大都市 給水施設의 改善方向에 관한 硏究 : 大邱市를 中心으로

權容一,金水源 啓明大學校 産業技術硏究所 1987 産業技術硏究所 論文報告集 Vol.9 No.-

The purpose of this study to develop new and more responsive approaches of effective plan of a large water supply systems for large cities by data analysis of the existing water supply systems and facilities of Taegu city for an example case of the study. The result there of are summarized as follows ; 1) It is necessary to select and develop multiple sources of supply to ensure a constant and safe supply requirement ; the source such as long-term safe source and alternative sources like surface water with raw water reservoirs groundwater and water reuse systems. 2) "Block system " of pipeline network should be adopted for distribution network for whole supply area to ensure efficient and proper operation and maintenance including leakage protection works. 3) The capacity of while water storage reservoirs should be increased and reallocated to ensure level of service for while customers. 4) Boosting pump stations should be properly allocated for efficient supply to consumers during periods of peak demand and drought.

관광호텔의 외국환 관리에 관한 연구

강용관 문화관광연구학회 2001 문화관광연구 Vol.3 No.1

The purpose of this study is to deal with the effective management of foreign exchange for improving profitability of tourism hotel, and specially to aim at the gap between the remittance to foreign banks and the collection from foreign banks. This study analyzed the number of foreigners in each deluxe hotel in Seoul, trade status of foreign exchange, and profit from money exchange. An analysis of remittance status of foreign exchange because of commission payment on the management skill from foreign hotel chains and the cost from hiring foreign general manager proves that first, deluxe hotel in Seoul just do their duties as a purchasing foreign exchange, second, cost rate is too high to exchange into Korean Won because they draw the money from foreign banks after purchasing traveler"s check, and third, there are some needless cost in sending the money to foreign banks which is needed for management of tourism hotel. This study has following limitation. First, there are some errors in collecting data and analyzing status because of statistics of the amount of money exchange is not computerized. Second, research objective is restricted as deluxe hotels only in Seoul. Third, American dollar is the key currency in many countries, so there are a lot of difficulties in analyzing status for the scope of money exchange. So, a study that can minimizes errors in collecting data is required and systematic and steady study is urgently needed.

여러가지 벽체조건을 가진 밀폐공간에서 열적쾌적에 대한 수치해석 연구

권용일,권순석 東亞大學校 大學院 1995 大學院論文集 Vol.20 No.-

This study is investigated for predicting a comfort region in the rectangular enclosure assumed Ondol cavity. Thermal environment is actually a combination of air temperature, mean radiant temperature, air velocity, humidity and two personal factors(clothing insulation and activity level) that will influence a person's perception of warmth or coolness. A comfort region is predicted by obtaining operative temperature(OT). The operative temperature is related with radiant and convective heat flux. The operative temperature of comfort region(thermal neutrality) is 20-24℃ at clo=0.1, met=1.2, RH=0%, -0.5<PMV<0.5 and PPD<10%. Radiant and convective heat flux is obtained for various adiabatic walls. This study is carried out a two dimensional numerical analysis by SIMPLER method. Radiant heat flux is obtained by a simplified zone analysis method. And shape factor is obtained by direct integral method.

표면 마무리와 복합레진 수복물의 변연누출에 미치는 영향에 관한 연구

노용관,김미경,백병주 全北大學校 齒醫學硏究所 1992 전북치대논문집 Vol.10 No.1

The purpose of this study was to evaluate the marginal leakage of esthetic restorative materials according to the finishing and polishing technique in primary molar. 50 cavities were prepared on occlusal surface for dye penetration test and divided into 5 experimental groups according to the finishing and polishing technique : Group Ⅰ was not treatment and Group Ⅱ, Ⅲ, Ⅳ, Ⅴ were respectively finished and polished with carbide bur, sof-lex, super snap, diamond bur. All the specimens were then thermocycled in a range of 4℃∼54℃ and immersed in 2% methylen blue dye solution for 24 hours and sectioned with low speed diamond cutter into two parts under water condition. All the specimens were observed at enamel―resin interface with light microscope and statistical analysis was peformed. The obtained results were as follows : 1. The mean value of the dye penetration length was similar in each group and was not significant, statistically(P>0.05). 2. The mean value of the dye penetration score was slightly lower in group Ⅲ, but the difference was not significant statistically(P>0.05). 3. Group Ⅰ, not treated with finishing and polishing, shows slightly higher value in both dye penetration length and score of the other groups(4 groups) treated with finishing and polishing. But statistically, there was no significant difference(P>0.05).

운동선수의 임장불안에 대한 연구

홍관이,이광재,김두경,부기원,노성규,한상준,박기동,오수일,문병용,이철규,박장평,엄기진,박남환 江原大學校附設 體育科學硏究所 1984 江原大學校附設體育科學硏究所論文集 Vol.- No.9

This study is designed to grasp the elements and situations of stage fright in order to propose a part of ways to cope with it. We make 511 top-class high school players, male and female, in the central districts (Seoul, Inchon, Kyungki, Chungbuk, and Kangweon Province) on object of questionnaire, and get the following results. Through players generally have all-round characters they show weakness in the superiority and emotional stability while showing strength in the sonformity. This fact comes to be related to the elements which cause stage fright. Physiological changes also have many effects on the symptom of stage fright. Especially, stage fright increases when players show sensitive reaction to the self-consciousness of final consequence which comes from the tension or uneasiness of sympathetic nerve, Thus, it turns out that players make use of reducing psychological burden by physical exercise or adjusting the level of demanded result in order to release the stage fright.

靑少年의 身體的 發育發達에 關한 硏究

洪寬伊,文炳容,盧成圭,吳壽一 江原大學校附設體育科學硏究所 1987 江原大學校附設體育科學硏究所論文集 Vol.- No.12

This study in to know the development transition of juveniles age(10∼17 of ages) about the relationship of natural developmental, patterns, according to sexes, ages and regions by vertical and crossing methods. To analyze the degree developed through intended training and its related meaning, the objects are chosen from 4 regions(urban, farming and mining community etc). The objects for vertical study are 2000 persons : crossing study, 6400 : experimental study, 320 The results through analyzing statistical date by electronic computer, based on the materials investigation, measurement and experiment, from July 1 to Nov. 30 1987, are following 1. The aspect of the form This report was represented that the body measurement value of the height, the weight, the chst-girth, and the sitting height was continuously increased the growth development till 10∼17 age, according to increased with age, and the cross-sectional change have a tendency both for male and female to excess crossing change. 2. The aspect of the function (in the viewpoint of action fitness element) 1) This report was showed that the fitness of the male continuously in creased till 17 ages, and that of the female in distinctly decreased or maintained after 14 ages. 2) The exercise items prevailed the crossing change were the speed (100M sprint), the power (throwing) and endurance of total body (longtime running (female)) And the exercise items prevailed the vertical change were the power (long jump), endurance (muscle endurance : chinning, chin hanging, sit-ups, endurance of total body : 800M and 1,000M lony-time running) 3. The results through experiments 1) Grip strength (1) Maximal strength The development of strength is almost parallel to the development of body and it shows rapid development speed, especially, in the adolescent juveniles. (2) Muscle Endurance There are outstanding development in both sexes. Because the development speed become slow after being 15 of ages, applying muscle endurance training from being 14 of ages is effective. 2) Long-time running In both sexes the rate of increase is high after they are 15 years old (or after being of 15 ages). To anticipate the good effect of training of long-time running, therefore, it is effective to apply the training after they are 15 years old (or after being 15 ages)

브러시레스 DC 모타의 最大起動 토오크를 위한 Hall Effect Sensor와 스테이터 코아 間의 最適配置

權鏞寬,兪榮植,李尙燁 成均館大學校 科學技術硏究所 1992 論文集 Vol.43 No.2

This paper describes how to arrange a hall effect sensor of brushless DC motor for the maximum starting torque and low torque ripple. To decide the optimal positioning of a hall effect sensor, the effect of time constant and hysteresis on hall effect sensor is considered. The 66° (E) is calculated as the optimal positioning between a hall effect sensor and a stator core for the maximum starting torque. But 68° (E) is demonstrated as the real positioning for the maximum starting torque through the test.

에폭시 수지 복합재료의 트래킹열화에 미치는 충전제와 자외선의 영향

박용관,조한구,김희곤 成均館大學校 科學技術硏究所 1994 論文集 Vol.45 No.1

This paper studies on the effect of ultraviolet light and filler on the tracking characteristics of epoxy resin which is widely used to enhance the insulation capability of materials. The specimens employed in the study were bisphenol and cycloaliphatic epoxy resins filled with Si0_2. A low-pressure mercury lamp was used as the source of UV light. In order to see the phenomena of tracking of the specimen, the expoerimentation is performed to the tracking apparatus(IEC, Publication 587) which mainly used under severe ambient conditions.

현대 박물관 건축에 나타나는 상징성의 유추 근거와 구현 방식

이관석,이용훈 대한건축학회 2004 대한건축학회논문집 Vol.20 No.4

This study shows how an architect, when he designs a museum, analogizes symbolism and clarifies relations between the basis of analogy and its characteristics through the classification of materialization methods of symbolism. The basis of analogy can be divided into two groups: ①an analogy based on internal reason like an exhibition program; ②an analogy based on external reason like a sense of place. Two materialization methods are a symbolism expressed partially and a symbolism expressed wholly. The former can be classified into two cases: ①disposition of a specific object in the foreground; ② exposure of sheds or skylights. The latter can also be divided into two: ① imagination of a museum formally; ②consideration of a sense of place. Among them, the example which considers a sense of place corresponds to an analogy based on external reason, the others are results of an analogy based on internal reason. In the case of the analogy based on internal reason, a museum can catch sight of visitors easily due to a distinction against neighboring context. In the case of the analogy based on external reason, a museum can be harmonized easily with environment formally or metaphorically.

Time and Reality in Gabriel Garcia Marquez's One Hundred Years of Solitude and Vladimir Nabokov's Pale Fire

李龍官 水原大學校 1990 論文集 Vol.8 No.-

우리시대는 계시의 시대다. 계시라는 말속에는 이 세상의 종말이 가까웠다는 의미가 숨겨져 있다. 계시적 사고는 순화적 시간관에 바탕을 두고 있는 것이 아니라 직선적 시간관에 그 바탕을 두고 있다. 그것은 다가올 종말에 대해 위기의식을 조장한다. 그러나 역사적으로 볼 때 종말론은 그 어느 시대에도 존재했기에, 계시는 우리 눈앞에 임박해있기 보다는 항상 내재해 있다고 말할 수 있다. 우리는 위기의 순간을 창조함으로써 스스로에게 의미를 부여한다. 이 세상의 종말에 가서는 계시의 현현으로 허구적 문학은 파멸될 지경에 이를지도 모른다. 그러나 종국에 이르기 전까지 예언적 게임을 할 수 있다는 것이 포스트모더니즘 작가들의 기본 사고방식인 것이다. 20년대부터 대략 40여 년간을 풍미했던 모더니즘 작가들이 과거를 재생산해 냄으로써 과거와의 관계를 강조했다고 한다면, 60년대 이후의 포스트모더니즘 자가들은 과거와의 단절을 꾀하고, 역사에 의존하지 않고 종말과의 관계 속에서 현재를 추구한다고 볼 수 있다. 따라서 포스터모더니즘은 모더니즘에 비해 상대적으로 더 허무주의적이고 분열적인 성격을 띈다. 포스트모니즘은 언어, 시간, 역사, 리얼리티에 대한 회의감으로 얼룩져 있다. 본고는 포스트모더니즘 초기의 대표작품이라 할 수 있는 마르께스의 『백년간의 고독』과 나보코프의 『희미한 불꽃』을 실제 분석해 봄으로써 전술한 포스트모더니즘의 성향을 구체적으로 이해하는데 목적이 있다.