정헌 고인석 교수 정년퇴임기념호 / 경희한약개발연구소편 : 신석의 간장독작용과 감초의 해독에 관한 연구

류경수(Kyung Soo Ryu),김명회(Myung Hoe Kim) 경희대학교 동서약학연구소 1986 경희약대 논문집 Vol.14 No.-

효율적으로 방위각 이노베이션을 구하는 다중표적 방위각 추적 알고리즘

유창수,이장식,이균경,Ryu, Chang-Soo,Lee, Jang-Sik,Lee, Kyun-Kyung 대한전자공학회 2001 電子工學會論文誌-SC (System and control) Vol.38 No.6

최근에 Ryu 등은 추정된 신호부공간(signal subspace)으로부터 구한 방위각 이노베이션을 이용하여 다중표적의 방위각을 추적하는 알고리즘을 제안하였다. 이 알고리즘은 데이터를 연관시키면서 동시에 표적의 방위각을 구하기 때문에 기존의 추적 알고리즘과 달리 별도의 데이터연관 기법이 필요 없으며, 구조가 간단하다는 장점을 가지고 있다. 그러나 표적의 개수가 N일 때, 각 표적의 방위각 이노베이션을 구하기 위하여 차원이 (2N+1)${\times}$(2N+1)인 실행렬의 역행렬을 구하는 것이 필요하다. 본 논문에서는 표적의 조향벡터를 신호부공간에 투영할 때, 투영오차가 0이 된다는 사실로부터 방위각 이노베이션을 구하기 위한 새로운 선형 방정식을 제안하였다. 제안한 새로운 선형방정식은 Ryu의 알고리즘에서 사용하는 식과는 달리 한 개의 방위각 이노베이션만을 변수로 사용하기 때문에 역행렬을 구할 필요가 없고 효율적이다. Recently, Ryu et al. proposed a multiple target angle tracking algorithm using the angular innovation extracted from the estimated signal subspace. This algorithm obtains the angles of targets and associates data simultaneously. Therefore, it has a simple structure without data association problem. However it requires the calculation of the inverse of a real matrix with dimension (2N+1)${\times}$(2N+1) to obtain the angular innovations of N targets. In this paper, a new linear equation for angular innovation is proposed using the fact that the projection error is zero when the target steering vector is projected onto the signal subspace. As a result, the proposed algorithm dose not require the matrix inversion and is computationally efficient.

양악전돌증 환자에서 하악 6전치 후방 이동 시 치료 방법에 따른 하악 경조직과 연조직의 변화: 하악 전방분절골절단술과 발치 교정 치료

김영주,김경아,유용재,유경선,유정민,오주영,김수정,김성훈,이백수,Kim, Young-Joo,Kim, Kyung-A,Yu, Yong-Jae,Ryu, Kyung-Sun,Ryu, Jeong-Min,Ohe, Joo-Young,Kim, Su-Jung,Kim, Seoung-Hun,Lee, Baek-Soo 대한악안면성형재건외과학회 2012 Maxillofacial Plastic Reconstructive Surgery Vol.34 No.4

Purpose: The purpose of the study is to evaluate the effectiveness of anterior segmental osteotomy (ASO) in bimaxillary protrusion (BP) patients by comparison between the mandibular soft and hard tissue changes from orthodontic treatment and ASO. Methods: All 44 patients were diagnosed with BP in Kyung-Hee Medical Center. Orthodontic treatment with teeth extractions were underwent by 23 patients (Group A) and 21 patients underwent ASO (Group B). Mandibular soft and hard tissue changes were measured and evaluated, which were based on the vertical and horizontal reference line in lateral cephalometric radiographs. Statistical significance between the changes and correlation between each measurement were analyzed. Results: The amount of B point movement was lesser than that of the lower incisal tip (LIT) retraction, and LIT was tilted lingually in group A. The posterior movement discrepancy between LIT and B point was insignificant, and the inclination of lower incisor was not changed in group B. The soft tissues, including the lower lip, showed a posterior movement and reduction in the depth of mento-labial groove. According to the correlation analysis, the movement of the lower incisor was significantly related to the movement of the lower lip in group A, and the movement of the lower incisor was significantly related to that of the movement of lower lip, B point and Pog in group B. Conclusion: The orthodontic treatment in BP patients results in posterior tilting movement of the lower incisor, but ASO results in the bodily movement of the lower incisor. Consequently, ASO is more effective in BP cases because it ensures the controlled movement of the lower incisors.

한방약의 성분 및 약효에 관한 연구(제1보) : 매자나무의 성분 연구 Study on the Components of Berberis koreana Palibin

柳庚秀,陸昌洙 慶熙大學校 1985 論文集 Vol.14 No.-

The Korean Berberis genus included 5 kinds consisting of 3 species and 2 varieties. Berberis Koreana was announced as a new species by Palibin. A shrub 1-2m high, with branched spines, ovate toothed leaves in clusters and yellow flowers in drooping racemes. Flowers May-June and berries red. The five kinds of chemical components are isolated from MeOH extracts of Berberis koreana by column fractionation. Substance I is suggested as a quaternary based (bis-isoquinoline type) series substance (berberine and jateorrhizine) based on mp, admixture of authentic sample, TLC and IR spectral data. Substance Ⅱ-Ⅲ were identified as palmatine and magnoflorine. Phyosterol were indentified as β-sitosterol.

기업가정신이 벤처기업의 기술혁신 성과에 미치는 영향

임경수,유지현 대구대학교 산업기술연구소 2011 産業技術硏究 Vol.22 No.1

This study is based on 2010 Survey of Korea Venture Firms by Korea Venture Business Association and utilizing this survey, we abstracted 1,527 cases of venture businesses in accord with the purpose of analysis according to the stratified sampling method. For analysis, we investigated the relationship between Korea Small Business Innovation Research Program, entrepreneurship, technological innovation activity and the technological innovation performance. Major findings are as follows : First, risk-taking of entrepreneurship and the importance of R&D labor force had significant difference between the benefited business and the non-benefited businesses with the fund support. However, the other variables hadn't . Second, entrepreneurship, the importance of R&D labor force, the technological superiority, and the technological competitiveness were influenced by the opportunity enlargement of venture firms to the government's industry policy. Lastly, the support of the venture firm's cooperation activity with the universities, research institutes, major companies have significant influences to the entrepreneurship such as Innovativeness, risk-taking, proactiveness and to the technological innovation performance such as technological competitiveness, the technological superiority. From this result, we suggests that the technological innovation support system will contribute to the entrepreneurship, technological innovation activity, and the technological innovation performances

韓方製劑의 品質評價 및 藥效에 關한 硏究(第1報) : 太陰人熱多寒少湯의 品質評價에 對하여 Study on Quality Control of Taeeuminyuldahanso-Tang

柳庚秀,盧榮洙,崔乘基 慶熙大學校 1987 論文集 Vol.16 No.-

A quantitative quality control method of traditional drug TAEEUMINYULDAHAN-SO-TANG containing Scultellariae Radix was attempted with the ion-paired high performance liquid chromatograph. Flavonoids(baicalin, baicalein and wogonin) could be assayed on an ODS columm(LiChrosorb RP-18) by using a variable wavelength UV detector. The mobile phase containing tetra-n-amylammonium bormide as the ligand was utilized. The proposed method is considered to be useful for the quality control of the above-mentioned traditional oriental drug.

林道에 대한 意識構造 調査硏究

柳澤圭,田璟秀 圓光大學校 1992 論文集 Vol.26 No.2

The objectives of forest management is to maintain equilibrium between the economic timber production and the indirect utility of forest. In order to accomplish of these objective, forest road is prerequisite. So the purpose of this study is to analyse the economic efficiency on constructed forest road. In addition, Questionnaire was made to investigate the consciousness structure of users who participant forestry and participant little to forestry. In socio-economic characters of users, the number of users showed differences by residence, however income per month was not difference in the number of users. The purpose of visit of users was mainly forest management in the participant but recreation and health in the participant little to forestry. Management plans of forest road should be established in order to pertinently harmonize nature resource conservation and use. More systematic and prolonged management plans of forest road should be established.

코치의 직무 스트레스에 관한 비교연구

류경희,함경수,황준섭 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1

The main objective of this study is to reveal the relationship between the cause of a coach's job stress. In terms of the subject of this study, coaches, who are now at work in Kyunggi Province 2003, were selected as a population, especially 177 persons of coaches were adopted by means of nonproportional stratified sampling. In this survey, demographical variables are sex, age, education, job character, training item and coaching experience, in addition to them, with regard to dependent variables there are precisely not only role ambiguity, role conflict, excessive work, personal relations, expenses problem and work conditions as the cause of job stress, but also job satisfaction and tendency for turnover as the system efficiency. According to those kinds of method and procedure, the results of this study are as follows. 1) The difference of cause of job stress in sex is showed that male group is statistically more significant than female group. 2) The difference of cause of job stress in ages is present that group in forties is more significant than group of in twenties or thirties. 3) The difference of cause of education is significant only between group of the high school-educated and group of the graduate school-educated in terms of work conditions(p=0.0001). 4) The difference of cause of coaching experience is displayed that group of the 6-year-experienced over is much more significant than group of group of the 5-year-experienced below.

林業生産의 價値評價에 關한 硏究

柳澤圭,田璟秀 圓光大學校 1994 論文集 Vol.28 No.2

임업 통계자료와 산업연관표를 이용하여 우리나라의 경제상황에서 임업의 위치와 역할을 알고, 임업생산이 국민경제에 미치는 효과를 알기 위하여 산림의 생산효과를 분석한 결과 국민총생산에 대한 임업생산의 비중이 점차 감소하고 있으나 직접적인 생산효과에 비하여 간접적인 생산효과가 약 8배에 이르는 부가가치가 높은 산업이었다. 따라서 임업투자를 증대하여 지속적인 산지자원화가 필요하고, 또한 임업의 성장을 위해서는 산지자원의 효율적인 이용과 경영기반의 개선으로 적극적인 산림산업이 이루어져야 할 것으로 생각되었다. This study is to analyse the effects on national economy of the forest products, position and role of forestry in Korea, The data of this study has been sourced by Forestry statistics of the Forestry Administration and interindustry tables of The Bank of Korea. The results are summarized as follows; The importance of forestry in Gross National Product has been decreasing. But forestry could be regarded as a high value added industry, indirect production effect are about 8 times of direct production effect in forestry. So, we have to increase the production of forest products, with efficient use and develop of forest resources, development a basis of forest management, positive forest working and enlargement of forestry investiment. Thus effects on national economy would be multiplied severalfold.

슬관절 등속성 운동시 근골격 모델의 검증:실험 및 모의실험 연구 : 실험 및 모의실험 연구 An Experimental and Simulatio study

배태수,강성재,최경주,김신기,유재욱,진미령,문무성 대한정형외과연구학회 2003 대한정형외과연구학회지 Vol.6 No.2