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유전알고리즘을 이용한 모터내장형 주축 시스템의 최적설계
최영휴,박선균,김종무 國立 昌原大學校 産業技術硏究所 2002 産技硏論文集 Vol.16 No.-
This study introduces the design optimization of a high speed spindle system for minimum critical speed, compliance, and weight using a genetic algorithm. The rotor, shaft, and bearing components are modelled as appropriate finite element respectively. In the design optimization, the length, inner and outer diameters of the shaft, bearing positions(or bearing span) and bearing stiffness were set as design variables. An unique objective function is obtained by multiplying an appropriate weighting factor by multi-objective functions, such as critical speed, compliance, and the total weight. The constraints are limitations of maximum critical speed, total weight, and vibration level of the spindle system. Optimization results show that critical speed, weight, and the compliance are reduced by 18.6%, 2.2% and 36% respectively compared with the initial design of the spindle system.
현행 고등학교 중국어 교과서에 게재된 사진의 문화적 고찰
朴現圭,陳秀美,柳知惠,金善兒 한국중국문화학회 2001 中國學論叢 Vol.12 No.-
自從1992年8月, 韓中兩國建交以后, 在外交·商務·文化交流1留學·旅游等各個方面都得到了蓬勃的發展. 爲了順應這一國際潮流, 最重要駒就是語言能力. 因此, 敎育部的敎育課程也增大了對中國語敎育的關心, 事實上在高中敎育中, 將中國語選爲第二外國語的比率呈逐漸增加的縕勢. 在外國語敎育中, 作爲基本的敎材的作用不僅在外國語敎育方面, 而且還注重于對使用相應語言的國家和民族的文化進行理解. 因此, 最近爲了在中國語敎育課程中也强化有關中國文化敎育的重要性, 在敎材課文中直接載入中國文化以及韓中兩國文化之뇌較等內容, 而且在敎材中還附加照片和揷鬪資料, 幷行視覺敎育 通過這-方法, 學生在首次接觸中國語敎材時, 通過封面和封面內的照片, 以及本文中的據獨照片, 可以更加准確地把握何霜中國的形象和文化.本論文正是着眼于這-點, 選擇第雌騙驗育課程中被選定的一般高中現行中國語敎材共5冊, 以其中所登載的照片爲對象進行分析. 同時分析內容還包括, 讀些照片對于學生來說, 在了解中國文化方面如何有效地傳達知識, 在增進理解方面會起到多大作用, 幷旦對這里所存在的間題進行討論, 探求合理的改善方案. 書本是內容的充實也固然重要, 但外部的設計以及附加照片 1 揷圖等視覺效果也不容忽視, 具有同等的重要性. 一般的書籍如此, 而作爲敎材來講, 在增進學習效果方面, 這種視覺效果更重要. 本論文雖然以對現行中國語敎材中所收錄駒部分照片爲進行了分析, 但在誤計彧圖片部分也可作與沈相同約結論. 2002年敎育課程的轉換時機卽將來臨, 中國語敎材也重新進拒了改編. 希望今盾被改編的中國語敎材將對本論文中所提及的問題進行改善, 對書中的每一張照片都進行愼重的選擇, 從而可使學習中國語的學生更加准確多方面地了解中國文化. 爲了對這些間題進行改善, 筆者認爲敎育當局應該投入更多的關心, 幷在制度上予以充分的協助.
Mi-Sun Lee(Mi-Sun Lee),Sun Je Kim(Sun Je Kim),Jeong-Ho Chae(Jeong-Ho Chae),Soo-Young Bhang(Soo-Young Bhang),Mimi Lee(Mimi Lee),Hyeong Beom Kim(Hyeong Beom Kim),Hyu Jung Huh(Hyu Jung Huh) 대한신경정신의학회 2023 PSYCHIATRY INVESTIGATION Vol.20 No.3
Objective The purpose of this study was to examine the effects of the Soma experiencing motion (Soma e-motion) program on interoceptive awareness and self-compassion among novices. Methods A total of 19 adults (clinical group=9, non-clinical group=10) participated in the intervention. Psychological and physical changes after program were qualitatively analyzed using in-depth interviews. The Korean Multidimensional Assessment of Interoceptive Awareness (K-MAIA) and the Korean version of the Self-Compassion Scale (K-SCS) were used as quantitative measures. Results The non-clinical group showed statistically significant differences in the K-MAIA scores (z=-2.805, p<0.01) and K-SCS scores (z=-2.191, p<0.05); however, the clinical group showed no significant differences (K-MAIA: z=-0.652, p>0.05; K-SCS: z=-0.178, p>0.05). According to the in-depth interviews, the results of the qualitative analysis were categorized into five dimensions (psychological and emotional, physical, cognitive, behavioral, and aspects participants found challenging and needs improvement). Conclusion The Soma e-motion program was feasible for improving interoceptive awareness and self-compassion in the non-clinical group. However, further research is needed to investigate the clinical efficacy of the Soma e-motion program for clinical group.
Kim, Sang Gon,Lee, Jin-Seok,Shin, Seong-Hyu,Koo, Sung Cheol,Kim, Jung Tae,Bae, Hwan Hee,Son, Beom-Young,Kim, Yul-Ho,Kim, Sun Lim,Baek, Seong-Bum,Kwon, Young-Up The Korean Society for Applied Biological Chemistr 2015 Applied Biological Chemistry (Appl Biol Chem) Vol.58 No.3
Maize (Zea mays L.) is the most important crop such as food for humans and feed for animals. Although new varieties of maize have been extensively developed in Korea, little is known about differences in the proteomes of mature kernels among maize varieties. Three Korean waxy corn cultivars (Ilmichal, Eolrukchal 1, and Heukjinjuchal) have previously been developed. The total protein content is higher in Ilmichal than in Eolrukchal 1 or Heukjinjuchal, while the starch and fatty acid contents are similar among these three Korean waxy corns. To uncover the differences in proteomic profiles among these three Korean waxy corns, we performed proteomic analysis and compared their protein compositions. We detected 37 differentially expressed protein spots and identified the proteins using MALDI-TOF mass spectrometry. Of these proteins, 37.8 % were identified as storage proteins, 18.9 % as stress-related proteins, and 18.9 % as metabolism-related proteins. Storage proteins (globulin-2) and stress-related proteins (heat shock proteins and general stress proteins) were highly expressed in Ilmichal or Heukjinjuchal. Semi-quantitative reverse transcription-polymerase chain reaction (RT-PCR) analysis of corresponding genes of five randomly selected proteins, including glyoxalase family protein (accession number, B6SGF3), globulin-2 (Q7M1Z8), heat shock protein 1 and 3 (B6TGQ2 and B6TDB5), and vicilin-like embryo storage protein (Q03865), showed that the expression levels of the tested genes were well-correlated with protein abundance, suggesting that these proteins are also differentially regulated at the transcriptional level. Taken together, these results provide a better understanding of proteomic differences among Korean waxy corn cultivars and may support further molecular breeding efforts.
김선(Sun Kim),김택겸(Taek-Kyum Kim),정재혁(Jae-Hyeok Jeong),양창휴(Chang-Hyu Yang),이장희(Jang-Hee Lee),최원영(Weon-Young Choi),김영두(Young-Doo Kim),김시주(Si-Ju Kim),성기영(Ki-Young Seong) 韓國雜草學會 2012 Weed&Turfgrass Science Vol.32 No.1
간척지를 농업용지로 개발하는데 간척지에 자생하는 식생의 이용가능성에 관한 기초 자료를 얻고자 새만금 간척지 내 계화지구에서 식생군락에 따라 식물종을 분류하고 토양 화학성과의 관계를 분석한 결과는 다음과 같다. 담수면 토양을 기점으로 조사된 위치별 토양염농도는 담수면 인접부가 22.3dS m-1 로 가장 높았고 육지쪽으로 진행될수록 낮아져 해수면에서 2km이상 되는 지점에서는 1.1~3.44dS m-1를 나타냈다. 자생하는 식물은 6과 26종이 조사되었으며, 식물종별 발생빈도는 갯개미취, 비짜루국화가 61.5로 가장 높은 빈도를 나타냈고, 이어 갈대와 갯꾸러미풀이 53.8이었다. 식생의 발생은 토양 염농도 14dS m-1 지점에서 시작되었고 주로 명아주과 염생식물들인 퉁퉁마디, 나문재, 칠면초, 해홍나물 등이 나타났다. 이후 6.7dS m-1지점에서부터 화본과 식물인 갈대, 갯꾸러미풀 등이 나타났고, 5dS m-1 에서 사초과 식물이 나타났다. 3dS m-1이하에서는 비짜루국화, 갈대, 피, 갯잔디, 망초 등 중성식물들이 나타났다. 식생 종수는 염생식물과 중생식물이 동시에 나타나는 5dS m-1 지점에서 많았고, Biomass는 갈대가 우점한 식생구가 가장 많았으며, 다음으로는 갈대+자귀풀이 우점한 식생에서 많았다. 식생의 생장량은 토양 염농도와는 부의상관을 나타냈고, 유기물함량과는 정의상관을 나타냈으며, pH와 식생의 우점도간에는 부의 상관을 나타냈다. This study was conducted to survey vegetation changes and soil characteristics in Saemangeum new reclaimed tidal land. Soil salinity in border area to tidal land was 22.3 dS m-1 but showed 1.1~3.44 dS m-1 over the distance of 2 km from border line. The vascular plants in survey sites were recorded as total 26 taxa in 6 families. The frequency of species appearance of Aster tripolium, A. subulatus var. sandwicensis were highest by 61.5 and that of Phragmites communis, Puccinellia nipponica were 53.8. The almost vegetations occurred in the patch which range of soil salinity 14 dS m-1 were halophytes as Salicornia europaea, Suaeda asparagoides, S. japonica. As lowed soil salinity as 6.7 dS m-1, mixed vegetation of halophytes with P. communis, P. nipponica, Carex pumila were occurred. Dominant species in the range of 3.0 dS m-1 area were A. subulatus var. sandwicensis, P. communis, Echinochloa spp., Zoysia sinica and Conyza canadensis. Biomass production was the highest in the area of dominant vegetation with P. communis, and mixed zone with P. communis and Aeschynomene indica are followed. The correlation between vegetation biomass and soil salinity, soil pH and dominance index of vegetation were negative. But that of vegetation biomass and soil organic content were positive.