CORBA 환경에서 프로토타이핑 지원을 위한 재사용 시스템 개발

김행곤,차정은,한덕수 대구효성가톨릭대학교 응용과학연구소 1998 응용과학연구논문집 Vol.6 No.2

In software industry, coexist the software crisis occurring continuously with methodologies and tools for overcoming it. Since 1980's, software reuse and object-orientation have been hot issues in software engineering. Object-oriented methodology can meet user's need concentrating on convenience of development process. By dealing with software product at the component level and by focusing on arbitrarily abstract description of component, software reuse allows user to deal with minute detail. Also, by dealing with software design at the architecture level, it supplies the automation principle of what must be taken in construction process. By hand, in distributed object environment, we can produce the economical software by accessing the data from different and various repository and sharing the data with different user because it support to development the client/server program and integrate existing systems in heterogeneous environment. We implemented the MT-views to utilize the reuse effects as reuse prototyping system or supporting including retrieval, understanding and rebuilding tools based on source code, documentation and etc., using CORBA on distributed object environment.

대구·경북 지역의 환경만족도 평가에 관한 연구

엄붕훈,한성미,최정은 대구효성가톨릭대학교 응용과학연구소 1997 응용과학연구논문집 Vol.6 No.1

The purpose of this study is to develop the estimation model of 'Environmental Satisfaction'. A questionnaire survey was carried out for the study area of Taegu-Kyungbuk region. Sampling size was 838 residents(427 in Taegu and 411 in Kyungbuk) selected by stratified sampling of each sampling area's population. The survey was done from Sep. to Nov. 1996. The proposed model was composed of four estimation categories and 16 indicators. The four categories were 'Clenness & Quietness', 'Naturalness & Harmony', 'Beauty & Comfort' and 'Environmental Conservation Efforts'. And each category has several individual indicators. Means of environmental satisfaction by indicators were different by sampling areas. In 'Total Satisfaction', Suseong-gu(3.01), Nam-gu(2.82)(Taegu), Kimcheon(3.32), and Cheondo(3.31) (Kyungbuk) showed high environmental satisfaction, but Dong-gu, Seo-gu(Taegu), Youngcheon, and Pohang(Kyungbuk) showed lower environmental satisfaction. According to weighting values by each indicator, 'Cleanness of Air' (X1), 'Familiarity to Green Areas' (X6), 'Comfort of Traffic' (X12), and Env. Protection Efforts' (x15) were the most important indicators in each category.

당뇨쥐 신장조직에서의 약물대사효소활성과 지질과산화

이순재 대구효성가톨릭대학교 응용과학연구소 1998 응용과학연구논문집 Vol.6 No.2

당뇨 유발쥐에서의 신장조직에서의 MFO계활성에 따른 지질과산화를 관찰하기 위해 체중 140g 내외의 Sprague-Dawley 숫쥐를 정상군과 당뇨군으로 나누어 4주간 사육한 후 당뇨군은 STZ로 당뇨를 유발시키고 당뇨유발 6일후 쥐를 희생시켜 신장조직 microsome 중의 mixed function oxidase (MFO) system과 과산화지질 함량을 관찰하였다. 1. 신장조직중의 cytochrome P_450 함량은 정상군에 비해 당뇨군에서 77% 증가하였다. 2. 신장 조직중의 cytochrome b_5 함량도 정상군에 비해 당뇨군이 78% 증가하였다. 3. 신장 조직중의 NADPH-cytochrome P_450 reductase는 당뇨군이 정상군에 비해 27% 증가하였다. 4. 신장 조직중의 TBARS 함량은 정상군에 비해 당뇨군에서 147% 증가하였다. 따라서 STZ 유발 당뇨군의 신장조직에서 MFO계 활성이 증가됨에 따라 지질과산화도 크게 증가됨을 알 수 있었다. The microsomal mixed function oxidase system and lipid peroxidation of kidney were investigated in streptozotocin(STZ) induced diabetic rats. Sprague-Dawley male rats weighing 400±10g were randomly assigned to one control and STZ-diabetic group. Diabetes was experimentally induced by intravenous injection of 55mg/kg body weight of STZ in citrate buffer(pH 4.3) Animals were sacrificed at the 6th day of diabetic state. The content of cytochrome P_450 in kidney was increased by 77% in DM group, compared with normal group. The content of cytochrome b_5 in kidney was increased by 78% in DM group, compared with normal group. The activity of NADPH-cytochrome P_450 reductase in kidney was increased by 27% in DM group, compared with normal group. Level of TBARS (thiobarbituric acid reactive substance) in kidney was increased by 147% in D M group, compared with normal group.

기울기하강법과 동적터널링 시스템을 이용한 신경망의 새로운 경신규칙

조용현 대구효성가톨릭대학교 응용과학연구소 1998 응용과학연구논문집 Vol.6 No.2

This paper proposes a new method of update rule for neural networks by using the steepest descent method and the dynamic tunneling system. The update rule of steepest descent method is applied for high-speed optimization. The update rule of dynamic tunneling system is applied for global optimization. Having converged to the local minima by using the steepest descent method, the proposed method estimates the initial point for escaping the local minima by applying the dynamic tunneling system. The proposed method has been applied to the travelling salesman problems to evaluate the performances. The simulation results show that the performance of proposed method is superior to that of Hopfield model using the update rule of steepest descent method.

멀티미디어·저작도구를 이용한 재귀적 알고리즘의 시각화

김정두,이영채 대구효성가톨릭대학교 응용과학연구소 1997 응용과학연구논문집 Vol.6 No.1

In this paper, we aimed to design a system for visualization of recursive algorithms using the multimedia authoring tool. For the sample algorithm, we used Factorial function, and as the authoring tool, we used SAEBIT. Through the Visualization of the algorithm, students will be able to easily understand the concept, and the system is expected to help the motivation of learning interest. And the system will also contribute to enhance the feedback of student learning activities.

포함 복합체에 관한 연구 (제1보) : β-Cyclodextrin과 piromidic acid의 상호작용 Complexation between β-Cyclodextrin and piromidic acid

최윤수,이경선 대구효성가톨릭대학교 응용과학연구소 1993 응용과학연구논문집 Vol.2 No.-

Inclusion complexation of piromidic acid with β-cyclodextrin was studied by solubility method, continuous variation method, FT-IR, ^1H-NMR, ^13C-NMR and power X-ray diffractometry in solution and solid state. A stable solid inclusion complex was prepared by freeze drying method. The appearance of the phase solubility diagram and disagreement of stability constants evaluated by two methods in solution proved that at least on complex with a stoichiometry other than 1:1.

소프트웨어 재사용을 위한 구성요소의 식별에 관한 연구

김행곤 대구효성가톨릭대학교 응용과학연구소 1994 응용과학연구논문집 Vol.3 No.-

Identification of reusable software components should guide user to come up with informa-tion about candidate components when a proper component is not found. In this thesis we prsent a new component classification scheme to enhance the accuracy and power of the component identification. This scheme is basically a faceted scheme with the advantages of the traditional enumerative scheme added to feature a vertical view among components. Resu-able software components represented in terms of Component Identifier and Component Des-criptor are stored into a library according to the above classification scheme. A user who ne-eds a software component queries the component library for a wanted component or a list of candidate components. Such a component identification procedure has been implemented as a mechanism and evaluated using the reusable software library which were constructed with the various progrms of the UNIX system according to the classification scheme.

송화분이 흰쥐의 간장에 미치는 영향

한준표 대구효성가톨릭대학교 응용과학연구소 1997 응용과학연구논문집 Vol.5 No.-

6주간 고지방식 이와 송화분을 투여한 흰쥐의 간장에 미치는 송화분의 효과를 관찰하였다. 간장에서의 total lipid, triglyceride의 농도는 고지방 식이군과 비교했을 때 유의성 있게 감소하였고, total cholesterol 농도도 감소하는 경향을 나타내었다. total protein농도는 각 군간에 차이가 없었다. 간장의 조직학적 관찰에서,고지방 식이 투여한 군에서는 심한 조직의 지방 침착을 보였으며, 송화분과 고지방식이 병용 투여군에서는 다소 억제하는 경향을 보였다. 이상의 결과로 송화분은 고지혈증 및 순환기계 질환의 예방에 효과가 있는 것으로 사료된다. Effect of pine pollen on lipid accumulation and metabolism in liver investigated with rats fed high fat-supplemented diets for 6 weeks. Concentrations of total lipid and triglyceride in liver significantly decreased in the experimental groups(treated with pine pollen) compared with the control group. Concentration of total cholesterol showed a little decreasing. It was observed from photographs of hepatic tissue in rats that pine pollen inhibits the lipid accumulation induced by high fat diets.

Streptozotocin 유발 당뇨쥐에서 Insulin, Cortisol 및 Methallothionein 함량의 경시적인 변화

이순재,박규영,김미지,김성옥,최정화,채영미,홍희진,윤지영 대구효성가톨릭대학교 응용과학연구소 1997 응용과학연구논문집 Vol.6 No.1

The purpose of this study was to investigate change of insulin, cortisol level, and methallothionein contents according to time in streptozotocin induced diabetic rats. Sprague-Dawley male rats weighing 150±10gm were randomly assigned normal group and STZ-induced diabetic ones. Diabetic groups were classified by experimental period. Diabetes was induced experimentally by intravenous of 55㎎/㎏ of body weight of STZ in citrate buffer(PH 4.3) after 6 weeks feeding of experimental diets. Animals were sacrificed at 0, 3, 6, 12, 18th days of diabetic states. The insulin level in plasma was decreased in that of diabetic mellitus (DM) groups during 3 days starting experiment period but was little change during the other days. The contents of cortisol in plasma was the highest at 6th day. Contents of blood glucose of DM groups were increased significantly compared with that of normal groups from 3rd day but there was little change during the other days. The contents of methallothionein in liver was the highest at 6th day.

대구 지역의 일부 비만중학생의 식생활 행동에 관한 연구

최봉순 대구효성가톨릭대학교 응용과학연구소 1997 응용과학연구논문집 Vol.6 No.1

본 연구는 청소년 비만증의 예방과 치료를 위해서 기본자료를 얻고자 대구광역시에 있는 K남자중학교 2학년 43명(정상군 13명, 비만A군 12명, 비만B군 18명)을 대상으로 비만에 관련된 여러 가지 식생활행동에 관한 전반적인 요인을 알아보았으며, 조사 결과는 다음과 같다. 정상군의 평균신장과 체중은 165.2±6.1cm, 53.8±5.9kg이며 BMI는 19.7±1.7이었다. 비만군은 중등도 비만으로 평균신장 163.2cm, 체중 74.86kg, BMI는 28.84이었다. WHR은 정상군은 0.84, 비만군은 0.94이며 피하지방두께중 Triceps(mm)와 체지방율(%)s는 정상군은 9.7, 16.3이며 비만군은 21.0, 31.22였다. 단백질 식품에 대한 기호도는 정상군 닭고기, 우유, 쇠고기 순으로 비만군든 쇠고기, 닭고기, 돼지고기순으로 높게 나타났다. 탄수화물 식품에 대한 기호도는 정상군 학생은 과자, 흰밥, 국수순으로 비만군 학생은 과자, 라면, 초콜렛 순으로 높았다. 지방 식품에 대한 기호도는 비만군이 정상군보다 기호도가 높게 나타났다. 기호도 순위조사에서는 정상군은 귤, 김, 아이스크림, 사과, 쥐포, 과자 순으로 비만군은과자, 아이스크림, 라면, ?떵볍? 귤, 초콜렛 순으로 기호도가 높게 나타나 정상군과 비만군 간에 다소 차이를 보였다. 식행동 조사에서는 비만군이 정상군에 비해 T.V 시청시 음식섭취를 많이 하였고, T.V 시청시간도 비만군이 4hr/DAY으로 정상군 2hr/DAY보다 시청시간이 길었다. 간식을 섭취하는 이유로는 정상군과 '배가 고파서 먹는다'가 가장 많았으나 비만군은 '습관적으로 먹는다'가 가장 많아 정상군과 비만군 간에는 다소 차이를 보였다. 본 연구는 청소년 비만증의 예방과 치료를 위해서 기본자료를 얻고자 대구광역시에 있는 K남자중학교 2학년 43명(정상군 13명, 비만A군 12명, 비만B군 18명)을 대상으로 비만에 관련된 여러 가지 식생활행동에 관한 전반적인 요인을 알아보았으며, 조사 결과는 다음과 같다. 정상군의 평균신장과 체중은 165.2±6.1cm, 53.8±5.9kg이며 BMI는 19.7±1.7이었다. 비만군은 중등도 비만으로 평균신장 163.2cm, 체중 74.86kg, BMI는 28.84이었다. WHR은 정상군은 0.84, 비만군은 0.94이며 피하지방두께중 Triceps(mm)와 체지방율(%)s는 정상군은 9.7, 16.3이며 비만군은 21.0, 31.22였다. 단백질 식품에 대한 기호도는 정상군 닭고기, 우유, 쇠고기 순으로 비만군든 쇠고기, 닭고기, 돼지고기순으로 높게 나타났다. 탄수화물 식품에 대한 기호도는 정상군 학생은 과자, 흰밥, 국수순으로 비만군 학생은 과자, 라면, 초콜렛 순으로 높았다. 지방 식품에 대한 기호도는 비만군이 정상군보다 기호도가 높게 나타났다. 기호도 순위조사에서는 정상군은 귤, 김, 아이스크림, 사과, 쥐포, 과자 순으로 비만군은과자, 아이스크림, 라면, ?떵볍? 귤, 초콜렛 순으로 기호도가 높게 나타나 정상군과 비만군 간에 다소 차이를 보였다. 식행동 조사에서는 비만군이 정상군에 비해 T.V 시청시 음식섭취를 많이 하였고, T.V 시청시간도 비만군이 4hr/day으로 정상군 2hr/day보다 시청시간이 길었다. 간식을 섭취하는 이유로는 정상군과 '배가 고파서 먹는다'가 가장 많았으나 비만군은 '습관적으로 먹는다'가 가장 많아 정상군과 비만군 간에는 다소 차이를 보였다. To study the prevention and treatment of adolescents obesity, 43 subjects were selected as an obese group among the 2nd grade in K man's middle school in Taegu. It was observed that the prevalent factors of obesity were related with eating behavior. The results to this study can be summarized as following: 1. The average height of normal group(NG), obese group(OG-A)and obese group-B was 165±6.1㎝, 165.3±3.2㎝ and 161.8±9.4㎝ respectively. Rohler Index of the subjects was 119.4±11.6(NG), 174.8±16.8(OG-A) and 167.8±12.2(OG-B). BMI of the subjects was 19.7±1.7(NG), 28.9±2.8(OG-A) and 28.8±7.7(OG-B). WHR(waist to hip ratio) of the subjects was 0.84±0.05(NG), 0.95±0.03(OG-A) AND 0.93±0.04(OG-B).. Triceps skinfolds thickness of the subjects was raged from 9.7±2.8(NG) to 22.1±3.7(OG-A). Abdomen skinfolds thickness of the subjects was ranged from 11.5±5.3(NG)to 35.5±9.9(OG-A). 2. A normal group has a tendency to eat orange, laver, ice-cream, apple, dried filefish and cookies in order, and an obese group has a tendency to eat cookies, ice-cream, ra myo˘n, ddo˘k bok gi, orange, chocolate in order. There was a little difference between a normal and an obese group. 3. It showed in the test of food behavior that an obese group consumed food more than a normal group while watching TV. The time to watch TV was longer in the obese group(4hr/day) than the normal group(2hr/day). The reasons that they have a snack were "I'm eating for hunger" in a normal group generally, and "I'm eating habitually" in an obese group. That indicated the difference between a normal group and an obese group. Adolescent obesity has been identified as a risk factor for adult obesity and its related health problems, it is imperative to develop the intervention aimed at healthful diet and nutrition education programs.