Results 21 to 30 of about 629,535 (260)

Influence of curvature radius on the axial crack signal of the magnetic flux leakage detection for tapered roller bearing rings

open access: yesFrontiers in Physics, 2023
Tapered roller bearings are widely used in heavy machinery, railway transportation, aviation, and other fields. Their quality and reliability are related to the operational safety of mechanical equipment.
Yun Yang   +4 more
doaj   +1 more source

A Generalized Wavefront-Curvature-Corrected Polar Format Algorithm to Focus Bistatic SAR Under Complicated Flight Paths

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Bistatic synthetic aperture radar (BiSAR) imaging is faced with two major challenges: large scene imaging and adaptability to unideal platform motion in practice. In order to deal with these two problems, a generalized wavefront-curvature-corrected polar
Yuxuan Miao   +3 more
doaj   +1 more source

Research on the Curvature Prediction Method of Profile Roll Bending Based on Machine Learning

open access: yesMetals, 2023
Roll-bending technology has a high degree of flexibility and does not require special molds. However, based on the existing plastic mechanics theory and finite element simulation, it is difficult to accurately analyze the complex spatial relationship of ...
Hongqiang Cao   +5 more
doaj   +1 more source

A novel curvature‐correction technique insensitive to process variations

open access: yesElectronics Letters, 2023
This paper proposes a novel curvature‐correction technique insensitive to process variations, which can be used in not only the bandgap reference (BGR) circuit but also the Zener reference circuit. By using two BJT transistors to form a differential pair
Linzhi Tao   +4 more
doaj   +1 more source

Can the Shape of a Planar Pathway Be Estimated Using Proximal Forces of Inserting a Flexible Shaft?

open access: yesFrontiers in Robotics and AI, 2021
The shape information of flexible endoscopes or other continuum structures, e.g., intro-vascular catheters, is needed for accurate navigation, motion compensation, and haptic feedback in robotic surgical systems.
Jiajun Liu   +3 more
doaj   +1 more source

General approach to the sensitivity of the optics of an eye to change in elementary parameters with application to the Gaussian optics of a reduced eye

open access: yesAfrican Vision and Eye Health, 2009
Optical properties of the eye, including the refractive compensation, for example, may change if there are changes in any of the components that make up the eye.  The sensitivity to such changes is quantified via the derivative.
W. F. Harris
doaj   +3 more sources

A 1.2-V Compact Bandgap Reference With Curvature Compensation Technology

open access: yesIEICE Electronics Express
Zhicong Luo, Jinghu Li, Binhan Zhang
exaly   +2 more sources

High precision piecewise linear compensated voltage reference

open access: yesDianzi Jishu Yingyong, 2022
A innovative and high precision piecewise linear compensated voltage reference was designed in this paper. The current proportional to temperature(IPATA) and the current inversely proportional to temperature(ICTAT) was used to obtain the piecewise linear
Xi Dongjie, Xu Qinghao
doaj   +1 more source

An Iterative Compensation Algorithm for Springback Control in Plane Deformation and Its Application

open access: yesChinese Journal of Mechanical Engineering, 2019
In order to solve the springback problem in sheet metal forming, the trial and error method is a widely used method in the factory, which is time-consuming and costly for its non-direction and non-quantitative.
Rui Ma   +3 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

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