We compute the absorption and emission energies and hence Stokes shifts of small diamondoids as a function of size using different theoretical approaches, including density-functional theory (DFT) and quantum Monte Carlo (QMC) calculations. The absorption spectra of these molecules are also investigated by time-dependent DFT and compared with experiment. We analyze the structural distortion and...

During auditory stimulation with several frequency components, distortion products (DPs) are generated as byproduct of nonlinear cochlear amplification. After generated, DP energy is reemitted into the ear channel where it can be measured as DP otoacoustic emission (DPOAE), and it also induces an excitatory response at cochlear places related to the DP frequencies. We measured responses of 91 i...

Several studies have demonstrated a dissociation of the effects of illusion on perception and action, with perception generally reported to be susceptible to illusions, while actions are seemingly immune. These findings have been interpreted to support Milner and Goodale's Two Visual Systems model, which proposes the existence of separate visual processing streams for perception and action. How...

COMPREHENDING SPOKEN WORDS WITHOUT HEARING PHONEMES: A CASE STUDY Charlotte Jacquemot1, Emmanuel Dupoux1, Christophe Pallier4 and Anne-Catherine Bachoud-Lévi1,2,3 (1Laboratoire de Sciences Cognitives et Psycholinguistique, EHESS-CNRS. Paris, France; 2Unité de Neuropsychologie, Service de Neurologie. CHU Henri Mondor, AP/HP, Créteil, France; 3INSERM U-421-IM3. Faculté de Médecine Paris XII, Crét...

As discussed in Chapter 1, in an outphasing power amplifier system, the AM of a bandpass waveform is transformed into PM of two signals prior to power amplification, and finally recovered by recombining the two amplified signals. As shown in Figure 1.16, with this approach, two highly efficient nonlinear power amplifiers can be used without distorting the original signal. This is the main advan...

Block-based nonlinear structures as, e.g., the Wiener-Hammerstein model, are popular for analyzing a broad class of nonlinear distortions. On the other hand, these models can also be related to Volterra filters in diagonal coordinates which represent very general nonlinear filters with memory. In this work, we propose an approach for estimating the significant coefficients of the nonlinear Volt...

Sensitive response to low frequency cochlear distortion products in the auditory midbrain. Abstract During auditory stimulation with several frequency components, distortion products (DP) are generated as byproduct of nonlinear cochlear amplification. After generated DP energy is 20 reemitted into the ear channel where it can be measured as distortion product otoacoustic emission (DPOAE) and it...

Power amplifiers (PAs) are vital components in many communication systems. To be transmitted wirelessly, a signal must be amplified with high fidelity so as to account for attenuation through the channel or propagation medium. The linearity of a PA response constitutes an important factor that ensures signal integrity and reliable performance of the communication system. Unfortunately, PAs are ...