• Title/Summary/Keyword: E171

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Physicochemical Properties of Commercial Salrt-Fermented Shrimp (시판 새우젓의 이화학적 특성)

  • 황종현;김진만
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.30 no.4
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    • pp.760-763
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    • 2001
  • Five commercial salt-fermented shrimps contained 29.8~48.3% of salt 3.5%~7.3% of total nitrogen and 0.3~0.7g/100g of amino-nitrogen respectively. The average peptide length(APL) of five commercial salt-fermented shrimps ranged from 10.1 to 15.0. Sample B and E showed longer APL than the others with the values of 15.0 and 14.4 respectively. Protease activity showed the large differences in five samples from 17 unit to 232 unit ; sample C showed the highest protease activity with 232 unit while sample D and E were relatively lower with 17 unit and 18 unit respectively. The chitinase activities which can hydrolyze chitin the one of components on outer layer of shrimp ranged from 14.4 unit to 171 unit. Sample E had the highest chitinase activity as 171 unit but sample B showed the lowest activity with 14.4 unit. Chitooligosaccharides of five commercial salted-fermented shrimps were consisted of monoglucosamine diglucosamine and triglucosamine.

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신규베타락탐계 항생제 합성과 항균성

  • 고옥현;김경수;하재천;고봉석
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1994.04a
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    • pp.171-171
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    • 1994
  • Cephem ring의 C-7위치에 aminothiazoly lmethoxyimino기를 가진 화합물들이 항균활성을 증가시키고, G(-)균의 외막투과성을 촉진시킬뿐 아니라 광범위항균 spectrum을 갖게 하고 $\beta$-lactamase에 안정하며 PBP(penicillin binding protein)에 대한 결합친화성을 증가시킨다는 보고에 따라 본 저자는 C-7위치에 cefotaxime구조와 같이 aminothiazolylmethoxyimino acetamido moiety를 고정시키고 항균활성을 증가시키기 위하여 약리활성이 기대되는 5-(substituted)-2H-tetrazole유도체들을 합성하여 C-3 위치에 도입시킨 새로운 화합물 7$\beta$-〔(z)-2-(2-aminothiazol-4-yl)-2_(methoxyimino)acetamido〕-3-〔5-(substituted)tetrazol-2-yl〕 methyl-3-cephem-4-carboxylic acid 유도체를 합성하여 B. subtilis ATCC 6633, M. luteus ATCC 1004, E. coli KCTC 1039, E. coli ESS, K. pncumonia KCTC 1560, P. aeruginosa IF0 13130, S. typhimurium KCTC 1925, S. typhimurium SL 1102, 및 C. albicans ATCC 10231 등의 균과 fungus에 대하여 기존의 cefotaxime과 cefazoline을 대조물질로 사용하여 항균력을 비교하였다. 이들 화합물들은 대체적으로 M. luteus ATCC 6633, E. coli ESS, S. typhimurium SL 1102 균에 대해서는 cefotaxime보다 항균력이 우수하였으나 P. aeruginosa IF0 13130에 대해서는 항균력이 저하되었고 cefazolin보다는 대체적으로 항균력이 우수하였다.

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Surface bonding pad design for universal wire bonding(Au ball bonding + Al wedge bonding) (Universal wire bonding(Au ball bonding + Al wedge bonding)을 위한 표층 전극 구조 설계)

  • Sung, Je-Hong;Kim, Jin-Wuan;Choi, Yun-Huek
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2008.11a
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    • pp.171-171
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    • 2008
  • 본 연구는 초음파 알루미늄 웨지 및 금 볼 본딩을 동시에 적용 가능한 본딩 Pad의 금속학적 안정성을 고려한 표층전극 형성 방법에 관한 것이다. 특히, 이동통신 및 전장용 모듈의 복합 및 융합화로 LTCC기판 패키징에 있어서 다양한 본딩 기술이 요구되고 있다. 전통적인 interconnection 기술인 Au ball 본딩 및 초음파 에너지를 이용한 Al wedge 본딩 기술이 동시에 사용되어야 하는 패키지 구조의 경우 본딩 패드의 표층전극 설계는 서로 상충되는 조건이 요구된다. 따라서, 본 연구에서는 LTCC기판의 표층전극의 Metal finish 방법으로 이용되는 ENEPIG(무전해 Ni/Pd/Au도금)공법으로 Au ball 본딩 및 초음파 Al wedge 본딩을 동시에 가능하게 하는 solution을 제시하여 패키징 자유도뿐만 아니라 Interconnection 신뢰성을 확보할 수 있었다.

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An Implementation and Evaluation of Virtual Colored Overlay for Dyslexic Learning Disorder (난독증 학습장애인을 위한 가상 색 오버레이 구현과 평가)

  • Choi, Hoon-Il;Jang, Young-Gun
    • Proceedings of the Korea Information Processing Society Conference
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    • 2008.05a
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    • pp.171-174
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    • 2008
  • 난독증 학습장애를 일으키는 주요 증상인 광과민성증후군을 완화시키는 보조도구로써 컴퓨터에서 사용할 수 있는 가상 색 오버레이를 구현하고 사용성을 평가하였다. 구현 결과를 한글 문서, e-book, 웹 문서 및 동영상에 적용한 결과 한글 문서나, e-book에서는 적용에 문제가 없었으나, 링크와 텍스트 박스를 다수 포함하는 웹 문서나 그래픽 객체를 마우스로 드래그해야 하는 게임 응용과 동영상 적용에서는 보완이 요구된다. 본 연구에서 개발된 도구는 난독증 학습장애인이 일반 전자문서와 e-book을 위주로 한 컴퓨터 학습에 사용할 수 있다.

Effects of Diethyl Phthalate on Acetylcholinesterase Activity in Olive Flounder (Paralichthys olivaceus) Following Short-term Exposure

  • Jee Jung-Hoon;Keum Yoo-Hwa;Kang Ju-Chan
    • Fisheries and Aquatic Sciences
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    • v.7 no.3
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    • pp.171-173
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    • 2004
  • Activity of acetylcholinesterase (AChE) is well known as a biomarker of exposure to organophosphate compounds in aquatic organisms. However, the effect of diethyl phthalate (DEP), a widely used plasticizer, on the chance of AChE activity is not yet known. Olive flounder (Paralichthys olivaceus) were exposed to DEP 300 and 1,000 mg DEP/kg b.w. through three times of intraperitoneal injection and effects were assessed in AChE activity of brain, muscle, heart and eyes of the exposed fish. AChE activity in various tissues of flounder was inhibited after exposure to DEP as a concentration-dependent manner, especially in brain, muscle and heart. Among tissues examined, heart is supposed to be a major part of body which is seriously damaged by DEP exposure. It indicates that DEP induces toxic effects in various organs (brain, muscle and heart), and changes of AChE activities. Such changed activities of AChE might be a useful biomarker to assess the impacts induced by phthalate esters including DEP.

Evaluation of Pressure, Subjective Wearing Comfort and Design Preference of Brassiere Shoulder Strap Models (브래지어 어깨끈의 디자인에 따른 압력과 주관적 평가)

  • Park, Soyoung;Hong, Kyunghi;Lee, Yejin
    • Fashion & Textile Research Journal
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    • v.21 no.2
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    • pp.171-178
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    • 2019
  • This study analyzed the pressure, subjective wearing comfort, and design preference of brassiere shoulder straps among women in their 20s and 40s. Experimental clothing was made by different shoulder strap designs on a brassiere. In the four designs (A-D), the front attachment points of the shoulder straps were the same, but the back attachment points were different. Three of them (E, E1, E2) were of a halter neck design, with different front attachment positions. The pressures of A-D were measured at the position passing through the shoulder line (P1), and E-E2 was measured at the back neck (P2) as well as at P1. Subjective wearing comfort and design preference were rated on a 7-point Likert scale. A was determined to exert the highest pressure at the neck side of the design in the pressure measurement analysis of A-E2, whereas E1 exerted the lowest. E was measured to have the highest pressure among the E-E2 designs, whereas E2 had the lowest. Participants preferred A the most and E the least in regards to the subjective wearing comfort of A-E. Thus, participants deem A to be the most comfortable despite the high strap pressure. However, E was the most favored design, despite its poor wearing comfort. Participants' subjective impressions of E-E2 were that E2 was the most uncomfortable, but its design was the most preferred. Consumers' design preferences and subjective impressions of wearing comfort did not match.