Results 21 to 30 of about 135,779 (266)

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

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

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

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

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

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

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

Data Rates Assessment on L2–L3 CPU Bus and Bus between CPU and RAM in Modern CPUs

open access: yesМоделирование и анализ информационных систем, 2017
In this paper, a modern CPU architecture with several different cache levels is described, and current CPU performance limitations such as silicone physical limitations or frequency increase bounds are mentioned.
Maria S. Komar
doaj   +1 more source

Mechanical Consequences of Dynamically Loaded NiTi Wires under Typical Actuator Conditions in Rehabilitation and Neuroscience

open access: yesJournal of Functional Biomaterials, 2021
In the field of rehabilitation and neuroscience, shape memory alloys play a crucial role as lightweight actuators. Devices are exploiting the shape memory effect by transforming heat into mechanical work.
Umut D. Çakmak   +2 more
doaj   +1 more source

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