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      • KCI등재

        우리나라 파프리카 수출단지 및 선과장의 병해충 조사

        김기돈,이시원,강은하,신용길,전재용,허노열,이흥식 충남대학교 농업과학연구소 2013 농업과학연구 Vol.40 No.2

        The disease and insect were surveyed locally in greenhouse, fruit packing house and store house of 51 farms in 13 towns having purpose of paprika exportation. By analysis, various disease and insect were not only founded locally but more ones detected in farms having old facilities and no natural enemy. We found 15 pathogens such as Fusarium spp., Alternaria solani, Leveilluila taurica, PepMV (Pepino mosaic virus) and TMV (Tobacco mosaic virus) in greenhouse, Fusarium spp. in fruit packing house and Penicillium spp. in store house. We found 15 insects in greenhouse such as Bemisia tabaci, rialeurodes vaporariorum and Myzus persicae in greenhouse, Hylobitelus haroldi in fruit packing house. However, the problem quarantine disease and insect for importation and exportation were not detected in inspection time.

      • Pd-ZSM-5 촉매상에서 메탄의 완전연소에 관한 연구

        엄기태,함현식 명지대학교 대학원 1997 대학원논문집 Vol.1 No.-

        The methane combustion reaction was conducted over Pd-ZSM-5 catalysts in order to get a total combustion of methane. ZSM-5 synthesized at low temperature and atmospheric pressure was used as a support. The change of methane conversion with changing SiO_2/Al_2O_3 molar ratio was tested. And, the methane conversion of the synthesised ZSM-5 catalyst was compared with a commericial ZSM-5. The methane conversion was increased with decrease in SiO_2/Al_2O_3 molar ratio. Methane combustion reaction rate was also increased with decrease in SiO_2/Al_2O_3 molar ratio. The synthesised ZSM-5 showed better methane conversion than that of the commericial one.

      • 로렌츠 다양체상에서 쟈코비안의 비교 정리

        양기열,김삼태,김정식 順天大學校 1998 論文集 Vol.17 No.1

        본 논문에서는 두 로렌츠 다양체 위에서 자코비안을 정의하고, 각 Ricci 곡률과 평균곡률의 조건이 주어질 때 두 자코비안의 크기를 비교하였으며 이 결과를 이용하여 [9]에서 증명한 Rauch 비교 정리도 간단히 증명 하였다. In this paper, we will define the Jacobian along the unit speed future directed timelike geodesic segment perpendicular to the spacelike submanifold N and present the comparison of Jacobians under assumption on the curvatures such as the extension of the Rauch comparison theorem for timelike geodesics[9].

      • 殺蟲性 結晶蛋白質 特異的인 抗體의 生産

        김기윤,이정민,유형진,백길현,권무식 성균관대학교 생명과학자원연구소 1996 生命資源科學硏究 Vol.3 No.1

        Bacillus thuringiensis is a gram-positive soil bacterium characterized by its ability to produce crystalline inclusions during sporulation. These parasporal bodies consist of protoxins known as crystal proteins exhibiting highly specific insecticidal activities. The Lepidoptera-specific protoxin, Cry IAc, was purified from E.coli JM103 harboring the cry IAc gene. The gene was isolated from Bacillus thuringiensis kurstaki HD-73 and subcloned into an expression vector, pKK223-3. The recombinant DNA(pOS4201) was transformed into E.coli JM103. The Cry I Ac protoxin overexpressed in the E.coli was isolated from the total proteins by differential solubility. The protoxin were trypsinized to obtain activated toxin. The proteins was resolved on SDS gel. The molecular weights of the pro-and toxin were resistered about 130,000 and 65,000 Daltons respectively. The Cry IAc toxin was used as immunogen to produce anti-Cry IAc antiserum in a rabbit. The immunogen (200㎍/ 200㎕) was mixed with an equal volume of Freund's complete adjuvant, and the mixture was hypodermically injected to the hide back (30 spots) and paws (2 spots) of the rabbit. The immunization was performed four times every two weeks. The dosage of the immunogen was decreased by half, and incomplete adjuvant was substituted for the complete one from the second immunization. The serum was prepared from the blood as described elsewhere. Immunoreactivity of the serum was examined by dot-blotting with the aid of GAR-HRP indirect immunoassay kit. It has been found that the anti-Cry I Ac antiserum recognized nano-gram quantity of antigen under these experimental conditions. The antiserum will he used for the development of immunochemical mean(s) to screen transgenic plants transformed by the insecticidal characteristics of Cry I Ac.

      • 盛土에 의한 橋臺의 側方移動에 대한 硏究

        박춘식,장정욱,유기재,최성민 國立 昌原大學校 産業技術硏究所 2002 産技硏論文集 Vol.16 No.-

        This Study investigated a possibility of lateral movement in the reconstruction field of Nongso bridge at Nongso-ri, Joochon-myeon, Kimhae. The methods applied in this study were the judgement formula and the Finite Element Method(FEM). The conclusions are shown in the following. 1) The application of the FEM, as well as the judgement formula resulted in the lateral movement. 2) Bridge abutment and foundation must be constructed after completing consolidation. 3) The occurrence possibility of lateral movement should be judged by the FEM that can re-present field conditions. 4) Lateral movement will take place in the case. Hence, settlement of proper countermeasure method should be followed by the construction.

      • KCI등재

        紅花와 益母草가 CCI_4 로 損傷된 흰쥐의 肝에 미치는 影響

        기성식,길기정,이영종 대한본초학회 2001 大韓本草學會誌 Vol.16 No.2

        After orally administration of a single dose of carbon tetrachloride to rat, the rat was fed the decoctions prepared from Carthami Flos or Leonuri Herba twice at internals of 12 hours. Then, the effects of C. Flos and L. Herba on liver damage was examined. The results were : 1. The decoctions prepared from C. Flos and L. Herba decreased the activities of blood ALT and AST in the damaged rats, and the decoctions prepared from L. Herba increased the glucose level. 2. The decoctions decreased blood LDH activity and blood bilirubin level in the rats. 3. The decoctions prepared from C. Flos and L. Herba and no effects on the blood ALP activity in the rats. 4. The changes of the activities and the levels were not in proportion to the prescribed amount of the decoctions. It needs further study on the optimal dosage.

      • 中風早期檢診을 통한 高脂血症과 成人病에 대한 比較硏究

        李紀泰,金允植,薛仁燦 대전대학교 한의학연구소 2002 한의학연구소 논문집 Vol.11 No.1

        From June 1th to December 31th 2001, the study was carried out 285 person who came to the Daejon oriental hospital for the examination of CVA. The result was as follows: 1. Hyperlipidemia patient is 41%, 50's is the highest. 2. In the case of Hyperlipidemia patient, Taeyum type is 49%, Soyang type is 36% and Soyum type is 15%. but in the Control group Taeyum type is 36%, Soyang type is 44% and Soyum type is 20%. 3. In the case of Abnormal EKC, Hyperlipidemia group is 34%, Control group is 32%. 4. In the case of Liver disease, Hyperlipidemia group is 17%, Control group is 9%. 5. In the case of Diabet mellitus, Hyperlipidemia group is 30%, Control group is 7%. 6. In the case of Hypertension, Hyperlipidemia group is 50%, Control group is 42%.

      • UWB 신호를 사용한 사용자 위치추적

        김기표,최정식,변건식 東亞大學校附設 情報技術硏究所 2004 情報技術硏究所論文誌 Vol.12 No.1

        Although, the GPS using for user location tracking has many advantages of chasing the target in a wide area, the GPS has defect as is isn't able to chase the location in doors or basements. To make up for it's defect, we need to use the UWB signal. The UWB has not a very wide bandwidth, but low signal level under noise level and it can pass through a wall. In this report, using the time delay we simulate indoor position tracking system to chase a user among people in a building when signal is in progress

      • OFDM에서 Bitloading 알고리즘의 성능평가

        최정식,이성신,김기표,변건식 東亞大學校附設 情報技術硏究所 2005 情報技術硏究所論文誌 Vol.13 No.1

        OFDM technique which the available bandwidth is split into several narrowband subchannels at different frequencies is particularly suited for transmission over frequency selective channels. But if the states of some subchannel are bad, the performance of system become to decrease. The principle of bitloading is to adjust the date rate on the individual subchannels based on the current SNR. A subchannel with high SNR is then assigned more bits than a subchannels with lower SNR. As a results, we confirmed the superior performance if we used bitloading algorithm in OFDM system.

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