2172 research outputs found
Sort by
A Study on the Difference between the “Te-Form” and the “Renyo-Form” : From the Viewpoint of Japanese Language Education
Get PDFP(論文)departmental bulletin pape
Study on Growth and Characteristics of Thermally Evaporated Organic Semiconductor Layers
Get PDF豊橋技術科学大学博士(工学)doctoral thesi
Basis Function Selection of Frequency-Domain Hammerstein Self-Interference Canceller for In-Band Full-Duplex Wireless Communications
Get PDFThis paper presents a basis function selection technique of a frequency-domain Hammerstein digital selfinterference canceller for in-band full-duplex communications. The power spectral density (PSD) of the nonlinear selfinterference signal is theoretically analyzed in detail, and a nonlinear self-interference PSD estimation method is developed. The proposed selection technique decides on the basis functions necessary for cancellation and relaxes the computational cost of the frequency-domain Hammerstein canceller based on the estimated PSD of the self-interference of each basis function. Furthermore, the convergence performance of the canceller is improved by the proposed selection technique. Simulation results are then presented, showing that the proposed technique can achieve similar cancellation performance compared with the original frequency-domain Hammerstein canceller and a time-domain nonlinear canceller. Additionally, it is shown that the proposed technique improves the computational cost and the convergence performance of the original frequency-domain Hammerstein canceller.journal articl
Formation and Stability of Interface between Garnet-Type Ta-doped Li7La3Zr2O12 Solid Electrolyte and Lithium Metal Electrode
Get PDFGarnet-type Li7-xLa3Zr2-xTaxO12 (LLZT) is considered a good candidate for the solid electrolyte in all-solid-state lithium batteries because of its reasonably high conductivity around 10-3 S cm-1 at room temperature and stability against lithium (Li) metal with the lowest redox potential. In this study, we synthesized LLZT with a tantalum (Ta) content of 0.45 via a conventional solid-state reaction process and constructed a Li/LLZT/Li symmetric cell by attaching Li metal foils on the polished top and bottom surfaces of an LLZT pellet. We investigated the influence of heating temperatures and times on the interfacial charge-transfer resistance between LLZT and the Li metal electrode. In addition, the effect of the interface resistance on the stability for Li deposition and dissolution was examined using a galvanostatic cycling test. The lowest interfacial resistance of 25 ohm cm2 at room temperature was obtained by heating at 175 degree Celsius (5 degree Celsius lower than the melting point of Li) for three to five hours. We confirmed that the current density at which the short circuit occurs in the Li/LLZT/Li cell via the propagation of Li dendrite into LLZT increases with decreasing interfacial charge transfer resistance.journal articl
Mixed-domain signal processor for multi-channel sensor applications
Get PDF豊橋技術科学大学博士(工学)doctoral thesi
Nanoscale-tipped microwire array devices for in vitro and in vivo intracellular applications
Get PDF豊橋技術科学大学博士(工学)doctoral thesi
Study on Design Method of Free-Form Reticulated Shell Structures Considering Buckling and Vibration
Get PDF豊橋技術科学大学博士(工学)doctoral thesi
