2,975 research outputs found
Speech-like Emotional Sound Generator by WaveNet
In this paper, we propose a new algorithm to generate Speech-like Emotional Sound (SES). Emotional information plays an important role in human communication, and speech is one of the most useful media to express emotions. Although, in general, speech conveys emotional information as well as linguistic information, we have undertaken the challenge to generate sounds that convey emotional information without linguistic information, which results in making conversations in human-machine interactions more natural in some situations by providing non-verbal emotional vocalizations. We call the generated sounds āspeech-likeā, because the sounds do not contain any linguistic information. For the purpose, we propose to employ WaveNet as a sound generator conditioned by only emotional IDs. The idea is quite different from WaveNet Vocoder that synthesizes speech using spectrum information as auxiliary features. The biggest advantage of the idea is to reduce the amount of emotional speech data for the training. The proposed algorithm consists of two steps. In the first step, WaveNet is trained to obtain phonetic features using a large speech database, and in the second step, WaveNet is re-trained using a small amount of emotional speech. Subjective listening evaluations showed that the SES could convey emotional information and was judged to sound like a human voice
Impact of the passive component structure for high efficiency and fast response POL using Power Supply on Chip
Power-SoC, which integrates MCU, power device, control circuits and passive devices on the same chip has been attracted attention. In this paper, we discuss the impact of passive component structure for high efficiency and fast response POL using 3D Power-SoC (Supply on Chip). We propose the optimal structure according to the switching frequency based on simulations
Ac Susceptibility and Static Magnetization Measurements of CeRuSi at Small Magnetic Fields and Ultra Low Temperatures
The magnetic properties of CeRuSi at microkelvin temperatures (down
to 170 K) and ultra small magnetic fields ( mT) are
investigated experimentally for the first time. The simultaneously measured ac
susceptibility and static magnetization show neither evidence of the magnetic
ordering, superconductivity down to the lowest temperatures nor conventional
Landau Fermi-Liquid behavior. The results imply the magnetic transition
temperature in undoped CeRuSi is very close to absolute 0 K. The
possibility for proximity of CeRuSi to the quantum critical point
without any doping is discussed.Comment: 4 pages, 3 figures; accepted for publication in Phys. Rev. B (Rapid
Communication) and scheduled issue on 1st of May 200
Comparison of Sustained Hemodiafiltration with Acetate-Free Dialysate and Continuous Venovenous Hemodiafiltration for the Treatment of Critically Ill Patients with Acute Kidney Injury
We conducted a prospective, randomized study to compare conventional continuous venovenous hemodiafiltration (CVVHDF) with sustained hemodiafiltration (SHDF) using an acetate-free dialysate. Fifty critically ill patients with acute kidney injury (AKI) who required renal replacement therapy were treated with either CVVHDF or SHDF. CVVDHF was performed using a conventional dialysate with an effluent rate of 25āmLĀ·kgā1 Ā· hā1, and SHDF was performed using an acetate-free dialysate with a flow rate of 300ā500āmL/min. The primary study outcome, 30ād survival rate was 76.0% in the CVVHDF arm and 88.0% in the SHDF arm (NS). Both the number of patients who showed renal recovery (40.0% and 68.0%, CVVHDF and SHDF, resp.; P < .05), and the hospital stay length (42.3 days and 33.7 days, CVVHDF and SHDF, resp.; P < .05), significantly differed between the two treatments. Although the total convective volumes did not significantly differ, the dialysate flow rate was higher and mean duration of daily treatment was shorter in the SHDF treatment arm. Our results suggest that compared with conventional CVVHDF, more intensive renal support in the form of post-dilution SHDF with acetate-free dialysate may accelerate renal recovery in critically ill patients with AKI
Novel Quantum Criticality in CeRuSi near Absolute Zero Observed by Thermal Expansion and Magnetostriction
We report linear thermal expansion and magnetostriction measurements for
CeRuSi in magnetic fields up to 52.6 mT and at temperatures down to 1
mK. At high temperatures, this compound showed Landau-Fermi-liquid behavior:
The linear thermal expansion coefficient and the magnetostriction coefficient
were proportional to the temperature and magnetic field, respectively. In
contrast, a pronounced non-Fermi-liquid effect was found below 50 mK. The
negative contribution of thermal expansion and magnetostriction suggests the
existence of an additional quantum critical point
-jets of difeomorphisms preserving orbits of vector fields
Let be a smooth vector field defined in a neighborhood of the origin in
, , and let be its local flow. Denote by the
set of germs of diffeomorphisms preserving
orbits of and let be the identity component of with
respect to -topology. Then every contains a subset
consisting of mappings of the form , where is a smooth function. It was proved earlier by the author that
if is a linear vector field, then . In this paper we
present a class of vector fields for which and
coincide on the level of -jets. We also establish a parameter rigidity
of linear vector fields and "reduced" Hamiltonian vector fields of real
homogeneous polynomials in two variables.Comment: 34 pages. version 5. Many misprints are corrected and some minor
changes are mad
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