scholarly journals Dissipation processes in superconducting NbN nanostructures

AIP Advances ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 115116
Author(s):  
Lalit M. Joshi ◽  
P. K. Rout ◽  
Sudhir Husale ◽  
Anurag Gupta
Keyword(s):  
Dissipation Processes

Energy Dissipation Processes of Singlet Excited 1-Hydroxyfluorenone and its Hydrogen-Bonded Complex with N-Methylimidazole

2004 ◽  
Author(s):  
Krisztina Sebők-Nagy ◽  
László Biczók ◽  
Akimitsu Morimoto ◽  
Tetsuya Shimada ◽  
Haruo Inoue
Keyword(s):  
Energy Dissipation ◽  
Dissipation Processes ◽  
Hydrogen Bonded

Ohmic and viscous damping of the Earth's Free Core Nutation

2021 ◽  
Author(s):  
Santiago Triana ◽  
Jeremy Rekier ◽  
Antony Trinh ◽  
Veronique Dehant ◽  
Ping Zhu
Keyword(s):  
Effective Viscosity ◽  
Inner Core ◽  
Extreme Values ◽  
Ohmic Heating ◽  
Outer Core ◽  
Viscous Damping ◽  
Asymptotic Regime ◽  
Free Core Nutation ◽  
Numerical Studies ◽  
Dissipation Processes

<p>The cause for the damping of the Earth's Free Core Nutation (FCN) and the Free Inner Core Nutation (FICN) eigenmodes has been a matter of debate since the earliest reliable estimations from nutation observations were made available. Numerical studies are difficult given the extreme values of some of the parameters associated with the Earth's fluid outer core, where important dissipation processes can take place. We present a linear numerical model for the FCN that includes viscous dissipation and Ohmic heating. We find an asymptotic regime, appropriate for Earth's parameters, where viscous and Ohmic processes contribute equally to the total damping, with the dissipation taking place almost exclusively in the boundary layers. By matching the observed nutational damping we infer an enhanced effective viscosity matching and validating methods from previous studies. We suggest that turbulence caused by the Earth's precession can be a source for the FCN's damping. </p>

Dissipation processes in Langmuir films under lateral compression

2008 ◽  
Vol 516 (9) ◽  
pp. 2670-2676
Author(s):  
Mitsumasa Iwamoto ◽  
A.A. Vakulenko ◽  
A.V. Zakharov
Keyword(s):  
Langmuir Films ◽  
Lateral Compression ◽  
Dissipation Processes

Northeast Pacific annual accumulated cyclonic energy rank-profile

2021 ◽  
pp. 2150083
Author(s):  
Elio Roca-Flores ◽  
Gerardo G. Naumis
Keyword(s):  
Wind Speed ◽  
Tropical Cyclone ◽  
Sliding Window ◽  
Human Society ◽  
Energy Index ◽  
Northeast Pacific ◽  
Hurricane Activity ◽  
Tropical Cyclone Season ◽  
Maximum Sustained Wind Speed ◽  
Dissipation Processes

The ranking of events is a powerful way to study the complexity of rare catastrophic events as earthquakes and hurricanes. Hurricane activity can be quantified by the annual accumulated cyclone energy index (ACE), which contains the information of the maximum sustained wind speed, duration and frequency of the tropical cyclone season. Here, the ranking of the Northeast Pacific annual ACE is obtained and fitted using nonlinear regression with several two- and three-parameter ranking laws that fit the tail and head of the data, where lives the information of relevant events for human society. The logarithmic like function [Formula: see text] overperforms all other fits. A sliding window analysis of the parameters [Formula: see text] and [Formula: see text] of such a function shows that forcing and dissipation processes are anticorrelated.

scholarly journals Climatology of planetary wave type oscillations with periods of 2–20 days derived from O<sub>2</sub> atmospheric and OH(6-2) airglow observations at mid-latitude with SATI

2009 ◽  
Vol 27 (9) ◽  
pp. 3645-3662 ◽  
Author(s):  
M. J. López-González ◽  
E. Rodríguez ◽  
M. García-Comas ◽  
V. Costa ◽  
M. G. Shepherd ◽  
...  
Keyword(s):  
Sierra Nevada ◽  
Planetary Wave ◽  
Lower Thermosphere ◽  
Maximum Activity ◽  
Energy Propagation ◽  
Wave Type ◽  
Winter Solstice ◽  
The Waves ◽  
Maximum Occurrence ◽  
Dissipation Processes

Abstract. The presence of planetary wave type oscillations at mid-latitudes in the mesosphere/lower thermosphere region has been investigated using airglow observations. The observations were taken with a Spectral Airglow Temperature Imager (SATI) installed at Sierra Nevada Observatory (37.06° N, 3.38° W) at 2900 m height. Airglow data of the column emission rate of the O2 Atmospheric (0-1) band and of the OH Meinel (6-2) band and deduced rotational temperatures from 1998 to 2007 have been used in this study. From these observations a climatology of planetary wave type oscillations at this location is inferred. It has been found that the planetary wave type oscillations of 5-day period is predominant in our data throughout the year, with activity greater than 50% during March/April and October/November months. The planetary wave type oscillations of 2-day period is predominant during both solstices, being predominant during winter solstice in O2 while a 10-day oscillation appears throughout the year with activity around 20% and with maximum activity during spring and autumn equinoxes. The 16-day oscillation has maximum occurrence during autumn-winter while its activity is almost disappeared during spring-summer. No clear seasonal dependence of the amplitude of the planetary wave type oscillations was observed in the cases considered in this study. The waves simultaneously detected in the rotational temperatures deduced from both OH and O2 emissions usually show an upward energy propagation and are affected by dissipation processes.

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