RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      • 좁혀본 항목

      • 좁혀본 항목 보기순서

        • 원문유무
        • 음성지원유무
          • 원문제공처
          • 등재정보
          • 학술지명
          • 주제분류
          • 발행연도
          • 작성언어
          • 저자

        오늘 본 자료

        • 오늘 본 자료가 없습니다.
        더보기
        • 무료
        • 기관 내 무료
        • 유료
        • KCI등재

          항공 라이다 데이터로부터 확장 카이 알고리즘을 이용한 건물경계선 추출

          조홍범,이광일,최현석,조우석,조영원 한국측량학회 2013 한국측량학회지 Vol.30 No.2

          항공 라이다로부터 획득한 대용량의 3차원 점 데이터로부터 대상 물체의 윤곽정보를 추출하는 것은 데이터 처리 과정에서 필수적이며 기반적인 기술 중의 하나이다. 특히 인공 구조물인 건물은 복잡한 현대 도시를 구성하는주요 구조물이며 그 형태가 명확하기에 윤곽 정보의 추출 과정이 더욱 중요하다 할 수 있다. 본 연구에서는 항공 라이다를 이용하여 얻어진 건물을 구성하는 3차원 점 데이터로부터 건물의 윤곽정보를 추출하기 위하여 점 데이터의기하정보만을 이용한 확장 카이(χ-Chi) 알고리즘을 제안한다. 제안된 알고리즘은 임의의 점군을 델로니(Delaunay)삼각망으로 구성하고 특정 조건을 만족하는 변(edge)를 제거하는 과정을 통하여 구현된다. 덧붙여, 전체적인 추출과정의 효율화를 위해서 델로니 삼각망의 구성을 스윕헐 알고리즘을 적용하여 수행하였다. 본 연구에서 제안하는확장 카이 알고리즘의 성능을 확인하기 위하여 본 연구와 같은 목적으로 개발된 인케이싱 폴리곤 제작 알고리즘과 알파 쉐이프 알고리즘을 비교하였고 기 제작된 건물의 도화정보를 이용하여 윤곽정보 추출의 정확도를 비교하였다. 실험결과, 본 연구에서 제안한 알고리즘은 기존의 알고리즘들보다 윤곽정보 추출 속도 및 정확도가 향상됨을확인하였다. It is essential and fundamental to extract boundary information of target object via massive threedimensionalpoint data acquired from laser scanner. Especially extracting boundary information of manmadefeatures such as buildings is quite important because building is one of the major components consistingcomplex contemporary urban area, and has artificially defined shape. In this research, extended χ-algorithmusing geometry information of point data was proposed to extract boundary information of building fromthree-dimensional point data consisting building. The proposed algorithm begins with composing Delaunaytriangulation process for given points and removes edges satisfying specific conditions process. Additionally,to make whole boundary extraction process efficient, we used Sweep-hull algorithm for constructing Delaunaytriangulation. To verify the performance of the proposed extended χ-algorithm, we compared the proposedalgorithm with Encasing Polygon Generating Algorithm and α-Shape Algorithm, which had been researchedin the area of feature extraction. Further, the extracted boundary information from the proposed algorithmwas analysed against manually digitized building boundary in order to test accuracy of the result of extractingboundary. The experimental results showed that extended χ-algorithm proposed in this research proved toimprove the speed of extracting boundary information compared to the existing algorithm with a higheraccuracy for detecting boundary information.

        • Betaine을 이용한 non-specific PCR 반응의 억제 효과

          조홍범 서경대학교 산업기술연구소 2007 産業技術硏究所論文集 Vol.18 No.-

          Betaine has been applied to improve PCR amplification of GC-rich DNA sequences. Recently, betaine is not only used for improving binding efficiency of spotted PCR products and reducing non-specific background signal in DNA microarrays, but enhancing efficiency of PCR reaction. In this study, betaine as the PCR additive was used for restraining non-specific amplification. Non-specific PCR product was not obtained in this study and PCR enhancing effect was not observed.

        • Guanidine isothiocyanate와 silica bead를 이용한 토양내 미생물의 핵산 추출 방법

          조홍범 서경대학교 산업기술연구소 2009 産業技術硏究所論文集 Vol.23 No.-

          In this study, we applied polymerase chain reaction method to detect Pseudomonas aeruginosa from soil and used guanidine isothiocyanate and silica bead to extract genomic DNA. The algD gene of P. aeruginosa was selected for specific detection and primer sets were designed (forward [5-ggccatcaagttggtatcaagt-3], reverse [5-atgctgattcgcatcgcat-3]). Existing DNA extraction methods based on guanidine & silica bead were compared with other old methods. The sensitivity of the guanidine-based method was significantly higher than that of the others. The better sensitivity of guanidine & silica based DNA extraction could be explained by the finding that the method using guanidine isothiocyanate & silica has a greater ability than the other methods for elimination of PCR reaction inhibitor.

        • PNMT유전자 조각의 shot-gun cloning에 관한 연구

          조홍범,최영길 한국미생물학회 1990 微生物과 産業 Vol.16 No.1

          동물체의 신경전달물질은 acetylcholine을 비롯한 9종 이상의 물질이 알려져 있으며 이들 물질의 생체내에서의 기작과 생합성 과정에 관해서는 많이 알려져 있고 또한 이 방면의 연구도 활발하다. 그중에도 Joh와 Baetge등에 의하여 DBH와 PNMT 효소의 생산에 관여하는 mRNA가 면역침전법에 의하여 순수 분리되고 이를 주형으로 하여 DBH와 PNMT 효소 생산에 근본이 되는 유전자의 염기서열 및 유전자의 구조를 규명하는 작업이 진행되고 있으나 아직도 그 전체가 규명된 바는 없다 (Baetge등, 1981;1983;Joh등, 1983;1984). 그리하여 본인들은 상기의 연구자들로부터 PNMT 유전자인 cDNA를 M13mp18과 19의 vector phage에 재조합시키고 이 cDNA를 JM107rhk 109의 host bacteria에 도입하여 형질발현 실험을 통하여 확인하고자 하였다.

        • Effects of Acidification on The Distribution of Heterotrophic Bacterial Species in Aquatic Ecosystem

          조홍범 서경대학교 산업기술연구소 1996 産業技術硏究所論文集 Vol.1 No.-

          In an artificial BH-gradient batch culture system, the author analyzed the effects of acidification on the species composition of heterotrophic bacteria in aquatic ecosystem. As the result of this study, total heterotrophic bacteria isolated the entire pH gradient were 9 genera and 21 species. Among them,64% were gram negative and 36% were gram positive bacteria. As pH decreased, the distribution rate of gram positive bacteria increased. The diversity of genera decreased from 13 to 5 as pH decreased from 7 to 3. In analyzing clustering, a diversity index had a category from 1.13 to 2.37, and it had lower indices as pH decreased, which proves the significance of aspecies diversity index. On the other hand, the incidence rate of heterotrophic bacterial plasmids decreased as pH decreased, but it was proved to be difficult to discuss the relationship between the speciesd iversify of a heterotrophic bacteria and the incidence of plasmids in the acidified aquatic ecosystem.

        • Pseudomonas sp.Strain #A1 에서 C-P 화합물 분해 유전자의 Cloning

          조홍범 서경대학교 산업기술연구소 1997 産業技術硏究所論文集 Vol.2 No.-

          C-P compounds (Pn; phosphonates) such as glyphosate (GSP),aminoethylphophonate (AEPn) and methylphosphonate (MPn) biodegrading genes were cloned from Pseudomonas sp. strain #Al which assimilated GPS as sole phosphorous source, Carrying out the in vivo molecular cloning by means of Mini-Mu plasmid for the gene to degrade C-P compounds, those size of clones (AEPn+, MPn+, and GPS+) are 10~19kb, 10Kb and 12-l8Kb,respectively, Moreover, they expressed the phenotype for each Pn when they were transformed into .PAn mutants. Hence, it is postulated that Pseudomonus sp. #Al has three kinds of Pn degradative pathway, separately. In addition to it since each of .Phn clones (AEPn+, MPn+, GPS+) was phoBR -dependent or controlled under phoBR gene, they seemed to be the members of PHOregulon.

        • Moraxella sp.CK-1의 genetic marker 재조합

          조홍범 서경대학교 산업기술연구소 1998 産業技術硏究所論文集 Vol.5 No.-

          Moraxella sp. CK-1 shows extreme sensitivity to kanamycin antibiotics. It could not grow in the medium containing 2 ug/㎖ of kanamycin. As CK-1was susceptible for kanamycin, it could be used as an effective selection marker for screening of an insertional inactivated mutant. To examine the function of the magA gene, magA::Km was constructed.

        • KCI등재후보

          Comparison between L and E gene amplification analytical methods for human papillomavirus typing

          조홍범,김경태,김영재 대한부인종양학회 2008 Journal of Gynecologic Oncology Vol.19 No.4

          Objective: L and E6/E7 gene amplification analyses were compared to identify human papillomavirus (HPV) infection and verify the HPV type, with the intent to minimize HPV typing errors. Methods: L1 gene verified HPV typing was accomplished via polymerase chain reaction (PCR) and membrane assays. Verification of HPV typing via E6/E7 genes was accomplished through nested multiplexed PCR. The results from 104 samples were compared. Results: The rates of accordance and difference were 35% and 65%, respectively. For 29% of the analyses, nested multiplexed PCR was more diversified than the membrane assay. Conclusion: HPV can be classified into low-risk HPV and high-risk HPV groups. In parallel amplifications of the L and E genes is more efficient for accurate diagnosis in light of the different symptoms and attendant precautions of the risk groups. Objective: L and E6/E7 gene amplification analyses were compared to identify human papillomavirus (HPV) infection and verify the HPV type, with the intent to minimize HPV typing errors. Methods: L1 gene verified HPV typing was accomplished via polymerase chain reaction (PCR) and membrane assays. Verification of HPV typing via E6/E7 genes was accomplished through nested multiplexed PCR. The results from 104 samples were compared. Results: The rates of accordance and difference were 35% and 65%, respectively. For 29% of the analyses, nested multiplexed PCR was more diversified than the membrane assay. Conclusion: HPV can be classified into low-risk HPV and high-risk HPV groups. In parallel amplifications of the L and E genes is more efficient for accurate diagnosis in light of the different symptoms and attendant precautions of the risk groups.

        • 토양세균 군집의 16S rDNA 제한효소 지문 분석

          조홍범 서경대학교 산업기술연구소 1998 産業技術硏究所論文集 Vol.5 No.-

          To investigate the differences of soil bacterial diversity according to 5vegetation types, restriction enzyme patterns of 16S rDNA were analyzed. From the fingerprints by amplified rDNA restriction analysis(ARDRA), soil samples were grouped three kinds of soil microbial communities as forest, grass-agricultured and naked soil. Genetic similarity was lowest between direct extracted soil DNA and indirect extracted from heterotrophic bacteria that cultured in LB medium.

        • 염색체 미세 절단법과 형광보합법을 이용한 인간의 21번 염색체에 대해 특이적인 탐침 개발

          조홍범,박진경 서경대학교 산업기술연구소 2001 産業技術硏究所論文集 Vol.10 No.-

          The smallest human autosome, chromosome 21, has been highly relevant to clinical cytogeneticists because trysomy 21 is the primary cause of Down syndrome. Also, recent publications on fluorescence in situ hybridization(FISH) with chromosome-specific probes suggests that this technique may facilitate the detection of numerical aberrations in metaphase spreads and interphase nuclei. This technique includes microdissection, followed by in vitro DNA amplification and fluorescence in situ hybridization(FISH). Whole chromosome was peapared from GTG-banded lymphocytes. The chromosome material was amplified by degenerate oligonucleotide primed-polymerase chain reaction(DOP-PCR). The resulting PCR products were labelled by nick translation with spectrum-Red dUTP and used as probe for FISH. The result was confirmed by FISH.

        맨 위로 스크롤 이동