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      • 수평하중이 작용하는 단독말뚝의 허용수평지지력 결정 방법 제안

        배종순,김성호,순봉열,유은희 경상대학교 생산기술연구소 2003 工學硏究院論文集 Vol.19 No.-

        Great lateral forces arise commonly on retaining wall, piers and bulwark in harbours, bridge abutments and tower structure. Earth pressure dynamic forces(impact of ships), or wind pressure may be named as typical causes for these forces. This paper based on a series of model tests was performed to proposal the decision method of a allow lateral resistance of single pile under lateral load. Model tests were performed in changing of relative density. The model piles were made of copper tube, and the homogeneous model grounds were used air-dried fine sand enough to get through t.4 sieve. A summary test results were analyzed through the experiment as follows. The allow lateral resistance of the proposal method was larger than existing method as safety factor was applied two, that of the existing method was larger than proposal method as safety factor was applied three. But The allow lateral resistance was same to proposal method and existing method as safety factor was applied 2.5.

      • Thiocholine ester 기질을 이용한 Acetylcholinesterase 활성부위의 구조특성

        이천배,주은희,최수라,석대은,명평근 충남대학교 기초과학연구소 1999 忠南科學硏究誌 Vol.26 No.1

        The inhibition pattern of three inhibitors(tacrine, decamethonium and propidium) on the hydrolysis of various thiocholine ester substrates by eel acetylcholinesterase was comparatively examined. When the substrate was acetylthiocholine, it showed a similar competitive inhibition by tacrine inhibitor, and a mixed type inhibition by decamethonium and propidium inhibitors. When the substrate was pentanoylthiocholine, it showed an uncompetitive inhibition by tacrine, and a noncompetitive inhibition by decamethonium. When the substrate was laurylthiocholine, it showed mixed type and uncompetitive inhibition by tacrine, and a competitive inhibition by decamethonium and propidium. Those results suggest that the active site of acetylcholinesterase has the existence of hydrophobic site besides the anionic and esteratic site.

      • Thiocholine ester 기질을 이용한 Acetylcholinesterase 활성부위의 구조특성

        이천배,주은희,최수라,석대은,명평근 충남대학교 약학대학 의약품개발연구소 1999 藥學論文集 Vol.15 No.-

        The inhibition pattern of three inhibitors(tacrine, decamethonium and propidium) on the hydrolysis of various thiocholine ester substrates by eel acetylcholinesterase was comparatively examined. When the substrate was acetylthiocholine, it showed a similar competitive inhibition by tacrine inhibitor, and a mixed type inhibition by decamethonium and propidium inhibitors. When the substrate was pentanoylthiocholine, it showed an uncompetitive inhibition by tacrine, and a noncompetitive inhibition by decamethonium. When the substrate was laurylthiocholine, it showed mixed type and uncompetitive inhibition by tacrine, and a competitive inhibition by decamethonium and propidium. Those results suggest that the active of acetylcholinesterase has the existence of hydorphobic site besides the anionic and esteratic site.

      • KCI등재후보

        대학급식의 미생물적 품질보증을 위한 HACCP의 적용 : 참치샐러드 Tuna Salad

        김운주,최은희,최현미,배주희,채현숙 충북대학교 교육 ·생활연구소 생활과학연구센터 2002 생활과학연구논총 Vol.6 No.1

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        The purpose of this study was to evaluate the microbiological quality, and to assure the safety of the food production process in the university foodservice facilities in accordance with the Hazard Analysis Critical Control Point(HACCP) concepts. The kitchen layout and time-temperature relationship, miciobiological quality(total plate count, coliform) were assessed to identify the critical point during each of the production phases. The results were as follows: 1) The kitchen layout had to be improved because contamination area was not separated from non-contamination area, and work table was in contact with washing sink. 2) Some employee did not follow personal hygiene standards(hand washing), and did not wear proper working uniforms(hair restraints). 3) The production time of tuna salad was 120 min, and environment temperature was 20.1~26.0℃. Improper receiving temperature, inproper holding practices(without cover at room temperature) were observed. 4) In the purchasing phase of the raw materials, the microbiological quality of green pepper was not at acceptable level based on the TPC(2.3×10^6CFU/g)and coliform(>14,000 MPN/g). During washing phase TPC was decreased about 3 log cycle. After cutting and holding phase the level of TPC and coliform were increased rapidly. At serving phase the microbiological quality of tuna salad were not at acceptable level(TPC 3.3×10^6 CFU/g, coliform 11,000 MPN/g) according to the standard set(TPC <10^5 CFU/g, coliform <100 MPN/g) by Sorberg et al. 5) For tuna salad, critical control points were purchasing and receiving of fresh vegetables, washing, cutting, holding, mixing and serving phase.

      • 식품 기준·규격의 합리적 관리 ·운영에 관한 연구(Ⅰ) : 두부,식용유지, 전분의 분말상 원료에 관하여 Powdered marerials of Tofu, Edible oil, Starch

        김희연,홍진환,박혜경,한상배,박종석,이은주,이정성,송경희,최은희,최영준,소경아,성영제,이주엽 식품의약품안전청 2000 식품의약품안전청 연보 Vol.4 No.-

        본 연구는 분말상 원료(전분, 대두분)의 저장유통시 품질변화를 건전성과 안전성 측면에서 검토하여 식품의 기준 ·규격 설정f.」 합지적으로 반영하고자 하였다. 전분과 패두분의 이물을 검사하고, 2종 대두분(중국산, 미국산)을 ?0일간 IS'c와 30t에 저장하면서 성상, 수분, 산가, 과산화물가, 지방산 조성,아플라톡신 BB의 생성여부를 분석하였다. 중국산 대두분 30'』 저장군에서 50일 이후 곰팡이가 발생한 것 이외에 모든 시료에서 양호한 성상을 나타내었고, 전분과 대두닥 모든 시료에서 이물은 검출되지 않았다. 산가는 중국산과 미국산 시료간에 편차를 보여 증국산 30"C, 50일 저장시료에서 약 10배끙도 증가하였고, 과산화물가는 저장 90일후 15'E 저장군은 약 2.3배, 30'c 저장군은 3배정도 증가하였다. 대두분의 주요 지방산은 linoleic acidf18. 2), oleic acid(18 : 1), palmitic acid(16 : 0)이었으며, 3개월 저장에 따른 지방산 함량의 변화는 미미하였다. 아플라톡신 B₁은 모든 시료에서 검출되지 않았다. The objective of this study was to investigate auality changes of type raw materials(starch, soy flour) during various storage conditions. Starchflour(source of China, U.S.A) were slfred under two temperature(15'C, 30'c) forSensory evaluation, (o.reign material test, moisture content, acid value, peroxide ualue,composition, aflatorin Bi were analyzed. China soy flour(stor·ed 30'f) was contaminated by fungj on 50 days. Except for soy flour contardnated by fungi, sensory characteristics were not changed and foreign mater;als were notdetected. Acid value of China soy flour(stored at 30'C, 90 days) was about 10 times higherlevel before storage and acid value was more influenced by source(China, USA). Peroxide valuewas in proportion with the storage period slightly. The major fatty acid of soy flour waslinoleic acid(18 . 2), an(3 the change of fatty acid composition was not observed. Aflatoxlrl Blwas not detected.

      • SCIEKCI등재
      • SCIESCOPUSKCI등재

        Upregulation of Renin-angiotensin, Endothelin and C-type Natriuretic Peptide in Rat Glomerulus with Bilateral Ureteral Obstruction

        Eun Hui Bae,Soo Wan Kim 대한생리학회-대한약리학회 2006 The Korean Journal of Physiology & Pharmacology Vol.10 No.6

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        The present study was designed to investigate the effects renin-angiotensin-aldosterone system (RAAS), endothelin (ET) and local natriuretic peptide (NP) system for glomerulopathy induced in the experimental bilateral ureteral obstructive rats. Sprague-Dawley male rats (200∼220 g body weight) were bilaterally obstructed by ligation of the proximal ureters for 24 hours. Control rats were treated in the same ways, except that no ligature was made. The glomeruli were isolated from cortex by graded sieve methods, and the mRNA expressions of local renin-angiotensin system (RAS), aldosterone synthase (CYP11B2), endothelin-1 (ET-1) and NP system were determined by real- time polymerase chain reaction. Following the bilateral ureteral obstruction, the mRNA expressions of renin, angiotensin converting enzyme 1 as well as ET-1 were increased, while that of angiotensin converting enzyme 2 was not changed. The expressions of CYP11B2 and angiotensin II receptors were not changed. C-type natriuretic peptide (CNP) expression was increased, while its receptors (natriuretic peptide receptor-B) were not changed. We suggest that the upregulation of local RAS and ET play a role in the progressive glomerular injury, and that the enhanced CNP activity also plays a compensatory role in obstructive uropathy in the glomerulus.

      • SCIESCOPUSKCI등재

        Changes of Atrial Natriuretic Peptide System in Rats with Puromycin Aminonucleoside-Induced Nephrotic Syndrome

        Eun Hui Bae,JongUn Lee,Seong Kwon Ma,Soo Wan Kim 대한생리학회-대한약리학회 2009 The Korean Journal of Physiology & Pharmacology Vol.13 No.1

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        Sodium retention is a hallmark of nephrotic syndrome. We investigated whether sodium retention is associated with changes of natriuretic peptide system at different stages (i.e., a sodium retaining stage and a compensatory stage) of nephrotic syndrome. At day 7 after PAN (puromycin aminonucleoside) injection, the urinary excretion of sodium was decreased, along with the development of ascites and positive sodium balance. The plasma and urinary ANP (atrial natriuretic peptide) immunoreactivities were increased. ANP mRNA expression was increased in the heart and kidney, whereas that of NPR (natriuretic peptide receptor)-A and NPR-C mRNA was decreased in the kidney. The expression of NEP was decreased in the kidney. At day 14, urinary excretion of sodium did not differ from the control. The plasma ANP level and heart ANP mRNA expression returned to their control values. The expression of ANP mRNA in the kidney was increased in association with increased urinary ANP immunoreactivities. The expression of NPR-A in the kidney became normal, whereas that of NPR-C kept decreased. The expression of NEP (neutral endopeptidase) remained decreased. These findings suggest that the increased renal ANP synthesis in association with decreased metabolism via NEP and NPR-C may play a compensatory role against the development of sodium retention in nephrotic syndrome. The decreased of NPR-A expression in the kidney may contribute to the ANP resistance at day 7. The subsequent recovery of NPR-A expression may play a role in promoting sodium excretion in later stage (at day 14).

      • SCOPUSKCI등재
      • SCIESCOPUSKCI등재

        Changes in Endothelin Receptor Type B and Neuronal Nitric Oxide Synthase in Puromycin Aminonucleoside-Induced Nephrotic Syndrome

        Eun Hui Bae,Soo Wan Kim 대한생리학회-대한약리학회 2010 The Korean Journal of Physiology & Pharmacology Vol.14 No.4

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        The collecting duct endothelin (ET) system, which involves ET-1 and its two receptors, may play a role in the regulation of renal sodium in association with the nitric oxide synthase (NOS) system. We determined whether sodium retention is associated with changes in the endothelin and NOS systems at different stages (i.e., a sodium retaining stage and a compensatory stage) of nephrotic syndromes. On day 7 after puromycin aminonucleoside (PAN) injection, urinary sodium excretion was decreased, ascites had developed, and there was a positive sodium balance. ET-1 mRNA expression was increased in the inner medulla of the kidney, whereas protein expression of ET receptor type B (ET<sub>B</sub>R) was unchanged. The expression of neuronal NOS (nNOS) was decreased in the inner medulla. On day 14, urinary sodium excretion was unchanged compared with controls. The expression of ET<sub>B</sub>R increased, while nNOS expression in the inner medulla was comparable to controls. These findings suggest that decreased nNOS plays a role in the development of sodium retention in the nephrotic syndrome. Recovery of nNOS and increased renal ET<sub>B</sub>R synthesis may promote sodium excretion in later stages of the nephrotic syndrome (on day 14).

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