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| 1 | Mini-review on river eutrophication and bottom improvement techniques, with special emphasis on the Nakdong River显示文摘Water quality in rivers is vital to humans and to maintenance of biotic and ecological integrity.During the Four Major Rivers restoration of South Korea, remarkable attempts have been made to decrease external nutrient loads and moveable weirs were designed to discharge silt that may deposit in pools. However, recently eutrophication of the Nakdong River, which was limited to the lower reaches, is seen to be spreading upstream. The reduction of external nutrient loads to rivers is a long-term goal that is unlikely to lead to reductions in algal blooms for many years because of the time required to implement effective land management strategies. It would therefore be desirable to implement complementary strategies. Regulating the amount of water released is effective at preventing algae blooms in weir pools; so, the relationship between discharge, stratification and bloom formation should be understood in this regard. However, pollutants are likely to accumulate in the riverbed upstream from release points. Thus, to control phosphorus levels, total phosphorus density should be lowered by applying in-river techniques as well. As many ecosystem properties are controlled by multiple processes, simultaneous river bottom improvement techniques, such as combined dissolved oxygen supply and nutrient inactivation, are likely to be effective. The purpose of this review is to present a series of technological approaches that can be used to improve the river bottom area and hence sediment nutrient release, and to illustrate the application of these techniques to the Nakdong River. | Andinet Tekile Ilho Kim Jisung Kim | 2015 | Journal of Environmental Sciences2015,27,4: | 13 |
| 2 | The Significance of Blood Pressure Variability for the Development of Hemorrhagic Transformation in Acute Ischemic Stroke显示文摘 | Youngchai Ko Jung Hyun Park Mi Hwa Yang Sang-Bae Ko Moon-Ku Han Chang Wan Oh JiSung Lee Juneyoung Lee Hee-Joon Bae | 2010 | Stroke2010,,11: | 2 |
| 3 | Concept of Cold Energy Storage for Superconducting Flywheel Energy Storage System显示文摘 | Lee Jisung Jeong Sangkwon Han Young Hee | 2011 | IEEE Transactions on Applied Superconductivity2011,21,3: | 1 |
| 4 | Transient thermodynamic behavior of cryogenic mixed fluid thermosiphon and its cool-down time estimation显示文摘 | Jisung Lee Youngkwon Kim Sangkwon Jeong | 2010 | Cryogenics2010,,5: | 1 |
| 5 | The Effect of Task Uncertainty and Decentralization on Project Team Performance显示文摘 | Jisung Kim Richard M. Burton | 2002 | Computational & Mathematical Organization Theory2002,,4: | 1 |
| 6 | Lee, Sangkwon Jeong, Young Hee Han, Concept of cold energy storage for superconducting flywheel energy storage system 显示文摘 | Jisung | 2011 | 21(3): 2221 -22242011,21,3: | 1 |
| 7 | Combining multiple climate policy instruments: how not to do it 显示文摘 | SAMUEL F CAMERON H JISUNG P | 2010 | Climate Change Economics2010,1,3: | 1 |
| 8 | Sulforaphane alleviates scopolamine-induced memory impairment in mice显示文摘 | Siyoung Lee Jisung Kim Sang Gwon Seo Bo-Ryoung Choi Jung-Soo Han Ki Won Lee Jiyoung Kim | 2014 | Pharmacological Research2014,,: | 1 |
| 9 | Design of high efficiency mixed refrigerant Joule-Thomson refrig- erator for cooling HTS cable 显示文摘 | Jisung Lee Gyuwan Hwang Sangkwon Jeong | 2011 | Cryogenics2011,51,7: | 1 |
| 10 | Concept of cold energy storage for superconducting flywheel energy storage system显示文摘 | Jisung Lee Sangkwon Jeong Young Hee Han | 2011 | IEEE Transactions on Applied Superconductivity2011,21,3: | 1 |
| 11 | Effects of Cu addition on formability and surface delamination phenomenon in high-strength high-Mn steels显示文摘The formability of austenitic high-Mn steels is a critical issue in automotive applications under nonuniformly-deformed environments caused by dynamic strain aging.Among austenite stabilizing alloying elements in those steels,Cu has been known as an effective element to enhance tensile properties via controlling the stacking fault energy and stability of austenite.The effects of Cu addition on formability,however,have not been sufficiently reported yet.In this study,the Cu addition effects on formability and surface characteristics in the austenitic high-Mn TRIP steels were analyzed in consideration of inhomogeneous microstructures containing the segregation of Mn and Cu.To reveal determining factors,various mechanical parameters such as total elongation,post elongation,strain hardening rate,normal anisotropy,and planar anisotropy were correlated to the hole-expansion and cup-drawing test results.With respect to microstructural parameters,roles of(Mn,Cu)-segregation bands and resultant Cu-rich FCC precipitates on the formability and surface delamination were also discussed. | Min Chul Jo Jisung Yoo Min Cheol Jo Alireza Zargaran Seok Su Sohn Nack J.Kim Sunghak Lee | 2020 | Journal of Materials Science & Technology2020,36,8: | 0 |
| 12 | A Structural Topic Model for Exploring User Satisfaction with Mobile Payments显示文摘This study explored user satisfaction with mobile payments by applying a novel structural topic model.Specifically,we collected 17,927 online reviews of a specific mobile payment(i.e.,PayPal).Then,we employed a structural topic model to investigate the relationship between the attributes extracted from online reviews and user satisfaction with mobile payment.Consequently,we discovered that“lack of reliability”and“poor customer service”tend to appear in negative reviews.Whereas,the terms“convenience,”“user-friendly interface,”“simple process,”and“secure system”tend to appear in positive reviews.On the basis of information system success theory,we categorized the topics“convenience,”“user-friendly interface,”and“simple process,”as system quality.In addition,“poor customer service”was categorized as service quality.Furthermore,based on the previous studies of trust and security,“lack of reliability”and“secure system”were categorized as trust and security,respectively.These outcomes indicate that users are satisfied when they perceive that system quality and security of specific mobile payments are great.On the contrary,users are dissatisfied when they feel that service quality and reliability of specific mobile payments is lacking.Overall,our research implies that a novel structural topic model is an effective method to explore mobile payment user experience. | Jang Hyun Kim Jisung Jang Yonghwan Kim Dongyan Nan | 2022 | Computers, Materials & Continua2022,,11: | 0 |
| 13 | 震撼加倍 索尼PHA-1放大你的听觉显示文摘索尼(SONY)虽然在随声听领域是个重头角色,但对于耳放这个小众市场毕竟仍是一名“新人”。此次索尼特立独行的带来了PHA-1耳放,完美的音频解码,个性的捆绑搭配,并且承蒙于一票烧友的推荐——索尼PHA-1配水果是一个不错的选择,让MI忍不住想要一试为快。 | Jisung | 2013 | 移动信息2013,,5: | 0 |