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An algorithm to automatically extract coordinate and time information from optical observation data of geostationary orbit satellites (GEO satellites) or geosynchronous orbit satellites (GOS satellites) is developed. The optical wide-field patrol system is capable of automatic observation using a pre-arranged schedule. Therefore, if this type of automatic analysis algorithm is available, daily unmanned monitoring of GEO satellites can be possible. For data acquisition for development, the COMS1 satellite was observed with 1-s exposure time and 1-m interval. The images were grouped and processed in terms of “action”, and each action was composed of six or nine successive images. First, a reference image with the best quality in one action was selected. Next, the rest of the images in the action were geometrically transformed to fit in the horizontal coordinate system (expressed in azimuthal angle and elevation) of the reference image. Then, these images were median-combined to retain only the possible non-moving GEO candidates. By reverting the coordinate transformation of the positions of these GEO satellite candidates, the final coordinates could be calculated.
This is the fifth part of series of reports on the study on a blanced-type oscillating tillage implement using triple blades system. Previous reports were made on the characteristics of power requirement and vibration with which tillage implements were oscillated parappep and perpendicular to the travelling direction. In this paper, the locus and motion analysis of the tillage blade and factor analysis were carried out. Obtained results are as follows : 1. The loci od the blade edge were described as helix curve at vertical oscillation and as lacerated curve at horizontal oscillation to the soil bin movement. 2. The motion equations of blade edge are estimated as follows. Vertical forced vibration ?? ?? Horizontal forced vibration ?? ?? 3. The multiple regression equations for resultant oscillating acceleration draft, specific resistance, and torque were established by using frequency, amplitude, life angle of tillage blade, and velocity of carriage as indepentent vibrations, respectively. 4. By reducing the velocity ratio is increased providing higher effect of the reduced draft. But this effect contradicted to achieve the reduced osillating acceleration. Both effects should be considered simultaneously to find out the optimum operating condition. 5. The reduction effect of the oscillating acceleration was slightly favoured to the horizontal forced vibration type, but traction efficiency could be lowered due to the increased slippage. Therefore, it can be concluded that the vertical forced vibration type is more appropriate considering overall performances. 6. From the experimental results, the optimum operating conditions of the vertical forced vibration type are recommended as follow ; life angle 30 degree, operation velocity 0.15 metre per second, amplitude 4-6 millimetre, and frequency 22.5 hertz.
Reaction conditions and catalysts were investigated for direct CF₃I synthesis. Optimum reaction temperature was determined by pyrolysis of CF₃H and catalytic reactions. Reactions with changing oxygen concentration were performed. As a result, yield of CF₃I increased with decreasing oxygen concentration. Catalytic activity was changed with the weight ratio of the used metal salts. This result was stemmed from the change in the pore size of activated carbon by the metal salts. The optimum reaction conditions were: 600℃, space velocity of 45 hr^(-1), and with 7wt% KF/AC catalyst.
은행나무에 관한 연구를 하는데 필요한 기초자료를 제공하기 위하여 은행나무의 생화학적 특성을 조사하였다. 은행잎에서 추출한 단백질은 14종류로 각각의 분자량은 58.5K(58,500Da). 57K, 42.5K, 37K, 33K. 29K, 27K, 24K, 22K, 19K, 18K, 17.5K, 17K, 15K 였으며 그중 29K 단백질이 가장 많았다. 29K 단백질은 수그루에서 보다 암그루에서 더 많은 양이 검출되었으나, 암그루와 수그루사이에서는 단백질의 종류에 차이가 없었다. Genomic DNA의 추출은 액체질소에서 homogenization 한후 유발에 sea-sand를 첨가하여 더욱 철저히 세포를 파괴시킴으로서 가능하였다. In order to offer basic data about gingko trees, the biochemical properties of a gingko tree were investigated in this experiment. 14 types of protein were detected from gingko leaves and their molecular weights were 58.5K(58,500 Da), 57K, 42.5K, 37K, 33K, 29K, 27K, 24K, 22K, 19K, 18K, 17.5K, 17K and 15K, respectively. The 29K protein of them was dominant in both male and female leaves. The 29K protein was detected much more in female leaves than in male leaves, but there was no difference in sorts of protein between male and female trees. The genomic DNAs were successfully extracted by adding sea-sand to the gingko leaves in mortar, which were rehomogenized after homogenization in liquid nitrogen.
국내에서 생산보급되고 있는 動力耕耘機用 8PS 디젤기관의 騷音 狀態를 파악하고자 消音器 전방 1m 위치 및 운전자 위치에서의 모터 구동시와 연소 구동시 각 회전수별 騷音을 측정 비교 분석하고 기관에서 발생하는 소음중 에너지 비율이 가장 높은 排氣音을 제어하기 위해 소음기를 부착시와 소음기 제거시 및 空洞의 體積을 변화시킨 경우의 각 回轉數別 騷音度, 燃料消費率, 出力 등을 측정 분석하여 현 소형 디젤기관의 騷音 減少方案 모색의 기초자료로 제시하고자 실시한 시험의 결과는 다음과 같다. 1) 機關의 回轉數가 증가함에 따라 騷音은 높아지는 것으로 나타났으며, 기존 機關의 경우 機械騷音은 85dB 이상으로 이의 騷音低減對策이 필요하다고 생각된다. 2) 消音器 附着時와 除去時 무부하 운전시와 전부하 운전시 騷音은 소음기 부착시가 제거시에 비해 각각 4, 13.1dB 정도 낮게 나타나 비교적 소음감쇄 효과가 높았다. 3) 空洞體積 變化에 따른 消音器別 騷音은 기존의 소음기 T-Ⅰ 보다 空洞의 체적을 증가시킨 T-Ⅱ, T-Ⅲ가 운전자 위치 및 소음기 전방 1m 위치에서 無負荷 運轉時 각각 1.9∼2.3dB 및 2∼2.8dB, 全負荷 運轉時 각각 4.9∼5dB, 7.1∼7.5dB 감소한 것으로 나타났다. 4) 각 회전수별 燃料消費率은 T-Ⅰ, T-Ⅱ, T-Ⅲ가 거의 같은 경향을 나타냈으나, 소음기를 제거한 경우는 약 17g/PS·hr 정도 낮게 나타났다. 또, 출력은 소음기를 부착한 경우가 제거한 경우에 비해 각각 0.55PS 낮게 나타났다. 5) 排氣騷音을 최대한으로 감소시키기 위하여 금후 機關出力 감소가 적고, 騷音 減少效果가 높은 形態의 消音器 開發硏究가 이루어져야 할 것으로 생각된다. This study was conducted to evaluate the noise characteristic of 8PS agricultural diesel engine through the modification, was found to provide the foundamental data that could be used to reduce the noise of the engine. To evaluate the noise characteristics on the agricultural diesel engine by the muffler, noise level, specific fuel consumption and output were measured in case of the with and without muffler and three different volume of muffler cavity. The results of the study are summarized as follows: The noise increased by the increament of revolution velocity. The mechanical noise of power tiller indicated more than 85dB at 1,800∼2,200rpm. Therefore, to minimized bearing ability of operator, it was thought that the countermeasure of noise reduction need. The noise level with the muffler was smaller than those without muffler by 4dB, 13.1dB. respectively. In case of increased the volume of muffler cavity, the noise level at the position of working seat was decreased 1.9∼2.3dB at the time of no-load condition and 4.9∼5dB at the time of full load, respectively. The specific fuel consumption of the without muffler type was 17g/PS hr lower than the with muffler type. The output of the without muffler type was 0.55PS higher than the with muffler type, respectively. To reduce of the exhaust noise, it is necessary to continue researches on the relationship between complex factors of the noise.
The purpose of this study was to analyze the language categories of children with mental retardation in the application of dynamic language programs. Three children with mental retardation were participated to analyze the language categones. The dynamic language programs were developed to apply between normal children and the subjects. Three normal children who were attending same classes with the subjects used the programs to interact with the three subjects. The investigation design without any research design was utilized for experimental research. Total ten sessions were applied. The time of each sessions was thirty minutes. The language categories based on B. F. Skinner's verbal behavior such as echoic, mand, tact, intraverbal, codic, and autoclitic were collected from thc three children with mcntal retardation when the three children interact with the three normal children responded from the normal children’s asking by thc language programs. The results were that: (a) language categories were analyzed by the programs; and (b) the most frequently language was intraverbal, and the second frequency of the language responses was autoclitic, howcver, the other four language categories were not presented. Thcrefore. this study concluded that the intraverbal is most important language cate당 ory for the children with mental retarded 본 연구의 목적은 정신지체아동과 또래아동과의 상호작용 프로그램을 적용하여 정신지체이동의 언어유형을 분석하고자 하였다. 언어유형은 B. F. Skinner의 Verbal Behavior 역동적 이론에 기초한 복제, 명령, 지칭, 상호, 기호, 자발언어 등이다. 프로그램 적용 방법은 역동적 방법을 이용하여 접근하였다. 연구대상은 초등학교 특수학급에 재학중인 정신지체아동 3 명이었다. 정신지체아동의 또래 아동과의 상호적용에서 나타난 언어유형은 상호언어와 자발언어였다. 상호언어와 자빌언어의 증감은 상호 영향을 미치고 있었다. 따라서 상호작용을 통한 언어지도 방안이 정신지체아동의 언어지도의 기초가 될 수 있음을 본 연구결과는 시사하고 있다.
7차 교육과정에서 지리교과는 국민공통교과인 사회, 일반선택교과인 인간사회와 환경, 심화선택교과인 한국지리, 경제지리, 세계지리로 구성된다. 현행 통합사회과는 지리영역과 일반사회영역이 하나가 된 영역별 통합교과로서 함께 교수를 하면 비전공영역이 있게 되고, 분과별과 교수하면 교육과정 시행상에 위배가 되는 결과를 낳는다. 지리교사들은 통합사회과 운영이 성공적이지 못하다고 생각해서 철저히 분과적 운영을 원하고 있다. 또한 7차 교육과정의 통합사회과에 대비한 교사들의 준비가 미흡해서 학습자들에게 교육적인 피해를 줄 수 있는 구조적인 문제를 가지고 있다. 그렇기 때문에 지리교사들은 통합사회과 운영을 위해 주로 방학중 연수를 통해서 준비를 많이 하고 있으며 교육과정을 시행하기 전에 미리 체계적인 교사 연수를 하거나 교원양성대학의 교육체계가 개선되어 준비가 되기를 강력히 원하고 있다. 아울러 교육과정을 개정할 때는 학교 교육환경과 지리교사들의 의견을 충분히 참작하여서 현실감있고 실현 가능성 있는 교육과정이 준비되도록 노력해야만 하겠다. 지리교육을 통해서 학습자들에게 내면화될 가치관과 일상생활에서 적응하여 표출될 삶의 태도가 잘 형성되도록 학습자료와 교수학습 방법을 개선해 가야만 하겠다. In the 7th Curriculum, Geography consists of Social Studies(a national common subject), Human Society and Circumstances(a general selective subject), Korean Geography, Economic Geography, and World Geography(special selective subjects). Among these subjects, integrated Social Studies, which is composed of two categories, Geography and General Society, has two major problems; one is that there is a danger that non-majoring teachers may teach students when teaching as an integrated subject, and the other, that there may come a result that teachers go against the spirit and the rule of the 7th Curriculum when teaching as a divided subject. The most Geography teachers, thinking that it is unsuccessful to teach the subject as an integrated one, want positively Social Studies of the 1st graders to be instructed as a divided subject. And they insist that the integrated subject has structural faults and that they should have been prepared for the subject before the curriculum started. Curricular revision should take place, based on reality and realizability, with education circumstances of schools and opinions of Geography teachers fully considered in advance. Geography teachers should improve their teaching materials and teaching-learning methods in order for learners to form well the view-points inwardly and the attitudes for life outwardly through Geography education.
Some experiments were carried out with a view to finding out the means of supplying hygienic food to the students at schools. To find out the source of infection, the researcher counted the number of bacteria found in the cafeteria trays which were treated under different conditions of sterilization. The number of bacteria found in side dishes was also counted. The following are the results : School cafeterias in general sterilize their trays by putting them in the hot airsterilizer at 110℃ for two hours after they clean them with an automatic dishwasher. These trays contain relatively many bacteria(91 bacteria per tray at P Elementary School Cafeteria ; 1,087 bacteria per tray at N Elementary School Cafeteria). If the trays were filed up at intervals of 2~3mm in the hot air sterilizer, however, the number of detected bacteria was remarkably decreased under the same condition of sterilization(4 bacteria per tray at P Elementary School Cafeteria ; 14 at N Elementary School Cafeteria). 6,675 bacteria per gram were detected from cabbage salad and 60,682 bacteria per gram were detected from cucumber mixture with red pepper paste. The source of infection in case of cabbage salad was mayonnaise. Red pepper paste was the source of infection in case of cucumber mixture, but most of bacteria found in red pepper paste were benefical ones, Bacillus subtilis.
This study was designed to exam the aged's needs for spiritual nursing care. The purpose was to serve as a basis for the development of spiritual nursing practice. The major findings are as follows : 1. The degree of needs for spiritual nursing care as area was that needs of love and relationship mean 22.0, needs of meaning and object mean 28.2, needs of forgiving mean 13.5. Total needs for spiritual nursing care mean 63.7, which was on the upper middle level. The needs of meaning and object was rated highest. 2. Among the general characteristics of the subjects, needs of love and relatiohship wasn't significanlty different. 3. Among the general characteristics of the subjects, needs of meaning and object was significantly different according to two factors : age(F=7.260, p=0.001), religion(F=5.275, p=0.001). Higher needs of meaning and object was possessed by the older than the younger, by the one who have religion than the other. 4. Among the general characteristics of the subjects, four factors made a significantly difference to needs of forgiving : sex(t=-2.851, p=0.006), age(F=8.201, p=0.001), religion(F=6.928, p=0.000), disease(t=2.327, p=0.024). Higher needs of forgiving was possessed by man than woman, by the older than the younger, by the one who have religion than the other, by the one who have disease than the other.