Results 271 to 280 of about 240,656 (315)

Sustainable Recovery of Rare Earth Elements from Hard Disks: Grinding NdFeB Magnets and Financial and Environmental Analysis. [PDF]

Materials (Basel)
Friebe P, Suponik T, Nuckowski PM, Kremzer M, Baron R, Matusiak P, Kowol D.   +6 more
europepmc   +1 more source

Tailoring Magnetic Properties and Power Loss in Low-Temperature Sintered NiCuZn Ferrites with BMLS-CaTiO₃/BaTiO₃ Composite Additives. [PDF]

Materials (Basel)
Chen C, Cao Z, Cui L, Chang F, Xiao Y, Wu L, Ge X.   +6 more
europepmc   +1 more source

Electric and Magnetic Fields at Three Pulp and Paper Mills

AIHAJ, 1994
Extremely low frequency (60 Hz) electric and magnetic field levels were measured at three Canadian pulp and paper mills, using area point-in-time measurements. Most electric field levels were below the limit of detection of 1 V/m (92 of 132 measurements); the highest measured field was 47 V/m. Measured magnetic field strengths ranged from less than the
Maria Cristina Barroetavena, Randy Ross, Kay Teschke   +2 more
  +5 more sources

Differential mill for measuring electric fields and conductivities in thunderclouds

pure and applied geophysics, 1970
A differential rotating mill for the measurement of electric fields has been designed and built. The instrument was specifically designed to be insensitive to the effects of space charge and frictional charging so that it could operate in the environment of an active thundercloud. The electric field range of the device is 100 to 250,000 volts per meter,
W. H. Evans, R. L. Peck
openalex   +2 more sources

Development of Field-Mill Instruments for Ground-Level and Above-Ground Electric Field Measurement under HVDC Transmission Lines

IEEE Power Engineering Review, 1983
The electric environment under HVDC transmission lines is characterized by electric field, current density and space charge density. The measurement of electric field at and above ground level is described in this paper. A field-mill instrument has been developed for ground-level measurements and has been used extensively under the bipolar dc test line
P. Sarma Maruvada, R.D. Dallaire, R. Pedneault   +2 more
openalex   +2 more sources

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Electric Field Mill, an Effective Methodology to Measure the Localized Lower Atmospheric Electric Field

Materials Today: Proceedings, 2020
Abstract Atmospheric electric field is an utmost parameter to study the dynamics of earth’s atmosphere. Response of electric field may give the idea of localized atmospheric agitations. Electric field mill monitoring system monitors the atmospheric electric field variations which help to investigate and characterize the atmospheric variability in ...
Anupma Agarwal, S. Bhattacharya, Suryanshu Chaudhari   +2 more
openaire   +1 more source

Design, implemetation and calibration of electric field mill

2016 3rd Conference on Power Engineering and Renewable Energy (ICPERE), 2016
The efforts to improve the security of a lightning strike is giving a lightning early warning system. One method that can be used to get the warning is to measure the electric field in the atmosphere. Electric field mill (EFM) is an instrument that can be used to measure the strength of electric fields in atmosphere as a result of electrostatic charge ...
Samuel Kamajaya, Ary P. Nurmansah, Syarif Hidayat   +2 more
openaire   +1 more source