Results 41 to 50 of about 2,131,088 (284)

Viaxl: A Solution of a Low-Cost Real-Time Visual Accelerometer Based on Laser Speckle Optical Flow Detection

open access: yesSensors, 2020
Non-contact and non-destructive acceleration measurement is receiving considerable attention due to their low cost, flexibility, and simplicity of implementation, as well as their excellent performance in some emerging applications such as medical ...
Zhitian Li   +4 more
doaj   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

open access: yesFEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang   +5 more
wiley   +1 more source

Non-contact temperature measurement methods [PDF]

open access: yes, 2012
Práce obsahuje přehled metod bezdotykového měření teplot. V práci je rozebrána teorie, a dvě hlavní metody - termovizní a měření pomocí pyrometrů Je popsán princip, kalibrace, jejich výhody a nevýhody.The thesis provides an overview of methods for non ...
Segeťa, Petr
core  

Ultrasonic metal sheet thickness measurement without prior wave speed calibration [PDF]

open access: yes, 2013
Conventional ultrasonic mensuration of sample thickness from one side only requires the bulk wave reverberation time and a calibration speed. This speed changes with temperature, stress, and microstructure, limiting thickness measurement accuracy ...
Dixon, S.   +4 more
core   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang   +9 more
wiley   +1 more source

Comparison of Active Electrode Materials for Non-Contact ECG Measurement

open access: yesSensors, 2019
For long-term and more convenience electrocardiograph (ECG) monitoring, an active- electrode-based ECG monitoring system, which can measure ECG through clothes, is proposed in this paper.
Shun Peng, Ke Xu, Wei Chen
doaj   +1 more source

Simple and Efficient Non-Contact Method for Measuring the Surface of a Large Aspheric Mirror

open access: yesApplied Sciences, 2022
A non-contact measurement method for measuring large aspheric surfaces with a laser tracker is proposed. Using an air-bearing probe eliminates the need to contact the optical surface and improves measurement efficiency and accuracy. Using this method, we
Jie Li, Jie Yang, Lin Chen
doaj   +1 more source

A method for assessing measurement precision and stability of optical probes [PDF]

open access: yes, 2016
The current strategy for measuring non-specular metre-scale surfaces – for instance segmented freeform optics post-grinding – in the mid- frequency bandwidths (S-filter), involves the use of contact probe based systems where measurement precision is a ...
Morantz, Paul   +2 more
core  

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Cave Rock Surface Temperature Evaluation Using Non-Contact Measurement Methods

open access: yesActa Carsologica, 2014
The aim of this study was to evaluate the rock surface temperature (RST) regime in Kateřinská Cave in the Moravian Karst (Czech Republic, South Moravia) using nondestructive infrared methods.
Hana Středová   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy