Results 111 to 120 of about 172,917 (289)

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

open access: yesAdvanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich   +6 more
wiley   +1 more source

Stiffness and Damping Properties of LPBF-Fabricated TC4 Alloy Beams Incorporating Self-Sealing Powder and Lattice Structures

open access: yesMetals
Laser powder bed fusion (LPBF) provides an effective method for the preparation of self-sealing powder damping components, but the introduction of cavities simultaneously leads to a decrease in the mechanical properties of the components.
Yong Xu   +9 more
doaj   +1 more source

Degradation effects in sc-Si PV modules subjected to natural and induced ageing after several years of field operation [PDF]

open access: yes, 2012
This paper presents ageing effects observed in sc-Si PV modules operating in field conditions for 18 and over 22 years. The effects of both natural ageing processes and induced ageing by external agents, causing partial or total shading of cells for a ...
Kaplani, E.
core  

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

Research on Sealing Performance of High Temperature Resistant Flat Rubber for Roller Cone Bit

open access: yesShiyou jixie, 2020
Commonly used metal seals for roller cone bearings are not only sensitive to vibration with inferior sealing performance, but also have problems like high manufacturing cost, large space occupation and uneven stress and deformation of seals. Therefore, a
Li Guangqiao   +4 more
doaj  

Correction to: Left atrial appendage sealing performance of the Amplatzer Amulet and Watchman FLX device. [PDF]

open access: yesJ Interv Card Electrophysiol, 2023
Korsholm K   +6 more
europepmc   +1 more source

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

open access: yesAdvanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao   +5 more
wiley   +1 more source

Study on the Airtight Seal Performance of Premium Connection for Integrated Tubing String

open access: yesShiyou jixie, 2017
The integrated tubing string for fracturing and production for gas wells endures greatly changed loads in various working conditions, which greatly influences the sealing performance of the string.
Li Jia   +4 more
doaj  

Home - About - Disclaimer - Privacy