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RISS 인기검색어
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- 저자 : 강석구(KANG, Seok Ku) (검색결과 197 건)
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도재 라미네이트의 두께의 따른 레진 시멘트의 표면경도에 관한 연구
강석구,동진근,진태호,Kang Seok-Koo,Dong Jin-Keun,Jin Tai-Ho 대한치과보철학회 1993 대한치과보철학회지 Vol.31 No.4
The purpose of this study was to evaluate the effect of porcelain laminate thickness on polymerization of resin cement. G-Cera resin bonding system(G-C int., Japan) was used in this study and Heliolux II (Vivadent, Austria) was used for polymerization of resin cement. The thickness of porcelain laminates used in this study were 0.5mm, 1.0mm and 1.5mm and the degree of polymerization of resin cement was measured by microhardness theater(Matsuzawa, Model MXT-70, Japan). The obtained results were as follows : 1. The surface hardness of resin cements increaing the thickness of poreclain laminate was decreased. 2. The surface hardness of resin cements increasing the curing time was decreased.
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강석구,구민숙,노광현,이정운,Suk-Ku Kang,Min-Suk Ku,Kwanghyun No,Jeong-Oon Lee 대한화학회 1987 대한화학회지 Vol.31 No.6
사과무늬잎말이나방의 성 유인물질인 (Z)-11-테트라데센-1-일 아세테이트(1)와 (E)-11-테트라데센-1-일 아세테이트(2)를 합성하여 생물활성시험을 수행하였다. 10-브로모데칸-1-올과 DHP에서 얻어지는 10-브로모데칸-1-올 THP에테르를 아세틸렌소디움음이온과 알킬화시켜 11-도데신-1-올 THP에테르를 합성하였다. 이것을 부틸리튬으로 처리하여 얻어지는 리튬음이온을 브로모에탄과 반응시켜 11-테트라데센-1-올 THP에테르를 얻었다. 이것을 $Pd/BaSO_4$하에서 수소환원시켜 (Z)-11-테트라데센-1-올 THP에테르를 얻었고, $Na/NH_3$와 금속환원시켜 (E)-11-테트라데센-1-올 THP에테르를 얻었다. (Z)-와 (E)-형의 화합물을 보호기를 제거한 후 아세트산무수물로 아세틸화하여 (Z)-11-테트라데센-1-일 아세테이트와 (E)-11-테트라데센-1-일 아세테이트를 각각 얻었다. 합성된 성 페로몬에 대한 사과무늬잎말이나방 숫컷의 성 유인력을 시험해 본 결과 활성이 있음이 밝혀졌다. Synthesis and Biological activity test are described for the (E)-11-tetradecen-1-yl acetate and (Z)-11-tetradecen-1-yl acetate, the sex pheromone of the Asiatic leafroller moth (Archippus breviplicanus Walsingham). 10-Bromodecan-1-ol THP ether was prepared from 10-bromodecan-1-ol. In liquid ammonia with THF and HMPA as cosolvents, sodium acetylide could be alkylated with 10-bromodecan-1-al THP ether to give 11-dodecyn-1-ol THP ether. 11-Dodecyn-1-ol THP ether was then treated with n-Buli in THF to give the lithium acetylide, which was alkylated with bromoethane to afford 11-tetradecyn-1-ol THP ether. 11-Tetradecyn-1-ol THP ether was then reduced over $Pd/BaSO_4$ and with Na in liquid $NH_3$ to give (Z)-11-tetradecen-1-ol THP ether and (E)-11-tetradecen-1-ol THP ether, respectively. (Z)-and (E)-11-Tetradecen-1-ol THP ether thus obtained were deprotected by refluxing in the presence of PPTS and ethanol. (Z)-and (E)-11-tetradecen-1-ol were acetylated with acetic anhydride to afford the final products, (Z)-11-tetradecen-1-yl acetate (1) and (E)-11-tetradecen-1-yl acetate (2), respectively. The synthetic pheromone thus obtained was attractive to the males of the Asiatic leafroller moth in the field.
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강석구,한경수,진태호,동진근,Kang, Seok-Ku,Han, Kyung-Soo,Jin, Tai-Ho,Dong, Jin-Keun 대한치과보철학회 1997 대한치과보철학회지 Vol.35 No.1
The author performed this study to investige the relationship between condylar movements recorded with Pantronic and mandibular movements at incisal area recorded with BioEGN. For this study 24 patients with Temporomandibular disorders(TMDs) and 30 dental students without any masticatory symptoms were selected as patients group and control group, respectively. The items recorded with Pantronic(Denar Corp., USA) were immediate side-shift, orbiting path, protrusive path, and PRI. BioEGN(Bioelectric-gnathography, Bioresearch Inc., USA) were sued to measure the amount of mandibular torque movement in frontal and horizontal plane and also the distance of mandibular translation at incisal area. Amount of mandibular rotational torque movement was analyzed by angle and difference between both condyles in frontal and horizontal plane. The collected data were processed with SAS program and conclusion were as follows : 1. Mean value of items recorded with Pantronic were not significantly differed between patients group and control group except the item of pantographic reproducibility index(PRI). The value of PRI was 39.5 in patients group, and 29.5 in control group. 2. The amount of mandibular torque movement was not differed tin early protrusive and early left excursion between patients group and control group, but in early right excursion, patients group showed more value than control group did. 3. The distance on sagittal plane in early eccentric movements were longer in patients group than those in control group, but the distance of maximal eccentric movements were not significantly differed between patients group and control group. 4. Items which showed significant correlation with PRI were progressive side-shift, and horizontal torque movement in early protrusion and right excursion. 5. The angle of protrusive path of affected side was greater than of non-affected side in unilaterally affected patients, but the protrusive angle of preferred chewing side was not differed from that of contralateral side in control group. 6. The amount of torque movement in early protrusion and right excursion were greater in patients with coincidence of affected side and preferred chewing side than in patients without coincidence.
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강석구,이철희,김정한,이정운,Suk-Ku Kang,Chul-Hee Lee,Jung Han Kim,Jeong-Oon Lee 대한화학회 1988 대한화학회지 Vol.32 No.1
배추좀나방의 성 유인물질인 (Z)-11-헥사데센-1-올, (Z)-11-헥사데센-1-알, (Z)-11-헥사데센-1-일 아세테이트를 합성하여 생물활성 시험을 수행하였다. 1-헥신의 리튬음이온을 10-브로모데칸-1-올 THP 에테르와 반응시켜 11-헥사데신-1-올 THP 에테르를 얻었다. 이를 수소환원시킨 후 (Z)-11-헥사데센-1-올 THP 에테르를 생성시킨 다음 보호기를 제거시켜 (Z)-11-헥사데센-1-올을 합성하였다. 아세틸화시켜 (Z)-11-헥사데센-1-일 아세테이트를 산화시켜 (Z)-11-헥사데센-1-알을 각각 합성하였다. 합성된 성 페로몬에 대한 배추좀나방 숫컷의 성 유인력을 시험해 본 결과 활성이 있음을 밝혀졌다. Synthesis and biological activity test are described for the (Z)-11-hexadecen-1-ol, (Z)-11-hexadecen-1-yl acetate, and (Z)-11-hexadecen-l-al, the sex pheromone of the diamond back moth, Plutella xylostella L.. Lithium acetylide was alkylated with 10-bromodecan-1-ol THP ether to give 11-hexadecyn-l-ol THP ether. 11-Hexadecyn-l-ol THP ether was stereoselectively reduced over Pd/BaSO4to yield (Z)-11-hexadecen-l-ol THP ether, which was in turn deprotected to provide (Z)-11-hexadecen-l-ol. (Z)-11-Hexadecen-l-ol was acetylated and oxidized to afford (Z)-11-hexadecen-1-yl acetate and (Z)-11-hexadecen-l-al, respectively. Biological activity test of the synthetic compounds, (Z)-11-hexadecen-l-ol, (Z)-11-hexadecen-1-yl acetate, and (Z)-11-hexadecen-l-al in the ratio of 0.1 : 5 : 5 was tested in the field using polyethylene capsules as containers. The numbers of moth trapped with pheromone vials were counted.
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강석구,안상순,김정한,이정운,Suk-Ku Kang,Sang Soon Ahn,Jung Han Kim,Jeong-Oon Lee 대한화학회 1988 대한화학회지 Vol.32 No.1
애모무늬잎말이나방의 성 유인물질 (Z)-9-인테트라데센-1-일 아세테이트(1)와 (Z)-11-테트라데센-1-일 아세테이트(2)를 합성하여 생물활성시험을 수행하였다. 1,8-옥탄디올에서 쉽게 얻을 수 있는 8-브로모옥탄-1-올 THP 에테르를 1-헥신의 리튬음이온과 알킬화시켜 9-테트라데신-1-올 THP 에테르를 얻었다. 이를 Pb/BaSO4 촉매하에서 수소환원시킨 후 PPTS로 보호기를 제거하여 (Z)-9-테트라데센-1-올을 얻었으며 이를 아세틸화시켜 (Z)-9-테트라데센-1-일 아세테이트(1)를 합성하였다. 한편 1,10-데칸디올에서 쉽게 얻을 수 있는 10-브로모데칸-1-올 THP 에테르를 아세틸렌나트륨음이온과 알킬화시켜 11-도데신-1-올 THP 에테르를 얻는다. 이를 다시 부틸리튬으로 처리하여 얻어지는 리튬음이온을 브로모에탄과 반응시켜 11-테트라데신-1-올 THP 에테르를 형성시켰다. 이를 Pd/BaS$O_4$ 하에서 수소환원, 보호기제거 후 (Z)-11-테트라데신-1-올을 거쳐, 아세틸화시켜 (Z)-11-테트라데센-1-일 아세테이트 (2)를 합성하였다. 합성된 성 페로몬에 대한 애모무늬잎말이나방 숫컷의 성 유인력을 시험해본 결과 활성이 있음이 밝혀졌다. Synthesis and biological activity test are described for the (Z)-9-tetradecen-1-yl acetate(1) and (Z)-11-tetradecen-1-yl acetate(1) and (Z)-11-tetradecen-1-yl acetate(2), the sex pheromone of the summer fruit tortrix moth, Adoxophyes orana. 8-Bromoctan-l-ol THP ether was prepared from 8-bromoctan-l-ol. The lithium anion of 1-hexyne was alkylated with 8-bromoctan-l-ol THP ether gave 9-tetradecyn-l-ol THP ether. Catalytic hydrogenation over Pd/BaSO4 followed by deprotection afforded (Z)-9-tetradecen-l-ol. Acetylation gave (Z)-9-tetradecen-1-yl acetate(1). l0-Bromodecan-l-ol THP ether was obtained from l0-bromodecan-l-ol. In liquid ammonia with THF and HMPA as cosolvents, sodium acetylide could be alkylated with 10-bromodecan-l-ol THP ether to give 11-dodecyn-l-ol THP ether. 11-Dodecyn-l-ol THP ether was then treated with n-BuLi in THF to give the lithium acetylide, which was alkylated with bromoethane to afford 11-tetradecyn-l-ol THP ether. Catalytic hydrogenation, deprotection, and acetylative gave (Z)-11-tetradecen-1-yl acetate(2). The synthetic pheromone thus obtained was attractive to the males of the summer fruit tortrix in the field.
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