• Title/Summary/Keyword: structure determination

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Wage Determination Process and Income Disparity in Korean Metropolitan Cities (우리나라 광역대도시 지역노동시장의 임금결정과정과 소득격차)

  • 이원호
    • Journal of the Economic Geographical Society of Korea
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    • v.5 no.2
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    • pp.187-207
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    • 2002
  • This study investigates the wage determination process of regional labor markets in order to understand the regional dimension of labor market processes in Korean metropolitan cities. Since the financial crisis in late 1997, the interplay between labor market restructuring such as unemployment and skill polarization and income disparity has been shaped by the labor market process in the metropolitan cities. This is also closely related to the fact that both industrial restructuring and expanding information technologies in the metropolitan region have reshaped the labor demand structure and finally resulted in structural unemployment due to skill mismatch and spatial mismatch and wage inequality across different occupations. In addition, since wage determination process clearly has a regional dimension, wage determination and its influence on income profile in a certain regional labor market need to be understood by investigating its labor market characteristics including labor supply and demand structure, industrial changes, changing unemployment, etc. This is why labor market policy as a regional policy needs to be redefined and it can be much enhanced by geographical investigation on regional labor market.

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Reexamination of Behavioral Activation and Inhibition Scale and Motivation for Self-determination in P·E Class (체육수업 상황에서 행동활성화와 억제 척도의 재검증과 자기결정성 동기의 관계)

  • Choi, Hun-Hyuk;Huh, Jin-Young
    • 한국체육학회지인문사회과학편
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    • v.51 no.5
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    • pp.229-241
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    • 2012
  • The purpose of this study was to identify the reexamination effects of behavioral activation·inhibition scale(Choi & Huh, 2010) on self-determination in order to analysis situational structure for P·E class which is perceived by students. To obtain the purpose, 656 high-school students from Gyeonggi-do area answered questionnaire using convenient sampling method. Data which is obtained through self-administration was analyzed using by the frequency analysis, multiple reguression analysis, EFA, and CFA with SPSS 18.0 and AMOS 16. Results were as followed. First, the more students have friend relation, teacher behavior, emotion change, and positive class attitude that are sub-factors of behavioral activation·inhibition, the more they have self-determination. Second, the less students have typical class structure, negative teacher's attitude, punishment, and lack of self-efficacy, the more they have self-determination. Overall results were discussed for practical application in P·E class.

Method for soil-structure dynamic interaction analysis(I) (지반-구조물의 동적 상호작용 해석법(I))

  • 황성춘
    • Proceedings of the Earthquake Engineering Society of Korea Conference
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    • 2001.04a
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    • pp.144-151
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    • 2001
  • The development history of seismic design and analysis methods considering seismic force in soil-structure dynamic interaction are presented. Determination of seismic intensity in static analysis of both seismic and modifided seismic methods is discussed and preferable method in future seismic design is proposed.

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Structure Determination of Antifungal KRF-001 Produced by Bacillus subtilis subsp. krictiensis (Bacillus subtilis subsp. krictiensis가 생산하는 항진균 물질 KRF-001의 구조 결정)

  • 김성기;이남경;정태숙;김영국;최진자;복성해
    • Microbiology and Biotechnology Letters
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    • v.19 no.6
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    • pp.598-603
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    • 1991
  • An antifungal mixture of six members (component A to F), KRF-001 produced by Bacillzts subtilis subsp. krictiensis was isolated from the fermentation broth. Molecular weight of component A to F was determined by FAB-MS to be 1042, 1056, 1056, 1070, 1070 and 1084 respectively. Various instrumental analyses (amino acid analysis, GC-MS, $^1H-NMR, ^1HH$ COSY NMR) revealed that the mixture was a homologous cyclic peptide composed of each one mole of glutamine, proline, tyrosine, serine, unusual $\beta$-amino acid and three moles of asparagine. The structural differences of component A to F were found in carbon number and terminal structure of the unusual $\beta$-amino acid. After determination of the sequence and stereochemistry of those amino acids, the tentative structure of KRF-001 was determined.

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Optimum control system for earthquake-excited building structures with minimal number of actuators and sensors

  • He, Jia;Xu, You-Lin;Zhang, Chao-Dong;Zhang, Xiao-Hua
    • Smart Structures and Systems
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    • v.16 no.6
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    • pp.981-1002
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    • 2015
  • For vibration control of civil structures, especially large civil structures, one of the important issues is how to place a minimal number of actuators and sensors at their respective optimal locations to achieve the predetermined control performance. In this paper, a methodology is presented for the determination of the minimal number and optimal location of actuators and sensors for vibration control of building structures under earthquake excitation. In the proposed methodology, the number and location of the actuators are first determined in terms of the sequence of performance index increments and the predetermined control performance. A multi-scale response reconstruction method is then extended to the controlled building structure for the determination of the minimal number and optimal placement of sensors with the objective that the reconstructed structural responses can be used as feedbacks for the vibration control while the predetermined control performance can be maintained. The feasibility and accuracy of the proposed methodology are finally investigated numerically through a 20-story shear building structure under the El-Centro ground excitation and the Kobe ground excitation. The numerical results show that with the limited number of sensors and actuators at their optimal locations, the predetermined control performance of the building structure can be achieved.

Conformational Studies of Macrocyclic Corrin-Ring of Coenzyme B12 by NMR methods

  • Kim, Daesung;Park, Jung-Rae;Hoshik Won
    • Journal of the Korean Magnetic Resonance Society
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    • v.3 no.1
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    • pp.44-51
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    • 1999
  • An enzyme derived conformational changes of cobalamine is thought to be important in the homolytic cleavage of Co-C bond which is the first step of catalytic Cl-cycle of coenzyme B12-dependent enzymes. Modern 2D-NMR and NMR-based distance geometric studies were carried out to determine the 3D structure of corrin ring. Homonuclear and heteronuclear correlation NMR experiments were performed for complete 1H-NMR signal assignments. Distances between numerous proton pairs were deduced based on the NOE cross peak intensities and subsequently used as input into the distance geometry program for the 3D structure determination. The detailed 3D structure from the present NMR-based analysis was compared with the result from X-ray crystallographic study, which revealed greater conformational changes occur in benzimidazole group and sugar ring than in macrocyclic corrin and tetrapyrrole. In addition, the distance geometry used in this study was found to be quite useful for NMR-based structure determination of medium-sized molecules that give poor NOE effects arising from their intermediate tumbling rate ($\omega$$\tau$c 1.0).

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