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Convergent-beam X-ray crystallography. [PDF]

open access: yesJ Appl Crystallogr
Li C   +21 more
europepmc   +1 more source
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Mathematical Study on Local Fluid Rotation Axis: Vorticity is Not the Rotation Axis

Liutex and Third Generation of Vortex Definition and Identification, 2021
A vortex can be intuitively recognized as the rotational/swirling motion of the fluids. The fascination of the phenomenon brought about many years of research to classify and identify the vortical structure. Vorticity was one of the first theories developed to identify the vortex.
Charles Nottage, Yi-Fei Yu, Chao-Qun Liu
semanticscholar   +2 more sources

A Dual-Axis Rotation Scheme for Long-Endurance Inertial Navigation Systems

IEEE Transactions on Instrumentation and Measurement, 2022
Rotational modulation is an effective means to reduce the equivalent drifts of rotational inertial navigation system (RINS), so as to enhance the accuracy of RINS in long-endurance navigation. In the single-axis continues rotation scheme, the drift along
Kui Li, Wenwei Liang, Qihang Li
exaly   +2 more sources

Sequence-dependent rotation axis changes in tennis

open access: yesSports Biomechanics, 2017
International audienceThe purpose of this study was to evaluate the role of rotation axes during a tennis serve. A motion capture system was used to evaluate the contribution of the potential axes of rotation (minimum inertia axis, shoulder-centre of ...
C. Hansen   +5 more
semanticscholar   +2 more sources

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