Literatura académica sobre el tema "Coïncidence temporelle"
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Artículos de revistas sobre el tema "Coïncidence temporelle"
Dolinin, Konstantin A. y Elena Simonato-Kokochkina. "Le réalisme socialiste en linguistique". Cahiers du Centre de Linguistique et des Sciences du Langage, n.º 14 (9 de abril de 2022): 85–100. http://dx.doi.org/10.26034/la.cdclsl.2003.1644.
Texto completoDaget, Ph y S. Reyes. "Sur la variabilite des precipitations dans la basse californie du nord (Mexique)". Geofísica Internacional 28, n.º 4 (1 de octubre de 1989): 693–720. http://dx.doi.org/10.22201/igeof.00167169p.1989.28.4.1318.
Texto completoBocquet-Appel, Jean-Pierre y Lucienne Jacobi. "Diffusion spatiale de la contraception en Grande-Bretagne, à l'origine de la transition". Population Vol. 52, n.º 4 (1 de abril de 1997): 977–1004. http://dx.doi.org/10.3917/popu.p1997.52n4.1004.
Texto completoDemers, Sylvio, Susan Drejza y Thomas Buffin-Bélanger. "Effet de l’asynchronisme des crues sur l’ajustement des profils longitudinaux de tributaires du fleuve Moulouya, Maroc". 23, n.º 4 (20 de diciembre de 2010): 335–47. http://dx.doi.org/10.7202/045096ar.
Texto completoMathieu, Roger‑Lacan. "Vertige temporel et historicité romanesque : sur une page de Patrick Modiano". Fabula-LhT : littérature, histoire, théorie, n.º 23 (9 de enero de 2020). http://dx.doi.org/10.58282/lht.2399.
Texto completoTesis sobre el tema "Coïncidence temporelle"
Ilmane, Nabil. "Effets de la contrainte temporelle sur la coordination posture/mouvement : particularité d'une situation d'anticipation-coïncidence". Electronic Thesis or Diss., Orléans, 2009. http://www.theses.fr/2009ORLE2006.
Texto completoVoluntary movements are generally accompanied by anticipatory postural adjustments (APAs). They are centrally generated as a feedforward mechanism to counteract the mechanical effects of predicted balance perturbations. Previous studies showed that the coordination between posture and movement is modified depending on whether the movement is performed in a reactive temporal pressure (TRS) or in a self-initiated (AI) manner. The aim of this thesis is to examine the coordination of posture and movement in anticipation-coincidence (AC) timing tasks in simple and complex movements, and then to compare this mode to the TRS and AI modes. Three experiments was achieved to verify : (1) whether simple movement coordination modes can be extended to complex movements ; (2) whether the temporal characteristics of the mobile used in the task modifies the coordination in AC condition ; (3) to which extent the motor commands of APAs and the focal movement are coupled in response to the TRS and AC temporal pressures. Results show that: (1) the different strategies of coordination between posture and movement are extended to the complex tasks; (2) the predictable timing of movement execution in the AC condition generates behaviours closer to those observed in AI condition; (3) the differences in the coordination between the reactive (TRS) and the predictive (AC, AI) conditions are related to the difference in the preparatory processes which consists on the dissociation of postural and focal commands in the predictive situations, and the association of this motor commands in the reactive situation. Theoretical implications emerging from these results are discussed
Ilmane, Nabil. "Effets de la contrainte temporelle sur la coordination posture/mouvement : particularité d'une situation d'anticipation-coïncidence". Phd thesis, Université d'Orléans, 2009. http://tel.archives-ouvertes.fr/tel-00456144.
Texto completoVert, P. E. "Etude, développement et validation d'un concept d'architecture électronique sans temps mort pour TEP de haute sensibilité". Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2007. http://tel.archives-ouvertes.fr/tel-00165738.
Texto completoBaaboura, Jassem. "Effets de confinement quantique dans les matériaux de faible dimension dévoilés par des spectroscopies électroniques corrélées dans le temps". Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASP025.
Texto completoA profound understanding of interactions within luminescent materials under excitation is imperative for advancing optoelectronic devices. Materials with small dimensions exhibit unique optoelectronic properties resulting from quantum effects and spatial confinement.Our approach to analyzing the optoelectronic properties of nanomaterials is marked by a versatile methodology, employing various techniques integrated into the scanning transmission electron microscope (STEM). Utilizing an accelerated electron source at 60 keV, our study successfully overcame diffraction limitations. The STEM microscope, with nanometric resolution capabilities in measuring energy absorption through transmitted electron energy loss spectroscopy (EELS), formed the central aspect of our exploration. Enhanced by an integrated spectroscopic system into the microscope, we performed an in-depth analysis of the luminescence spectrum (cathodoluminescence) of nanostructures.The integration of these techniques facilitates the exploration of optoelectronic effects induced by excitons in low-dimensional materials, particularly in monolayer TMD-based heterostructures (WS2 et MoSe2) that were carefully prepared in a cleanroom. Luminescence mappings revealed correlations between the emission intensity of exciton XA and the trion, depending on the spatial displacements of the probe across the sample surface. These observations enabled deductions about the dependence of trion or exciton generation on the deformations of the layers within the heterostructure.Excitation by an electron source induces multiple electronic transitions, presenting a challenge compared to optical excitation. To tackle this challenge, the STEM team at LPS developed an experimental technique, the cathodoluminescence excitation spectroscopy (CLE), to identify the electron responsible for the emission of each photon. This identification, coupled with the magnetic spectrometer providing information on the energy absorbed by the sample, facilitates identifying the type of excitation leading to photon emission. The identification of the electron responsible for photon emission was achieved through temporal coincidence, utilizing a photomultiplier and a temporally resolved electron detector, Timepix3.A thorough investigation of the Timepix3 detector during this thesis unveiled the underlying mechanisms, spanning from the initial impact of the electron on the detector surface to its subsequent detection within the readout layer. This study, incorporating various experimental approaches, significantly contributed to the precise characterization of the detector, ultimately optimizing its temporal resolution.The temporal coincidence technique was applied to other low-dimensional materials, such as AlN nanowires with GaN/AlN quantum wells. This approach provided insights into the lifetime of excitations, uncovering a close dependence on the screening of the electric field within these nanowires. Simulations and experimental results demonstrated notable variations based on the current and spatial excitation position within the nanowire. While these dependencies are distinct, they are closely interlinked, influencing the migration of charges from barriers to wells and thus exerting a significant impact on the lifetime and emission energy of excitons.Finally, an energy-dependent study of electrons coinciding with photons unveiled the emission efficiency for each energy absorption, highlighting specific de-excitation processes leading to exciton generation, resulting in photon emission.These results not only enhance our comprehension of low-dimensional materials but also forge new pathways for the development of optoelectronic devices, particularly LEDs
Mbow, Ndeye Awa. "Conception et intégration en technologie CMOS d'un circuit de lecture et d'identification de coïncidences à résolution temporelle de l'ordre de la nanoseconde destiné à l'imagerie biomédicale". Strasbourg, 2009. https://publication-theses.unistra.fr/restreint/theses_doctorat/2009/MBOW_Ndeye_Awa_2009.pdf.
Texto completoThe sequencing of the human genome and the genome of the mouse has shown that among the 30,000 genes that have human and mouse, only 300 are different. This remarkable similarity makes possible to study the development of diseases such as cardiovascular disease, cancer, neurodegenerative diseases, namely Alzheimer's or Parkinson's disease on mice. Thus, mouse models representing the human diseases have been multiplied. Molecular imaging which couples both anatomical and functional information has become an indispensable tool in biomedical research. One of the main researches of ImaBio's group of the Hubert Curien Pluridisciplinary Institute (IPHC) is developing a preclinical multimodal imaging system named AMISSA (A Multimodality Imaging System for Small Animal) and dedicated to small animal. This multimodal technology research is an innovative solution to biology issues. For the PET (Positron Emission tomography) modalities that should be integrated in the platform AMISSA, the number of channels (6144) of the proposed system and the size of the object imaged that will be fit on a diameter of 6 cm require an integrated electronic readout. The PET imaging system is designed to achieve a spatial resolution of 1 mm3 with detection efficiency better than 15%. Due to the geometry considered for the detector, its readout electronic should be able to achieve a large dynamic range from a few femto Coulombs to 104 pC for the measure of charges and an accurate measurement of the arrival time of signal with a precision better than 1 ns to make a narrow time coincidence window in order to reduce random coincidences. My contribution in this project is to participate in the development of this dedicated electronic module detection of the micro PET and also to characterize it. An ASIC prototype of 10 channels named IMOTEPA for the charge measurement and another of 16 channels named IMOTEPD dedicated to time stamp the photons have been developed in AMS CMOS 0. 35 µm. These two chips allowed us to validate separately the analogue part and the digital one of the photodetector's readout electronic. The final objective is to reach a single ASIC performing simultaneously both of these functions. Measured Integral Non-Linearity (INL) less than 3%, a crosstalk around 0. 2% for IMOTEPA and also jitter of about 120 ps RMS and Differential Non-Linearity of about ±0. 35 LSB for IMOTEPD, meet the specifications. These measures allow integrating a 64 channels prototype named IMOTEPAD which is under development in the laboratory. This manuscript provides a description of the ASICs IMOTEPA and IMOTEPD and presents the measurement results associated to them