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La reproduction ou représentation de cet article, notamment par photocopie, n'est autorisée que dans les limites des conditions générales d'utilisation du site ou, le cas échéant, des conditions générales ... HERMÈS 68, 2014 Sang-Chin Chun Université Sogang, Séoul Jeong-Im Hyun Université Sogang, Séoul Théorie du complot et communication politique en Corée du Sud Avec la révolution des outils de communication ... La méthode de Gerhards est simple : il divise des fragments de discours en trois catégories : ceux qui men- HERMÈS 68, 2014 Sang-Chin Chun et Jeong-Im Hyun tionnent le révélateur du complot ; ceux qui ...doi:10.3917/herm.068.0234 fatcat:vq7dymhhcrb4haet5r6spkvuju
In this paper, the closedness of ranges and Kato non-singularity of upper triangular operator matrices are investigated. Crowndoi:10.1016/j.jmaa.2009.02.014 fatcat:oxinwwopzzdvlnzceiybdqcmim
Référence électronique Chae-Chun Gim, « Efficience et gouvernance : l'exemple de la Corée du Sud », Revue internationale d'éducation de Sèvres [En ligne], Colloque 2019 : Conditions de réussite des réformes ... Efficience et gouvernance : l'exemple de la Corée du Sud Chae-Chun Gim Traduction : Hélène Bréant Il existe en Corée quatre niveaux de gouvernance : le gouvernement central (échelon national), les bureaux ... Sud Mots-clés : politique éducative, bien-être, égalité des chances, compétition, efficience, normalisation, valeur, gouvernance AUTEURS CHAE-CHUN GIM Yeungnam University, Corée du Sud Le Professeur Gim ...doi:10.4000/ries.7731 fatcat:d7gizzvzlvhsrfahbtr2siu4tu
La reproduction ou représentation de cet article, notamment par photocopie, n'est autorisée que dans les limites des conditions générales d'utilisation du site ou, le cas échéant, des conditions générales ... APPROCHES MULTINIVEAUX DU DILEMME DE LA QUESTION NUCLÉAIRE EN CORÉE DU NORD ET DE LA SÉCURITÉ EN ASIE DU NORD-EST Kwang-Ho CHUN Depuis l'effondrement de l'Union soviétique et la dissolution du bloc communiste ... Pour une discussion plus approfondie, voir CHUN Chae-sung, « The Cold War and Its Transition for Koreans : Their Meanings from A Constructivist Viewpoint », in MOON C-I, WESTAD A., KAHNG G-H (eds.), Ending ...doi:10.3917/ripc.193.0169 fatcat:3glrnzedxrdnna6w6nyspcakhe
Ce que la théorie du complot nous démontre finalement, c'est un réenchantement négatif du monde. Mots clés : théorie du complot, imaginaire conspirationniste, sociologie critique, Bourdieu. ... Certes, la montée en puissance du soupçon de complot démontre l'échec d'un principe téléo- ... du complot. ...doi:10.3917/soc.112.0147 fatcat:bztloujn5beerl2mdhtjpdhsai
Baryonic Isgur-Wise Functions in Large Nc HQET Ming-Kai Du and Chun ... Du and C. Liu, Phys. Rev. D 84 (2011) 056007.  A. K. Leibovich and I. W. Stewart, Phys. Rev. D57, 5620(1998).  J. Beringer et al. (Particle Data Group). Phys. Rev. ...arXiv:1305.1757v1 fatcat:iz5g53sdabcd3kpmf7kpjlb2t4
Pengcheng Wang, Yanyan Du and Chun-Peng Song* Laboratory of Plant Stress Biology; Department of Biology; Henan University; Kaifeng, China permit quick responses to environmental and cellular metabolism ...doi:10.4161/psb.6.6.15308 pmid:21593598 pmcid:PMC3218497 fatcat:vdy7kduls5bbvfk3a63bjlgyle
That means the parameters influencing the phase transition of p-3 Yun-Zhi Du et al. the HL AdS black hole are different from other normal thermodynamic systems. ...arXiv:1909.09968v1 fatcat:45nc7c6gffgy7odogeoczq6q2a
Textile Science and Engineering
철강산업 Slitting용 접압이송 벨트의 내구성실험
철강산업 Slitting용 접압이송 벨트의 내구성실험
This study aimed to investigate a durability test of a textile composite belt for use in steel slitting. The belt was developed by combining scrim fabric and a nonwoven sheet composite with resin impregnation and a silicon finish. Because resin impregnation is necessary for a textile composite slitting belt, this study focussed primarily on examining two different types of resin influencing the belt durability, namely, thermosetting resin PVB and thermoplastic resin PET. The accelerated testdoi:10.12772/tse.2015.52.167 fatcat:yjwa6vth3bfzbjrohpvtvtuwzi
more »... ditions were obtained through a performance comparison with reference belt (50 hr with 500N load). The results indicate that thermosetting PVB is more suitable for the overall durability of a belt under repeated load conditions with friction when compared to thermoplastic PET, although PVB tends to increase the brittleness in comparison when compared to PET.
Based on mechanical properties of Polyamide 66 (PA66) under complex loading conditions, a Drucker–Prager yield criterion was employed to characterize its yield behavior. Then, a one-dimensional model, which contains a viscoelastic regime and a viscoplastic regime, was introduced and converted into a three-dimensional constitutive model. The three-dimensional model was implemented into a LS-DYNA software, which was used to predict the dynamic response of PA66 under Taylor impact conditions,doi:10.3390/polym12071615 pmid:32708081 fatcat:3ojdozw53jauddooy6knnwnwv4
more »... corresponding tests were conducted by gas gun and recorded by high-speed camera. By contrasting the simulation results and these of the corresponding tests, the deformed shapes including the residual length, the maximum diameter and the shape of the mushroom head of the PA66 bars were found to be similar to these obtained from the tests, which verified the accuracy of the three-dimensional constitutive model, and proved that the model was able to be applied to high-rate impact loading conditions.
Chen  , Z.H Du  , and C.X. Du  . ... Presently, the high-density WHA and depleted uranium alloy (DU) are the penetrator materials. ...doi:10.3390/cryst12020284 fatcat:gbjfnfc7azguvk27t4z2zybyzq
Eigenvalue-based detectors are considered as an important method of spectrum sensing since they do not require the information about the primary user (PU) signal. In this paper we propose a method to improve the performance of the eigenvalue-based detector. The proposed method introduces a new test statistic based on combinatorial matrix with components which are overlapping subgroups extracted from the array of received signals. As a result, its covariance matrix has a larger maximumarXiv:1504.07738v1 fatcat:srdqhlyz35h5pibh5em6pdsdzi
more »... and trace value than the one without overlapping. Simulation results show that our proposed method can further improve the detection performance of the optimal eigenvalue-based detector. The paper also shows the effect of different overlapping methods on the receiver operating characteristic curve.
Du and Yao thank the Open Research Fund Program of Key Laboratory of Mathematical Economics (SUFE), the Ministry of Education for supports. ... Du and Yao are also supported by Leading Academic Discipline Program, 211 Project for Shanghai University of Finance and Economics (the 4th phase). ...doi:10.1016/j.euroecorev.2013.07.012 fatcat:gumog7y5affopp7tzmpjpf2c3u
Book Review: Chun, C. W. (2015). Power and Meaning Making in an EAP Classroom: Engaging with the Everyday. Chun, C. W. (2015) . ... Reviewed by: Xiaoxiao Du, Western University Chun's book contributes to the existing literature regarding English for Academic Purpose (EAP) learning and teaching as well as it provides insights about ...doi:10.5206/cie-eci.v45i1.9286 fatcat:xmhyurwvs5b4jnb5t37uvys2m4
Physical Review B
Through numerical experiments, we demonstrate an electron tomography method for three-dimensional (3D) structural determination of amorphous materials at atomic resolution. By combining multislice simulations of an aberration-corrected scanning transmission electron microscope with equally sloped tomography, we have determined the 3D atomic structure of a simulated glass particle, consisting of 334 Si and 668 O atoms, from a tilt series of 55 noisy projections. An atomic model refinement methoddoi:10.1103/physrevb.88.100201 fatcat:rfylevyxjnb7ndfbuqjoudql6a
more »... has been implemented to locate the positions of the Si and O atoms in the reconstruction. We expect that the development of this general method will find applications across several disciplines in the physical sciences. The three-dimensional (3D) atomic structures of amorphous materials, such as glasses, are key to understanding the origin of glass transitions and associated phenomena. 1 Previous studies of amorphous structures have relied on conventional diffraction, scattering, Raman, and nuclear magnetic resonance spectroscopy, coupled with computational methods, such as molecular-dynamics and ab initio calculations.         Recently, atomic resolution transmission electron microscopy has been used to directly image a two-dimensional (2D) silica glass supported on graphene. 10 However, presently, there are no experimental methods available to directly image the atomic structure of amorphous materials in three dimensions. A very promising technique to overcome this barrier is electron tomography. 11-17 The combination of annular dark-field (ADF) scanning transmission electron microscopy 18 (STEM) and a novel data acquisition and image reconstruction method known as equally sloped tomography 19-27 (EST) has recently achieved a 3D reconstruction of a Au nanoparticle at 2.4-Å resolution from a tilt series of 69 projections. 16 The center of mass (c.m.) approach has been used to align the projections of the tilt series at atomic precision. 16 EST has been shown to partially recover missing information in the reconstruction better than other tomographic reconstruction algorithms. 21 This missing information arises from the need to limit the number of total projections due to radiation damage as well as the missing wedge problem (i.e., specimens cannot usually be tilted beyond ± 79 • ). More recently, electron tomography has been applied to image nearly all the atoms in a Pt nanoparticle, and the atomic core structure of edge and screw dislocations in the nanoparticle have been observed in three dimensions. 17 Here, we make another significant advance in electron tomography and demonstrate, through numerical experiments, a general method for 3D structural determination of amorphous materials at atomic resolution. By combining multislice STEM simulations 28 with EST, 16, 17,          we have shown the feasibility of determining the 3D atomic structure of a (24.7 × 24.7 × 24.7) −Å 3 amorphous silica particle. The atomic structure of the amorphous silica particle was generated by molecular-dynamics simulations. Presently, there are several methods available for the simulation of amorphous structures, such as reverse Monte Carlo 5 and molecular dynamics. 6 In this Rapid Communication, a simulated melt and quench approach was used to generate an amorphous silica structure with a cooling rate of 2.5 K/ps. A set of partial charge Buckingham potentials was employed in the molecular-dynamics simulations. 7 The amorphous silica structure obtained by this approach has few coordination defects 29 and is in good agreement with neutron-diffraction data. 30 The glass structure, consisting of 334 Si atoms and 668 O atoms (Fig. 1) , was used to calculate a tomographic tilt series by multislice STEM simulations. 28 An aberration-corrected STEM with an electron energy of 80 keV was employed in the calculation (spherical aberration: 0; fifth order spherical aberration: 2.5 mm; probe FWHM: 0.8Å; pixel size: 0.5Å). In our multislice simulations, we first determined the optimal illumination semiangle and detector inner and outer angles by calculating a number of tilt series. Each tilt series consists of 55 projections with a tilt range of ± 72.6 • and equalslope tilt increments between projections. 16, 17,          To simulate potential errors in experimental conditions, the ideal EST tilt angles were continuously shifted by 0 • to 0.5 • throughout the process of the tilt series was randomly shifted in the image plane. Each tilt series was quantified by R tilt , defined as where P θ l (x,y) represents the linear projection of the Coulomb potential of the glass particle and P θ m (x,y) represents the multislice simulated projection at tilt angle θ . By averaging R θ tilt for 55 projections, we calculated R tilt for each tilt series. Table I shows R tilt as a function of the illumination semiangle and detector inner and outer angles. R tilt is smallest when the illumination semiangle is 27 mrad and the detector inner and outer angles are 80 and 400 mrad, respectively. Poisson noise was added to the optimal tilt series equivalent to a total electron dose of 2.2 × 10 6 , 1.43 × 10 6 , 5.5 × 10 5 , and 3.0 × 10 5 e/Å 2 , respectively. An R noise was used to quantify the noise level for
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