Enhanced leaching of manganese from low-grade pyrolusite using ball milling and electric field
Ecotoxicology and Environmental Safety, 2021 In this study, electric field and ball milling were used to leach Mn2+ from low-grade pyrolusite (LGP). The effects of current density, reaction time, reaction temperature, ball-to-powder weight ratio, and ball milling time on the leaching efficiency of Mn2+ from LGP as well as the leaching mechanism were systematically studied. The results showed that
Zhi Sun +12 more
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Uncertainty Analysis of an Electric Field Mill Calibration System
NCSL International Workshop & Symposium Conference Proceedings 2017, 2017 Abstract: We present the uncertainty analysis for an electric field mill calibration system used at the Sandia Primary Standards Laboratory. The uncertainty analysis incorporates contributions from DC voltage supplied by a high voltage amplifier; the distance between an electrically isolated charge plate and the ground plate of a stainless steel test ...
Elizabeth Catherine Auden +3 more
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Jurnal Teknologi, 2013 Lightning is an environmental phenomena that cause many fatalities and property destructions in Malaysia since the country is located in the high isokeraunic area. To reduce the fatalities an alert system should be developed. The alert system can consist of several Rotating Electric Field Mill sensors which are installed in spread.
Nawawi, Zainuddin +6 more
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Atmospheric Electric Field-Mill Sensor Field Campaign Report
, 2021 Hugo Silva +2 more
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The Effects of Jet-Milling and Pulsed Electric Fields on the Preservation of Spinach Juice Lutein Contents during Storage [PDF]
FoodsThis study aimed to investigate the effects of jet-milling on the lutein extraction contents of spinach powder (SP), as well as the effects of pulsed electric field (PEF), as a non-thermal pasteurization technology, on the preservation of spinach juice (SJ) lutein contents. SP particles were divided into SP-coarse (Dv50 = 315.2 μm), SP-fine (Dv50 = 125.
Si-Yeon Kim +5 more
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A Flexible Printed Circuit Board Based Microelectromechanical Field Mill with a Vertical Movement Shutter Driven by an Electrostatic Actuator [PDF]
SensorsMicromachined electric field mills have received much interest for the measurement of DC fields; however, conventional designs with lateral moving shutters could have shutter lifting in the presence of strong fields, which affects their performance. This
Tao Chen, Cyrus Shafai
doaj +2 more sources
160 ENVIRONMENTAL EXPOSURE TO ELECTRIC AND MAGNETIC FIELDS IN PULP AND PAPER MILLS
Epidemiology, 1995 Maria Cristina Barroetavena +2 more
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The electrical activity of Saharan dust as perceived from surface electric field observations [PDF]
Atmospheric Chemistry and Physics, 2021 We report on the electric field variations during Saharan dust advection over two atmospheric remote stations in Greece, using synergistic observations of the vertical atmospheric electric field strength (Ez) at ground level and the lidar-derived ...
V. Daskalopoulou +12 more
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Isotropic Irradiation Model from Atmospheric Discharges Using Local Atmospheric Electric Field Data
Brazilian Archives of Biology and Technology, 2022 Using a local atmospheric electric field sensor network (Field Mill), an electromagnetic link model was proposed considering a free space electric field and a theoretical electric field calculated from an atmospheric discharge. With this, it was possible
Armando Heilmann +3 more
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Seasonal and annual variations in the strength of the atmospheric electric field in the 24th cycle of solar activity measured in Yakutsk [PDF]
E3S Web of Conferences, 2020 The paper presents the results of measuring the strength of the atmospheric electric field in fair weather conditions in the 24th cycle of solar activity from 2009 to 2019 according to observations in Yakutsk (North-east of Siberia).
Toropov Anatoliy +2 more
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