釜山市 公園·遊園地 日日 利用者數 變動模型에 관한 硏究

權相洙,具泰益,朴承範 東亞大學校 1986 東亞論叢 Vol.23 No.1

Urban parks and pleasure ground are very important leisure resources for urban inhabitants which they can easily approach in the city. Thus the factors influencing the fluctuation of urban parks and pleasure ground visitors are not only physical ones but also complex ones of which various factors consist. The purpose of this study is to prove the factors which have the influence upon the fluctuation of urban parks (including pleasure ground) visitors, and to analyze the interrelations between these factors and the numbers of visitors, and to establish the model which can explain the fluctuation of urban park visitors. Through the literary survey, this study established only the quantitative factors (season, week, weather) to make the model. As the results of ANOVA, season and week had the strong influence upon the numbers of daily visitors, but climate very weak. Interaction effect between factors was verified. So, the factors were re-established as follows; Climate was transformed into quantative factors (precipitation, cloud, humidity, temperature, wind speed) and the interaction effect became new factor. Multiple regression analysis were carried out with these factors, and final fluctuation model were established on the verification of the curvilinearity. As the result of this model, multiple determinant co-efficient(R??) of each park was 0.65~0.68. For more accurate prediction of fluctuation, we need more careful study to establish the factors which was not included into this study.

암모늄 이온에 의한 T. aquaticus D-글리세르알데히드-3-인산 탈수소 효소의 활성화

권태익 충남대학교 자연과학연구소 1993 忠南科學硏究誌 Vol.20 No.1

호열세균인 Thermus aquaticus로부터 정제된 D-글리세르알데히드-3-인산 탈수소효소는 75 mM 염화암모늄에 의하여 활성도가 4.5배 증가됨을 발견하였다. 효소 활성 증가의 기작을 암모늄 이온 존재하에서 정상상태 (steady-state) 반응속도론적 방법, 효소 활성도의 pH 의존도, 그리고 효소의 열 안정성등에 의한 방법으로 연구하였다. 반응속도 실험의 결과들은 암모늄 이온의 효소와 G3P 간의 상호작용이 아닌 효소와 NAD^+, 또는 arsenate 사이의 상호작용에 영향을 끼친다는 것을 시사한다. 암모늄 이온은 높은 pH (pH 8.0-8.5) 영역에서만 효소활성을 상당히 증가시켰다. 이러한 관찰은 효소 활성도 증가가 GAPAH 반응의 가장 느린 단계로 알려진 효소로부터 NADH 방출 단계의 촉진에 기인됨을 시사한다. 암모늄 이온의 존재는 효소의 열에 대한 불활성화 속도를 변화시키지 않았다. 이것은 속도증가가 효소의 열에 대한 안정성과는 상관이 없음을 시사한다. 몇몇 다른 아민류가 효소의 반응속도를 증가시키는지 여부를 검사하였다. 그들 모두 암모늄 이온보다 덜 효과적임을 발견하였다. D-Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) purified from a thermophile, Thermus aquaticus, was found to be activated 4.5-fold by 75 mM ammonium chloride. The mechanism of the enzyme activation was studied by steady-state kinetics, pH dependence of enzyme activity, and heat stability of the enzyme in the presence of ammonium ion. The results of kinetic experiment suggest that ammonium ion affects the interactions between the enzyme and NAD^+ or arsenate, not that between the enzyme and G3P. Ammonium ion increased the enzyme activity significantly only in the high pH region (pH 8.0-8.5). This observation indicates that the increase in the enzyme activity is due to the facilitation of NADH release from the enzyme which is known to be the slowest step of the GAPDH reaction. The presence of ammonium ion did not alter the kinetics of the thermal inactivation of the enzyme, indicating that the rate increase is not related to the heat stability of the enzyme. Several amines were tested for their ability to enhance the enzymatic reaction rate. All of them were found to be less effective than ammonium ion.

강인한 퍼지 디지털 PI+D 제어 시스템의 설계 및 구현

권태익,이재홍,김승철,설재훈,임영도 동아대학교 정보기술연구소 2001 情報通信硏究所論文誌 Vol.9 No.1

In this paper, Fuzzy Digital PI+D Controller plans for load, noise, plant change, Fuzzy Controller makes use of simple four rule and membership function, and plant used three phase Induction Motor. Characteristic of system compared from experimentation respectively the proposed Control System, Digital PID Control and Digital PI+D Control System.

새로운 양성자-펌프 저해제의 합성(2) 및 생리활성 연구

김효정,권태익,박일현 충남대학교 기초과학연구소 1997 忠南科學硏究誌 Vol.24 No.1

For development new anti-ulcer agents, we synthesize proton-pump (H/K-ATPase) inhibitors which inhibit gastric acid secretion at the last step in the parietal cell. These are omeprazole analogues, in which pyridine group replaced by pyrazole moiety, to increase pharmacological activity and to decrease side effects, and we also synthesize substituted benzimidazole rings. The structure of the compounds was identified with ^1H-NMR, M.S. and I.R. The compounds which have 5-substituted benzimidazole show good activity in the following order MeO > Cl > H, and also, 1-benzyl group of pyrazole substituted compounds has inhanced activity.

부하에 대한 PI제어기의 안정화를 위한 전보상기의 구현

하달영,권태익,김승철,임영도 동아대학교 정보기술연구소 2001 情報通信硏究所論文誌 Vol.8 No.2

In this paper, Pre-compensator is proposed to solve the problem of PI controller with fixed parameter according to load. This problem has been solved by using various adaptive control methods and intelligent control methods. The distinguished feature of the proposed controller is to have simple structure and it can control effectively for steady state error. To prove this, the performance is evaluated by comparative experiment for system using PI control with pre-compensation and PI controller with fixed parameter. Experiment in the velocity control of the 3-phase induction motor is performed.

간편 퍼지와 디지털 PI+D를 이용한 제어 시스템의 설계

박윤명,권태익,박종오,임영도,최부귀 동아대학교 정보기술연구소 2000 情報通信硏究所論文誌 Vol.8 No.1

본 논문에서는 퍼지 디지털 PI+D제어기를 이용하여 외란, 잡음, 플랜트 변화 등에 강한 제어시스템을 설계한다. 퍼지제어는 간단한 4개의 규칙과 소속함수를 유도하여, 간편 퍼지를 이용한 디지털 PI+D 제어기를 설계하였으며 또한 플랜트는 2차 선형 플랜트를 적용하였다. 본 논문에서 제안한 제어 시스템과 디지털 PID 제어, 디지털 PI+D 제어 시스템을 시뮬레이션을 통해 각 시스템의 특성을 비교 하였다.

젊은 성인에서 신체 만족도에 따른 문제해결양식, 대인관계문제와 우울증상과 자살사고와의 관련성

차승민,김태성,강문희,권명진,김정란,왕성근,지익성 대한생물치료정신의학회 2011 생물치료정신의학 Vol.17 No.2

Objectives:The aim of this study was to evaluate that problem solving styles, interpersonal problems, depression and suicidal ideation according to body image satisfaction. Methods:One hundred and nineteen young healthy normal subjects filled out administered the Body Dysmorphic Disorder Examination-Self Report (Korean version of BDDE-SR K-BDDE-SR), Problem Solving Style Scale(Korean version PSS), Korean Inventory of Interpersonal Problem(KIIP), Korean version of the Depression Anxiety Stress Scale(KDASS-21), Korean version of Beck Scale for Suicidal Ideation(Korean version SSI) and Korean version of Reynolds Suicidal Ideation Questionnaire(Korean version SIQ) for a month. Results:Out of the 119 subjects, 39%(N=46) was male and 61%(N=73) was female. In high K-BDDE-SR group (higher than 67), helplessness was significantly higher than low K-BDDE-SR group(lower than 67), and problem-solving confidence, creative style, approach style were significantly lower than low K-BDDE-SR group. Also, Higher level of all KIIP factors in High K-BDDE-SR group was significantly differ than low K-BDDE-SR group. In High K-BDDE-SR group, K-DASS-21, SSI, and SIQ were significantly higher than low K-BDDE-SR group. Using multiple regression analysis contributing variance toward the total factor score of K-BDDE-SR of participants were K-DASS-21 and SIQ. Conclusion:Our results indicates that high tendency of dissatisfied body images have differences in helplessness, problem-solving confidence, approach style, interpersonal problems, depression and suicidal ideation compared to low tendency of dissatisfied body images. It is necessary to study body dysmorphic disorder patients group in the future.

디히드로엽산 환원효소 저해제의 정량적 구조-활성 상관관계 연구

박일현,권태익,전근 충남대학교 기초과학연구소 1997 忠南科學硏究誌 Vol.24 No.2

Inhibitors of the enzyme DHFR which is an enzyme of central role in biochemistry, are of great importance in medicine. For pyrimidine- and triazine-type inhibitors, quantitative structure-activity relationship (QSAR) and conformational analysis is performed.

혈액 응고인자 Ⅷ,Ⅸ과 X에 대한 다발성응고억제인자

박찬정,조한익,박창선,권태희,김승원,오연상,최성재 大韓血液學會 1984 大韓血液學會誌 Vol.19 No.2

복압성요실금(Stress urinary incontinence)과 절박성요실금(Urge incontinence)환자에서 TVT 수술 결과의 비교

이경구,이준호,권용욱,정태융,심희영,이상익 관동대학교 의과대학 의과학연구소 2005 關東醫大學術誌 Vol.9 No.1

Tension-free vaginal tape(TVT) has been widely used in the management of stress urinary incontinence(SUI), and has been applied to urge incontinence (UI). We evaluated and compared the outcomes between SUI and UI for patients who had undergone TVT. Patients were categorized into SUI(33 patients) and UI(26 patients). Before treatment, we asked about LUTSs using female bladder questionnaire. And we asked about sexual function. After treatment, the same questionnaires were repeated. During the postperative period, the objective and subjective success rate were evaluated. For operation outcome results, in SUI group there were 29 cases of cure (87.9%)and 2 of improvement(6.1%), and in UI group there were 20 cases of cure(76.9%)and 3 of improvement(11.5%) (p>0.05). The operation satisfaction rate of patients was 90.9% in SUI group and 84.6% in UI group(p>0.05). Improvement of sexual satisfaction occurred in 6(20.0%) of SUI group, and 3 (18.8%) of UI group, respectively(p>0.05). The objective success rate, satisfaction rate and sexual satisfaction of SUI patients did not significantly differ from the women with UI. Also, these results shows that TVT procedure improves some LUTSs in both groups. We consider the TVT procedure to be an effective treatment not for stress urinary incontinence but also urge incontinenece.