• 제목/요약/키워드: AIP1

검색결과 75건 처리시간 0.023초

반복되는 복통과 고혈압을 동반한 급성 간헐성 포르피린증 1예 (Acute Intermittent Porphyria Presented with Recurrent Abdominal Pain and Hypertension)

  • 박미란;서정기;고재성;장주영;양혜란
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • 제14권1호
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    • pp.81-85
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    • 2011
  • 16세 여아에서 복통, 구토, 고혈압, 경련 및 고지혈증을 보였던 급성 간헐성 포르피린증 1예를 경험하였기에 보고하는 바이다. 소아에서 원인을 알 수 없는 복통에 고혈압, 경련 등 특징적 포르피리아 증상이 동반된 경우에 반드시 급성 간헐성 포르피린증을 고려해야 한다.

Antitumor and Immunomodulating Activities of the Polysaccharide Fractions from Artemisia selengensis and Artemisia iwayomogi

  • Koo, Kyoung-Ah;Kwak, Jong-Hwan;Lee, Kang-Ro;Zee, Ok-Pyo;Woo, Eun-Rhan;Park, Ho-Kun;Youn, Hyun-Joo
    • Archives of Pharmacal Research
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    • 제17권5호
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    • pp.371-374
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    • 1994
  • Effects of the polysaccharide fractions purified from Artemisia selengensis and Artemisia iwayomogi on the immune system was studied. The polysaccharide fractions, respectively called ASP1 and AIP1, may interact with macrophages and lymphocytes in spleen, increasing the population of those cell types in vivo and in vitro. Both ASP1 and AIP1 fractions also syuppress transplanted tumor cell growth and augment antibody production. This study suggests that ASP1 and AIP1 fractios may have immunomodulating and antitumor activities.

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잠수함 및 어뢰의 추진체계 현황 1

  • 공영경
    • 전기의세계
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    • 제43권7호
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    • pp.7-22
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    • 1994
  • 잠수함추진방식은 크게 원자력 추진과 재래식 추진으로 나눌수 있다. 최근에는 재래식 추진방식과 하이브리드 개념으로 운용될 수 있는 AIP(air independent propulsion)방식도 활발히 연구되고 있다. AIP 추진으로는 폐회로 디젤기관추진(closed cycle diesel engine propulsion), 연료 전지추진(fuel cell propulsion) 스터링기관추진(stirling engine propulsion) 및 폐회로터빈추진(closed cycle turbine propulsion)등이 있다. 이러한 잠수함 추진체계에 대해 앞으로 크게 세부분으로 나누어 그 현황과 발전추세를 살펴보고자 한다.

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AIP 모델을 응용한 균형적 공항 슬롯 배정 모델에 관한 연구 -인천국제공항 사례 연구- (A Study on Balanced Airport Slot Allocation Model Applying AIP Model -Focused on Incheon International Airport-)

  • 박학순;김기웅
    • 한국항공운항학회지
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    • 제26권1호
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    • pp.25-36
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    • 2018
  • This paper presents a new airport slot allocation model that uses AIP model to balance the use of airport slots within existing capacity based on the limitation of capacity expansion of airport slots. This new model is called a 'balanced airport slot allocation model', which integrates the airport facility usage system, which is applied independently without linkage, with the airport slot allocation system, introducing the market logical characteristic of 'administered incentive pricing. In this paper, we propose a new proposal to dramatically change the airport slot allocation system in the current situation where the expansion of facilities is limited in the urgent problem of the airport slot shortage, and it is necessary to balance the airport slot allocation. Airline paying for the use of an airport slot can determine the slot of the desired time slot based on the costs incurred by differentiating in the new airport slot allocation model. This is a system that allows the airlines that are willing to pay a lot of money in the market to use preferred airport slots.

멀티레이트 서비스를 지원하는 VSG-DS/C음 시스템에서의 PN 시퀀스 상관 파라미터 특성과 최적화 (The Correlation Parameters and the Optimization of a PN Sequence Phase for Variable Spreading Gain (VSG) Multi-Rate DS/CDMA System)

  • 이연우;김응배;차균현
    • 한국통신학회논문지
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    • 제25권1A호
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    • pp.10-17
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    • 2000
  • 본 논문에서는 가변 확산이득 (VSG) 구조를 갖는 멀티미디어 멀티레이트 DS/CDMA 시스템에서 PN 시퀀스의 위상에 따른 상관 특성을 보였고, 시퀀스 위상을 최적화 하였다. 멀티레이트 VSG-DS/CDMA 시스템의 경우에 시퀀스의 최적화는 동일 길이의 시퀀스들과는 물론, 다른 확산 이득을 갖는 다른 시퀀스들에 대해서 동시에 이루어져야 하므로 시퀀스의 최적화가 쉽지 않다. 따라서, 본 논문에서는 이러한 멀티레이트 시스템에서의 시퀀스 상관 특성을 살펴보았고, 이를 통해서 비트 오율을 최소화 시킬 수 있는 시퀀스 선택기준으로 MIN-AIP를 제시하였다. m 시퀀스와 Gold 시퀀스에 대한 성능분석 결과, MIN-AIP 기준에 의한 시퀀스 초기 위상의 선택기준이 성능을 가장 향상시킬 수 있는 최적의 선택기준이라는 결론을 얻을 수 있었다.

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Artemisia속 생약의 다당류 분획 연구 (I) (The Polysaccharide Fraction of Artemisia Species(I))

  • 이강노;지옥표;곽종환;김영식;박호군;구경아;윤현주
    • 생약학회지
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    • 제24권4호
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    • pp.289-295
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    • 1993
  • Polysaccharides fractions from the leaves of Artemisia selengensis$(ASP_1)$ and Artemisia iwayomogi$(ASP_1)$ were extracted and purified by Sephadex gel filtration and DEAE-Sephadex ion exchange chromatographies. Both $ASP_1$ and $AIP_1$ fractions were tested for their effects on the spleen cell culture in vitro. Both $ASP_1$ and $AIP_1$ fractions allow growth of spleen cells up to 3 months in culture, suggesting the immunoregulatory activities of those polysaccharide fractions. The molecular weights of $ASP_1$ and $ASI_1$ fractions were found to be about 2,500 daltons by Sephadex gel filtration chromatography using standard dextrans. Both $ASP_1$ and $AIP_1$ fractions were composed of glucose, xylose and galactose.

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AIP-TiN/WC-Co계에서 WC입자크기와 Co함량이 밀착력에 미치는 영향 (Effect of the WC particle size and Co content on the adhesion property between AIP-TiN coating and WC-Co substrate)

  • 한대석;류정민;권식철;김광호
    • 한국표면공학회지
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    • 제35권3호
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    • pp.165-171
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    • 2002
  • TiN coating were deposited onto different WC-Co substrates using arc ion plating (AIP) technique. The structure and morphology for the deposited coating were characterized by x-ray diffraction (XRD) and scanning electron microscopy (SEM). The adhesion behavior of the deposited TiN coating was investigated with a conventional scratch test. Effects of WC particle size and Co content on the adhesion strength between the deposited TiN coating and substrate were studied. During the scratch test, the value of critical load was dependent of WC particle size and Co content on substrate. As the WC particle size and Co content on substrate decreased, the critical load increased. The highest critical load, approximately 110N, was obtained at WC particle size of 1$\mu\textrm{m}$ and Co content of 10wt.%.

Physicochemical Properties and Intestinal Bacterial Growth-Promoting Effect of Cell-Wall Polysaccharides from Cucumber Peel

  • Jun, Hyun-Il;Song, Geun-Seoup;Lee, Young-Tack;Kim, Young-Soo
    • Food Science and Biotechnology
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    • 제14권3호
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    • pp.375-379
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    • 2005
  • Physicochemical properties, intestinal microbial growth, and inhibitory effects of alcohol-insoluble polysaccharide (AIP) extracted from cucumber peel were investigated. AIP was composed of 14.54% crude protein, 1.04% crude lipid, 13.74 % crude ash, 9.1% soluble dietary fiber, and 41.2% insoluble dietary fiber. AIP showed low bulk density (0.18 g/mL) and water-holding capacity (6.39 g/g), and high oil-holding capacity (3.96 g/g). Pectic substance fractions [water-soluble pectic substance (WSP), ethylenediaminetetraacetic acid-soluble pectic substance (ESP), and alkali-soluble pectic substances (ASP)] and hemicellulose fractions [1 M KOH-soluble hemicellulose (KHP1) and 4 M KOH-soluble hemicellulose (KHP4)] were obtained from sequential chemical fractionation of AIP. WSP showed higher total sugar contents than total uronic acid contents, whereas opposite results were observed in ESP and ASP. Molecular weight distributions of three pectic substance fractions were in order of ASP>ESP>WSP. Ion exchange chromatogram pattern of WSP was different from those of ESP and ASP. Major component of WSP was fraction eluted by 0.05 M ammonium acetate buffer, whereas that of ESP and ASP was fraction eluted by 0.2 M NaOH. WSP and ASP showed growth-promoting activities against Lactobacillus brevis, Bifidobacterium bifidum, and B. longum, whereas B. bifidum and B. longum for ESP. KHP1 and KHP4 fractions had significant growth-promoting activities against B. bifidum.

AIP면 유동측정 정확도 향상을 위한 가스터빈엔진 입구덕트 설계 연구 (Design Study of Engine Inlet Duct for Measurement Improvement of the Flow Properties on AIP)

  • 임주현;김성돈;김용련
    • 한국추진공학회지
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    • 제21권3호
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    • pp.49-55
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    • 2017
  • 가스터빈엔진의 성능시험을 위한 엔진 입구덕트를 1D 기법으로 Sizing 하였으며, 압축기 입구유동측정면(AIP, Aerodynamic interface plane)에서 경계층 두께를 최소화하고, 코어부 마하수분포가 균일하도록 설계하였다. 노즈콘 형상은 Haack-series 모델을 적용하고, 덕트 안쪽과 바깥쪽 면적변화율이 동일하도록 입구덕트 채널 바깥반경($r_o$)를 결정하여 설계목적을 구현하고자 하였으며, 이러한 형상이 설계목표에 부합하는지 확인하기 위하여 CFD를 수행하였다. AIP면에서 정압력분포는 최대값과 최소값 차이가 0.16% 이었으며, 마하수분포에서 경계층은 덕트반경 길의 2% 이내로 설계목표를 만족하였다. 이때 균일유동 코어부는 채널높이의 95% 이상이었다. 또한 입구유동의 전온도를 측정하기 위한 키엘 전 온도레이크 위치는 온도 회복계수가 최대화 되도록 마하수가 0.1 이하 지역인 노즈콘 전방 100 mm 이내이어야 함을 확인하였다.

열다한소탕(熱多寒少湯)이 간기능에 미치는 영향 (The Effects of Constant Use of Yeoldahanso-tang on Liver Function)

  • 김태환;홍솔이;한다님;임은철
    • 사상체질의학회지
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    • 제19권3호
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    • pp.217-226
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    • 2007
  • 1. Objectives The purpose of this study was to evaluate whether use of Yeoldahanso-tang(熱多寒少湯) may injure the liver function. We clinically studied the change of liver function rest in patients who were admitted in Dongseo Oriental Medical Hospital. 2. Methods We analyzed rhe serum alkaline phosphatase(AIP), aspartate aminotransferase(AST), alanine aminotransferase(ALT), ${\gamma}$-glutamyl transpeptidase(${\gamma}$-GT), total bilirubin of 25 patients from 1st. July. 2004 to 15th. October. 2007 admitted in Dongseo Oriental Medical Hospital. Liver function test were done on admission and before discharge. 3. Results For most patients, the values of AIP, AST, ALT, ${\gamma}$-GT and total bilirubin were within normal range or decreased. 4. Conclusions This study suggests that Yeoldahanso-tang(熱多寒少湯) does not injure liver function of human.

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