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김희수,김종헌,육근철,이희권,김정민,이봉재,Kim, Hee-Soo,Kim, Jong-Heon,Yuk, Geun-Cheol,Lee, Hui-Gwon,Kim, Jeong-Min,Lee, Bong-Jae 한국영재학회 2002 영재교육연구 Vol.12 No.4
본 연구에서는 과학 창의성 수준을 측정하기 위한 검사지와 답지를 함께 개발하였다. 이 검사지에는 창의성을 이루고 있는 7 가지 창의성 요소를 반영하였다. 개발 과정에서 타당도와 문항의 명료성 등에 대한 검증을 받았다. 개발된 검사지는 332명의 중학생들에게 투입되어 타당도, 신뢰도 등 검사분석과 난이도, 변별도 등의 문항 분석을 실시하였다. 검사분석 결과 타당도: 92%, 신뢰도: 0.84으로 문항분석 결과 난이도:$42%{\sim}73%$, 변별도: $0.22{\sim}0.70$ 를 보여 과학 창의성 수준 검사 과정에서 활용 가능함이 확인되었다. We have developed a tool and solution to test creativity level for science field. This test tool was considered 7 creativity elements. In development process, it was verified for contents validity, clarity of the item etc. The test developed in this study was analyzed item analysis after applying for 332 middle school students. As a results of item analysis, it showed meaningful(validity: 92%, item difficulty: $42%{\sim}73%$, reliability: 0.84, item discriminating power: $0.22{\sim}0.70$)over the level of a standard basis. This means that the test tool was useful in the test process of creativity level for science.
CO₂ 고부가화를 위한 로도박터 스페로이데스를 활용한 미생물 전기합성 최적화 연구
김희수(Hui Su Kim),정휘종(Hwi Jong Jung),김단비(Danbee Kim),이상민(Samgmin Lee),이지예(Jiye Lee),이진석(Jin-Suk Lee),문명훈(Myounghoon Moon),고창현(Chang Hyun Ko),이수연(Soo Youn Lee) 한국신재생에너지학회 2023 신재생에너지 Vol.19 No.4
Emitted CO₂ is an attractive material for microbial electrochemical CO₂ reduction. Microbial electrochemical CO₂ reduction (i.e., microbial electrosynthesis, MES) using biocatalysts has advantages compared to conventional CO₂ reduction using electrocatalysts. However, MES has several challenges, including electrode performance, biocatalysts, and reactor optimization. In this study, an MES system was investigated for optimizing reactor types, counter electrode materials, and CO₂-converting microorganisms to achieve effective CO₂ upcycling. In autotrophic cultivation (supplementation of CO₂ and H₂), CO₂ consumption of Rhodobacter sphaeroides was observed to be four times higher than that with heterotrophic cultivation (supplementation of succinic acid). The bacterial growth in an MES reactor with a single-chambered shape was two times higher than that with a double chamber (H-type MES reactor). Moreover, a single-chambered MES reactor equipped with titanium mesh as the counter electrode (anode) showed markedly increased current density in the graphite felt as a working electrode (cathode) compared to that with a graphite felt counter electrode (anode). These results demonstrate that the optimized conditions of a single chamber and titanium mesh for the counter electrode have a positive effect on microbial electrochemical CO₂ reduction.
승용 디젤엔진의 연소실 압력 변화에 따른 피스톤 온도 특성
김충희 ( Chung Hui Kim ),이기수 ( Gee Soo Lee ),김현철 ( Hyun Chul Kim ),한상욱 ( Sang Wook Han ),유연설 ( Youn Sul Yoo ),김희수 ( Hee Su Kim ) 한국액체미립화학회 2014 한국액체미립화학회 학술강연회 논문집 Vol.2014 No.-
In this study, the characteristics of piston temperature according to the combustion pressure were analyzed in a passenger car diesel engine. The peak combustion pressure was increased from 170bar to 210bar by adjusting the control parameters such as injection timing and intake pressure. In addition, effects of the shapes and locations of cooling gallery inside the re-melting piston on the piston temperature were evaluated. As the combustion pressure increased, the average piston temperature increased up to 21% in the base piston, while that in the piston with the re-melting technique and larger cooling gallery area increased up to 18 %. On the other hand, the piston with the larger cooling gallery area as well as raised cooling gallery to the piston crown side showed a similar temperature level with the base piston at the 170bar combustion pressure condition.
Microbial CO₂ Electrobiorefinery as a Foremost Technology for Net-Zero Bio-Based Production in Korea
Soo Youn Lee(이수연),Sangmin Lee(이상민),Young-Hwan Chu(주영환),Hui Su Kim(김희수),Yu Rim Lee(이유림),Hwi Jong Jung(정휘종),Danbee Kim(김단비),Myunghoon Moon(문명훈),Gwon Woo Park(박권우) 한국신재생에너지학회 2023 한국신재생에너지학회 학술대회논문집 Vol.2023 No.6
방약합편(方藥合編) 하통(下統) 방제(方劑)의 병증(病症) 및 병리(病理) 활용(活用)에 대한 고찰(考察)
염현식,김희수,Eyum Hyun-Sik,Kim Hui-Soo 대한한의학방제학회 2003 大韓韓醫學方劑學會誌 Vol.11 No.1
From the study of the symptom, pathology in prescription of Ha-Tong from The Bangyakhapeun. I have reserched 163 prescription. It can be concluded as follows. 1. Prescription about Fecal disease which was the most as 11.66% of the whole, following order Internal disease(6.75%), Uterus Disease(5.52%) Sick-by-Cold Disease(5.52%), Eye Disease(4.91%), Blood Disease(4.91%), Unbalanced humoral status Disease(4.91%), Gynecologic Disease(4.91%). 2. The Fecal Disease divide diarrhea and dysentery; The Internal Disease divides with Sik-sang(食傷) Chu-sang(酒傷), Sik-juck-yu-sang-han(食積類傷寒), Carbonic acid, Vomiting acid; The Uterus Disease divides with Urinnary Disadvantage, Urinary retention, Incontinence; The Sick-by-Cold Disease divides with yang-myung-byung(陽明病), sang-han-goi-jng(傷寒壞證), sang-han-bun-gal(傷寒煩渴), sang-han-sum-ou, sang-han-hyul-jng(傷寒血證), sang-han-ja-ri(傷寒自利), sang-han-bun-jo-jng(傷寒煩燥證). 3. The Diarrhea and Dysentery many used o-ryung-san, hwng-gum-jak-yak-tang(黃芩芍藥湯) hyang-ryun-hwan(香連丸) etc, and The Internal Disease many used pyung-we-san(平胃散) as a basic prescripton. 4. The organ problem use the Sil-yuol(實熱) of the liver, stomach, lung, uterus, small intestine; six natural factors problem used the Sil-jng(實證) of the wind, fire, heat, cold, dampness; And used Unbalanced humoral status, lntrnal hurt, qi and blood, seven extream feeling.
최익규(Ik-Kyu Choi),김희수(Hee-Soo Kim),이병희(Byoung-Hui Lee),김민구(Min-Koo Kim) 한국정보과학회 2002 한국정보과학회 학술발표논문집 Vol.29 No.2Ⅱ
하이퍼링크 환경에서의 정보검색은 주로 문서에 존재하는 링크정보를 이용하여 이루어진다. 본 논문은 하나의 문제에 존재하는 여러 개의 하이퍼링크마다 연결되는 문서와의 유사성을 측정하여 차등적으로 링크의 연결정보를 부여하여 기존의 알고리즘을 개선하였고, 관련이 없는 문서로의 하이퍼링크로 인해 발생되는 topic drift 현상을 제거하기 위해 문서와 확장된 질의와의 유사성을 측정하여 문서의 가증치를 계산에 적용하도록 알고리즘을 개선하였다. 개선한 알고리즘의 성능을 확인하고자 TREC10의 web trec 부분에 적용하여 향상된 검색 결과를 얻었다.