Results 51 to 60 of about 5,555 (236)
Tehnički GlasnikIn this study, we present the optimization of a Fabry-Perot interferometer with a differential signal utilized as the laser encoder to meet the stringent demands of nanopositioning.
Syuan-Cheng Chang +2 more
doaj +1 more source
Signal transformation approach to fast nanopositioning
Review of Scientific Instruments, 2009 High bandwidth, high resolution positioning is a significant enabling tool for nanotechnology. Unfortunately, in a typical nanopositioner operating in closed loop, higher bandwidth results in increased sensitivity to measurement noise and hence reduced resolution. In this article we present a technique that allows high-precision tracking of repetitive,
Sebastian, Abu, Moheimani, S. O. Reza
openaire +3 more sources
IET Cyber-systems and Robotics, 2020 This study proposes a robust second-order terminal sliding mode control with perturbation estimation (2OTSMCPE) strategy with application to trajectory tracking control of the flexure-based nanopositioning system.
Ali Al-Ghanimi +7 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 +3 more
wiley +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 +11 more
wiley +1 more source
Fast Parameter Identification of the Fractional-Order Creep Model
ActuatorsIn 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 +3 more
doaj +1 more source
Experimental Validation of Ultra-Precision Nanopositioning System
IEEE Access, 2021 In this paper, the development of an ultra-precision XY nanopositioning stage is presented. For system structure, the actuator decoupled parallel compliant mechanism is designed to have the same dynamics in both x- and y-direction so that the coupling ...
Jaeyoung Kim +3 more
doaj +1 more source
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 +7 more
wiley +1 more source
Actuators, 2022 Nanopositioning technology is widely used in high-resolution applications. It often uses piezoelectric actuators due to their superior characteristics.
Ayad G. Baziyad +3 more
doaj +1 more source
Nanopositioning of a diamond nanocrystal containing a single NV defect center
, 2009 Precise control over the position of a single quantum object is important for many experiments in quantum science and nanotechnology. We report on a technique for high-accuracy positioning of individual diamond nanocrystals.
de Lange, G. +6 more
core +2 more sources