Results 11 to 20 of about 19,814 (256)

Magnetic Misalignment of Interstellar Dust Filaments

open access: yesThe Astrophysical Journal, 2023
We present evidence for scale-independent misalignment of interstellar dust filaments and magnetic fields. We estimate the misalignment by comparing millimeter-wave dust-polarization measurements from Planck with filamentary structures identified in ...
Ari J. Cukierman   +2 more
doaj   +1 more source

Effects of Dynamic IMU-to-Segment Misalignment Error on 3-DOF Knee Angle Estimation in Walking and Running

open access: yesSensors, 2022
The inertial measurement unit (IMU)-to-segment (I2S) alignment is an important part of IMU-based joint angle estimation, and the accurate estimation of the three degree of freedom (3-DOF) knee angle can provide practical support for the evaluation of ...
Chao Jiang   +4 more
doaj   +1 more source

Effect of individual blade pitch angle misalignment on the remaining useful life of wind turbines [PDF]

open access: yesWind Energy Science, 2021
An empirical data set of laser-optical pitch angle misalignment measurements on wind turbines was analyzed, and showed that 38 % of the turbines have been operating outside the accepted aerodynamic imbalance range.
M. Saathoff   +3 more
doaj   +1 more source

Characteristics of Duplex Angular Contact Ball Bearing with Combined External Loads and Angular Misalignment

open access: yesApplied Sciences, 2020
As a kind of common phenomenon in practical engineering, misalignment error considerably changes the working performance of bearing. However, it has rarely attracted attention in the study of duplex angular contact ball bearings (DACBBs). To evaluate the
Tengfei Xu, Lihua Yang, Kai Wang
doaj   +1 more source

Effect of rotor misalignment on stability of journal bearings with finite width

open access: yesAlexandria Engineering Journal, 2020
The present work studies the dynamic response of fluid film bearing of finite length which is subjected to rotor misalignment. Vibration analysis of the rotor is used to obtain the limits of stability at different operating conditions. The lubricant flow
Khaled M. Abdou, E. Saber
doaj   +1 more source

Rapid Transfer Alignment for Large and Time-Varying Attitude Misalignment Angles

open access: yesIEEE Control Systems Letters, 2023
Transfer alignment is an effective method to estimate the attitude difference between two inertial platforms. Traditional transfer alignment methods are either meant for small misalignments or use nonlinear filtering. Linear methods for large misalignments use quaternion attitude representation, but their performance degrades when the misalignment is ...
Laetitia Tosoni   +3 more
openaire   +2 more sources

Ground Reflection-Based Misalignment Detection of Automotive Radar Sensors

open access: yesIEEE Access, 2023
In this paper, we propose a method for detecting the misalignment of automotive radar sensors. Ensuring the accurate operation of automotive radar sensors is essential for the safety of drivers and passengers.
Chanul Park, Seongwook Lee
doaj   +1 more source

Effects of Shaft Misalignment on the Stresses Distribution on teeth of Spur Gears [PDF]

open access: yesPort Said Engineering Research Journal, 2014
Shaft misalignment is a common problem in most rotating machines. It leads to generate vibration and extra dynamic loading on power transmitting elements, such as gears.
Anwar Kandil   +2 more
doaj   +1 more source

An improved initial alignment method based on adaptive robust CKF algorithm

open access: yesXibei Gongye Daxue Xuebao, 2022
When the misalignment angle is a large angle in the strapdown inertial navigation system (SINS), it is necessary to establish a nonlinear error model to estimate the error.
LI Pu, YANG Tao, MU Hongwei
doaj   +1 more source

Evidence for a Black Hole Spin–Orbit Misalignment in the X-Ray Binary Cyg X-1

open access: yesThe Astrophysical Journal Letters, 2023
Recently, the accretion geometry of the black hole X-ray binary Cyg X-1 was probed with the X-ray polarization. The position angle of the X-ray-emitting flow was found to be aligned with the position angle of the radio jet in the plane of the sky. At the
Andrzej A. Zdziarski   +5 more
doaj   +1 more source

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