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      • 지역 문화축제 평가 : 안동국제탈춤페스티발을 중심으로

        蔡源互,孫鎬重 嶺南大學校社會科學硏究所 2003 社會科學硏究 Vol.23 No.1

        축제는 사회공동체의 구성원들이 수세대에 걸쳐 축적한 고유의식을 표출하는 연례적이고 의식적인 성격이 강한 반면, 최근 신설된 지역문화축제는 지역경제 활성화 전략으로 강조되고 있다. 그러나 지방정부 주도로 치루어지고 있는 지역문화축제는 지나치게 상업화되어 있으며, 심지어 단체장의 정치적 입지 구축을 위해서 치루어지는 경우도 있어 축제의 관변화가 문제되고 있다. 본 연구에서는 이와 같은 문제 제기를 바탕으로 최근 행정학에서 주된 관심의 대상이 되고 있는 지역문화축제 중 안동국제탈춤페스티벌을 사례로 지역주민이 얼마나 지역의 문화정책에 참여하여, 역할을 하고 있는지 그리고 지방자치단체는 이러한 외부자원을 얼마나 유효 적절하게 이용하고 있으며, 그들의 견해들이 구체적 정책 집행에 있어 반영이 되고 있는지를 밝혀내고자 하였다.

      • 상아질 접착제가 상아질 변연누출에 미치는 영향

        채수경,김미자,이광원,손호현 全北大學校 齒醫學硏究所 1991 전북치대논문집 Vol.9 No.1

        The purpose of this study was to evaluate the effect of various dentin adhesives on the incisal and gingival marginal leakage of class Ⅴ cavity. V-shape cavities with enamel bevel (0.7-1㎜) were prepared on the faciocervical area of 72 extracted human anterior teeth. Gingival margin of cavities was placed on dentin or cementum. Including 1 group with no dentin treatment, they were divided into 6 groups according to dentin surface treatment with Scotchprep(3M Co.), Prisma Universal Bond 2(Dentsply Inter. Inc.), Gluma(Cloumbus/Bayer), All BOND 2(Bisco inc.) and Denthesive(Kulzer Co.). After dentin treatment, Dentin adhesive(3M Co.) was applied on the treated dentin surface and Silux("U" shade, 3M Co.) was filled and polished. Dye penetration technique using 2% methylene blue solution was adopted to assess incisal and gingival marginal leakage. The following results were obtained 1. The degree of incisal marginal leakage in the non-treated group was greater than that in other groups(p<0.01), and incisal marginal leakage in the groups treated with All BOND 2, and Denthesive was less than that in the group treated with Gluma(P<0.01). 2. Incisal marginal leakage in the groups treated with Prisma Universal Bond 2, and Scotchprep was less than that in the group treated with Gluma(p<0.01). 3. Incisal marginal leakage among the groups treated with Scotchprep, Prisma Universal Bond 2, All BOND 2 and Denthesive was not different(p>0.05). 4. The degree of gingival marginal leakage in the non-treated group was significantly greater than that in other groups(p<0.01). 5. Gingival marginal leakage among the groups treated with Scotchprep, Prisma Universal Bond 2, Gluma, All BOND 2, and Denthesive was not statistically significant(p>0.05). But gingival marginal leakage was significantly less in the All BOND 2 treated group compared with Gluma treated group(p<0.05).

      • 음원방향 추정법의 성능평가

        이채봉,홍태호 東西大學校 1997 동서논문집 Vol.3 No.1

        In this paper describes the optimum beamforming algorithm when it estimates source signal localization. It is proposed many methods for the identification of a sound source localization. But in this study, This paper compares and investigates the angle resolution and sharp peak value by the simulation. The simulation perform to each of DSA(Delay Sum Arry), MV(Minimum Variance), MUSIC(MUltiple SIgnal Classification) method when signals with two or three frequency exist. In result, the MUSIC method has excellent angle resolution and sharp peak value in estimating the direction of arrival signals at each microphone for arbitrary direction of the sound source singnal.

      • Trimethoprim 중간체의 합성에 관한 연구(II) : Diethyl 3,4,5-trimethoxybenzylmalonate의 합성 The Synthesis of Diethyl 3,4,5-trimethexybenzylmalonate

        李寀浩,李英行 圓光大學校 1982 論文集 Vol.16 No.2

        Trimethoprim은 그람음성균과 변형균에 대하여 광범위한 항균력을 가진다. Trimethoprim은 흔히 3,4,5-trimethoxybenzaldelyde를 출발물질로 사용하여 합성되며 그 합성자체가 복잡하고 어려운 점이 많다. 이러한 어려운 점을 피하기 위하여 3,4,5-trimethoxybenzoic acid를 출발물질로 사용하였으며 그의 acid chloride와 ethyl cyanoacetate나 diethyl malonate를 축합시켜서 Trimethoprim의 중간체인 diethyl 3,4,5-trimethoxybenzolymalonate와 diethyl 3,4,5-trimethoxybenzylmalonate를 합성하였다. Trimethoprim has a moderately broad antibacterial spectrum which includes many of the gram-negative species. This compound has always been synthesized starting from 3,4,5-trimethoxy benzaldebyde, but the synthesis of the starting material itself were very complicated and tedious. To avoid these difficulties, we used 3,4,5-trimethoxybenzoic acid as starting material and attempted to condense ethyl cyanoacetate and diethyl malonate with 3,4,5-trimethoxybenzoyl chloride. As a result, the intermediates for the synthesis of trimethoprim, diethyl 3,4,5-trimethoxybenzoylmalonate and diethyl 3,4,5-trimethoxybenzylmalonate were synthesized.

      • 1,4,5,6-Tetrahydro-1-methyl-2-styrylpyrimidine의 합성에 관한 연구

        李寀浩,鄭在奎 圓光大學校 基礎自然科學硏究所 1983 基礎科學硏究誌 Vol.2 No.1

        Broad-spectrum anthelmintic activity has been discovered in a series of tetrahydropyrimidines substituted variousely at the 2-position by 2-arylethy1 or 2-arylviny1 group. These anthelmintic agents were prepared starting from the corresponding arylaldehyde. 1,4,5,6-Tetrahydro-1-methy1-2styrylpyrimidine which is the simplest in a series of tetrahydropyrimidines was prepared starting from benzoy1 chloride, instead of benzaldehyde.

      • L-N-Benzylaspartic acid의 선택적 에스테르화 반응

        이채호,김일광,박승화,이영행,정봉영 圓光大學校 基礎自然科學硏究所 1987 基礎科學硏究誌 Vol.6 No.1

        Selective esterification and synthesis of L-N-benzylaspartic acid from L-aspartic acid are described. L-Aspartic acid was transformed into dibenzyl L-asparate p-toluenesulfonate, which was treated with sodium bicarbonate to afford dibenazyl L-asparate. Formation of Schiff base of dibenayl ester with benzaldehyde and subsequent hydrogenation-dehydrogenation of the Schiff base produced L-N-benaylaspartic acid. L-N-Benaylaspartic adcid was transformed into L-N-benzylaspartic anhydride hydrogen bromide, which was treated with methyl alcohol and benzyl alcohol to afford a-methyl and a-benzyl L-N-benzylaspartate and L-N-benaylaspartic acid was transformed into L-N-benaylaspartic acid copper(Ⅱ) salt, which was treated with N,N,N,N-tetramethylguanidine and benzyl bromide to afford β-benzylaspartate

      • 晋州·泗川地方 兒童 및 學生의 腸內原蟲感染率 調査報告

        張在薰,曺載浩,金載翊 최신의학사 1968 最新醫學 Vol.11 No.5

        The prevalence of intestinal protozoa infection at Chinjoo and Sachon area was surveyed by the method of simple direct smear of feces during autumn, 1967. The result of the survey is as follows: of 650 school children, 579 junior high school boys at Chinjoo and 347 school children at Sachon the prevalence of Entamoeba histolytica was 1.2^2.6 %, Entamoeba coli 6.49.50, Endolimax nana 2.0^2.9%, Giardia lamblia 2.3^4.3%, Chilomastix mesnili 00.2%, and Iodamoeba butschlii was 0.2^0.6%.

      • 3-Imino-1,2,5-thiadiazolidine 1,1-Dioxide 유도체의 산화 반응

        이채호 圓光大學校 基礎自然科學硏究所 1995 基礎科學硏究誌 Vol.14 No.1

        DMF내에서 4-Aryl-3-imino-1,2,5-thiadiazole 1,1-dioxides와 과량의 에톡시화 나트륨의 반응으로부터 4-aryl-3-imino-1,2,5-thiadiazolidine 1,1-dioxides를 얻었다. 4-Aryl-3-imino-1,2,5-thiadiazole 1,1-dioxides were obtained from 4-aryl-3-imino-1,2,5-thiadiazolidine 1,1-dioxides with excess sodium ethoxide in DMF.

      • 2,4-Diamino-5-(3´, 4´, 5´-trimethoxybenzyl) pyrimidine의 합성에 관한 연구

        李寀浩 圓光大學校 基礎自然科學硏究所 1984 基礎科學硏究誌 Vol.3 No.1

        The reactions of β-morpholino-α-3,4,5-trimethoxybenzylacrylonitrile with p-substituted aniline followed by cyclization affored 2,4-diamino-5-(3', 4', 5'-trimethoxybenzyl) pyrimidine in 85∼95% overall yield.

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