Results 201 to 210 of about 8,113 (254)

Alternative solid hydrocarbons as propellants for electrothermal plasma radio-frequency thrusters. [PDF]

Sci Rep
Lee T, Davoodianidalik M, Tsifakis D, Boswell RW, Charles C.   +4 more
europepmc   +1 more source

Observation of phase correlations in ferrofluids. [PDF]

Sci Rep
Chiolerio A, Vitiello G, Dehshibi MM, Crepaldi M, Torazza D, Adamatzky A.   +5 more
europepmc   +1 more source

Lung Function Trajectories After Preterm Birth: A Life-Course Approach to Age-Specific Monitoring. [PDF]

Children (Basel)
Hoxha D, Bucci I, Di Pillo S, Chiarelli F, Attanasi M, Di Filippo P.   +5 more
europepmc   +1 more source

Feasibility assessment of textile electromyography sensors for a wearable telehealth biofeedback system. [PDF]

Wearable Technol
Ju B, Mark JI, Youn S, Ugale P, Sennik B, Adcock B, Mills AC.   +6 more
europepmc   +1 more source

Countermovement Jump and Quantitative Electroencephalography Assessment in Division I Football Athletes: An Exploratory Neurophysiological Study of Return‑to‑Play Readiness. [PDF]

Int J Sports Phys Ther
Mangine RE, Jacobs BT, Tersak JA, Eifert-Mangine M, Rodrigo CJ, Feldman S, Draovitch P, Bermudez R, Mark M, Hill-Lindsay AR, Grawe BM, Rogers A.   +11 more
europepmc   +1 more source

Impulse Impedance Testing System Based on Machine Learning Methods

, 2018
openaire   +1 more source

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Impulse Impedance of Grounding Grids

IEEE Transactions on Power Apparatus and Systems / Technical Operations Committee, 1980
A method and an empirical formula to calculate the inductance of square grounding grids fed at either centre or one of the corners is presented. Empirical formulae for the effective area and impulse coefficient for centre fed and corner fel square grids are determinel.
B.R. Gupta, B. Thapar
exaly   +2 more sources

The Tapered Impedance Half-Impulse Radiating Antenna

IEEE Transactions on Antennas and Propagation, 2021
In this article, we introduce the tapered impedance half-impulse radiating antenna (TI-HIRA). This innovative version of the HIRA allows the direct connection of COTS, $50~\Omega $ generators to the antenna, without requiring external transformers and without using the large, blocking, plates that would be required in the traditional constant ...
Felix Vega, Fernando Albarracin-Vargas
exaly   +2 more sources

Impulse Impedance Measurements of Lightning Protection Earthings

2019 IEEE PES GTD Grand International Conference and Exposition Asia (GTD Asia), 2019
Lightning protection earthing systems should be tested at currents with time parameters similar to those of lightnings. A method and definition of a measured value of impulse impedance are introduced. The impulse impedance was determined by a quotient of voltage drop on the tested earthing to a value of current in measure circuit. The usefulness of the
T. Horchue, W. Tangtheerajaroonwong, S. Wojtas, M. Woloszyk   +3 more
exaly   +2 more sources

Discussion of Measurement Methods of Impulse Grounding Impedance

2018 34th International Conference on Lightning Protection (ICLP), 2018
The grounding device is very important for lightning protection. However, it is difficult to measure the impulse grounding impedance because the impulse generator is cumbersome and dangerous compared with the device for power frequency test. At the same time it is difficult to generate a lightning current with a suitable waveform due to the inductance ...
Bo Zhang, Jinjiang He, Sen Wang, Jian Zhang, Zhizhong Li, Wei Li   +5 more
exaly   +2 more sources