Results 81 to 90 of about 387,699 (289)

The measurement of resonant electrical circuit parameters

Известия высших учебных заведений. Поволжский регион:Технические науки, 2021
Background. The purpose of the study is to develop techniques for measuring three- and four-element resonant electrical circuit parameters. Materials and methods.
A.V. Svetlov, N.M. Nguyen
doaj   +1 more source

Additive Gaussian Process Regression for Predictive Design of High‐Performance, Printable Silicones

Advanced Engineering Materials, EarlyView.
A chemistry‐aware design framework for tuning printable polydimethylsiloxane (PDMS) for vat photopolymerization (VPP) is developed using additive Gaussian process (GP) modeling. Polymer network mechanics informs variable groupings, feasible formulation constraints, and interaction variables.
Roxana Carbonell, Martha Leach, Hongtao Song, Carolyn Seepersad   +3 more
wiley   +1 more source

Development and Experimental Validation of a Supercapacitor Frequency Domain Model for Industrial Energy Applications Considering Dynamic Behaviour at High Frequencies

Energies, 2020
Supercapacitors, one of the most promising energy storage technologies for high power density industrial applications, exchange the energy mostly through power electronic converters, operating under high frequency components due to the commutation.
Gustavo Navarro, Jorge Nájera, Jorge Torres, Marcos Blanco, Miguel Santos, Marcos Lafoz   +5 more
doaj   +1 more source

The effect of electron dielectric response on the quantum capacitance of graphene in a strong magnetic field

, 2013
The quantum capacitance of graphene can be negative when the graphene is placed in a strong magnetic field, which is a clear experimental signature of positional correlations between electrons.
Geim, A. K., Kretinin, A. V., Novoselov, K. S., Shklovskii, B. I., Skinner, Brian, Yu, G. L.   +5 more
core   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Extraordinary Capacitance and Stability of Carbon Electrode for Electrochemical Capacitors

Electrochemistry
To further improve the energy density and reliability of carbon based electrochemical capacitors, such as electric double-layer capacitors and lithium ion capacitors, it is necessary to increase both the electric double layer capacitance and stability of
Soshi SHIRAISHI, Koki URITA, Hirotomo NISHIHARA, Takeshi KONDO   +3 more
doaj   +1 more source

Evaluation of a gate capacitance in the sub-aF range for a chemical field-effect transistor with a silicon nanowire channel

, 2011
An evaluation of the gate capacitance of a field-effect transitor (FET) whose channel length and width are several ten nanometer, is a key point for sensors applications. However, experimental and precise evaluation of capacitance in the aF range or less
Clement, Nicolas, Fujiwara, Akira, Nishiguchi, Katsuhiko, Vuillaume, Dominique   +3 more
core   +4 more sources

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Current Sensorless Online Capacitor Parameter Estimation Method in Buck Converters Based on Large Signal Profile Considering Magnetic Saturation

IEEE Open Journal of Power Electronics
Large signal profiles are commonly utilized for estimating capacitor parameters in power converters, which typically requires current information. Installation of current sensors in practical power converters could be inconvenient and expensive. Existing
Xinguo Zhang, Xue Su, Yilin Wang, Haoyu Wang, Yu Liu   +4 more
doaj   +1 more source

Effects of phase leg reactor, submodule capacitor, number of submodules and switching frequency on harmonics in modular multilevel converters

The Journal of Engineering, 2019
The modular multilevel converter (M2C) will play an important role in the future especially for high-voltage and high-power applications where controllability is a key factor. Although a lot of research has been carried out on this topic, little has been
Ara Bissal, Waqas Ali, Ilknur Colak
doaj   +1 more source