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Since 1997, the Korean Government has increasingly introduced CM(Construction Management) system which is a new project delivery system, with the opening of the construction market. In case of Korea, not only the applicable criterion of CM but also definition of that has not still established. This study aims to minimize trial and error that may occurre when CM is applied to the domestic construction by examining the background and progress of the American CM system. Consequently, in this study, proper method to apply CM to this country is suggested by synthesizing CM business standards of GSA and other organization and analyzing the role and responsibility of CM
The programs of two models(Reynolds Stress Model and Algebraic Stress Model) were developed and the distribution of mean velocity and buoyancy by RSM and ASM were computed to compare with experimental data in two-dimensional buoyant surface jet. The results of numerical analysis are derived : 1. RSM and ASM yield satisfactory prediction of distribution of mean velocity and buoyancy without regard to densimetric Froude number F_do in momentum domain region and transition region. 2. But, the computed results of distribution of mean velocity and buoyancy by two models are not in agreement with the experimental data correctly without regard to densimetric Froude number F_do in buoyancy domain region.
In this study, with a purpose to establish the standard construction contract conditions, the FIDIC conditions of contract and ther corresponding legal systems from the various domestic laws and regulations, used as the construction conditions, were compared. The study shows problems such as inconsistence and atypicality between current provisions and FIDIC contract. The possibility of claim occurrence in Korea construction market is significant. Through a comparison of domestic and foreign construction contract, the study presents that domestic contracts don't have provisions about the procedure of submission, engineer's responsibility and authority, and effective procedure of claims. The study also presents techinical considerations under the FIDIC Contract by Employer and Contractor.
본 연구는 종교방송 기부자들의 종교적요인인 종교생활기간과 방송청취시간이 기부행동을 유도하는 요인으로서 어떠한 작용을 하는지를 고찰하고자 한다. 특히 기부자요인이 관계품질과 기부의도에 미치는 영향에서 기부자의 종교생활형태의 한 요소인 종교생활기간과 종교방송청취시간이 기부자의 기부요인, 관계품질과 기부의도에 영향이 미칠 것으로 판단하여 이론적 배경을 중심하여 연구모형과 가설에 의한 실증연구를 통해 검증하였다. 종교생활기간은 기부자요인 요소인 자아존중감과 신앙성숙도와 기부기관관계정도에 영향을 미치며 방송청취행태인 청취시간은 신앙성숙도와 기부기관관계정도에만 영향을 미쳤다. 관계품질과 기부의도는 종교생활기간이나 방송청취시간 모두가 영향을 미치는 것으로 나타났다. 따라서 기부자의 기부의도를 유도하고 또한 이를 지속적으로 유도하기 위해 기부자의 종교생활기간 특성과 방송청취시간에 따라 각각의 다른 개념으로 세분화하고, 차별화된 기부자 관리가 필요함을 확인함으로 지금까지 연구에 비교적 소외되었던 종교생활과 방송청취행태에 관한 연구 필요성에 대한 중요한 시사점을 주었다.
This study was carried out to determine the optimum irrigation level for upland crops especially soybean through the analysis of their evapo-transpiratiion, growth and yield. The optimum irrigation level for each upland crop will enable us to calculate the project irrigation requirement for a design year. In this study, two varieties of soybean, Milyang 31 and Eunha, were cultivated in lysimeters in the farm of Chinju National University. The levels of irrigation were 29-26%, 25-22% and 21-18%, respectively. The soil moisture contents were maintained within a narrow range. From the experiment and analysis, the conclusions are derived as followings; 1. The numbers of branches, main stems and pods per plant, and the 100-grain weight of Milyang 31 and Eunha tended to increase as the irrigation level were changed from 21∼18% through 29-26% to 25-22%. 2. As the optimum irrigation level og 25-22%, the daily average evapo-transpiration of Milyang 31 and Eunha were 3.21㎜/day, 3.25㎜/day. The total evapotranspirations of Milyang 31 and Eunha were 276.23㎜, 312.11㎜. 3. The effective of the rainfall in the design year was 57.76% in case of Milyang 31 and 50.35% in case of Eunha. The net project irrigation requirements of Milyang 31 and Eunha were 288.23㎜ and 281.36㎜ respectively. 4. The intermittent irrigation days of both Milyang 31 and Eunha were calculated as 4days. The net irrigation requirement at a time was calculated as 28.72㎜, 29.04㎜ respectively.
Recently, the rational methods of pavement design and analysis using the resilient modulus as fundamental input material property have been increasingly adopted in major advanced countries. Since the development of 1986 AASHTO Guide for Design of Pavement Structures, many researches concerning reliable testing method have been actirely performed. Anticipating the use of resilient modulus based on pavement design and analysis methods in Korea in the near future, development of a standard test method of resilient modulus is needed suitable for subgrade soils in Korea. This paper presents a standard resilient modulus testing procedure suggested in this study.
In this study, I studied in order to know the precipitation surrounding Chinju area in a given time, the results obtained in this study are as follows: ① As the materials, I quoted from the paper of automatic raingage in Yungnam Land Construction Bureau of Nam River Dam. ② I select the precipitation in 24 hours, above 80㎜. ③ I gained the following formula, after I had studied the statistic analysis. i. e. γ_T=R_24/24(4.708/√R-0.0036) ④ I doubt whether this poor formula would be useful or not, because the period of observation is too short. (Standard Deviation σ=6.57)
This paper is the one with relation to the agricultural useful water, and then I inquired about the vestiges of the water supply constructs in order to control by the our ancestors. Total consumption water quantities were 1144.24mm as a result of investigated to the consumption water quantities in the rice farming. It is 149 hundred millions ㎥ that is necessary for our country now, therefore, we have need for more water than being. A devise of resolving to the problem belongs to de promoting of the water holding in the soil and the construction of multiple dam.
1. 강우 강도式을 算定하는 6가지의 式中가장 普遍的으로 使用하는 式(1),(2),(3)을 實測値에 依하여 統計處理한 결과 式(1)′(2)′(3)′式을 算出 하였다. 2. 式(1)′(2)′(3)′에 依하여 計算한 제3表 ⑭????란의 값과 ③란의 實測値를 比較하여 기 平均偏差를 求하여 본 결과, 式(1)′에 依하여서는 1.29, 式(2)′에 依하여서는 0.18, 式(3)′에 依하여 서는 0.21을 나타내었다. 이 結果 Sherman型인 I=a/t^n가 晉州地方의 降雨强度式을 求하는데 가장 適合한 公式型이다. 3. 式(1)(2)(3)은 모두 120분 以內의 시간에 적용하는 式들이나 이를 誘導式과 實測値와 比較檢討한바 큰 차이가 없으므로 그대로 適用하여도 무방하다고 본다. This study was carried out in order to calcu1ate the intensity of probability precipitation in Jinju area. The datas have the use of self-record paper of rainfall by Jinju weather bureau and of it more than rainfall of 60mm during 24 hours. Sherman, Talbot, Iwai method. In view of the results so far achieved, the intensity of precipitation was I=112.2/t+3.9, I=25.3/t^0.52, I=23.5/√t-0.08, Among these, Sherman Type, I=25.3/t^0.52 was the most tied with value of survey.
In Gyingnam province(Chinju, Milyang), the evapotranspirations used meteorological data during 5 years from 1993 to 1997 were investigaed for 8 months(from March to October) which crops brought up, and the evapotranspirations estimated by Blaney & Criddle method and Radiation method in each a period of ten days and each month showed table 2 and table 3. The required water of crops was able to calculate to multiply by the coefficient of crops which used the evapotranspirations. Blaney & Criddle method was considered as the formula recommended in Gyengnam.