Articles with "rotation angle" as a keyword



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Comparison of pelvic rotation angle in the transverse plane in the supine position and during active straight leg raise between people with and without nonspecific low back pain.

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Published in 2021 at "Clinical biomechanics"

DOI: 10.1016/j.clinbiomech.2021.105310

Abstract: BACKGROUND Faults in postural alignment and movement of the pelvis are associated with non-specific low back pain. However, limited studies have investigated the differences in pelvic rotation angle in the transverse plane in the supine… read more here.

Keywords: back pain; pelvic rotation; rotation angle; low back ... See more keywords

Seismic performance assessment of flexure-dominate FRP-confined RC columns using plastic rotation angle

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Published in 2018 at "Engineering Structures"

DOI: 10.1016/j.engstruct.2018.06.046

Abstract: Abstract External wrapping of fiber reinforced polymer (FRP) materials is a widely applied method for the seismic retrofit of reinforced concrete (RC) columns. The seismic evaluation of conventional reinforced concrete columns prior to retrofit is… read more here.

Keywords: rotation angle; concrete columns; plastic rotation; frp ... See more keywords

A novel algorithm for estimating the relative rotation angle of solar azimuth through single-pixel rings from polar coordinate transformation for imaging polarization navigation sensors

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Published in 2019 at "Optik"

DOI: 10.1016/j.ijleo.2018.10.080

Abstract: Abstract Polarized skylight provides navigation compass for many polarization sensitive birds and insects. In this paper, a method based on polar coordinate transformation (PCTA) is proposed to use all the polarization information of the polarization… read more here.

Keywords: polar coordinate; rotation angle; polarization; single pixel ... See more keywords

Optimization design and performance analysis of a novel asymmetric compound parabolic concentrator with rotation angle for building application

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Published in 2017 at "Solar Energy"

DOI: 10.1016/j.solener.2017.10.029

Abstract: Abstract A novel asymmetric lens-walled compound parabolic concentrator (ALCPC) for integration with the building south wall was proposed and manufactured. Besides of the asymmetric lens-walled structure, the special rotation angle at the bottom is also… read more here.

Keywords: rotation angle; parabolic concentrator; novel asymmetric; compound parabolic ... See more keywords

Ionospheric Faraday Rotation Angle Estimation for Bistatic Spaceborne SAR

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Published in 2025 at "Electronics Letters"

DOI: 10.1049/ell2.70324

Abstract: Bistatic synthetic aperture radar (SAR) is a new type of SAR system which is capable of achieving multi‐angle target detection and flexible configuration. For spaceborne bistatic SAR, when operating at low frequencies, it is susceptible… read more here.

Keywords: angle estimation; rotation; sar; faraday rotation ... See more keywords

Development of the interferometer-polarimeter system based on a high-power 660 GHz solid-state source laser

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Published in 2025 at "Journal of Physics D: Applied Physics"

DOI: 10.1088/1361-6463/ade163

Abstract: A solid-state source interferometer-polarimeter (SSIP) system has been designed and installed on the Experimental Advanced Superconducting Tokamak (EAST) for real-time electron density and Faraday rotation angle measurements. The SSIP system employs three novel terahertz solid-state… read more here.

Keywords: polarimeter; system; faraday rotation; state ... See more keywords

Method for Measuring Rotation Angle of Faucet Handle Based on Machine Vision

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Published in 2020 at "IEEE Access"

DOI: 10.1109/access.2020.3034103

Abstract: The faucet’s quality inspection is an integral component of the faucet production process. Sensitivity is an essential parameter to be considered in the detection process. In the traditional sensitivity measurement method, the angle of the… read more here.

Keywords: angle; rotation angle; method; rotation ... See more keywords

Faraday Rotation Angle Measurement Based on Coupled Optoelectronic Oscillator with Temperature Compensation

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Published in 2024 at "Journal of Lightwave Technology"

DOI: 10.1109/jlt.2024.3432999

Abstract: We have proposed and experimentally demonstrated a high-precision and temperature-compensated Faraday rotation angle measurement based on Coupled Optoelectronic Oscillator (COEO). The COEO contains two positive feedback loops. The magnetic-optics crystal is positioned outside the laser… read more here.

Keywords: temperature; faraday rotation; loop; rotation angle ... See more keywords

Large-Rotation-Angle Photogrammetric Resection Based on Least-Squares Homotopy Iteration Method

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Published in 2017 at "IEEE Geoscience and Remote Sensing Letters"

DOI: 10.1109/lgrs.2017.2694016

Abstract: Inclined imaging is an advanced sensing technique, and has been extensively used. Therefore, large-rotation angle photogrammetric resection has become an important topic. However, traditional iterative methods are limited by requiring good initial values. By contrast,… read more here.

Keywords: photogrammetric resection; large rotation; rotation angle; angle photogrammetric ... See more keywords

Oblique views of chest radiography from a designed rotation angle recommendation increase the contrast ratio between obscured lesions and surrounding structures

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Published in 2019 at "Thoracic Cancer"

DOI: 10.1111/1759-7714.13167

Abstract: Chest radiography (CXR) is the main tool used to detect pulmonary nodules. Lateral views of CXR are less effective and the aim of our study was to develop a rotation angle recommendation model to obtain… read more here.

Keywords: rotation angle; lesions surrounding; angle recommendation; obscured lesions ... See more keywords

Multi-thread two-dimensional digital image correlation for full-field displacement and rotation angle measurement

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Published in 2024 at "Optical Engineering"

DOI: 10.1117/1.oe.63.2.024105

Abstract: Abstract. The conventional two-dimensional (2D) digital image correlation (DIC) method often fails to work when there is a large rotation between the reference and deformed images. The objective of this study is to propose a… read more here.

Keywords: method; image; rotation; full field ... See more keywords