Results 21 to 30 of about 620,814 (267)

Glueballs in a thermal squeezeout model

Journal of High Energy Physics, 2022
Abstract It has been shown that a first order confinement phase transition can drastically change the relic dark matter abundance in confining dark sectors with only heavy dark quarks. We study the phenomenology of one such model with a Z′ portal to Standard Model. We find that dark glueballs are long-lived in this setup and dilute
Pouya Asadi, Eric David Kramer, Eric Kuflik, Tracy R. Slatyer, Juri Smirnov   +4 more
openaire   +5 more sources

MOS-FET as a Current Sensor in Power Electronics Converters

Sensors, 2015
This paper presents a current sensing principle appropriate for use in power electronics’ converters. This current measurement principle has been developed for metal oxide semiconductor field effect transistor (MOS-FET) and is based on UDS voltage ...
Rok Pajer, Miro Milanoviĉ, Branko Premzel, Miran Rodiĉ   +3 more
doaj   +1 more source

Parameter Estimation for Hot-spot Thermal Model of Power Transformers Using Unscented Kalman Filters

Journal of Modern Power Systems and Clean Energy, 2023
This paper presents a parameter estimation technique for the hot-spot thermal model of power transformers. The proposed technique is based on the unscented formulation of the Kalman filter, jointly considering the state variables and parameters of the ...
Miguel Angel Gonzalez-Cagigal, Jose Antonio Rosendo-Macias, Antonio Gomez-Exposito   +2 more
doaj   +1 more source

Electro-Thermal Modeling and Design of High-Current Pulse Power Supply for Electrically Assisted Manufacturing

IEEE Access, 2019
Electrically assisted manufacturing (EAM) is a promising and rapidly developing metal processing method. The power supply is a key sub-system for EAM, which needs to be designed properly.
Jiawei Wu, Xiaotao Han, Huai Wang
doaj   +1 more source

Development of a mathematical model of an autonomous power supply source with a free piston motor on the basis of a synchronous electric returning machine with a permanent magnets

Известия высших учебных заведений: Проблемы энергетики, 2020
One of the current trends at present is the development of small energy, which is a particularly urgent task for the Russian Federation with its vast territories and the specifics of the electric power system.
A. R. Safin, I. V. Ivshin, E. I. Gracheva, T. I. Petrov   +3 more
doaj   +1 more source

Analysis of Coupled Thermal and Electromagnetic Processes in Linear Induction Motors Based on a Three-Dimensional Thermal Model

Mathematics, 2021
The article describes a mathematical model of interconnected electromechanical and thermal processes in a linear induction motor (LIM). Here, we present the structure of the thermal model and provide the calculation formulas of the model.
Victor Goman, Vladimir Prakht, Vladimir Dmitrievskii, Fedor Sarapulov   +3 more
doaj   +1 more source

BIM AND FORECASTING DEFORMATIONS IN MONITORING STRUCTURES

GeoScience Engineering, 2019
BIM technologies are becoming more widely used, mainly in the design and operation of buildings and structures, and in most cases, this is enough for trouble-free operation.
Sergej MOGIL'NY, Andrei SHOLOMITSKII, Elena LAGUTINA   +2 more
doaj   +1 more source

Thermal Resistance Matrix Extraction from Finite-Element Analysis for High-Frequency Magnetic Components

Energies, 2021
The thermal management of magnetic components for power electronics is crucial to ensure their reliability. However, conventional thermal models for magnetic components are known to have either poor accuracy or excessive complexity.
Guillermo Salinas, Juan A. Serrano-Vargas, Javier Muñoz-Antón, Pedro Alou   +3 more
doaj   +1 more source

Tsallis Statistics in High Energy Physics: Chemical and Thermal Freeze-Outs

Physics, 2020
We present an overview of a proposal in relativistic proton-proton (pp) collisions emphasizing the thermal or kinetic freeze-out stage in the framework of the Tsallis distribution.
Jean Cleymans, Masimba Wellington Paradza   +1 more
doaj   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan, Michael Abele, Calogero Virgone, Michaela Kuhlen, Ricardo Lopez‐Almarez, Tal Ben‐Ami, Ewa Bien, Maja Cesen, Malgorzata A. Krawczyk, Andrea Ferrari, Gianni Bisogno, Yves Reguerre, Dominik T. Schneider, Louise Galmiche, Jorg Fuchs, Sarah Braungart, Bilgehan Yalcin, Ines B. Brecht, Daniel Orbach   +18 more
wiley   +1 more source