Relevant bibliographies by topics / Optimization of Back Reflectors

Contents

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

Academic literature on the topic 'Optimization of Back Reflectors'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Optimization of Back Reflectors"

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Wei, Juanfang, Cheng Zhang, Xueliang Qi, Xiaofei Ma, and Yanyong Li. "Ultra-high-precision reflectors - design concepts, structural optimization and zero-expansion composites." International Journal of Computational Materials Science and Engineering 07, no. 01n02 (June 2018): 1850009. http://dx.doi.org/10.1142/s2047684118500094.

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The developing of satellite remote sensing technology demands high precision reflectors. This paper is devoted to the development of an ultra-high precision reflector, including the structural design and optimization, and even a kind of zero-expansion composite. A novel parabolic reflector without the traditional back surface is designed, simulated and analyzed. The relationships of some key parameters(surface error and weight) with other structural parameters are obtained. As the Kevlar fabric has negative CTE (Coefficient of Thermal Expansion) and CFRP has positive CTE, a Kevlar fabric-assisted carbon fiber composite is suggested. This composite exhibits the advantage of zero-expansion in 2D plane. Further, this zero-expansion laminate has been successfully manufactured. Finally, based on the design and analysis of the zero-expansion composite with CFRP and Kevlar fabric, an ultrahigh-precision reflector is successfully designed. The results of finite element method (FEM) show that the thermal distortion of the reflector meets the requirements of remote satellite, whose working radio frequency (RF) is 600[Formula: see text]GHz.
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Fernández, S., A. Bollero, F. B. Naranjo, O. de Abril, and J. J. Gandía. "Optimization of ZnO:Al based back reflectors for applications in thin film flexible solar cells." Vacuum 99 (January 2014): 56–61. http://dx.doi.org/10.1016/j.vacuum.2013.04.013.

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Lipovšek, Benjamin, Janez Krč, Olindo Isabella, Miro Zeman, and Marko Topič. "Modeling and optimization of white paint back reflectors for thin-film silicon solar cells." Journal of Applied Physics 108, no. 10 (November 15, 2010): 103115. http://dx.doi.org/10.1063/1.3512907.

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Blome, Mark, Kevin McPeak, Sven Burger, Frank Schmidt, and David Norris. "Back-reflector design in thin-film silicon solar cells by rigorous 3D light propagation modeling." COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 33, no. 4 (July 1, 2014): 1282–95. http://dx.doi.org/10.1108/compel-12-2012-0367.

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Purpose – The purpose of this paper is to find an optimized thin-film amorphous silicon solar cell design by numerically optimizing the light trapping efficiency of a pyramid-structured back-reflector using a frequency-domain finite element Maxwell solver. For this purpose short circuit current densities and absorption spectra within the investigated solar cell model are systematically analyzed. Furthermore, the authors employ a topology simulation method to accurately predict the material layer interfaces within the investigated solar cell model. The method simulates the chemical vapor deposition (CVD) process that is typically used to fabricate thin-film solar cells by combining a ballistic transport and reaction model (BTRM) with a level-set method in an iterative approach. Predicted solar cell models are far more realistic compared to solar cell models created assuming conformal material growth. The purpose of the topology simulation method is to increase the accuracy of thin-film solar cell models in order to facilitate highly accurate simulation results in solar cell design optimizations. Design/methodology/approach – The authors perform numeric optimizations using a frequency domain finite element Maxwell solver. Topology simulations are carried out using a BTRM combined with a level-set method in an iterative fashion. Findings – The simulation results reveal that the employed pyramid structured back-reflectors effectively increase the light path in the absorber mainly by exciting photonic waveguide modes. In using the optimization approach, the authors have identified solar cell models with cell periodicities around 480 nm and pyramid base widths around 450 nm to yield the highest short circuit current densities. Compared to equivalent solar cell models with flat back-reflectors, computed short circuit current densities are significantly increased. Furthermore, the paper finds that the solar cell models computed using the topology simulation approach represent a far more realistic approximation to a real solar cell stack compared to solar cell models computed by a conformal material growth assumption. Research limitations/implications – So far in the topology simulation approach the authors assume CVD as the material deposition process for all material layers. However, during the fabrication process sputtering (i.e. physical vapor deposition) will be employed for the Al:ZnO and ITO layers. In the framework of this ongoing research project the authors will extend the topology simulation approach to take the different material deposition processes into account. The differences in predicted material interfaces will presumably be only minor compared to the results shown here and certainly be insignificant relative to the differences the authors observe for solar cell models computed assuming conformal material growth. Originality/value – The authors systematically investigate and optimize the light trapping efficiency of a pyramid nano-structured back-reflector using rigorous electromagnetic field computations with a 3D finite element Maxwell solver. To the authors’ knowledge such an investigation has not been carried out yet in the solar cell research literature. The topology simulation approach (to the best of the authors’ knowledge) has previously not been applied to the modelling of solar cells. Typically a conformal layer growth assumption is used instead.
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Lenaerts, Joeri, Hannah Pinson, and Vincent Ginis. "Artificial neural networks for inverse design of resonant nanophotonic components with oscillatory loss landscapes." Nanophotonics 10, no. 1 (November 30, 2020): 385–92. http://dx.doi.org/10.1515/nanoph-2020-0379.

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AbstractMachine learning offers the potential to revolutionize the inverse design of complex nanophotonic components. Here, we propose a novel variant of this formalism specifically suited for the design of resonant nanophotonic components. Typically, the first step of an inverse design process based on machine learning is training a neural network to approximate the non-linear mapping from a set of input parameters to a given optical system’s features. The second step starts from the desired features, e.g. a transmission spectrum, and propagates back through the trained network to find the optimal input parameters. For resonant systems, this second step corresponds to a gradient descent in a highly oscillatory loss landscape. As a result, the algorithm often converges into a local minimum. We significantly improve this method’s efficiency by adding the Fourier transform of the desired spectrum to the optimization procedure. We demonstrate our method by retrieving the optimal design parameters for desired transmission and reflection spectra of Fabry–Pérot resonators and Bragg reflectors, two canonical optical components whose functionality is based on wave interference. Our results can be extended to the optimization of more complex nanophotonic components interacting with structured incident fields.
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Dagamseh, A. M. K., B. Vet, P. Šutta, and M. Zeman. "Modelling and optimization of a-Si:H solar cells with ZnO:Al back reflector." Solar Energy Materials and Solar Cells 94, no. 12 (December 2010): 2119–23. http://dx.doi.org/10.1016/j.solmat.2010.06.039.

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Yue, Guozhen, Laura Sivec, Jessica M. Owens, Baojie Yan, Jeffrey Yang, and Subhendu Guha. "Optimization of back reflector for high efficiency hydrogenated nanocrystalline silicon solar cells." Applied Physics Letters 95, no. 26 (December 28, 2009): 263501. http://dx.doi.org/10.1063/1.3279143.

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Pavone, Santi Concetto, Giorgio Sebastiano Mauro, Loreto Di Donato, and Gino Sorbello. "Design of Dual Circularly Polarized Sequentially-Fed Patch Antennas for Satellite Applications." Applied Sciences 10, no. 6 (March 20, 2020): 2107. http://dx.doi.org/10.3390/app10062107.

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In this paper, we present the design and fabrication of two dual circularly polarized (CP) patch antennas that can be profitably used as feeders for reflector systems normally adopted for satellite applications. In the first part of the manuscript, we propose the optimization of a dual-CP patch antenna, loaded by a fence of passive monopoles around it to increase antenna gain for high elevation angles. To achieve dual-CP operation mode, the circular patch has been sequentially-fed by three pins, whose mutual phase-shift is equal to 120 ∘ . The antenna feeding network was placed on the antenna back and designed using microstrip technology. Two different input ports provide both right-hand (RH) and left-hand (LH) circular polarizations. A prototype of such an antenna was fabricated and measured at f = 8 . 25 GHz. Furthermore, to test the versatility of the proposed single radiating patch, in the second part of the manuscript, we present the results of geometrically scaling at f = 2 . 2 GHz (higher UHF band) and this was used as a building block for the design of a dual-CP sequentially-fed 2-by-2 array antenna. The results for both the proposed antennas are satisfactory in terms of impedance bandwidth, broad radiation pattern, gain and cross-polarization rejection, thus they can be profitably used as feeders for reflectors at relatively low frequencies.
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Gao, Ge, Kai Zhang, and Shiru Sun. "Optimization of 110 m Aperture Fully Steerable Radio Telescope Prestressed Back Frame Structure Based on a Genetic Algorithm." Advances in Civil Engineering 2021 (September 3, 2021): 1–16. http://dx.doi.org/10.1155/2021/3323434.

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Radio telescopes play an important role in lunar exploration projects, manned space flight projects, and navigation systems. China is constructing a giant 110 m aperture ground-based fully steerable radio telescope in Qitai County, Xinjiang Uygur Autonomous Region. In this paper, a 110 m aperture fully steerable radio telescope prestressed back frame structure is proposed and optimized to improve the reflector accuracy and to reduce the weight of the telescope. First, prestressed cables are introduced into the back frame structure, and three innovative cable layout schemes are presented. Second, for stress state analysis, the wind pressure distribution on the main reflector is explored using wind tunnel experiments. Third, some improvements in genetic algorithms for addressing computational complexity are explained. Finally, the effects of prestressed cables on the weight reduction and reflector accuracy improvement are analysed. Additionally, in order to evaluate the safety of the prestressed back frame structure, its strength has been checked, and the internal force and displacement under static conditions and in earthquakes are interpreted in detail.
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Saravanan, S., R. S. Dubey, S. Kalainathan, M. A. More, and D. K. Gautam. "Design and optimization of ultrathin crystalline silicon solar cells using an efficient back reflector." AIP Advances 5, no. 5 (May 2015): 057160. http://dx.doi.org/10.1063/1.4921944.

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Dissertations / Theses on the topic "Optimization of Back Reflectors"

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Schleussner, Sebastian Michael. "ZrN Back-Contact Reflectors and Ga Gradients in Cu(In,Ga)Se2 Solar Cells." Doctoral thesis, Uppsala universitet, Fasta tillståndets elektronik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-151402.

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Solar cells constitute the most direct way of converting solar energy to electricity, and thin-film solar-cell technologies have lately been growing in importance, allowing the fabrication of less expensive modules that nonetheless have good power-conversion efficiencies. This thesis focuses on solar cells based on Cu(In,Ga)Se2, which is the thin-film technology that has shown the highest conversion efficiency to date, reaching 20.3 % on the laboratory scale. Solar modules still have some way to go to become entirely competitive with existing energy technologies, and there are two possible paths to this goal: Firstly, reducing their manufacturing costs, for instance by minimizing the material usage per module and/or by increasing the throughput of a given factory; and secondly, increasing the power output per module in other words, the module efficiency. The subject matters of this thesis are related to those two approaches. The first issue investigated is the possibility for reducing the thickness of the Cu(In,Ga)Se2 layer and compensating for lost absorption by using a ZrN back reflector. ZrN layers are fabricated by reactive sputtering and I present a method for tuning the sputtering parameters so as to obtain a back reflector with good optical, electrical and mechanical properties. The reflector layer cannot be used directly in CIGS devices, but relatively good devices can be achieved with a precursor providing a homogeneous supply of Na, the addition of a very thin sacrificial Mo layer that allows the formation of a film of MoSe2 passivating the back contact, and optionally a Ga gradient that further keeps electrons away from the back contact. The second field of study concerns the three-stage CIGS coevaporation process, which is widely used in research labs around the world and has yielded small-area cells with highest efficiencies, but has not yet made it to large scale production. My focus lies on the development and the effect of gradients in the [Ga]/[In+Ga] ratio. On the one hand, I investigate 'intrinsic' gradients (ones that form autonomously during the evaporation), and present a formation model based on the differing diffusivity of Ga and In atoms in CIGS and on the development along the quasi-binary tie line between (In,Ga)2Se3 and Cu2Se. On the other hand, I determine how the process should be designed in order to preserve 'extrinsic' gradients due to interdiffusion. Lastly, I examine the electrical effects of Ga-enhancement at the back and at the front of the absorber and of In-enhancement at the front. Over a wide range, In-rich top layers prove to have no or a weakly beneficial effect, while Ga-rich top regions pose a high risk to have a devastating effect on device performance.
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Lewis, Brian Wellington. "Silica nanosphere textured back reflectors for increased absorption in thin film amorphous silicon solar cells." [Ames, Iowa : Iowa State University], 2010. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1476317.

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Curtin, Benjamin Michael. "Photonic crystal back-reflectors for light management and enhanced absorption in a-Si:H solar cells." [Ames, Iowa : Iowa State University], 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1468075.

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Boesch, Ryan Paul. "SiO₂ nanosphere textured back reflectors for enhanced light trapping in amorphous and nanocrystalline silicon solar cells." [Ames, Iowa : Iowa State University], 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1464182.

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Ramachandran, Adithya. "HEV fuel optimization using interval back propagation based dynamic programming." Thesis, Georgia Institute of Technology, 2016. http://hdl.handle.net/1853/55054.

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In this thesis, the primary powertrain components of a power split hybrid electric vehicle are modeled. In particular, the dynamic model of the energy storage element (i.e., traction battery) is exactly linearized through an input transformation method to take advantage of the proposed optimal control algorithm. A lipschitz continuous and nondecreasing cost function is formulated in order to minimize the net amount of consumed fuel. The globally optimal solution is obtained using a dynamic programming routine that produces the optimal input based on the current state of charge and the future power demand. It is shown that the global optimal control solution can be expressed in closed form for a time invariant and convex incremental cost function utilizing the interval back propagation approach. The global optimality of both time varying and invariant solutions are rigorously proved. The optimal closed form solution is further shown to be applicable to the time varying case provided that the time variations of the incremental cost function are sufficiently small. The real time implementation of this algorithm in Simulink is discussed and a 32.84 % improvement in fuel economy is observed compared to existing rule based methods.
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Vardakos, Sotirios. "Back-analysis methods for optimal tunnel design." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/26124.

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A fundamental element of the observational method in geotechnical engineering practice is the utilization of a carefully laid out performance monitoring system which provides rapid insight of critical behavioral trends of the work. Especially in tunnels, this is of paramount importance when the contractual arrangements allow an adaptive tunnel support design during construction such as the NATM approach. Utilization of measurements can reveal important aspects of the ground-support interaction, warning of potential problems, and design optimization and forecasting of future behavior of the underground work. The term back-analysis involves all the necessary procedures so that a predicted simulation yields results as close as possible to the observed behavior. This research aims in a better understanding of the back-analysis methodologies by examining both simplified approaches of tunnel response prediction but also more complex numerical methods. Today a wealth of monitoring techniques is available for tunnel monitoring. Progress has also been recorded in the area of back-analysis in geotechnical engineering by various researchers. One of the most frequently encountered questions in this reverse engineering type of work is the uniqueness of the final solution. When possible errors are incorporated during data acquisition, the back analysis problem becomes formidable. Up to the present, various researchers have presented back-analysis schemes, often coupled with numerical methods such as the Finite Element Method, and in some cases the more general approach of neural networks has been applied. The present research focuses on the application of back-analysis techniques that are applicable to various conditions and are directly coupled with a widely available numerical program. Different methods are discussed and examples are given. The strength and importance of global optimization is introduced for geotechnical engineering applications along with the novel implementation of two global optimization algorithms in geotechnical parameter identification. The techniques developed are applied to the back-analysis of a modern NATM highway tunnel in China and the results are discussed.
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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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Murray, Myles P. "DEVELOPMENT AND OPTIMIZATION OF BACK SURFACE ACRYLICSOLARMIRRORS TO ASSURE 25 YEAR LIFETIME PERFORMANCE." Case Western Reserve University School of Graduate Studies / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=case1364987929.

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Johnson, Christian Axel. "Optimization-based biomechanical evaluation of isometric exertions on a brake wheel." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-03032009-041004/.

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Safi, Djamschid [Verfasser]. "Simulation of traveling-wave tubes for analysis and optimization in modulated back-off / Djamschid Safi." Hamburg : Universitätsbibliothek der Technischen Universität Hamburg-Harburg, 2020. http://d-nb.info/1217326774/34.

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Books on the topic "Optimization of Back Reflectors"

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Padula, Sharon L. Integrated structure electromagnetic optimization of large space antenna reflectors. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1987.

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Padula, S. L. Integrated structure electromagnetic optimization of large space antenna reflectors. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1987.

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L, Padula S., and Langley Research Center, eds. Integrated thermal-structural-electromagnetic design optimization of large space antenna reflectors. Hampton, Va: National Aeronautics and Space Administration, Langley Researach Center, 1986.

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L, Padula S., and Langley Research Center, eds. Integrated thermal-structural-electromagnetic design optimization of large space antenna reflectors. Hampton, Va: National Aeronautics and Space Administration, Langley Researach Center, 1986.

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L, Padula S., and Langley Research Center, eds. Integrated thermal-structural-electromagnetic design optimization of large space antenna reflectors. Hampton, Va: National Aeronautics and Space Administration, Langley Researach Center, 1986.

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M, Darden Christine, and United States. National Aeronautics and Space Administration. Scientific and Technical Information Division., eds. Validation of a pair of computer codes for estimation and optimization of subsonic aerodynamic performance of simple hinged-flap systems for thin swept wings. [Washington, D.C.]: National Aeronautics and Space Administration, Scientific and Technical Information Division, 1988.

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Book chapters on the topic "Optimization of Back Reflectors"

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Neubauer, Andreas. "Design of 3D-Reflectors for Near Field and Far Field Problems." In Large-Scale Optimization with Applications, 101–18. New York, NY: Springer New York, 1997. http://dx.doi.org/10.1007/978-1-4612-1962-0_6.

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Zou, Weidong, Fenxi Yao, Baihai Zhang, and Zixiao Guan. "Back Propagation Convex Extreme Learning Machine." In Proceedings in Adaptation, Learning and Optimization, 259–72. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-57421-9_21.

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Talati, Isha, Poonam Mishra, and Azharuddin Shaikh. "An Integrated and Collaborated Supply Chain Model Using Quantity Discount Policy with Back Order for Time Dependent Deteriorating Items." In Inventory Optimization, 133–48. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-1729-4_9.

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Remde, Stephen, Keshav Dahal, Peter Cowling, and Nic Colledge. "Binary Exponential Back Off for Tabu Tenure in Hyperheuristics." In Evolutionary Computation in Combinatorial Optimization, 109–20. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01009-5_10.

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Jani, Mrudul Y., Nita H. Shah, and Urmila Chaudhari. "An Inventory Policy for Maximum Fixed Life-Time Item with Back Ordering and Variable Demand Under Two Levels Order Linked Trade Credits." In Inventory Optimization, 61–75. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-1729-4_5.

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Contaldo, Francesco, Patrick Trentin, and Roberto Sebastiani. "From MiniZinc to Optimization Modulo Theories, and Back." In Integration of Constraint Programming, Artificial Intelligence, and Operations Research, 148–66. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58942-4_10.

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Song, Wang, Ma Xiuying, and Ma Qiang. "Simulation and Optimization of Automobile Back Door Lock." In Advances in Intelligent Systems and Computing, 482–87. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5887-0_70.

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Fatty, Abdoulie, and A. J. Li. "Back Analysis Algorithm Based on Particle Swarm Optimization." In Springer Series in Geomechanics and Geoengineering, 1470–73. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-97115-5_125.

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Zhang, Yuchao, and Ke Xu. "Optimization of Container Communication in DC Back-End Servers." In Network Management in Cloud and Edge Computing, 65–89. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-0138-8_5.

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Miele, Angelo. "On Feasibility of Interplanetary Travel: the Flight from Earth to Mars and Back." In Modeling, Control and Optimization of Complex Systems, 179–94. Boston, MA: Springer US, 2003. http://dx.doi.org/10.1007/978-1-4615-1139-7_8.

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Conference papers on the topic "Optimization of Back Reflectors"

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Martin, Pedro Jesse, and Govindasamy Tamizhmani. "Optimization of Back Reflectors for Bifacial Photovoltaic Modules." In 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC). IEEE, 2019. http://dx.doi.org/10.1109/pvsc40753.2019.8980783.

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Cho, Jun-Sik, Sanghun Baek, Jeong Chul Lee, Sang-Hyun Park, Jinsoo Song, and Kyung Hoon Yoon. "Optimization of ZnO/Ag back-reflectors for silicon thin film solar cell applications." In 2010 35th IEEE Photovoltaic Specialists Conference (PVSC). IEEE, 2010. http://dx.doi.org/10.1109/pvsc.2010.5614447.

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Yue, Guozhen, Baojie Yan, Laura Sivec, Jessica M. Owens, Sherry Hu, Xixiang Xu, Jeffrey Yang, and Subhendu Guha. "Improvement of a-Si:H and nc-Si:H multi-junction solar cells by optimization of textured back reflectors." In 2009 34th IEEE Photovoltaic Specialists Conference (PVSC). IEEE, 2009. http://dx.doi.org/10.1109/pvsc.2009.5411668.

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Santbergen, Rudi, Hairen Tan, Arno H. M. Smets, and Miro Zeman. "Driving Field Optimization of Plasmonic Back Reflector for Thin-Film Silicon Solar Cells." In Optical Instrumentation for Energy and Environmental Applications. Washington, D.C.: OSA, 2012. http://dx.doi.org/10.1364/e2.2012.jm4b.3.

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Tan, Lin Tze, and Sergio Pellegrino. "Stiffness Design of Spring Back Reflectors." In 43rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2002. http://dx.doi.org/10.2514/6.2002-1498.

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Li, Lifang, Bin Guo, Zongquan Deng, and Pengzhen Guo. "A New Concept to Form Arc Cylinders to Parabolic Troughs Using Optimal Forces." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-46144.

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Large parabolic concentrating mirrors are an important component of many solar energy systems. They need to be relatively precise against disturbances as gravity, thermal gradients, wind loading, etc. Here, a new method is proposed to transform a cylindrical reflector surface that is easy to manufacture into a parabolic surface for use in large solar concentrators. This is achieved by applying a finite number of optimal point loads using actuators along the back of the cylindrical reflector surface. The paper details a finite element optimization method used to obtain the optimal force magnitudes to transform an arc cylinder into a parabolic trough. It also presents an analysis of the power boost realized at the receiver in going from a circular to parabolic cross-section. The proposed method is analyzed using theoretical derivations, numerical calculations and finite element model calculated in the finite element software ADINA. FEA shape results are optically ray-traced and focal errors are to evaluate the deformed shape. The mechanics can also be used to control other deformable optical surfaces. This concept has potentials to provide precision large parabolic trough concentrators at a substantially lower cost than conventional methods.
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Korsch, Dietrich. "Design Optimization Of Astrometric Reflectors." In SPIE 1989 Technical Symposium on Aerospace Sensing, edited by Dietrich G. Korsch. SPIE, 1989. http://dx.doi.org/10.1117/12.955570.

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Lu, Chen-Han, Hsiu-Wei Su, and Yung-Jr Hung. "Backside-illuminated CMOS photodiodes with polysilicon grating back-reflectors." In CLEO: Applications and Technology. Washington, D.C.: OSA, 2017. http://dx.doi.org/10.1364/cleo_at.2017.jth2a.97.

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Haug, Franz-Josef, Jia Li, and Christophe Ballif. "Parasitic absorption effects in metallic back reflectors with texture." In 2014 IEEE 40th Photovoltaic Specialists Conference (PVSC). IEEE, 2014. http://dx.doi.org/10.1109/pvsc.2014.6925586.

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Adhikari, Sushil, Mukul Dubey, Zhihe Zhao, David Galipeau, and Qi Hua Fan. "Quantitative evaluation of texture characteristics of solar cell back reflectors." In 2013 IEEE International Conference on Electro/ Information Technology (EIT). IEEE, 2013. http://dx.doi.org/10.1109/eit.2013.6632648.

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Reports on the topic "Optimization of Back Reflectors"

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C.A. Wang, P.G. Murphy, P.W. O'Brien, D.A. Shiau, A.C. Anderson, Z.L. Liau, D.M. Depoy, and G. Nichols. Wafer-Bonded Internal Back-Surface Reflectors for Enhanced TPV Performance. Office of Scientific and Technical Information (OSTI), August 2002. http://dx.doi.org/10.2172/821703.

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Radeva, Stoika, Aysha Zaralieva, Dimitar Tonev, and Assen Aleksiev. Optimization of Therapeutic Approach in Treat ment of Subacute Lumbosacral Radiculopathy (Low Back Pain). "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, July 2021. http://dx.doi.org/10.7546/crabs.2021.07.15.

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