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김관수,최재석,이순영,장순용 慶尙大學校 工科大學 自動化및컴퓨터應用技術硏究所 1999 自動化 및 컴퓨터應用技術 Vol.6 No.1
In this paper, the direct and indirect neural adaptive controller are combined based on the Lyapunov synthesis approach. The proposed adaptive controller is constructed from RBF neural network and a set of fuzzy IF-THEN rules. And the weighting parameters are adjusted on-line according to some adaptation law for the purpose of controlling the plant to track a given trajectory. In this scheme, fuzzy IF-THEN rules are used to decide the combined weighting factor. It is shown that all the signals in the closed-loop system are uniformly bounded under mild assumptions. The effectiveness of the proposed control scheme is demonstrated through the control of one-link rigid robotics manipulator.
임석균,박인순,여환호,지재휴,김영균,김수관 大韓顎顔面成形再建外科學會 1997 Maxillofacial Plastic Reconstructive Surgery Vol.19 No.2
Despite the current accomplishments with the repair of cleft lips, the surgical management of the nasal deformity remains a functional and aesthetic dilemma for patients, their families, and reconstructive surgeons. Recent improvements in the understanding and technical execution of te primary cleft lip repair have significantly reduced secondary sequelae and the consequent need for secondary surgical correction. But, secondary surgical corrections are necessary according to numerous factors. Such factors include the secondary surgical corrections are necessary according to numerous factors. Such factors include the severity of the initial deformity, the surgical plan, precision of execution of the primary repair, and success of the postoperative management. We preformed the secondary correction of cleft lip and palate in 11 patients via various methods. In conclusion, primary repair of cleft lip and palate patients is the most important to prevent the secondary deformities, and most of cleft lip and palate with secondary deformities must be treated with combined cheiloplasty and rhinoplasty.
임석균,이기혁,김영균,김수관,이병준,여환호,서재훈 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.3
Bilateral cleft lip reconstruction can be performed in one-or two-stages. The choice depends on the surgeon's proficiency and experience. However the type and severity of the cleft must be considered. Complete or incomplete symmetric, bilateral clefts in which the premaxilla is within the alveolar arch or slightly protruded can be successfully treated with simultaneous lip reconstruction on both sides. There are some advantages that one-stage lip reconstruction facilitates creation of a symmetric and balanced lip, retraction of protruding premaxilla and the parent's psychologic satisfaction. However, there are some disadvantages such as micrognathia of the upper jaw by severe scar formation and poor adaptation of flap margins by severe tension. The surgeon must be able to judge and exploit the advantages offered by one-stage approach. We present the case report of one-stage reconstruction of primary bilateral cleft lip with literature reviews.
부갑상선 호르몬이 조골세포군의 교원분해효소 유리에 미치는 영향에 관한 연구
이인석,김관식,정동균 대한구강생물학회 1990 International Journal of Oral Biology Vol.14 No.1
Bone resorption is accomplished by the removal of both mineral and the organic matrix. The cellular origin of bone collagenase that is responsible for the removal of unmineralized organic matrix has remained equivocal. This study was performed to investigate the effect of PTH on the release of collagenase and cellular origin of bone collagenase in bone cell populations. Calvaria from fetal rat at 19-day of gestation, were sequentially digested by the enzyme solution consisted of collagenase, trypsin and EDTA for 10 min (PopulationI), 10 min (II), 10 min (III), 20 min (IV) and 20 min (V). Each bone cell population was primarily cultured for 6-7 days and splited to 5.0×10^5 cells/35mm culture dish and then incubated for 6 days with MEM with or without PTH (1.0U/ml). Collected medium was incubated with type I collagen for 6h at 37℃ and then used for hydroxyproline determination by Woessner's method. The results were as follows. 1. There were no significant differences of collagenase activity among 5 bone cell populations. 2. PTH (1.0U/ml) had no effect on the collagenase activity in the population I, II, III and V. 3. PTH (1.0U/ml) significantly increased collagenase activity in population IV.
강태석,차관수 청주대학교 사회과학연구소 1992 한국사회과학연구 Vol.11 No.-
It is widly known that the improvements of highly accurate and dense control networks are major requirements to carry out a large scale mapping for numerical cadastral surveying. This study tries to present a improved method for aerial triangulation as a way to guarantee the accuracy of numerical cadastral photogrammetry. To subtanciate the study, a sample test block is selected to compare the accuracy of ground surveying and other photogrammetric methods. The result of this study can be summarized as follows : To begin with, the positon errors of proposed bundle adjustment with gross error detection for single models are proved for better accuracy then Direct Linear Transformation or Self-Calibration Bundle Adjustment. And also, in Block Adjustment, the Bundle Block Adjustment gets better results to compare with the Independent Model Adjustment. Thus, it is suggestive that the Bundle Block Adjustment would be an efficient device for the numerical cadastral surveying in futher time.
Gwan-Seok Lee,Seol-Mae Lee,Chang-Seok Kim,Hong-Soo Choi,Kyeong-Yeoll Lee,Wonhoon Lee 한국응용곤충학회 2013 한국응용곤충학회 학술대회논문집 Vol.2013 No.10
Field surveys for the B. tabaci species complex were conducted from 2009 to 2013 in Korea, and the results were compared with published data of the B. tabaci complex. Three species, Mediterranean, Middle East-Asia Minor 1, and JpL, were determined from several regions based on mitochondrial COI sequences. The Mediterranean was mainly collected in greenhouses, displacing the earlier invasive species, Middle East-Asia Minor, and the JpL was collected in the field. The JpL is newly confirmed as a unique species of B. tabaci complex in Korea and Japan.