نتایج جستجو برای: frequency band switching
تعداد نتایج: 657131 فیلتر نتایج به سال:
We present sensitivity measurements of the EVLA at L-band between 0.95 and 2 GHz. These are obtained using three EVLA antennas that are equipped with the final, EVLA-compliant L-band receivers. The reported SEFD values meet and/or exceed the EVLA sensitivity requirements over about 70% of the band, but are too high by 12–38% over the frequency range 1425–1750 MHz.
It is known that post-movement beta synchronization (PMBS) is involved both in active inhibition and in sensory reafferences processes. The aim of this study was examine the temporal and spatial dynamics of the PMBS involved during multi-limb coordination task. We investigated post-switching beta synchronization (assigned PMBS) using time-frequency and source estimations analyzes. Participants ...
A new cavity scheme for a self-sweeping fiber laser with separated gain and absorption dynamics gratings is presented. The experimentally realized in an Er-doped ring generating the continuous-wave (CW) regime near wavelength of 1604 nm. Switching between single longitudinal mode stabilization regimes demonstrated by controlling intracavity losses laser. pump power optimization made it possible...
Future networks will require very high throughput, carrying dominantly data-centric traffic. The role of Photonic Networks employing all-optical systems will become increasingly important in providing scalable bandwidth, agile reconfigurability, and low-power consumptions in the future. In particular, the self-similar nature of data traffic indicates that packet switching and burst switching wi...
In this paper, we have proposed a frequency-switchable complementary split-ring resonator (CSRR)-loaded quarter-mode substrate-integrated-waveguide (QMSIW) band-pass filter. For frequency switching, a microfluidic channel and liquid metal are used. The liquid metal used is eutectic gallium-indium (EGaIn), consisting of 24.5% indium and 75.5% gallium. The microfluidic channels are built using th...
Temperature-responsive oxazoline-based polymer brushes have gained increased attention as biocompatible surfaces. In aqueous environment, they can be tuned between hydrophilic and hydrophobic behavior triggered by a temperature stimulus. This transition is connected with changes in molecule-solvent interactions and results in a switching of the brushes between swollen and collapsed states. This...
Pyridostigmine bromide (PB) is a reversible cholinesterase inhibitor. The aim of this study was to determine the effect of orally administration of single dose sustained-released tablet of pyridostigmine bromide (PBSR) on the frequency domain indices of heart rate variability (HRV). Thirty-two healthy young men were participated in this study. They were divided into 2 groups; the pyridostigmine...
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