Results 61 to 70 of about 79,864 (297)

Topology‐Optimized Stretchable Piezoelectric Sensors With Tailored Liquid‐Metal Circuits for Anisotropic Stress‐Adaptive Motion Monitoring

open access: yesAdvanced Materials, EarlyView.
Schematic showing the leveraging of topology optimization, the printing of a tailored eutectic gallium‐indium liquid alloy electrode, and porous ceramic engineering to simultaneously enhance mechanical durability, stretchability, and sensing sensitivity to produce a highly deformable and stretchable sensor capable of monitoring complex and anisotropic ...
Hanmin Zeng   +10 more
wiley   +1 more source

The Effect of the Anisotropy of Single Crystal Silicon on the Frequency Split of Vibrating Ring Gyroscopes

open access: yesMicromachines, 2019
This paper analyzes the effect of the anisotropy of single crystal silicon on the frequency split of the vibrating ring gyroscope, operated in the n=2 wineglass mode.
Zhengcheng Qin   +5 more
semanticscholar   +1 more source

Energy Consumption Optimization in Trajectory Planning for Fuel Cell Hybrid Uavs Based On HMPC

open access: yesAdvanced Robotics Research, EarlyView.
The endurance limitation of multirotor drones is a critical challenge. This study adopts a hybrid power system of fuel cells and lithium‐ion batteries. Using Nondominated Sorting Genetic Algorithm II, it integrates trajectory planning with energy management optimization.
Xindi Wang   +7 more
wiley   +1 more source

Toward Usable and Accessible Two-Factor Authentication Based on the Piezo-Gyro Channel

open access: yesIEEE Access, 2022
Two-factor authentication (2FA) is crucial for protecting the security of users authenticating to online servers. Despite its importance, users hesitate to use 2FA, due to usability issues.
Yossi Oren, Dan Arad
doaj   +1 more source

Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion

open access: yesAdvanced Robotics Research, EarlyView.
This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley   +1 more source

Control of Frequency Combs with Passive Resonators

open access: yesSensors, 2023
Tailored optical frequency combs are generated by nesting passive etalons within mode-locked oscillators. In this work, the oscillator generates a comb of 6.8 GHz with 106 MHz side-bands.
James Hendrie   +2 more
doaj   +1 more source

Interferometric length metrology for the dimensional control of ultra-stable Ring Laser Gyroscopes

open access: yes, 2014
We present the experimental test of a method for controlling the absolute length of the diagonals of square ring laser gyroscopes. The purpose is to actively stabilize the ring cavity geometry and to enhance the rotation sensor stability in order to ...
Belfi, J.   +6 more
core   +1 more source

A Large Area Fiber Optic Gyroscope on multiplexed fiber network [PDF]

open access: yes, 2013
We describe a fiber optical gyroscope based on the Sagnac effect realized on a multiplexed telecom fiber network. Our loop encloses an area of 20 km2 and coexists with Internet data traffic.
A. Mura   +18 more
core   +3 more sources

Gyroscopic polynomials

open access: yesJournal of Computational Physics, 2023
Gyroscopic alignment of a fluid occurs when flow structures align with the rotation axis. This often gives rise to highly spatially anisotropic columnar structures that in combination with complex domain boundaries pose challenges for efficient numerical discretizations and computations.
Abram C. Ellison, Keith Julien
openaire   +2 more sources

Integrated optical driver for interferometric optical gyroscopes.

open access: yesOptics Express, 2017
We present the first chip-scale "integrated optical driver" (IOD) that can interrogate with a sensing coil to realize an interferometric optical gyroscope.
Minh   +14 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy