Results 31 to 40 of about 8,462 (199)

Fault‐tolerant fixed‐time prescribed performance control of MEMS gyroscope

open access: yesIET Control Theory & Applications, 2023
This paper investigates a fault‐tolerant fixed‐time prescribed performance microelectromechanical system gyroscope using the adaptive backstepping method.
Seyed Mohammadreza Esmaeili   +2 more
doaj   +1 more source

Elinvar Materials: Recent Progress and Challenges

open access: yesAdvanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

Tissue Engineered Human Elastic Cartilage From Primary Auricular Chondrocytes for Ear Reconstruction

open access: yesAdvanced Functional Materials, EarlyView.
Despite over three decades of research, no tissue‐engineered solution for auricular reconstruction in microtia patients has reached clinical translation. The key challenge lies in generating functional elastic cartilage ex vivo. Here, we integrate synergistic cell‐biomaterial strategies to engineer auricular grafts with mechanical and histological ...
Philipp Fisch   +13 more
wiley   +1 more source

Predicting and Rationalizing Piezoelectricity in Racemic Bioorganic Molecular Crystals

open access: yesAngewandte Chemie, EarlyView.
Racemic molecular crystals, composed of equal mixtures of chiral enantiomeric components, are predicted to exhibit significant piezoelectric responses and favourable mechanical flexibility. This study identifies organic and bioorganic racemates as promising candidates for sustainable, lead‐free materials, enabling next‐generation applications in energy
Shubham Vishnoi, Sarah Guerin
wiley   +2 more sources

Modified Dynamic North-Finding Scheme With a Fiber Optic Gyroscope

open access: yesIEEE Photonics Journal, 2018
With the development of laser and optical fiber, the north finding system (NFS) with fiber optic gyroscopes (FOGs) has become an active trend in inertial technology research.
Zhu Zhou   +3 more
doaj   +1 more source

Miniaturizing optical gyroscopes [PDF]

open access: yesScience, 2017
Applied Optics Gyroscopes are used in many applications and can be found in devices such as position sensors, inertial navigation systems, and motion stabilizers. Science museum toys consisting of spinning wheels and gimbals illustrate the general principle of operation, but decades of research have focused on their miniaturization and developing ...
openaire   +2 more sources

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

open access: yesAdvanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau   +9 more
wiley   +1 more source

Measurement of the Verdet Constant of Polarization-Maintaining Air-Core Photonic Bandgap Fiber

open access: yesSensors, 2017
We propose a method based on the white-light interference technique for measuring the Verdet constant of a polarization-maintaining air-core photonic bandgap fiber (PM-PBF).
Ningfang Song   +4 more
doaj   +1 more source

Advances toward fieldable atom interferometers

open access: yesAdvances in Physics: X, 2022
We review the field of atom interferometer inertial sensors. We begin by reviewing the path integral formulation of atom interferometers and then specialize the treatment to light-pulse atom interferometers and, in particular, gravimeters and gyroscopes.
Frank A. Narducci   +2 more
doaj   +1 more source

On the Gyroscope [PDF]

open access: yesTransactions of the American Mathematical Society, 1922
The problem which led to the results of this paper was the following.* Consider a gyroscopet which is rotating with high velocity about its axis, the center of gravity, 0, being fixed in space. Let a couple, 9), be applied. The axis of the gyroscope will in general describe a cone, S, whose vertex is at 0.
openaire   +1 more source

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