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See detail(In)Visible Bodies: Rewriting the Politics of Passing in Incognegro, a Graphic Mystery by Mat Johnson and Warren Pleece
Dony, Christophe ULg

Conference (2013, January 03)

How can passing across racial lines be described and conveyed in the comics form? Can the medium develop specific strategies to comment on the themes of transgression and crossing inherent to the trope of ... [more ▼]

How can passing across racial lines be described and conveyed in the comics form? Can the medium develop specific strategies to comment on the themes of transgression and crossing inherent to the trope of passing? This paper shows how the graphic novel Incognegro (2008) goes beyond the traditional socio-historical analysis of passing and plays thematically, generically, and visually with the politics of the trope. Incognegro, set in the US in the early 1930s, depicts a light-skinned African American reporter who passes for white in order to investigate lynchings of blacks in the deep South. Because white papers do not consider these events to be news, the reporter condemns these dreadful acts in the column titled “Incognegro” that he writes for a New York-based newspaper, The New Holland Herald. Thus he risks his life using his “passing abilities” to protect the rights of the community he is trying to defend from white hegemony. In this way, Incognegro challenges the conventional tragic mulatto figure that passes for white to avoid racism and violence or to improve his/her social status. In addition, it echoes the common black trickster figure who practices “masking” to outwit his enemies or opponents, and calls into question the biological, social, and cultural representations of race as perceived by the white dominant group. Here the racial passer functions as an “outsider from within” who can challenge the black vs. white binary model. Moreover, the text subverts narrative paradigms from superhero comics and detective fiction to point out the arbitrariness of racial ideologies and the fallibility of notions of justice and truth. This subversion is further complicated by the comic’s “color free” art (black and white, sans halftones or gray tones), which defies essentialist representations of race. In sum, Incognegro argues that the ambiguities of racial categorization are best represented through a similarly ambiguous literary genre—one that not only challenges generic norms and traditions but also “writes back” to both the mainstream and alternative wings of American comics production. [less ▲]

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See detailIn-capillary derivatization with (-)-1-(9-fluorenyl)ethyl chloroformate as chiral labeling agent for the electrophoretic separation of amino acids.
Fradi, Ines ULg; Farcas, Elena ULg; Said, Azza Ben et al

in Journal of chromatography. A (2014), 1363

An original micellar electrokinetic chromatography (MEKC) method using in-capillary derivatization with a chiral labeling reagent was developed for the separation of amino acid (AA) derivatives. The ... [more ▼]

An original micellar electrokinetic chromatography (MEKC) method using in-capillary derivatization with a chiral labeling reagent was developed for the separation of amino acid (AA) derivatives. The potential of (-)-1-(9-fluorenyl)-ethyl chloroformate (FLEC) as in-capillary derivatization agent is described for the first time. Several parameters for in-capillary derivatization and subsequent MEKC separation were systematically investigated using experimental designs. Firstly experimental conditions for in-capillary derivatization were optimized using face-centered central composite design (FCCD). Mixing voltage and time as well as concentration of the labeling solution were investigated. Efficient labeling was achieved by sequential injection of AAs and FLEC labeling solution followed by the application of a voltage of 0.2kV for 570s. The background electrolyte (BGE) composition was then optimized in order to achieve selectivity. A FCCD was performed with two factors, namely the sodium dodecyl sulfate (SDS) concentration and the percentage of propan-2-ol (IPA). The separation of 12 pairs of derivatized AA (FLEC-AA) diastereomers was achieved with resolution values comprised between 3 and 20. Furthermore, an efficient derivatization and separation of 29 FLEC-AA derivatives were achieved in a single run using a buffer made up of 40mM sodium tetraborate, 21mM SDS and 8.5% IPA. The method was successfully applied to the analysis of spiked artificial cerebrospinal fluid (aCSF) sample. [less ▲]

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See detailIN-FLIGHT PERFORMANCE OF THE SOLAR UV RADIOMETER LYRA / PROBA-2
Stockman, Yvan ULg; Defise, Jean-Marc ULg; Halain, Jean-Philippe ULg et al

(2010, October 05)

LYRA is a solar radiometer, part of the PROBA-2 micro-satellite payload. The PROBA-2 mission has been launched on 02 November 2009 with a Rockot launcher to a Sun-synchronous orbit at an altitude of 725 ... [more ▼]

LYRA is a solar radiometer, part of the PROBA-2 micro-satellite payload. The PROBA-2 mission has been launched on 02 November 2009 with a Rockot launcher to a Sun-synchronous orbit at an altitude of 725 km. Its nominal operation duration is two years with possible extension of 2 years. LYRA monitors the solar irradiance at a high cadence (> 20Hz) in four soft X-Ray to VUV large passbands: the “Lyman-Alpha” channel, the “Herzberg” continuum range, the “Aluminium” and “Zirconium” filter channels. The radiometric calibration is traceable to synchrotron source standards. LYRA benefits from wide bandgap detectors based on diamond. It is the first space assessment of these revolutionary UV detectors for astrophysics. [less ▲]

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See detailIn-line characterization of heterojunction bipolar transistor base layers by high-resolution x-ray diffraction
Nguyen, Ngoc Duy ULg; Loo, R.; Hikavyy, A. et al

in ECS Transactions (2007), 10

The suitability of high-resolution X-ray diffraction (HRXRD) as an in-line measurement tool for the characterization of heterojunction bipolar transistor SiGe base layers and Si cap layers was ... [more ▼]

The suitability of high-resolution X-ray diffraction (HRXRD) as an in-line measurement tool for the characterization of heterojunction bipolar transistor SiGe base layers and Si cap layers was investigated. We showed that despite of polycrystalline Si on the mask material of patterned wafers, HRXRD measurements performed on an array of small windows yield results which are comparable to those that were obtained on a window which is larger than the size of the source beam, regarding the thickness and the Ge content of the SiGe layers. The possibility to extract layer parameters for active device windows of different sizes was therefore demonstrated. The suitability of HRXRD for in-line measurement of the Si cap thickness was also assessed and the sensitivity of this technique for determining the substitutional boron concentration in SiGe was studied. The detection limit in the monitoring of the active dopant concentration was about 2.7 × 1019 cm-3. [less ▲]

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See detailIn-Line Concentration and Enantioseparation of Clenbuterol by Transient Isotachophoresis-Capillary Zone Electrophoresis-Uv Detection
Toussaint, B.; Gysler, J.; Hubert, Philippe ULg et al

in Biomedical Chromatography : BMC (2000), 14(1), 32-3

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See detailIn-line concentration and enantioseparation of clenbuterol by transient ITP-CE-UV
Toussaint, B.; Bergmann, J.; Hubert, Philippe ULg et al

Poster (1999)

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See detailAn in-line shearography setup based on circular polarization gratings
Blain, Pascal ULg; Piron, Pierre ULg; Renotte, Yvon ULg et al

in Optics & Lasers in Engineering (2013)

The shearing amount defines the resolution of a speckle shearing interferometer and the shearing direction defines the sensitivity direction of the setup. The properties of circular (cycloid) holographic ... [more ▼]

The shearing amount defines the resolution of a speckle shearing interferometer and the shearing direction defines the sensitivity direction of the setup. The properties of circular (cycloid) holographic polarization gratings recorded in liquid crystal polymers can be used to build a new multi-shearing direction and amount shearography setup. The polarization states of the diffracted beams offer an easy way to produce phase shifts and thus to compute the phase contained in the shearograms. The theoretical bases of such a device are highlighted and an original compact and full in-line setup is proposed. First experimental results of delamination detection and flaw detection by shearography are presented. A discussion on the importance of the grating recording and the polarization orientation points out the best working requirements. [less ▲]

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See detailIn-orbit diagnostics of EIT EUV CCD radiation-induced aging
Defise, Jean-Marc ULg; Clette, Frédéric; Moses, J. et al

in Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series (1997)

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See detailIn-orbit performances of the EIT instrument on board SOHO and intercalibration with the EIT Calroc Sounding Rocket program
Defise, Jean-Marc ULg; Moses, J~D; Clette, Fr. et al

in Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series (1998)

Detailed reference viewed: 19 (2 ULg)
See detailIn-orbit verification, calibration, and performance of the Heliospheric Imager on the STEREO mission
Eyles, Chris; Davis, Chris; Harrison, Richard et al

in Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series (2007)

The Heliospheric Imager (HI) forms part of the SECCHI suite of instruments aboard the two NASA STEREO spacecraft which were launched successfully from Cape Canaveral AFB on 25 Oct 2006 (26 Oct UTC ... [more ▼]

The Heliospheric Imager (HI) forms part of the SECCHI suite of instruments aboard the two NASA STEREO spacecraft which were launched successfully from Cape Canaveral AFB on 25 Oct 2006 (26 Oct UTC). Following lunar swingby's on 15 Dec and 21 Jan respectively, the two spacecraft were placed in heliocentric orbits at approximately 1 AU - one leading and one lagging the Earth, with each spacecraft separating from the Earth by 22.5° per year. Each HI instrument comprises two wide-angle optical cameras - HI-1 and HI-2 have 20° and 70° fields-of-view which are off-pointed from the Sun direction by 14.0° and 53.7° respectively, with the optical axes pointed towards the ecliptic plane. In this way the cameras will for the first time provide stereographic images of the solar corona, and in particular of Coronal Mass Ejections (CMEs) as they propagate outwards through interplanetary space towards the Earth and beyond. The wide-field coverage of HI enables imaging of solar ejecta from 15 to about 330 solar radii whilst the other SECCHI instruments (2 coronagraphs and an EUV imager) provide coverage from the lower corona out to 15 solar radii. This paper briefly reviews the design and performance requirements for the instrument. The various activation, checkout and calibration activities before and after opening the instrument's protective cover or door (instrument 'first-light') are then described and it is shown that the instrument has met the design requirements, including CCD and camera imaging performance, correction for shutterless operation of the cameras, straylight rejection and thermal requirements. It is demonstrated from observations of a CME event on 24-25 Jan 2007 that the instrument is capable of detecting CMEs at an intensity of 1% of the coronal background. Lessons learnt during the design, development and in-orbit operation of the instrument are discussed. [less ▲]

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See detailIn-orbit vibration testing of spacecraft structures
Poncelet, Fabien ULg; Kerschen, Gaëtan ULg; Golinval, Jean-Claude ULg

in International Conference on Noise and Vibration Engineering, Leuven, 2008 (2008)

In-orbit modal testing can be an interesting tool for the monitoring of spacecraft structures. In these applications, it is impossible to measure or to control the excitation resulting, for instance, from ... [more ▼]

In-orbit modal testing can be an interesting tool for the monitoring of spacecraft structures. In these applications, it is impossible to measure or to control the excitation resulting, for instance, from an impact with a small asteroid or from the working engines. Consequently the only realistic methodology must be an outputonly modal analysis, also called Operational Modal Analysis (OMA). This paper proposes another way of doing OMA where the post-processing (i.e. the physical modal parameter extraction) is simplified and automated. The methodology uses the Blind Source Separation (BSS) techniques which attempt to recover the source signals only from their observed mixtures. In case of structural dynamic responses, the source signals and the mixing matrix are equivalent to the modal coordinates and the mode matrix, respectively. The paper describes the complete methodology including the post-processing, and its feasibility is demonstrated using a numerical application modeling a truss satellite with the FE method. [less ▲]

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See detailIn-plane and out-of-plane holographic interferometry with multibeam photorefractive recordings in sillenite photorefractive crystals
Thizy, Cédric ULg; Georges, Marc ULg; Scauflaire, V. et al

in Delaye, Ph; Denz, C.; Mager, L. (Eds.) Photorefractive Effects, Materials, and Devices (2003, June)

In this paper we present results of the multiple beams recording in photorefractive crystals for multidirectional measurement of object displacement by holographic interferometry. Taking advantage of the ... [more ▼]

In this paper we present results of the multiple beams recording in photorefractive crystals for multidirectional measurement of object displacement by holographic interferometry. Taking advantage of the possibility to record several holograms in the photorefractive crystal without noticeable cross-talk and loss of signal-to-noise ratio, we demonstrate the applicability of this technique to high resolution metrology and nondestructive testing. A first part of the paper is devoted to metrological certification of the process. On the basis of known "in-plane" and "out-of plane" movements, we certify the measurement deconvolution algorithm and error. A second part will concern the measurement of thermo-mechanical composite material properties (Poisson coefficient, ...) with a compact transportable head using double recording illumination [less ▲]

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See detailIn-plane anisotropic vortex motion induced by a square array of antidots
Silhanek, Alejandro ULg; Van Look, L.; Raedts, S. et al

in Physica C: Superconductivity (2004), 404(1-4), 340-344

We report on electro-transport measurements on a Pb thin film with a square array of antidots, for the whole angular range of in-plane current orientations. We demonstrate that the interaction of a moving ... [more ▼]

We report on electro-transport measurements on a Pb thin film with a square array of antidots, for the whole angular range of in-plane current orientations. We demonstrate that the interaction of a moving flux line lattice with a periodic pinning potential, breaks the rotational symmetry and induces a guided vortex motion along the principal symmetry orientations of the pinning array. As a consequence, we found that for orientations different than the symmetry directions, the vortex velocity is not aligned with the Lorentz force. We show that this anisotropic vortex motion is temperature dependent and progressively fades out when approaching the normal state. (C) 2004 Elsevier B.V. All rights reserved. [less ▲]

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See detailIn-silico models of trabecular bone: a sensitivity analysis perspective
Mengoni, Marlène ULg; Sikora, Sebastien N.F.; d'Otreppe, Vinciane et al

in Geris, Liesbet; Gomez-Cabrero, David (Eds.) Uncertainty in Biology: a computational modeling approach (2014)

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See detailIn-Situ Nitroxide-Mediated Radical Polymerization (Nmp) Processes: Their Understanding and Optimization
Sciannamea, Valérie; Jérôme, Robert ULg; Detrembleur, Christophe ULg

in Chemical Reviews (2008), 108(3), 1104-26

Detailed reference viewed: 43 (3 ULg)