction of the dam, we should put the management of the water demand in the center with the reliable philosophy. United management of the river basin has to be made with the security of water, improvement of water quality, and protection of the ecological side each other. Management of water basin also has to be completed to solve the trouble caused by using water conflict people who live up and down stream. To maintain the good quality of water, management of water basin is necessary. Also, bottom line of the united management of water basin is voluntary involvement of every citizens and local community. We suggest to preserve the origin of river and the upper at the ecological side. It is worth it to preserve.

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「조선왕조실록」 밀납본의 열화특성 분석 (Analysis on deterioration behaviors of the beewax-treated Annals of Joseon Dynasty)

  • 조병묵;김형진;최태호;엄태진
    • 보존과학연구
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    • 통권28호
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    • pp.21-37
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    • 2007
  • Paper cultural asset show various deterioration characteristics and behaviors according to the environmental conditions during the storage. The understanding of the paper itself and its conservation knowledge is thus prerequisite to preserve paper cultural assets and pass them to descendants in a good condition. The Annals of Joseon Dynasty is one of the most important our written cultural assets (National treasure No.151) and it is registered as a UNESCO Memory of the World. The Annals of Joseon Dynasty is composed of 1707 volumes and 1,187 books that were written on the official history of 472 years(AD 1392-1863) from King Taejo to King Chuljong (25 generations). Among them, beewax-treated Annals show severe damages due to the deterioration of wax materials such as breaking, hardening, darkening, discoloring and whitening. Urgent measures should be taken to preserve the Annals and prevent further deterioration. Therefore, a systematic and scientific approach on the conservation and restoration of the Annals of Joseon Dynasty is definitely necessary. So it can be used an example to show how much the preservation science can conserve the paper cultural assets. In this respect, this study focuses on analyzing paper properties and deterioration behaviors of the Annals of King Sejong, the most damaged one, using non-destructive micro analysis techniques.

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의미적 제약조건을 고려한 XML 스키마의 변환 (XML Schema Transformation Considering Semantic Constraint)

  • 조정길
    • 한국컴퓨터정보학회논문지
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    • 제16권3호
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    • pp.53-63
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    • 2011
  • XML 데이터를 효율적으로 저장하고 질의하기 위하여 많은 기법들이 제안되었다. 이러한 목표를 위한 한 가지 방법은 XML 데이터를 관계형 형식으로 변환하여 관계형 데이터베이스를 사용하는 것이다. XML 문서의 내용, 구조, 의미 정보인 제약조건 보존은 스키마를 변환하는 과정에서 매우 중요하다. 특히 키 제약조건은 데이터베이스 이론의 중요한 부분을 차지한다. 따라서 제안된 기법은 주키와 외래키를 표현함으로써 XML의 의미를 반영하며, 변환하는 데에 XML 데이터의 키 제약조건뿐만 아니라 데이터의 내용과 구조와 의미도 보존한다. 변환 정보는 문서의 내용, 문서의 구조(부모-자식 관계), 함수적 종속성, XML key와 keyref 제약조건에 의해 포착한 문서의 의미이다. 제안된 기법은 XML 스키마를 변환할 때에 의미적 제약조건들의 보존을 보장함으로써 관계형 데이터베이스에서 데이터 무결성을 보장하기 위한 저장 프로시저나 트리거를 사용할 필요가 없는 이점이 있다. 이러한 변환은 산업체에서 필요한 데이터 관리의 한 부분으로, 이미 웹에 저장되어있는 데이터를 데이터베이스에 저장하여 다른 업무에 활용할 수가 있을 것이다. 본 논문에서는 DTD에서 지원하는 ID/IDREF 키, 상속 관계, 묵시적 참조 무결성은 반영하지 못하였다.

종과 비오톱 보전을 위한 가치평가 모형 개발 및 적용 (Development and Application of an Evaluation Model for Biotope Appraisal in terms of Species and Biotope Preservation)

  • 조현주;이현택;사공정희;나정화
    • 한국환경복원기술학회지
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    • 제13권5호
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    • pp.59-80
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    • 2010
  • This research This research aims at developing systemic evaluation model in terms of biotope preservation through reports, literatures, and expert survey analysis by implementing biotope structure analysis in area level with selecting Hyunpoong and Yuga-myeon, Dalseong county, Daegu metropolitan city as a site. First of all, as a result of biotope type classification of research site, biotope type groups are classified into total 13, and its biotope types are divided into total 61. Also, as a result of literature analysis, total 18 items are drawn such as diversity of biotope typical species as a index item to assess the preservation value of biotope, and the first evaluation index are divided into 10 and the second ones are divided into 8 according to characteristic of index items. As a result of expert survey analysis, All 10 index items, first evaluation index, show high importance average (above 4.7). As a result of implementation of main cause for categorizing evaluation index by characteristic, there are 3 factors such as 'obstructive factor.' Based on above survey analysis result, as a result of estimating the weight of each item, 'restoration factor' showed the highest, 3.4541, but 'factor of habitat stability' showed 3.1468, which is the lowest The systemic value evaluation was set by comprehensively analyzing these results. As a result of biotope preservation value evaluation through applying research site, total 19 types which are abundant in vegetation are classified into I class, 12 types in II class, 5 types in III class, 10 types in IV class, and 15 types in V class respectively. Lastly, as a result of second evaluation, it is analyzed that there are 17 special meaningful space to preserve species and biotope(1a, 1b) and 61 meaningful space to preserve species (2a, 2b, 2c).

청산도 구들장논의 분포와 물리적 구조에 관한 연구 (Geographical Distribution and Physical Structure of Gudle-jang Paddy-field in Cheongsando)

  • 조영재;유학열;윤원근;최식인;이영옥
    • 농촌계획
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    • 제18권3호
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    • pp.103-110
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    • 2012
  • This study aims to find out the geographical distribution, the physical structure and characteristic of Gudle-jang Paddy-field in Cheongsando. On the basis of this study, the potential value and the assignment for the preservation of Gudle-jang Paddy-field were suggested. Gudle-jang Paddy-field is centrally distributed to Cheongsando and has various features as follows. First, it has the Ondol structure which is used Gudle-jang. Second, it has an irrigation canal which has functions of the tank and the prevention of cold-weather damage as well as the irrigation and drainage canal. The values of Gudle-jang Paddy-field are as follows; 1) It is the peculiar and inherent agricultural structure which is only found in Cheongsando. 2) It is the structure that the agricultural civil engineering and the agricultural water management technique of traditional methode are applied. 3) It has the worths of the traditional culture of Korea. 4) It is the important resource creating superb rural landscape of the region. In spite of these values of Gudle-jang Paddy-field, there were little efforts to preserve it. From now on, it is needed to form of sympathy about the value of Gudle-jang Paddy-field and to make efforts for preservation of it. Also the institutional and political strategy should be provided to preserve and manage Gudle-jang Paddy-field.

갑상선 수술에서 수술 중 신경 감시의 효용성: 학습곡선을 중심으로 (Efficacy of Intraoperative Neural Monitoring (IONM) in Thyroid Surgery: the Learning Curve)

  • 곽민규;이송재;송창면;지용배;태경
    • International journal of thyroidology
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    • 제11권2호
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    • pp.130-136
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    • 2018
  • Background and Objectives: Intraoperative neural monitoring (IONM) of recurrent laryngeal nerve (RLN) in thyroid surgery has been employed worldwide to identify and preserve the nerve as an adjunct to visual identification. The aims of this study was to evaluate the efficacy of IONM and difficulties in the learning curve. Materials and Methods: We studied 63 patients who underwent thyroidectomy with IONM during last 2 years. The standard IONM procedure was performed using NIM 3.0 or C2 Nerve Monitoring System. Patients were divided into two chronological groups based on the success rate of IONM (33 cases in the early period and 30 cases in the late period), and the outcomes were compared between the two groups. Results: Of 63 patients, 32 underwent total thyroidectomy and 31 thyroid lobectomy. Failure of IONM occurred in 9 cases: 8 cases in the early period and 1 case in the late period. Loss of signal occurred in 8 nerves of 82 nerves at risk. The positive predictive value increased from 16.7% in the early period to 50% in the late period. The mean amplitude of the late period was higher than that of the early period (p<0.001). Conclusion: IONM in thyroid surgery is effective to preserve the RLN and to predict postoperative nerve function. However, failure of IONM and high false positive rate can occur in the learning curve, and the learning curve was about 30 cases based on the results of this study.

Historical Perspectives of Korean Society for Thoracic and Cardiovascular Surgery: Inauguration and Activities of the Historical Records Preservation Committee

  • Park, Kook-Yang;Lee, Sungsoo;Chang, Byung-Chul;Oh, Tae Yun
    • Journal of Chest Surgery
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    • 제52권4호
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    • pp.191-194
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    • 2019
  • The Korean Society for Thoracic and Cardiovascular Surgery (KTCVS) was founded in 1968 and celebrated the 50th anniversary of its founding in 2018. The launch of the KTCVS may seem somewhat recent, given that the American Association for Thoracic Surgery was founded in 1917. However, considering the circumstances of the Korean medical community after the Japanese occupation (1910-1945), World War II (1940-1945), and the Korean War (1950-1953), this apparent delay is understandable. Even before the foundation of the KTCVS, the early pioneers of thoracic and cardiovascular surgery promptly adopted medical technologies from more advanced countries such as the United States, and contributed significantly to both cardiac and thoracic surgery despite difficult circumstances. In 2012, before the 50th anniversary of the founding of the KTCVS, members shared the opinion that objective records of the activities of the early pioneers should be identified and preserved, and reacted positively towards the necessity for historians who would preserve such records. With this background, the Historical Records Preservation Committee of the KTCVS (hereinafter, referred to as 'the Committee') was launched. The Committee published a white paper on the history of thoracic and cardiovascular surgery in 2015 and held an exhibition of the achievements of the pioneers at the 50th anniversary of the founding of the KTCVS. The Committee also published a book entitled "The history of Korean thoracic surgery with photographs: celebrating the 50th anniversary of the society." The Committee will keep making efforts to find and preserve materials related to activities during the early development of thoracic and cardiovascular surgery in Korea.