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Relevant bibliographies by topics / Adaptive Dielectric

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Journal articles
Dissertations / Theses
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Academic literature on the topic 'Adaptive Dielectric'

Author: Grafiati

Published: 6 September 2023

Last updated: 7 September 2023

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Journal articles on the topic "Adaptive Dielectric"

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Ren, Hongwen, Haiqing Xianyu, Su Xu, and Shin-Tson Wu. "Adaptive dielectric liquid lens." Optics Express 16, no. 19 (2008): 14954. http://dx.doi.org/10.1364/oe.16.014954.

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Garnell, Emil, Olivier Doaré, and Corinne Rouby. "Model-Based Adaptive Filtering of Dielectric Elastomer Loudspeakers." Journal of the Audio Engineering Society 69, no. 6 (2021): 389–97. http://dx.doi.org/10.17743/jaes.2021.0010.

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Chen, Yu, Rong Yu, Weifei Li, Omid Nohadani, Stephan Haas, and A. F. J. Levi. "Adaptive design of nanoscale dielectric structures for photonics." Journal of Applied Physics 94, no. 9 (2003): 6065–68. http://dx.doi.org/10.1063/1.1614422.

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Bernat, Jakub, and Jakub Kolota. "A PI Controller with a Robust Adaptive Law for a Dielectric Electroactive Polymer Actuator." Electronics 10, no. 11 (2021): 1326. http://dx.doi.org/10.3390/electronics10111326.

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Dielectric electroactive polymer actuators are new important transducers in control system applications. The design of a high performance controller is a challenging task for these devices. In this work, a PI controller was studied for a dielectric electroactive polymer actuator. The pole placement problem for a closed-loop system with the PI controller was analyzed. The limitations of a PI controller in the pole placement problem are discussed. In this work, the analytic PI controller gain rules were obtained, and therefore extension to adaptive control is possible. To minimize the influence

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Hoffstadt, Thorben, and Jurgen Maas. "Adaptive Sliding-Mode Position Control for Dielectric Elastomer Actuators." IEEE/ASME Transactions on Mechatronics 22, no. 5 (2017): 2241–51. http://dx.doi.org/10.1109/tmech.2017.2730589.

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Utsumi, Yozo, Toshihisa Kamei, and Ryo Naito. "Dielectric properties of microstrip-line adaptive liquid crystal devices." Electronics and Communications in Japan (Part II: Electronics) 87, no. 10 (2004): 13–24. http://dx.doi.org/10.1002/ecjb.20082.

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Khmil, N. V., V. G. Kolesnikov, and O. L. Altuhov. "Evaluation of disorders of adaptive mechanisms in heart failure by microwave dielectrometry." Radiotekhnika, no. 209 (June 24, 2022): 200–205. http://dx.doi.org/10.30837/rt.2022.2.209.20.

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Differential diagnosis of stress adaptive mechanisms is one of the areas of modern biomedical engineering and the most complex part of the pre-nosological diagnosis of cardiac pathology. One of the manifestations of disadaptation in heart failure is a violation of the mechanisms of realization of the intracellular chain "signal-function". The concept of imbalance in the functioning of the adenylate cyclase system and β-adrenergic receptors of the erythrocytes membrane and cardiomyocytes is considered in the pathogenesis of the heart. The study of the dielectric constant (ε՜) of erythrocy

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Beilina, Larisa, and Eric Lindström. "An Adaptive Finite Element/Finite Difference Domain Decomposition Method for Applications in Microwave Imaging." Electronics 11, no. 9 (2022): 1359. http://dx.doi.org/10.3390/electronics11091359.

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A new domain decomposition method for Maxwell’s equations in conductive media is presented. Using this method, reconstruction algorithms are developed for the determination of the dielectric permittivity function using time-dependent scattered data of an electric field. All reconstruction algorithms are based on an optimization approach to find the stationary point of the Lagrangian. Adaptive reconstruction algorithms and space-mesh refinement indicators are also presented. Our computational tests show the qualitative reconstruction of the dielectric permittivity function using an anatomically

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Ewe, Wei-Bin, Le-Wei Li, and Mook-Seng Leong. "SOLVING MIXED DIELECTRIC/CONDUCTING SCATTERING PROBLEM USING ADAPTIVE INTEGRAL METHOD." Progress In Electromagnetics Research 46 (2004): 143–63. http://dx.doi.org/10.2528/pier03091001.

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Findikoglu, A. T., Q. X. Jia, and D. W. Reagor. "Superconductor/nonlinear-dielectric bilayers for tunable and adaptive microwave devices." IEEE Transactions on Appiled Superconductivity 7, no. 2 (1997): 2925–28. http://dx.doi.org/10.1109/77.621917.

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Dissertations / Theses on the topic "Adaptive Dielectric"

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ZEESHAN, ZEESHAN. "Progress in Adaptive Electrical Capacitance Tomography." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1502179655927844.

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Ireland, David John, and n/a. "Realization of Dielectric Embedded Monopole Radiating Structures For Wireless Computing." Griffith University. School of Microelectronic Engineering, 2006. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20070117.175717.

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With the rapid of growth of wireless connectivity more demand is placed on the need for innovative technologies capable of satisfying increasing user demand and network capacity. Adaptive antennas systems or most commonly known as Smart Antennas are expected to be implemented in the next generation of wireless systems. Their implementation avails in dynamic adaptation to spatial and temporal conditions affecting the quality of communication, while offering tremendous flexibility to wireless providers. However one of the major challenges facing Smart Antenna technology is the inherent complexit

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Ireland, David John. "Realization of Dielectric Embedded Monopole Radiating Structures For Wireless Computing." Thesis, Griffith University, 2006. http://hdl.handle.net/10072/367819.

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With the rapid of growth of wireless connectivity more demand is placed on the need for innovative technologies capable of satisfying increasing user demand and network capacity. Adaptive antennas systems or most commonly known as Smart Antennas are expected to be implemented in the next generation of wireless systems. Their implementation avails in dynamic adaptation to spatial and temporal conditions affecting the quality of communication, while offering tremendous flexibility to wireless providers. However one of the major challenges facing Smart Antenna technology is the inherent complexit

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Pelteku, Altin E. "Adaptive Suppression of Interfering Signals in Communication Systems." Digital WPI, 2013. https://digitalcommons.wpi.edu/etd-dissertations/138.

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The growth in the number of wireless devices and applications underscores the need for characterizing and mitigating interference induced problems such as distortion and blocking. A typical interference scenario involves the detection of a small amplitude signal of interest (SOI) in the presence of a large amplitude interfering signal; it is desirable to attenuate the interfering signal while preserving the integrity of SOI and an appropriate dynamic range. If the frequency of the interfering signal varies or is unknown, an adaptive notch function must be applied in order to maintain adequate

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Li, Yan. "High-efficiency Blue Phase Liquid Crystal Displays." Doctoral diss., University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5399.

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Blue phase liquid crystals (BPLCs) have a delicate lattice structure existing between chiral nematic and isotropic phases, with a stable temperature range of about 2 K. But due to short coherent length, these self-assembled nano-structured BPLCs have a fast response time. In the past three decades, the application of BPLC has been rather limited because of its narrow temperature range. In 2002, Kikuchi et al. developed a polymer stabilization method to extend the blue-phase temperature range to more than 60 K. This opens a new gateway for display and photonic applications. In this dissertatio

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Chaman, Chandan Kumar. "Design and Analysis of Wideband Dielectric Resonator Antenna for Wireless Applications." Thesis, 2018. http://ethesis.nitrkl.ac.in/9894/1/2018_MT_216EC5228_C_K_Chaman_Design.pdf.

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In the past few decades there has been a huge growth in the wideband high-frequency communication systems. A compact size, high-efficiency antenna design with low conductor loss is essential for enabling high data rate communication in addition to other necessary requirements. In ecent years, Dielectric Resonator Antenna DRA) has evolved to establish its presence because of its incomparable low profile,light weight antenna, that provide wide bandwidth with low dissipation loss compared to microstrip antennas. The flexibility in choice of shape, relative permittivity and size enables

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Bhattacharya, Prasenjit. "Adaptive Dielectric Thin Film Transistor : A Self-Configuring Device for Low Power Electrostatic Discharge Protection." Thesis, 2020. https://etd.iisc.ac.in/handle/2005/4696.

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Large area and flexible electronic systems are widely used in applications such as displays, image sensors, wearable electronics, and energy harvesting systems. One of the fundamental functional blocks in these systems is the thin-film transistor (TFT), which suffers from poor field-effect mobility, electrical instability, etc. due to the state localization at low-temperature fabrication process, a criterion that enables system realization on glass or flexible substrate, such as plastic. The electrostatic discharge (ESD) is a rapid transfer of static charge between two objects of dissimilar p

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Massenio, Paolo Roberto. "Reinforcement Learning-Based Techniques for the Optimal Control of Complex Systems." Doctoral thesis, 2021. http://hdl.handle.net/11589/225219.

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This doctoral thesis presents the results of the three-years activities carried out during the XXXIII cycle of the Ph.D. program in Electrical and Information Engineering of the Polytechnic University of Bari, Bari, Italy. The topic of this thesis is the optimal control of complex systems using Reinforcement Learning (RL) based techniques. Optimal control theory is aimed at finding control policies that minimize a predefined closed-loop performance criterion, namely the utility function. While optimal control for linear systems is a well-established framework, several issues arise when nonline

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Book chapters on the topic "Adaptive Dielectric"

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Beilina, Larisa, Marte P. Hatlo Andresen, and Harald E. Krogstad. "Adaptive Finite Element Method in Reconstruction of Dielectrics from Backscattered Data." In Applied Inverse Problems. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-7816-4_4.

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Zboiński, Grzegorz. "Adaptive Modeling and Simulation of Elastic, Dielectric and Piezoelectric Problems." In Finite Element Method - Simulation, Numerical Analysis and Solution Techniques. InTech, 2018. http://dx.doi.org/10.5772/intechopen.72265.

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Conference papers on the topic "Adaptive Dielectric"

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Fayad, H., and P. Record. "Adaptive Dielectric Resonator Antenna." In 2007 Loughborough Antennas and Propagation Conference. IEEE, 2007. http://dx.doi.org/10.1109/lapc.2007.367496.

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Vipperman, Jeffrey S., and Deyu Li. "Dielectric Response of Adaptive Piezoelectric Sensoriactuators." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1741.

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Abstract This paper closely examines the nature of the dielectric response of piezoceramics that are used as Adaptive Piezoelectric Sensoriactuators (APSAs). Firstly, it is demonstrated that he APSA possesses real time structural health monitoring abilities, based on the capacitance measurement of the piezoceramic. Secondly, nonideal behavior including lossy, hysteretic, and field dependence is measured in the piezoceramics and a method mitigating some of this response in the Adaptive Piezoelectric Sensoriactuator is proposed.

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Liu, Liwu, Tiefeng Li, Yanju Liu, and Jinsong Leng. "Electromechanical Stability of Dielectric Elastomer Using Electric Energy Density Function With Variable Dielectric Constant." In ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2010. http://dx.doi.org/10.1115/smasis2010-3724.

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Dielectric elastomer(DE) is a kind of promising material bearing excellent activate properties including large deformations (up to 380%), high energy densities (up to 3.4 J/g), high efficiency, high responsive speed, good reliability and durability. Thus the DE actuator, sensors and energy harvester is widely used in the field of aeronautics and smart bionics. When an electric field is applied on the compliant electrodes of the dielectric elastomers, the polymer shrinks along the electric field and expands in the transverse plane. In consequence, the electric field becomes higher. This kind of

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Gonzalez, David, Brittany Newell, Jose Garcia, Lucas Noble, and Trevor Mamer. "3-D Printing of Dielectric Electroactive Polymer Actuators and Characterization of Dielectric Flexible Materials." In ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/smasis2018-8011.

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Dielectric electroactive polymers are materials capable of mechanically adjusting their volume in response to an electrical stimulus. However, currently these materials require multi-step manufacturing processes which are not additive. This paper presents a novel 3D printed flexible dielectric material and characterizes its use as a dielectric electroactive polymer (DEAP) actuator. The 3D printed material was characterized electrically and mechanically and its functionality as a dielectric electroactive polymer actuator was demonstrated. The flexible 3-D printed material demonstrated a high di

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Masud, Md Abdulla Al, and Zoubeida Ounaies. "Dielectric Properties of Dielectrophoretically Aligned ZnO-PDMS Composites." In ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/smasis2016-9128.

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ZnO based polymer composite materials are of great interest because of their excellent electrical, optical, semiconductor and biocompatible properties. In this study, we synthesize anisotropic composites of aligned ZnO rods in polydimethylsiloxane (PDMS) elastomer and study their dielectric properties as a function of applied electric field and frequency. Submicron ZnO rods are synthesized using an inexpensive, high yield chemical route. Washed and purified ZnO rods are then aligned in uncured PDMS at different electric field and frequency. We find that under electric field, ZnO rotates with t

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Babicˇ, Mitja, and Jadran Lenarcˇicˇ. "On the Design of Driver Electronics for Dielectric Elastomer Applications." In ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2011. http://dx.doi.org/10.1115/smasis2011-4953.

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Actuators based on dielectric elastomers are a promising technology in robotic and mechatronic applications. Up to now, the practical electro-mechanical response and controllability of actuators based on dielectric elastomers are limited by the inadequacy of the employed driving circuits, which are based on voltage-regulated converters. In order to circumvent the aforementioned activation issues, the design procedure of a novel activation strategy for controlling dielectric elastomer actuators is presented in this article. The proposed electronic driver derives from the flyback converter topol

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Bakardjiev, Petko, Uwe Marschner, Andreas Richter, and Ercan M. Altinsoy. "Electromechanical Model of Dielectric Elastomer Transducers." In ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/smasis2022-90955.

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Abstract Dielectric Elastomers (DE) considered as smart materials have increasing popularity in the scientific community. Despite a multitude of presented applications and devises based on DE, there is no standard model to describe them as transducers. Thus, their design is in general often time-consuming. To describe the operational behavior, mostly material equations describing the materials energy state through strain and stress are utilized. The driving mechanism is expressed through the commonly known Maxwell-pressure which is the result of the energy balance. This often-used approach is

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Cooley, Christopher G., and Robert L. Lowe. "Dynamic Stiffness of Dielectric Elastomer Isolators." In ASME 2021 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/smasis2021-68371.

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Abstract This work calculates the quasi-static and dynamic stiffnesses of dielectric elastomer isolators that are mechanically loaded by nominal (constant) compressive forces with sinusoidal fluctuations and have constant voltages applied through their thickness. Quasi-static membrane stretches due to nominal compressive loads are determined numerically for a wide range of voltages, and quasi-static compressive stiffnesses are calculated from the corresponding through-thickness displacements. Two calculations of quasi-static stiffness are presented, with each intended to be used for a differen

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Heimann, Marcus, Henning Schröder, Sebastian Marx, and Klaus-Dieter Lang. "Dielectric elastomer actuators for adaptive photonic microsystems." In SPIE OPTO, edited by Christopher E. Tabor, François Kajzar, Toshikuni Kaino, and Yasuhiro Koike. SPIE, 2013. http://dx.doi.org/10.1117/12.2004334.

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Palli, Gianluca, and Giovanni Berselli. "On the Control of a Dielectric Elastomer Artificial Muscle With Variable Impedance." In ASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/smasis2013-3267.

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Artificial Muscles based on Dielectric Elastomers (DE) can potentially enable the realization of bio-inspired actuation systems whose intrinsic compliance and damping can be varied according to the task requirements. Nonetheless, the control of DE-based Variable Impedance Actuators (VIA) is not trivial owing to the non-linear viscoelastic response which characterizes the acrylic dielectrics commonly employed in practical devices. In this context, the purpose of the present paper is to outline a novel strategy for the control of DE-based VIA. Although the proposed methodology is applicable to g

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Reports on the topic "Adaptive Dielectric"

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McGregor, Duncan A., Vitaliy Gyrya, and Gianmarco Manzini. M-Adapting Low Order Mimetic Finite Differences for Dielectric Interface Problems. Office of Scientific and Technical Information (OSTI), 2016. http://dx.doi.org/10.2172/1240815.

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