This paper presents acoustic analysis for the purpose of automatic evaluation of shadowing speech. We use selfchecked scores of understanding, manual prosodic scores, and TOEIC scores as reference scores of learners’ shadowing speech, and compare these scores with automatic scores based on acoustic features that can reflect phoneme intelligibility and prosodic fluency in terms of intonation, an...

Wireless communication between vehicles enables both safety applications, such as accident avoidance, and nonsafety applications, such as traffic congestion alerts [1] with the intent of improving safety in driving conditions. Because the high costs of implementing limited test-bed environments constrain prototype testing, VANET researchers often turn instead to simulation toolsets from which a...

In this work, we present an on-board solution for train position tracking that can be used in cases of GPS failures and that does not suffer from the error accumulation problem of Dead Reckoning (DR). It is based on Received Signal Strength (RSS) measured in radio communication systems by several mobile stations having antennas placed on top of different carriages of the train. As the RSS is af...

Nuclear shadowing in the structure function F 3 is investigated as a possible test of shadowing models. The F 3 shadowing is studied in two different theoretical models: a parton-recombination model with Q 2 rescaling and an aligned-jet model. We find that predictions in these models differ completely in the small x region. It suggests that the F 3 shadowing could be used for discriminating amo...

In the light of a recent claim that models of nuclear shadowing which incorporate a vector meson dominance component at low Q2 are incompatible with nuclear deep inelastic scattering data, we compare the predictions of such a model with high precision data on the Q2 dependence of nuclear shadowing. Contrary to this claim, we find that models which incorporate both vector meson and partonic mech...

Gluon shadowing which is the main source of nuclear effects for production of heavy flavored hadrons, remains unknown. We develop a light-cone dipole approach aiming at simplifying the calculations of nuclear shadowing for heavy flavor production, as well as the cross section which does not need next-to-leading and higher order corrections. A substantial process dependence of gluon shadowing is...

We developed Mixed Reality (MR) content that reconstructs the ancient capital of Asuka-Kyo and applied a fast shading and shadowing method that uses shadowing planes. Subjective evaluation with a head-mounted display showed that viewing this content increased the audience’s knowledge both of Asuka-Kyo and of MR technologies. We also conducted impression evaluation tests with and without shading...

We calculate the shadowing effect in nuclear photoabsorption at low photon energies (1-3 GeV) within a multiple scattering approach. We avoid some of the high energy approximations that are usually made in simple Glauber theory like the narrow width and the eikonal approximation. We find that the main contribution to nuclear shadowing at low energies stems from ρ0 mesons with masses well below ...

SHADOWPIX are white surfaces that display several prescribed images formed by the self-shadowing of the surface when lit from certain directions. The effect is surprising and not commonly seen in the real world. We present algorithms for constructing SHADOWPIX that allow up to four images to be embedded in a single surface. SHADOWPIX can produce a variety of unusual effects depending on the emb...