초등학교 교과전담 교사 제도 개선 방안 연구

성기훈,박기호,임영무 서울교육대학교 2001 한국초등교육 Vol.13 No.1

The purpose of this study is to identify the problems in current departmental system in elementary school and to suggest some propositions for the development. In order to accomplish this purpose, this study surveyed the history of the developmental system, the present condition, and the point of view of elementary school teachers. On the basis of results analyzed in this study, the following conclusions were made. (1) The problems in current departmental system lie in shortage and selection of departmental teachers. In order to solve these problems, departmental teachers should increase and inservice education for departmental teachers is needed. (2) Subject matters for departmental teachers should be centered on physical education, music, art, English. Departmental teachers should be selected among specialists. (3) Class times per week for departmental teachers should be 15∼19. (4) Inservice education for departmental teachers should be operated in the teacher's education institute, university of education. Contents for education should be emphasize skill education, teaching exercise, teaching method. (5) Elementary school departmental teachers should be educated at university of education.

판형 열교환기의 OTEC 플랜트 적용에 관한 연구

천원기,강상훈 제주대학교 산업기술연구소 2000 尖端技術硏究所論文集 Vol.11 No.2

Plate heat exchangers have less limitation on space and weight because they can be small with higher heat transfer coefficients rather than air-cooled, shell-tube, and plate-fin heat exchangers. And, heat exchange can be efficiently performed even though the temperature difference of sea-water is small. They also have expense reduction effect in case that we use expensive materials for corrosion prevention and have merits of cleaning and changing design easily. So, plate heat exchangers are more suitable for evaporator and condenser of OTEC system.

PCB부품 자동삽입기의 효율적 삽입경로에 관한 연구

문기주,윤상섭,김상현 한국경영과학회 2000 한국경영과학회 학술대회논문집 Vol.- No.2

For miniaturization of electronic parts and higher productivity, part arrangement job of PCB(printed Circuit Board) has been replaced with complete automated facilities, and contribution which is concerned about this will be expanded continuously. Such part arrangement job of PCB could have lots of influences to entire productivity. In this paper, effective grouping method of parts is suggested for the effective insertion path job of PCB concerning the constraints to the size of parts.

綠茶에 대한 고등학교 교사의 意識과 行動에 關한 硏究

李聖愛,李孝枝 漢陽大學校 韓國生活科學硏究所 1993 韓國 生活 科學 硏究 Vol.- No.11

Green tea is a tasty beverage which is made by dropping or brewing in the boiling water tea leaf processed. This study's purpose was to survey the view and behavior of the highschool teacher for the Korean green tea and survey was conducted with questionnaire method. The result found through the analysis of SPSS / PCT system as followes : 1.The awareness for Korean green tea Some in their twenties or thirties, they say that they experienced a taste of tea when they were college student, and other in their forties or fifties after graduation. The motive of the awareness of the tea came from friend or comrade and the places to get tea was school, home and tea-shop and it was a bit bitter to the taste at first. They say that tea is necessary in our daily life and tea manners need to be changed to fit to our modern life. While they consider that tea manner is in connection with mental culture and needs to be developed into our life culture. They took Korean tea for Chinese traditional tea. Most of them consider that we have to drink tea made in Korea, thus reduce import of coffee, however, they are not informed about the fact that is relative to holidays or Harvest Moon Day (Chusok) 2.The present circumstances of life In their twenties or thirties they drink tea at a resting time and in thier forties at the time of tired. In addition the reason to drink tea is for their health and mental training, however the reason not to drink is that simply they don't have a habit for it. They have Korean tea with their companions at tea break, and their period of tea life was as a whole within one year. Those who are older bought the tea utensil more than the younger, and they thought that the tea utensil was expensive and that it was rather necessaries of life than luxuries or artistries. They thought that the price of tea was expensive, but they were mainly having Korean tea, and they treated visitors simply without formality when tea was treated. They had tea only or in case, in addition to other things, They knew that tea is good for physical and psychological health. 3.The present circumstances of tea manners in education Many Buddhists were reading the book on tea and mostly school mistresses have ever learned the tea manners through training of company or meeting for tea. They think the tea manners are needed as it would be helpful to our emotional, physical and spiritual health of a man. There were some people thinking it is no use for the complex manners. Some teachers intend to have training on the tea manners to know our traditional things, and others don't like to for they dislike the difficult manners.

백서에서 Chlorpromzaine,Haloperidol,Clozapine이 뇌파에 미치는 영향

정성훈,박영남,이만기,박진숙 대한생물치료정신의학회 2000 생물치료정신의학 Vol.6 No.1

To evaluate the differential elects of chlorpromazine, haloperidol, and clozapine on electroencephalographic (EEG) changes, EEG findings were compared in normal, relaxant, and schizophrenic animal models produced with MK-801 by using power spectral EEG analysis. Under pentobarbital anesthesia, the screw electrodes were implanted on the skull over the frontal cortex for EEG recording. The EEG was recorded before and after intraperitoneal administration of clozapine(5mg/kg), chlorpromazine(5mg/kg) and haloperidol(1mg/kg) in rats while awake(the normal group), rats pretreated with a relaxant pancuronium bromide(the relaxant group) and rats pretreated wish MK-801(0.2mg/kg, i.p., the MK-801 group). Spectrum analysis of the EEG was used to calculate the powers of each band (delta 1-4Hz; theta 4-8Hz; alpha 8-l3Hz; beta L 13-21Hz; beta H 21-30Hz; gamma 30-50Hz; and total 1-50Hz). The EEG activity was presented as the log value of the relative band power. In the relaxant group, clozapine increased the activity of the delta, theta and alpha bands. Chlorpromazine increased the activity of the betaL band as well as the delta, theta and alpha bands and it decreased the activity of the gamma band. However, haloperidol did not change the activity of all bands significantly. In the MK-801 group, clozapine increased the activity of the delta and gamma bands and chlorpromazine increased the activity of the delta, betah and gamma bands significantly, Haloperidol increased the activity of the alpha and betaL bands significantly. To evaluate the differential effects of antipsychotics on EEG between the groups, the ratio of power change after a drug as referenced to pre-drug power in each group was calculated and compared between the groups and was represented by star-like display. In the star-like display, clozapine showed the smallest change and caused a slight shift upwards and to the left, chlorpromazine showed irregular changes, haloperidol showed similar increases along each band.

불규칙파에 의한 준설된 2차원 수로에서의 반사율에 관한 실험적 연구

박상길,김가야,김남기 釜山大學校生産技術硏究所 1999 生産技術硏究所論文集 Vol.57 No.-

본 연구의 목적은 잠제나 기타 구조물에 비해서 파랑제어의 효과는 다소 적지만 트렌치의 설치로 인한 트렌치 전면에서의 반사율을 2차원 수리모형 실험을 통하여 규명하는데 있다. 방파제, 이안제, 돌제 그리고 잠제 등의 구조물에 대한 기존의 방사율 연구에 관한 자료는 많이 있으나 트렌치에 관한 연구는 거의 없는 상태이다. 트렌치를 설치함으로써 해수의 순환, 시공비 절감과 시공의 용이성, 이용수역의 확대, 그리고 준설후의 토양을 해안에 양빈함으로서 토사의 재이용 등의 효과를 기대할 수 있다. 실험방법과 해석은 Goda에 의해서 제시된 2점 관측법을 사용하였으며, 반사율의 변화를 규명하기 위해서 파랑과 트렌치 단면의 제반조건의 변화에 따라 파형경사, 상대수심, 상대파고에 따라 반사율을 비교 검토하였다. 그 결과 트렌치를 설치하였을 경우가 반사율이 크게 나타났고, 반사율의 전반적인 범위는 0.4∼0.7정도의 값을 나타내었다. The purpose of this study is to estimate reflectivity of trench and compare with the others by 2-dimension fixed hydraulic experiment in front of it though it is less effect than submerged breakwater of other structures in the wave control. There are many sources for reflectivity of structures such as breakwater, groin, jetty, and submerged breakwater except trench which is dredged channel. Trench, if constructed, will have more effect of seawater circulation, reduction in coast, ease in construction, expansion of water area, and sand recycling than the others. 2-point measurement which was suggested by Goda was used to analyze reflectivity and the ratios of wave reflection are compared for the wave steepness, relative depth, relative wave height. The result of this study shows higher reflectivity when trench constructed and the range of wave reflection was from 0.4 to 0.7.

판형 열교환기의 OTEC 플랜트 적용에 관한 연구

천원기,강상훈 濟州大學校 産業技術硏究所 2000 산업기술연구소논문집 Vol.11 No.2

Plate heat exchangers have less limitation on space and weight because they can be small with higher heat transfer coefficients rather than air-cooled. shell-tube. and plate-fin heat exchangers. And, heat exchange can be efficiently performed even though the temperature difference of sea-water is small. They also have expense reduction effect in case that we use expensive materials for corrosion prevention and have merits of cleaning and changing design easily. So. plate heat exchangers are more suitable for evaporator and condenser of OTEC system.

음향방사로 인한 주기구조물에의 모우드 해석

박상기,임경택,이동하,김택현,김종태 朝鮮大學校 機械技術硏究所 1999 機械技術硏究 Vol.2 No.2

In this study, the mode shape of infinite fluid loaded plate is examined. The stiffeners are assumed to be equally spaced and exert only force on the Plate. The response of a fluid loaded ㄷ-type stiffened plate to a convected harmonic pressure and the far field radiation Produced by a point force excitation have been found by using Fourier transforms, a method which is particularly useful when fluid loading is included. At low and high frequencies the far field Pressure for a point excited stiffened plate is dominated by the fluid properties and the properties of the plate at the point of excitation. Mode in the far field pressure is found at the given direction of scattering frequencies, and in these frequencies the stationary phase wave frequencies are found to coincide with the free wave propagation constants for the stiffened plate. Also, the variation in the modes of the sound pressure level is increased with the increases of the bay space and in the bay area

進饌儀軌(卷之三, 卷之四)

李盛雨,李孝枝 漢陽大學校 韓國生活科學硏究所 1986 韓國 生活 科學 硏究 Vol.- No.4

대구경 볼트와 와이어텐션을 이용한 슬래브 보강공법에 관한 실험적 연구

서동기,노현섭,김상모,이창남,김상섭 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)

As time goes up, structural capacity of members decreases in reinforced concrete structures. The deterioration of the capacity is mainly due to the poor construction, corrosion of steel bars and the neutralization of concrete due to environmental pollution, etc. This deterioration is unavoidable, thus it is necessary to develop the method for repair and retrofit of structures in order to ensure structural safety of members. The purpose of this paper is to investigate the load-deflection, ultimate strength, failure mode, and energy absorption capacity of reinforced concrete slabs subject to load experimentally for several variables and grasp the problem of concrete slabs strengthened with large diameter bolts and wire tensioning. And propose foundational research data for4 strengthening reinforced concrete slabs. The test result shows that the capacity of anchorage is controlled by bearing capacity of concrete under the anchorage or punching shear around the anchorage. And the gap between bolts and core hole must be filled to prevent slip and rotation of anchorage.