Results 51 to 60 of about 762 (173)

Measurement Precision of a Planar Nanopositioning Machine with a Range of Motion of Ø100 mm

Applied Sciences, 2022
This work deals with various investigations into the accuracy of a newly developed planar nanopositioning machine. This machine, called Nanofabrication Machine 100 (NFM-100), has a positioning range of 100 mm in diameter.
Jaqueline Stauffenberg, Ingo Ortlepp, Johannes Belkner, Denis Dontsov, Enrico Langlotz, Steffen Hesse, Ivo Rangelow, Eberhard Manske   +7 more
doaj   +1 more source

Plasmonic Bi‐Cavity Nanostructure for Efficient Light Collection and Localization

Analysis &Sensing, Volume 6, Issue 2, March 2026.
Co‐tuning the plateau and pyramid lengths of a pyramid‐on‐plateau nanostructure creates a hybrid antenna‐cavity that efficiently couples low‐NA excitation and funnels energy to the apex, increasing nano‐Raman signal and enabling TERS in geometries previously inaccessible to high‐NA objectives.Tip‐enhanced Raman spectroscopy (TERS) typically relies on ...
Vitor Monken, Raul Correa, Hudson Miranda, Cassiano Rabelo, Rafael Nadas, Thiago L. Vasconcelos, Luiz Gustavo Cancado, Ado Jorio   +7 more
wiley   +1 more source

Development of a XYθz 3-DOF nanopositioning stage with linear displacement amplification device

MATEC Web of Conferences, 2017
The main purpose of this study is to develop a XYθZ 3-DOF nanopositioning stage with linear displacement amplification device. This stage is used by three groups of linear displacement amplification device to composition, and thus achieves precise XYθZ 3-
Chu Chih-Liang, Chen Hung-Chi, Sie Ming-Han   +2 more
doaj   +1 more source

Spatio‐Temporal Diversity of Calcium Activity in Microglia

Glia, Volume 74, Issue 3, March 2026.
Ca2+ activity mostly occurs in microglial processes and stays localized. When it spreads, it often shows a directional bias and is constrained by branch points. Activity strongly relies on P2Y12 receptors and is shaped by neuronal activity. ABSTRACT Microglia, the brain's innate immune cells, possess complex, highly motile branched processes. These act
Hiroshi Horiuchi, Dennis Lawrence Cheung, Junko Ishida, Junichi Nabekura   +3 more
wiley   +1 more source

Fast Parameter Identification of the Fractional-Order Creep Model

Actuators
In this study, a parameter identification approach for the fractional-order piezoelectric creep model is proposed. Indeed, creep is a wide-impacting phenomenon leading to time-dependent deformation in spite of constant persistent input.
Shabnam Tashakori, Andres San-Millan, Vahid Vaziri, Sumeet S. Aphale   +3 more
doaj   +1 more source

Macrophages Mediate Mesoscale Brain Mechanical Homeostasis

Advanced Materials, Volume 38, Issue 6, 27 January 2026.
We investigated the role of infiltrating immune cells in sculpting the developing brain. Using Brillouin microscopy and active microrheology, we found microglia actively maintain tissue viscoelasticity. Moreover, colony stimulating factor one receptor (CSF1R)‐driven stromal remodeling alters brain mechanics in vivo. These findings link immune activity,
Woong Young So, Bailey Johnson, Patricia B. Gordon, Kevin S. Bishop, Hyeyeon Gong, Hannah A Burr, Jack Rory Staunton, Chenchen Handler, Khanh Loan Ly, Raman Sood, Giuliano Scarcelli, Kandice Tanner   +11 more
wiley   +1 more source

Narrow Linewidth Spontaneous and Lasing Emissions from Open‐Access Microcavity‐Embedded Perovskite Quantum Dots

Advanced Optical Materials, Volume 14, Issue 1, 9 January 2026.
Continuous‐wave lasing from a small number of perovskite quantum dots is achieved by coupling their photoluminescence to open‐access curved dielectric cavities. This geometry confines their emission into a single optical mode, sharply narrowing linewidths in both spontaneous and lasing regimes.
Sunny Tiwari, Amit R. Dhawan, SangHyuk Park, Sangeun Cho, Gareth S. Jones, Jason M. Smith, Robert A Taylor, Tristan Farrow   +7 more
wiley   +1 more source

Geometrical Characterisation of a 2D Laser System and Calibration of a Cross-Grid Encoder by Means of a Self-Calibration Methodology

Sensors, 2017
This article presents a self-calibration procedure and the experimental results for the geometrical characterisation of a 2D laser system operating along a large working range (50 mm × 50 mm) with submicrometre uncertainty.
Marta Torralba, Lucía C. Díaz-Pérez, Margarita Valenzuela, José A. Albajez, José A. Yagüe-Fabra   +4 more
doaj   +1 more source

On the Disturbance Rejection of a Piezoelectric Driven Nanopositioning System

IEEE Access, 2020
Nanopositioning systems are very popular and playing an increasingly vital role in micro and nano-scale positioning industry due to their unique ability to achieve high-precision and high-speed operation.
Wei Wei, Pengfei Xia, Wenchao Xue, Min Zuo   +3 more
doaj   +1 more source

Design Optimization for the Measurement Accuracy Improvement of a Large Range Nanopositioning Stage

Sensors, 2016
Both an accurate machine design and an adequate metrology loop definition are critical factors when precision positioning represents a key issue for the final system performance.
Marta Torralba, José Antonio Yagüe-Fabra, José Antonio Albajez, Juan José Aguilar   +3 more
doaj   +1 more source