자기 동조 기법에 의한 FUZZY 학습 제어기의 설계에 관한 연구

安斗守,全成基,李勝 成均館大學校 科學技術硏究所 1993 論文集 Vol.44 No.1

This paper deals with a design method of learning fuzzy controller for control of an unknown nonlinear plant using the self-tuning algorithm of fuzzy inference rules. In this method the fuzzy inference system is used as an identification model to learn the behavior of an unknown plant and a fuzzy controller based on it which is learned to get the plant tract the output of reference model. The simulation results show that the identification and learning control shemes suggested are practically feasible and effective.

뇌실내출혈로 인한 급성 수두증에서 관찰된 해리증후군

김광기,이경민,이정주,오종배,안태범,정상욱,남현우,박성호 대한신경과학회 1999 대한신경과학회지 Vol.17 No.5

P2P 파일 공유 에서 효율적인 네트워크 생성

안성수,이준,이정기,박찬모 東新大學校 2003 論文集 Vol.13 No.-

The leading applications in P2P(Peer-to-Peer) file sharing are Napster, Soribada, Gnutella and Kazaa. Napster and the early version of Soribada fall into the category of centralized P2P system in which a central server provides clients with the indices of shared files and clients share those files with the help of searching feature. Previous research on this resulted in Pastry, Freenet, Chord, and CAN. A node is not connected to an arbitrary node, but the structure of network is to be maintained by mapping the node and its target contents in a certain address space. Contents that are mapped in a certain address area calls for a routing only to that specific area which brings forth the advantage of increased search efficiency. Its weak point, though, is the overload in a certain area because the discriminator which is referred to by a content or a P2P client is mapped onto a physical network.

자기장 저속 냉동보관법을 이용한 쥐 치아 치주인대세포의 활성도 검사

안현정,김의성,김진,김덕원,김기열,이찬영,이승종 大韓齒科保存學會 2008 Restorative Dentistry & Endodontics Vol.33 No.4

본 연구의 목적은 흰쥐 상악 대구치를 발거하여 자기장 저속 냉동보관법을 이용하여 냉동 시 치주인대세포의 활성도 및 세포 사멸도를 MTT검색법과 TUNEL검사를 이용하여 측정하고자 하였다. 4주령의 암컷 Sprague-Dawley계 된 쥐의 상악 좌우 제1,2대 구치를 발거하여 각군 당 12개의 쥐 치아를MTT검색에 이용하였고 6개의 치아를 TUNEL 검사에 이용하였다. 실험군은 5개군으로 대조군은 즉시 발치군이며 4℃냉장고에서 1주일간 보관한 냉장군, 발치 후 동해방지제 처리과정을 거쳐 -196℃의 액화질소에 넣어 급속 냉동한 액화질소군, 21.7 ㎃, 60 ㎐, 1 G의 자기장을 이용하여 -0.3℃/min 의 속도로 -20℃까지 냉동 후 -196℃로 급속 냉동한 자기장군, -0.3℃/min의 속도로 -20℃까지 냉동 후 -196℃에 급속 냉동한 저속 냉동군으로 나누었다. 보존액은 F medium을 사용했으며 동해방지제로 10% dimethyl sulfoxide (DMSO)를 사용하였다. 치근면을 단위면적으로 표준화하기 위해 MTT측정값을 Eosin 염색 후 530 ㎜에서 측정한 흡광도 값으로 나누었다. TUNEL 검사 시 각 조직슬라이드에서 400배 크기의 현미경 시야에서 임의로 세 부분을 지정하여 정상 세포수와 양성 세포수를 세어 그 비율을 계산하여 각 실험군 당 평균치를 구하였다. 통계 분석을 위해 one way ANOVA를 시행하였으며 사후검정으로 Scheffe와 Tukey HSD방법을 썼으며 결과는 다음과 같다. MTT검색에 의한 흡광도를 Eosin염색 후 측정한 흡광도로 나눈 값에서는 자기장군은 즉시 발치군보다 낮은 세포활성을 보였고 (p < 0.05) 액화질소군, 저속 냉동군과는 통계적으로 유의성 있는 차이를 보이지 않았다. 그러나 자기장군은 액화질소군, 저속 냉동군과 함께 냉장군보다는 높은 세포 활성도를 보였다 (p<0.05).TUNEL검사 결과도 자기장군은 즉시 발치군보다 치주인대의 세포사멸도가 높았으나 (p < 0.05) 저속 냉동군과 액화 질소군과는 통계적으로 유의한 차이를 보이지 않았다. 자기장군은 냉장군보다 세포사멸도가 낮았으며 냉장군은 모든 군 중에서 세포 사멸도가 가장 높았다 (p<0.05). The purpose of this study was to evaluate the viability of periodontal ligament cell in rat teeth using slow cryopreservation method with magnetic field through MTT assay and TUNEL test. For each group, 12 teeth of 4 weeks old white female Sprague-Dawley rat were used for MTT assay, and 6 teeth in TUNEL test. The Maxillary left and right, first and second molars were extracted as atraumatically as possible under tiletamine anesthesia. The experimental groups were groupl (immediately extraction), group 2 (cold preservation at 4℃ for 1 week), group 3 (rapid Cryopreservation in liquid nitrogen), group 4 (slow cryopreservation with magnetic field of 1 G), and group 5 (slow cryopreservation). F medium was used as preservation medium and 10% DMSO as cryoprotectant. After preservation and thawing, the MTT assay and TUNEL test were processed. One way ANOVA and Scheffe method were performed at the 95 % level of confidence. The value of optical density obtained after MTT analysis was divided by the value of eosin staining for tissue volume standardization. In both MTT assay and TUNEL test, it had showed no significant difference among group 3,4, and 5. And group 3 had showed higher viability of periodontal ligament cell than group 2. From this study, slow cryopreservation method with magnetic field can be used as one of cryopreservation methods.

馬山灣에서의 燐과 窒素의 動態에 관하여

안태석,안태영,권오섭,조기성 江原大學校 附設 環境硏究所 1989 環境硏究 Vol.6 No.-

1978년 부터 1982년 까지 마산만 4개 정점에서 인산에 인과 질소 상태에 대한 조사 결과, 인산태 인과 질소 상태에 대한 조사 결과, 인산태 인은 각 정점별 평균치가 0.86∼2.70 μg at - P/ℓ이였고, Ammonia + amino 산태 질소는 1.21 ∼4.36 μg at - L/ℓ이였고, 질산태 질소는 0.94 ∼ μg at - N/ℓ 로 비교적 높은 값을 보였다. 마산시에 인접한 정점 1, 2에서는 질소의 농도가 점차로 증가하고 있는 경향을 보였다. 또한 질소와 인의 비율은 정점 1과 2에서 40을 넘는 값을 보여주어, 질소의 유입이 큰 것을 뜻하므로 이에대한 방지대책이 시급히 요구된다. The concentrations of phosphate-P, ammonia + amino acid-N, nitrite-N, and nitrate-N were measured at 4 sites in the polluted Masan Bay from 1978 to 1982. The mean concentration of phosphate-P, ammonia + amino acid-N, nitrine-N and nitrate-N in each site varied 0.68-1.90 ug at P/1, 1.21-4.36 ug at-N/1, 0.36-3.23 ug at-N/1 and 2.17-29.45 ug at-N/1, respectively. At site 1 and 2, nearyby Masan City, the concentration of nitrogen was gradually increasing according to the increase of the population of the city and the N/P ratios at site 1 and 2 reached more than 40.

주거기능의 도입을 위한 복합건축의 용도계획적 특성에 관한 연구 : 선진 외국사례를 중심으로

서기영,신중진,이성창,안정호 대한건축학회 2003 대한건축학회논문집 Vol.19 No.11

The purpose of this study is to extract the factors in determining the components and to clarify the correlation of the factors and residential uses in MXDs. For this purpose, discriminant analysis was conducted as the main research method and SPSS(Statistical Package for the Social Sciences) program was applied for statistical analysis. The results are summarized as follows : (1) The factors in determining the components are defined [Land Size], [Total Floor Space], [Development Density], [Development Entity], [Primary Use], [Site Location] and [Development Objectives]. (2) The factors affecting the Planning of the components are [Primary Use], [Development Objectives] and [Site Location]. (3) The significant internal items of these factors are 'U1(Office Uses)', 'U2(Retail Uses)', 'U3(Hotel Uses)', 'S1(Existing Residential District)', 'S3(CBD)', 'S5(Suburban CBD)' and 'O2(Community)'. (4) Through these results, we were able to extract the relationship of the internal items and residential uses.

임베디드 시스템을 이용한 빌딩 센서 네트워크 설계

이정기,박성일,안성수 동신대학교 2006 論文集 Vol.16 No.-

With the progress of information-oriented society, many device with advanced technologies invented by many companies. However, the current firmware technologies have many problems to meet such high level of new technologies. In this paper, we have successfully ported linux on an embedded system, which is based on intel StrongARM SA-1110 processor, then written several network modules fo ethernet-based network devices.

3급 부정교합 환자와 정상인에 있어서 하악소설과 Sigmoid Notch간의 거리에 관한 비교연구

박해승,안병근,이건주,김선해,박영주,유기준 한림대학교의료원 1994 人間科學 Vol.18 No.2

無酸素性 運動能力과 生理學的 變因의 關聯性

김기진,윤성원,김학열,정정진,우도영,노성규,손태열,안의수 江原大學校附設 體育科學硏究所 1991 江原大學校附設體育科學硏究所論文集 Vol.- No.16

Wingate test 및 Supramaximal exercise를 이용한 무산소성 운동능력의 측정시 나타난 변인의 관련성을 살펴본 본 연구를 요약하면 다음과 같다. Wingate test시 혈중젖산농도 최고치는 9.04±0.62mM로서 Supramaximal exercise시 보다 유의하게 높았으며, 혈장 LDH 및 CPK활성도는 두가지 운동부하후 모두 유의한 변화는 나타나지 않았다. 근전도상의 적분치, 중간파형빈도 및 평균파형빈도도 유의한 변화는 없었다. 등속성 수축시의 최대토오크는 양쪽 다리 모두에서 초당 60도의 각속도에서가장 높았다. Wingate test시의 최대파워는 등속성 수축시 최대토오크 및 Wingate test시 중간파형빈도의 직접적인 영향을 받는 것으로 나타났으며, 평균파워는 Wingate test시의 적분치 변화, 듣는 쪽 슬관절의 등속성 수축시최대토오크 및 Supramaximal exercise시 혈장 LDH 활성도의 직접적인 영향을 받는 것으로 나타났다. 이상의 결과에서 무산소성 운동능력과 관련지어 그 기전을 살피고자 할 때 체내 화학적 변화, 전기생리적 변화 및 발현능력의 복합성을 고려해야 하며 최대누적 산소결핍량의 활용가능성은 측정강도 결정방법을 중심으로한 계속적인 연구가 요구된다. The present study examined the relationship of variables related to anaerobic capacity with Wingate test and supramaximal exercise. Peak value of blood lactate concentration with Wingate test showeda significantly higher than suprammaximal exercise, and plasma LDH & median power frequency and mean power frequency were not any difference between two tests. Peak torque of isokinetic contractionh on knee joint showed a highest value in 60 degrees of angular velocity among a various angular velocity. Peak power of Wingate test was related to peak torque of isokinetic contraction and median power frequency of EMG with Wingate test, and mean power of Wingate test was related to integrated EMG with Wingate test, peak torque with isokinetic contraction of dominant knee joint and plasma LDH activity with supramaximal exercise. In this result, when it analyzed the mechanism of anaerobic capacity, ti was required the consideration of complexity according to biochemical alteration, electrophysiological alteration and revelation of performance, Appicapability of maximal accumulated O₂deficit was demaned a continuous study with the focus of exercise intensity.

인천 인현동 호프집 화재 피해자 분석

최정태,안무업,안희철,최영미,정재봉,서정열,유기철,이삼우,박석현,조준휘,김성환,김아진,송근정 대한응급의학회 2001 대한응급의학회지 Vol.12 No.4

Purpose : This study was conducted to develop field triage, transportation, distribution, and prehospital care at a fire disaster by analyzing the victims of the fore that broke out at a bar in Incheon. Method : We analyzed the cases of the victims of a fire in Incheon in Oct. 1999. We determined the primary care hospital, the arrival time, the burn size, the outcome, and the injury type from the medical records, the concerned organ records, and interviews with concerned persons. Result : The total number of victims was 137: 56 prehospital deaths, 1 hospital death, and 80 survivals. The Pearson correlation coefficient between the burn size and the severity was -0.175. There were 121(89.6%) cases of inhalation injury, 59 (43.7%) cases of flame burns, 66 (48.9%) cases of hypoxic brain damage, and 16 (11.9%) cases involving other types of injury. Conclusion : The causes of death of the fire victims were inhalation injury and hypoxic brain damage due to CO poisoning and other toxic inhalants. We propose the use of a simple triage and rapid treatment(START) system and a reassessment the delayed category in fire disasters.