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This study has been carried out as practical project for overall master plan and detailed landscape design of the Medical Complex, Chonbuk Nat'l Univ. This project has been stepped to 3 phases. Those are System Design phase, Pilot Design Phase and Landscape Design Phase. The System Design has involved the expected buildings' clustering and the circulation system structuring. Among that Buildings are there a nursing school, a life science research center, an auditorium, a dormitory, etc. This massing design has been conceived on two key concepts- one is clusterd identical open spaces and other's connected and naturalized paths. At the Pilot Design and Construction's Phase,on-site and off-site surveyes and analyses were preliminarily performed. The design components are dry pond with irish plants, naturalized walking paths, buffering hill and symbolized planting with pines and maples. This Plan was promptly realized on the inner court and college entrance after Official Staff Assembly's Permission. After this phase, the detaild landscape design was planed as to pavings, street structures and the plantings on the all remaining sites besides the pilot areas. The consideration of campus functional activities was fully adapted as multi purposed turf space. And the bike way circulation system is composed along the side walks and perstrain paths, which is most important moving mode to the campus students.
This study aims to investigate actual conditions of the supply of community facilities of cities in Korea and Japan, by surveying the number of facilities per unit population, and to obtain the fundamental data for regional planning in Korea through comparative analyses. Followings are the results of this investigation : 1) High correlations are found between the population and the number of facilities. 2) The original unit of facilities are classified into four types according to the size of the population and the population density. 3) In general the original unit of facilities and the population per unit facilities hold higher level in Japan than in Korea, but some kinds of facilities stand approximately the same level in both countries.
A section space plan accomplished divides for total six sections for example, physical exercise space, the exhibition space of sculpture, surrounding space of observational station, signal-fire platform, watershed space, foultry estuary.
Algal Growth Potential spike test of Sumjin River were carried out in order to identify algal growth limiting constituents. To investigate the water quality of Sumjin river, samples were collected 8 times during this study period at five station. BOD, T-N and T-P loading were sequentially caused by live stock, human activity, land and fish farm. The amount of BOD, nitrogen and phosphorus accumulated were respectively 12,165.1㎏/d, 2,416.9㎏/d and 1,119.8㎏/d. Particularly, 69 percent of total BOD loading, 66 percent of T-N and 92 percent of T-P loading resulted from live stock. Among the tested sites, W-1 point water greadly produced biomass up to 14㎎ dry weight of Selenastrum capricornutum/ℓ due to the fact that 0.1㎎ PO_4-P/ℓ addition of orther constituents are excessive. Therefore, Sumjin River were identified as extremely phosphorus-limited water for algal growth.
The purpose of this study is to estimate the removal efficiency of heavy metals and reclamation of wastewater and application to field plant as a new technology development using powder and ceramic filter made lf waste hard tissue. The major crystal structure is hydroxyapatite(Ca_10(PO_4)_6(OH)_2). The rising of pH according to powder dosage was showed up to pH8.0. However, these tendencies do not showed upper pH8.0. The hard tissue powder showed the preference of removal efficiency for heavy metals in the sequence of Zn>Cd>Pb, adsorption efficiency by competition in mixed component does not showed. The removal efficiency depend upon powder quantity at mixed component shows in sequence of Cd>Zn>Pb in shortage of powder dosage, Pb>Zn>Cd in sufficient. In the treatment of single component with the variation of heavy metal concentration, the break-point was showed in 20㎎/ℓ heavy metal conc., and in mixed component 10㎎/ℓ heavy metal conc. Reuse of waste hard tissue will give profits because quantity of waste disposal will be decrease and environmental purification will be accelerated by using the ceramic filter made from the waste disposal. And we can have the hard tissue cheaply.
The water quality criteria of the Yongdam basin is polluted over second grade. Trophic state in the area indicate supper eutrophic state. This study was conducted to analyze the distribution characteristics of the nutrient, and to find the interrelationships among them, focusing upon the eutrophication in the Yongdam dam basin. The results of this study were as follows; 1. Nutrients was estimated as total nitrogen of 1.021∼1,034㎎/ℓ. 2. The trophic state was supper entrophic, and the state of DO level was supersaturation in spite of high organic loads from the each tributary. 3. The limiting factor of the reservoir is T-P, according to the criteria of eutrophication. 4. After Dam construction, T-P concentration of 26㎎/㎥ and Korea Trophic State Index of 50 were predicted.
To investigate the water quality of the Yongdam dam, samples were collected 4 times during this study period at four stations each season. The water quality of the Youngdam as water temperature 20.1℃, pH 7.9, DO 10㎎/ℓ, BOD 2.1㎎/ℓ, SS 3.9㎎/ℓ, T-N 1.029㎎/ℓ, T-P 0.026㎎/ℓ was measured. This study was investigated for the pollution load of water quality in the basin of Yongdam. Pollution loading ; that BOD 27,646.7㎏/d, SS 104,508.5㎏/d, T-N 5,049㎏/d, and T-P 2,582㎏/d was estimated respectively. According to the inflowing stream loading, BOD loading was caused by livestock, population and land sequentially. SS, T-N, and T-P were contributed to livestock, population and land sequentially.
Many water bodies used for water supply may contain solid particles with a lower density. These solids are hardly removed in the sedimentation unit due to the own tendency of floating. In order to treat this type of water, the flotation process in known to be an effective method. A series of laboratory experiments has been performed to investigate the effect of natural organic matter(NOM) in raw water on flotation process. Foam formation potential(FFP) could be increase by NOM in raw water, alum is stimulate the trend of FFP to increase. Results of DAF treatment studies show that flotation efficiency can be increase by AOM, such as ethyl ester, sodium propionate, sodium dodecylbenzenesulfonate. Meanwhile, flotation efficiency can be decrease by AOM, such as glycerol, starch, pentane, peptone, isoamyl alcohol, humic acid etc. Also, the flotation efficiency by AOM corresponds well the tendency of FFP.
Lake eutrophication that bring about by excessive amounts of phosphorus and nitrogen becomes the main problem in Daechung Lake. To control the eutrophication like water bloom, it is important to quantify the nutrients loading and estimate the mass balance in the lake. In this paper, it was carried out to evaluate the nutrients discharging and characteristics of release in Daechung lake and investigate the effect of sediments on water quality. Also, it is suggested that the method of water quality management is required to improve it. The results of study are summarized as following ; 1. It is estimated that about 54% of input TP is accumulated in Daechung lake 2. It is surveyed that the mean range of TP release rate is 4.2∼10.1㎎/㎡·d at sampling sites of the lake 3. In order to improve the water quality of Daechung lake, it is needed the wastewater treatment plant and the sediment dredging of the lake preferentially.
Under natural condition, the accuracy of measured and predicted value of regular distribution plume model was not good. This study proposed the Multi-Layer Gaussian Dispersion Model which is based on plume rise model and Surface-corrected Gaussian Model, and is able to predict the concentration when meteorologic condition is change. And studied merit and utilization of Multi-Layer Gaussian Dispersion Model. The results was as follows ; 1. Multi-Layer Gaussian Dispersion Model showed the trustful concentration distribution by means of mass flux up to atmospheric boundary or earth surface in change of spatial meteorologic condition. 2. Multi-Layer Gaussian Dispersion Model was simulated in short time relatively, because this model was based on regular distribution plume model. 3. The consideration of earth configuration was relatively simple, because the concentration was simulated by mass flux in boundary condition. 4. Therefore, if this model is more expanded by what is consider the change of meteorology in spatial and according to time, this model is applied immediately in urgency.