Results 51 to 60 of about 93,534 (317)

Resonances Driven by a Neutrino Gyroscope and Collective Neutrino Oscillations in Supernovae

, 2011
We show that flavor evolution of a system of neutrinos with continuous energy spectra as in supernovae can be understood in terms of the response of individual neutrino flavor-isospins (NFIS's) to the mean field.
Qian, Yong-Zhong, Wu, Meng-Ru
core   +1 more source

Membrane Wrapping for High Capacity and Rapidly Switchable Adhesives

Advanced Functional Materials, EarlyView.
A membrane‐wrapping mechanism enables high‐capacity, rapidly switchable adhesion by coupling suction, friction, and adhesion. Broadband performance is achieved in dry and underwater conditions, allowing fast, reversible manipulation of objects of diverse sizes and shapes, from delicate eggs and berries to flat, complex, or heavy objects. These outcomes
Yeunhee Kim, Camryn A. Mills, Michael D. Bartlett   +2 more
wiley   +1 more source

Research on Variable Baseline Coherent Angle Measurement Based on Nutation Scanning

Photonics
In inter-satellite laser communication systems, angular deviations between the boresights of terminals exert an impact on system performance, thereby imposing higher requirements on performance parameters such as the angle measurement accuracy and range ...
Dixiang Zeng, Xiaonan Yu, Ziqi Zhang, Peng Lin, Rui Weng, Wenfang Jiao, Shoufeng Tong   +6 more
doaj   +1 more source

Optimization of Torque Models for Radial Meshing Nutation Magnetic Gears Based on the Genetic Algorithm

Jixie chuandong, 2023
In the research of nutation magnetic drive, the torque density of gears is an important index to evaluate its performance. Thus, the analysis and optimization of the magnetic torque is particularly important.
Lou Meiyan, Yao Ligang, Guo Chenxian
doaj  

Nutation damper [PDF]

, 1973
A nutation damper for use on a spinning body is disclosed. The damper is positioned parallel to the spin axis of the body and radially displaced therefrom.
Evans, J.
core   +1 more source

Instrumental oscillations in RHESSI count rates during solar flares

, 2011
Aims: We seek to illustrate the analysis problems posed by RHESSI spacecraft motion by studying persistent instrumental oscillations found in the lightcurves measured by RHESSI's X-ray detectors in the 6-12 keV and 12-25 keV energy range during the decay
A. B. Struminsky, A. K. Tolbert, A. R. Inglis, Andries, B. R. Dennis, Chiu, de Moortel, E. P. Kontar, Fivian, Fleishman, Fleishman, Foullon, Hurford, I. V. Zimovets, Inglis, Inglis, Kaufmann, Kislyakov, Li, Lin, Mariska, Mariska, McLean, Melnikov, Mészárosová, Nakariakov, Nakariakov, Nakariakov, Ofman, Parks, Schwartz, Smith, V. M. Nakariakov, Zimovets, Zimovets, Zimovets   +35 more
core   +1 more source

Coherent Control of Nitrogen Nuclear Spins via the VB−${\rm V}_B^-$‐Center in Hexagonal Boron Nitride

Advanced Functional Materials, EarlyView.
This study demonstrates coherent control of 15N nuclear spins coupled to VB−${\text{V}}_{\text{B}}^{-}$ centers in isotope‐enriched hexagonal boron nitride. Selective addressing via spin‐state mixing enables Rabi driving, quantum gates, and coherence times exceeding 10 μs$\umu{\rm s}$.
Adalbert Tibiássy, Charlie J. Patrickson, Thomas Poirier, James H. Edgar, Bruno Lopez‐Rodriguez, Viktor Ivády, Isaac J. Luxmoore   +6 more
wiley   +1 more source

A new closed form solution for dynamic stability analysis of rolling airframes having one pair ON-OFF actuator

Aviation, 2021
In this paper, the dynamic stability analysis of a rolling airframe actuated by one pair ON-OFF actuator using linear theory is presented via developing a new closed form solution. The effect of discontinuous forcing term on rolling airframe stability is
Jalal Karimi
doaj   +1 more source

NASA Magnetospheric MultiScale Mission TableSat 1C [PDF]

, 2013
The NASA Magnetospheric MultiScale (MMS) mission (to be launched in 2014) consists of four spin-stabilized spacecraft flying in precise formation. The MMS spacecraft, which have wire booms up to 60 m long, are analyzed using the UNH MMS TableSat IC, a ...
Chabot, Joshua, Johnson, Michael, Kelley, Joseph   +2 more
core   +1 more source

Numerical study of spin-dependent transition rates within pairs of dipolar and strongly exchange coupled spins with (s=1/2) during magnetic resonant excitation

, 2012
The effect of dipolar and exchange interactions within pairs of paramagnetic electronic states on Pauli-blockade-controlled spin-dependent transport and recombination rates during magnetic resonant spin excitation is studied numerically using the ...
Baker, W. J., Boehme, C., Lee, S. -Y., Limes, M. E., Saam, B., Wang, J.   +5 more
core   +1 more source