Relevant bibliographies by topics / Inverted reflector

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Inverted reflector'

Author: Grafiati
Published: 4 June 2021
Last updated: 9 February 2022

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Journal articles on the topic "Inverted reflector"

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Desta, Derese, Rita Rizzoli, Caterina Summonte, Rui N. Pereira, Arne Nylandsted Larsen, Peter Balling, and Sanjay K. Ram. "Nanomolded buried light-scattering (BLiS) back-reflectors using dielectric nanoparticles for light harvesting in thin-film silicon solar cells." EPJ Photovoltaics 11 (2020): 2. http://dx.doi.org/10.1051/epjpv/2019011.

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The article presents a nanoparticle-based buried light-scattering (BLiS) back-reflector design realized through a simplified nanofabrication technique for the purpose of light-management in solar cells. The BLiS structure consists of a flat silver back-reflector with an overlying light-scattering bilayer which is made of a TiO2 dielectric nanoparticles layer with micron-sized inverted pyramidal cavities, buried under a flat-topped silicon nanoparticles layer. The optical properties of this BLiS back-reflector show high broadband and wide angular distribution of diffuse light-scattering. The efficient light-scattering by the buried inverted pyramid back-reflector is shown to effectively improve the short-circuit-current density and efficiency of the overlying n-i-p amorphous silicon solar cells up to 14% and 17.5%, respectively, compared to the reference flat solar cells. A layer of TiO2 nanoparticles with exposed inverted pyramid microstructures shows equivalent light scattering but poor fill factors in the solar cells, indicating that the overlying smooth growth interface in the BLiS back-reflector helps to maintain a good fill factor. The study demonstrates the advantage of spatial separation of the light-trapping and the semiconductor growth layers in the photovoltaic back-reflector without sacrificing the optical benefit.
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Yatsyshen, V. V., and A. Yu Gordeev. "Electrodynamic target selection techniques." Journal of «Almaz – Antey» Air and Space Defence Corporation, no. 1 (March 30, 2016): 61–68. http://dx.doi.org/10.38013/2542-0542-2016-1-61-68.

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We examine a new electrodynamic approach to target selection. The study shows that in the case of p-polarisation, a topological portrait of two types of angle reflectors is in a certain sense inverted in relation to that of the s-polarisation case, and consequently, evident polarisation dependence of angle reflector topological portraits may be traced.
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Park, Kibeom, Jingon Joung, Sungjoon Lim, and Han Lim Lee. "A Compact Crossed Inverted-V Antenna with a Common Reflector for Polarization Diversity in the IoT." Electronics 8, no. 6 (June 6, 2019): 637. http://dx.doi.org/10.3390/electronics8060637.

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This article presented a compact and high gain antenna with reconfigurable polarization based on two inverted-V dipoles fabricated in a crossed configuration, and with a common planar reflector. The proposed antenna could generate four different types of polarizations, such as vertical polarization (VP), horizontal polarization (HP), right-hand circular polarization (RHCP), and left-hand circular polarization (LHCP). A pair of inverted-V dipoles drove the polarization diversity, where each dipole had an integrated matching circuit and a microstrip balun. Using a crossed inverted-V configuration with a ground plane as the common reflector, we could achieve compactness in size, high directivity, and a wider beamwidth than a normal dipole antenna. To verify the performance of the proposed antenna, we fabricated a sub-6GHz antenna with a Taconic TLX-9 substrate, which had a relative permittivity of 2.5. The proposed antenna showed a measured 10-dB impedance bandwidth of 752 MHz (5.376 GHz to 6.128 GHz). The peak gains for the VP, HP, RHCP and LHCP operations at 5.8 GHz were about 5.2 dBi, 4.61 dBi, 5.25 dBic, and 5.51 dBic, respectively. In addition, the half-power beamwidth (HPBW) for all the polarizations were greater than 78° in the operation band.
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Zhang, Dan-Dan, Xiao-Chen Jiang, Rong Wang, Hao-Jun Xie, Guo-Fu Ma, Qing-Dong Ou, Yuan-Li Chen, Yan-Qing Li, and Jian-Xin Tang. "Enhanced Performance of Semitransparent Inverted Organic Photovoltaic Devices via a High Reflector Structure." ACS Applied Materials & Interfaces 5, no. 20 (October 4, 2013): 10185–90. http://dx.doi.org/10.1021/am402872u.

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Stunff, Yves Le, Vladimir Grechka, and Ilya Tsvankin. "Depth‐domain velocity analysis in VTI media using surface P-wave data: Is it feasible?" GEOPHYSICS 66, no. 3 (May 2001): 897–903. http://dx.doi.org/10.1190/1.1444979.

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The main difficulties in anisotropic velocity analysis and inversion using surface seismic data are associated with the multiparameter nature of the problem and inherent trade‐offs between the model parameters. For the most common anisotropic model, transverse isotropy with a vertical symmetry axis (VTI media), P-wave kinematic signatures are controlled by the vertical velocity V0 and the anisotropic parameters ε and δ. However, only two combinations of these parameters—NMO velocity from a horizontal reflector Vnmo(0) and the anellipticity coefficient η—can be determined from P-wave reflection traveltimes if the medium above the reflector is laterally homogeneous. While Vnmo(0) and η are sufficient for time‐domain imaging in VTI media, they cannot be used to resolve the vertical velocity and build velocity models needed for depth migration. Here, we demonstrate that P-wave reflection data can be inverted for all three relevant VTI parameters (V0, ε and δ) if the model contains nonhorizontal intermediate interfaces. Using anisotropic reflection tomography, we carry out parameter estimation for a two‐layer medium with a curved intermediate interface and reconstruct the correct anisotropic depth model. To explain the success of this inversion procedure, we present an analytic study of reflection traveltimes for this model and show that the information about the vertical velocity and reflector depth was contained in the reflected rays which crossed the dipping intermediate interface. The results of this work are especially encouraging because the need for depth imaging (such as prestack depth migration) arises mostly in laterally heterogeneous media. Still, we restricted this study to a relatively simple model and constrained the inversion by assuming that one of the layers is isotropic. In general, although lateral heterogeneity does create a dependence of P-wave reflection traveltimes on the vertical velocity, there is no guarantee that for more complicated models all anisotropic parameters can be resolved in a unique fashion.
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Grechka, Vladimir, and Ilya Tsvankin. "3-D description of normal moveout in anisotropic inhomogeneous media." GEOPHYSICS 63, no. 3 (May 1998): 1079–92. http://dx.doi.org/10.1190/1.1444386.

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We present a new equation for normal‐moveout (NMO) velocity that describes azimuthally dependent reflection traveltimes of pure modes from both horizontal and dipping reflectors in arbitrary anisotropic inhomogeneous media. With the exception of anomalous areas such as those where common‐midpoint (CMP) reflection time decreases with offset, the azimuthal variation of NMO velocity represents an ellipse in the horizontal plane, with the orientation of the axes determined by the properties of the medium and the direction of the reflector normal. In general, a minimum of three azimuthal measurements is necessary to reconstruct the best‐fit ellipse and obtain NMO velocity in all azimuthal directions. This result provides a simple way to correct for the azimuthal variation in stacking velocity often observed in 3-D surveys. Even more importantly, analytic expressions for the parameters of the NMO ellipse can be used in the inversion of moveout data for the anisotropic coefficients of the medium. For homogeneous transversely isotropic media with a vertical axis of symmetry (VTI media), our equation for azimuthally dependent NMO velocity from dipping reflectors becomes a relatively simple function of phase velocity and its derivatives. We show that the zero‐dip NMO velocity Vnmo(0) and the anisotropic coefficient η are sufficient to describe the P-wave NMO velocity for any orientation of the CMP line with respect to the dip plane of the reflector. Using our formalism, Vnmo(0) and η (the only parameters needed for time processing) can be found from the dip‐dependent NMO velocity at any azimuth or, alternatively, from the azimuthally dependent NMO for a single dipping reflector. We also apply this theory to more complicated azimuthally anisotropic models with the orthorhombic symmetry used to describe fractured reservoirs. For reflections from horizontal interfaces in orthorhombic media, the axes of the normal moveout ellipse are aligned with the vertical symmetry planes. Therefore, azimuthal P-wave moveout measurements can be inverted for the orientation of the symmetry planes (typically determined by the fracture direction) and the NMO velocities within them. If the vertical velocity is known, symmetry‐plane NMO velocities make it possible to estimate two anisotropic parameters equivalent to Thomsen’s coefficient δ for transversely isotropic media.
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Islam, Mohammad, Md Ullah, Touhidul Alam, Mandeep Singh, and Mengu Cho. "Microwave Imaging Sensor Using Low Profile Modified Stacked Type Planar Inverted F Antenna." Sensors 18, no. 9 (September 5, 2018): 2949. http://dx.doi.org/10.3390/s18092949.

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Microwave imaging is the technique to identify hidden objects from structures using electromagnetic waves that can be applied in medical diagnosis. The change of dielectric property can be detected using microwave antenna sensor, which can lead to localization of abnormality in the human body. This paper presents a stacked type modified Planar Inverted F Antenna (PIFA) as microwave imaging sensor. Design and performance analysis of the sensor antenna along with computational and experimental analysis to identify concealed object has been investigated in this study. The dimension of the modified PIFA radiating patch is 40 × 20 × 10 mm3. The reflector walls used, are 45 mm in length and 0.2-mm-thick inexpensive copper sheet is considered for the simulation and fabrication which addresses the problems of high expenses in conventional patch antenna. The proposed antenna sensor operates at 1.55–1.68 GHz where the maximum realized gain is 4.5 dB with consistent unidirectional radiation characteristics. The proposed sensor antenna is used to identify tumor in a computational human tissue phantom based on reflection and transmission coefficient. Finally, an experiment has been performed to verify the antenna’s potentiality of detecting abnormality in realistic breast phantom.
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Sinha, Mrinal, and Gerard T. Schuster. "Interferometric full-waveform inversion." GEOPHYSICS 84, no. 1 (January 1, 2019): R45—R60. http://dx.doi.org/10.1190/geo2018-0047.1.

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Velocity errors in the shallow part of the velocity model can lead to erroneous estimates of the full-waveform inversion (FWI) tomogram. If the location and topography of a reflector are known, then such a reflector can be used as a reference reflector to update the underlying velocity model. Reflections corresponding to this reference reflector are windowed in the data space. Windowed reference reflections are then crosscorrelated with reflections from deeper interfaces, which leads to partial cancellation of static errors caused by the overburden above the reference interface. Interferometric FWI (IFWI) is then used to invert the tomogram in the target region, by minimizing the normalized waveform misfit between the observed and predicted crosscorrelograms. Results with synthetic and field data with static errors above the reference interface indicate that an accurate tomogram can be inverted in areas lying within several wavelengths of the reference interface. IFWI can also be applied to synthetic time-lapse data to mitigate the nonrepeatability errors caused by time-varying overburden variations. The synthetic- and field-data examples demonstrate that IFWI can provide accurate tomograms when the near surface is ridden with velocity errors.
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YAMAMOTO, Kazuhisa, Kiminori MIZUUCHI, Hisako HARA, Yasuo KITAOKA, and Makoto KATO. "Frequency Doubling of a Laser Diode Using a Domain-Inverted LiTaO3Waveguide with a Monolithic Bragg Reflector." Optical Review 1, no. 1 (November 1994): 88–90. http://dx.doi.org/10.1007/s10043-994-0088-1.

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Ordoñez, Alba, Walter Söllner, Tilman Klüver, and Leiv J. Gelius. "Subsurface reflectivity estimation from imaging of primaries and multiples using amplitude-normalized separated wavefields." GEOPHYSICS 81, no. 3 (May 2016): S101—S117. http://dx.doi.org/10.1190/geo2015-0385.1.

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Several studies have shown the benefits of including multiple reflections together with primaries in the structural imaging of subsurface reflectors. However, to characterize the reflector properties, there is a need to compensate for propagation effects due to multiple scattering and to properly combine the information from primaries and all orders of multiples. From this perspective and based on the wave equation and Rayleigh’s reciprocity theorem, recent works have suggested computing the subsurface image from the Green’s function reflection response (or reflectivity) by inverting a Fredholm integral equation in the frequency-space domain. By following Claerbout’s imaging principle and assuming locally reacting media, the integral equation may be reduced to a trace-by-trace deconvolution imaging condition. For a complex overburden and considering that the structure of the subsurface is angle-dependent, this trace-by-trace deconvolution does not properly solve the Fredholm integral equation. We have inverted for the subsurface reflectivity by solving the matrix version of the Fredholm integral equation at every subsurface level, based on a multidimensional deconvolution of the receiver wavefields with the source wavefields. The total upgoing pressure and the total filtered downgoing vertical velocity were used as receiver and source wavefields, respectively. By selecting appropriate subsets of the inverted reflectivity matrix and by performing an inverse Fourier transform over the frequencies, the process allowed us to obtain wavefields corresponding to virtual sources and receivers located in the subsurface, at a given level. The method has been applied on two synthetic examples showing that the computed reflectivity wavefields are free of propagation effects from the overburden and thus are suited to extract information of the image point location in the angular and spatial domains. To get the computational cost down, our approach is target-oriented; i.e., the reflectivity may only be computed in the area of most interest.
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Dissertations / Theses on the topic "Inverted reflector"

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Mas, Baixeras Albert. "Optimization of inverse reflector design." Doctoral thesis, Universitat de Girona, 2011. http://hdl.handle.net/10803/22705.

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Aquesta tesi presenta un nou mètode pel disseny invers de reflectors. Ens hem centrat en tres temes principals: l’ús de fonts de llum reals i complexes, la definició d’un algoritme ràpid pel càlcul de la il•luminació del reflector, i la definició d’un algoritme d’optimització per trobar més eficientment el reflector desitjat. Les fonts de llum estan representades per models near-field, que es comprimeixen amb un error molt petit, fins i tot per fonts de llum amb milions de raigs i objectes a il•luminar molt propers. Llavors proposem un mètode ràpid per obtenir la distribució de la il•luminació d’un reflector i la seva comparació amb la il•luminació desitjada, i que treballa completament en la GPU. Finalment, proposem un nou mètode d’optimització global que permet trobar la solució en menys passos que molts altres mètodes d’optimització clàssics, i alhora evitant mínims locals.
This thesis presents new methods for the inverse reflector design problem. We have focused on three main topics: the use of real and complex light sources, the definition of a fast lighting simulation algorithm to compute the reflector lighting, and the definition of an optimization algorithm to more efficiently find the desired reflector. The light sources are represented by near-field datasets, that are compressed with a low error, even with millions of rays and for very close objects. Then, we propose a fast method to obtain the outgoing light distribution of a reflector and the comparison with the desired one, working completely in the GPU. Finally, a new global optimization method is proposed to search the solution in less steps than most other classic optimization methods, also avoiding local minima.
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Blazek, Kirk. "The one-dimensional inverse problem of reflection seismology on a viscoacoustic medium /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/5725.

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Kulkarni, Mandar S. "Multi-coefficient Dirichlet Neumann type elliptic inverse problems with application to reflection seismology." Birmingham, Ala. : University of Alabama at Birmingham, 2009. https://www.mhsl.uab.edu/dt/2010r/kulkarni.pdf.

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Thesis (Ph. D.)--University of Alabama at Birmingham, 2009.
Title from PDF t.p. (viewed July 21, 2010). Additional advisors: Thomas Jannett, Tsun-Zee Mai, S. S. Ravindran, Günter Stolz, Gilbert Weinstein. Includes bibliographical references (p. 59-64).
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Shin, Chang Soo. "Nonlinear elastic wave inversion by blocky parameterization /." Access abstract and link to full text, 1988. http://0-wwwlib.umi.com.library.utulsa.edu/dissertations/fullcit/8810420.

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Calandra, Henri. "Etude numérique du problème inverse en sismique réflexion." Pau, 1987. http://www.theses.fr/1987PAUU3023.

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Pour effectuer cette étude, on minimise par une méthode de gradient d'un critère quantifiant l'écart entre pressions exactes et pressions calculées. On pressent les équations utilisées (équations des ondes acoustiques), le cadre fonctionnel et la résolution numérique. Une deuxième partie consiste à établir une étude numérique d'un schéma de résolution de l'équation des ondes plus adapté au cas stratifié que nous appliquons à notre problème.
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Alakel, Abazid Mohammad [Verfasser], and Alfred K. [Akademischer Betreuer] Louis. "Optimal design of anti-reflection coatings for solar cells using the method of the approximate inverse and its extension / Mohammad Alakel Abazid. Betreuer: Alfred K. Louis." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2014. http://d-nb.info/1054054738/34.

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Archid, Atika. "Méthodes par blocs adaptées aux matrices structurées et au calcul du pseudo-inverse." Thesis, Littoral, 2013. http://www.theses.fr/2013DUNK0394/document.

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Nous nous intéressons dans cette thèse, à l'étude de certaines méthodes numériques de type krylov dans le cas symplectique, en utilisant la technique de blocs. Ces méthodes, contrairement aux méthodes classiques, permettent à la matrice réduite de conserver la structure Hamiltonienne ou anti-Hamiltonienne ou encore symplectique d'une matrice donnée. Parmi ces méthodes, nous nous sommes intéressés à la méthodes d'Arnoldi symplectique par bloc que nous appelons aussi bloc J-Arnoldi. Notre but essentiel est d’étudier cette méthode de façon théorique et numérique, sur la nouvelle structure du K-module libre ℝ²nx²s avec K = ℝ²sx²s où s ≪ n désigne la taille des blocs utilisés. Un deuxième objectif est de chercher une approximation de l'epérateur exp(A)V, nous étudions en particulier le cas où A est une matrice réelle Hamiltonnienne et anti-symétrique de taille 2n x 2n et V est une matrice rectangulaire ortho-symplectique de taille 2n x 2s sur le sous-espace de Krylov par blocs Km(A,V) = blockspan {V,AV,...,Am-1V}, en conservant la structure de la matrice V. Cette approximation permet de résoudre plusieurs problèmes issus des équations différentielles dépendants d'un paramètre (EDP) et des systèmes d'équations différentielles ordinaires (EDO). Nous présentons également une méthode de Lanczos symplectique par bloc, que nous nommons bloc J-Lanczos. Cette méthode permet de réduire une matrice structurée sous la forme J-tridiagonale par bloc. Nous proposons des algorithmes basés sur deux types de normalisation : la factorisation S R et la factorisation Rj R. Dans une dernière partie, nous proposons un algorithme qui généralise la méthode de Greville afin de déterminer la pseudo inverse de Moore-Penros bloc de lignes par bloc de lignes d'une matrice rectangulaire de manière itérative. Nous proposons un algorithme qui utilise la technique de bloc. Pour toutes ces méthodes, nous proposons des exemples numériques qui montrent l'efficacité de nos approches
We study, in this thesis, some numerical block Krylov subspace methods. These methods preserve geometric properties of the reduced matrix (Hamiltonian or skew-Hamiltonian or symplectic). Among these methods, we interest on block symplectic Arnoldi, namely block J-Arnoldi algorithm. Our main goal is to study this method, theoretically and numerically, on using ℝ²nx²s as free module on (ℝ²sx²s, +, x) with s ≪ n the size of block. A second aim is to study the approximation of exp (A)V, where A is a real Hamiltonian and skew-symmetric matrix of size 2n x 2n and V a rectangular matrix of size 2n x 2s on block Krylov subspace Km (A, V) = blockspan {V, AV,...Am-1V}, that preserve the structure of the initial matrix. this approximation is required in many applications. For example, this approximation is important for solving systems of ordinary differential equations (ODEs) or time-dependant partial differential equations (PDEs). We also present a block symplectic structure preserving Lanczos method, namely block J-Lanczos algorithm. Our approach is based on a block J-tridiagonalization procedure of a structured matrix. We propose algorithms based on two normalization methods : the SR factorization and the Rj R factorization. In the last part, we proposea generalized algorithm of Greville method for iteratively computing the Moore-Penrose inverse of a rectangular real matrix. our purpose is to give a block version of Greville's method. All methods are completed by many numerical examples
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"Optimization of Back Reflectors for Bifacial Photovoltaic Modules." Master's thesis, 2019. http://hdl.handle.net/2286/R.I.53954.

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abstract: Demand for green energy alternatives to provide stable and reliable energy solutions has increased over the years which has led to the rapid expansion of global markets in renewable energy sources such as solar photovoltaic (PV) technology. Newest amongst these technologies is the Bifacial PV modules, which harvests incident radiation from both sides of the module. The overall power generation can be significantly increased by using these bifacial modules. The purpose of this research is to investigate and maximize the effect of back reflectors, designed to increase the efficiency of the module by utilizing the intercell light passing through the module to increase the incident irradiance, on the energy output using different profiles placed at varied distances from the plane of the array (POA). The optimum reflector profile and displacement of the reflector from the module are determined experimentally. Theoretically, a 60-cell bifacial module can produce 26% additional energy in comparison to a 48-cell bifacial module due to the 12 excess cells found in the 60-cell module. It was determined that bifacial modules have the capacity to produce additional energy when optimized back reflectors are utilized. The inverted U reflector produced higher energy gain when placed at farther distances from the module, indicating direct dependent proportionality between the placement distance of the reflector from the module and the output energy gain. It performed the best out of all current construction geometries with reflective coatings, generating more than half of the additional energy produced by a densely-spaced 60-cell benchmark module compared to a sparsely-spaced 48-cell reference module.ii A gain of 11 and 14% was recorded on cloudy and sunny days respectively for the inverted U reflector. This implies a reduction in the additional cells of the 60-cell module by 50% can produce the same amount of energy of the 60-cell module by a 48-cell module with an inverted U reflector. The use of the back reflectors does not only affect the additional energy gain but structural and land costs. Row to row spacing for bifacial systems(arrays) is reduced nearly by half as the ground height clearance is largely minimized, thus almost 50% of height constraints for mounting bifacial modules, using back reflectors resulting in reduced structural costs for mounting of bifacial modules
Dissertation/Thesis
Masters Thesis Mechanical Engineering 2019
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"Approximate Multi-Parameter Inverse Scattering Using Pseudodifferential Scaling." Thesis, 2011. http://hdl.handle.net/1911/70367.

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I propose a computationally efficient method to approximate the inverse of the normal operator arising in the multi-parameter linearized inverse problem for reflection seismology in two and three spatial dimensions. Solving the inverse problem using direct matrix methods like Gaussian elimination is computationally infeasible. In fact, the application of the normal operator requires solving large scale PDE problems. However, under certain conditions, the normal operator is a matrix of pseudodifferential operators. This manuscript shows how to generalize Cramer's rule for matrices to approximate the inverse of a matrix of pseudodifferential operators. Approximating the solution to the normal equations proceeds in two steps: (1) First, a series of applications of the normal operator to specific permutations of the right hand side. This step yields a phase-space scaling of the solution. Phase space scalings are scalings in both physical space and Fourier space. Second, a correction for the phase space scaling. This step requires applying the normal operator once more. The cost of approximating the inverse is a few applications of the normal operator (one for one parameter, two for two parameters, six for three parameters). The approximate inverse is an adequately accurate solution to the linearized inverse problem when it is capable of fitting the data to a prescribed precision. Otherwise, the approximate inverse of the normal operator might be used to precondition Krylov subspace methods in order to refine the data fit. I validate the method on a linearized version of the Marmousi model for constant density acoustics for the one-parameter problem. For the two parameter problem, the inversion of a variable density acoustics layered model corroborates the success of the proposed method. Furthermore, this example details the various steps of the method. I also apply the method to a 1D section of the Marmousi model to test the behavior of the method on complex two-parameter layered models.
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Alemie, Wubshet M. "Regularization of the AVO inverse problem by means of a multivariate Cauchy probability distribution." Master's thesis, 2010. http://hdl.handle.net/10048/914.

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Thesis (M. Sc.)--University of Alberta, 2010.
Title from pdf file main screen (viewed on Mar. 18, 2010). A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Master of Science in Geophysics, Department of Physics, University of Alberta. Includes bibliographical references.
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Books on the topic "Inverted reflector"

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Seismic inverse Q filtering. Malden, MA: Blackwell Pub., 2008.

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Dimri, Vijay. Deconvolution and inverse theory: Application to geophysicalproblems. London: Elsevier, 1992.

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Deconvolution and inverse theory: Application to geophysical problems. Amsterdam: Elsevier, 1992.

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B, Weglein Arthur, ed. Seismic imaging and inversion: Application of linear inverse theory. Cambridge: Cambridge University Press, 2012.

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Geophysical data analysis: Understanding inverse problem theory and practice. Tulsa, OK: Society of Exploration Geophysicists, 1994.

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Simoncini, Andrea, ed. La semplificazione in Toscana. Florence: Firenze University Press, 2011. http://dx.doi.org/10.36253/978-88-6453-239-4.

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The need for reform in Italian Public Administration is a fact that no longer calls for justification: the increasing divergence between expectations and performance in the public sector appears to expand in inverse proportion to the success rate of the attempts at reform that have successively been made since the 1990s. Taking this reflection as its cue, the book offers the results of a study inspired by the Tuscan regional law 40/2009, exploring the results and prospects of the process of administrative and regulatory simplification, at both national and regional level. The chosen key, which is crucially interdisciplinary, for the very first time probes the profound meshing of legal and economic aspects, offering elements not only of analysis but also of practical application.
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Bleistein, N., J. K. Cohen, and John W. Jr Stockwell. Mathematics of Multidimensional Seismic Imaging, Migration, and Inversion. Springer, 2013.

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Bleistein, N. Mathematics of Multidimensional Seismic Imaging, Migration, and Inversion. Springer, 2013.

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Mathematics of Multidimensional Seismic Imaging, Migration, and Inversion (Interdisciplinary Applied Mathematics, V. 13.). Springer, 2000.

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Wang, Yanghua. Seismic Inverse Q Filtering. Wiley & Sons, Incorporated, John, 2009.

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Book chapters on the topic "Inverted reflector"

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Lekner, John. "Inverse Problems." In Theory of Reflection, 265–80. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-23627-8_11.

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Bleistein, Norman. "Inverse methods for reflector imaging." In Ordinary and Partial Differential Equations, 68–76. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/bfb0074716.

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Engl, Heinz W., and Andreas Neubauer. "Reflector Design as an Inverse Problem." In Proceedings of the Fifth European Conference on Mathematics in Industry, 13–24. Wiesbaden: Vieweg+Teubner Verlag, 1991. http://dx.doi.org/10.1007/978-3-663-01312-9_2.

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Lekner, John. "Inverse problems." In Theory of Reflection of Electromagnetic and Particle Waves, 179–89. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-015-7748-9_9.

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Lesnic, Daniel. "Anti-Reflection Coatings." In Inverse Problems with Applications in Science and Engineering, 261–74. Boca Raton: Chapman and Hall/CRC, 2021. http://dx.doi.org/10.1201/9780429400629-13.

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Maes, Maurice. "Mathematical Methods for 2D Reflector Design." In Proceedings of the Conference Inverse Problems and Optimal Design in Industry, 123–46. Wiesbaden: Vieweg+Teubner Verlag, 1994. http://dx.doi.org/10.1007/978-3-322-96658-2_7.

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Gutiérrez, Cristian E., and Ahmad Sabra. "The Reflector Problem and the Inverse Square Law." In Geometric Methods in PDE’s, 269–86. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-02666-4_15.

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Kurasov, P. B. "On the inverse scattering problem for rational reflection coefficients." In Inverse Problems in Mathematical Physics, 126–33. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/3-540-57195-7_14.

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Weston, V. H. "Wave Splitting and the Reflection Operator for the Wave Equation." In Inverse Problems and Theoretical Imaging, 227–38. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-75298-8_29.

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Thiel, Manfred A. F. "Polarization Measurements in Radioastronomy: Determination of the Polarization — Reflection — Matrix." In Inverse Methods in Electromagnetic Imaging, 573–75. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-010-9444-3_33.

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Conference papers on the topic "Inverted reflector"

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Karlina, L. B., M. M. Kulagina, N. Kh Timoshina, A. S. Vlasov, and V. M. Andreev. "In0.53Ga0.47As/InP conventional and inverted thermophotovoltaic cells with back surface reflector." In THERMOPHOTOVOLTAIC GENERATION OF ELECTRICITY: TPV7: Seventh World Conference on Thermophotovoltaic Generation of Electricity. AIP, 2007. http://dx.doi.org/10.1063/1.2711735.

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Nakano, H., Y. Asano, G. Tsutsumi, and J. Yamauchi. "A Low-Profile Inverted F Element Array Backed by an EBG Reflector." In 2006 IEEE Antennas and Propagation Society International Symposium. IEEE, 2006. http://dx.doi.org/10.1109/aps.2006.1711235.

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Torla, A. Lutfi, and Salam K. Khamas. "Near-Field Intensity Enhancement of a nano-antenna above an inverted Bragg Reflector." In 2017 International Workshop on Antenna Technology: Small Antennas, Innovative Structures, and Applications (iWAT). IEEE, 2017. http://dx.doi.org/10.1109/iwat.2017.7915386.

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Duzdar, Ayman, and Gunter Kompa. "A Novel Inverted Trapezoidal Antenna Fed by a Ground Image Plane and Backed by a Reflector." In 2000 30th European Microwave Conference. IEEE, 2000. http://dx.doi.org/10.1109/euma.2000.338754.

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Shams, N., M. Mc Keever, S. Mc Cormack, and B. Norton. "Design and Experiment of a Concentrating Transpired Air Heating System." In ASME 2011 5th International Conference on Energy Sustainability. ASMEDC, 2011. http://dx.doi.org/10.1115/es2011-54114.

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This paper presents the physical design and experiments of the Concentrating Transpired Air Heating (CTAH) system as a combination of subsystems of parabolic primary and circular secondary reflector that concentrates incident solar radiation onto an inverted perforated absorber. Optical efficiency of the CTAH system has been analysed using a 2D ray tracing model. Experiments have been carried out for 50% perforated black painted aluminium inverted absorber for glazed and unglazed systems. Results show a significant temperature rise of the absorber surface in both cases. The maximum temperature of the absorber for the unglazed system is 52.1°C at 22.5°C ambient temperature, where as for the covered system, it is 67.9°C at 23.2°C ambient temperature.
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Conlon, William M., Pete Johnson, and Robert Hanson. "Superheated Steam From CLFR Solar Steam Generators." In ASME 2011 Power Conference collocated with JSME ICOPE 2011. ASMEDC, 2011. http://dx.doi.org/10.1115/power2011-55174.

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AREVA Solar has designed, constructed and demonstrated the first successful Once Through Solar Steam Generator (SSG) to deliver superheated steam without intermediate heat transfer fluids. Deployed at the Kimberlina Solar Thermal Power Station, SSG4 represents the state of the art for solar steam production, for stand-alone power generation and augmentation of fossil fueled steam cycles. The ASME Section I boiler was designed, constructed, stamped and commissioned during 2010, and includes a novel Model Predictive Control system capable of maintaining any two of three steam conditions (flow, pressure, temperature) under varying solar input. During field trials in September 2010, exit steam conditions were maintained at 60 +/− 3 bar and 370 +/− 20C during steady and transient conditions, while steam flow consistently exceeded predictions. In a “lights-out” test, simulating complete instantaneous cloud cover, SSG4 had sufficient thermal inertia to supply more than 18 minutes of superheated steam. AREVA Solar’s SSGs incorporate a 400m long tube bundle within an elevated insulated cavity receiver, onto which sunlight is concentrated by reflectors. The multi-pass tube bundle arranges superheater tubes in the high flux regions, and economizer/evaporator tubes in lower flux regions. This assures sufficient heat flux to sustain superheated steam temperatures throughout the operating day, and also reduces the average bundle temperature to reduce radiant heat losses. Boiler tubes were prepared in AREVA Solar’s factory to improve their absorption of solar energy and reduce radiant heat losses. The inverted cavity maintains a stagnant air layer between the tube bundle and a glass cover below the boiler tube supports, to reduce convective heat loss. SSG4 was designed for a Maximum Allowable Working Pressure of 105 bara, and a Maximum Mean Wall Temperature of 482C in the superheater section. AREVA Solar is the first Concentrated Solar Power provider with an ASME “S” Stamp and National Board authorization. Following the initial trials at 370C, the SSG is expected to operate at 450C superheated steam temperature. This paper describes the design, construction, commissioning, and testing of the Compact Linear Fresnel Reflector (CLFR) SSG4.
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Tokunaga, Atsushi, Gyoko Nagayama, and Takaharu Tsuruta. "A Study on Inverted Temperature Profile Based on Nonequilibrium Molecular Dynamics Simulation." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22801.

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Problem of the inverted temperature profile in condensation has been discussed at length in kinetic theory. The possible occurrence of the inverted temperature profile raised serious doubts about the validity of the previous theory, because the result seemed physically unreasonable. In this study, nonequilibrium molecular dynamics (NEMD) simulation with two facing surfaces of evaporation and condensation is carried out in order to obtain further evidence for the occurrence of the inverted temperature profile. Heat and mass transfer rates across the liquid-vapor interface during the condensation of argon are calculated for different nonequilibrium conditions given by changing the temperature of evaporating surface. From a view point of irreversible thermodynamics, the criteria for the inverted temperature profile are examined with the NEMD data and we have a conclusion that the inverted temperature profile may occur without contradiction to the second law of thermodynamics. In addition, we found that the molecular reflection at the condensing surface has an important role in the inverted temperature phenomenon. The reflected molecules do not accommodate with the condensing surface so that those molecules raise the temperature in the vicinity of the condensing surface under the nonequilibrium conditions.
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Karagodsky, Vadim, Christopher Chase, and Connie J. Chang-Hasnain. "Novel Inverse-tone High Contrast Grating Reflector." In Conference on Lasers and Electro-Optics. Washington, D.C.: OSA, 2010. http://dx.doi.org/10.1364/cleo.2010.ctuw3.

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Seleznyov, D. G., I. I. Reznik, and A. D. Seleznyov. "A microstrip radiator for reflector antennas." In DIPED - 2000. Proceedings of 5th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory. IEEE, 2000. http://dx.doi.org/10.1109/diped.2000.890013.

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Knockaert, J., J. Peuteman, J. Catrysse, and R. Belmans. "Hidden reflection phenomena on inverter-fed induction motors." In 2005 IEEE 11th European Conference on Power Electronics and Applications. IEEE, 2005. http://dx.doi.org/10.1109/epe.2005.219371.

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Reports on the topic "Inverted reflector"

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Symes, William W. The Reflection Inverse Problem for Acoustic Waves. Fort Belvoir, VA: Defense Technical Information Center, December 1990. http://dx.doi.org/10.21236/ada452690.

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