Results 11 to 20 of about 240,656 (315)

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
Zhenggang Luo, Jiancheng Shu, Mengjun Chen, Rong Wang, Xiangfei Zeng, Yong Yang, Rui Wang, Shu‐Yuan Chen, Renlong Liu, Zuohua Liu, Zhi Sun, Keli Yu, Yi Deng   +12 more
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A Review of Three-Dimensional Electric Field Sensors [PDF]

Micromachines
Three-dimensional electric field sensors (3D EFSs) can simultaneously measure electric field components in three mutually orthogonal directions and comprehensively capture the spatial distribution and dynamic changes of the electric field.
Xiaonan Li, Yu Gu, Zehao Li, Zijian He, Pengfei Yang, Chunrong Peng   +5 more
doaj   +2 more sources

Rotationally Vibrating Electric-Field Mill [PDF]

, 2008
A proposed instrument for measuring a static electric field would be based partly on a conventional rotating-split-cylinder or rotating-split-sphere electric-field mill.
Harold Kirkham
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Development of Wireless Electric Field Mill for Atmospheric Electric Field Observation

TELKOMNIKA (Telecommunication Computing Electronics and Control), 2014
Rotating-vane electric field mill (REFM) sensor is one of the popular methods to measure atmospheric quasi-static electric field. Lightning incident occasion can be predicted by observing electric fields strength in atmosphere. In this paper an integration of REFM with an online wireless data monitoring system for long distance observation and data ...
Muhammad Abu Bakar Sidik, Hamizah Shahroom, Zolkafle Buntat, Yanuar Z. Arief, Zainuddin Nawawi, Muhammad Irfan Jambak   +5 more
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Lightning discharges registration by the electric field mill

IOP Conference Series: Materials Science and Engineering, 2019
Abstract Analysis of opportunities of use of the electric field mill for lightning discharges detection on the basis of data of an experiment is carried out in the work. Data of joint registration of lightning discharges by the lightning location systems and by the electric field mill are presented.
E. A. Korovin, I. A. Gotyur, Yu. V. Kuleshov, G. G. Shchukin   +3 more
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A new network of electric field mills at the Pierre Auger Observatory [PDF]

Journal of Physics: Conference Series, 2022
Abstract The Pierre Auger Observatory is the largest ground-based experiment for the detection of ultra-high energy cosmic rays. In a hybrid approach, many detectors – including radio antennas – observe the extensive air showers induced by cosmic rays.
Max Büsken
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Design and Optimization of Field Mill Sensors for Accurate Measurement of HVdc Ground Electric Fields Based on Amplifier Parallel Optimization and Wavelet Decomposition Techniques

IEEE Access
With the rapid development of high-voltage direct current (HVdc) transmission technology, the demand for monitoring the DC total electric field at ground level has increased significantly.
Yuehua Huang, Yun Lu, Zhuo Chen, Ziyang Yu, Zhengyu Xiang   +4 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 C. Auden, Elizabeth Auden
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Reproductive trait variability and seed germination responses to electric field and low-dose gamma irradiation in Larix decidua Mill.

Notulae Botanicae Horti Agrobotanici Cluj-Napoca
Larix decidua Mill. (European larch) is an ecologically and economically important deciduous conifer in European mountain ecosystems, whose regeneration success depends on reproductive trait variability and seed physiological quality.
Petru TRUTA, Irina M. MORAR, Alina M. TRUTA, Catalina DAN, Oana VIMAN, Iulia Diana ARION, Florin IORAS, Adriana F. SESTRAS, Leontin DAVID   +8 more
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Investigation of a Micromachined Electric Field Mill Using Dielectric Shutter

Procedia Engineering, 2014
AbstractThis paper investigates a new type of micromachined electric field mill (MEFM) fabricated using a silicon dielectric shutter. The performance of the MEFM is investigated as a function of the dimensional parameters for shutter perforation repetition period, width of perforations and electrodes, shutter thickness, and the gap between shutter and ...
Yu Zhou, Cyrus Shafai
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