Results 71 to 80 of about 581,369 (309)

Wearable 256-Element MUX-Based Linear Array Transducer for Monitoring of Deep Abdominal Muscles

open access: yesApplied Sciences
Reliable acoustic coupling in a non-handheld mode and reducing the form factor of electronics are specific challenges in making ultrasound wearable. Applications relying on a large field of view (such as tracking of large muscles) induce a need for a ...
Daniel Speicher   +10 more
doaj   +1 more source

Resonant scanning design and control for fast spatial sampling

open access: yesScientific Reports, 2021
Two-dimensional, resonant scanners have been utilized in a large variety of imaging modules due to their compact form, low power consumption, large angular range, and high speed.
Zhanghao Sun, Ronald Quan, Olav Solgaard
doaj   +1 more source

Inelastic electron-nucleus scattering form factors for 64,66,68Zn isotopes [PDF]

open access: yesAIP Conference Proceedings, 2019
Inelastic longitudinal electrons scattering form factors to 2+ state in 64,66,68 Zn isotopes have been calculated in the F5P shell model space with the F5PVH effective interaction. The harmonic oscillator potential has been applied to calculate the wave functions of radial single-particle matrix elements. Two shell model codes, CP and NUSHELL have been
Adie D. Salman   +2 more
openaire   +1 more source

Understanding bio‐based polymers: A study of origins, properties, biodegradation and their impact on health and the environment

open access: yesFEBS Open Bio, EarlyView.
This review provides an overview of bio‐based polymer sources, their unique functional properties and their environmental impact, and addresses their role as sustainable alternatives. It discusses end‐of‐life options, including composting and anaerobic digestion for renewable energy.
Sabina Kolbl Repinc   +8 more
wiley   +1 more source

Spectrum Management Regulations, Standards, and Technologies of Unmanned Aerial Vehicle Communication for Low Altitude Economy

open access: yesShuju Caiji Yu Chuli
As “low altitude economy” is included in the government reports, it become the hot topic in 2024. Due to the advantages of high efficiency, flexibility, low cost, and multi payload, unmanned aerial vehicles (UAVs) are regarded as the main form of “low ...
CHEN Yong   +3 more
doaj   +1 more source

6.4 GHz Acoustic Sensor for In-situ Monitoring of AFM Tip Wear [PDF]

open access: yes, 2011
This paper demonstrates an acoustic sensor that can resolve atomic force microscopy (AFM) tip blunting with a frequency sensitivity of 0.007%. The AFM tip is fabricated on a thin film piezoelectric aluminum nitride (AlN) membrane that is excited as a ...
Bhave, S.A.   +4 more
core   +1 more source

The Architectural Design Rules of Solar Systems based on the New Perspective

open access: yes, 2009
On the basis of the Lunar Laser Ranging Data released by NASA on the Silver Jubilee Celebration of Man Landing on Moon on 21st July 1969-1994, theoretical formulation of Earth-Moon tidal interaction was carried out and Planetary Satellite Dynamics was ...
A Johnson   +33 more
core   +1 more source

Prediction Model for Etiologic Differentiation of Isolated Vestibular Syndrome in Emergency Settings

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study aimed to develop and validate a predictive model for differentiating central from peripheral etiologies in patients with isolated vestibular syndrome (VS). Methods In this multicenter retrospective cohort study, 506 patients with isolated VS from five hospitals were divided into derivation (n = 301) and validation (n = 205)
Guo Wenting   +12 more
wiley   +1 more source

System for the measurement of ultra-low stray light levels [PDF]

open access: yes, 1978
An apparatus is described for measuring the effectiveness of stray light suppression light shields and baffle arrangements used in optical space experiments and large space telescopes.
Brealt, R. P.   +7 more
core   +1 more source

The G0 Experiment: Apparatus for Parity-Violating Electron Scattering Measurements at Forward and Backward Angles

open access: yes, 2011
In the G0 experiment, performed at Jefferson Lab, the parity-violating elastic scattering of electrons from protons and quasi-elastic scattering from deuterons is measured in order to determine the neutral weak currents of the nucleon.
A. Biselli   +149 more
core   +3 more sources

Home - About - Disclaimer - Privacy