Results 61 to 70 of about 17,054,748 (190)

Numerical Simulation of the Behavior of Impulse Gas Seals

Tribology Online
This paper presents a numerical simulation of an impulse gas seal. Impulse gas seals are mechanical seals equipped with feeding grooves on the stator and chambers on the rotor.
Noël Brunetière, Andriy Zahorulko, Jean Bouyer   +2 more
doaj   +1 more source

Investigation on the Resonant Oscillations in an 11 kV Distribution Transformer under Standard and Chopped Lightning Impulse Overvoltages with Different Shield Placement Configurations

Energies, 2019
This paper presents an investigation on the resonant oscillations of an 11 kV layer-type winding transformer under standard and chopped lightning impulse overvoltage conditions based on calculated parameters. The resistances, inductances and capacitances
Avinash Srikanta Murthy, Norhafiz Azis, Mohd Fairouz Mohd Yousof, Jasronita Jasni, Mohammad Lutfi Othman, Mohd Aizam Talib, Bhaba Priyo Das   +6 more
doaj   +1 more source

Acute Effects of Low vs. High Inertia During Flywheel Deadlifts with Equal Force Impulse on Vertical Jump Performance

Sensors
Background: Flywheel resistance training has gained popularity due to its ability to induce eccentric overload and improve strength and power. This study examined the acute effects of low- (0.025 kg·m2) versus high-inertia (0.10 kg·m2) flywheel deadlifts,
Athanasios Tsoukos, Margarita Tsoukala, Dimitra Mirto Papadimitriou, Gerasimos Terzis, Gregory C. Bogdanis   +4 more
doaj   +1 more source

Impulse Response Confidence Intervals for Persistent Data: What Have We Learned? [PDF]

This paper is a comprehensive comparison of existing methods for constructing confidence bands for univariate impulse response functions in the presence of high persistence.
Elena Pesavento, Barbara Rossi
core   +2 more sources

Characterization of Electromagnetic Properties of In Situ Soils for the Design of Landmine Detection Sensors: Application in Donbass, Ukraine

Remote Sensing, 2019
To design holographic and impulse ground penetrating radar (GPR) sensors suitable for humanitarian de-mining in the Donbass (Ukraine) conflict zone, we measured critical electromagnetic parameters of typical local soils using simple methods that could be
Timothy Bechtel, Stanislav Truskavetsky, Gennadiy Pochanin, Lorenzo Capineri, Alexander Sherstyuk, Konstantin Viatkin, Tatyana Byndych, Vadym Ruban, Liudmyla Varyanitza-Roschupkina, Oleksander Orlenko, Pavlo Kholod, Pierluigi Falorni, Andrea Bulletti, Luca Bossi, Fronefield Crawford   +14 more
doaj   +1 more source

High-Power Impulse Magnetron Sputter Deposition of Ag on Self-Assembled Au Nanoparticle Arrays at Low-Temperature Dewetting Conditions

ACS Applied Materials & Interfaces
Plasmons have facilitated diverse analytical applications due to the boosting signal detectability by hot spots. In practical applications, it is crucial to fabricate straightforward, large-scale, and reproducible plasmonic substrates. Dewetting treatment, via applying direct thermal annealing of metal films, has been used as a straightforward method ...
Tianfu Guan, Suzhe Liang, Yicui Kang, Evangelina Pensa, Dong Li, Wenkai Liang, Zhiqiang Liang, Yusuf Bulut, Kristian A. Reck, Tianxiao Xiao, Renjun Guo, Jonas Drewes, Thomas Strunskus, Matthias Schwartzkopf, Franz Faupel, Stephan V. Roth, Emiliano Cortés, Lin Jiang, Peter Müller-Buschbaum   +18 more
openaire   +4 more sources

CALCULATION AND EXPERIMENTAL ESTIMATION OF RESULTS OF ELECTRO-THERMAL ACTION OF RATIONED BY THE INTERNATIONAL STANDARD IEC 62305-1-2010 IMPULSE CURRENT OF SHORT BLOW OF ARTIFICIAL LIGHTNING ON THE THIN-WALLED COVERAGE FROM STAINLESS STEEL

Electrical engineering & Electromechanics, 2017
Purpose. Calculation and experimental researches of electro-thermal resistibility of the pre-production thin-walled sheet models of outward roof of height technical buildings from stainless steel are easily soiled 12Х18Н10Т to direct action on them ...
M. I. Baranov, V. V. Kniaziev, S. V. Rudakov   +2 more
doaj   +1 more source

Inference for Impulse Responses [PDF]

Poor identification of individual impulse response coefficients does not necessarily mean that an impulse response is imprecisely estimated. This paper introduces a three-pronged approach on how to communicate uncertainty of impulse response estimates ...
Oscar Jorda
core  

Performance of different earthing configurations under high impulse conditions

, 2019
The effectiveness of earthing systems is a major concern in today‘s power system applications. Earthing system is very important for an electrical installation system as stated in BS 7671, MS IEC 60364, IEEE Std 81-2012 and IEEE Std 802000; as it ...
Mohamed Yunus, Mohamed Shahriman
core   +1 more source

BEHAVIOUR OF BACKFILL MATERIALS FOR ELECTRICAL GROUNDING SYSTEMS UNDER HIGH VOLTAGE CONDITIONS [PDF]

Journal of Engineering Science and Technology, 2015
Backfill materials like Bentonite and cement are effective in lowering grounding resistance of electrodes for a considerable period. During lightning, switching impulses and earth fault occurrences in medium and high voltage networks, the grounding ...
S. C. LIM, C. GOMES, M. Z. A. A. KADIR, G. NOURIRAD, Z. A. MALEK   +4 more
doaj