Results 161 to 170 of about 199,086 (341)

A Unified Enhanced Quasi‐Electrostatic 3D Charge Model for Accurate Prediction and Design Optimization of Contact‒Separation Triboelectric Nanogenerators

open access: yesAdvanced Materials Technologies, EarlyView.
New theoretical model for vertical contact and separation mode triboelectric nanogenerator is proposed. Detailed derivation process and results are discussed. Numerical solutions and parametric studies are presented. Calculated results are validated by experimental outcomes.
Seokjin Kim   +2 more
wiley   +1 more source

Highly Reliable Hf1‐XZrXO2 with Ultra‐Low Operation Voltage (< 1 V) Enabled by Stoichiometric Control of Tungsten Oxide Interfacial Layer

open access: yesAdvanced Materials Technologies, EarlyView.
This study investigates the impact of the oxidation state of the WOX interfacial layer (IL) on its conductance and the associated voltage drop, aiming to mitigate fatigue and imprint in HZO‐based devices. As a result, through scaling the ferroelectric layer and engineering ILs, reduced wake‐up, functional operation exceeding 1011 cycles, and data ...
Mostafa Habibi   +9 more
wiley   +1 more source

High Precision Measurements of the Permittivity of Water in the Microwave Range

open access: hybrid, 1990
Heinz‐Jürgen Steinhoff   +6 more
openalex   +2 more sources

Autodrop‐Enabled Aqueous Deposition of BiVO4–FePO4 Photoanodes for Stable Water Splitting

open access: yesAdvanced Materials Technologies, EarlyView.
This study presents the Autodrop method, an automated SILAR process, for fabricating BiVO4−FePO4 photoanodes. The study focuses on the effect of the preparation parameters on the properties of BiVO4. The method improves film uniformity and preparation time. Photoanodes are optimized for OER activity with the addition of FePO4, achieving higher and more
Roberto Altieri   +6 more
wiley   +1 more source

Structural, dielectric, electrical and piezoelectric properties of Ba4SrRTi3V7O30 (R=Sm, Dy) ceramics

open access: yesOpen Physics, 2008
Sahoo Priyadarshini   +3 more
doaj   +1 more source

Permittering og sykefravær

open access: yes, 2004
Målet med denne rapporten var å finne ut om det er noen samvariasjon mellom sykefravær og permittering. Bakgrunnen er at lønnstakere har et ikke ubetydelig inntektsbortfall ved en permittering, noe som gir et økonomisk incitament til å bli sykemeldt i stedet.
Næsheim, Helge Nome, Pedersen, Trond
openaire   +1 more source

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