Results 161 to 170 of about 34,351 (266)

Identification of Two Dielectric Relaxations in Oleic-Rich Oils Within the 50-900 MHz Range Using a Low-Cost Method. [PDF]

Foods
Fita IC, Cruz JM.
europepmc   +1 more source

In Situ Construction of n‐Type SnOx Interlayer by Converting Surface Sn4+ for Efficient Tin Perovskite Solar Cells

Advanced Science, EarlyView.
An n‐type SnOx layer is constructed in situ on tin perovskite surfaces by converting surface‐enriched Sn4+ species through a one‐step SnCl2·2H2O treatment. This strategy enhances interfacial charge extraction and suppresses defect‐induced degradation, boosting the power conversion efficiency from 13.21% to 16.02% while maintaining negligible efficiency
Feng Yang, Yang Yang, Kun Wang, Jingyuan Tian, Peimeng Wang, Ziyong Kang, Yang Guo, Wei Tian, Hongqiang Wang, Yu Tong   +9 more
wiley   +1 more source

Cross-material physics-informed machine learning framework for optimizing nanofiller loading in epoxy nanocomposites for high-voltage insulation. [PDF]

Sci Rep
Ezzat M, Ramadan M, Abd-Allah MA, El-Gamal SMA, Said A.   +4 more
europepmc   +1 more source

Detection of Degraded Formulated BaTiO3 Induced by Oxygen Vacancy Migration Using Ultrasonic Attenuation

Advanced Science, EarlyView.
Oxygen vacancy migration is a key degradation mechanism for the majority of MLCCs. There are limitations with spatially identifying regions of a capacitor that have degraded due to oxygen vacancy migration. This work showcases ultrasonic attenuation as a non‐electrical and nondestructive technique of identifying oxygen vacancy degraded regions of an ...
Haley N. Jones, Clive A. Randall, Andrea P. Argüelles, Susan Trolier‐McKinstry   +3 more
wiley   +1 more source

High-Entropy Design of Perovskite Quantum Paraelectrics with Improved Dielectric Properties in GHz and THz Bands. [PDF]

ACS Appl Mater Interfaces
Hu W, Tang X, Baxter H, Koval V, Banerjee K, Reece MJ, Yang B, Yan H.   +7 more
europepmc   +1 more source

Optimization Techniques on Permittivity Distribution in Permittivity Graded Solid Insulators

Optimization Techniques on Permittivity Distribution in Permittivity Graded Solid Insulators
We have proposed a new concept for solid insulation; an application of FGM (Functionally Graded Materials). By controlling the distribution of dielectric permittivity inside solid insulators, we can achieve the efficient field control with keeping simple configuration of solid insulators.
openaire   +1 more source

Heat‐to‐Electricity Conversion Using Barium Strontium Titanate Multilayer Capacitors

Advanced Science, EarlyView.
Lead‐free barium strontium titanate multilayer capacitors convert waste heat into electricity via the Olsen electro‐thermodynamic cycle. These capacitors achieve an energy density of 3.7 J cm−3, comparable to the performance of lead‐based ceramics. Their high dielectric strength and broad operating temperature window below 100°C make them practical for
Fan Ni, Junning Li, Uros Prah, Youri Nouchokgwe, Yves Fleming, Ashwath Aravindhan, Moiz Khalil, Torsten Granzow, Sakyo Hirose, Veronika Kovacova, Emmanuel Defay   +10 more
wiley   +1 more source

Positioning-robust broadband microwave transmission as a minimal-complexity approach to thoracic dielectric sensing: simulation and phantom analysis. [PDF]

Sci Rep
Ślot M, Zasada I, Olejniczak W, Sakowicz A, Bielecka-Dąbrowa A.   +4 more
europepmc   +1 more source

Fusing Direct and Indirect Measurements Through Multi‐Fidelity Learning For Accelerated Electrocaloric Materials Discovery

Advanced Science, EarlyView.
A multi‐fidelity framework integrates sparse direct and abundant indirect electrocaloric measurements. Multi‐objective active learning accelerates BaTiO3‐based electrocaloric materials discovery at –70∘C$^{\circ }{\rm C}$. A diffuse transition enables an electrocaloric strength of 0.06×$\times$10−6 Km/V at –70℃ with an operational temperature span of ...
Bo Wang, Pengfei Dang, Yuan Tian, Zhengwang He, Wei Gu, Lixue Zhang, Turab Lookman, Yumei Zhou, Dezhen Xue   +8 more
wiley   +1 more source

Electrical and Dielectric Properties of ZnO-BaO-V₂O₅ Glasses. [PDF]

Materials (Basel)
Tasheva T, Bošák O, Kubliha M.
europepmc   +1 more source