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| 1 | Effects of land use change and water reuse options on urban water cycle显示文摘The aim of this article was to study the effects of land use change and water reuse options on an urban water cycle.A water cycle analysis was performed on the Goonja drainage basin,located in metropolitan Seoul,using the Aquacycle model.The chronological effects of urbanization were first assessed for the land uses of the Goonja drainage basin from 1975 to 2005,where the ratio of impervious areas ranged from 43% to 84%.Progressive urbanization was identified as leading to a decrease in evapotranspiration (29%),an increase in surface runoff (41%) and a decrease in groundwater recharge (74%),indicating a serious distortion of the water cycle.From a subsequent analysis of the water reuse options,such as rainwater use and wastewater reuse,it is concluded that wastewater reuse seemed to have an advantage over rainwater use for providing a consistent water supply throughout the year for a country like Korea,where the rainy season is concentrated during the summer monsoon. | Jiho Lee Gijung Pak Chulsang Yoo Sangdan Kim Jaeyoung Yoon | 2010 | Journal of Environmental Sciences2010，22，6： | 6 |
| 2 | Evaluation of an erosion-sediment transport model for a hillslope using laboratory flume data显示文摘Climate change can escalate rainfall intensity and cause further increase in sediment transport in arid lands which in turn can adversely affect water quality. Hence, there is a strong need to predict the fate of sediments in order to provide measures for sound erosion control and water quality management. The presence of microtopography on hillslopes influences processes of runoff generation and erosion, which should be taken into account to achieve more accurate modelling results. This study presents a physically based mathematical model for erosion and sediment transport coupled to one-dimensional overland flow equations that simulate rainfall-runoff generation on the rill and interrill areas of a bare hillslope. Modelling effort at such a fine resolution considering the flow connection between interrill areas and rills is rarely verified. The developed model was applied on a set of data gathered from an experimental setup where a 650 cm×136 cm erosion flume was pre-formed with a longitudinal rill and interrill having a plane geometry and was equipped with a rainfall simulator that reproduces natural rainfall characteristics. The flume can be given both longitudinal and lateral slope directions. For calibration and validation, the model was applied on the experimental results obtained from the setup of the flume having 5% lateral and 10% longitudinal slope directions under rainfall intensities of 105 and 45 mm/h, respectively. Calibration showed that the model was able to produce good results based on the R2(0.84) and NSE(0.80) values. The model performance was further tested through validation which also produced good statistics(R2=0.83, NSE=0.72). Results in terms of the sedigraphs, cumulative mass curves and performance statistics suggest that the model can be a useful and an important step towards verifying and improving mathematical models of erosion and sediment transport. | Anya Catherine CARGUELLES MinJae JUNG Kristine Joy BMALLARI GiJung PAK Hafzullah AKSOY Levent M KAVVAS Ebru ERIS JaeYoung YOON YoungJoon LEE SeonHwa HONG | 2014 | Journal of Arid Land2014，6，6： | 3 |
| 3 | Effect of homogeneity of methanol/water/monomer mixture on the mode of polymerization of MMA:Soap-free emulsion polymerization versus dispersion polymerization显示文摘 | Gijung K Samuel L Byung H L | | 0，，： | 1 |
| 4 | Effect of homogeneity of methanol/water/monomer mixture on the mode of poly merization of MMA: soap-free emulsion polymerization ver sus dispersion polymerization 显示文摘 | Gijung K Samuel L Byung H | 2010 | Polymer2010，51，5： | 1 |
| 5 | Exosome-guided direct reprogramming of tumor-associated macrophages from protumorigenic to antitumorigenic to fight cancer显示文摘Highly immunosuppressive tumor microenvironment containing various protumoral immune cells accelerates malignant transformation and treatment resistance.In particular,tumor-associated macrophages(TAMs),as the predominant infiltrated immune cells in a tumor,play a pivotal role in regulating the immunosuppressive tumor microenvironment.As a potential therapeutic strategy to counteract TAMs,here we explore an exosome-guided in situ direct reprogramming of tumor-supportive M2-polarized TAMs into tumor-attacking M1-type macrophages.Exosomes derived from M1-type macrophages(M1-Exo)promote a phenotypic switch from anti-inflammatory M2-like TAMs toward pro-inflammatory M1-type macrophages with high conversion efficiency.Reprogrammed M1 macrophages possessing protein-expression profiles similar to those of classically activated M1 macrophages display significantly increased phagocytic function and robust cross-presentation ability,potentiating antitumor immunity surrounding the tumor.Strikingly,these M1-Exo also lead to the conversion of human patient-derived TAMs into M1-like macrophages that highly express MHC class II,offering the clinical potential of autologous and allogeneic exosome-guided direct TAM reprogramming for arming macrophages to join the fight against cancer. | Hyosuk Kim Hyun-Ju Park Hyo Won Chang Ji Hyun Back Su Jin Lee Yae Eun Park Eun Hye Kim Yeonsun Hong Gijung Kwak Ick Chan Kwon Ji Eun Lee Yoon Se Lee Sang Yoon Kim Yoosoo Yang Sun Hwa Kim | 2023 | Bioactive Materials2023，，7： | 0 |
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