• 제목/요약/키워드: coordination theory

검색결과 152건 처리시간 0.026초

유전 알고리즘과 밀도 범함수 이론을 이용한 Si (001) 표면에서의 SiH4 또는 Al(CH3)3 전구체의 흡착 배위 탐색 (Search for Adsorption Coordination of SiH4 or Al(CH3)3 on Si (001) Surface Using Genetic Algorithm and Density Functional theory)

  • 김현규;김재선;김영철
    • 반도체디스플레이기술학회지
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    • 제20권4호
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    • pp.16-22
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    • 2021
  • We search for an appropriate initial adsorption coordination of precursor on surface by using genetic algorithm (GA) and density functional theory. SiH4 and Al(CH3)3 as precursor, and OH-terminated Si (001) as surface are used for this study. Selection, crossover, and mutation as hyperparameters of GA are applied to search for the adsorption coordination of the precursors on the surface as a function of generation. Bond distances between precursors and the surface are used to explain the adsorption behavior of the precursors.

Comparative Studies on Two Fluoro-Substituted 2-Pyrazoline Derivatives with Experimental and Theoretical Methods

  • Guo, Huan-Mei;Wang, Xian;Jian, Fang Fang;Xiao, Hai Lian;Zhao, Pu Su
    • Bulletin of the Korean Chemical Society
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    • 제30권5호
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    • pp.1061-1066
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    • 2009
  • Two fluoro-substituted 2-pyrazoline derivatives, 1-phenyl-3-(4-methoxyphenyl)-5-(4-fluorophenyl)-2-pyrazoline (1) and 1-phenyl-3-(4-methoxyphenyl)-5-(2-fluoro-phenyl)-2-pyrazoline (2) have been synthesized and characterized by elemental analysis, IR, UV-Vis and fluorescence spectra. The crystal structure of 1 has been determined by X-ray single crystal diffraction. For the two compounds, density functional theory (DFT) calculations of the structures and natural population atomic charge analysis (NPA) have been performed at B3LYP/6-311G** level of theory. By using TD-DFT method, electron spectra of 1 and 2 have been predicted, which are very approximate with the experimental ones. Comparative studies on 1 and 2 indicate that the location change of fluorine atom in 5-position phenyl ring of 2-pyrazoline does not make significant change of geometries and electronic transition bands, but it leads to evident change of atomic charge distributions and peak intensities of UV and fluorescence spectra.

클라운 분장 코디네이션의 카니발리즘적 특성 연구 (A Study of Clown Makeup Coordination's Carnivalism)

  • 장미숙
    • 한국패션뷰티학회지
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    • 제5권1호
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    • pp.97-111
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    • 2007
  • This study was motivated not only by the curiosity of clown as a comedian, but also by the clown's special makeup coordination. To analyze the clown makeup coordination Carnivalism, the researcher inquired 1) clown's meaning, sorts, periodic roles and stages, 2) Mikhail Bakhtin's Carnival theory, and 3) makeup coordination of clowns (Harlequin, Pierrot, Auguste and White Face Clown) as the theoretical background. The clown makeup coordination carnival characteristics were shown in masquerade, amusement and ambiguity. The masquerade was expressed on the mask for Harlequin and white makeup for Pierrot, Auguste and White Face Clown. The amusement was revealed on the fall and the inharmony of the grotesque makeup and childish costumes. And also the ambiguity was expressed on the sexless and the infant of clown's real nature and costumes.

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Effect of Fashion Coordination Cues on Liking of the Male Wearers

  • Ryu, Ji-Won;Kim, Jae-Sook
    • The International Journal of Costume Culture
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    • 제9권2호
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    • pp.94-103
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    • 2006
  • The purposes of this study were to found out the effects of appearance variables in fashion coordination cues of a male stimulus person and perceiver's traits on the liking of the stimulus person with person perception theory as the research background. The study consisted of a survey and a quasi-experiment. The experimental materials used for this study were 18 stimuli and instruments to measure fashion interest, liking toward the stimulus, and gender body ideology. The sampling method was a convenient sampling. The subjects consisted of 940 male and female undergraduate students aged from 18 to 51, in three areas including Daejoen, Cheongyang and Nonsan provinces. The data collection was conducted between May 1 and June 30, 2004. The validity of the measuring instruments were confirmed by pre-tests and judge group discussions, and reliability was evaluated by Cronbach' alpha analysis. The results showed that Clothing formality, make-up, hair style of stimulus person, and traits of subjects meaningfully affected on the liking toward the stimulus person. The result of the study will serve as a basic information on total fashion coordination for young male adults.

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과학기술혁신본부와 정책조정 방식 변화 (The Office of Science and Technology Innovation and its Implications for Policy Coordination)

  • 김성수
    • 기술혁신연구
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    • 제13권3호
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    • pp.153-173
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    • 2005
  • The Office of Science and Technology Innovation (OSTI) was created by a different method of organizational change from that of precedent administrative reforms. According to results of the new method, the OSTI case can be widely applied to other ministries as an alternative model for governmental reform. The theory part introduced two approaches of organizational reform, namely structural approach which focuses on the level of hierarchial authority and process approach which emphasizes the flow of information/expertise in organizational operation. It also discussed various ways of understanding for S&T policy coordination. After this, the paper reviewed details of the OSTI reform with special reference to implications for the mode of S&T policy coordination. It concludes that the OSTI may offer an opportunity to strengthen the coordination mechanism of the process approach.

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협응이동훈련을 위한 PNF 패턴의 결합 (The Combination of PNF Patterns for Coordinative Locomotor Training)

  • 임재헌;이문규;김태윤;고효은
    • PNF and Movement
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    • 제11권1호
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    • pp.17-25
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    • 2013
  • Purpose : To identify importance of coordinative locomotor training, we reviewed the coordinative locomotor training using sprinter & skater with respect to motor control theory. Methods : We reviewed literatures related with sprinter & skater and coordination.. Results : The coordinative locomotor training is useful tool to improve interlimb coordination. A problem of interlimb coordination ability is to minimize the degree of freedoms during walking and to solve with context-condition variability and how to make a interlimb coordinative structures. A way of solving method is coordinative locomotor training using sprinter & skater in PNF. The coordinative locomotor training set to fit the gait steps can be applied with gait tasks and can be extended by applying the irradiation of the PNF. Conclusion : The coordinative locomotor training using sprinter & skater in PNF is a useful way method to improve interlimb coordination during walking.

프로젝트 기반 과학 활동 과정에서 나타나는 학생 탐구의 특징: 증거-이론-방법의 조정과 도구 사용의 솜씨를 중심으로 (Characteristics of Student Inquiry Found in Project-based Science Practices: Focusing on Theory-Evidence-Method Coordinations and Skills in Using Tools)

  • 이선경;한지원;이재원;노태희
    • 한국과학교육학회지
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    • 제35권4호
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    • pp.599-608
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    • 2015
  • 이 연구에서는 프로젝트 기반으로 자유롭게 주제를 정하고 과학활동을 수행하는 과정에서 나타나는 학생 탐구의 특징을 탐색하였다. 연구 참여자는 고등학교에서 한 학기 동안 과학 동아리 활동에 참여한 4명의 학생들이었다. 학생들은 한 조가 되어 스스로 탐구 주제를 정하고 활동 과정을 계획하고 실행하였다. 학생들의 탐구 활동을 관찰하고 녹화 및 녹음하였으며 자발적으로 면담의사를 표현한 학생과 면대면 반구조화된 면담을 실시하고, 조별 활동지와 보고서를 수집하는 등 다양한 자료를 수집하였다. 탐구의 전 과정은 질적으로 분석하였으며, 학생들의 과학 활동에 대해 해석적으로 분석하였다. 학생 탐구 특징에 관한 연구의 결과는 두 부분으로 제시되었다. 첫째, 과학 활동에서 이론-증거-방법 간의 조정은 다양한 양상으로 나타났다. 구체적으로, 활동의 맥락에 따라 이론-증거의 조정, 증거-방법의 조정, 이론-증거-방법의 조정 양상이 드러났다. 둘째, 학생들은 활동 수행 과정에서 다양한 도구를 선택하고 조합하였으며, 도구 사용에 있어서 체화된 암묵적 지식인 솜씨를 발휘하였다. 연구 결과를 토대로 학교 과학 탐구를 위한 과학 교육 및 연구에의 시사점을 논의하였다.

주의초점 전략이 태권도 기본동작의 속도 및 분절 협응패턴에 미치는 효과 (The Effect of Attention Focusing Strategies on the Speed and Segment Coordination Characteristics of Taekwondo Hand Techniques)

  • 강성철;김기태
    • 한국운동역학회지
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    • 제24권3호
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    • pp.229-238
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    • 2014
  • This study comparatively analyzed the speed and segment coordination characteristics of Taekwondo hand techniques, while different attention focusing strategies were utilized. Ten elite Taekwondo poomsae athletes participated, and three different strategies (no focus, target focus, body focus) were utilized in random order. The hand velocity and upper body segment coordination characteristics were analyzed, with the following results. First, the maximum magnitudes of the hand velocity differed between the focus conditions for the Araenaereomakgi and Momtongjireugi techniques. Second, the angular velocity and kinetic energy transfer patterns of the segments differed between the focus conditions, and in the case of the body focus condition, the movement was more correct according to the theory. Third, the shoulder and elbow joint coordination patterns differed between the focus conditions, with more efficient movement shown with the body focus condition. In conclusion, we confirmed the potential of effectively using an attention focusing strategy in a taekwondo teaching situation. However, the effect on the movement coordination and results of the movement could be changed by a difference in the cue provided or the type of the task. In addition, depending on the task, the attention focusing strategy could affect the efficiency of the movement. Therefore, coaches and masters of Taekwondo will have to constitute determine the appropriate attention focusing cues based on the task.

조형적 측면에서 본 예술로서의 아이메이크업과 의복과의 상관성 연구 - 2000년부터 2010년까지 패션잡지를 중심으로 - (A Study on the Formative Relationship of between Artistic Eye-Makeup and Clothing - Focus on Fashion Magazine From the 2000's to 2010 -)

  • 김은실
    • 복식
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    • 제62권3호
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    • pp.120-136
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    • 2012
  • The purposes of this study is to analyze the formative relationship between artistic eye-makeup and clothes design by focusing on the period from 2000 to 2010 and to find out the development direction of the next makeup design. This study considered formative theory to analyze the formative relationship between artistic eye-makeup and clothes design of $Marian$ $L.$ $Davis$ and $Marilyn$ $R.$ $Delong's$ theory, and analyzed the formative relationship between artistic eye-makeup and clothes design in an aspect of line and form, color and material, The results are as follows: First, the shapes of the artistic eye-makeup such as tear drops, and rectangular paisleys were similar with the form of clothes such as the hourglass, cylinders and mix-types. Second, monotonic color coordination mainly appeared and sometimes contrast color coordination that induced complex contrast coordination were apparent as well. Third, the objects of the artistic eye-makeup such as glitter papers, spangles and beads had similar features as the material of clothes such as silk and spangle, and contrast was partially used like colors. The results suggest that artistic eye-makeup and clothes have an organic relationship, and artistic eye-makeup is changed with formative elements of clothes.