Academic literature on the topic 'Hybrid absorbing technique'

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Journal articles on the topic "Hybrid absorbing technique"

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Muratov, D. G., L. V. Kozhitov, A. V. Popkova, E. Yu Korovin, E. V. Yakushko, and M. R. Bakirov. "Study of the radar absorption of metal-carbon nanocomposites (review)." Industrial laboratory. Diagnostics of materials 89, no. 1 (2023): 35–45. http://dx.doi.org/10.26896/1028-6861-2023-89-1-35-45.

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Development of the technology for the synthesis of magnetic nanoparticles of metals and alloys has opened up the possibility of their use in the field of radar-absorbing materials (RAM). The results of studying the properties of nanocomposites, method for the synthesis of metal-carbon nanocomposites by pyrolysis using infrared heating are reviewed. The magnetic, electromagnetic, and radar-absorbing properties of the obtained nanocomposites depending on the synthesis temperature and metal concentration were studied. It is shown that the chosen metals, alloys (FeCo) and carbon material are effec
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Salisu, Bashir. "CHARACTERIZATION OF HYBRID-FORMAMIDINIUM BISMUTH BROMIDE PEROVSKITE MATERIAL (FABi2Br9) SYNTHESIZED VIA GROWTH ASSISTED TECHNIQUE FOR SOLAR CELLS APPLICATION." FUDMA JOURNAL OF SCIENCES 5, no. 3 (2021): 169–76. http://dx.doi.org/10.33003/fjs-2021-0503-694.

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 In the last decade, organic-inorganic perovskite solar cells (PSCs) have had tremendous success, raising their power conversion efficiency from 3.8% in 2009(T, A, K, & Y, 2009) to >25.6% (Li et al., 2021). Perovskite material is newly emergent, third-generation solar cells, it generally refers to any composite that has structure like that of calcium titanium oxide (CaTiO2). It has a general formula ABX­3, where A refers to an organic compound, B is an inorganic and X represents the halides. In this research, a Hybrid-Formamidinium Bismuth Bromide Perovskite solar cell (FA
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Cantrell, Will, and George E. Ewing. "Attenuated (but Not Total) Internal Reflection FT-IR Spectroscopy of Thin Films." Applied Spectroscopy 56, no. 5 (2002): 665–69. http://dx.doi.org/10.1366/0003702021955240.

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We present a spectroscopic technique that is a hybrid between reflection-absorption and attenuated total reflection (ATR) spectroscopy. The method, which we call attenuated internal reflection (AIR), is suitable for the investigation of thin film liquids on non-or weakly absorbing substrates. In AIR the interrogating infrared beam is not exposed to vapor that may be associated with the film, but unlike ATR there are few geometric constraints on the substrate. We show the theoretical basis for the method and results from experiments demonstrating its use.
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Mohamad, Barhm, Jalics Karoly, Andrei Zelentsov, and Salah Amroune. "A hybrid method technique for design and optimization of Formula race car exhaust muffler." International Review of Applied Sciences and Engineering 11, no. 2 (2020): 174–80. http://dx.doi.org/10.1556/1848.2020.20048.

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AbstractIn this work a multilevel Computational Fluid Dynamics (CFD) analysis has been applied for the design of a Formula race car exhaust muffler with improved characteristics of sound pressure level (SPL) and fluid dynamic response. The approaches developed and applied for the optimization process range from the 1D to fully 3D CFD simulation, exploring hybrid approaches based on the integration of a 1D model with 3D tools. Modern mufflers typically have a complex system of chambers and flow paths. There are a variety of sound damping and absorbing mechanisms working to quiet the sound flowi
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Tao, Chenglin, Zhao Wang, Zeliang Liu, et al. "Crashworthiness of Additively Manufactured Lattice Reinforced Thin-Walled Tube Hybrid Structures." Aerospace 10, no. 6 (2023): 524. http://dx.doi.org/10.3390/aerospace10060524.

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In this paper, a new hybrid structure of body-centered cubic lattice-filled thin-walled tube is designed, and the hybrid structure specimens of one-piece printing and split-printing are prepared by laser melting technique. The deformation mode and energy absorption characteristics of the new hybrid structure are investigated by experiments and numerical simulations. Under axial compression, the one-piece printed hybrid structure forms more wrinkles with smaller wavelengths, and the specific energy absorption increases by 12.14% compared with the split-printed structure; under transverse compre
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Huang, Shaowu, Gary Charles, Kai Xiao, and Beomtaek Lee. "REDUCTION OF PCB PDN IMPEDANCE AND RADIATED EMISSIONS USING A HYBRID TECHNIQUE WITH ABSORBING MATERIALS AND DECOUPLING CAPACITORS." Progress In Electromagnetics Research B 77 (2017): 137–54. http://dx.doi.org/10.2528/pierb17041605.

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Dolci, Daiane Iglesia, Felipe A. G. Silva, Pedro S. Peixoto, and Ernani V. Volpe. "Effectiveness and computational efficiency of absorbing boundary conditions for full-waveform inversion." Geoscientific Model Development 15, no. 14 (2022): 5857–81. http://dx.doi.org/10.5194/gmd-15-5857-2022.

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Abstract. Full-waveform inversion (FWI) is a high-resolution numerical technique for seismic waves used to estimate the physical characteristics of a subsurface region. The continuous problem involves solving an inverse problem on an infinite domain, which is impractical from a computational perspective. In limited area models, absorbing boundary conditions (ABCs) are usually imposed to avoid wave reflections. Several relevant ABCs have been proposed, with extensive literature on their effectiveness on the direct wave problem. Here, we investigate and compare the theoretical and computational
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Xu, Run-Wen, and Li-Xin Guo. "Application of Hybrid Finite Element-Boundary Integral Algorithm for Solving Electromagnetic Scattering from Multiple Objects over Rough Sea Surface." International Journal of Antennas and Propagation 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/301934.

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A hybrid algorithm of the finite element method (FEM) is presented to solve two-dimensional (2D) scattering from multiple dielectric objects above the rough sea surface. Compared with traditional FEM based on approximate absorbing boundaries, FEM based on the boundary integral method (BIM) can reduce the calculational region and solution time of the scattering problem. In the hybrid method, the whole computational region is divided into the sea surface and multiple isolate interior regions for the dielectric objects. FEM is only used to simulate the scattering from multiple interior regions en
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Acanfora, Valerio, Ferdinando Baldieri, Antonio Garofano, Francesco Fittipaldi, and Aniello Riccio. "On the Crashworthiness Behaviour of Innovative Sandwich Shock Absorbers." Polymers 14, no. 19 (2022): 4163. http://dx.doi.org/10.3390/polym14194163.

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Increasing the impact resistance properties of any transport vehicle is a real engineering challenge. This challenge is addressed in this paper by proposing a high-performing structural solution. Hence, the performance, in terms of improvement of the energy absorbing characteristics and the reduction of the peak accelerations, of highly efficient shock absorbers integrated in key locations of a minibus chassis have been assessed by means of numerical crash simulations. The high efficiency of the proposed damping system has been achieved by improving the current design and manufacturing process
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Sakthivel, Santhanam, Selvaraj Senthil Kumar, Eshetu Solomon, et al. "Sound absorbing and insulating properties of natural fiber hybrid composites using sugarcane bagasse and bamboo charcoal." Journal of Engineered Fibers and Fabrics 16 (January 2021): 155892502110448. http://dx.doi.org/10.1177/15589250211044818.

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This research paper reports a study on thermal and sound insulation samples developed from sugarcane bagasse and bamboo charcoal for automotive industry applications. The sugarcane bagasse and bamboo charcoal fiber is a potential source of raw material that can be considered for thermal and sound insulation applications. Natural fibers are commonly used in diverse applications and one of the most important applications is sound absorption. Natural fiber hybrid composite currently is in greater demand in industries because of their advantages such as low cost, biodegradability, acceptable physi
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