Results 1 to 10 of about 34,475 (219)

Coupled D33 Mode-Based High Performing Bio-Inspired Piezoelectric MEMS Directional Microphone [PDF]

open access: goldApplied Sciences, 2021
Microelectromechanical system (MEMS) directional microphones have been identified as having use in multi-projected virtual reality applications such as virtual meetings for projecting cameras. In these applications, the acoustic sensitivity plays a vital
Ashiqur Rahaman, Haeil Jung, Byungki Kim
doaj   +2 more sources

Piezoelectric characteristics of PVA/DL-alanine polycrystals in d33 mode

open access: goldiScience, 2023
Summary: In this study, polyvinyl alcohol (PVA)-mixed DL-alanine (PVA/DL-alanine) polycrystals are fabricated, and their piezoelectric characteristics in the d33 mode are investigated. The d33 piezoelectric coefficients of the PVA/DL-alanine polycrystals
Buil Jeon, Dongsoo Han, Giwan Yoon
doaj   +2 more sources

Achieving Temperature‐Insensitive High Piezoelectricity by Reentrant Relaxor Transition [PDF]

open access: yesAdvanced Science
Although precision sensors and actuators demand piezoelectric materials with temperature‐insensitive high piezoelectricity (d33), achieving such a property is physically challenging because high d33 relies on tuning the material to the vicinity of a ...
Yang Yang   +10 more
doaj   +2 more sources

On the measurement of piezoelectric d33 coefficient of soft thin films under weak mechanical loads: A rapid and affordable method

open access: goldMaterials & Design
Thanks to their intrinsic flexibility, energy efficiency and high portability, soft piezoelectric thin films represent the most effective technological approach for wearable devices to monitor health conditions.
Gaia de Marzo   +10 more
doaj   +2 more sources

Molecular Insights into the Interaction of Cathepsin D and Iron in Chronic Wound Healing: Exploring Therapeutic Potential and Mechanisms [PDF]

open access: yesBiomedicines
Background: Chronic wounds, such as diabetic ulcers, often fail to progress through healing due to persistent inflammation, infections, and extracellular matrix (ECM) imbalances.
María Rodríguez-Moreno, Isabel Legaz
doaj   +2 more sources

Accelerated design of lead-free high-performance piezoelectric ceramics with high accuracy via machine learning

open access: yesJournal of Advanced Ceramics, 2023
The piezoelectric performance serves as the basis for the applications of piezoelectric ceramics. The ability to rapidly and accurately predict the piezoelectric coefficient (d33) is of much practical importance for exploring high-performance ...
Wei Gu   +5 more
doaj   +1 more source

The Impact of Family and Child-Allowances on Income Inequality in Poland. Gini Decomposition by Income Sources

open access: yesFolia Oeconomica Stetinensia, 2021
Research background: This paper analyses how different income sources affect the level of inequality in Poland, with focus on the role of family and children related allowances in decreasing income inequalities in 2015–2017.
Wędrowska Ewa, Muszyńska Joanna
doaj   +1 more source

Income Inequalities in EU Countries: Gini Indicator Analysis

open access: yesECONOMICS, 2021
Franklin Delano Roosevelt said that “the test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.” According to the World Economic Forum (2021), income ...
Kolluru Mythili, Semenenko Tetiana
doaj   +1 more source

Thickness-Dependent Piezoelectric Property from Quasi-Two-Dimensional Zinc Oxide Nanosheets with Unit Cell Resolution

open access: yesResearch, 2021
A quantitative understanding of the nanoscale piezoelectric property will unlock many application potentials of the electromechanical coupling phenomenon under quantum confinement.
Corey Carlos   +4 more
doaj   +1 more source

Enhanced Electrical Properties of Lead-Free Piezoelectric KNLN-BZ-BNT Ceramics With the Modification of Sm3+ Ions

open access: yesFrontiers in Materials, 2021
Environment-friendly lead-free piezoelectric ceramics with great properties and high thermal stability are desired in the industry. In this work, the Sm3+-modified lead-free 0.915(K0.45Na0.5Li0.05)NbO3–0.075BaZrO3–0.01(Bi0.5Na0.5)TiO3 (KNLN-BZ-BNT ...
Yi Quan   +9 more
doaj   +1 more source

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