Bibliografías temáticas / Patch methods

Índice

Artículos de revistas
Tesis
Libros
Capítulos de libros
Actas de conferencias
Informes

Literatura académica sobre el tema "Patch methods"

Autor: Grafiati

Publicado: 25 de mayo de 2024

Crea una cita precisa en los estilos APA, MLA, Chicago, Harvard y otros

Elija tipo de fuente:

Consulte las listas temáticas de artículos, libros, tesis, actas de conferencias y otras fuentes académicas sobre el tema "Patch methods".

Junto a cada fuente en la lista de referencias hay un botón "Agregar a la bibliografía". Pulsa este botón, y generaremos automáticamente la referencia bibliográfica para la obra elegida en el estilo de cita que necesites: APA, MLA, Harvard, Vancouver, Chicago, etc.

También puede descargar el texto completo de la publicación académica en formato pdf y leer en línea su resumen siempre que esté disponible en los metadatos.

Artículos de revistas sobre el tema "Patch methods"

Gander, Martin, Laurence Halpern, Frédéric Magoulès, and François-Xavier Roux. "Analysis of Patch Substructuring Methods." International Journal of Applied Mathematics and Computer Science 17, no. 3 (2007): 395–402. http://dx.doi.org/10.2478/v10006-007-0032-1.

Texto completo

Resumen

Analysis of Patch Substructuring MethodsPatch substructuring methods are non-overlapping domain decomposition methods like classical substructuring methods, but they use information from geometric patches reaching into neighboring subdomains, condensated on the interfaces, to enhance the performance of the method, while keeping it non-overlapping. These methods are very convenient to use in practice, but their convergence properties have not been studied yet. We analyze geometric patch substructuring methods for the special case of one patch per interface. We show that this method is equivalent to an overlapping Schwarz method using Neumann transmission conditions. This equivalence is obtained by first studying a new, algebraic patch method, which is equivalent to the classical Schwarz method with Dirichlet transmission conditions and an overlap corresponding to the size of the patches. Our results motivate a new method, the Robin patch method, which is a linear combination of the algebraic and the geometric one, and can be interpreted as an optimized Schwarz method with Robin transmission conditions. This new method has a significantly faster convergence rate than both the algebraic and the geometric one. We complement our results by numerical experiments.

Los estilos APA, Harvard, Vancouver, ISO, etc.

Salmon, Joseph, and Yann Strozecki. "Patch reprojections for Non-Local methods." Signal Processing 92, no. 2 (2012): 477–89. http://dx.doi.org/10.1016/j.sigpro.2011.08.011.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

De Boer, Edith M., and Derk P. Bruynzeel. "Patch tests: Evaluation by instrumental methods." Clinics in Dermatology 14, no. 1 (1996): 41–50. http://dx.doi.org/10.1016/0738-081x(95)00107-q.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Chen, Wanji. "Enhanced patch test of finite element methods." Science in China Series G 49, no. 2 (2006): 213–27. http://dx.doi.org/10.1007/s11433-006-0213-1.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Havranek, Zdenek, and Ludvik Bejcek. "Local patch acoustic holography methods in enclosed spaces." Journal of the Acoustical Society of America 123, no. 5 (2008): 3310. http://dx.doi.org/10.1121/1.2933751.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Šćepanović, B., M. Knežević, and D. Lučić. "Methods for determination of ultimate load of eccentrically patch loaded steel I-girders." Informes de la Construcción 66, Extra-1 (2014): m018. http://dx.doi.org/10.3989/ic.13.076.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Nemec, Hannah M., D. Benjamin Christie, Anne Montgomery, and Danny M. Vaughn. "Wittmann Patch." American Surgeon 86, no. 8 (2020): 981–84. http://dx.doi.org/10.1177/0003134820942156.

Texto completo

Resumen

Introduction Damage control laparotomy (DCL) is a life-saving surgical technique, but the resultant open abdomen (OA) carries serious morbidity/mortality. Many methods are utilized to manage OAs, but discrepancy exists in distinguishing closure from coverage techniques. We observed a difference in our DCL patient outcomes managed with the Wittmann Patch (WP) closure device versus the more popular ABThera (AB) coverage device. We hypothesized that the WP contributed to an improved fascial closure rate of the OAs after DCL. Methods A retrospective review of OAs managed with the AB or WP at our Level 1 trauma center was performed using billing codes to capture DCL patients from 2011 to 2019. Patients were divided into AB alone or WP groups. Major endpoints included primary fascial closure (PFC) and delayed fascial closure (DFC, fascial closure after greater than 7 days). Results 189 patients were identified as AB and 38 as WP. Rates of death before closure, age, gender, and Injury Severity Score were similar in both groups. PFC = 81%-90% for AB versus WP, respectively. Excluding patients with preexisting hernias PFC = 87%-100% for AB versus WP ( P < .05) and DFC = 44%-100% for AB versus WP ( P ≤ 0.001). WP had a statistically higher rate of PFC and DFC. There was a decreased incidence of complications in the WP versus AB group. Conclusions While not well reported in the peer-reviewed literature, the application of the WP for management of the OA is an active form of pursuing PFC when compared with the AB, a coverage device. Our interinstitutional results have demonstrated superior PFC and DFC rates and fewer complications, in patients managed with the WP compared with the AB.

Los estilos APA, Harvard, Vancouver, ISO, etc.

FORRESTAL, P. J., D. J. KROL, G. J. LANIGAN, M. M. R. JAHANGIR, and K. G. RICHARDS. "An evaluation of urine patch simulation methods for nitrous oxide emission measurement." Journal of Agricultural Science 155, no. 5 (2016): 725–32. http://dx.doi.org/10.1017/s0021859616000939.

Texto completo

Resumen

SUMMARYGlobal nitrous oxide (N2O) inventory estimates for pasture systems are refined based on measurements of N2O loss from simulated urine patches. A variety of methods are used for patch simulation but they frequently use a uniform wetted area (UWA), often smaller than a bovine urine patch. However, natural patches follow non-uniform infiltration patterns expanding naturally from a point of deposit with a non-wetted zone of influence. Using 2 litres of urine the UWA method was compared, using a 0·156 m2 collar, with a naturally expanding effective area (NEEA) method, using a 0·462 m2 collar under high (HL) and low (LL) N2O loss conditions. The method chosen affects urine nitrogen (N) loading to the soil. Under HL the UWA method induced a N2O-N loss of 280·6 mg/patch, significantly less than the 434·8 mg/patch loss for the NEEA method, for the same simulated urination. Under LL there was no method effect. Efforts should be made to employ patch simulation methods, which mimic natural deposits and can be achieved, at least in part, by: (a) Using a urine volume and N content similar to that of the animal of interest. (b) Allowing natural infiltration of the chosen urine volume to permit tapering towards the edges. (c) Measuring from the zone of influence in addition to the wetted area, i.e. the patch effective area.

Los estilos APA, Harvard, Vancouver, ISO, etc.

Kim, Jin, Chun Hoi Kim, Chan Hum Park, et al. "Comparison of methods for the repair of acute tympanic membrane perforations: Silk patch vs. paper patch." Wound Repair and Regeneration 18, no. 1 (2010): 132–38. http://dx.doi.org/10.1111/j.1524-475x.2009.00565.x.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Ferdous, Nayla, Goh Chin Hock, Saidatul Hamidah A. Hamid, Mohamad Nazri Abdul Raman, Tiong Sieh Kiong, and Mahamod Ismail. "Different Structural Modification Methods of the Patch for Reducing the Size of An Microstrip Patch Antenna." International Journal of Engineering & Technology 7, no. 4.1 (2018): 86. http://dx.doi.org/10.14419/ijet.v7i4.1.28231.

Texto completo

Resumen

The aim of this paper is to present a simulation and analysis of a rectangular microstrip patch antenna with three different structural modifications to reduce the size of the antenna. We have tried to decrease the size of the antenna by inducing three different shaped slits inside the patch of the antenna. All these models have been designed and analyzed using CST Microwave Studio software. For designing the antennas, Flame Retardant 4 (FR-4 lossy) has been used as the substrate material with a dielectric constant of Ԑr=4.3. The antenna works at the frequency of 2.4 GHz. Performance characteristics such as return loss S11 parameter<-10 dB, directivity, side lobe level, gain and bandwidth of each of the modified designs are obtained and compared with the original design. We were able to reduce the size by maximum 18% and minimum 7% by only inducing the slits, while maintain the performance.

Los estilos APA, Harvard, Vancouver, ISO, etc.

Más fuentes

Tesis sobre el tema "Patch methods"

Elmezughi, Abdurrezagh, and s3089087@student rmit edu au. "Investigation of Methods for Integrating Broadband Microstrip Patch Antennas." RMIT University. Electrical and Computer Engineering, 2009. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20090305.093332.

Texto completo

Resumen

The use of the microstrip antenna has grown rapidly for the last two decades, because of the increasing demand for a low profile antenna with small size, low cost, and high performance over a large spectrum of frequencies. However, despite the advantages microstrip antennas provide, a number of technical challenges remain to be solved for microstrip antennas to reach their full potential, particularly if they are to be interfaced with monolithic circuits. The objective of this thesis is to examine novel methods for integrating and constructing broadband microstrip antennas, particularly at high microwave and millimeter wave frequencies where dimensions get very small and fabrication tolerances are critical. The first stage of the thesis investigates techniques to reduce the spurious feed radiation and surface wave generation from edge-fed patch antennas. A technique to reduce the spurious radiation from the edge-fed patch antenna by using a dielectric filled cavity behind the radiating element is explored. From this, a single element edge-fed cavity backed patch antenna was developed. Measured results showed low levels of cross polarization, making it suitable for dual or circular polarization applications. A 2 x 2 edge-fed cavity backed patch antenna array was also developed, which benefited greatly from this new technique due to the extensive feed network required. Furthermore, investigation into edge-fed cavity backed patches on high dielectric materials was also conducted. The measured impedance bandwidth of this edge-fed cavity backed patch is three times greater than the conventional edge-fed patch, and the gain increases to 5.1 dBi compared to 3.6 dBi. Further bandwidth enhancement of the single element edge-fed cavity backed antenna on high dielectric material was achieved by applying the hi-lo substrate structure. The hi-lo substrate structure produced an increase in the bandwidth to 26% from the 1.7% of the single element edge-fed cavity backed patch, while maintaining pattern integrity and radiation efficiency. Next, the development of a flip-chip bonding technique was investigated to enhance the fabrication accuracy and robustness of multilayer antennas on high dielectric materials. This technique was proven through simulation and experiment to provide good impedance and radiation performance via the high accuracy placement of the superstrate layer. The single element flip-chip patch antenna uses a high dielectric constant material for both the base and the patch superstrate, whereas the stacked flip-chip patch again uses a high and low permittivity material combination to achieve efficient wideband performance. Due to the high permittivity feed material, these antennas display the attributes required for integration with MMICs. The measured 10 dB return loss bandwidth of the single element was 4% with a gain of 4.6 dBi, whereas the stacked flip-chip patch showed very broadband performance, with a bandwidth of 23% with a gain of 8.5 dBi. The high accuracy placement and rigid attachment of the upper superstrat e layer via the flip-chip bonding technique also enables these antennas to be scaled up to millimeter-wave operational frequencies. The final section of this thesis is focused on developing a fabrication technique to enable the creation of a low permittivity layer at a nominated thickness.

Los estilos APA, Harvard, Vancouver, ISO, etc.

Zhou, Jianwei. "Geometric continuity and rectangular patch methods for surface modelling." Thesis, Brunel University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292978.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Apte, Anuja D. "Simulation of patch antennas on arbitrary dielectric substrates." Link to electronic thesis, 2003. http://www.wpi.edu/Pubs/ETD/Available/etd-0509103-122816.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Mullins, Andrew. "Sequential MCMC Methods For The Bayesian Inference of Patch-Based Surface Geometry." Thesis, University of Warwick, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.491522.

Texto completo

Resumen

This thesis is about video-based rendering, or free-viewpoint video as it sometimes known. The video-based rendering problem can be summarized as follows: after using a set of video cameras to record a dynamic scene from several different points of view, is it possible to play back that scene, but from an arbitrary point of view? First, current work in this area is reviewed and appraised. Then, this thesis makes the argument that for a general studio set-up, only two current approaches provide a realistic solution to this problem: voxel-based approaches, and polygon mesh-based approaches. That is, approaches which construct an explicit model of scene geometry to aid renderings of that scene. vVhen constructing these models of scene geometry, voxels provide a very general representation, whilst the smoothness constraint inherent in a polygon mesh provides a certain degree of robustness. This thesis makes the case for a new representation of scene geometry based on piecewise planar elements, which provides an excellent compromise between the voxel and polygon meshbased approaches. In order for such an approach to make sense, two things are necessary: some method of estimating planar elements which accurately reflect the scene geometry; and some way to produce renderings from this representation. The former is the topic of this thesis, and the problem can be broken down into three sub-problems: how to construct a suitable prior on the surface geometry; how to estimate the surface geometry given this prior; and how this surface geometry can be updated over time to reflect movement within the scene. At each stage a rigorous, Bayesian approach is taken to these problems

Los estilos APA, Harvard, Vancouver, ISO, etc.

Zou, Zhihui. "Isogeometric Shell Analysis: Multi-patch Coupling and Overcoming Locking." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8142.

Texto completo

Resumen

The fundamental advantages of applying Isogeometric Analysis (IGA) to shell analysis have been extensively demonstrated across a wide range of problems and formulations. However, a phenomenon called numerical locking is still a major challenge in IGA shell analysis, which can lead to dramatically deteriorated analysis accuracy. Additionally, for complex thin-walled structures, a simple and robust coupling technique is desired to sew together models composed of multiple patches. This dissertation focuses on addressing these challenges of IGA shell analysis. First, an isogeometric dual mortar method is developed for multi-patch coupling. This method is based on Be ?zier extraction and projection and can be employed during the creation and editing of geometry through properly modified extraction operators. It is applicable to any spline space which has a representation in Be ?zier form. The error in the method can be adaptively controlled, in some cases recovering optimal higher-order rates of convergence, by leveraging the exact refineability of the proposed dual spline basis without introducing any additional degrees-of-freedom into the linear system. This method can be used not only for shell elements but also for heat transfer and solid elements, etc. Next, a mixed formulation for IGA shell analysis is proposed that addresses both shear and membrane locking and improves the quality of computed stresses. The starting point of the formulation is the modified Hellinger-Reissner variational principle with independent displacement, membrane, and shear strains as the unknown fields. To overcome locking, the strain variables are interpolated with lower-order spline bases while the variations of the strain variables are interpolated with the proposed dual spline bases. As a result, the strain variables can be condensed out of the system with only a slight increase in the bandwidth of the resulting linear system and the condensed approach preserves the accuracy of the non-condensed mixed approach but with fewer degrees-of-freedom. Finally, as an alternative, new quadrature rules are developed to release membrane and shear locking. These quadrature rules asymptotically only require one point for Reissner-Mindlin (RM) shell elements and two points for Kirchhoff-Love (KL) shell elements in B-spline and NURBS-based isogeometric shell analysis, independent of the polynomial order p of the elements. The quadrature points are Greville abscissae and the quadrature weights are calculated by solving a linear moment fitting problem in each parametric direction. These quadrature rules are free of spurious zero-energy modes and any spurious finite-energy modes in membrane stiffness can be easily stabilized by using a higher-order Greville rule.

Los estilos APA, Harvard, Vancouver, ISO, etc.

Ocampo, Blandon Cristian Felipe. "Patch-Based image fusion for computational photography." Electronic Thesis or Diss., Paris, ENST, 2018. http://www.theses.fr/2018ENST0020.

Texto completo

Resumen

Dans de nombreuses situations, la dynamique des capteurs ou la profondeur de champ des appareils photographiques conventionnels sont insuffisantes pour capturer fidèlement des scènes naturelles. Une méthode classique pour contourner ces limitations est de fusionner des images acquises avec des paramètres de prise de vue variables. Ces méthodes nécessitent que les images soient parfaitement alignées et que les scènes soient statiques, faute de quoi des artefacts (fantômes) ou des structures irrégulières apparaissent lors de la fusion. Le but de cette thèse est de développer des techniques permettant de traiter directement des images dynamiques et non-alignées, en exploitant des mesures de similarité locales par patchs entre images.Dans la première partie de cette thèse, nous présentons une méthode pour la fusion d'images de scènes dynamiques capturées avec des temps d'exposition variables. Notre méthode repose sur l'utilisation jointe d'une normalisation de contraste, de combinaisons non-locales de patchs et de régularisations. Ceci permet de produire de manière efficace des images contrastées et bien exposées, même dans des cas difficiles (objets en mouvement, scènes non planes, déformations optiques, etc.).Dans la deuxième partie de la thèse nous proposons, toujours dans des cas dynamiques, une méthode de fusion d'images acquises avec des mises au point variables. Le cœur de notre méthode repose sur une comparaison de patchs entre images ayant des niveaux de flou variables.Nos méthodes ont été évaluées sur des bases de données classiques et sur d'autres, nouvelles, crées pour les besoins de ce travail. Les expériences montrent la robustesse des méthodes aux distortions géométriques, aux variations d'illumination et au flou. Ces méthodes se comparent favorablement à des méthodes de l'état de l'art, à un coût algorithmique moindre. En marge de ces travaux, nous analysons également la capacité de l'algorithme PatchMatch à reconstruire des images en présence de flou et de changements d'illumination, et nous proposons différentes stratégies pour améliorer ces reconstructions<br>The most common computational techniques to deal with the limited high dynamic range and reduced depth of field of conventional cameras are based on the fusion of images acquired with different settings. These approaches require aligned images and motionless scenes, otherwise ghost artifacts and irregular structures can arise after the fusion. The goal of this thesis is to develop patch-based techniques in order to deal with motion and misalignment for image fusion, particularly in the case of variable illumination and blur.In the first part of this work, we present a methodology for the fusion of bracketed exposure images for dynamic scenes. Our method combines a carefully crafted contrast normalization, a fast non-local combination of patches and different regularization steps. This yields an efficient way of producing contrasted and well-exposed images from hand-held captures of dynamic scenes, even in difficult cases (moving objects, non planar scenes, optical deformations, etc.).In a second part, we propose a multifocus image fusion method that also deals with hand-held acquisition conditions and moving objects. At the core of our methodology, we propose a patch-based algorithm that corrects local geometric deformations by relying on both color and gradient orientations.Our methods were evaluated on common and new datasets created for the purpose of this work. From the experiments we conclude that our methods are consistently more robust than alternative methods to geometric distortions and illumination variations or blur. As a byproduct of our study, we also analyze the capacity of the PatchMatch algorithm to reconstruct images in the presence of blur and illumination changes, and propose different strategies to improve such reconstructions

Los estilos APA, Harvard, Vancouver, ISO, etc.

Pan, Youguang. "Bond strength of concrete patch repairs : an evaluation of test methods and the influence of workmanship and environment." Thesis, Loughborough University, 1995. https://dspace.lboro.ac.uk/2134/7059.

Texto completo

Resumen

Experiments were carried out to study the effect of workmanship and environmental conditions on bond strength for concrete patch repairs. Four repair materials, sand/cement mortar, acrylic modified cementitious mortar, SBR modified cementitious mortar, and flowing concrete, were tested with mainly three test methods (core pull-off test, patch compressive test, and patch flexural test). At the beginning of this project, slant shear tests were also carried out. In the study of the effect of workmanship, the following parameters were included: surface roughness, surface cleanliness, surface soundness, moisture condition, application method, bond coat mistiming, repair material mistiming, and curing methods. In the study of the effect of environmental conditions, four parameters were considered: high temperature curing followed by drying shrinkage, high temperature curing followed by thermal cycling, low temperature curing, and low temperature curing followed by freeze/thaw cycling. A rougher surface produces a higher bond strength, but the increase depends on individual repair material. Sand/cement mortar favours a rough surface, but polymer modified mortars are not very sensitive to surface roughness. Environmental conditions affect the bond strength development, but the effect varies with each repair material. Test results suggest that low temperature curing should be avoided for polymer modified cementitious mortars. In addition to the experimental study, theoretical analyses were carried out to evaluate the available bond test methods. The evaluation was concentrated on answering the following questions: (1) What kind of factors will influence conductinga bond test? (2) What are the response of each factor involved to a specific test method? (3) What kind of influences are crucial in ensuring the full development of the bond strength? (4) Which factors are important to achieve a durable repair? and (5) What kind of a test can be used to monitor the quality of these crucial factors? In total, about 800 tests were conducted (500 core pull-off tests, 90 patch compressive tests, 100 patch flexural tests, and 80 slant shear tests).

Los estilos APA, Harvard, Vancouver, ISO, etc.

Bertolino, Mattias. "Extended analysis of a pseudo-spectral approach to the vortex patch problem." Thesis, Uppsala universitet, Avdelningen för beräkningsvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-354422.

Texto completo

Resumen

A prestudy indicated superior accuracy and convergence properties of apseudo-spectral method compared to a spline-based method implemented byCòrdoba et al. in 2005 when solving the &#945;-patches problem. In this thesis wefurther investigate the numerical properties of the pseudo-spectral method and makeit more robust by implementing the Nonequispaced Fast Fourier Transform. Wepresent a more detailed overview and analysis of the pseudo-spectral method and the&#945;-patches problem in general and conclude that the pseudo-spectral method issuperior in regards to accuracy in periodic settings.

Los estilos APA, Harvard, Vancouver, ISO, etc.

Brunet, Antoine Pierre. "Modélisation multi-échelle de l’effet d’un générateur solaire sur la charge électrostatique d’un satellite." Thesis, Toulouse, ISAE, 2017. http://www.theses.fr/2017ESAE0042/document.

Texto completo

Resumen

L’estimation de la charge d’un satellite et du risque de décharge nécessite dans certains cas la prise en compte dans les modèles numériques d’échelles spatiales très différentes. En particulier, les interconnecteurs présents à la surface des générateurs solaires d’un satellite sont susceptibles de modifier son équilibre électrostatique lors de missions spatiales rencontrant un environnement plasma dense. Une modélisation classique de cet effet nécessiterait le maillage d’éléments à des échelles submillimétriques,sur un satellite de plusieurs dizaines de mètres d’envergure, ce qui rendrait la simulation extrêmement onéreuse en temps de calcul. De plus, ces interconnecteurs sont parfois fortement chargés positivement par rapport à l’environnement, ce qui empêche l’application du modèle de Maxwell-Boltzmann classiquement utilisé pour les populations d’électrons. Dans une première partie, nous avons développé une méthode itérative de type Patch adaptée à la résolution du problème non-linéaire de Poisson-Boltzmann pour la simulation du plasma spatial. Cette méthode numérique multigrille permet la simulation de l’impact d’éléments de petite taille à la surface d’un satellite complet. Dans une seconde partie, nous avons développé un schéma correctif permettant d’utiliser le modèle de Maxwell-Boltzmann pour la population d’électrons, malgré la présence de surfaces satellites chargées positivement, en y ajoutant un terme de correction calculé à l’aide de la méthode Particle-in-Cell. Nous avons montré que ce schéma permet, tout en limitant le coût en calculs, de déterminer avec précision les courants collectés par les surfaces du satellites, qu’elles soient chargées négativement ou positivement<br>The numerical simulation of spacecraft charging can require to resolve widely different geometrical scales. In particular, solar array interconnects on the surface of solar panels have a major impact ona satellite electrostatic equilibrium. A classical model of this effect would require a mesh refined tosub-millimetre scales, on a spacecraft spanning several dozen metres, which would make the simulation computationally expensive. Moreover, the solar array interconnects can have a large positive potentialrelative to the space plasma, preventing the use of the classical Maxwell-Boltzmann model for theelectrons in the plasma. In a first part, we have developed an iterative patch method to solve thenonlinear Poisson-Boltzmann equation used in plasma simulations. This multigrid numerical scheme allows to resolve the impact of small-scale components on the surface of a complete spacecraft. In asecond part, we have developed a corrective scheme for the Maxwell-Boltzmann model to account for the presence of charged surfaces in the simulation. We have shown that this simple model is able to precisely compute the currents collected by the spacecraft surfaces

Los estilos APA, Harvard, Vancouver, ISO, etc.

Bin-Melha, Mohammed S. "Design and implementation of band rejected antennas using adaptive surface meshing and genetic algorithms methods. Simulation and measurement of microstrip antennas with the ability of harmonic rejection for wireless and mobile applications including the antenna design optimisation using genetic algorithms." Thesis, University of Bradford, 2013. http://hdl.handle.net/10454/6358.

Texto completo

Resumen

With the advances in wireless communication systems, antennas with different shapes and design have achieved great demand and are desirable for many uses such as personal communication systems, and other applications involving wireless communication. This has resulted in different shapes and types of antenna design in order to achieve different antenna characteristic. One attractive approach to the design of antennas is to suppress or attenuate harmonic contents due to the non-linear operation of the Radio Frequency (RF) front end. The objectives of this work were to investigate, design and implement antennas for harmonic suppression with the aid of a genetic algorithm (GA). Several microstrip patch antennas were designed to operate at frequencies 1.0, 1.8 and 2.4 GHz respectively. The microstrip patch antenna with stub tuned microstrip lines was also employed at 1.0 and 1.8 GHz to meet the design objectives. A new sensing patch technique is introduced and applied in order to find the accepted power at harmonic frequencies. The evaluation of the measured power accepted at the antenna feed port was done using an electromagnetic (EM) simulator, Ansoft Designer, in terms of current distribution. A two sensors method is presented on one antenna prototype to estimate the accepted power at three frequencies. The computational method is based on an integral equation solver using adaptive surface meshing driven by a genetic algorithm. Several examples are demonstrated, including design of coaxially-fed, air-dielectric patch antennas implanted with shorting and folded walls. The characteristics of the antennas in terms of the impedance responses and far field radiation patterns are discussed. The results in terms of the radiation performance are addressed, and compared to measurements. The presented results of these antennas show a good impedance matching at the fundamental frequency with good suppression achieved at the second and third harmonic frequencies.<br>Home government

Los estilos APA, Harvard, Vancouver, ISO, etc.

Más fuentes

Libros sobre el tema "Patch methods"

1965-, Molnar Peter, and Hickman James J, eds. Patch-clamp methods and protocols. Humana, 2007.

Buscar texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Patch-clamp methods and protocols. Humana Press, 2014.

Buscar texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Molnar, Peter, and James J. Hickman, eds. Patch-Clamp Methods and Protocols. Humana Press, 2007. http://dx.doi.org/10.1007/978-1-59745-529-9.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Molnar, Peter, and James J. Hickman, eds. Patch-Clamp Methods and Protocols. Humana Press, 2007. http://dx.doi.org/10.1007/978-1-60327-090-8.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Martina, Marzia, and Stefano Taverna, eds. Patch-Clamp Methods and Protocols. Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4939-1096-0.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

A, Levin Simon, Powell T. M, and Steele John H. 1926-, eds. Patch dynamics. Springer-Verlag, 1993.

Buscar texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Zhou, Jianwei. Geometric continuity and rectangular patch methods for surface modelling. Brunel University, 1986.

Buscar texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Electrical properties of cells: Patch clamp for biologists. Plenum Press, 1997.

Buscar texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

International Contact Dermatitis Research Group, ed. Patch testing and prick testing: A practical guide : official publication of the ICDRG. 2nd ed. Springer, 2009.

Buscar texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

1962-, Destexhe Alain, and Bal Thierry, eds. Dynamic-clamp: From principles to applications. Springer, 2009.

Buscar texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Más fuentes

Capítulos de libros sobre el tema "Patch methods"

Mosharov, Eugene V., and Manfred Lindau. "Patch Amperometry and Intracellular Patch Electrochemistry." In Methods in Molecular Biology. Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2671-9_17.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Milligan, Carol J., and Clemens Möller. "Automated Planar Patch-Clamp." In Methods in Molecular Biology. Humana Press, 2013. http://dx.doi.org/10.1007/978-1-62703-351-0_13.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Nomura, Toshihiro. "In Vitro Patch-Clamp." In Methods in Molecular Biology. Springer US, 2024. http://dx.doi.org/10.1007/978-1-0716-3810-1_19.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Kucher, Volodymyr, Benjamin A. Eaton, James D. Stockand, and Nina Boiko. "Patch-Clamping Drosophila Sensory Neurons." In Methods in Molecular Biology. Humana Press, 2013. http://dx.doi.org/10.1007/978-1-62703-351-0_30.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Brüggemann, Andrea, Cecilia Farre, Claudia Haarmann, et al. "Planar Patch Clamp: Advances in Electrophysiology." In Methods in Molecular Biology. Humana Press, 2008. http://dx.doi.org/10.1007/978-1-59745-526-8_13.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Jones, Kenneth A., Nicoletta Garbati, Hong Zhang, and Charles H. Large. "Automated Patch Clamping Using the QPatch." In Methods in Molecular Biology. Humana Press, 2009. http://dx.doi.org/10.1007/978-1-60327-258-2_10.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Linley, John E. "Perforated Whole-Cell Patch-Clamp Recording." In Methods in Molecular Biology. Humana Press, 2013. http://dx.doi.org/10.1007/978-1-62703-351-0_11.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Lippiat, Jonathan D., and David C. Wrighton. "Conventional Micropipette-Based Patch Clamp Techniques." In Methods in Molecular Biology. Humana Press, 2013. http://dx.doi.org/10.1007/978-1-62703-351-0_7.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Buades, A., and J. L. Lisani. "Patch-Based Methods for Video Denoising." In Denoising of Photographic Images and Video. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-96029-6_7.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Liu, Jie, and Peter H. Backx. "Patch-Clamp Technique in ESC-Derived Cardiomyocytes." In Methods in Molecular Biology. Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4939-1047-2_18.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Actas de conferencias sobre el tema "Patch methods"

Civerolo, M., and D. Arakaki. "Aperture coupled patch antenna design methods." In 2011 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting. IEEE, 2011. http://dx.doi.org/10.1109/aps.2011.5996415.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Brunet, Antoine, Pierre Sarrailh, François Rogier, Jean-François Roussel, and Denis Payan. "NONLINEAR PATCH METHOD AND APPLICATION." In VII European Congress on Computational Methods in Applied Sciences and Engineering. Institute of Structural Analysis and Antiseismic Research School of Civil Engineering National Technical University of Athens (NTUA) Greece, 2016. http://dx.doi.org/10.7712/100016.2384.6947.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Feng, Boyu, Jinfei Wang, and Kaizhong Zhang. "Patch-Based and Tensor-Patch-Based Dimension Reduction Methods for Hyperspectral Images." In IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium. IEEE, 2019. http://dx.doi.org/10.1109/igarss.2019.8898036.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Cadar, Cristian, Daniel Schemmel, and Arindam Sharma. "Patch Specifications via Product Programs." In 2023 IEEE/ACM 11th International Conference on Formal Methods in Software Engineering (FormaliSE). IEEE, 2023. http://dx.doi.org/10.1109/formalise58978.2023.00012.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Topcu, Berkay, and Hakan Erdogan. "Novel methods for patch-based face recognition." In 2010 IEEE 18th Signal Processing and Communications Applications Conference (SIU). IEEE, 2010. http://dx.doi.org/10.1109/siu.2010.5651081.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Kamaszuk, Monika. "Gain enhancement methods for microstrip patch antennas." In 2006 1st European Conference on Antennas and Propagation (EuCAP). IEEE, 2006. http://dx.doi.org/10.1109/eucap.2006.4584611.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Gu, Y. T. "A STUDY ON THE PATCH TEST OF POINT INTERPOLATION METHODS." In Proceedings of the 1st Asian Workshop on Meshfree Methods. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812778611_0006.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Sorg, Katharina, Larissa Heimann, Gabriela Moreira Lana, et al. "Increase of optoacoustic-induced auditory brainstem response amplitudes using an absorbing patch." In Opto-Acoustic Methods and Applications in Biophotonics, edited by Roger J. Zemp, Chulhong Kim, and Jan Laufer. SPIE, 2021. http://dx.doi.org/10.1117/12.2615926.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Zhang, Chun-Xia, Xiao-Li Wei, and Sang-Woon Kim. "Empirical Evaluation on Utilizing CNN-features for Seismic Patch Classification." In 10th International Conference on Pattern Recognition Applications and Methods. SCITEPRESS - Science and Technology Publications, 2021. http://dx.doi.org/10.5220/0010185701660173.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Yin, Huang, and Chang Cheng. "Monitoring Methods Study on the Great Pacific Ocean Garbage Patch." In 2010 International Conference on Management and Service Science (MASS 2010). IEEE, 2010. http://dx.doi.org/10.1109/icmss.2010.5577101.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Informes sobre el tema "Patch methods"

van der Stok, P., C. Bormann, and A. Sehgal. PATCH and FETCH Methods for the Constrained Application Protocol (CoAP). RFC Editor, 2017. http://dx.doi.org/10.17487/rfc8132.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

FOLEY, DANIEL, THANH-TAM Truong, Nikta Amiri, et al. Evaluation of Flaw Detection with SLDV Methods Before/After Mechanical Patch. Office of Scientific and Technical Information (OSTI), 2023. http://dx.doi.org/10.2172/2202350.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Minion, Michael Lee. Two methods for the study of vortex patch evolution on locally refined grids. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10165790.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Silks, III, Louis A. Methods for transfer a saliva based alcohol content test to a dermal patch. Office of Scientific and Technical Information (OSTI), 2017. http://dx.doi.org/10.2172/1338719.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Cheng, Peng, James V. Krogmeier, Mark R. Bell, Joshua Li, and Guangwei Yang. Detection and Classification of Concrete Patches by Integrating GPR and Surface Imaging. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317320.

Texto completo

Resumen

This research considers the detection, location, and classification of patches in concrete and asphalt-on-concrete pavements using data taken from ground penetrating radar (GPR) and the WayLink 3D Imaging System. In particular, the project seeks to develop a patching table for “inverted-T” patches. A number of deep neural net methods were investigated for patch detection from 3D elevation and image observation, but the success was inconclusive, partly because of a dearth of training data. Later, a method based on thresholding IRI values computed on a 12-foot window was used to localize pavement distress, particularly as seen by patch settling. This method was far more promising. In addition, algorithms were developed for segmentation of the GPR data and for classification of the ambient pavement and the locations and types of patches found in it. The results so far are promising but far from perfect, with a relatively high rate of false alarms. The two project parts were combined to produce a fused patching table. Several hundred miles of data was captured with the Waylink System to compare with a much more limited GPR dataset. The primary dataset was captured on I-74. A software application for MATLAB has been written to aid in automation of patch table creation.

Los estilos APA, Harvard, Vancouver, ISO, etc.

Texto completo

Resumen

Los estilos APA, Harvard, Vancouver, ISO, etc.

Bruce. L52273 Internal Repair of Pipelines. Pipeline Research Council International, Inc. (PRCI), 2005. http://dx.doi.org/10.55274/r0010287.

Texto completo

Resumen

External, corrosion-caused loss of wall thickness is the most common cause of repair for gas transmission pipelines. To prevent an area of corrosion damage from causing a pipeline to rupture, the area containing the corrosion damage must be reinforced. Since corrosion is a time dependent process, as pipelines become older, more repairs are required. Repair methods that can be applied from the inside of a gas transmission pipeline (i.e., trenchless methods) are an attractive alternative to conventional repair methods since pipeline excavation is precluded. This is particularly true for pipelines in environmentally sensitive and highly populated areas. Hydrostatic pressure testing was conducted on pipe sections with simulated corrosion damage repaired with glass fiber-reinforced composite liners, carbon fiber-reinforced composite liners, weld deposition, an adhesively bonded steel patch, and adhesively bonded/helically wound steel strip. To benchmark pipeline material performance, additional pipe sections were evaluated in the virgin and in the corrosion damaged/un-repaired conditions. Three repair technologies exhibited burst pressures that were greater than the burst pressures of the un-repaired pipe sections: adhesively bonded/helically wound steel strip repair exhibited the highest performance with burst pressures ranging from 0.4% to 144% higher; carbon fiber-reinforced liner repair had burst pressures ranging from 4% to 17% higher; and glass fiber-reinforced liner repair had burst pressures ranging from 1% to 7% higher. Two repair technologies exhibited burst pressures that were lower than the burst pressures of the un-repaired pipe sections: adhesively bonded steel patch repair was 1% lower and weld deposition repair was10% lower.

Los estilos APA, Harvard, Vancouver, ISO, etc.

Dusseault, L., and J. Snell. PATCH Method for HTTP. RFC Editor, 2010. http://dx.doi.org/10.17487/rfc5789.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Chen, Ben, Mark Cunningham, David Grabaskas, Bruce Hamilton, and Sinem Perk. Success Path Method: Implementation Guidance. Office of Scientific and Technical Information (OSTI), 2022. http://dx.doi.org/10.2172/1902326.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Young, Jeffrey L. Development of a Characteristic-Based Finite Volume Method for Patch Antennas. Defense Technical Information Center, 1999. http://dx.doi.org/10.21236/ada381667.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

Ofrecemos descuentos en todos los planes premium para autores cuyas obras están incluidas en selecciones literarias temáticas. ¡Contáctenos para obtener un código promocional único!