• 제목/요약/키워드: FOB

검색결과 84건 처리시간 0.026초

니코틴이 사람태아골모세포의 광물화 과정에 미치는 영향 (Effects of Nicotine on mineralization in human fetal osteoblasts)

  • 임성우;한상헌;이성진;유석주;신형식;유형근
    • Journal of Periodontal and Implant Science
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    • 제33권4호
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    • pp.729-738
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    • 2003
  • Nicotine is one of the major components of cigarette smoking which causes various systemic and local diseases to human body. The purpose of the present study was to investigate the effects of nicotine on bone mineralization in human fetal osteoblasts cell line(hFOB1). To compare the alkaline ph-osphatase(ALP) synthesis, hFOBl were cultured with DMEM/F-12 1:1 Mixture and 100 pg/ml, 1 ng/ml, 10 ng/ml, 100 ng/ml, 1 ${\mu}g$/ml, 10 ${\mu}g$/ml, 100 ${\mu}g$/ml of nicotine. And to compare the calcium accumulation, hFOB1 cultured for 23 days were quantified and photographed. ALP activity of hFOB1 exposed to nicotine was not significantly changed at a lower concentrations of nicotine, but was significantly decreased at a higher concentrations (10 ${\mu}g$/ml, 100 ${\mu}g$/ml) of nicotine (p<0.05). A quantified calcium acculation in hFOB1 was significantly decreased at 1,10, and 100${\mu}g$/ml of nicotine (p<0.05). Significantly decreased calcium deposition was observed at 1, 10, and 100${\mu}$/ml of nicotine. These results indicate that a higher concentration of nicotine show a negative effects on mineralization of hFOB1.

Incoterms$^{(R)}$ 2010의 근원과 일부 규정의 문제점에 관한 연구 (A Study on the Origin of the Incoterms and Regulation Problems of Some Rules in the Incoterms$^{(R)}$ 2010)

  • 오세창;박성호
    • 무역상무연구
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    • 제57권
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    • pp.35-60
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    • 2013
  • The Incoterms which is one of the most useful international instrument for sale of goods provides when a contract goods deliver, risk passes and how costs are allocated between seller and buyer on the contract as long as they agree to use a rule of the Incoterms rules. The Incoterms rules have come into effective to use for an international or domestic trade of goods since January 2011, which have been modified several times since these established by ICC in 1936. The origin of Incoterms rules may had been appeared from English traditional FOB terms that had been affected to American regulations for the sale of goods. The Incoterms rules which had been started from the traditional English FOB terms and American FOB terms have been expanded other trade terms, such as CIF. Although FOB is based on the COD(Cash on Delivery), it is possible replaced COD to CAD(Cash against Delivery) through the use of Bill of Lading and Letter of Credit in the international sale of goods between seller and buyer according to the development of infrastructures on the international commercial transactions. This article exercises the process of transition of the Incoterms rules, being based on the English and American traditional FOB contract form through review literatures, judical precedents and provisions. Then this article provides some feasible alternatives to attempting to resolve some regulation problems of FCA, CPT, CIP, and D-rules in the Incoterms$^{(R)}$ 2010.

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차량 사용자 인증 시스템을 위한 향상된 충돌 방지 알고리즘의 설계 및 구현 (The Design and Implementation of Improved Anti-Collision Algorithm for Vehicle User Authentication System)

  • 김경섭;이윤섭;최상방
    • 한국정보통신학회논문지
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    • 제17권1호
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    • pp.57-67
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    • 2013
  • 최근 자동차 산업이 눈부시게 발전하면서 운전자의 편의성과 안전성을 위해 차량에는 끊임없이 새로운 시스템이 적용되고 있다. 이러한 시스템은 다수의 FOB 키를 사용하기 때문에 사용자 인증 시 원활한 다중 접속을 위해 충돌방지 알고리즘을 적용시켜 사용하고 있다. 본 논문에서는 다수의 FOB 키를 사용하는 차량용 스마트키 시스템에서 동적으로 사용자 아이디 요청 순서를 최근 사용자 아이디로 변경하여 차후 인증 과정에서의 통신 응답 소요 시간을 획기적으로 감소시키는 향상된 충돌방지 알고리즘을 설계하고 구현하였다. 향상된 충돌방지 알고리즘이 적용된 시스템의 성능 평가를 위해 차량에 실제 장착하여 구현된 알고리즘의 동작을 확인하였고, 다수의 FOB 키에 대한 통신 응답 소요 시간을 측정하였을 때 기존 알고리즘에 비해 약 33% 정도 감소되었음을 검증하였다.

오미자 발효음료의 알코올 분해능과 Angiotensin Converting Enzyme 및 α-Glucosidase 저해효과 (Inhibitory Effects of Angiotensin Converting Enzyme and α-Glucosidase, and Alcohol Metabolizing Activity of Fermented Omija (Schizandra chinensis Baillon) Beverage)

  • 조은경;조혜은;최영주
    • 한국식품영양과학회지
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    • 제39권5호
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    • pp.655-661
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    • 2010
  • 전통발효식품의 기능성을 증명하기 위하여 경상남도 거창 농가로부터 구입한 오미자를 발효시켜 오미자 발효액을 제조하였으며, 여러 가지 생리활성에 대하여 조사하였다. 우선 오미자 발효액의 혈전분해능에 대해 분석한 결과, 혈전용 해제로 알려져 있는 plasmin보다 높은 활성을 나타내었다. 항고혈압 활성 측정 실험에서는 현재 시판되고 있는 항고혈압제인 captopril은 93.4%의 ACE 억제효과가 나타났고, 5배 희석한 오미자 발효액(20%)에서는 94.8%의 높은 저해활성을 나타내었다. 따라서 오미자 발효액은 인체에 부작용이 적은 천연 항고혈압소재로서 이용가능성이 높은 것으로 사료된다. 혈당 강하 효과를 조사하기 위하여 $\alpha$-amylase와 $\alpha$-glucosidase 활성억제 효과를 측정하였다. 오미자 발효액의 pancreatin $\alpha$-amylase에 대한 저해 효과를 검토한 결과 오미자 발효액 25%의 농도에서 7.4%의 저해효과가 나타났고 오미자 발효원액인 100%에서는 100%의 높은 $\alpha$-amylase 저해효과를 나타냈다. 따라서 오미자 발효액의 $\alpha$-amylase 저해활성은 우수한 것으로 판단된다. 또한 오미자 발효액의 $\alpha$-glucosidase 활성억제를 조사한 결과 30%의 농도에서 15.8%, 60%의 농도에서 49%의 저해활성을 나타냈다. 아질산염 소거능 측정 실험에서는 positive control인 Vit. C 0.1%의 경우 pH 1.2와 3.0에서는 61~76%, pH 6.0에서는 49%의 소거능을 보인 반면 오미자 발효원액(100%)의 경우 pH 1.2와 3.0에서는 72~96%, pH 6.0에서는 68%의 소거능을 나타내었다. 오미자 발효액의 숙취해소 효능은 ADH와 ALDH 활성증진에 오미자 발효액이 미치는 영향을 조사함으로써 증명하고자 하였다. 그 결과, 오미자 발효액은 acetaldehyde 분해능은 없는 반면, 알코올 분해능은 높게 나타났다. 이상의 결과들은 오미자 발효액의 우수한 기능성식품으로서의 이용 가능성에 대한 기초자료로 그 가치가 기대된다.

Properties of Chestnut Starches and Steamed Chestnuts with Different Pretreatment and Storage Conditions

  • Kim, Shin-Hye;Lee, Kyung-Sook;Suh, Dong-Soon;Lee, Young-Chun;Kim, Kwang-Ok
    • Food Science and Biotechnology
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    • 제17권3호
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    • pp.534-539
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    • 2008
  • This study investigated the effects of pretreatment and storage conditions on the properties of stored chestnuts. Effects on chestnuts of refrigerated storage (RNT) and frozen storage (FNT) with no pretreatment, frozen storage after oxalic acid treatment without blanching (FON) and with blanching (FOB) were examined. Water binding capacity, swelling power, solubility, and viscosity of the starch produced from RNT, FNT, and FON were similar to those of the starch produced from control (CON). FOB showed significant differences in these properties from CON. Textural properties of starch gels prepared from stored chestnuts except FOB also were very similar to those of CON starch gels. The sensory characteristics of steamed FON and FNT were similar to those of steamed CON except in brown color and hardness. Steamed FNT tended to have higher brown color and lower hardness than steamed FON. Steamed RNT showed significant differences in all the sensory properties except in hardness and cooked chestnut flavor. Steamed FOB was significantly higher than steamed CON in water release and off-flavor. Among the storage conditions examined, frozen storage with oxalic acid treatment is recommended for the long-term storage of chestnuts.

로테르담 규칙에서 FOB 계약의 매도인의 법적지위 문제 (Problems on the FOB Seller's Legal Status under the Rotterdam Rules)

  • 최명국
    • 무역상무연구
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    • 제65권
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    • pp.51-70
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    • 2015
  • The Rotterdam Rules are not phrased in favour of FOB seller's legal status. Whether it will be wise under the Rotterdam Rules to trade on the basis of cash against M/R largely depends on the interpretation of various provisions of the Rotterdam Rules. To protect his interests the M/R holder and his assigns must have a right of delivery of the cargo at the port of destination. The M/R holder and his assigns must be entitled to the bill of lading or at least be able to prevent the carrier from issuing the bill of lading to the shipper. Besides, any additional right of instruction on the part of the shipper must be blocked. Article 35 of the Rules entitles only the shipper to the bill of lading while 47 entitles only the holder of the bill of lading to delivery. When no bill of lading has been issued Article 45 grants to the shipper a right of instruction whereby the shipper is allowed to advise the carrier as to the name and the address of the consignee. I have suggested that by lack of a specific provision to the contrary the Rotterdam Rules have to be considered to be embedded in the system of law as a whole. From the Common Law it follows that a M/R holder, as owner of the cargo, can ask for delivery of the cargo. As owner of the cargo a M/R holder can also claim the bill of lading, if he does so in time, because it must be implied in the contract of carriage that the carrier must deliver the bill of lading to the owner of the goods. It is for the same reason that a M/R holder can prevent the carrier from issuing the bill of lading to any third party but the M/R holder and from taking instructions from the shipper as to name and address of a consignee other than the M/R holder.

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배양 치조골모세포의 생물학적 특성에 관한 연구 (Study on the Biological Characteristics of Cultured Osteoblasts Derived from Alveolar Bone)

  • 이용배;이성진;유석주;김성윤;신계철;김현아;유형근;신형식
    • Journal of Periodontal and Implant Science
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    • 제34권2호
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    • pp.317-332
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    • 2004
  • Osteoblasts from alveolar bone may have an important role in the bone regeneration for periodontium, but their culture and characterization are not determined yet. The purpose of this study was to investigate the biological characteristics of primary explant cultured osteoblasts(PECO) from alveolar bone. Osteoblasts were isolated and cultured from alveolar socket of extracted tooth in children. To compare the characteristics, osteoblasts and gingival fibroblasts were cultured with DMEM at $37^{\circ}C$, 5% $CO_2$, l00% humidity incubator, and human fetal osteoblasts cell line(hFOB1) were cultured with DMEM at $34^{\circ}C$, 5%, $CO_2$ 100% humidity incubator. To characterize the isolated bone cells, morphologic change, cell proliferation and differentiation were measured. Morphology of PECO was small round body or cuboidal shape on inverted microscope and was similar with hFOB1. PECO became polygonal shape with stellate and had an amorphous shape at 9th passage in culture. PECO had significantly higher activity than that of gingival fibroblasts and hFOB1 in alkaline phosphatase activity. The expression of osteocalcin and bone sialoprotein in PECO was notably increased when compared with hFOB1 and gingival fibroblasts. These result indicated that PECO from alveolar bone in children has an obvious characteristics of osteoblast, maybe applied for the regeneration of bone.

객혈 진단을 위한 CT와 가관지경의 역할 비교 (Comparison of the Role of CT and Fiberoptic Bronchoscopy in the Diagnosis of Hemoptysis)

  • 최규옥;김현숙;홍용국;서재승;류정아;양동규;김세규;장준;김성규;이원영
    • Tuberculosis and Respiratory Diseases
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    • 제47권2호
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    • pp.209-217
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    • 1999
  • 연구배경: 객혈의 원인을 찾기 위하여 CT의 진단 일치율을 알아보고, 기관지경 검사의 결과와 비교함으로써 두 방법의 진단 기여도를 알아보고자 한다. 대상 및 방법: 객혈을 주소로 내원한 환자 72명의 단순 흉부 촬영, CT, 기관지경 소견을 후향적으로 조사하였다. 폐암이 29명, 기관지확장증이 19명, 결핵이 12명, 아스페루길루스종이 5명, 그리고 기타 7명 이었다. 결과: 확진은 조직 검사 (n=33), 균 동정(n=6), 세포진검사 (n=3), 혈청 검사(n=2), 피부 반응 검사 (n=1), 결핵 혹은 폐렴 치료에 대한 반응(n=5)으로, 기도 질환 (n=22)은 고해상CT소견을 중심으로 진단하였다. 전체 72명의 객혈 환자들 중 병변 발견율은 CT, 기관지경이 각각 100%, 91,7% 이었고, 진단 일치율은 각각 95.8%, 59.7%였다. CT, 기관지경은 중심성 질환에서 각각 96.3%, 100%의 높은 진단 일치율을, 주변성 폐질환에서 각각 91.3%, 43.5%의 진단 일치율을 보였고, 기도 질환에서 각각 100%, 31.8% 의 진단 일치율을 보였다. 즉, CT는 객혈의 원인을 발견하는데 기관지경보다 높은 병변 발견율 진단 일치율을 보이며, 폐실질 혹은 기도 질환에서 더욱 유용하다. 기관지경은 생검과 조직 검사, 세포진 검사를 통하여 조직학적, 미생물학적 확진을 얻을 수 있는 것이 장점이다. 단순 흉부 촬영은 진단 발견율은 낮으나, CT와 기관지경 중 어느것을 먼저 선택할 것 인지와 CT 촬영 방법의 선택에 대한 지침을 줄 수 있다. 결론: 따라서 객혈 환자에서 단순 흉부 촬영상 중심성 기도질환 이외의 진단을 시사하거나, 정상 소견을 보일 경우 CT는 기관지경에 앞서 기본적인 검사 방법이 되어야 한다.

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속단의 dichloromethane 분획물이 태아골모세포의 골형성 유도에 미치는 효과 (Effects of Dichloromethane Fraction of Phlomidis Radix on Bone Formation in Human Fetal Osteoblasts)

  • 이영준;최희인;김윤철;신형식;유형근
    • Journal of Periodontal and Implant Science
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    • 제33권2호
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    • pp.259-269
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    • 2003
  • The ideal goal of periodontal therapy is the regeneration of periodontal tissue repair of function. Although is very difficult to attain the goal, recent advances in periodontal wound healing concepts encourage hope reaching it. Recently many efforts are concentrated on the regeneration potential of material used in traditional Korean medicine. Phlomidis Radix has been used for the treatment of blood stasis, bone fracture and osteoporosis in traditional Korean medicine. The purpose of this study is to examine effects of dichloromethane fraction Phlomidis Radix on Bone Formation in Human Fetal Osteoblasts. Human fetal osteoblastic cell line(hFOB1 1.19 ;American Type Culture Collection, Manassas, VA) were used and cells were cultured containing DMEM and dichloromethane fraction Phlomidis Radix(100 ng/ml , 1 ${\mu}$/ml, 10 ${\mu}$/ml) at 34$^{\circ}C$ with 5% $CO_2$ in 100% humidity. MTT was performed to examine the viability of the cell, and alkaline phosphatase activity was analyzed to examine the mineralization. Also bone calcification nodules were evaluated. The cellular activity of hFOB1 was increased in 100 ng/ml, 1 ${\mu}$/ml , 10 ${\mu}$/ml of dichloromethane fraction of Phlomidis Radix and especially significant increation was showed in 100 ng/ml of dichloromethane fraction of Phlomidis Radix at 6days (p <0.05). ALP level of hFOB1 was significantly increased in 100 ng/ml , 1 ${\mu}$/ml, 10 ${\mu}$/ml of dichloromethane fraction of Phlomidis Radix and especially more increation was showed in 10 ${\mu}$/ml of dichloromethane fraction of Phlomidis Radix (p <0,05). Calcification nodules of hFOB1 significantly increased in 10 ${\mu]$/ml of dichloromethane fraction of Phlomidis Radix at 21 days of incubation(p<0.05). The results indicate that dicholoromethane fraction of Phlomidis Radix has excellent effects on mineralization of hFOB1.