• Proceedings of the Korean Society of Precision Engineering Conference
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• 1995.10a
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• pp.788-793
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• 1995

For a linkage mechanism deiven by cam, cam profile is the major design factor and is determined by the motion type od cam follower. If a cam mechanism has additional kinematic linkages besides cam and follower then the follower motion should be specified form the motion of end linkage member so that cam would be able to generate the desired end linkage motion. In this paper, a cam-linkage mechanism is constructed with the combinations of modular linkage elements including cam and follower and as a resullt, a planar cam-linkage mechanism design software with the cam profile optimization function is developed and presented.

• Journal of the Korean Society for Precision Engineering
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• v.16 no.1 s.94
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• pp.125-131
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• 1999

For linkage mechanisms driven by a cam, cam profile is the major design factor and is determined by the cam follower motion. If a cam mechanism has additional kinematic linkage besides cam and follower then the follower motion should be specified from the motion of end linkage member so that cam would be able to generate the desired end linkage motion. In this paper, a cam-linkage mechanism is constructed with the combinations of modular linkage elements including cam and follower and as a result, a planar cam-linkage mechanism design software with the cam profile optimization function is developed and presented.

• 한국어정보학회:학술대회논문집
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• 2016.10a
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• pp.157-161
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• 2016

본 논문에서는 클러스터 간의 중복을 허용한 계층적 클러스터링(hierarchical clustering) 기법에 적합한 클러스터 간 유사도 평가방법(linkage metric)을 제안하였다. 클러스터 간 유사도 평가방법은 계층적 클러스터링에서 클러스터를 통합하거나 분해하는데 쓰이며 사용된 방법에 따라 클러스터링의 결과가 다르게 형성된다. 기존의 클러스터 간 유사도 평가방법인 single linkage, complete linkage, average linkage 중 single linkage와 complete linkage는 클러스터 간 중복이 허용된 환경에서 정확도가 낮은 문제점이 있고, average linkage는 정확도가 두 방법에 비해 높지만 계산 시간 소요가 크다는 단점이 있다. 따라서 본 논문에서는 기존의 average linkage를 개선하여 중복된 데이터에 의한 필요 계산량을 크게 줄임으로써 시간적 성능이 우수한 클러스터 간 유사도 평가방법을 제안하였다. 또한, 제안된 방법을 기존 방법들과 비교실험하여 중복을 허용하는 계층적 클러스터링 환경에서 정확도는 비슷하거나 더 높고, average linkage에 비해 계산량이 감소됨을 확인하였다.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.46 no.4
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• pp.341-343
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• 2001

Molecular markers have become fundamental tools for crop genome study. The objective of this study was to construct a genetic linkage map for cowpea with PCR-based molecular markers. Five hundred and twenty random RAPD primers were screened for parental polymorphism. Ninety RAPD markers from sixty primers was segregated in 75 F2 mapping population derived from the cross of local cultivars GSC01 and GSC02. 70 RAPD markers were found to be genetically linked and formed 11 linkage groups. Linkage map spanned 474.1 cM across all 11 linkage groups. There are six linkage groups of 40 cM or more, and five smaller linkage groups range from 4.9 to 24.8 cM. The average linkage distance between pairs of markers among all linkage groups was 6.87 cM. The number of markers per linkage group ranged from 2 to 32. The longest group 1 spans 190.6 cM, while the length of shortest group 11 is 4.9 cM. This map is further needed to be saturated with the various markers such as RFLP, AFLP, SSR and more various populations and primers. In addition, morphological markers and biochemical markers should be united to construct a comprehensive linkage map.

• BMB Reports
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• v.30 no.4
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• pp.253-257
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• 1997

Negative ion fast atom bombardment (FAB) mass spectra were found to allow the determination of the linkage positions in a series of underivatized linkage-isomeric oligosaccharides. A previous work (Laine et al., 1988) reported that ion patterns of linkage-isomeric trisaccharides could be distinguished by a positive ion. Negative ion FAB collison-activated dissociation (CAD) mass spectrometry (MS) spectra of trisaccharides exhibited better sensitivity than the positive ion mode and provided specific fragmentation patterns according to the linkage positions. Especially, the fragmentations, m/z 205 in F6 and m/z 221 in G6, not occuring in 1-3 or 1-4 linkage. were an indication of 1-6 linkage, by changing collision energies from + 10 eV to +60 eV. The survival ratios of molecular ions in each collision energy set gave support to previous results in which the order of bond stability was 1-6>1-4>1-3 linkage.

• Annual Conference on Human and Language Technology
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• 2016.10a
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• pp.157-161
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• 2016

본 논문에서는 클러스터 간의 중복을 허용한 계층적 클러스터링(hierarchical clustering) 기법에 적합한 클러스터 간 유사도 평가방법(linkage metric)을 제안하였다. 클러스터 간 유사도 평가방법은 계층적 클러스터링에서 클러스터를 통합하거나 분해하는데 쓰이며 사용된 방법에 따라 클러스터링의 결과가 다르게 형성된다. 기존의 클러스터 간 유사도 평가방법인 single linkage, complete linkage, average linkage 중 single linkage와 complete linkage는 클러스터 간 중복이 허용된 환경에서 정확도가 낮은 문제점이 있고, average linkage는 정확도가 두 방법에 비해 높지만 계산 시간 소요가 크다는 단점이 있다. 따라서 본 논문에서는 기존의 average linkage를 개선하여 중복된 데이터에 의한 필요 계산량을 크게 줄임으로써 시간적 성능이 우수한 클러스터 간 유사도 평가방법을 제안하였다. 또한, 제안된 방법을 기존 방법들과 비교 실험하여 중복을 허용하는 계층적 클러스터링 환경에서 정확도는 비슷하거나 더 높고, average linkage에 비해 계산량이 감소됨을 확인하였다.

• Bulletin of the Korean Chemical Society
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• v.33 no.1
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• pp.248-254
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• 2012

During the monolayer assembly of zeolite microcrystals using sonication with stacking (SS) method, the factors that govern the degree of close packing (DCP) between the microcrystals, the rate of attachment (rA) of microcrystals onto the substrate, the degree of coverage (DOC), and the binding strength (BS) between each crystal and the substrate were investigated for each mode of binding linkage (MBL). The tested MBLs were covalent linkage (CL), ionic linkage (IL), and polyelectrolyte-mediated ionic linkage (p-IL). Unlike the monolayers of zeolite crystals assembled on glass with a covalent linkage, the strong BS, very high DOC, and very high DCP do not decrease during monolayer assembly on glass through ionic linkages. This results indicate that the surface migration of crystals undergo linkage-nondestructively when crystals were attached to the substrates through ionic linkages.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.48 no.4
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• pp.297-302
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• 2003

Genetic linkage maps serve the plant geneticist in a number of ways, from marker assisted selection in plant improvement to map-based cloning in molecular genetic research. Genetic map based upon DNA polymorphism is a powerful tool for the study of qualitative and quantitative traits in crops. The objective of this study was to develop genetic linkage map of soybean using the population derived from the cross of Korean soybean cultivar 'Kwangkyo, and wild accession 'IT182305'. Total 1,000 Operon random primers for RAPD marker, 49 combinations of primer for AFLP marker, and 100 Satt primers for SSR marker were used to screen parental polymorphism. Total 341 markers (242 RAPD, 83 AFLP, and 16 SSR markers) was segregated in 85 $\textrm{F}_2$ population. Forty two markers that shown significantly distorted segregation ratio (1:2:1 for codominant or 3:1 for domimant marker) were not used in mapping procedure. A linkage map was constructed by applying the computer program MAPMAKER/EXP 3.0 to the 299 marker data with LOD 4.0 and maximum distance 50 cM. 176 markers were found to be genetically linked and formed 25 linkage groups. Linkage map spanned 2,292.7 cM across all 25 linkage groups. The average linkage distance between pair of markers among all linkage groups was 13.0 cM. The number of markers per linkage group ranged from 2 to 55. The longest linkage group 3 spanned 967.4 cM with 55 makers. This map requires further saturation with more markers and agronomically important traits will be joined over it.

• Proceedings of the Korea Contents Association Conference
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• 2008.05a
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• pp.823-826
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• 2008

This paper shows linkage management for external services. There are many services for specific entities such as DBLP and OntoWorld. OntoFrame, as a Semantic Web-based research information service portal, aims at one-stop service in ways that it connects external services with hyperlinks. For managing the linkage, linkage rules are manually edited by human administrators and automatically verified and tested by linkage management system. It consists of linkage rule management, linkage rule verification, linkage test, and dynamic link generation. Linkage rule management creates and edits linkage rules to connect external services on the Web. After finished rule editing and verification step, linkage management invokes linkage test with entity list. Only valid links are visible to enable users to click on our system, and thus it increases user's reliability on the system.

• Journal of the Korean Chemical Society
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• v.42 no.3
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• pp.297-301
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• 1998

Linkage positions in oligosaccharides may be obtained by FAB CAD MS/MS (Fast Atom Bombardment Collision Activated Dissociation Mass Spectrometry/Mass Spectrometry). Acetylated derivatives of the linkage-isomeric trisaccharides exhibited more useful product ion patterns than the free trisaccharides and provided specific fragmentation patterns according to linkage positions. The reason for the useful linkage dependent spectra patterns of acetylated forms is related to the ability of each linkage in the oligosaccharides to absorb different levels of collision energy and rotational freedom of the individual glycosidic linkage.