Results 31 to 40 of about 136,054 (268)

Frequency ? dependent advantage in wheat [PDF]

open access: yesTheoretical and Applied Genetics, 1976
The effect of frequency-dependent advantage in wheat was investigated by growing F1. hybrid seeds of the crosses (Warimek X Halberd) and (Wariquam x Halberd) in a stand of Halberd at 5 frequencies: 4 %, 6.25 %, 11.11 %, 25 % and 50 %. A reduction of 35 % to 40 % in grain yield of individual plants was observed with both hybrids as their frequencies ...
T K, Phung, A J, Rathjen
openaire   +2 more sources

Frequency dependence of amplitude scintillation [PDF]

open access: yesIEEE Transactions on Antennas and Propagation, 1999
In the prediction models of tropospheric scintillation on earth-satellite paths from Karasawa, Yamada, and Allnutt and ITU-R, the frequency dependence of scintillation is expressed as a power law with a different exponent for each model. In this paper, this is verified using a collection of measurement results from different satellite links in Europe ...
M. M. J. L. van de Kamp   +3 more
openaire   +3 more sources

Linear and nonlinear elastic properties of dense granular packings: a DEM exploration

open access: yesEPJ Web of Conferences, 2017
Discrete Element Method modeling is used to study the frequency spectrum of particle motion in dense 3D packings of glass beads with Hertz-Mindlin contacts.
Lemrich Laure   +4 more
doaj   +1 more source

Contrast-Dependence of Temporal Frequency Tuning in Mouse V1

open access: yesFrontiers in Neuroscience, 2020
The perception of speed is influenced by visual contrast. In primary visual cortex (V1), an early stage in the visual perception pathway, the neural tuning to speed is directly related to the neural tuning to temporal frequency of stimulus changes.
Daniela Camillo   +2 more
doaj   +1 more source

A Comparative Study of Mobile Internet Usage between the U.S. and Korea

open access: yesJournal of European Psychology Students, 2014
The introduction of smartphones illuminated mobile internet prevalence, highlighting nomophobia. This study explored the mobile internet usage dependency of Korean and U.S.
Luke Yunkeun Shin
doaj   +1 more source

The dependency of timbre on fundamental frequency [PDF]

open access: yesThe Journal of the Acoustical Society of America, 2003
The dependency of the timbre of musical sounds on their fundamental frequency (F0) was examined in three experiments. In experiment I subjects compared the timbres of stimuli produced by a set of 12 musical instruments with equal F0, duration, and loudness. There were three sessions, each at a different F0.
Marozeau, Jeremy   +3 more
openaire   +3 more sources

Frequency- and intensity-dependent impedance functions of laterally loaded pile groups in cohesionless soil

open access: yesSoils and Foundations, 2023
The frequency-dependent horizontal impedance functions of a model floating 2 × 2 pile group, embedded in cohesionless sand under a 1g condition, were investigated experimentally. The tests were conducted using large amplitude loads inducing soil yielding.
Naba Raj Shrestha   +4 more
doaj   +1 more source

High-Frequency Fractional Predictions and Spatial Distribution of the Magnetic Loss in a Grain-Oriented Magnetic Steel Lamination

open access: yesFractal and Fractional
Grain-oriented silicon steel (GO FeSi) laminations are vital components for efficient energy conversion in electromagnetic devices. While traditionally optimized for power frequencies of 50/60 Hz, the pursuit of higher frequency operation (f ≥ 200 Hz ...
Benjamin Ducharne   +4 more
doaj   +1 more source

Frequency-Dependent Changes in NMDAR-Dependent Synaptic Plasticity [PDF]

open access: yesFrontiers in Computational Neuroscience, 2011
The NMDAR-dependent synaptic plasticity is thought to mediate several forms of learning, and can be induced by spike trains containing a small number of spikes occurring with varying rates and timing, as well as with oscillations. We computed the influence of these variables on the plasticity induced at a single NMDAR containing synapse using a reduced
Arvind Kumar 0001, Mayank R. Mehta
openaire   +5 more sources

A Novel Piezoresistive Accelerometer with SPBs to Improve the Tradeoff between the Sensitivity and the Resonant Frequency

open access: yesSensors, 2016
For improving the tradeoff between the sensitivity and the resonant frequency of piezoresistive accelerometers, the dependency between the stress of the piezoresistor and the displacement of the structure is taken into consideration in this paper.
Yu Xu   +5 more
doaj   +1 more source

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