Role of Fe substitution on the anomalous magnetocaloric and magnetoresistance behavior in Tb(Ni1-xFex)2 compounds

We report the magnetic, magnetocaloric and magnetoresistance results obtained in Tb(Ni1-xFex)2 compounds with x=0, 0.025 and 0.05. Fe substitution leads to an increase in the ordering temperature from 36 K for x=0 to 124 K for x=0.05. Contrary to a single sharp MCE peak seen in TbNi2, the MCE peaks of the Fe substituted compounds are quite broad. We attribute the anomalous MCE behavior to the randomization of the Tb moments brought about by the Fe substitution. Magnetic and magnetoresistance results seem to corroborate this proposition. The present study also shows that the anomalous magnetocaloric and magnetoresistance behavior seen in the present compounds is similar to that of Ho(Ni,Fe)2 compounds

Giant heat dissipation at the low temperature reversible-irreversible transition in Gd5Ge4

The heat exchanged at the low-temperature first-order magnetostructural transition is directly measured in Gd5Ge4 . Results show that the origin and the temperature dependence of the heat exchanged varies with the reversible/irreversible character of the first-order transition. In the reversible regime, the heat exchanged by the sample is mostly due to the latent heat at the transition and decreases with decreasing temperature, while in the irreversible regime, the heat is irreversibly dissipated and increases strongly with decreasing temperature, reaching a value of 237 J/kg at 4 K

Microstructural features, electrical and optical properties of nanostructured InSb thin films deposited at 373 K

Thin films of InSb nanocrystals have been deposited onto KCl substrate Using a thermal evaporation technique Under high vacuum conditions (similar to 10(-6) torr). Ail intriguing microstructure consisted of moire fringes with variable spacings and a corresponding variety of electron diffraction patterns in reciprocal space are reported at the deposition temperature of 373 K. The nano-rains of InSb with preferred orientation and faceted morphology are delineated. A possible mechanism has been postulated to explain the evolution of such microstructures. It has been noticed that there is a peculiarity in the resistivity characteristics and infrared transmittance measurements obtained oil these films. A set of electron micrographs, diffraction patterns and properties have been evaluated and discussed to understand the role of nanocrystals constituting the thin film, and certain types of defects introduced in the microstructure while deposition, oil these properties

Arabic in my hand: small footprint synthesis of Egyptian Arabic

The research described in this paper addresses the dual concerns of synthesis of Arabic, a language that has shot to prominence in the past few years, and synthesis on a handheld device, realization of which presents difficult software engineering problems. Our system was developed in conjunction with the DARPA BABYLON project, and has been integrated with English synthesis, English and Arabic ASR, and machine translation on a single off-the-shelf PDA. We present a concatenative, general-domain Arabic synthesizer that runs 7 times faster than real time with a 9MB footprint. The voice itself was developed over only a few months, without access to costly prepared databases. It has been evaluated using standard test protocols with results comparable to those achieved by English voices of the same size with the same level of development. 1

Development of a multipotent clonal human periodontal ligament cell line

Atsushi Tomokiyo; Hidefumi Maeda; Shinsuke Fujii; Naohisa Wada; Kazuya Shima; Akifumi Akamin

Foreign accents in synthetic speech: Development and evaluation

This paper addresses the generation and evaluation of foreign-accented speech in concatenative text-to-speech (TTS) synthesis. We describe three possible methods of building a Spanish-accented English voice, and evaluate and compare them with respect to preference, intelligibility, and smoothness. Effects of speaking rate and content are also examined. It is found that although using an unmodified Spanish voice to read English text is possible, the result is not highly intelligible. With some modifications to the linguistic model, a relatively high level of comprehensibility and smoothness can be achieved, not differing widely from ratings given to a native voice at a comparable stage of development. Listeners in perceptual experiments were very consistent in their preference rankings of the three voices, showing that differences in voicebuilding method are both detectable and contribute to synthesis quality

Intelligibility of Machine Translation Output in Speech Synthesis

One use of text-to-speech synthesis (TTS) is as a component of speech-to-speech translation systems. The output of automatic machine translation (MT) can vary widely in quality, however. A synthetic voice that is extremely intelligible on naturally-occurring text may be far less intelligible when asked to render text that is automatically generated. In this paper, we compare the quality of synthesis of naturally-occurring text and its MT counterpart. We find that intelligibility of TTS on MT output is significantly lower than on either naturally-occurring text or semantically unpredictable sentences, and explore the reasons why

Microstructural features, electrical and optical properties of nanostructured InSb thin films deposited at 373 K

339-346Thin films of InSb nanocrystals have been deposited onto KCl substrate using a thermal evaporation technique under high vacuum conditions (~10-6 torr). An intriguing microstructure consisted of moiré fringes with variable spacings and a corresponding variety of electron diffraction patterns in reciprocal space are reported at the deposition temperature of 373 K. The nanograins of InSb with preferred orientation and faceted morphology are delineated. A possible mechanism has been postulated to explain the evolution of such microstructures. It has been noticed that there is a peculiarity in the resistivity characteristics and infrared transmittance measurements obtained on these films. A set of electron micrographs, diffraction patterns and properties have been evaluated and discussed to understand the role of nanocrystals constituting the thin film, and certain types of defects introduced in the microstructure while deposition, on these properties