Results 11 to 20 of about 1,904,481 (293)

The groundwater flow system of Terme Alte (Alto Reno Terme, Bologna, Italy)

Acque Sotterranee, 2020
The thermal field of Porretta Terme, located in the Alto Reno Terme municipality (Bologna), has always raised interest for its peculiar waters since ancient times. Indeed, the use of the springs dates back to the I-II century A.D. and perhaps even in the
Alessandro Gargini, Alessandro Stefani, Stefano Vannini   +2 more
doaj   +1 more source

Energy efficiency analysis of railway turnout heating system with a melting snow model heated by classic and contactless heating method [PDF]

Archives of Electrical Engineering, 2019
Maintaining railway turnout operability is crucial for ensuring railway transport safety. Electric heating of railway turnouts is a significant technical and economic issue. The classical heating is characterised by high power consumption.
Mateusz Flis
doaj   +1 more source

Thermal field dynamics and bialgebras [PDF]

Journal of Mathematical Physics, 1997
In thermal field dynamics, thermal states are obtained from restrictions of vacuum states on a doubled field algebra. It is shown that the suitably doubled Fock representations of the Heisenberg algebra do not need to be introduced by hand but can be canonically handed down from deformations of the extended Heisenberg bialgebra.
Kopf, Tomáš, Santana, A. E., Khanna, F. C.   +2 more
openaire   +3 more sources

Comprehensive Review of Pump as Turbine

Renewable Energy and Sustainable Development, 2019
The turbine is a heart of power generation in a hydro-electric power system. A variety of different turbines are available for the purpose. The common types of Hydraulic turbines are; Pelton, cross flow, Francis, Kaplan, and propeller turbine.
Abdulbasit Nasir Jemal, Misrak Girma Haile   +1 more
doaj   +1 more source

Electromagnetic and Thermal Phenomena Modeling of Electrical Discharges in Liquids

Applied Sciences, 2020
Electrical discharges in liquids have received lots of attention with respect to their potential applications in various techniques and technical processes.
Marcin Wesołowski, Sylwester Tabor, Paweł Kiełbasa, Sławomir Kurpaska   +3 more
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A Coupling Analysis of Multiphysical Field for ZnO Surge Arrester Installed in Photovoltaic Substation

Zhongguo dianli, 2022
Conventional finite element analysis(FEA) employed in multiphysical field coupling analysis usually suffers from such drawbacks as large computational effort and heavy reliance on grid quality.
Tianyi ZHANG, Zhijian LIANG, Rui ZHU
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Classical fields near thermal equilibrium [PDF]

Physical Review D, 1997
REVTeX, 6 ...
Greiner, Carsten, Muller, Berndt
openaire   +2 more sources

Optimization of the Cooling Scheme of Artificial Ground Freezing Based on Finite Element Analysis: A Case Study

Applied Sciences, 2022
The present study was envisaged to evaluate the influence of different brine cooling schemes on the freezing process in the formation of sand-cobble strata in an underground connection aisle in Hohhot, China.
Jun Hu, Ke Li, Yuwei Wu, Dongling Zeng, Zhixin Wang   +4 more
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Thermal Renormalons in Scalar Field Theory [PDF]

, 1999
In the frame of the scalar theory $g \phi ^{4}$, we explore the occurrence of thermal renormalons, i. e. temperature dependent singularities in the Borel plane.
C. VALENZUELA, Fujimoto Y., M. LOEWE
core   +4 more sources

Thermoelastic Response of Closed Cylindrical Shells in a Supersonic Gas Flow

Aerospace, 2020
The work is devoted to the investigation of flutter oscillations and the stability of the closed cylindrical shell in supersonic gas flow in an inhomogeneous temperature field.
Marine Mikilyan
doaj   +1 more source