Results 21 to 30 of about 5,574,042 (346)
The Variability of Sagittarius A* at Centimeter Wavelengths [PDF]
, 2004 We present the results of a 3.3-year project to monitor the flux density of Sagittarius A* at 2.0, 1.3, and 0.7 cm with the VLA. The fully calibrated light curves for Sgr A* at all three wavelengths are presented. Typical errors in the flux density are 6.
Baganoff F. K. +7 more
core +2 more sources
IN-SITU MEASURING METHOD OF RADON AND THORON DIFFUSION COEFFICIENT IN SOIL [PDF]
Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2014 A simple and valid in-situ measurement method of effective diffusion coefficient of radon and thoron in soil and other porous materials was designed. The analysis of numerical investigation of radon and thoron transport in upper layers of soil revealed ...
V.S. Yakovleva
doaj +1 more source
Iron Loss Analysis and Efficiency Calculation of Double Stator HTS Machine With Stationary Seal
IEEE Access, 2022 This paper mainly analyzes the iron loss of a double stator high-temperature superconducting (HTS) machine with stationary seal and calculates its efficiency. Firstly, according to the field-modulation theory, the air-gap flux density harmonic components
Wenzhong Ma +4 more
doaj +1 more source
A nonlinear equivalent circuit model for flux density calculation of a permanent magnet linear synchronous motor [PDF]
Serbian Journal of Electrical Engineering, 2015 In this paper, a nonlinear magnetic equivalent circuit is presented as an analytical solution method for modeling of a permanent magnet linear synchronous motor (PMLSM). The accuracy of the proposed model is verified via comparing its simulation
Ghanaee Reza +4 more
doaj +1 more source
Applied Sciences, 2020 Permanent magnet synchronous machines (PMSMs) are widely used in electric vehicles due to their high power density, high efficiency, etc. Core losses account for a significant component of the total loss in PMSMs.
Guohui Yang, Shuo Zhang, Chengning Zhang
doaj +1 more source
Analysis of the Energy Potential of Solar Light of the Western Region of Ukraine with the Account of Climatic Conditions [PDF]
, 2017 An experimental facility for measuring and recording the flux density of solar radiation is designed and installed. An electrical circuit is developed and a pyranometer model is developed to measure the level of solar radiation, and it is graduated with ...
Andreychuk, V. (Vladimir) +1 more
core +2 more sources
Frontiers in Public Health, 2014 A large body of literature deals with biological effects of extremely low frequency magnetic fields (ELF MF) studied in vitro. Despite the multitude of studies, no coherent picture has evolved regarding the plausibility of effects at low flux densities ...
Mats-Olof eMattsson, Myrtill eSimkó
doaj +1 more source
Using gravitational lensed images to investigate the intrinsic AGN variability [PDF]
, 2016 We discuss about how the relative flux densities among the images of gravitationally-lensed active galactic nuclei, AGN, can be used to study the intrinsic AGN variability with high accuracy.
Marti-Vidal, I., Muller, S.
core +2 more sources
Energies, 2016 This paper presents a novel double-stator permanent-magnet machine integrated with a triple rotor magnetic gear structure, which is proposed to address problems of mechanical geared generators for low-speed applications.
Shehu Salihu Mustafa +4 more
doaj +1 more source
Asymmetric mass-loss from the white dwarf WD 0253+209 : Secret revealed
Bibechana, 2012 Dust structures around the white dwarf WD 0253+209 is studied in 100 and 60 micron infrared image. These images are received from Infrared Astronomical Satellite Survey (IRAS Survey).
Binil Aryal
doaj +3 more sources