Results 1 to 10 of about 14,206 (193)
Parameter Self-Adjusting Single-Mode Fiber Nutation Coupling Algorithm Based on Fuzzy Control [PDF]
SensorsThe free-space optical communication fiber coupling system requires improved coupling efficiency through the fiber nutation algorithm. However, traditional fiber nutation algorithms suffer from issues such as fixed parameters and limited correction range.
Yongkai Liu +7 more
doaj +2 more sources
Shapiro like steps reveals molecular nanomagnets’ spin dynamics
AIP Advances, 2015 We present an accurate way to detect spin dynamics of a nutating molecular nanomagnet by inserting it in a tunnel Josephson junction and studying the current voltage (I-V) characteristic.
Babak Abdollahipour +2 more
doaj +3 more sources
About the Free and Forced Nutation: The Daily Nutation [PDF]
American Journal of Astronomy and Astrophysics, 2021 To explain the nutation phenomenon, Euler chose a geocentric frame of coordinates to present his dynamical equations. In accordance with his formulas, the nutation is caused by a momentum relative to the Earth's center, due to certain external forces. Further, Poinsot presented a special case of the Euler's equations, when any momentum of those certain
exaly +2 more sources
Plant nutation relies on steady propagation of spatially asymmetric growth pattern [PDF]
Quantitative Plant BiologyNutation is one of the most striking and ubiquitous examples of the rhythmic nature of plant development. Although the consensus is that this wide oscillatory motion is driven by growth, its internal mechanisms remain to be fully elucidated. In this work,
Mathieu Rivière +3 more
doaj +2 more sources
Understanding the effects of the core on the nutation of the Earth
Geodesy and Geodynamics, 2017 In this review paper, we examine the changes in the Earth orientation in space and focus on the nutation (shorter-term periodic variations), which is superimposed on precession (long-term trend on a timescale of years).
V Dehant +2 more
exaly +3 more sources
Mars nutation resonance due to Free Inner Core Nutation [PDF]
Journal of Geophysical Research, 2003 The rotational normal modes of the planet Mars are computed using a numerical approach. We deduce the associated resonances in the nutations induced by the external gravitational forcing from the Sun, Phobos, and Deimos. In particular, the influence of a possible solid inner core inside a liquid core is investigated.
Pascale Defraigne +2 more
exaly +2 more sources
Contact dynamics analysis of nutation drive with double circular-arc spiral bevel gear based on mathematical modeling and numerical simulation [PDF]
Mechanical Sciences, 2021 This paper describes a dynamic mathematical model of a new type two-stage nutation drive system with double circular-arc bevel gears. The dynamic displacement–vibration coupling model takes into account the gyro torque and side clearance of the nutating ...
Y. Su, L. Yao, J. Zhang
doaj +1 more source
Dynamic modal analysis of double-sided meshing nutation drive with double circular arc spiral bevel gears [PDF]
Mechanical Sciences, 2020 In order to reduce the vibration of the double-sided meshing nutation drive with double circular arc spiral bevel gears, the dynamic modal of the nutation system is analyzed.
Z. Lin, Z. Lin, L. Yao, Z. Xie
doaj +1 more source
The Dynamics of Plant Nutation [PDF]
Scientific Reports, 2020 Abstract In this article we advance a cutting-edge methodology for the study of the dynamics of plant movements of nutation. Our approach, unlike customary kinematic analyses of shape, period, or amplitude, is based on three typical signatures of adaptively controlled processes and motions, as reported in the ...
Raja, Vicente +3 more
openaire +2 more sources
Nutation resonance in ferromagnets [PDF]
Physical Review B, 2020 The inertial dynamics of magnetization in a ferromagnet is investigated theoretically. The analytically derived dynamic response upon microwave excitation shows two peaks: ferromagnetic and nutation resonances. The exact analytical expressions of frequency and linewidth of the magnetic nutation resonance are deduced from the frequency dependent ...
Mikhail Cherkasskii +2 more
openaire +3 more sources