Comment on ‘‘Energy balance for a dissipative system’’

1995 ◽  
Vol 51 (5) ◽  
pp. 5166-5168 ◽  
Author(s):  
I. R. Senitzky
Keyword(s):  
Energy Balance ◽  
Dissipative System

scholarly journals Prestress Accumulation-Release Technique for Damping of Impact-Born Vibrations: Application to Self-Deployable Structures

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Arkadiusz Mróz ◽  
Jan Holnicki-Szulc ◽  
Jan Biczyk
Keyword(s):  
Energy Balance ◽  
Parametric Study ◽  
Numerical Study ◽  
Dissipative System ◽  
Free Vibrations ◽  
Frame Structures ◽  
Deployable Structures ◽  
Release Technique ◽  
Initial Load ◽  
Very High

A numerical study is presented, which tailors so-called prestress accumulation-release (PAR) strategy to mitigate free vibrations of frame structures. First, the concept of proposed semiactive technique is outlined and possible applications are specified. In the second part of the work a parametric study is discussed, which illustrates the potential of the method for mitigation of free vibrations induced by impact or other initial load scenarios. Special attention is given to the energy balance including all relevant contributions to the total energy of the considered dissipative system. The proposed technique shows a very high potential in mitigation of free vibrations, exceeding 99% of the reference amplitude after 5 cycles of vibration.

Reply to ‘‘Comment on ‘Energy balance for a dissipative system’ ’’

1995 ◽  
Vol 51 (5) ◽  
pp. 5169-5171 ◽  
Author(s):  
X. L. Li ◽  
G. W. Ford ◽  
R. F. O’Connell
Keyword(s):  
Energy Balance ◽  
Dissipative System

Energy balance for a dissipative system

1993 ◽  
Vol 48 (2) ◽  
pp. 1547-1549 ◽  
Author(s):  
X. L. Li ◽  
G. W. Ford ◽  
R. F. O’Connell
Keyword(s):  
Energy Balance ◽  
Dissipative System

Effects of Ambipolar Diffusion on Prominence Thread Models

1994 ◽  
Vol 144 ◽  
pp. 315-321 ◽  
Author(s):  
M. G. Rovira ◽  
J. M. Fontenla ◽  
J.-C. Vial ◽  
P. Gouttebroze
Keyword(s):  
Energy Balance ◽  
Transition Region ◽  
Ambipolar Diffusion ◽  
Line Profiles ◽  
Balance Equations ◽  
Model Calculations ◽  
Partial Frequency ◽  
Frequency Redistribution ◽  
Partial Frequency Redistribution ◽  
Theoretical Structure

AbstractWe have improved previous model calculations of the prominence-corona transition region including the effect of the ambipolar diffusion in the statistical equilibrium and energy balance equations. We show its influence on the different parameters that characterize the resulting prominence theoretical structure. We take into account the effect of the partial frequency redistribution (PRD) in the line profiles and total intensities calculations.

Influence of Magnetic Fields on Solar Hydrodynamics: Experimental Results

1977 ◽  
Vol 36 ◽  
pp. 143-180 ◽  
Author(s):  
J.O. Stenflo
Keyword(s):  
Solar Activity ◽  
Energy Balance ◽  
Magnetic Fields ◽  
Solar Atmosphere ◽  
General Problem ◽  
Solar Rotation ◽  
Active Regions ◽  
Physical Conditions ◽  
Dynamic Phenomena

It is well-known that solar activity is basically caused by the Interaction of magnetic fields with convection and solar rotation, resulting in a great variety of dynamic phenomena, like flares, surges, sunspots, prominences, etc. Many conferences have been devoted to solar activity, including the role of magnetic fields. Similar attention has not been paid to the role of magnetic fields for the overall dynamics and energy balance of the solar atmosphere, related to the general problem of chromospheric and coronal heating. To penetrate this problem we have to focus our attention more on the physical conditions in the ‘quiet’ regions than on the conspicuous phenomena in active regions.

Circulating Concentrations of Human Peptide YY: Influence of Acute and Chronic Energy Balance Changes

2005 ◽  
Vol 113 (S 1) ◽  
Author(s):  
B Otto ◽  
H Rochlitz ◽  
M Möhlig ◽  
L Burget ◽  
J Kampe ◽  
...  
Keyword(s):  
Energy Balance ◽  
Peptide Yy

Influence of acute and chronic energy balance changes on circulating concentrations of human peptide YY

2005 ◽  
Vol 43 (10) ◽  
Author(s):  
B Otto ◽  
F Lippl ◽  
P Pfluger ◽  
J Spranger ◽  
U Cuntz ◽  
...  
Keyword(s):  
Energy Balance ◽  
Peptide Yy

Parametric Study of Photovoltaic Thermal Solar Collector Using An Improved Parallel Flow

2020 ◽  
Vol 2 (1) ◽  
pp. 19-24
Author(s):  
Sakhr Mohammed Sultan ◽  
Chih Ping Tso ◽  
Ervina Efzan Mohd Noor ◽  
Fadhel Mustafa Ibrahim ◽  
Saqaff Ahmed Alkaff
Keyword(s):  
Thermal Conductivity ◽  
Energy Balance ◽  
Parametric Study ◽  
Solar Collector ◽  
Parallel Flow ◽  
Operating Conditions ◽  
Balance Equations ◽  
Conductivity Type ◽  
Pv Module ◽  
Sunny Weather

Photovoltaic Thermal Solar Collector (PVT) is a hybrid technology used to produce electricity and heat simultaneously. Current enhancements in PVT are to increase the electrical and thermal efficiencies. Many PVT factors such as type of absorber, thermal conductivity, type of PV module and operating conditions are important parameters that can control the PVT performance. In this paper, an analytical model, using energy balance equations, is studied for PVT with an improved parallel flow absorber. The performance is calculated for a typical sunny weather in Malaysia. It was found that the maximum electrical and thermal efficiencies are 12.9 % and 62.6 %, respectively. The maximum outlet water temperature is 59 oC.

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