Results 261 to 270 of about 93,534 (317)
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2007
This chapter aims to explore and describe the physiological aspects of oscillating growth patterns in rapidly elongating plant organs, such as roots, hypocotyls , shoots, branches and flower stalks. After a brief description of the phenomena, the theories and models proposed to explain circumnutation are reported, focusing largely on the internal ...
Sergio Mugnai +4 more
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This chapter aims to explore and describe the physiological aspects of oscillating growth patterns in rapidly elongating plant organs, such as roots, hypocotyls , shoots, branches and flower stalks. After a brief description of the phenomena, the theories and models proposed to explain circumnutation are reported, focusing largely on the internal ...
Sergio Mugnai +4 more
openaire +2 more sources
, 2021
Vortices motion in the anisotropic turbulent flow of cyclones makes a vital impact on flow stability and collection performance. Nevertheless, there remains a lack of clarity in the overall feature of vortices motion.
Pan Zhang +4 more
semanticscholar +1 more source
Vortices motion in the anisotropic turbulent flow of cyclones makes a vital impact on flow stability and collection performance. Nevertheless, there remains a lack of clarity in the overall feature of vortices motion.
Pan Zhang +4 more
semanticscholar +1 more source
Nutation Mode Suppression of Magnetically Levitated Turbo-Rotor via Damping Optimization
IEEE transactions on industrial electronics (1982. Print), 2021The significant nutation will degrade the stability of high-speed magnetically levitated turbo-rotor system. This article presents a damping optimization method to suppress the nutation mode.
Maolin Sun +4 more
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Filter Cross-Feedback Control for Nutation Mode of Asymmetric Rotors With Gyroscopic Effects
IEEE/ASME transactions on mechatronics, 2020The nutation mode is an obstacle to the stability improvement of a magnetic-bearing-supported rotor system with significant gyroscopic effects. This article explores a parameter design method of the filter cross feedback for the nutation mode suppression
Maolin Sun +3 more
semanticscholar +1 more source
Nutational stimulated photon echoes
Optics Letters, 2002Stimulated photon echoes (SPEs) with time duration comparable to the coherent lifetime and Rabi period have been investigated theoretically and experimentally with an angled beam configuration. The Rabi oscillation effects on both the transmitted field (optical nutation) and the SPE fields are explained by analytic solutions of Maxwell-Bloch equations.
Mingzhen, Tian +3 more
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Magnetic nutation: Transient separation of magnetization from its angular momentum
Physical review BFor nearly 90 years, precession and relaxation processes have been thought to dominate magnetization dynamics. Only recently has it been considered that, on short time scales, an inertia-driven magnetization dynamics should become relevant, leading to ...
Anulekha De +8 more
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Analysis of tooth stiffness of nutation face gear
, 2020Purpose The purpose of this paper is to obtain the single-tooth stiffness, single-tooth time-varying meshing stiffness and comprehensive meshing stiffness of the internal and external face gears and to analyze the influence of the modulus, pressure ...
Guangxin Wang, Lili Zhu, Peng Wang
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Experimental verification of coherent tracking system based on fiber nutation.
Optics Express, 2019We report a coherent tracking system based on fiber nutation for inter-satellite beaconless laser communication, which uses a piezo-electric ceramic tube (PCT) to drive the end face of single mode fiber (SMF) for nutation, and uses coherent demodulation ...
Xueqiang Zhao +8 more
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FERONIA mediates root nutating growth
The Plant Journal, 2020SUMMARYRoot nutation indicates the behavior that roots grow in a waving and skewing way due to unequal growth rates on different sides. Although a few developmental and environmental factors have been reported, genetic pathways mediating this process are obscure.
En Li +4 more
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Optimal nutation suppressing method for detumbling satellites via a flexible deceleration device
Nonlinear dynamics, 2023Hao Chen, Honghua Dai, Xiaokui Yue
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