Acoustic time-dependent energy and instantaneous power from planar radiators via a generalized radiation impulse response approach

2021 ◽  
Vol 149 (1) ◽  
pp. 102-110
Author(s):  
Peter R. Stepanishen
Keyword(s):  
Impulse Response ◽  
Time Dependent ◽  
Instantaneous Power

scholarly journals Spread of Entanglement in Non-Relativistic Theories

2018 ◽  
Vol 2018 ◽  
pp. 1-27
Author(s):  
Sagar F. Lokhande
Keyword(s):  
Broad Class ◽  
Entanglement Entropy ◽  
Time Dependent ◽  
Quantum Field Theories ◽  
Strongly Coupled ◽  
Conformal Field ◽  
Instantaneous Power ◽  
Holographic Entanglement Entropy ◽  
Quantum Quenches ◽  
Good Order

We use a simple holographic toy model to study global quantum quenches in strongly coupled, hyperscaling-violating-Lifshitz quantum field theories using entanglement entropy as a probe. Generalizing our conformal field theory results, we show that the holographic entanglement entropy of small subsystems can be written as a simple linear response relation. We use this relation to derive a time-dependent first law of entanglement entropy. In general, this law has a time-dependent term resembling relative entropy which we propose as a good order parameter to characterize out-of-equilibrium states in the post-quench evolution. We use these tools to study a broad class of quantum quenches in detail: instantaneous, power law, and periodic.

The study of time-dependent phenomena in materials by impulse-response photoacoustic spectroscopy

1986 ◽  
Vol 64 (9) ◽  
pp. 1146-1149 ◽  
Author(s):  
Richard M. Miller ◽  
Graeme R. Surtees ◽  
Christopher T. Tye ◽  
Ian P. Vickery
Keyword(s):  
Impulse Response ◽  
Photoacoustic Spectroscopy ◽  
Time Dependent ◽  
Plant Leaf

The use of impulse-response photoacoustic signals to monitor time-dependent changes in physicochemical systems is described. The diffusion of a dye through a polymer and the effect of a herbicide on a plant leaf are used to demonstrate the viability of the technique.

scholarly journals A Power Case Study for Monocrystalline and Polycrystalline Solar Panels in Bursa City, Turkey

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Ayşegül Taşçıoğlu ◽  
Onur Taşkın ◽  
Ali Vardar
Keyword(s):  
Power Generation ◽  
Temperature Sensor ◽  
Solar Panel ◽  
Time Dependent ◽  
Total Radiation ◽  
Solar Panels ◽  
Positive Direction ◽  
Direct Radiation ◽  
Instantaneous Power

It was intended to reveal the time dependent power generation under different loads for two different solar panels under the conditions of Bursa province in between August 19 and 25, 2014. The testing sets include solar panels, inverter, multimeter, accumulator, regulator, pyranometer, pyrheliometer, temperature sensor, and datalogger. The efficiency of monocrystalline and polycrystalline solar panels was calculated depending on the climatic data’s measurements. As the result of the study, the average performances of monocrystalline and polycrystalline panels are 42.06 and 39.80 Wh, respectively. It was seen that 87.14 W instantaneous power could be obtained from monocrystalline solar panel and that 80.17 W instantaneous power could be obtained from polycrystalline solar panel under maximum total radiation (1001.13 W/m2). Within this frame, it was determined that monocrystalline solar panel is able to operate more efficiently under the conditions of Bursa compared to polycrystalline solar panel. When the multivariate correlations coefficients were examined statistically, a significant relationship in positive direction was detected between total and direct radiation and ambient temperature on energy generation from monocrystalline and polycrystalline panel.

Sign in / Sign up

Export Citation Format

Share Document