Results 51 to 60 of about 3,764,170 (250)

Study on the Main Factors of Frequency Variation of LC Resonant Prestress Detection Method

open access: yesAdvances in Materials Science and Engineering, 2020
Stress loss of prestressed steel strands of existing bridges influences their bearing capacity, so it is of great significance to realize the stress detection. A steel strand that has an inductive property is designed into the resonant circuit, which can
Benniu Zhang   +5 more
doaj   +1 more source

The influence of structure uniformity on resonant frequency of ultra-high frequency radio frequency identification tag thread With normal mode helix dipole antenna

open access: yesJournal of Industrial Textiles, 2022
The stable performance of ultra-high frequency radio frequency identification (UHF RFID) tag thread with normal mode helical dipole antenna (NMHDA) was required for industrialized application.
Yong Zhang   +4 more
doaj   +1 more source

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

Nonlinear hybrid-mode resonant forced oscillations of sagged inclined cables at avoidances [PDF]

open access: yes, 2007
We investigate non-linear forced oscillations of sagged inclined cables under planar 1:1 internal resonance at avoidance. To account for frequency avoidance phenomena and associated hybrid modes actually distinguishing inclined cables from horizontal ...
Rega, Giuseppe, Srinil, Narakorn
core   +4 more sources

Prospecting the protein design landscape

open access: yesFEBS Letters, EarlyView.
This review outlines the current state of various protein design approaches. We discuss the current possibilities enabled by recently released tools, highlight future avenues to pursue in protein design, and underscore the crucial role of key databases and resources for successful protein design workflows.
Jakob R. Riccabona   +4 more
wiley   +1 more source

Methods of frequency tuning vibration based micro-generator

open access: yes, 2009
A vibration based micro-generator is an energy harvesting device that couples a certain transduction mechanism to the ambient vibration and converts mechanical energy to electrical energy.
Zhu, Dibin
core   +1 more source

A sensor for stiffness change sensing based on three weakly coupled resonators with enhanced sensitivity [PDF]

open access: yes, 2015
This paper reports on a novel MEMS resonant sensing device consisting of three weakly coupled resonators that can achieve an order of magnitude improvement in sensitivity to stiffness change, compared to current state-of-the-art resonator sensors with ...
Zhao, Chun   +6 more
core   +2 more sources

Cavity-Resonance-Enabled Wireless Power Transfer System With Compensation for Frequency Fluctuations Caused by Equipment Installation and Its Operation

open access: yesIEEE Journal of Microwaves
We present a cavity resonance-enabled wireless power transfer (CR-WPT), in which the resonant frequency can be adjusted using a monopole probe with a reactance circuit (reactance probe).
Masaya Tamura, Aoi Ide
doaj   +1 more source

Wireless Magnetoelastic Resonance Sensors: A Critical Review

open access: yesSensors, 2002
This paper presents a comprehensive review of magnetoelastic environmental sensor technology; topics include operating physics, sensor design, and illustrative applications.
Keat G. Ong   +6 more
doaj   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

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