總括生産計劃에서 適定 퍼지수 比較法의 選擇에 관한 硏究

李相玩,朴永和,南賢祐,尹延根 동아대학교 공과대학 부설 한국자원개발연구소 1992 硏究報告 Vol.16 No.1

When using any of the aggregate production planning techniques mentioned in previous studies, it is generally assumed that the inputs of information are deterministic and easy to generate. However, the problem is more complex if the criteria and informations are expressed imprecisions. Therefore, it requires suitable method to deal with imprecisions. For select proper comparison method of fuzzy numbers in aggregate production planning with imprecise informations or criteria, this study use Dubois & Prade fuzzy number comparison method and Li-Lee fuzzy number comparison method among comparison methods fuzzy numbers. And then, proper method between two methods is selected. Also it is presented illustration.

Mg(OH)₂를 이용한 습식탈황에서 폐슬러리 처리특성연구

김근범,이은덕,박영성,임봉수 大田大學校 環境問題硏究所 1998 환경문제연구소 논문집 Vol.3 No.-

Properties analyses and treatment characteristics of waste slurry discharged in the wetted flue gas desulfurization process using Mg(OH)₂as a absorbent were investigated. Aeration and coagulation test were carried out to evaluate variation of some factors such as COD, SS, T-N, etc. related to waste slurry treatment. The hydraulic retention time(HRT) and coagulant dosage rate were applied as operating variables in experiment. As experimental results, the reduction effects of COD, SS in aeration test were distinct, due to oxidation of SO₃ and floc, formation of suspended solids. It was also found that the reduction efficiencies of SS and T-P in coagulation test are higher than 90%.

Caffeic acid O-metyltransferase (COMT) is involved in the melatonin synthesis in rice (Oriza sativa) plants

Geun-hee Choi,Yeong Byeon,Hyoung Yool Lee,Kyoungwhan Back 한국육종학회 2015 한국육종학회 심포지엄 Vol.2015 No.07

Caffeic acid O-methyltransferase (COMT) methylates N-acetylserotonin into melatonin; that is, it has N-acetylserotonin O-methyltransferase (ASMT) activity. The ASMT activity of COMT was first detected in Arabidopsis thaliana COMT (AtCOMT). To confirm the ASMT activity of COMT in other plant species, we evaluated the ASMT activity of a COMT from rice (Oryza sativa) (OsCOMT). Purified recombinant OsCOMT protein from Escherichia coli was used to validate the high ASMT activity of OsCOMT, similar to that of AtCOMT. The Km and Vmax values for the ASMT activity of OsCOMT were 243 μm and 2,400 pmol/min/mg protein, which were similar to those of AtCOMT. Similar to AtCOMT, OsCOMT was localized in the cytoplasm. In vitro ASMT activity was significantly inhibited by either caffeic acid or quercetin in a dose-dependent manner. Analogously, in vivo production of melatonin was significantly inhibited by quercetin in 4-week-old detached rice leaves, suggestive of a positive role of COMT in melatonin biosynthesis in plants.

Effect of Sesbania Incorporation as Nitrogen Source on Growth and Yield of Whole Crop Barley and Reduction of N Fertilizer in Saemangeum Reclaimed Tidal Land

Lee, Su-Hwan,Bae, Hui-Su,Oh, Yang-Yeol,Lee, Sang-Hun,Kim, Yeong-Joo,Kim, Sun,Ryu, Jin-Hee,Jung, Kang-Ho,Lee, Choong-Geun,Kim, Jae-Hyeon,Kim, Yeong-Doo,Choi, Weon-Young,Cho, Jae-Yeong,Lee, Kyoung-Bo,Le 한국토양비료학회 2016 한국토양비료학회지 Vol.49 No.6

It is known that the poor soil fertility of newly reclaimed saline soils is due to the lack of organic matter and available mineral nutrients for crop production. The effect of green manuring with Sesbania aculeata in combination with five rates of urea-N treatments (N0. N25, N50, N75, N100) on the productivity of a subsequent whole-crop barley and the fertility of the reclaimed saline soil in Saemangeum was evaluated in the field during 2013-2014 growing season. Sesbania was grown during summer season (June to October). The amount of Sesbania incorporated was $16.2Mg\;ha^{-1}$. Sesbania contributed to $393kg\;N\;ha^{-1}$ to the soils when ploughed down and incorporated before whole-crop barley cultivated. The performances of whole-crop barley following sesbania incorporation were significantly affected by a combination of Sesbania manuring and different N rates. The N fertilizer equivalence without N fertilizer following Sesbania was 42.6% ($63.9kg\;N\;ha^{-1}$), compared with N100 ($150kg\;N\;ha^{-1}$) in fallow soils. The whole-crop barley yield responded to N fertilizer rates in both sesbania-amended and fallow soil. The yield response to nitrogen rates in fallow soil was linear (Y=0.0586X+3.3011, $R^2=0.9534$), whereas that in sesbania-amended soils was quadratic (Y= -0.001X2+0.1322X+5.7143, $R^2=0.9576$). The yield of whole-crop barley in sesbania-amended with increasing N rates was increased up to SN75 (115 kgN) $10.3Mg\;ha^{-1}$. Apparent N recovery (ANR) of whole-crop barely showed decreased with sesbania plus increasing rates of N fertilizer. Despite higher yield with sesbania manuring plus increasing N rates, the contributions of N from Sesbania with increasing N rates to whole-crop barley were decreased, whereas those from fertilizer increment due to excessively mineralized Nitrogen. Considering yield, ANR, N contribution from Sesbania and nitrogen fertilizer, the optimum N rate was N50 rate following sesbania incorporation.

Development of Self-Questionnaire for Internal Dose Assessment by Food Ingestion

Lee JiEun,Kim Hyo Jin,Kye Yong-Uk,Lee Dong-Yeon,Jo Wol Soon,Lee Chang-Geun,Kim Jung-Ki,Kang Yeong-Rok 대한방사선방어학회 2022 방사선방어학회지 Vol.47 No.4

Background : The accident at the Fukushima Daiichi nuclear power plant increased the level of anxiety related to the radioactive contamination of various foods sourced in Japan . Particularly, after the accident , the detection of artificial radionuclides in locally produced foods raised food safety concerns . In this study, the radioactivity concentrations and annual ingestions of 40K and 137 Cs in food products commonly and frequently consumed by the general public were investi- gated , and the annual effective dose of each was evaluated . Materials and Methods : The 2016–2018 data from the Radiation Safety Management Report released by the Korea Nuclear Safety Technology Center was referenced for the evaluation of the amounts of 40K and 137Cs contained in food . Using the food-ingestion survey mentioned above as a reference , we selected 62 foods to include in our radioactivity concentration and dose as- sessment . We also developed a questionnaire and evaluated the responses from the subjects who answered the questionnaire . Results and Discussion : The radioactivity concentration of 137Cs was found to be close to or below the level of minimum detectable activity. Additionally, the annual ingestion of 62 foods was 294 . 77 kg/yr, the effective doses from 40K and 137Cs were 136 . 4 and 0 . 163 μSv/yr, respec- tively. Conclusion : Thus , the findings confirmed that the effective dose from 40K and 137Cs in food tends to be lower than the effective dose limit of 1 mSv/yr suggested by the International Com- mission on Radiological Protection (ICRP) Publication 60 . The questionnaire developed in this study is expected to be useful for estimating the annual effective dose status of Korean adults who consume foods containing 40K and 137Cs .

드론 원격정보를 활용한 실제증발산량의 산정: 가뭄지수를 위한 사전테스트

이근상 ( Geun-sang Lee ),김성욱 ( Sung-wook Kim ),함세영 ( Se-yeong Hamm ),이길하 ( Khil-ha Lee ) 한국환경과학회 2016 한국환경과학회지 Vol.25 No.12

Drought is a reoccurring worldwide natural hazard that affects not only food production but also economics, health, and infrastructure. Drought monitoring is usually performed with precipitation-based indices without consideration of the actual state and amount of the land surface properties. A drought index based on the actual evapotranspiration can overcome these shortcomings. The severity of a drought can be quantified by making a spatial map. The procedure for estimating actual evapotranspiration is costly and complicated, and requires land surface information. The possibility of utilizing drone-driven remotely sensed data for actual evapotranspiration estimation was analyzed in this study. A drone collected data was used to calculate the normalized difference vegetation index (NDVI) and soil-adjusted vegetation index (SAVI). The spatial resolution was 10 m with a grid of 404 x 395. The collected data were applied and parameterized to an actual evapotranspiration estimation. The result shows that drone-based data is useful for estimating actual evapotranspiration and the corresponding drought indices.

경험서사 창작교육을 위한 대학생 독자의 자기서사 분석

이근영 ( Lee Geun-yeong ) 서울교육대학교 초등교육연구원 2020 한국초등교육 Vol.31 No.4

이 연구는 학습자들이 경험서사 창작 과정에서 창작의 소재이자, 자신의 경험에서 문제적 사건을 발견하는 것을 어려워한다고 보고, 그 원인이 자기 자신과 자신의 삶에 대한 사유의 부족에 있다고 판단하였다. 이에 이 연구는 문학치료학의 '자기서사' 개념을 경험서사 창작교육의 관점에서 검토하고, 대학생 독자의 자기서사 분석을 통해 경험서사 창작교육을 위한 시사점을 찾고자 한다. 문학치료학에서 자기서사는 작품서사에 대응하는 개념으로, 인간을 서사적 존재로 보는 관점을 전제로 하고 있다. 독자가 작품을 통해 자신의 삶의 근본적인 문제를 발견하고 이를 해결하기 위해 만드는 이야기를 의미한다. 자기서사 개념은 경험서사 창작교육적 관점에서 볼 때 다음과 같은 의의를 찾을 수 있다. 첫 번째는 독서와 쓰기의 통합적 활동으로 만들어진다는 점에서 학습자들의 창작에 대한 부담감을 낮출 수 있다. 두 번째는 작품을 읽으며 미처 인식하지 못했던 또 다른 자기의 모습을 발견한다는 점에서 대화적 (dialogic)이다. 세 번째는 불완전한 자기서사를 작품서사를 통해 수정하는 과정에서 학습자들의 삶의 태도가 긍정적으로 변화될 수 있다. 이상 검토된 자기서사의 경험서사 창작교육적 의의를 토대로 대학생 독자의 자기서사를 분석하였다. 분석 결과, 대학생 독자의 자기서사는 ‘작품서사의 구성’-‘자기서사의 촉발’-‘자기서사의 수정’이라는 구조로 이루어진다는 것을 알 수 있었다. 먼저 독자는 작품을 읽으며 한 인물이나 여러 인물의 서사를 종합하여 작품서사를 구성한다. 이 단계는 이어지는 자기서사의 촉발에 영향을 주어, 독자의 무의식에 자리하던 자기서사를 현실화하게 도와준다. 독자는 자기서사 촉발 단계에서 현실의 문제를 마주하게 되고, 다시 작품서사를 통해 자기서사를 수정하는 과정을 거치게 된다. 이와 같은 구조는 학습자들이 작품을 통해 자신이 미처 생각지 못했던 기억과 현재 자신의 모습을 정면으로 마주함으로써 자연스럽게 자기서사를 창작하도록 이어진다는 점에서 경험서사 창작교육에 기여하는 바가 크다. This study considers the failure of learners to discover problematic events for writing experiential narratives as a problem situation faced by experiential narrative writing education, and examines the concept of 'the epic of self' in literature therapy from the perspective of experiential narrative writing education to solve this I did. In literary therapy, self-narrative is a concept that corresponds to the narrative of works, and is based on the perspective of seeing humans as narrative beings. and readers discover their own fundamental problems based on the epic of literary work and make it into the epic of self. From the perspective of experiential narrative writing education, the following significance could be found. The first is an integrated activity of reading and writing, which can reduce the burden on learners' writing. The second is dialogic in that he discovers another image of himself while reading the work. Third, it is possible to positively change learners' attitudes of life through correction of the epic of self through the epic of literary work. The epic of self of the university students' readers was analyzed based on the creative educational significance of the experiential narrative of the epic of self reviewed above. As a result of the analysis, it was found that the epic of self of university students' readers was largely composed of 'composition of the epic of literary work'-'trigger of the epic of self'-'correction of the epic of self'. This structure of the epic of self contributes greatly to the expansion of experiential narrative writing education in that it helps learners lead to natural the epic of self writing by confronting memories they had not thought of through the literary work. In the process of such educational practice, it is expected that learners will be able to feel the joy of reading literature and writing narratives.

방송통신망 기반의 탄소 절감 및 녹색 성장 전략에 관한 연구

이재호(Lee Jae Ho),이재근(Lee Jae Geun),이영로(Lee Yeong Ro),임인수(Im In Soo) 한국통신학회 2009 한국통신학회 학술대회논문집 Vol.2009 No.6

원발성 폐암 환자의 혈청에서 DAP kinase 유전자의 Methylation 양상

이준희 ( Lee Jun Hui ),이정욱 ( Lee Jeong Ug ),정경식 ( Jeong Gyeong Sig ),김기욱 ( Kim Gi Ug ),이태근 ( Lee Tae Geun ),이경우 ( Lee Gyeong U ),나민아 ( Na Min A ),전두수 ( Jeon Du Su ),최영민 ( Choe Yeong Min ),김윤성 ( Kim Yun S 대한결핵 및 호흡기학회 2003 Tuberculosis and Respiratory Diseases Vol.55 No.4

일반연제 발표 : 복막투석 환자에서 갑상선기능의 변화

이현희 ( Lee Hyeon Hui ),권태근 ( Kwon Tae Geun ),김대중 ( Kim Dae Jung ),김정아 ( Kim Jeong A ),윤수진 ( Yun Su Jin ),이영기 ( Lee Yeong Gi ),허우성 ( Heo U Seong ),김윤구 ( Kim Yun Gu ),오하영 ( O Ha Yeong ),김용림 ( Kim Yong Li 대한신장학회 2002 춘계학술대회 초록집 Vol.21 No.1