• 제목/요약/키워드: black plastic

검색결과 130건 처리시간 0.023초

Erwinia carotovora subsp. carotovora에 의한 고추 마디 무름병 (Bacterial Node Soft Rot of Pepper (Capsicum annuum L.) Caused by Erwinia carotovora subsp. carotovora)

  • 정기채;임진우;김승한;임양숙;김종완
    • 한국식물병리학회지
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    • 제14권6호
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    • pp.741-743
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    • 1998
  • A bacterial disease of pepper (Capsicum annuum L.) that rooted the stem nodes to black was found in pepper plants which cultivated in plastic house at Chungdo, Kyungpook, Korea in March, 1998. Bacterial isolates derived from the diseased peppers were pathogenic to potato, eggplant and Chinese cabbage but, was not pathogenic to chrysanthemum by artificial inoculation. On the basis of bacteriological characteristics and pathogenicity test on host plants, the causal organism of the node soft rot of pepper is identified as Erwinia carotovora subsp. carotovora and the name of disease is proposed as bacterial node soft rot of pepper.

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기도내 이물의 외과적 처치에 관한 연구 (The Surgical Management of Aspirated Foreign Bodies in Airways)

  • 김주현;김삼현
    • Journal of Chest Surgery
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    • 제14권4호
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    • pp.331-338
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    • 1981
  • The inhalation of a foreign body into the tracheobronchial tree is a child is a life-threatening accident. Forgotten foreign bodies In the airways cause chronic pulmonary infections, allergic asthma, bronchiectatic changes, and lung abscess Foreign bodies that cannot be grasped by bronchoscopic forceps should be removed by thoracotomy and bronchotomy. This report describes our experience In 16 patients who were treated to remove inhaled foreign bodies from the airways after repeated bronchoscopies had been unsuccessful from 1963 to 1981 at the department thoracic surgery of Seoul National University Hospital. The surgical procedures are as follows: 12 patients bronchotomy, 2 patient pneumonectomy, 2 patients lobectomy. In these cases, the foreign bodies are 8 metallic material, 3 plastic material, 1 bean, 1 black snail, and 3 cases of no records. Bronchotomy must be performed as soon as possible in order to avoid more advanced pathologic changes In the Involved lung, such as bronchiectasis, fibrosis or abscess.

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Acute cocaine intoxication in a body packer

  • Park, Mee-Jung;Lim, Mi-Ae;Chung, Hee-Sun
    • 분석과학
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    • 제19권1호
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    • pp.103-106
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    • 2006
  • A 35-year-old Perubian who suffered from grand mal seizures died in the aircraft on his way from the United States to Hongkong via Incheon international airport of Korea. While performing the autopsy, 115 packs made with double layer of transparent film and black plastic bag containing cocaine were found in the ileum and large intestine. Among of them, 3 packs were ruptured. To determine the concentration of cocaine and its metabolites, blood, urine, bile, liver, spleen, heart, kidney, brain and gastric contents were taken and toxicological analysis was performed. Gas chromatography/mass spectrometry (GC/MS) following liquid-phase extraction using chloroform:isopropanol (=9:1) and derivatization with bis(trimethylsilyl)-trifluoroacetamide (contains 1% trimethylchlorosilane) was performed. High levels of cocaine, benzoylecgonine (BE) and ecgonine methylester (EME) were found in the postmortem blood (0.96, 3.09 and $5.59{\mu}g/mL$) and urine (32.85, 145.35 and $53.17{\mu}g/mL$), respectively. Cocaine and its metabolites were also detected in all other biological specimen.

Rheological properties of arabinogalactan solutions related to the carbohydrate composition of different legumes

  • Kyeongyee Kim;Choon Young Kim
    • 한국식품저장유통학회지
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    • 제30권5호
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    • pp.785-796
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    • 2023
  • The aim of this study was to elucidate chemical structures and rheological properties of arabinogalactans (AGs) isolated from three legumes including black gram (BG), great northern bean (GNB), and California small white bean (CSWB). The ratio of galactose to arabinose (G/A) in three legumes increased in the order of BG > GNB > CSWB. The rheological measurements of 1-5% (w/v) AG solutions revealed Newtonian and non-Newtonian flow behaviors. BG exhibited yield stress, indicating plastic behavior. Small-amplitude oscillatory tests indicated viscoelastic properties of BG, GNB, and CSWB ranging from solid-like, paste-like, and liquid-like behaviors, respectively. Small-strain oscillatory tests were conducted to assess the structure recovery of the AGs after pre-shearing. G" values of BG and GNB increased, but those of CSWB remained constant after shearing. These results suggest that the chemical structures of the AGs, particularly their G/A ratios, influence their rheological properties.

간이(簡易) 태양열(太陽熱) 집열기(集熱器)의 유형별(類型別) 분석(分析) 및 고추건조(乾燥)에의 이용(利用) (Application Performances of the Simplified Solar Collectors and for the Drying of Red Pepper)

  • 최부돌;전재근
    • 한국식품과학회지
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    • 제18권6호
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    • pp.479-484
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    • 1986
  • 농가(農家) 규모에서 활용(活用)이 가능한 경제적(經濟的)이며 제작(製作)이 간편한 태양열(太陽熱) 건조장치(乾燥裝置)로 평판식(平板式)과 튜브식(式) 집열기(集熱器)를 설계 제작하고 이들의 열이용(熱利用) 효율(效率)을 비교 분석(分析)하였는데, 집열판(集熱板)으로 흑색(黑色) 도색 함석판과 흑색(黑色) 비닐 필름을 사용하였을때 이들의 열이용(熱利用)의 효율(效率)은 평판식(平板式)에서 최대 48.2%, 평균 42.8%였고, 튜브식(式)에서 최대 25.4%, 평균 22.9%였다. 평판식(平板式)과 튜브식(式) 집열기(集熱器)에서 일사량(日射量), 방향계수, 공기의 풍량(風量)을 측정(測定)하여 공기의 온도상승도(溫度上昇度)를 예측(豫測)할 수 있는 실험식(實驗式)을 구하여, 필요한 건조(乾燥) 조건에 따라 집열면적(集熱面積)및 풍량(風量)을 결정할 수 있었다. 튜브식(式) 집열기(集熱器)를 사용해 고추를 건조(乾燥)한 결과(結果) 건조조작(乾燥操作)을 수행할 수 있었으며 건조속도(乾燥速度)는 노천건조(露天乾燥)에 比(비)헤 2배에 달하였다. 따라서 튜브식(式) 집열기(集熱器)를 농가(農家) 규모에서도 태양열(太陽熱) 이용(利用) 건조(乾燥)시설로 활용할 수 있었다.

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철산화물 안료 원료와 번조조건에 따른 철화분청사기의 유약 발색 연구 (Study on Color Formation of Cheolhwa Buncheong Stoneware Glaze by Pigment Raw Materials of Iron Oxides and Firing Conditions)

  • 김지혜;한민수;정영유;최성재
    • 보존과학회지
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    • 제35권6호
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    • pp.573-587
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    • 2019
  • 본 연구는 전통적인 철화분청사기 안료를 재현하기 위하여 국내산 자철석과 점토, 비가소성 원료를 혼합하여 재현시편을 제작하고, 발색이 양호한 30개의 시편들을 과학적으로 분석함으로써 유약의 발색특성을 알아보고자 하였다. 안료의 주원료인 자철석은 1,200℃의 환원 환경에서 짙은 흑색으로 발색하는 안료이나, 부가적으로 첨가되는 석회 성분과 반응하여 1,230℃ 산화 환경에서는 녹황색 계열로 변색된다. 적철석은 소성 온도 및 환경에 크게 영향을 받지 않으나 Fe를 10 wt% 이상 함유한 점토와 혼합하였을 때는 짙은 흑색으로 발색한다. 안료의 유동성은 R2O3/RO2 값에 의해 결정되며, 이는 발색에도 영향을 미친다. 미세조직 관찰에서 안료의 입자크기와 소성 환경에 따라 유약층의 발색과 철산화물 결정들이 일부 다른 양상을 보인다. 자철석을 원료로 한 안료는 1,200℃ 산화 환경에서는 유약층과 분장토의 경계면에 철산화물이 응집체 형태로 존재하며, 흑갈색으로 발색하지만, 환원 환경 소성에서는 철산화물의 응집체가 존재하지 않고 유약층에 균질하게 분포하며, 짙은 흑색으로 발색한다. 반면, 적철석을 기반으로한 안료는 산화 환경에서 유약층내 수지상 조직을 형성하며, 흑색으로 발색한다.

우이도 사구 해안의 외국기인 해양쓰레기 특성 (Features of Foreign Marine Debris on the Dune Beach of U-i Island, Korea)

  • 이종명;장용창;홍선욱;최현우
    • 해양환경안전학회지
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    • 제18권2호
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    • pp.167-174
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    • 2012
  • 해양쓰레기의 국가간 이동은 우리나라와 주변국들 사이의 잠재적 외교 갈등 요인 중 하나이다. 국내에서 보기 드문 미피복 사구가 있는 전남 신안군 우이도도 외국기인 해양쓰레기의 피해를 입고 있는 것으로 언론에 보도되고 있다. 그러나 아직 이 외국기인 해양쓰레기에 대한 과학적인 연구결과는 발표된 바 없다. 우이도 사구에 접한 성촌해변 $200m^2$에서 2012년 2월 조사한 결과, 전체 해양쓰레기 중 외국기인의 비율은 수량 기준 34.7%, 중량 기준 56.3%, 부피 기준 48.5%였다. 기인 국가는 수량 기준 98.9%가 중국이었다. 가장 많이 발견된 외국기인 해양쓰레기는 플라스틱 음료수병과 검정 구형 부자였다. 검정 구형 부자는 중국의 패류나 해조류 양식업에 사용되는 것이다. 성촌해변 1,100m 구간에서 총 539개가 발견되었는데 그 중 생산지를 확인할 수 있는 것은 15개였다. 이들 중 87.6%가 중국 북부 랴오닝성 제품으로 나타났다. 외국기인 해양쓰레기는 국내 정책으로는 예방하기 힘들기 때문에 기인국과의 협력을 통해 해당 쓰레기의 관리 정책 개선을 추동해야 한다. 더불어 겨울철에 대량 유입되는 검정 구형 부자는 원활한 국내 재이용 등을 위한 제도적 지원 방안이 마련되어야 할 것이다. 해안 사구의 지형적, 생태적 피해를 최소화할 수 있는 해양쓰레기 수거 처리 방법의 개발도 필요하다.

비닐하우스 이용 태양초 생산시 산광 재료가 상품 수량과 품질에 미치는 영향 (Effects of Diffused Light Materials on Marketable Yield and Quality of Sunlight Dried Red Pepper (Capsicum annuum L.) in Plastic Film House)

  • 이광재;송명규;김시동;남상영;이기열;김태중;김동억;윤정범;최규홍
    • 한국자원식물학회지
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    • 제27권1호
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    • pp.102-109
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    • 2014
  • 본 연구는 태양초 생산시 전처리와 산광 재료가 상품성과 건조 효율에 미치는 효과를 구명하기 위하여 실시하였다. 벌크, 하우스 밀폐, PE비닐밀봉 처리 등 전처리를 하였으며, 산광 재료로 대조구, 차광망 35%, 천막지, 백색부직포, 흑색부직포 등을 사용하였다. 벌크 후숙 처리구의 상품 수량이 300 g으로 가장 많았으며, 하우스 건조가 275 g이었으며, PE 밀봉 처리구가 112 g으로 가장 적었다. 적색도는 PE 밀봉 처리시 17.85로 가장 높았고 벌크 후숙 처리에서 가장 낮았으며, 각각의 처리 간에 유의성이 인정되었다. 고추의 수분 감모 속도는 대조구가 가장 빨랐으며, 차광망 처리구가 가장 늦었다. 상품 수량지수는 백색부직포가 대조구 100%에 비해 114%로 가장 높았다. 적색도는 흑색부직포와 천막지가 15.65로 다른 처리와 유의성을 나타냈다. 캡사이신 함량은 흑색부직포에서 $160mg{\cdot}100g^{-1}$로 가장 높았다. 비닐하우스 이용 태양초 생산시 비닐하우스 밀폐 전처리를 하고 백색부직포로 산광하면 대조구보다 건조기간은 2일 정도 지연되었으나 상품 수량은 14% 증가하였다. 본 실험에서 얻어진 결과는 태양초 생산 효율 증진뿐만 아니라 향후 연구에 도움이 되리라 기대된다.

한국과 일본의 현대복식에 나타난 용양의 비교분석 (Comparative Analysis of Dragon Patterns Found in Contemporary Fashion between Korea and Japan)

  • 남미현
    • 한국의상디자인학회지
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    • 제3권1호
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    • pp.57-76
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    • 2001
  • This study was intended to make a comparative analysis of the plastic features of Korean and Japanese dragon patterns found in the process of recreating traditions in comtemporary fashion based on the investigation into the style of expression in relation to the origin, formative evolution, symbolism and traditional costume of the dragon. The form of the dragon has evolved with some similarity and peculiarity between both countries and been changed into many kinds and diverse forms such as the humorous dragon pattern of the Yi Dynasty and the simplified and designed dragon pattern symbolizing the Japanese family crest and the like, Its symbolism has lasted in terms of the sacrificial object, royal power, good omen, Buddhist guardian and the like. There is a difference in the aesthetic sense due to the different traditions and cultural background between Korea and Japan, and the dragon pattern found in the process of recreating the tradition in comtemporary fashion manifested itself as the peculiar aspect. An attempt was made to make a comparative analysis of the dragon pattern found in comtemporary fashion between Korea and Japan. The following results were obtained: First, the commonality between both countries was to make a contemporary expression of the dragon pattern, which was expressed in a realistic form because of a traditionally inherent strong image of the dragon. On the other hand, the designed dragon pattern rarely found expression. It can be said that carefully treating the dragon pattern is attributed to the Oriental thinking like this. Second, Korean people have arranged one or more simplified dragon patterns taking on a form of the coiling dragon in the composition of the scattered point and made a comtemporary expression of them by the contrast of black and white shading in Korea. And the humorous form of the dragon pattern manifested itself in the Yi Dynasty. On the other hand, the case of printing the dragon pattern in the black dragon sword of all over the Kabuki costume in a pictorial composition has frequently appeared in Japan. And Japanese people have expressed its lightness and briskness rather than the dignity and strength that the dragon pattern gives with the use of strong color tones and new materials.

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법복의 조형성에 대한 연구 (A study on the Judge's Robe)

  • 금기숙;조효숙
    • 복식
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    • 제38권
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    • pp.261-277
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    • 1998
  • This study is focused on two things, on the matter of judge's robe(JR) which is worn in the court. First, Korean JR were examined from late 19th century through today(1997)to reveal the entity of the JR : characteristics of each JR has been changed according to the political or international influences. Second, JR from 92 countries were collected and analyzed to figure out the plastic characteristics of the JR among international society. The results are as follows : First, Korean JR were have changed many times according to the social, political influences. The Korean modern judicial system were proclaim in 1895 and JR were adapted in 1906. In 1920, Japanese style JR were worn until 1945 when Korean government have had her Independence. Korean Government have changed JR through which Korean identities were expressed through patterns such as national flower Mukungwha(Hibiscus) and Yang & Yin. In 1966 Korean JR were changed again and adopted western style JR until today (1997) which have many things in common with academic robe of university or clerical robe. Second, the analysis of the 92 international JR were summarized as follows : (1) The JR were consisted of three styles such as Gown style, Cape style and Jacket style. And Gown style has been found as the most popular style(86%) for JR among them. (2) As the main color of JR, black is used among 60% of countries and red is used in 33% of countries. Gold were matched for black JR and gray for red JR as their sub-color. (3) The most popular material were wool and satin were favored as its sub-materials. (4) Natural and Geometric Patterns were used to express the symbol of the country and the court. (5) Decorative items and details such as hat, gloves, shoes, wig, necklace, neck-tie, stole, tassels, rope, ruffles were used to express wearers dignity and symbolism. These results are expected to be adapted for the future design for new JR which has its identity and characteristics.

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