• 제목/요약/키워드: mimetic

검색결과 178건 처리시간 0.023초

제도적 압력이 IT투자 의사결정에 미치는 영향 (An Understanding the Effect of Institutional Pressures on IT Investment Decision Making of Managers)

  • 최성욱;임명성
    • 디지털융복합연구
    • /
    • 제10권11호
    • /
    • pp.175-183
    • /
    • 2012
  • 본 연구는 조직 외부적 요인인 제도적 압력이 의사결정자의 IT투자 의사결정에 미치는 영향을 규명하기 위해 수행되었다. 제시된 연구모형을 분석하기 위해 중소기업을 대상으로 설문을 배포하여 데이터를 수집하였다. 수집된 데이터는 PLS 기법을 활용하여 분석하였다. 분석 결과 강압적 압력과 규범적 압력은 IT투자 의사결정에 유의한 영향을 미치지 않았으나 모방적 압력에 유의한 영향을 미치는 것으로 나타났다. 모방적 압력은 IT투자 의사결정에 유의한 영향을 미치는 것으로 나타났다.

Solution State Structure of pB1, the Mimotopic Peptide of Apolipoprotein B-100, by NMR

  • Lee, Sung-Ran;Kim, Dae-Sung;Kim, Hyo-Joon;Lee, Yong-Woo;Won, Ho-Shik
    • Bulletin of the Korean Chemical Society
    • /
    • 제25권12호
    • /
    • pp.1845-1849
    • /
    • 2004
  • Apolipoprotein B-100 (Apo-B100) is a major protein component for low density lipoproteins (LDL). A number of mimetic peptides of Apo-B100 were screened from the phase-displayed random peptide library by utilizing monoclonal antibody (B9). Mimetic peptide for B9 epitope against apo B-100 was CRNVPPIFNDVYWIAF (pB1). From the BLAST search, the mimetic peptide pB1 had 40% homology with apo B-100. As a result of the structural determination of this mimotope using homo/hetero nuclear 2D-NMR techniques and NMR-based distance geometry (DG)/molecular dynamic (MD) computations, DG structure had low penalty value of 0.3-0.6 ${\AA}^2$ and the total RMSD was 0.5-1.5 ${\AA}. Moreover, pB1 structure included a weak $3_{10}$-helix from $Ile^7$,/TEX> to $Trp^{13}$.

예술 공간의 미메시스적 재구성: 황재형의 작품론을 쓰기 위한 기초 (The Mimetic Reconstruction of Artistic Space through Works of Hwang, Jai Hyoung)

  • 박구용
    • 철학연구
    • /
    • 제116호
    • /
    • pp.105-128
    • /
    • 2017
  • 이 글은 황재형의 작품세계를 예술공간의 미메시스적 재구성이라는 프레임으로 읽어보려고 시도한다. 나는 황재형의 작품이 품고 있는 세계가 그 자신의 주관적 경험으로 환원되지 않는 공간으로 구성되어 있다고 생각한다. 작품 속의 공간은 황재형 작가가 음악적으로 사태에 동화되는 과정, 곧 미메시스를 통해 재구성한 세계로 읽힌다. 이런 읽기를 위해 나는 먼저 빛과 어둠의 교차로에서 그의 작품과 소통하는 길을 찾고자 한다(2). 이 길에서 미메시스적 반응으로 재구성된 황재형 작품의 예술 공간 안팎을 넘나들다가(3), 시간을 품은 공간을 통과해(4) 길 밖으로 나온다(5).

A Joint Motion Planning Based on a Bio-Mimetic Approach for Human-like Finger Motion

  • Kim Byoung-Ho
    • International Journal of Control, Automation, and Systems
    • /
    • 제4권2호
    • /
    • pp.217-226
    • /
    • 2006
  • Grasping and manipulation by hands can be considered as one of inevitable functions to achieve the performances desired in humanoid operations. When a humanoid robot manipulates an object by his hands, each finger should be well-controlled to accomplish a precise manipulation of the object grasped. So, the trajectory of each joint required for a precise finger motion is fundamentally necessary to be planned stably. In this sense, this paper proposes an effective joint motion planning method for humanoid fingers. The proposed method newly employs a bio-mimetic concept for joint motion planning. A suitable model that describes an interphalangeal coordination in a human finger is suggested and incorporated into the proposed joint motion planning method. The feature of the proposed method is illustrated by simulation results. As a result, the proposed method is useful for a facilitative finger motion. It can be applied to improve the control performance of humanoid fingers or prosthetic fingers.

Development of a Bio-mimetic Quadruped Walking Robot with Waist Joint

  • Kim, Dong-Sik;Park, Se-Hoon;Kim, Kyung-Ho;Lee, Yun-Jung
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 제어로봇시스템학회 2004년도 ICCAS
    • /
    • pp.1530-1534
    • /
    • 2004
  • This paper presents a novel bio-mimetic quadruped walking robot with a waist joint, which connects the front and the rear parts of the body. The new robot, called ELIRO-1(Eating LIzard RObot version 1), can bend its body while the legs is transferred, thereby increasing the stride and speed of the robot. The waist-jointed walking robot can move easily from side to side, which is an important feature to guarantee a larger gait stability margin than that of a conventional single rigid-body walking robot. We design the mechanical structure of the robot, which is small and light to have high movability and high degree of human friendship. In this paper, we describe characteristics of the waist joint and leg mechanism as well as the analysis using ADAMS to select appropriate actuators. In addition, a hardware and software of the controller of ELIRO-1 are described.

  • PDF

Solution Structure of pA2, the Mimotopic Peptide of Apolipoprotein A-I, by NMR Spectroscopy

  • Won, Ho-Shik
    • Bulletin of the Korean Chemical Society
    • /
    • 제32권11호
    • /
    • pp.4016-4020
    • /
    • 2011
  • A number of mimetic peptides of apolipoprotein A-I, a major component for high density lipoproteins (HDL), were screened from the phase-displayed random peptide library by utilizing monoclonal antibodies (A12). A mimetic peptide for A12 epitope against apolipoprotein A-I was selected as FVLVRDTFPSSVCCP(pA2) exhibiting 45% homology with Apo A-I in the BLAST search. Solution structure determination of this mimotope was made by using 2D-NMR data and NMR-based distance geometry (DG)/molecular dynamic calculations. The resulting DG structures had low penalty value of 0.4-0.6 ${\AA}^2$ and the total RMSD of 0.7-1.7 ${\AA}$. The mimotope pA2 exhibited a characteristic ${\beta}$-turn conformation from Val[2] to Phe[8] near Pro[9] residue.

DPPC Liposome에 미치는 고들빼기 추출물의 DSC 연구 (The Effects of Godulbaegi Extracts on the Fluidity of Phospholipid Liposomes by DSC)

  • 배송자;김남홍;노승배;정복미
    • 한국식품영양과학회지
    • /
    • 제27권3호
    • /
    • pp.518-524
    • /
    • 1998
  • Liposomes have been widely employed as biomembrane-mimetic system and drug-delivery system. In these applications, the low stability of liposomes has been the most serious problem. They have relatively short half-lives and easily lysed through interactions with biological components. This study was performed to investigate the effects of godulbaegi extracts on the fludity of phospholipid liposomes. We used dipalmitoyl phosphatidylcholine(DPPC) liposomes which make most stable liposomes among the other phosphatidylcholines. The thermograms of the DPPC liposomal bilayers incorporated with the hexane extract of godulbaegi(Ixeris sonchifolia H.) were obtained, and the enthalpy changes and the sizes of cooperative unit of the transition were calculated. The incorporation of the Ixeris sonchifolia H. into the liposomal bilayers effectively reduced the transition temperature at which the transition from gel state to liquid-crystalline state occurs, broadened the thermogram peaks, and reduced the ratio of van't Hoff to calorimetric enthalpies. These results indicate indicate that the godulbaegi extracts (Ixeris sonchifolia H.) have significant effects on the fluidity of biological membrance.

  • PDF

Robot manipulator's contact tasks on uncertain flexible objects

  • Wu, Jianqing;Luo, Zhiwei;Yamakita Masaki;Ito, Koji
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 제어로봇시스템학회 1995년도 Proceedings of the Korea Automation Control Conference, 10th (KACC); Seoul, Korea; 23-25 Oct. 1995
    • /
    • pp.460-463
    • /
    • 1995
  • The present paper studies a robot manipulator's contact tasks on the uncertain flexible objects. The flexible object's distributed parameter model is approximated into a lumped "position state-varying" model. By using the well-known nonlinear feedback compensation, the robot's control space is decomposed into the position control subspace and the object's torque control subspace. The optimal state feedback is designed for the position loop, and the robot's contact force is controlled through controlling the resultant torque on the object using model-reference simple adaptive control. Experiments of a PUMA robot interacting with an aluminum plate show the effectiveness of this control approach. approach.

  • PDF