Japan
Country: JP
Study on Sodium Nanofluid for Fast Reactor (1)Concept of Sodium Nanofluid
Liquid sodium is used for a coolant of fast reactor (FR), because it has superior properties. For example, there are high heat conductivity, high melting temperature and excellent compatibility with structural materials. However high reactivity [...]
Translational Research of Hemoglobin-vesicles as a Transfusion Alternative
A fluid of hemoglobin-vesicles, Hb-V, is being developed as a transfusion alternative that comprises concentrated particle dispersion ([Hb] = 10 g/dL, occupied particle volume = 40%, particle size = 250 nm) with physicochemical characteristics comparable [...]
Optimization of synthesis conditions to prepare desired shell thickness of superparamagnetic MgFe2O4@SiO2 core-shell nanosphere for biomedical applications
Das H., Debnath N., Arai T., Sakamoto N., Shinozaki K., Suzuki H., Wakiya N., Shizuoka University, JP
We have described here a simple way for the fabrication of superparamagnetic MgFe2O4@SiO2 core-shell spherical nanoparticles with controlled shell thickness. First, core MgFe2O4 dense nano-spheres were directly synthesized by ultrasonic spray pyrolysis (USP) technique from [...]
Characterization of electrical property and band-structure in carbon nanotube/GaN hetero-interface
Recently power devices using GaN have attracted much attention because of high power and high efficiency due to the wide band-gap. These power devices are generally used in high temperature operation by the heat dissipation [...]
Development of “thermoelectric power generating paper” using carbon-nanotube-composite paper
We propose an unique thermoelectric material based on a carbon-nanotube(CNT)-composite paper[1] that a composite material of the CNT and a paper, i.e., a “thermoelectric power generating paper.” In recent years, about two thirds of the [...]
Simulation of Lags and Current Collapse in Field-Plate AlGaN/GaN HEMTs with Deep Acceptors in a Buffer Layer
Two-dimensional transient analysis of field-plate AlGaN/GaN HEMTs is performed in which a deep acceptor is considered in a semi-insulating buffer layer, and quasi-pulsed current-voltage curves are derived from them. It is studied how the existence [...]
Simulation of Current Slump Removal in Field-Plate GaAs MESFETs
Two-dimensional transient analysis of field-plate GaAs MESFETs is performed by considering surface states in the region from the gate toward the drain. Quasi-pulsed current-voltage curves are derived from the transient characteristics. It is shown that [...]
Simulation of High-k Passivation-Layer Effects on Breakdown Voltage in AlGaN/GaN HEMTs
A two-dimensional analysis of breakdown characteristics in AlGaN/GaN high-electron-mobility transistors (HEMTs) is performed by considering a deep donor and a deep acceptor in a buffer layer. The dependence of an off-state breakdown voltage on the [...]
Fabrication and characterization of quantum dots with carbon nanotube-molecule heterojunctions
We have used single-wall carbon nanotube (SWCNT)/molecule heterojunctions to fabricate quantum structures. In one example, three different SWCNTs were connected in series with collagen model peptide molecules between them. We expect the molecule work as [...]