Temperature gradients and prebiological evolution

1987 ◽  
Vol 10 (2) ◽  
pp. 103-125 ◽  
Author(s):  
F. S. Gaeta ◽  
U. Bencivenga ◽  
P. Canciglia ◽  
S. Rossi ◽  
D. G. Mita
Keyword(s):  
Temperature Gradients ◽  
Prebiological Evolution

Effect of Temperature Gradients on Anammox Activity- A Genome Wide Approach

2018 ◽  
Vol 2018 (7) ◽  
pp. 5219-5228
Author(s):  
Ananda Shankar Bhattacharjee ◽  
Sha Wu ◽  
Ramesh Goel
Keyword(s):  
Temperature Gradients ◽  
Effect Of Temperature ◽  
Genome Wide ◽  
A Genome ◽  
Anammox Activity

scholarly journals Thermal squeezing of the seismogenic zone controlled rupture of the volcano-rooted Flores Thrust

2021 ◽  
Vol 7 (5) ◽  
pp. eabe2348
Author(s):  
Karen Lythgoe ◽  
Muzli Muzli ◽  
Kyle Bradley ◽  
Teng Wang ◽  
Andri Dian Nugraha ◽  
...  
Keyword(s):  
Thermal Structure ◽  
Critical Role ◽  
Volcanic Edifice ◽  
Seismic Array ◽  
Temperature Gradients ◽  
Seismogenic Zone ◽  
Arc Volcano

Temperature plays a critical role in defining the seismogenic zone, the area of the crust where earthquakes most commonly occur; however, thermal controls on fault ruptures are rarely observed directly. We used a rapidly deployed seismic array to monitor an unusual earthquake cascade in 2018 at Lombok, Indonesia, during which two magnitude 6.9 earthquakes with surprisingly different rupture characteristics nucleated beneath an active arc volcano. The thermal imprint of the volcano on the fault elevated the base of the seismogenic zone beneath the volcanic edifice by 8 km, while also reducing its width. This thermal “squeezing” directly controlled the location, directivity, dynamics, and magnitude of the earthquake cascade. Earthquake segmentation due to thermal structure can occur where strong temperature gradients exist on a fault.

scholarly journals Stratification Analysis and Behaviour of a Real Industrial Thermocline Thermal Energy Storage Tank for Cogeneration Purposes

Processes ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 120
Author(s):  
Francisco Fernández ◽  
José Díaz ◽  
María Folgueras ◽  
Inés Suárez
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Control Strategies ◽  
Storage System ◽  
Good Control ◽  
Energy Storage System ◽  
Temperature Gradients ◽  
Operation Conditions ◽  
Mean Temperature

Thermal energy storage systems help to couple thermal energy generation and process demand in cogeneration facilities. One single deposit with two design temperatures and one main temperature step in sensible thermal energy storage define the thermocline systems. Performance of one high size real thermocline thermal energy storage system is analysed. Starting from temperature and mass flow rate data registered by the plant control system, one advanced thermodynamic analysis is performed. The quality of heat storage is analysed in terms of evaluation of the stratification in the thermocline zone. The temperature data registered at 21 positions is extended by displacement analysis generating detailed profiles. Fraction of recoverable heat, thermocline width, stratification indices based on energy and exergy analysis, and mean temperature gradients in the thermocline region are calculated. These parameters are monitored under real operation conditions of the plant. The calculated parameters are studied to check their distribution and correlation. First and Second Law indices show parallel behaviour and two values are found that delimit situations of high and low values of mean temperature gradients. It was observed that buoyancy generates uniform forced movement with the right water temperature entering the diffusers, but good control strategies are essential to avoid mixing. The system demonstrated great stability in this use.

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