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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.
Chang-Hyu Yang(양창휴),Taek-Kyum Kim(김택겸),Jin-Hee Ryu(유진희),Sang-Bog Lee(이상복),Sun Kim(김선),Nam-Hyun Baek(백남현),Weon-Young Choi(최원영),Doug-Young Chung(정덕영),Si-Ju Kim(김시주) 한국토양비료학회 2010 한국토양비료학회지 Vol.43 No.6
본 연구는 논토양 비옥도에 대한 예취높이별 볏짚 혼입효과를 구명하고자 수행하였다. 예취높이별 잔존량은 1,420 kg ha<SUP>-1</SUP> (10 cm), 1,850 kg ha<SUP>-1</SUP> (15 cm), 2,400 kg ha<SUP>-1</SUP> (20 cm)를 나타냈다. 볏짚 혼입으로 토양경도, 용적밀도는 낮아졌고 공극 률이 증가하여 토양물리성이 개선되었다. 볏짚 수거로 토양유기물, 유효인산 및 유효규산 함량이 적어지고 양이온치환용량 이 낮아졌다. 토양에 볏짚 혼입시 비옥도 감소 폭이 적었고 예취높이별 잔존량이 많을수록 혼입효과가 크게 나타났다. 볏짚 혼입에 따라 수수, 영화수 확보가 많고 등숙비율이 높아졌으며 쌀수량은 관행 (3.67 Mg ha<SUP>-1</SUP>)대비 28~32% 증수되었다. 연구결과 예취방법에 의하여 볏짚을 혼입한 재배기술이 수거에 비하여 쌀수량을 증가시켰고 논토양을 개선하였다. This study was to investigate the effects of rice straw incorporation by cutting height on paddy soil fertility. The average residual amount of rice straw by cutting height were showed 1,420 kg ha<SUP>-1</SUP>, 1,850 kg ha<SUP>-1</SUP>, and 2,400 kg ha<SUP>-1</SUP> for depths of 10 cm, 15 cm, and 20 cm, respectively. For soil physical properties, soil hardness and bulk density were decreased while porosity was increased by rice straw incorporation. But soil organic matter (SOM), available silicate content, and cation exchange capacity (CEC) were significantly decreased when rice straw was removed from the field. These results indicated that the SOM as residual amount of rice straw was influenced by level of cutting height. Milled rice yield was increased by 28% and 32% for cutting heights of 15 cm and 20 cm, compared with that of control, respectively. The number of spikelets per square meter and the percentage of ripeness were increased with increasing incorporation by lower level of cutting height of rice straw. Therefore, incorporation of rice straw practices under cutting method influenced soil improvement and rice yield in paddy field.
김선휴 ( Sun Hyu Kim ),김현 ( Hyun Kim ),지호진 ( Ho Jin Ji ),장용수 ( Yong Soo Jang ),오성범 ( Sung Bum Oh ),이강현 ( Kang Hyun Lee ),황성오 ( Sung Oh Hwang ) 대한임상독성학회 2004 대한임상독성학회지 Vol.2 No.1
Hydrofluoric acid (HF), one of the strongest inorganic acids, is used mainly for industrial purpose. Hydrofluoric acid injuries has a potential for both systemic as well as severe local tissue destruction. One of the most serious consequences of severe exposure to HF by any route is marked lowering of serum calcium (hypocalcemia) and other metabolic changes, such as hypomagnesemia and which may result in a fatal outcome if not recognized and treated. promptly cardiotoxicity is not well known except arrhythmias, which are a primary cause of death. We report a case of myopericarditis by ingestion of hydrofluoric acid.
송선희 ( Sun-hee Song ),석경휴 ( Kyung-hyu Suk ),김철영 ( Chul-young Kim ),김문환 ( You-sun Jeoung ),정유선 ( Moon-hwan Kim ),배철수 ( Chul-soo Bae ),나상동 ( Sang-dong Ra ) 한국정보처리학회 2004 한국정보처리학회 학술대회논문집 Vol.11 No.1
본 논문에서는 컬러정보를 이용하여 외부 조명의 영향에 대응하면서 얼굴 후보영역을 추출하고, 추출된 후보 영역으로부터 다채널 스킨컬러 모델로 특정 정보를 추출하는 검출 기법을 제시한다. 외부 조명에 민감한 스킨컬러 특성을 고려해 색상정보와 광도를 분리할 수 있는 Y C <sub>r</sub> C <sub>b</sub> 색상모델을 이용하며, Green, Blue 채널의 정보를 Gaussian 확률밀도 모델로부터 C <sub>b</sub>- C <sub>g</sub>의 좁은 범위에 분포되어 있는 스킨컬러 영역 밀도를 모델링한다. 또한 얼굴영역에 Region Restricting과 임계값 반복 알고리즘을 사용하여 눈 영역 검출 과정을 보이고, 실시간 복합 얼굴 검출 시스템 조명방식에 의해 결과를 나타낸다.