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Artículos de revistas sobre el tema "Nonlinear chip impedance"

Autor: Grafiati
Publicado: 23 de noviembre de 2024
Última modificación: 31 de julio de 2025

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1

Yamamoto, Takatoki, Sangwook Lee, and Teruo Fujii. "Measurements of Nonlinear Electrical Impedances by Virtue of Induced Conformational Changes in DNAs." Journal of Robotics and Mechatronics 22, no. 5 (2010): 601–7. http://dx.doi.org/10.20965/jrm.2010.p0601.

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A method for label-free electrical impedance sensing of DNA is proposed, and experimentally demonstrated using a micro Electrical Impedance Spectroscopy (µ- EIS) device. The method features not only the detection of DNA without any labelling, but also the control of the conformation that would enhance the electrical impedance signal. In order to conduct semiautomated measurements controlled by an external PC, a microfluidic chip made of a silicone elastomer of polydimethylsiloxane (PDMS), a measurement chip embedded with micro-electrodes, and a micropump chip are fully integrated in the µ-EIS
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2

Ezenkova, D., D. Moskalev, N. Smirnov, et al. "Broadband SNAIL parametric amplifier with microstrip impedance transformer." Applied Physics Letters 121, no. 23 (2022): 232601. http://dx.doi.org/10.1063/5.0129862.

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Josephson parametric amplifiers are an important part of a modern superconducting quantum computing platform and squeezed quantum states generation devices. Traveling wave and impedance-matched parametric amplifiers provide broad bandwidth for high-fidelity single-shot readout of multiple qubit superconducting circuits. Here, we present a quantum-limited 3-wave-mixing parametric amplifier based on superconducting nonlinear asymmetric inductive elements (SNAILs), whose useful bandwidth is enhanced with an on-chip two-section impedance-matching circuit based on microstrip transmission lines. The
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3

Kitsyuk, Evgeny P., Renat T. Sibatov, and Vyacheslav V. Svetukhin. "Memory Effect and Fractional Differential Dynamics in Planar Microsupercapacitors Based on Multiwalled Carbon Nanotube Arrays." Energies 13, no. 1 (2020): 213. http://dx.doi.org/10.3390/en13010213.

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The development of portable electronic devices has greatly stimulated the need for miniaturized power sources. Planar supercapacitors are micro-scale electrochemical energy storage devices that can be integrated with other microelectronic devices on a chip. In this paper, we study the behavior of microsupercapacitors with in-plane interdigital electrodes of carbon nanotube array under sinusoidal excitation, step voltage input and sawlike voltage input. Considering the anomalous diffusion of ions in the array and interelectrode space, we propose a fractional-order equivalent circuit model that
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4

Andía, Vera Gianfranco, Dahmane Allane, Apostolos Georgiadis, Ana Collado, Ivan Duroc, and Smail Tedjini. "Cooperative Integration of Harvesting RF Sections for Passive RFID Communication." IEEE Transactions on Microwave Theory and Techniques 63, no. 12 (2015): 4556–66. https://doi.org/10.5281/zenodo.45454.

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This paper proposes a novel cooperative composite energy harvesting system that consists in the association of a traditional passive UHF Radio Frequency Identification (RFID) chip with an Electromagnetic Energy Harvesting Circuit (EEH-C). The objective is to exploit the i-v nonlinearity of the rectifier by applying a signal with time-varying envelope in order to improve the RF-to-dc conversion efficiency. Thanks to a multisource configuration, i.e., an RFID reader at 0.868 GHz and an external source at 2.45 GHz, the EEH-C is able to rectify the 3<sup>rd</sup> harmonic product of the RFID chip,
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5

Wang, Yingying, Zuhuo Liang, Bolin Jin, and Jindi Pang. "A Thermal Impedance Model for IGBT Modules Considering the Nonlinear Thermal Characteristics of Chips and Ceramic Materials." Electronics 13, no. 22 (2024): 4465. http://dx.doi.org/10.3390/electronics13224465.

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The traditional method of calculating junction temperature does not consider the dependence of a material’s thermal conductivity on temperature, in which the thermal conductivity changes with temperature. However, with an increase in junction temperature, the temperature sensitivity (TS) will have a more significant impact on the actual temperature of chips. This study established an improved IGBT equivalent thermal impedance model that considers the nonlinear characteristics of the TS of chips and ceramic materials. The Fourier series analysis method was used to obtain the heat flux density c
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6

Dragoman, Mircea, Adrian Dinescu, Martino Aldrigo, et al. "Graphene Monolayer Nanomesh Structures and Their Applications in Electromagnetic Energy Harvesting for Solving the Matching Conundrum of Rectennas." Nanomaterials 14, no. 19 (2024): 1542. http://dx.doi.org/10.3390/nano14191542.

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In this paper, we investigate various graphene monolayer nanomesh structures (diodes) formed only by nanoholes, with a diameter of just 20 nm and etched from the graphene layer in different shapes (such as rhombus, bow tie, rectangle, trapezoid, and triangle), and their electrical properties targeting electromagnetic energy harvesting applications. In this respect, the main parameters characterizing any nonlinear device for energy harvesting are extracted from tens of measurements performed on a single chip containing the fabricated diodes. The best nano-perforated graphene structure is the tr
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7

Andia-Vera, Gianfranco, Shankar Nawale, Yvan Duroc, and Smail Tedjini. "Exploitation of the nonlinearities in electromagnetic energy harvesting and passive UHF RFID." Wireless Power Transfer 3, no. 1 (2016): 43–52. http://dx.doi.org/10.1017/wpt.2016.1.

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In this paper, some theoretical aspects and experimental results are discussed with the aim to provide supplementary dc energy to radio frequency identification (RFID) tags by exploiting the nonlinear nature of rectifier devices. Three nonlinear phenomena are treated: (i) the impedance power dependence, (ii) the harmonic production, and (iii) the dependence on the radio frequency waveform. The novelty of the work relies on proposing a double rectifier composite system in where the nonlinearity of each rectifier is exploited to enhance the global powering performance of the system. Using the pa
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8

Wang, Lu. "Optimization of Voltage Dynamic Performance at Inverter Output with Machine Learning and Intelligent Virtual Impedance." Mobile Information Systems 2022 (August 17, 2022): 1–13. http://dx.doi.org/10.1155/2022/5488103.

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With the continuous improvement of industrial production and manufacturing level, all kinds of equipment are developing in the direction of refinement and precision, especially the equipment manufacturing industry such as automobile manufacturing, equipment, integrated circuits, chip manufacturing, and other semiconductor industries. An intelligent virtual resistance control strategy based on machine research is proposed for rational power distribution and cycle suppression when multiple inverters are operated in parallel in low-voltage microgrids. Based on this, the control strategy of tempor
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9

Guo, Huaixin, Tangsheng Chen, and Shang Shi. "Transient Simulation for the Thermal Design Optimization of Pulse Operated AlGaN/GaN HEMTs." Micromachines 11, no. 1 (2020): 76. http://dx.doi.org/10.3390/mi11010076.

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The thermal management and channel temperature evaluation of GaN power amplifiers are indispensable issues in engineering field. The transient thermal characteristics of pulse operated AlGaN/GaN high electron mobility transistors (HEMT) used in high power amplifiers are systematically investigated by using three-dimensional simulation with the finite element method. To improve the calculation accuracy, the nonlinear thermal conductivities and near-junction region of GaN chip are considered and treated appropriately in our numerical analysis. The periodic transient pulses temperature and temper
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10

Freisa, Martina, Claire Poujouly, Isabelle Le Potier, et al. "Investigating the Impact of Blocking Monolayer Architecture on the Performance of Electrochemical DNA Biosensors in Microfluidic Channels." ECS Meeting Abstracts MA2024-02, no. 64 (2024): 4268. https://doi.org/10.1149/ma2024-02644268mtgabs.

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An electrochemical nucleic acid biosensor typically involves the immobilization of DNA strands onto a surface, which serves as a recognition element for specific DNA or RNA target molecules.1-3 DNA strands can be single-stranded or double-stranded, and their immobilization onto a surface is crucial for sensing applications. This allows the formation of monolayers which is often used to prevent nonspecific adsorption of interfering molecules onto the surface. This layer acts as a barrier, allowing only specific interactions with the DNA target molecules or analytes of interest. Traditionally, r
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11

Nguyen, Ngoc-Anh, Olivier Schneegans, Jouhaiz Rouchou, et al. "(G02 Best Presentation Award Winner) Elaboration and Characterization of CMOS Compatible, Pico-Joule Energy Consumption, Electrochemical Synaptic Transistors for Neuromorphic Computing." ECS Meeting Abstracts MA2022-01, no. 29 (2022): 1293. http://dx.doi.org/10.1149/ma2022-01291293mtgabs.

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Non-Von Neumann computing application constituted by artificial synapses based on electrochemical random-access memory (ECRAM) has aroused tremendous attention owing to its capability to perform parallel operations, thus reducing the cost of time and energy spent [1-3]. Existing ECRAM synapses comprise two-terminal memristors and three-terminal synaptic transistors (SynT). While low cost, scalability, and high density are the highlights for memristors, their nonlinear, asymmetric state modulation, high ON current withdrawal, and sneak path in crossbar array integration prevent them from becomi
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12

Dong, Tian, Jiujiu Liang, Sarah Camayd-Muñoz, et al. "Ultra-low-loss on-chip zero-index materials." Light: Science & Applications 10, no. 1 (2021). http://dx.doi.org/10.1038/s41377-020-00436-y.

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AbstractLight travels in a zero-index medium without accumulating a spatial phase, resulting in perfect spatial coherence. Such coherence brings several potential applications, including arbitrarily shaped waveguides, phase-mismatch-free nonlinear propagation, large-area single-mode lasers, and extended superradiance. A promising platform to achieve these applications is an integrated Dirac-cone material that features an impedance-matched zero index. Although an integrated Dirac-cone material eliminates ohmic losses via its purely dielectric structure, it still entails out-of-plane radiation l
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13

Wang, Shanshan, Qiong Wei, Tao Zhu, et al. "CD4+ T Cell Counting by Impedance Measurement on a Chip with Fluidic Electrodes." International Journal of Nonlinear Sciences and Numerical Simulation 13, no. 5 (2012). http://dx.doi.org/10.1515/ijnsns-2012-0400.

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AbstractA practical label-free method for counting CD4+ T cells is proposed on the basis of a microfluidic chip with fluidic electrodes. With the help of hydrodynamic focusing, two sheath flows of KCl solution, serving as electric conductors to replace solid metal electrodes, are used to squeeze the cell suspension. By measuring the electrical impedances between the fluidic electrodes, a linear relationship is found between the logarithmic value of cell concentration and the impedance value (R
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14

Li, Yang, C. T. Chan, and Eric Mazur. "Dirac-like cone-based electromagnetic zero-index metamaterials." Light: Science & Applications 10, no. 1 (2021). http://dx.doi.org/10.1038/s41377-021-00642-2.

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AbstractMetamaterials with a Dirac-like cone dispersion at the center of the Brillouin zone behave like an isotropic and impedance-matched zero refractive index material at the Dirac-point frequency. Such metamaterials can be realized in the form of either bulk metamaterials with efficient coupling to free-space light or on-chip metamaterials that are efficiently coupled to integrated photonic circuits. These materials enable the interactions of a spatially uniform electromagnetic mode with matter over a large area in arbitrary shapes. This unique optical property paves the way for many applic
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15

Holman, Nathan, D. Rosenberg, D. Yost, et al. "3D integration and measurement of a semiconductor double quantum dot with a high-impedance TiN resonator." npj Quantum Information 7, no. 1 (2021). http://dx.doi.org/10.1038/s41534-021-00469-0.

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AbstractOne major challenge to scaling quantum dot qubits is the dense wiring requirements, making it difficult to envision fabricating large 2D arrays of nearest-neighbor-coupled qubits necessary for error correction. We describe a method to ameliorate this issue by spacing out the qubits using superconducting resonators facilitated by 3D integration. To prove the viability of this approach, we use integration to couple an off-chip high-impedance TiN resonator to a double quantum dot in a Si/SiGe heterostructure. Using the resonator as a dispersive gate sensor, we tune the device down to the
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16

Gallahue, Molly M., Leah Salditch, Madeleine C. Lucas, et al. "A study on the effect of site response on California seismic hazard map assessment." Frontiers in Earth Science 10 (September 26, 2022). http://dx.doi.org/10.3389/feart.2022.931340.

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Prior studies have repeatedly shown that probabilistic seismic hazard maps from several different countries predict higher shaking than that observed. Previous map assessments have not, however, considered the influence of site response on hazard. Seismologists have long acknowledged the influence of near-surface geology, in particular low-impedance sediment layers, on earthquake ground-motion at frequencies of engineering concern. Although the overall effects of site response are complex, modern ground-motion models (GMMs) account for site effects using terms based on VS30, the time-averaged
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