Bibliographies thématiques / Arçay

Littérature scientifique sur le sujet « Arçay »

Auteur : Grafiati

Publié le 3 décembre 2023

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Articles de revues sur le sujet "Arçay"

Allard, J., X. Bertin, E. Chaumillon et F. Pouget. « Sand spit rhythmic development : A potential record of wave climate variations ? Arçay Spit, western coast of France ». Marine Geology 253, n^o 3-4 (août 2008) : 107–31. http://dx.doi.org/10.1016/j.margeo.2008.05.009.

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Huan Deng, Huan Deng, Qionghua Wang Qionghua Wang et Dahai Li Dahai Li. « Method of generating orthoscopic elemental image array from sparse camera array ». Chinese Optics Letters 10, n^o 6 (2012) : 061102–61104. http://dx.doi.org/10.3788/col201210.061102.

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Yuhao Xue, Yuhao Xue, Bing He Bing He, Jun Zhou Jun Zhou, Jinchong Xue Jinchong Xue, Zhen Li Zhen Li, Houkang Liu Houkang Liu et Qihong Lou Qihong Lou. « Array size scaling of passive coherent beam combination in fiber laser array ». Chinese Optics Letters 10, n^o 1 (2012) : 011401–11403. http://dx.doi.org/10.3788/col201210.011401.

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Le Minh Thuy. « SERIES FEED FAN-BEAM ANTENNA ARRAY WITH A LOW SIDELOBE LEVEL FOR POSITIONING SYSTEM ». Journal of Military Science and Technology, n^o 66A (6 mai 2020) : 55–65. http://dx.doi.org/10.54939/1859-1043.j.mst.66a.2020.55-65.

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In this paper, a novel antenna array at 5GHz is presented with a low sidelobe level and wide impedance bandwidth for indoor positioning applications . The antenna array has the size of 450 ×57×0.8 mm3 with the high gain of 14.5dBi and the low SLL of -18 dB at 5GHz. The series feed using Unequal Split T-Junction is proposed with the Chebyshev-amplitude distribution to improve SLL. Besides the 1800 phase and amplitude distribution, by deploying driven elements above each single antenna element, the radiation pattern and the gain of the antenna aray are significantly improved.

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Nie Juan, 聂娟, 杜佳林 Du Jialin, 李凡星 Li Fanxing, 王思沫 Wang Simo, 杨帆 Yang Fan, 谌庆荣 Chen Qingrong, 亓波 Qi Bo et 严伟 Yan Wei. « 基于微透镜阵列的大面积LED阵列光源匀化方法 ». Laser & ; Optoelectronics Progress 60, n^o 15 (2023) : 1525003. http://dx.doi.org/10.3788/lop222109.

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GHERMAN, Laurian. « HALBACH ARRAY LAUNCH SYSTEM ». Review of the Air Force Academy 14, n^o 1 (16 mai 2016) : 77–84. http://dx.doi.org/10.19062/1842-9238.2016.14.1.11.

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D S, Krishna Murthy. « Chromosomes to Genes : Implications of Array Comparative Genomic Hybridization (array-CGH) in Medical Practice ». JOURNAL OF CLINICAL AND BIOMEDICAL SCIENCES 01, n^o 3 (15 septembre 2011) : 91–96. http://dx.doi.org/10.58739/jcbs/v01i3.9.

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Acciaro, Vincenzo, et Amiya Nayak. « Characterization of Catastrophic Faults in Reconfigurable Systolic Arrays ». VLSI Design 7, n^o 2 (1 janvier 1998) : 143–50. http://dx.doi.org/10.1155/1998/79841.

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A common technique widely used to achieve fault tolerance in systolic arrays consists in incorporating in the array additional processing elements (PEs) and extra bypass links. Given a sufficient number of PEs and a large enough set of bypass links, it might seem that the array can easily tolerate a large number of faults provided they do not occur in consecutive locations. It is not always the case as shown in this paper. In fact, certain fault patterns exist and may occur which would prevent any kind of restructuring of the aray, thus making the structure unusable. For a given set of bypass links from each PE in the array, it is possible to identify such fault patterns which will prevent any reconfiguration. In this paper, we identify the class of fault patterns that are catastrophic for linear systolic arrays, examine their characteristics, and describe a method for constructing such fault patterns.

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Sheen, Dong-Mok, et Youn-Am Lee. « Design of a Cable Array Robot System ». Journal of the Society of Naval Architects of Korea 48, n^o 4 (20 août 2011) : 375–80. http://dx.doi.org/10.3744/snak.2011.48.4.375.

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S., Nagaraj. « Design and Analysis of 8-bit Array, Carry Save Array, Braun, Wallace Tree and Vedic Multipliers ». International Journal of Psychosocial Rehabilitation 24, n^o 3 (30 mars 2020) : 2687–97. http://dx.doi.org/10.37200/ijpr/v24i3/pr2020305.

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Thèses sur le sujet "Arçay"

Houssein, Abdi Yassin. « La côte continentale du Pertuis Breton, du début du XVIIIe siècle à la fin du Second Empire : évolution et aménagement du littoral depuis la Tranche-sur-Mer jusqu'au nord de La Rochelle ». Electronic Thesis or Diss., La Rochelle, 2023. http://www.theses.fr/2023LAROS013.

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Entre le début du XVIIIe siècle et la fin du Second Empire, la côte continentale du Pertuis Breton connaît une évolution significative. Elle est constituée de trois paysages géomorphologiques singuliers, dynamiques et corrélés : un territoire marécageux, une zone dunaire et une côte à falaises. Ces milieux subissent des transformations naturelles lentes à l’origine de la constitution des flèches sableuses d’Arcay et de l’Aiguillon qui forment un grand cordon dunaire. Celui-ci est alimenté par un transport considérable des sables de l’ouest vers l’est par dérive littorale. Ces mouvements de sédiments sont soumis à l’influence d’agents hydrodynamiques. La remontée des eaux de l’océan entraîne le colmatage progressif du golfe des Pictons par des apports de sédiments d’origine fluvio-marine. Ce processus est à l’origine de la formation de l’anse de l’Aiguillon et du Marais poitevin. Ces milieux subissent également des transformations naturelles brutales dues à des phénomènes climatiques extrêmes. Cette étude met aussi en lumière la part de l’influence humaine dans l’évolution et la modification de leur trait de côte. Les aménagements sont particulièrement visibles dans le Marais poitevin. Entre le Moyen Âge et le XIXe siècle, ce territoire est l’enjeu d’une grande transformation qui modifie largement son écosystème. Cette zone humide est drainée par l’instauration de canaux, de digues et d’écluses. Grâce aux dessèchements réalisés par les sociétés des marais, l’agriculture et l’élevage connaissent un essor considérable et remplacent progressivement ces terres inondables réputées insalubres. Les marais connaissent alors un afflux de population. L'Etat est présent sur ce littoral par l’intermédiaire des Amirautés sous l’Ancien Régime ou de l’administration des Ponts et Chaussées au XIXe siècle
Between the beginning of the 18th century and the end of the Second Empire, the continental coast of the Pertuis Breton experienced a significant evolution. It is composed of three singular, dynamic and correlated geomorphological landscapes: a marshy area, a dune zone and a cliff coast. These environments underwent slow natural transformations which led to the creation of the sandy spits of Arcay and Aiguillon which form a large dune belt. The latter is fed by a considerable transport of sand from west to east by littoral drift. These sediment movements are subject to the influence of hydrodynamic agents. The rise in oceanic waters leads to the progressive clogging of the Gulf of the Pictons with sediment of fluvio marine origin. This process is at the origin of the formation of the Aiguillon Cove and the Poitevin Marsh. These environments also go through brutal natural transformations due to extreme climatic phenomena. This study also highlights the role of human influence in the evolution and modification of their coastline. Developments are particularly visible in the Marais Poitevin. Between the Middle Ages and the 19th century, this territory was the focus of a major transformation that greatly modified its ecosystem. This wetland was drained by the creation of canals, dykes and locks. Thanks to the draining carried out by the marsh companies, agriculture and livestock farming flourished and gradually replaced the flooded lands, which were considered unsanitary. The marshes then experienced an influx of people. The State is present on this coastline through the Admiralty under the Ancien Régime or the administration of the Ponts et Chaussées in the 19th century

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Walter, Thomas. « Dental reference array ». Diss., lmu, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-139683.

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Liu, Guang. « Photovoltaic array simulators ». Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25103.

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Two basic types of photovoltaic (PV) array simulator have been designed and tested. The first involves the use of a pilot panel and variable light source. It is implemented with analogue circuits. A stability analysis based on Popov's method is presented for this simulator with resistance-inductance (R-L) loads. In the second, characteristic array curves are stored in the memory of a microprocessor-based simulator. The design of both simulators is based on the transfer function method. By using the computing facility available, a stability study for the Type I simulator and some dynamic simulations are carried out. Both simulators are capable of driving a special load, namely, an experimental solar pumping system. The experimental results for both types of' simulator are satisfactory in terms of steady state precision and dynamic behaviour when used with this load. Compared with previously-reported PV array simulator designs [6,7,8,9,18], the two simulators described here have the following distinctive features: 1. A new method of sample curve generation for the Type II simulator results in relatively short sampling period and small memory size. 2. The sample curves of the type II simulator are based directly on the real PV array to be simulated. They are more accurate than the sample curves in references [6,7,9]. 3. Different loads (R, R-L and an experimental solar pumping system) have been considered in the design and have been tested in laboratory. 4. A stability analysis and some dynamic simulations are presented for the type I simulator. An analysis of this type has not been reported in previous studies [6,7,8,9,18].
Applied Science, Faculty of
Electrical and Computer Engineering, Department of
Graduate

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Manra, Vikas. « Efficient array-multipliers / ». Available to subscribers only, 2006. http://proquest.umi.com/pqdweb?did=1240704201&sid=4&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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Dowlut, Naushad Hussein. « Superresolution array design ». Thesis, Imperial College London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266213.

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Wan, Shuang. « Parametric array calibration ». Thesis, University of Edinburgh, 2011. http://hdl.handle.net/1842/4902.

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The subject of this thesis is the development of parametric methods for the calibration of array shape errors. Two physical scenarios are considered, the online calibration (self-calibration) using far-field sources and the offline calibration using near-field sources. The maximum likelihood (ML) estimators are employed to estimate the errors. However, the well-known computational complexity in objective function optimization for the ML estimators demands effective and efficient optimization algorithms. A novel space-alternating generalized expectation-maximization (SAGE)-based algorithm is developed to optimize the objective function of the conditional maximum likelihood (CML) estimator for the far-field online calibration. Through data augmentation, joint direction of arrival (DOA) estimation and array calibration can be carried out by a computationally simple search procedure. Numerical experiments show that the proposed method outperforms the existing method for closely located signal sources and is robust to large shape errors. In addition, the accuracy of the proposed procedure attains the Cram´er-Rao bound (CRB). A global optimization algorithm, particle swarm optimization (PSO) is employed to optimize the objective function of the unconditional maximum likelihood (UML) estimator for the farfield online calibration and the near-field offline calibration. A new technique, decaying diagonal loading (DDL) is proposed to enhance the performance of PSO at high signal-to-noise ratio (SNR) by dynamically lowering it, based on the counter-intuitive observation that the global optimum of the UML objective function is more prominent at lower SNR. Numerical simulations demonstrate that the UML estimator optimized by PSO with DDL is optimally accurate, robust to large shape errors, and free of the initialization problem. In addition, the DDL technique is applicable to a wide range of array processing problems where the UML estimator is employed and can be coupled with different global optimization algorithms.

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Southwell, David Thomas. « Columnar array networks ». Thesis, University of York, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297157.

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Wang, Ji-yong 1967. « Hybrid ultrasonic array ». Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/84216.

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Pacheco, Shaun, et Shaun Pacheco. « Array Confocal Microscopy ». Diss., The University of Arizona, 2017. http://hdl.handle.net/10150/623252.

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Confocal microscopes utilize point illumination and pinhole detection to reject out-of-focus light. Because of the point illumination and detection pinhole, confocal microscopes typically utilize point scanning for imaging, which limits the overall acquisition speed. Due to the excellent optical sectioning capabilities of confocal microscopes, they are excellent tools for the study of three-dimensional objects at the microscopic scale. Fluorescence confocal microscopy is especially useful in biomedical imaging due to its high sensitivity and specificity. However, all designs for confocal microscopes must balance tradeoffs between the numerical aperture (NA), field of view (FOV), acquisition speed, and cost during the design process. In this dissertation, two different designs for an array confocal microscope are proposed to significantly increase the acquisition speed of confocal microscopes. An array confocal microscope scans an array of beams in the object plane to parallelize the confocal microscope to significantly reduce the acquisition time. If N beams are used in the array confocal microscope, the acquisition time is reduced by a factor of N. The first design scans an array of miniature objectives over the object plane to overcome the trade-off between FOV and NA. The array of objectives is laterally translated and each objective scans a small portion of the total FOV. Therefore, the number of objectives used in the array limits the FOV, and the FOV is increased without sacrificing NA. The second design utilizes a single objective with a high NA, large FOV, and large working distance designed specifically for whole brain imaging. This array confocal microscope is designed to speed up the acquisition time required for whole brain imaging. Utilizing an objective with a large FOV and scanning using multiple beams in the array significantly reduces the time required to image large three-dimensional volumes. Both array confocal microscope designs use beam-splitting gratings to efficiently split one laser beam into a number of equal energy outgoing beams, so this dissertation explores design methods and analyses of beam-splitting gratings to fabrication errors. In this dissertation, an optimization method to design single layer beam-splitting gratings with reduced sensitivity to fabrication errors is proposed. Beam-spitting gratings are typically only designed for a single wavelength, so achromatic beam-splitting grating doublets are also analyzed for possible use in array confocal microscopes with multiple excitation wavelengths. An analysis of the lateral shift between grating layers in the achromatic grating doublet proves grating profiles with constant first spatial derivatives are significantly less sensitive than continuous phase profiles. These achromatic grating doublets have designed performance at two wavelengths, but the diffraction angles at the two wavelengths differ. To overcome that limitation, scale-invariant achromatic gratings are designed, which not only provide designed performance at two wavelengths, but also equal diffraction angles at two wavelengths.

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Willerton, Marc. « Array auto-calibration ». Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/11684.

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In this thesis, efficient methods are presented to calibrate large or small aperture array systems containing different types of uncertainties. specifically the challenge of reducing the number of external sources required to calibrate an array is addressed and array calibration methods suitable for use when sources may be operating in the "near-far" field of the array are developed. Together, this can ease the overheads involved in calibrating and recalibrating an array system. In addition to presenting novel array calibration algorithms, this thesis also presents a novel transformation allowing a planar array to be expressed as a virtual uniform linear array of a much larger number of elements. This allows the array manifold of a planar array, which in general consists of non-hyperhelical curves, to be expressed using a number of hyperhelices which each correspond to the array manifold of a linear array. This hyperhelical structure has the potential to ease calibration overheads as well as having many other potential applications in array processing. This thesis presents novel pilot and auto array calibration schemes for estimating different types of array uncertainties. A novel pilot calibration algorithm is proposed whereby a single source transmitting from a known location (i.e. a pilot) at two carrier frequencies is used to estimate geometrical uncertainties in a planar array. This is achieved by exploiting the frequency dependence on the boundary between the "near-far" and "far" field of the array. In addition, an auto-calibration method is presented which doesn't require any external sources to estimate array uncertainties. Here, geometrical, complex gain and local oscillator (i.e. frequency and phase) uncertainties associated with the array elements are considered. In this approach, array elements transmit in turn to the others which operate as an array receiver. Large and small array apertures are investigated. Throughout the thesis, extensive computer simulations are presented to analyse the performance of the algorithms developed.

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Livres sur le sujet "Arçay"

Visser, Hubregt J. Array and Phased Array Antenna Basics. Chichester, UK : John Wiley & Sons, Ltd, 2005. http://dx.doi.org/10.1002/0470871199.

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Array and Phased Array Antenna Basics. New York : John Wiley & Sons, Ltd., 2006.

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Cadell, Elizabeth. Bridal array. Bath : Chivers, 1995.

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Benesty, Jacob, Israel Cohen et Jingdong Chen. Array Processing. Cham : Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-15600-8.

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Bhattacharyya, Arun K. Phased Array Antennas. Hoboken, NJ, USA : John Wiley & Sons, Inc., 2005. http://dx.doi.org/10.1002/0471769126.

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Yan, Shefeng. Broadband Array Processing. Singapore : Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6802-8.

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Pillai, S. Uṇṇikrishṇa, et C. S. Burrus, dir. Array Signal Processing. New York, NY : Springer New York, 1989. http://dx.doi.org/10.1007/978-1-4612-3632-0.

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Haykin, Simon, John Litva et Terence J. Shepherd, dir. Radar Array Processing. Berlin, Heidelberg : Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77347-1.

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Bai, Mingsian R., Jeong-Guon Ih et Jacob Benesty. Acoustic Array Systems. Singapore : John Wiley & Sons Singapore Pte. Ltd., 2013. http://dx.doi.org/10.1002/9780470827253.

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Chapitres de livres sur le sujet "Arçay"

Weik, Martin H. « array ». Dans Computer Science and Communications Dictionary, 64. Boston, MA : Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_842.

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Haykin, S., J. Litva et T. J. Shepherd. « Overview ». Dans Radar Array Processing, 1–2. Berlin, Heidelberg : Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77347-1_1.

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Zhu, Z., et S. Haykin. « Radar Detection Using Array Processing ». Dans Radar Array Processing, 3–46. Berlin, Heidelberg : Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77347-1_2.

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Nickel, U. « Radar Target Parameter Estimation with Array Antennas ». Dans Radar Array Processing, 47–98. Berlin, Heidelberg : Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77347-1_3.

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Ottersten, B., M. Viberg, P. Stoica et A. Nehorai. « Exact and Large Sample Maximum Likelihood Techniques for Parameter Estimation and Detection in Array Processing ». Dans Radar Array Processing, 99–151. Berlin, Heidelberg : Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77347-1_4.

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Shepherd, T. J., et J. G. McWhirter. « Systolic Adaptive Beamforming ». Dans Radar Array Processing, 153–247. Berlin, Heidelberg : Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77347-1_5.

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Ho, T. V., et J. Litva. « Two-Dimensional Adaptive Beamforming : Algorithms and Their Implementation ». Dans Radar Array Processing, 249–93. Berlin, Heidelberg : Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77347-1_6.

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Steinberg, B. D. « The Radio Camera ». Dans Radar Array Processing, 295–310. Berlin, Heidelberg : Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77347-1_7.

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Chivers, Ian, et Jane Sleightholme. « Whole Array and Additional Array Features ». Dans Introducing Fortran 95, 123–34. London : Springer London, 2000. http://dx.doi.org/10.1007/978-1-4471-0403-2_11.

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Chivers, Ian, et Jane Sleightholme. « Whole Array and Additional Array Features ». Dans Introduction to Programming with Fortran, 113–30. London : Springer London, 2011. http://dx.doi.org/10.1007/978-0-85729-233-9_8.

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Actes de conférences sur le sujet "Arçay"

« Acknowledgements ». Dans 2010 IEEE International Symposium on Phased Array Systems and Technology (ARRAY 2010). IEEE, 2010. http://dx.doi.org/10.1109/array.2010.5613399.

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Keevil, John E. « Feed equations for phased array multiport antennas ». Dans 2013 IEEE International Symposium on Phased Array Systems and Technology (ARRAY 2013). IEEE, 2013. http://dx.doi.org/10.1109/array.2013.6731849.

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Brookner, Eli. « MIMO radars demystified — and their conventional equivalents ». Dans 2016 IEEE International Symposium on Phased Array Systems and Technology (PAST). IEEE, 2016. http://dx.doi.org/10.1109/array.2016.7832614.

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Hafizovic, Ines, Carl-Inge Colombo Nilsen et Morgan Kjolerbakken. « Acoustic tracking of aircraft using a circular microphone array sensor ». Dans 2010 IEEE International Symposium on Phased Array Systems and Technology (ARRAY 2010). IEEE, 2010. http://dx.doi.org/10.1109/array.2010.5613233.

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Wada, Toshihiro, et Takashi Iwamoto. « Evaluation of bias errors in positioning a radio transmitter with a lot of interference waves ». Dans 2010 IEEE International Symposium on Phased Array Systems and Technology (ARRAY 2010). IEEE, 2010. http://dx.doi.org/10.1109/array.2010.5613234.

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Schippers, Harmen, et Guus Vos. « On DOA estimation of vibrating antenna arrays ». Dans 2010 IEEE International Symposium on Phased Array Systems and Technology (ARRAY 2010). IEEE, 2010. http://dx.doi.org/10.1109/array.2010.5613235.

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Antón, A., A. Torre, I. García-Rojo, I. Albarran et R. Hernández. « High resolution techniques for fast acquisition of satellite signals ». Dans 2010 IEEE International Symposium on Phased Array Systems and Technology (ARRAY 2010). IEEE, 2010. http://dx.doi.org/10.1109/array.2010.5613236.

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Shaw, A., et N. Wilkins. « Frequency invariant electro-magnetic source location using true time delay beam space processing ». Dans 2010 IEEE International Symposium on Phased Array Systems and Technology (ARRAY 2010). IEEE, 2010. http://dx.doi.org/10.1109/array.2010.5613237.

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Ly, Peter Q. C., Stephen D. Elton et Douglas A. Gray. « AOA estimation of two narrowband signals using interferometry ». Dans 2010 IEEE International Symposium on Phased Array Systems and Technology (ARRAY 2010). IEEE, 2010. http://dx.doi.org/10.1109/array.2010.5613238.

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Ozawa, Jun, Jun Cheng et Yoichiro Watanabe. « Hamiltonian algorithm with momentum attenuation for adaptive beamforming of ESPAR antenna ». Dans 2010 IEEE International Symposium on Phased Array Systems and Technology (ARRAY 2010). IEEE, 2010. http://dx.doi.org/10.1109/array.2010.5613239.

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Rapports d'organisations sur le sujet "Arçay"

Hodgkiss, William S. Array Development. Fort Belvoir, VA : Defense Technical Information Center, mars 1994. http://dx.doi.org/10.21236/ada280836.

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Simpson, Thomas B. Fiber Laser Array. Fort Belvoir, VA : Defense Technical Information Center, janvier 2002. http://dx.doi.org/10.21236/ada403729.

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Lari, S. Detector array design. Office of Scientific and Technical Information (OSTI), février 1996. http://dx.doi.org/10.2172/184277.

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Wickman, Michael, et Phil Hayashida. Microlaser Array Development. Fort Belvoir, VA : Defense Technical Information Center, décembre 1994. http://dx.doi.org/10.21236/ada303461.

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Kailath, Thomas. Sensor Array Processing. Fort Belvoir, VA : Defense Technical Information Center, février 1992. http://dx.doi.org/10.21236/ada262820.

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Zhang. L52052 Control of Horizontal Beam Width with Phased Array Transducers. Chantilly, Virginia : Pipeline Research Council International, Inc. (PRCI), janvier 2008. http://dx.doi.org/10.55274/r0010945.

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Accurate defect sizing is becoming more and more critical in pipeline welds due to the application of Engineering Critical Assessment, demanding deep sea applications, the arrival of high performance piping, and increased public safety demands. This project improved horizontal beam focusing for automated ultrasonic testing; curved arrays, focused lenses and electronic focusing using phased arrays were investigated. Two target applications were selected: thickwalled risers and tendons, and thinner walled high performance pipes for onshore. Extensive computer modeling was performed to optimize the focusing. The recommended array for thick-walled pipes has 360 elements in three rows, and is mechanically curved. The results from this 1.5D and a standard 1D array on a thick-wall calibration block showed that the 1.5D array had significantly better sizing. Also important, side lobes were significantly reduced. Computer modeling showed that a 60 element, 1 mm pitch array with a 100 mm curvature gave significant improvements over the standard unfocused array. The experimental results showed a significant improvement; the curved array oversized FBH reflectors by only ~1 mm, instead of the 4�6 mm from the unfocused array. These curved arrays can be used on PipeWIZARD with no modifications to the general mechanics or software.

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Scarbrough, Kent, Stephen K. Mitchell et J. M. Hovenga. Shallow Water Array Performance (SWAP) : Array Element Localization and Performance Characterization. Fort Belvoir, VA : Defense Technical Information Center, septembre 2007. http://dx.doi.org/10.21236/ada569081.

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Nabity, James. MEMS Colloid Thruster Array. Fort Belvoir, VA : Defense Technical Information Center, juin 2005. http://dx.doi.org/10.21236/ada438599.

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Primas, Lori Ellen. SQS Fiber Lens Array. Office of Scientific and Technical Information (OSTI), novembre 2018. http://dx.doi.org/10.2172/1482901.

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Lehman, Sean K., et Angela M. Foudray. X-Ray Array Sources. Office of Scientific and Technical Information (OSTI), octobre 2011. http://dx.doi.org/10.2172/1114713.

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