189 research outputs found
“Media for Capability” of Children with Disabilities: Development of the Japanese Augmentative Alternative Communication App by Tablet for Persons with Hard of Hearing
Over the past few decades, a considerable number of studies have been conducted on the communication for persons with Hard of hearing and Deaf in Japan. But little attention has been given to the take advantage of Information Technology devices to support the communication for Hard of hearing children. \ \ By the way, the present study analyses in greater detail the survey results summarized in the importance of the “Tablet-Media”. We discuss our communication assist software to express texts and images by Android application for children with Hard of hearing. In this paper, this app is analyzed using the “Capability theory” with emphasis on the power of self-expression and the right to self-determination of persons with disabilities. \ \ The results of our performance tests showed that our system was very helpful in order to provide their “Capability” for Hard of hearing children. We suggest the potential to combine our App is what we should call “Media for Capability” of communication in children with hard of hearing
Crystal Growth of BiSrCaCuO Whiskers from Pulverized Amorphous Precursors
High-transition temperature superconducting whiskers of
BiSrCaCuO were successfully grown from
pulverized amorphous precursors. The obtained whiskers revealed a typical
composition and diffraction patterns of a superconducting Bi-2212 phase. The
whiskers from tiny precursors exhibit a spiral feature, suggesting a
contribution from the growth mechanism of both vapor-liquid-solid and
compressive stress models. The proposed method provides longer whiskers against
the growth period, compared with that from conventional root-growth method
Data-driven Exploration of New Pressure-induced Superconductivity in PbBiTe with Two Transition Temperatures
Candidates compounds for new thermoelectric and superconducting materials,
which have narrow band gap and flat bands near band edges, were exhaustively
searched by the high-throughput first-principles calculation from an inorganic
materials database named AtomWork. We focused on PbBiTe which has the
similar electronic band structure and the same crystal structure with those of
a pressure-induced superconductor SnBi2Se4 explored by the same data-driven
approach. The PbBiTe was successfully synthesized as single crystals
using a melt and slow cooling method. The core level X-ray photoelectron
spectroscopy analysis revealed Pb2+, Bi3+ and Te2- valence states in
PbBiTe. The thermoelectric properties of the PbBiTe sample were
measured at ambient pressure and the electrical resistivity was also evaluated
under high pressure using a diamond anvil cell with boron-doped diamond
electrodes. The resistivity decreased with increase of the pressure, and two
pressure-induced superconducting transitions were discovered at 3.4 K under
13.3 GPa and at 8.4 K under 21.7 GPa. The data-driven approach shows promising
power to accelerate the discovery of new thermoelectric and superconducting
materials
Direct Patterning of Boron-doped Amorphous Carbon Using Focused Ion Beam-assisted Chemical Vapor Deposition
The deposition of boron-doped amorphous carbon thin films on SiO2 substrate
was achieved via a focused ion beam-assisted chemical vapor deposition of
triphenyl borane (C18H15B) and triphenyl borate (C18H15BO3). The existence of
boron in the deposited film from triphenyl borane, with a precursor temperature
of 90 {\deg}C, was confirmed by a core level X-ray photoelectron spectroscopy
analysis. The film exhibited a semiconducting behavior with a band gap of 285
meV. Although the band gap was decreased to 197 meV after an annealing process,
the film was still semiconductor. Additionally, a drastic reduction of the
resistance on the deposited film by applying pressures was observed from an
in-situ electrical transport measurements using a diamond anvil cell
- …