Results 81 to 90 of about 3,419 (196)

Vortex Ratchet Effect in Superconductor Open Nanotubes and 3D Nanoflakes

open access: yesphysica status solidi (RRL) – Rapid Research Letters, Volume 19, Issue 12, December 2025.
Magnetic flux quanta in 3D superconductor nanotubes move in the regions where the normal component of the applied magnetic field is close to maximum. Asymmetric pinning sites placed in these areas result in an enhanced vortex ratchet effect compared to planar systems.
Igor Bogush   +3 more
wiley   +1 more source

Structural identification of cubic iron-oxide nanocrystal mixtures: X-ray powder diffraction versus quasi-kinematic transmission electron microscopy [PDF]

open access: yes, 2008
Two novel (and proprietary) strategies for the structural identification of a nanocrystal from either a single high-resolution (HR) transmission electron microscopy (TEM) image or a single precession electron diffraction pattern are proposed and their ...
Moeck, Peter
core   +2 more sources

Silicon Microcantilevers with ZnO Nanorods/Chitosan-SAMs Hybrids on Its Back Surface for Humidity Sensing

open access: yesProceedings, 2018
This paper reports a piezoresistive silicon microcantilever-based gravimetric humidity sensor, where a ZnO nanofilm (200 nm) and ZnO nanorods (NRs) with different lengths (1.5 µm and 6 µm) modified with chitosan self-assembled monolayers (SAMs)
Jiushuai Xu   +6 more
doaj   +1 more source

Microscopic Acid‐Induced Degradation and Elemental Release From Thermoformed and 3D‐Printed Orthodontic Aligners in a Simulated Gastric Environment

open access: yesJournal of Biomedical Materials Research Part B: Applied Biomaterials, Volume 113, Issue 10, October 2025.
ABSTRACT Clear aligners have revolutionized orthodontic treatment, yet concerns are rising about microplastics (MPs) and nanoplastics (NPs) released from these devices through mechanical wear and chemical degradation. Once ingested, these particles may undergo structural and chemical transformations in the gastrointestinal tract, particularly under ...
Piero Antonio Zecca   +8 more
wiley   +1 more source

Полирование прецизионных поверхностей оптоэлектронных элементов из сапфира [PDF]

open access: yes, 2015
В результате исследования закономерностей полирования плоских поверхностей элементов из монокристаллического сапфира обоснована возможность использования в качестве критерия эффективности съема обрабатываемого материала приведенной энергии переноса и ...
Филатов, А. Ю.
core  

Flicker Noise in Bilayer Graphene Transistors

open access: yes, 2008
We present the results of the experimental investigation of the low - frequency noise in bilayer graphene transistors. The back - gated devices were fabricated using the electron beam lithography and evaporation.
Balandin, A. A.   +6 more
core   +1 more source

Time‐Resolved Cathodoluminescence Spectroscopy of Oxygen‐Related Defects in AlN Layers

open access: yesphysica status solidi (b), Volume 262, Issue 10, October 2025.
High‐temperature annealing significantly improves the crystal quality of sputter‐deposited AlN templates, but at the same time introduces oxygen‐related defects. Their origin is investigated using time‐resolved cathodoluminescence spectroscopy. Furthermore, these defects impact the deep‐UV transparency of the AlN templates.
Barbara Szafranski   +5 more
wiley   +1 more source

Multiscale Fabrication and Characterization of a NEMS Force Sensor

open access: yesAdvanced Materials Technologies, Volume 10, Issue 4, February 19, 2025.
Fabricated silicon nanowires integrated with MEMS shuttle on a silicon‐on‐insulator wafer using novel fabrication technology enable the device to detect subtle multi‐axis forces. Gage factor tests show static manipulation response, while dynamic analysis indicates robustness and high resonant frequency.
Masoud Jedari Ghourichaei   +17 more
wiley   +1 more source

Co-Nanomet: Co-ordination of Nanometrology in Europe [PDF]

open access: yes, 2011
Nanometrology is a subfield of metrology, concerned with the science of measurement at the nanoscale level. Today’s global economy depends on reliable measurements and tests, which are trusted and accepted internationally. It must provide the ability to
Boyd, Rob   +19 more
core  

Pinhole microLED Array as Point Source Illumination for Miniaturized Lensless Cell Monitoring Systems

open access: yesProceedings, 2018
Pinhole‐shaped light‐emitting diode (LED) arrays with dimension ranging from 100 μm down to 5 μm have been developed as point illumination sources. The proposed microLED arrays, which are based on gallium nitride (GaN) technology and emitting in the blue
Shinta Mariana   +7 more
doaj   +1 more source

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