Готові списки джерел за темами / Capteur MOx

Добірка наукової літератури з теми "Capteur MOx"

Автор: Grafiati
Опубліковано: 21 червня 2022

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Зміст

  1. Статті в журналах
  2. Дисертації
  3. Книги
  4. Частини книг
  5. Тези доповідей конференцій

Статті в журналах з теми "Capteur MOx":

1

Arenas, C., R. Bratton, F. Reventos, and K. Ivanov. "Uncertainty Analysis of Light Water Reactor Fuel Lattices." Science and Technology of Nuclear Installations 2013 (2013): 1–10. http://dx.doi.org/10.1155/2013/437409.

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The study explored the calculation of uncertainty based on available cross-section covariance data and computational tool on fuel lattice levels, which included pin cell and the fuel assembly models. Uncertainty variations due to temperatures changes and different fuel compositions are the main focus of this analysis. Selected assemblies and unit pin cells were analyzed according to the OECD LWR UAM benchmark specifications. Criticality and uncertainty analysis were performed using TSUNAMI-2D sequence in SCALE 6.1. It was found that uncertainties increase with increasing temperature, whilekinfdecreases. This increase in the uncertainty is due to the increase in sensitivity of the largest contributing reaction of uncertainty, namely, the neutron capture reaction238U(n,γ) due to the Doppler broadening. In addition, three types (UOX, MOX, and UOX-Gd2O3) of fuel material compositions were analyzed. A remarkable increase in uncertainty inkinfwas observed for the case of MOX fuel. The increase in uncertainty ofkinfin MOX fuel was nearly twice the corresponding value in UOX fuel. The neutron-nuclide reaction of238U, mainly inelastic scattering (n,n′), contributed the most to the uncertainties in the MOX fuel, shifting the neutron spectrum to higher energy compared to the UOX fuel.
2

Jennings, Gareth K., Caroline M. Ritchie, Lisa S. Shock, Charles E. Lyons, and John C. Hackett. "N-Heterocyclic Carbene Capture by Cytochrome P450 3A4." Molecular Pharmacology 90, no. 1 (April 28, 2016): 42–51. http://dx.doi.org/10.1124/mol.116.103721.

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3

Ma, Rui, Pan Hu, Li Xu, Jinxu Fan, Yutang Wang, Muqian Niu, and Shenming Tao. "Nanostructured polyethylenimine decorated palygorskite for reversible CO2 capture." Materials Express 7, no. 4 (August 1, 2017): 253–60. http://dx.doi.org/10.1166/mex.2017.1374.

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4

Cheng, D. "Symbol rate and signal capture in LMDS systems." Microwave and Optical Technology Letters 40, no. 5 (January 12, 2004): 418–20. http://dx.doi.org/10.1002/mop.11397.

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5

Xu, Yuan, and Guangjian Liu. "Carbon capture and storage for Hong Kong's fuel mix." Utilities Policy 36 (October 2015): 43–45. http://dx.doi.org/10.1016/j.jup.2015.09.001.

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6

Ouisloumen, Mohamed. "ANALYSES OF INTEGRAL AND MOX CRITICAL EXPERIMENTS TO QUALIFY PARAGON2 PREDICTIONS*." EPJ Web of Conferences 247 (2021): 02012. http://dx.doi.org/10.1051/epjconf/202124702012.

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This paper presents the qualification of the newly developed Westinghouse lattice physics code PARAGON2. PARAGON2 uses high energy resolution in the solution of the transport equation. The objective of this paper is to demonstrate that PARAGON2 accurately predicts the integral and critical experiments. The integral experiments are used to assess PARAGON2 predictions of fine neutronics parameters such as: resonance integrals and radial profiles of reactions rates, isotopics, and burnup for depleted pellets. The integral experiments considered are: the Hellstrand’s, TRX, and the PIE experiments. For critical experiments, this paper will focus only on VENUS-2 MOX critical experiment. The results obtained for the integral experiments clearly show the good predictions of PARAGON2 with the resonance scattering model which are close to measurement. The PARAGON2 predicted capture reaction rates, temperature coefficients, burnup and isotopic profiles match the measured values both in shape and magnitude. VENUS-2 reactivity prediction is in excellent agreement with the critical measurement value. Also, the standard deviations of measured minus predicted pin-wise fission reaction rates are very good (i.e. ≤ 2%) for both individual assemblies and the whole core.
7

Deslandes, J. "P034: Réanimation cardio-pulmonaire sans période de “no-flow”: un nouveau dispositif." CJEM 18, S1 (May 2016): S89—S90. http://dx.doi.org/10.1017/cem.2016.210.

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Introduction: La b-card (Boussignac Cardiac Arrest Resuscitation Device) est un dispositif permettant d'assurer une oxygénation passive continue lors des manoeuvres de compressions/décompressions réalisées dans le cadre d'un arrêt cardiaque. Ce dispositif fonctionne par création d'une valve virtuelle induite par l'accélération d'un débit d'oxygéne via des micro-canalicules. Cette valve est censée s'opposer aux flux de gaz entrant et sortant de la cage thoracique lors des compressions/décompressions. Elle permettrait d'obtenir une pression positive intra thoracique lors des compressions, et une pression intra thoracique négative lors des décompressions. L'expérimentation conduite a pour but de mesurer la pression statique créée dans le dispositif par le débit d'oxygène, ainsi que les valeurs de pressions et de flux générés en intra thoracique. Methods: La b-card est almimentée par un débit d'oxygène de 15 L/min, et connectée via différentes interfaces à un poumon test pourvu de capteurs:-Capteur de pression des voies aériennes (PAW en cm H2O).-Capteur de débit au niveau des voies aériennes.-Capteur de pression “intra thoracique” (PIT max et min; et Pression Expiratoire Intra Thoracique).Les mesures sonrt effectuées sans b-card, puis avec b-card connectée à un masque facial, un masque laryngé, une sonde trachéale.Results: La pression “statique”, celle de la valve virtuelle, mesurée au niveau de la b-card reste stable à 6 cm d'H2O, sous un débit de 15 L/min. Elle permet une résistance à hauteur de cette valeur aux flux de gaz entrant ou sortant du thorax expérimental en fonction des compressions/décompressions. Les pressions intra thoraciques positives mesurées lors des compressions restent équivalentes autour de 25 à 30 cm H2O, et ce quelle que soit l'interface utilisée. Les pressions intra thoraciques négatives mesurées lors des décompressions restent équivalentes autour de 10 à 15 cm d'H2O, et ce quelle que soit l'interface utilisée. Conclusion: Les pressions intra thoraciques obtenues en associant une oxygénation passive par la b-card à des compressions/décompressions continues permettent d'assurer une ventilation efficace et synchrone. Les pressions mesurées au niveau du dispositif sont constamment inférieures à la pression d'ouverture moyenne oesophagienne, ce qui éviterait toute insufflation gastrique.
8

Aggoun, Lakhdar, and Robert J. Elliott. "Recursive Estimation in Capture-Recapture Methods." Sultan Qaboos University Journal for Science [SQUJS] 3 (December 1, 1998): 67. http://dx.doi.org/10.24200/squjs.vol3iss0pp67-75.

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An important problem in statistical ecology is how to determine the size of an animal population. The best known technique is the capture-recapture technique. A random sample of individuals is captured, tagged in some way and released back into the population. After allowing time for the marked and unmarked individuals to mix sufficiently, a second random sample is taken and the marked ones are observed. Using measure change techniques, we estimate recursively conditional distributions of various quantities.
9

Mauntel, Timothy C., Kenneth L. Cameron, Brian Pietrosimone, Stephen W. Marshall, Anthony C. Hackney, and Darin A. Padua. "Validation of a Commercially Available Markerless Motion-Capture System for Trunk and Lower Extremity Kinematics During a Jump-Landing Assessment." Journal of Athletic Training 56, no. 2 (January 22, 2021): 177–90. http://dx.doi.org/10.4085/1062-6050-0023.20.

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Context Field-based, portable motion-capture systems can be used to help identify individuals at greater risk of lower extremity injury. Microsoft Kinect-based markerless motion-capture systems meet these requirements; however, until recently, these systems were generally not automated, required substantial data postprocessing, and were not commercially available. Objective To validate the kinematic measures of a commercially available markerless motion-capture system. Design Descriptive laboratory study. Setting Laboratory. Patients or Other Participants A total of 20 healthy, physically active university students (10 males, 10 females; age = 20.50 ± 2.78 years, height = 170.36 ± 9.82 cm, mass = 68.38 ± 10.07 kg, body mass index = 23.50 ± 2.40 kg/m2). Intervention(s) Participants completed 5 jump-landing trials. Kinematic data were simultaneously recorded using Kinect-based markerless and stereophotogrammetric motion-capture systems. Main Outcome Measure(s) Sagittal- and frontal-plane trunk, hip-joint, and knee-joint angles were identified at initial ground contact of the jump landing (IC), for the maximum joint angle during the landing phase of the initial landing (MAX), and for the joint-angle displacement from IC to MAX (DSP). Outliers were removed, and data were averaged across trials. We used intraclass correlation coefficients (ICCs [2,1]) to assess intersystem reliability and the paired-samples t test to examine mean differences (α ≤ .05). Results Agreement existed between the systems (ICC range = −1.52 to 0.96; ICC average = 0.58), with 75.00% (n = 24/32) of the measures being validated (P ≤ .05). Agreement was better for sagittal- (ICC average = 0.84) than frontal- (ICC average = 0.35) plane measures. Agreement was best for MAX (ICC average = 0.77) compared with IC (ICC average = 0.56) and DSP (ICC average = 0.41) measures. Pairwise comparisons identified differences for 18.75% (6/32) of the measures. Fewer differences were observed for sagittal- (0.00%; 0/15) than for frontal- (35.29%; 6/17) plane measures. Between-systems differences were equivalent for MAX (18.18%; 2/11), DSP (18.18%; 2/11), and IC (20.00%; 2/10) measures. The markerless system underestimated sagittal-plane measures (86.67%; 13/15) and overestimated frontal-plane measures (76.47%; 13/17). No trends were observed for overestimating or underestimating IC, MAX, or DSP measures. Conclusions Moderate agreement existed between markerless and stereophotogrammetric motion-capture systems. Better agreement existed for larger (eg, sagittal-plane, MAX) than for smaller (eg, frontal-plane, IC) joint angles. The DSP angles had the worst agreement. Markerless motion-capture systems may help clinicians identify individuals at greater risk of lower extremity injury.
10

Hammer, Christof, Johannes Warmer, Stephan Maurer, Peter Kaul, Ronald Thoelen, and Norbert Jung. "A Compact 16 Channel Embedded System with High Dynamic Range Readout and Heater Management for Semiconducting Metal Oxide Gas Sensors." Electronics 9, no. 11 (November 5, 2020): 1855. http://dx.doi.org/10.3390/electronics9111855.

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The simultaneous operation of multiple different semiconducting metal oxide (MOX) gas sensors is demanding for the readout circuitry. The challenge results from the strongly varying signal intensities of the various sensor types to the target gas. While some sensors change their resistance only slightly, other types can react with a resistive change over a range of several decades. Therefore, a suitable readout circuit has to be able to capture all these resistive variations, requiring it to have a very large dynamic range. This work presents a compact embedded system that provides a full, high range input interface (readout and heater management) for MOX sensor operation. The system is modular and consists of a central mainboard that holds up to eight sensor-modules, each capable of supporting up to two MOX sensors, therefore supporting a total maximum of 16 different sensors. Its wide input range is archived using the resistance-to-time measurement method. The system is solely built with commercial off-the-shelf components and tested over a range spanning from 100 Ω to 5 GΩ (9.7 decades) with an average measurement error of 0.27% and a maximum error of 2.11%. The heater management uses a well-tested power-circuit and supports multiple modes of operation, hence enabling the system to be used in highly automated measurement applications. The experimental part of this work presents the results of an exemplary screening of 16 sensors, which was performed to evaluate the system’s performance.
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Статті в журналах Дисертації

Дисертації з теми "Capteur MOx":

1

Madrolle, Stéphanie. "Méthodes de traitement du signal pour l'analyse quantitative de gaz respiratoires à partir d’un unique capteur MOX." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAT065/document.

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Prélevés de manière non invasive, les gaz respiratoires sont constitués de nombreux composés organiques volatils (VOCs) dont la quantité dépend de l’état de santé du sujet. L’analyse quantitative de l’air expiré présente alors un fort intérêt médical, que ce soit pour le diagnostic ou le suivi de traitement. Dans le cadre de ma thèse, nous proposons d’étudier un dispositif d’analyse des gaz respiratoires, et notamment de ces VOCs. Cette thèse multidisciplinaire aborde différents aspects, tels que le choix des capteurs, du matériel et des modes d’acquisition, l’acquisition des données à l’aide d’un banc gaz, et ensuite le traitement des signaux obtenus de manière à quantifier un mélange de gaz. Nous étudions la réponse d’un capteur à oxyde métallique (MOX) à des mélanges de deux gaz (acétone et éthanol) dilués dans de l’air synthétique (oxygène et azote). Ensuite, nous utilisons des méthodes de séparation de sources de manière à distinguer les deux gaz, et déterminer leur concentration. Pour donner des résultats satisfaisants, ces méthodes nécessitent d’utiliser plusieurs capteurs dont on connait la forme mathématique du modèle décrivant l’interaction du mélange avec le capteur, et qui présentent une diversité suffisante dans les mesures d’étalonnage pour estimer les coefficients de ce modèle. Dans cette thèse, nous montrons que les capteurs MOX peuvent être décrits par un modèle de mélange linéaire quadratique, et qu’un mode d’acquisition fonctionnant en double température permet de générer deux capteurs virtuels à partir d’un unique capteur physique. Pour quantifier précisément les composants du mélange à partir des mesures sur ces capteurs (virtuels), nous avons conçu des méthodes de séparation de sources, supervisées et non supervisées appliquées à ce modèle non-linéaire : l’analyse en composantes indépendantes, des méthodes de moindres carrés (algorithme de Levenberg-Marquardt), et une méthode bayésienne ont été étudiées. Les résultats expérimentaux montrent que ces méthodes permettent d’estimer les concentrations de VOCs contenus dans un mélange de gaz, de façon précise, en ne nécessitant que très peu de points de calibration
Non-invasively taken, exhaled breath contains many volatile organic compounds (VOCs) whose amount depends on the health of the subject. Quantitative analysis of exhaled air is of great medical interest, whether for diagnosis or for a treatment follow-up. As part of my thesis, we propose to study a device to analyze exhaled breath, including these VOCs. This multidisciplinary thesis addresses various aspects, such as the choice of sensors, materials and acquisition modes, the acquisition of data using a gas bench, and then the processing of the signals obtained to quantify a gas mixture. We study the response of a metal oxide sensor (MOX) to mixtures of two gases (acetone and ethanol) diluted in synthetic air (oxygen and nitrogen). Then, we use source separation methods in order to distinguish the two gases, and to determine their concentration. To give satisfactory results, these methods require first to use several sensors for which we know the mathematical model describing the interaction of the mixture with the sensor, and which present a sufficient diversity in the calibration measurements to estimate the model coefficients. In this thesis, we show that MOX sensors can be described by a linear-quadratic mixing model, and that a dual temperature acquisition mode can generate two virtual sensors from a single physical sensor. To quantify the components of the mixture from measurements on these (virtual) sensors, we have develop supervised and unsupervised source separation methods, applied to this nonlinear model: independent component analysis, least squares methods (Levenberg Marquardt algorithm), and a Bayesian method were studied. The experimental results show that these methods make it possible to estimate the VOC concentrations of a gas mixture, accurately, while requiring only a few calibration points
2

Bertero, Christophe. "Perception de l'environnement urbain à l'aide d'une flotte de capteurs sur des vélos : application à la pollution de l'air." Thesis, Toulouse 3, 2020. http://www.theses.fr/2020TOU30321.

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Cette thèse s'inscrit dans le contexte des « villes intelligentes », où le traitement de l'information améliore la qualité de vie. Elle étudie la perception de l'environnement, et plus particulièrement la perception de la pollution de l'air en ville, à l'aide de capteurs sur vélos. Le premier chapitre introduit les défis techniques et scientifiques, en terme de collecte de l'information et de modélisation, appliqués au domaine de l'aérologie. Le deuxième chapitre s'intéresse à la conception d'une flotte d'instruments mobiles de mesure de la pollution de l'air. Nous caractérisons la forme du réseau de capteurs nécessaire à la modélisation, d'une part à l'aide de la littérature et d'autre part via une simulation. Le troisième chapitre expose notre réalisation d'un tel instrument. Nous l'avons articulé autour d'un micro-capteur à métal-oxyde semi-conducteur (capteur MOx) de NO2 et CO, le MiCS-4514, et évalué ses performances en milieux contrôlés. Le quatrième chapitre présente les deux déploiements de cet instrument dans la ville de Toulouse, d'abord auprès d'une association de location de vélos puis avec des « vélo-taffeurs » de notre laboratoire, et le jeu de données collecté. Enfin, nous estimons les niveaux de pollution en NO2 et en CO dans la ville
This thesis takes place in the context of "smart cities", where the information processing improves the quality of life. It studies the perception of the environment and especially the perception of air pollution in the city using sensors on bikes. The first chapter introduces the technical and scientific challenges in terms of information collection and modeling applied to aerology. The second chapter presents the design of a fleet of mobile instruments for measuring air pollution. We characterize the shape of the sensor network needed for modeling, on the one hand using the literature and on the other hand using a simulation. The third chapter deals with the development of such an instrument. We have built our instrument around a semiconductor metal oxide micro-sensor (MOx sensor) of NO2 and CO, the MiCS-4514, and evaluated its performance in controlled environments. The fourth chapter presents the two deployments of this instrument in the city of Toulouse in France, first with a bicycle rental association and then with bikers from our laboratory, and the dataset collected. Finally, we estimate the pollution levels in NO2 and CO in the city
3

Deveaux, Michael. "Development of fast and radiation hard Monolithic Active Pixel Sensors (MAPS) optimized for open charm meson detection with the CBM experiment." Université Louis Pasteur (Strasbourg) (1971-2008), 2008. https://publication-theses.unistra.fr/public/theses_doctorat/2008/DEVEAUX_Michael_2008.pdf.

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L'expérience CBM (Compressed Baryonic Matter) a pour objet d'explorer le diagramme des phases de la matière nucléaire dans la région des hautes densités baryoniques au moyen de collisions d'ions lourds à des énergies de faisceau comprises entre 10 et 40 AGeV. Dans le but d'étudier le charme ouvert (D0 et D+) avec CBM, un détecteur de vertex (MVD) présentant à la fois un faible budget de matière, une excellente résolution spatiale et une bonne tolérance aux radiations est requis. Cette étude vise à déterminer dans quelle mesure un MVD constitué de capteurs CMOS (MAPS) peut garantir de telles performances. Dans cette optique le cahier des charges du MVD a été établi. Les mécanismes de dégradation par irradiation des MAPS ont été étudiés pour en améliorer la tolérance d'un ordre de grandeur. Les résultats de ces études ont permis de réaliser des simulations avec GEANT, et de démontrer la faisabilité du programme de physique portant sur le charme ouvert avec un tel concept de détecteur
The Compressed Baryonic Matter experiment (CBM) will investigate heavy ion collisions at beam energies between 10 and 40 AGeV in order to explore the nuclear matter phase diagram in the high baryon density region. For a first time, open charm mesons (D0 and D±) will be used as probe for the nuclear fireball. Reconstructing them requires a very thin (few 0. 1 % X0 per layer) micro vertex detector (MVD) with pixel sensors featuring excellent spatial resolution (few µm) and substantial radiation hardness. This work studies whether (and how) an MVD based on the novel Monolithic Active Pixel Sensors (MAPS) can the reach the performance needed. For this purpose, the precise requirements on the MVD in terms of material budget, cooling, time resolution and radiation hardness were estimated. Extensive R&D studies on MAPS allowed establishing their performances in particular in the field of radiation tolerance and to improve this tolerance by one order of magnitude. The information obtained was used as input for a GEANT simulation which demonstrated the feasibility of open charm physics with the proposed detector concept
4

Essa, Zahi. "Physical modelling of impurity diffusion and clustering phenomena in CMOS based image sensors." Phd thesis, Université Paul Sabatier - Toulouse III, 2013. http://tel.archives-ouvertes.fr/tel-01020497.

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L'essor de l'industrie micro-électronique au cours des dernières années n'aurait pas été possible sans les innovations en termes de procédés de fabrication de la technologie CMOS (Complementary Metal Oxide Semiconductor) induisant une amélioration continue des performances des composants. Ces innovations doivent relever les défis technologiques inhérents à la fois à la miniaturisation ainsi qu'à la diversification croissante des composants. En réponse à ces défis, des approches de modélisation de type TCAD (Technology Computer Aided Design), permettent de réduire nettement le temps et le coût de développement de ces nouvelles technologies. Dans ce cadre, cette thèse s'intéresse à l'élaboration de modèles TCAD permettant la prise en compte des différents mécanismes physiques ayant lieu lors de l'utilisation des procédés de fabrication avancés. Dans une première partie, les mécanismes de diffusion et d'activation pour des fortes doses d'implantation ont pu être étudiés notamment dans le cas de l'implantation plasma, technique très prometteuse pour des applications de dopage conforme dans les capteurs d'image ou transistors TriGates. La mise en évidence et la modélisation d'agrégats de bore-interstitiel de grande taille ont ainsi pu être menées pour des conditions de fort dopage. Dans une deuxième partie, la diffusion et le transfert d'espèces chimiques entre différents matériaux ont été évalués. Ainsi, la perte de dose de bore dans le silicium dans les empilements " espaceurs " ainsi que la diffusion de bore correspondante dans l'oxyde ont été étudiés. De même, l'évaluation de la diffusion du lanthane pendant un recuit thermique dans les empilements de grille avec oxyde à forte permittivité diélectrique (high-k) a pu être menée. En dernière partie, l'impact de ces différents mécanismes sur le comportement électrique des composants CMOS a ainsi pu être évalué, et une amélioration de la prédictibilité des modèles TCAD a été obtenue sur les dispositifs transistors MOS ainsi que les capteurs d'image CMOS FSI (Front Side Illumination) et BSI (Back Side Illumination).
5

Ahmed, Nayera. "MOS Capacitor Deep Trench Isolation (CDTI) for CMOS Image Sensors." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10048.

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The development of high-resolution image sensors with smaller pixel sizes is facing critical issues, such as optical and electrical crosstalk, dark current and dynamic range. As part of this thesis, we addressed this issue by proposing the integration of MOS capacitor deep trench isolation (CDTI). Our studies focus on the validation of the proposal with the aim of improving performances compared to the state of the art. First, we modeled interface states Si/SiO2 and the charge in the oxide. By TCAD simulations, using our model, we were able to evaluate the main characteristics of a pixel. We have validated this approach by comparison between simulations and measurements on a 1.4μm DTI pixel. Then, we developed manufacturing processes for integrating CDTI and defined the associated key parameters. With TCAD simulations of process type, we could achieve the desired performances while keeping a short development cycle and cost. Finally, we have designed, manufactured and tested a 1.4μm CDTI pixel ; we got a very low dark current: ~ 1 aA/pixel at 60°C, which is 6 times less than the DTI pixel, and doubled saturation charge up to 12000e-. Other performances are comparable between the two types of pixels. We have demonstrated the validity of the proposed CDTI solution CDTI
6

Lavaure, de Graffanaud Alain. "Conception de blocs analogiques et mixtes dédiés à un capteur intégré de rayonnement." Limoges, 2000. http://www.theses.fr/2000LIMO4044.

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7

Heini, Sébastien Hu Yann Winter Marc. "Conception et intégration d'un capteur à pixels actifs monolithiques et de son circuit de lecture en technologie CMOS submicronique pour les détecteurs de position du futur." Strasbourg : Université de Strasbourg, 2009. http://eprints-scd-ulp.u-strasbg.fr:8080/1128/01/HEINI_Sebastien_2009_restrict.pdf.

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8

Hirigoyen, Flavien. "Optimisation de la collection des photons pour des capteurs d'images en technologie CMOS." Aix-Marseille 3, 2005. http://www.theses.fr/2005AIX30076.

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L'objectif de cette thèse est de mettre en place une nouvelle méthodologie afin d'optimiser la collection de photons pour des capteurs d'images CMOS, et d'atteindre de bonnes performances optiques. La méthodologie consiste à créer un modèle tridimensionnel fidèle du pixel, à partir de son dessin réalisé depuis les outils de conception assistée par ordinateur, insérable dans un logiciel de tracé de rayon. Ce modèle prend en compte la géométrie exacte ainsi que les propriétés optiques des matériaux composants chacun de ses éléments. Une source spécifique a également été développée pour simuler l'éclairement du pixel en conditions réelles (derrière une lentille objectif). Après chaque tracé de rayons, les résultats de simulations sont ensuite transférés dans un autre logiciel pour le post-traitement. Ce dernier consiste à approximer le taux de collection de porteurs de charges par des surfaces photosensibles de référence pondérées, dont les poids sont déterminés par ajustement des résultats de simulation de réponse angulaire du pixel aux mesures, selon les moindres carrés. A partir de ces surfaces et de leurs poids les distributions spatiales de l'éclairement à l'intérieur du substrat sont comptabilisées pour évaluer le signal de sortie du capteur. Ces résultats de simulations sont ensuite comparés aux mesures expérimentales, afin de calibrer et de valider le simulateur, et de quantifier les effets du vignettage sur les performances optiques du capteur. Ayant démontré sa pertinence, nous avons utilisé cette méthodologie pour prédire les performances optiques d'architectures avancées, et aider les ingénieurs de conception et de procédé à optimiser les dessins de pixels et les techniques de fabrication
The objective of the thesis is to put in place a new methodology for photon collection optimization for CMOS image sensors in order to achieve good optical performances. The methodology consists in starting from the pixel layout description from standard microelectronic CAD software. From this, we generate a three-dimensional model on an optical ray tracing software. This optical model aims to be as realistic as possible taking into account the geometrical shape of all the components of the pixel and the optical properties of the materials. A specific ray source has also been developed to simulate the pixel illumination in real conditions (behind an objective lens). After the optical simulation itself, the results are transferred to another software for more convenient post-processing where we use as photosensitive area a weighted surface determined from the fit of angular response simulation results to the measurements, according to least square criterion. Using this surface we count the ray density inside the substrate to evaluate the simulated output signal of the sensor. These simulation results are then compared to the corresponding experimental measurements and validated, demonstrating the relevance of our optical simulation process, and permitting to quantify the vignetting effects of the sensors on optical performances. We reused this simulation methodology to predict the optical performances of more advanced architectures, and to help designers and process engineers to optimize the pixels and the fabrication process
9

Gensolen, Fabrice. "Architecture et conception de rétines silicium CMOS : intégration de la mesure du mouvement global dans un imageur." Montpellier 2, 2006. http://www.theses.fr/2006MON20182.

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10

MATOU, Karine. "Capteur d'image logarithmique avec compensation "on-chip" du bruit spatial fixe." Phd thesis, Université Paris Sud - Paris XI, 2003. http://tel.archives-ouvertes.fr/tel-00010586.

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Cette thèse s'articule autour du concept "système de vision à base de rétine électronique". Le travail de cette thèse porte plus particulièrement sur la conception et la réalisation d'un capteur d'image CMOS logarithmique avec une fonction de compensation on-chip du BSF (Bruit Spatial Fixe). Les expériences récentes montrent qu'un capteur d'image ayant une réponse logarithmique, similaire à celle de l'œil humain, est très adapté pour des applications de vision. Cette réponse logarithmique donne non seulement un signal image directement proportionnel au contraste optique mais aussi une plage dynamique de fonctionnement très étendu liée à la compression opérée par la fonction logarithmique.
L'un des principaux problèmes dans un capteur d'image logarithmique, est le BSF. Ce bruit réduit la qualité de l'image et limite l'utilisation de ce type de capteur dans des applications de vision. Dans cette thèse, nous avons exploré une structure radicalement différente de celle utilisée par beaucoup d'autres chercheurs : utilisation d'une photodiode en mode photovoltaïque plutôt qu'en mode photoconducteur. Cette photodiode combinée avec un transistor d'initialisation permet de générer un signal de référence noir dans n'importe qu'elle condition lumineuse. Cette nouvelle approche ouvre la voie à une compensation on-chip du BSF simple et efficace. Ce photorécepteur a été intensément étudié dans cette thèse. Un circuit prototype a été conçu et fabriqué dans une technologie CMOS standard 0,8um via le service CMP français. Il a été entièrement testé et caractérisé. Le résultat expérimental a non seulement validé les prédictions théoriques mais aussi a démontré une bonne qualité de l'image et aussi une bonne sensibilité en condition de faible illumination. Certains problèmes de conception et phénomènes électriques ont été également étudiés dans cette thèse. Des solutions proposées à ces problèmes peuvent être intéressantes pour les concepteurs et les chercheurs dans ce domaine. A la fin, quelques questions en suspens sur le capteur d'image logarithmique ont été soulignées et des directions de recherche correspondantes ont été précisées.
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Книги з теми "Capteur MOx":

1

Smith, Bobbi. Capture mon coeur. Paris: Ed. J'ai lu, 1995.

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2

Smith, Bobbi. Capture mon cœur. J'ai lu, 1999.

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3

Captius i esclaus a l'antiguitat i al mon modern: Actes del XIX Col·loqui Internacional del GIREA (Diaphora). Jovene editore, 1996.

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4

McLaughlin, Colleen, and Alan Ruby, eds. Implementing Educational Reform. Cambridge University Press, 2021. http://dx.doi.org/10.1017/9781108864800.

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There is constant pressure on governments and policy makers to raise the standard of education, and to develop appropriate curriculum and pedagogies for students. It is no easy task. This book presents eight specific case studies of education reform implementation which capture how the design and implementation choices of policy makers are shaped by national and historical contexts. They offer real examples of the choices and constraints faced by policymakers and practitioners. The cases are a mix of nationally and locally mandated reforms with five examples from nations where the state initiated and guided reforms. The concluding synthesis chapter highlights commonalities and differences across the cases and disparate responses to shared concerns. Providing a breadth of real-world research, it will assist policy makers, practitioners and other stakeholders interested in system change.
5

Zürn, Michael. Reflexive Authorities. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198819974.003.0003.

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In this chapter, authority is developed as key concept for analyzing the global governance system. Max Weber’s foundational treatment is used to capture the paradox involved in the notion of “voluntary subordination.” Building on this foundation, the concept of reflexive authority is elaborated in contrast to two other concepts that have prevailed in international relations so far. The argument is laid out against the background of the global governance context, one in which the authority holders are in many respects weaker than most state actors. Two types of reflexive authority are identified: epistemic and political authority. Finally, the interplay between different authorities in global governance is analyzed to identify the major features of the global governance system. It is—to put it in the shortest possible form—a system of only loosely coupled spheres of authorities that is not coordinated by a meta-authority and lacks a proper separation of powers.
6

Cook, Peter J. Clean Energy, Climate and Carbon. CSIRO Publishing, 2012. http://dx.doi.org/10.1071/9780643106826.

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With the general reader in mind, Clean Energy, Climate and Carbon outlines the global challenge of decreasing greenhouse gas emissions. It covers the changing concentration of atmospheric carbon dioxide through time and its causes, before considering the promise and the limitations of a wide range of energy technologies for decreasing carbon dioxide emissions. Despite the need to decrease carbon dioxide, the fact is that the global use of fossil fuels is increasing and is likely to continue to do so for some decades to come. With this in mind, the book considers in detail, what for many people is the unfamiliar clean energy technology of carbon capture and storage (CCS). How can we capture carbon dioxide from flue gases? How do we transport it? How do we store it in suitable rocks? What are suitable rocks and where do we find them? How do we know the carbon dioxide will remain trapped once it is injected underground? What does CCS cost and how do those costs compare with other technology options? The book also explores the political environment in which the discussion on clean energy technology options is occurring. What will a price on carbon do for technology uptake and what are the prospects of cutting our emissions by 2020 and of making even deeper cuts by 2050? What will the technology mix look like by that time? For people who are concerned about climate change, or who want to learn more about clean energy technologies, including CCS, this is the definitive view of the opportunities and the challenges we face in decreasing emissions despite a seemingly inexorable global increase in energy demand.
7

Publishing, Theartwithlove. Mom, I Want to Hear Your Story: A Mother's Guided Journal / a Wonderful Way to Capture Your Moms Life Experiences / Perfect Keepsake Gift Idea for New Moms to Tell Their Stories. Independently Published, 2020.

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8

Handelman, Matthew. The Mathematical Imagination. Fordham University Press, 2019. http://dx.doi.org/10.5422/fordham/9780823283835.001.0001.

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The Mathematical Imagination is an archaeology of the undeveloped potential of mathematics for critical theory. As Max Horkheimer and Theodor W. Adorno first conceived of the critical project in the 1930s, critical theory steadfastly opposed the mathematization of thought. Mathematics flattened thought into a dangerous positivism that led reason to the barbarism of the Second World War. The Mathematical Imagination challenges this narrative and argues that it has obscured how mathematics provided three lesser-known German-Jewish thinkers—Gershom Scholem, Franz Rosenzweig, and Siegfried Kracauer—with metaphors to negotiate the crises of modernity during the Weimar Republic. Their theories of poetry, messianism, and cultural critique borrowed ideas from the philosophy of mathematics, infinitesimal calculus, and geometry in order to refashion cultural and aesthetic discourse. Drawn to the austerity and muteness of mathematics, these friends and forerunners of the Frankfurt School found in mathematical approaches to negativity strategies to capture the marginalized experiences and perspectives of Jews in Germany. This vocabulary, in which theory could be both mathematical and critical, is missing in the intellectual history of critical theory—from the work of second-generation critical theorists such as Jürgen Habermas to contemporary critiques of technology. Building on the work of Martin Jay and Susan Buck-Morss, The Mathematical Imagination shows how Scholem, Rosenzweig, and Kracauer’s engagement with mathematics uncovers a more capacious vision of the critical project, one with tools that can help us confront and intervene in our digital, and increasingly mathematical, present.
9

Pride, Rainbow. Parade @ Home: Capture Your Thoughts and Memories from Virtual Venue Pride Parades and Parties in This Rainbow Note Book / Journal, 6 X 9 , 108 Pages , Gay Pride Gift for Boy Girl Teen Sister Brother Dad Mom. Independently Published, 2020.

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10

books, Alan. Mom, I Want to Hear Your Story: A Mother's Guided Journal to Share Her Life and Her Love, Perfect Keepsake Gift Idea for New Moms to Tell Their Stories. a Wonderful Way to Capture Your Moms Life Experiences. Independently Published, 2020.

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Частини книг з теми "Capteur MOx":

1

Puthiaraj, Pillaiyar, Yu-Ri Lee, Seenu Ravi, Siqian Zhang, and Wha-Seung Ahn. "CHAPTER 3. Metal–Organic Framework (MOF)-based CO2 Adsorbents." In Post-combustion Carbon Dioxide Capture Materials, 153–205. Cambridge: Royal Society of Chemistry, 2018. http://dx.doi.org/10.1039/9781788013352-00153.

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2

Crona, Joakim, Peter StÃ¥lberg, Per Hellman, and Peyman Björklund. "Comprehensive genetic screening of pheochromocytoma and paraganglioma through targeted capture and next generation sequencing." In The Endocrine Society's 95th Annual Meeting and Expo, June 15–18, 2013 - San Francisco, MON—42—MON—42. 2055 L Street NW, Suite 600, Washington, DC 20036: The Endocrine Society, 2013. http://dx.doi.org/10.1210/endo-meetings.2013.ahpaa.11.mon-42.

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3

Dahlke, Walter E., and Sanjay Jain. "Mos Tunneling Rate and Interface State Capture Cross-Section." In The Physics and Chemistry of SiO2 and the Si-SiO2 Interface, 373–80. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4899-0774-5_41.

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4

Tyagi, Payal, Mohit Saroha, and Rajender Singh Malik. "MOF: A Heterogeneous Platform for CO2 Capture and Catalysis." In ACS Symposium Series, 315–54. Washington, DC: American Chemical Society, 2021. http://dx.doi.org/10.1021/bk-2021-1393.ch013.

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5

Poulain, M., M. Poulain, H. Messabeb, F. Contamine, P. Cézac, J. P. Serin, J. C. Dupin, and H. Martinez. "Experimental Measurement of CO2 Solubility in a 1 mol/kgw CaCl2 Solution at Temperature from 323.15 to 423.15 K and Pressure up to 20 MPa." In Cutting-Edge Technology for Carbon Capture, Utilization, and Storage, 123–34. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2018. http://dx.doi.org/10.1002/9781119363804.ch9.

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6

Autodesk. "Motion Capture." In Learning Autodesk 3ds Max 2008 Foundation, 373–85. Elsevier, 2008. http://dx.doi.org/10.1016/b978-0-240-80927-4.50032-x.

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7

"CO2 Capture with MOF Membranes." In Microporous Materials for Separation Membranes, 323–59. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2019. http://dx.doi.org/10.1002/9783527343997.ch10.

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8

Achiou, Brahim, Madhavan Karunakaran, Mohamed Rachid Tchalala, and Youssef Belmabkhout. "MOF mixed matrix membranes for CO2 separation." In Advances in Carbon Capture, 331–55. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-12-819657-1.00015-3.

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9

"Working with motion capture data." In Learning Autodesk 3ds Max 2008 Foundation, 355–65. Routledge, 2013. http://dx.doi.org/10.4324/9780080557519-70.

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10

Lindsey, Rose, John Mohan, Sarah Bulloch, and Elizabeth Metcalfe. "Content and context of volunteering." In Continuity and Change in Voluntary Action, 85–112. Policy Press, 2018. http://dx.doi.org/10.1332/policypress/9781447324836.003.0005.

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This chapter explores the content and context of engagement in voluntary action in contemporary Britain. It finds that, over the last 30 years, the pattern of engagement in voluntary action has remained stable, in relation to specific causes supported, and types of tasks undertaken. However, voluntary effort is highly concentrated within a ‘civic core’ of volunteers. The distribution of volunteers is highly stratified; those most likely to engage in formal, organisational roles tend to be those with high levels of economic, social and cultural capital. Using Mass Observation Project (MOP) material the chapter examines the content and context of individual volunteering and finds that MOP writers contribute a complex mix of different voluntary activities. However, many do not immediately recognise their contribution as volunteering, which leads us to question how surveys can successfully capture different types of voluntary engagement. MOP writing also points to the very blurred boundary between informal care and informal volunteering. The chapter finds that MOP writers’ emphasis on familial commitments is a striking feature of their accounts of unpaid work and of voluntary activity; yet this has been largely absent from public discussion about volunteering rates.

Тези доповідей конференцій з теми "Capteur MOx":

1

La Rotta Santos, Pedro Felipe, Fatima Moumtadi, and Angel Lambertt Lobaina. "A system for capture, transmission and mix digital audio." In 2015 International Conference on Computing Systems and Telematics (ICCSAT). IEEE, 2015. http://dx.doi.org/10.1109/iccsat.2015.7362961.

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2

ElKady, Ahmed M., Andrei Evulet, Anthony Brand, Tord Peter Ursin, and Arne Lynghjem. "Exhaust Gas Recirculation in DLN F-Class Gas Turbines for Post-Combustion CO2 Capture." In ASME Turbo Expo 2008: Power for Land, Sea, and Air. ASMEDC, 2008. http://dx.doi.org/10.1115/gt2008-51152.

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This paper describes experimental work performed at General Electric, Global Research Center to evaluate the performance and understand the risks of using Dry Low NOx (DLN) technologies in Exhaust Gas Recirculation (EGR) conditions. Exhaust Gas Recirculation is viewed as an enabling technology for increasing the CO2 concentration of the flue gas while decreasing the volume of the post-combustion separation plant and therefore allowing a significant reduction in CO2 capture cost. A research combustor was developed for exploring the performance of nozzles operating in low O2 environment at representative pressures and temperatures. A series of experiments in a visually accessible test rig have been performed at gas turbine pressures and temperatures, in which inert gases such as N2/CO2 were used to vitiate the fresh air to the levels determined by cycle models. Moreover, the paper will discuss experimental work performed using a DLN nozzle used in GE’s F-class heavy-duty gas turbines. Experimental results using a research combustor operating in partially premixed mode, incorporate the effect of applying EGR on operability, efficiency and emissions performance under conditions of up to 40% EGR. Experiments performed in fully premixed mode using DLN single nozzle combustor revealed that further reductions in NOx could be achieved and at the same time still complying with CO emissions. While most existing studies concentrate on limitations related to the Minimum Oxygen Concentration (MOC) at the combustor exit, we report the importance of CO2 levels in the oxidizer. This limitation is as important as the MOC and it varies with the pressure and firing temperatures.
3

Shibata, Masashi, Yuichi Ohtsuka, Kazuya Okamoto, and Masakazu Takahashi. "Toward an Efficient Search Method to Capture the Future MOT Curriculum Based on the Society 5.0." In 2017 Portland International Conference on Management of Engineering and Technology (PICMET). IEEE, 2017. http://dx.doi.org/10.23919/picmet.2017.8125333.

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4

Venkateswaran, Prabhakar, Andrew D. Marshall, Jerry M. Seitzman, and Tim C. Lieuwen. "Turbulent Consumption Speeds of High Hydrogen Content Fuels From 1–20 atm." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94484.

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This work describes measurements and analysis of the turbulent consumption speeds, ST,GC, of H2/CO fuel blends. We report measurements of ST,GC at pressures and normalized turbulence intensities, u′rms/SL,0 up to 20 atm and 1800, respectively for a variety of H2/CO mixtures and equivalence ratios. In addition, we present correlations of these data using laminar burning velocities of highly stretched flames, SL,max, derived from quasi-steady leading points models. These analyses show that SL,max can be used to correlate data over a broad range of fuel compositions, but do not capture the pressure sensitivity of ST,GC. We suggest that these pressure effects are more fundamentally a manifestation of non-quasi-steady behavior in the mass burning rate at the flame leading points.
5

Cappellini, Niccolò, Bart Blockmans, Jakob Fiszer, Tommaso Tamarozzi, Francesco Cosco, and Wim Desmet. "Reduced-Order Modelling of Multibody Contact Problems: A Novel Semi-Analytic Method." In ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/detc2017-67948.

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In this paper we present a novel method to efficiently solve gear contact simulations in a flexible multi-body environment. Semi-analytical contact approaches have been recently used in Finite Element (FE) simulations for describing the displacement field in the contact zone and eliminating the need for highly refined FE meshes. In the proposed method, we integrate a semi-analytic strategy with a Model Order Reduction (MOR) scheme, which allows us to decrease further the reduced order model complexity as well as the computational burden. We validate the method against state-of-the-art MOR techniques, for both static and dynamic gear contact problems. Finally the results show how the presented method is able to more efficiently capture quantitatively the transmission error in case of spur geared transmission for different torque levels.
6

Zhao, Chengshuai, Shuai Liu, Feng Huang, Shichao Liu, and Wen Zhang. "CSGNN: Contrastive Self-Supervised Graph Neural Network for Molecular Interaction Prediction." In Thirtieth International Joint Conference on Artificial Intelligence {IJCAI-21}. California: International Joint Conferences on Artificial Intelligence Organization, 2021. http://dx.doi.org/10.24963/ijcai.2021/517.

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Molecular interactions are significant resources for analyzing sophisticated biological systems. Identification of multifarious molecular interactions attracts increasing attention in biomedicine, bioinformatics, and human healthcare communities. Recently, a plethora of methods have been proposed to reveal molecular interactions in one specific domain. However, existing methods heavily rely on features or structures involving molecules, which limits the capacity of transferring the models to other tasks. Therefore, generalized models for the multifarious molecular interaction prediction (MIP) are in demand. In this paper, we propose a contrastive self-supervised graph neural network (CSGNN) to predict molecular interactions. CSGNN injects a mix-hop neighborhood aggregator into a graph neural network (GNN) to capture high-order dependency in the molecular interaction networks and leverages a contrastive self-supervised learning task as a regularizer within a multi-task learning paradigm to enhance the generalization ability. Experiments on seven molecular interaction networks show that CSGNN outperforms classic and state-of-the-art models. Comprehensive experiments indicate that the mix-hop aggregator and the self-supervised regularizer can effectively facilitate the link inference in multifarious molecular networks.
7

Ali, Sk Ahad, Hamid Seifoddini, and Hong Sun. "Intelligent Dynamic Production Scheduling in High-Mix Low-Volume Manufacturing Systems Under Uncertain Environment." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-82415.

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Today’s globalization market drives industries toward increased expectations on lean production. These expectations have put industries under pressure to become more agile under highly dynamic market and manufacturing conditions in the high-mix low-volume manufacturing systems. Dynamic production scheduling is a key factor in fulfilling the customer’s expectation. It becomes more critical due to dynamics and uncertainty in the manufacturing systems. This research addresses the uncertainty consideration of machine and labor for dynamic production scheduling. Fuzzy based system is used to capture the labor and machine uncertainty and implemented in simulation environment. Based on the variability from the simulation environment, a genetic algorithm based optimization tool is developed for dynamic production scheduling. The proposed method is validated with real-world applications.
8

Tsuchiya, Toshiaki. "Accurate measurements of the charge pumping current due to individual MOS interface traps and interactions in the carrier capture/emission processes." In ESSDERC 2011 - 41st European Solid State Device Research Conference. IEEE, 2011. http://dx.doi.org/10.1109/essderc.2011.6044165.

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9

Shamsudin, I. K., I. Idris, A. Abdullah, J. Kim, and M. R. Othman. "Development of microporous Zr-MOF UiO-66 by sol-gel synthesis for CO2 capture from synthetic gas containing CO2 and H2." In 6TH INTERNATIONAL CONFERENCE ON ENVIRONMENT (ICENV2018): Empowering Environment and Sustainable Engineering Nexus Through Green Technology. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5117117.

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10

Zheng, Feng Jie, Fu Zheng Qu, and Xue Guan Song. "A Hybrid Model to Analyze the Fluid-Structure Interaction Phenomenon of a Relief System and Experimental Validation." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93779.

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Abstract As one essential component of a pressurized system, a relief valve is used to guarantee the pressure within a prescribed range. But in practical engineering, pressure fluctuation caused by the operation of a relief valve will travel along the pipeline and couple with the motion of the valve, which might result in malfunction of the valve and the system. In order to investigate the fluid-structure interaction (FSI) phenomenon, a hybrid model combining the method of characteristics (MOC) and computational fluid dynamics (CFD) method is proposed. In the hybrid FSI model, the characteristics of pressure resource is modeled using the performance curves, the compressible gas transmitting in the pipe is calculated by one-dimensional MOC, and the air flow in the valve as well as the valve motion is simulated by a two-dimensional CFD model. To validate the hybrid model, 1:1 scaled test rig is conducted. The compared results show that the hybrid model not only can accurately capture the pressure fluctuation in straight pipeline induced by the closure of the valve but also can accurately predict the forms of the valve motion.

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