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- 저자 : 김형중(Kim, Hyung-jung) (검색결과 539 건)
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김형중(Kim Hyungjoong) 한국언어문학회 2007 한국언어문학 Vol.62 No.-
This research references existing research for bard Kim-rip and his poem, examined his work tendency in detail. His work can divide to satirical poem, Hangul poem, word amusements(破字戱詩), descriptive poem, love poem, spiritual being poem(詠物詩), animal(insect) poem etc. Recognized his writer mind through his work world that did literature activity through poem of various genre in addition.<BR> Kim-rip was Andong-Kim"s descendants who is best nobility pedigree, but his parentage fell because of Hong-gyeongrae"s rebellion. He satirical inconsistency of society system and hypocrisy of control class fluently present age through his poem. It is as result that his surrounding environment that could not but give up own learning and knowledge that learn to take part in politics on groundwork of these work is reflected.<BR> Critical sight for Kim-rip"s satire and jest, hypocrisy of control class is expressed well at his Hangul poem and word amusements. These work that mix Chinese character and Hangul properly, express subject by pronunciation sometimes, to Chinese character meaning sometimes. He understood by principal parts genre of Hangul poem and word amusements that a maid of honor and peoples enjoyed and Chinese poem that the nobility class enjoys the age.<BR> Kim-rip created descriptive poems that praise the Korean famous mountain and nature sceneries that witness by oneself through life of wandering beautifully. Also, he created much love poems that exchange with kisaeng or various women for tiring wandering period. His descriptive poems showed superior artistic talent of delicate and brand new scenery delineation with sense of beauty which is polished for nature. His love poems sought sense of freedom about instinctive love of human which was prohibited in restraint of feudalism.<BR> Spiritual being poem, animal(insect) poem used thing which can find easily in our surrounding to site of work. For example, there were the domestic animals such as a dog and rooster, parasite such as a louse and flea, life articles such as chamber pot, brazier, pipe and so on. He escapes conservative view of the world which the nobility culture has and expressed civilianization"s life in his work. Such his work tendency produced result that only the nobility class magnifies Chinese poem that enjoyed by public"s life.
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바나듐 유동 전지용 나노 유체의 전기 화학적 반응에 대한 연구
김정명(Jung Myung Kim),박희성(Hee Sung Park) 대한기계학회 2020 大韓機械學會論文集B Vol.44 No.7
바나듐 산화/환원 유동 전지(VRFB: Vanadium Redox Flow Battery)의 전기적 용량 및 수명 증대를 위한 다중 벽 탄소 튜브 콜로이드 용액인 나노 유체를 제조하였으며, 바나듐 전해액에 적합한 초음파 분산 방법을 적용한 나노 유체의 전기 화학적 성능 평가를 위해 단일 셀 유동 전지 평가 시스템으로 62회의 충/방전 사이클 실험을 진행하였다. 본 연구에서 평가된 나노 유체의 에너지 밀도는 0.1wt% (37.62Wh/L) > 0.2wt%(34.77Wh/L) > 0.05wt%(34.17Wh/L) > pristine(29.93Wh/L)의 순서를 보였으며, 용량 감소율은 0.1wt%(0.5%) > 0.05wt%(7.8%) > 0.2wt%(10.7%) > pristine(15.6%) 순서로 확인되었다. 기존 graphite felt 전극과 MWCNT 나노 입자 분석을 위해 XRD와 Raman 분광법을 사용하였다. 본 연구는 시스템에 따라 다양한 최적 중량비가 존재함을 보였으며, 연구에 사용된 단일 셀 시스템의 최적 콜로이드 전해액의 나노 입자 중량비는 0.1wt%임을 밝혔다. The nanofluid was prepared by dispersing nanoparticles to increase the capacitance and lifespan of a vanadium redox flow battery. To evaluate the performance of the nanofluid, a single cell redox flow battery system was tested with 62 charge/discharge cycles. The energy density of the nanofluids estimated in this study was 0.1 wt (37.62 Wh/L) > 0.2 wt (34.77 Wh/L) > 0.05 wt (34.17 Wh/L) > pristine (29.93 Wh/L). The capacity reduction rate decreased in the following order: 0.1 wt (0.5) > 0.05 wt (7.8) > 0.2 wt (10.7) > pristine (15.6). X-ray diffraction, Raman, and energy-dispersive X-ray spectroscopy were used to analyze existing graphite felt and multiwalled carbon nanotube nanoparticles. The nanoparticle content of the optimal nanofluid in the single cell system used in this study was 0.1 wt.
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김형중,김선주,김필식,안열,양용석,Kim Hyung-Jong,Kim Sun-Joo,Kim Phil-Shik,An Yeul,Yang Yong-Suck 한국농공학회 2006 한국농공학회논문집 Vol.48 No.2
Fallow paddy areas have been increased due to the import of cheap agricultural product, and the unbalance between farming cost and rice price since 1990. The increasing fallow paddy area needs to be protected from the devastation by weed breeding for the re-cultivation. In this study, two fallow paddy fields managed with different water depth were selected for monitoring and analysing of water quality, water balance and plant body change. The managed fallow paddy fields were more effective in water quality purification and plants growth control than non-managed fallow paddy fields. And the fallow paddy field managed with some degree of water depth was the most effective field in terms of weed control.
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소규모 오수발생지역의 고도처리시설을 위한 상.하 흐름형 인공습지 개발
김형중,윤춘경,권태영,정광욱,Kim, Hyung-Joong,Yoon, Chun-G.,Kwun, Tae-Young,Jung, Kwang-Wook 한국농공학회 2006 한국농공학회논문집 Vol.48 No.6
The feasibility of the up- and down-flow constructed wetland was examined fur rural wastewater treatment in Korea. Many constructed wetland process was suffered from substrate clogging and high plant stresses because of long term operation. The up- and down-flow constructed wetland process used porous granule materials (charcoal pumice : SSR=10:20:70) for promoting intake rate of nutrient to plant, and especially flow type was designed continuously repeating from up-flow to down-flow. $BOD_5$ and SS was removed effectively by the process with the average removal rate being about 75% respectively. The wetland process was effective in treating nutrient as well as organic pollutant. Removal of TN and TP were more effective than other wetland system and mean effluent concentrations were approximately 7.5 and $0.4mg\;L^{-1}$ which satisfied the water quality standard for WWTPs. The treatment system did not experience any clogging or accumulations of pollutants and reduction of treatment efficiency during winter period because constructed polycarbonate glass structure prevented temperature drop. Considering stable performance and effective removal of pollutant in wastewater, low maintenance, and cost-effectiveness, the up- and down-flow constructed wetland was thought to be an effective and feasible alternative in rural area.
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김형중,김동환,Kim, Hyungjoong,Kim, Donghwan 한국관개배수위원회 2014 한국관개배수논문집 Vol.21 No.1
A sedimentation basin for agricultural water quality improvement was researched to analyze the water quality purification characteristics. The sedimentation basin constructed at the inlet of Gamdon reservoir in Muan-gun, Jeollanam-do was selected as the research field of this study. The surface area of the sedimentation basin is $34,000m^2$, volume is $122,000m^3$, and hydraulic retention time is 0.3hr~7.3day. The average influent loading of SS was 156.6kg-SS/d, and the effluent loading was 67.5kg-SS/d with the average removal rate of 56.9%. The average influent loadings of BOD and COD were 33.0kg-BOD/d and 60.3kg-COD/d respectively, and the effluent loadings were 26.4kg-BOD/d and 48.6kg-COD/d with the average removal rate of 20.1% and 19.3% respectively. Therefore, the results of this study show that a sedimentation basin can purify SS and organic matters. The average influent loadings of T-N and T-P were 28.7kg-TN/d and 2.97kg-TP/d respectively, and the effluent loadings were 16.3kg-TN/d and 1.41kg-TP/d with the average removal rate of 43.0% and 52.6% respectively. In conclusion, the overall results of this study show that a sedimentation basin is a feasible alternative to purify organic matters and nutrients.
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김형중,윤경섭,안열,이광식,Kim Hyung Joong,Yoon Kyung Sup,An Yeoul,Lee Kwang Sik 한국관개배수위원회 2004 한국관개배수논문집 Vol.11 No.2
The water quality indexes of Lake Sapkyo in Asan city Korea, were investigated and analyzed to diagnose and assess the water environment. The 55 and T-P concentrations in influent streams were highly variable during the rainstorm event because of the firs
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