Results 41 to 50 of about 242,880 (295)

Retrieving Storm Electric Fields from Aircraft Field Mill Data. Part II: Applications

Journal of Atmospheric and Oceanic Technology, 2006
Abstract The Lagrange multiplier theory developed in Part I of this study is applied to complete a relative calibration of a Citation aircraft that is instrumented with six field mill sensors. When side constraints related to average fields are used, the Lagrange multiplier method performs well in computer simulations.
W. J. Koshak, D. M. Mach, H. J. Christian, M. F. Stewart, M. G. Bateman   +4 more
openaire   +1 more source

ANALYSES OF MEASUREMENT TECHNIQUES OF ELECTRIC FIELD AND CURRENTS IN THE ATMOSPHERE [PDF]

, 1973
Various sources of atmospheric electric fields and their characteristics are surveyed first. The measurement technique of electric fields with a DC type field mill is analyzed second, and then the antenna method for DC electric fields, currents and ...
OGAWA, Toshio
core  

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

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, Shuyuan Chen, Renlong Liu, Zuohua Liu, Zhi Sun, Keli Yu, Yi Deng   +12 more
openaire   +3 more sources

Enhancing Strength and Electrical Conductivity in Al–Zr–Sc Conductor Alloys Through Sn and Sr Microalloying and Two‐Step Aging Treatment

Advanced Engineering Materials, EarlyView.
Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao, Emad M. Elgallad, Alexandre Maltais, X.‐Grant Chen   +3 more
wiley   +1 more source

A Low Noise, Microprocessor-Controlled, Internally Digitizing Rotating-Vane Electric Field Mill for Airborne Platforms [PDF]

, 2006
This paper reports on a new generation of aircraft-based rotating-vane style electric field mills designed and built at NASA's Marshall Spaceflight Center.
Bailey, J. C., Bateman, M. G., Blakeslee, R. J., Christian, H. J., Daskar, D., Mach, D. M., Podgorny, s. J., Stewart, M. F.   +7 more
core   +1 more source

Etch Induced Microwave Losses in Titanium Nitride Superconducting Resonators

, 2012
We have investigated the correlation between the microwave loss and patterning method for coplanar waveguide titanium nitride resonators fabricated on Si wafers.
David P. Pappas, David S. Wisbey, Jeffrey S. Kline, Jiansong Gao, Martin Sandberg, Martin Weides, Michael R. Vissers, Stern J. A.   +7 more
core   +1 more source

Material tracking with dynamic torque adaptation for tension control in wire rod mill [PDF]

, 2017
Material tracking is an important part of the automation control system which has a major impact on the product quality. This paper addresses a stand load identification in wire rod mill as a new algorithm added to existing control system.
Borovský, Tomáš, Kyslan, Karol, Ďurovský, František   +2 more
core   +2 more sources

Thermophysical Properties of the Desulphurization Slags With Various CaS and CaO/Al2O3 Ratio

Advanced Engineering Materials, EarlyView.
This article investigates how CaS content and the CaO/Al2O3 ratio influence the thermophysical properties of desulphurization slags. Using experimental measurements and thermodynamic simulations, this study reveals complex effects on viscosity, surface tension, and density, providing new insight into slag structure and phase behavior under ...
Eldar Salpagarov, Matheus Roberto Bellé, Anton Yehorov, Julia Richter, Olena Volkova   +4 more
wiley   +1 more source

Observations of electric fields during two partial solar eclipses at the geomagnetic equator [PDF]

Annales Geophysicae
This study presents the first coordinated observations of atmospheric electric field (AEF) and ionospheric plasma drifts during the partial solar eclipses of 2 July 2019 and 14 October 2023, observed near the magnetic equator in Lima, Peru.
M. A. Bravo, J. H. Fernández, A. Godoy, J. E. Pérez, B. A. Urra, A. Ore, E. A. Carrasco, J. J. Soria, E. D. Rojo, C. E. Saavedra, E. M. Ovalle, S. M. Ramos, H. C. Meza, G. E. Mayhuire, P. Quispe, E. Vigo, O. Poma   +16 more
doaj   +1 more source