In this paper we propose a new technique, wobbling, for the stabilization of spectral ADC-test parameters with respect to offset and amplitude deviations of the sinusoidal stimulus. Wobbling aims at removing the effect of the rounding operation that takes place in an ADC, so that the measured harmonic distortion and noise amplitude can be truly ascribed to the intrinsic non-linearity and noise ...

After fatigue, motor evoked potentials (MEP) elicited by transcranial magnetic stimulation and cervicomedullary evoked potentials elicited by stimulation of the corticospinal tract are depressed. These reductions in corticomotor excitability and corticospinal transmission are accompanied by voluntary activation failure, but this may not reflect a causal relationship. Our purpose was to determin...

An increasing number of studies have investigated the effect of stimulation parameters on neuronal response properties. Here, we describe the effect of temporal characteristics of tactile stimuli, more specifically the stimulation frequency and duration, on the response profile of simultaneously recorded cerebellar and cerebral cortical units in ketamine-xylazine anaesthetized rats. Long stimul...

Directed electrochemical nanowire assembly is a promising high growth rate technique for synthesizing electrically connected nanowires and dendrites at desired locations. Here we demonstrate the directed growth and morphological control of edge-supported platinum nanostructures by applying an alternating electric field across a chloroplatinic acid solution. The dendrite structure is characteriz...

in exploration seismology, migration refers to a multi-channel processing step that attempts to spatially re-position events and improve focusing. before migration, seismic data is usually displayed with traces plotted at the surface location of the receivers and with a vertical time axis. this means that dipping reflections are systematically mispositioned in the lateral coordinate and the ver...

AVO analysis of seismic data is based on the assumption that transitions in the earth consist of jump discontinuities only. The generalization of this type of transition to a more realistic class of transitions shows a drastic change in observed AVO behavior, especially for the large angles currently attained by increasing cable lengths. We propose a simple approach that accounts for this anoma...

Introduction: Frequency offset estimation is one of the most important task in OFDM receiver. Various frequency estimators have already been developed in the literature, including blind 、 semi-blind and data-aided algorithms. Showing great superiority in estimation accuracy、speed and complexity, data-aided algorithms attract much interest in recent years. The normalized frequency offset is usua...

Previous studies showed that the amplitude and latency of the auditory offset cortical response depended on the history of the sound, which implicated the involvement of echoic memory in shaping a response. When a brief sound was repeated, the latency of the offset response depended precisely on the frequency of the repeat, indicating that the brain recognized the timing of the offset by using ...

Higher the data rates and spectrum efficiency of wireless mobile communications have been significantly improved over the last decade, such as 3GPP Long-Term Evolution (LTE) and terrestrial digital TV broadcasting which are sophisticatedly developed using OFDM. Orthogonal frequency division multiplexing (OFDM) is a modulation technique that achieves high data rates, increased bandwidth efficien...

The Moho discontinuity is one of the fundamental boundaries on Earth, separating crust from upper mantle. Arrival times seismic reflection and refraction data are used to estimate depth Moho, but nature remains illusive. We present a synthetic seismogram modelling study for suite possible velocity models oceanic lower transition zone (MTZ). For modelling, we have 45-km long multichannel streame...