To increase the energy density of lithium batteries, development high-capacity positive electrode materials is essential. Herein, we propose use a three-electron redox reaction Mo3+/Mo6+ for new series insertion materials. In this study, binary system LiMoO2–Li3NbO4 targeted, and nanosize metastable Li9/7Nb2/7Mo3/7O2 successfully prepared by mechanical milling process. The sample delivers large reversible capacity ∼280 mAh g–1 in Li cell with good retention. On basis these results, future...

The development of inherently safe energy devices is a key challenge, and aqueous Li-ion batteries draw large attention for this purpose. Due to the narrow electrochemical stable potential window electrolytes, density selection negative electrode materials are significantly limited. For achieving durable high-energy batteries, exhibiting capacity low without triggering decomposition water crucial. Herein, type material (i.e., Li x Nb2/7Mo3/7O2) proposed batteries. Nb2/7Mo3/7O2 delivers ∼170...

A novel mechanochemical reduction process of V2O5 to VO2 was established by milling with paraffin wax (PW, average molecular weight 254-646), serving as a reductant. The progressed increasing time and mass ratio : PW (MRVP). mechanochemically derived became phase pure after for 3 h an MRVP 30 1 exhibited reversible polymorphic transformation between tetragonal monoclinic phases at around 53-60 °C 67-79 during heating cooling, respectively. latent heat above 20 J g-1 in both processes, being...

The performance (bandwidth, sensitivity, and spatial resolution) of a fiber edge magnetooptic (FEMO) probe developed for observing three-dimensional magnetic-field distributions was evaluated. A gigahertz bandwidth achieved without any magnetic bias by using the magnetization rotation in crystal. ferromagnetic resonance restricted observation to around 10 GHz. Precise adjustment polarization efficient use optical amplifier enhanced field enabling an electric current less than 0.05 mA be...

To establish a method for investigating hidden radiation sources and their mechanisms in printed circuit board, we performed preliminary measurements of one-dimensional magnetic near-field distribution over pins large-scale integrated (LSI) package by means an optical method: the fiber-edge magnetooptic (FEMO) probing technique. The FEMO probe consists fiber optics crystal glued at edge. Its planar spatial resolution is approximately 100 μm. It was found that field generated from each LSI...

The electrochromic (EC) response characteristics of EC-dye-modified porous electrodes composed degenerate transparent conductive oxides were investigated. Although the In2O3:Sn and SnO2:Sb exhibited low electrical resistivity, electrode a slower than that conventional high-resistivity TiO2 electrode, whereas faster response. Structural comparisons revealed pore size film consisting small nanoparticles is one key factors controlling EC speed.

Carbon-carbon (C/C) composites are widely used as sliding materials owing to their excellent mechanical properties. However, it is well known that the C/C exhibit an unstable frictional behavior called friction transition, main mechanism of which remains unclear. In this study we focused on transition by examining morphology wear debris obtained using a thrust-cylinder-type tribotester. Moreover, improve tribological properties composites, discussed effect surface texturing. The results...

For an optimum design of today's fine, complicated SLIs and PCBs, it is considered indispensable to apply electromagnetic near-field probing technique with low-invasiveness high-spatial resolution. In this study, we have evaluated spatial resolutions measurable bandwidths the fiber-edge magneto-optic (FEMO) probes a MO crystal around 10 /spl mu/m thickness. We fabricated two kinds that utilize Faraday effects caused by domain wall displacement phenomenon rotation magnetization (RM)...

The effect of aging on microstructures and mechanical properties 1%N-23%Cr-4%Ni-2%Mo austenitic stainless steel aged at 600∼800°C for up to 1000 h were investigated with electron microscope, analysis extracted residues, ferrite scope, tests such as hardness, tensile, Charpy impact. Chromium nitrides precipitated grain boundary the temperature below 650°C, while lamellar precipitates, which composed plate like Cr2N martensite, formed above 700°C. σ phase 700°C 750°C longer than 100 h....

An indium tin oxide (ITO) nanoparticle-based porous electrode sintered at low temperatures was investigated as a transparent for electrochromic displays (ECDs). The (EC) response of the dye-modified ITO 150 °C, which exhibited generally resistivity, markedly superior to that conventional TiO2 same temperature. Moreover, EC characteristics °C were better than those high-temperature (450 °C) electrode. These improvements in are attributed its lower resistivity electrodes. In addition...

Advances in structure and fabrication process for a thin film acoustic resonator, which have brought about improvement temperature coefficient of resonant frequency (TCF) reproducibility, are presented. Concerning TCF, resonator consisting ZnO/SiOZ/Si triple layer membrane has been developed, TCF 5 ppm/C or less with fairly low clamped-to-motional capacitance ratio achieved. Two techniques Si developed. A two-step etching technique, employing both KOH ethylene diaminepyrocatechol-water...

We report on the first fine x-z mapping experiment of magnetic near-field distribution over circuit patterns. Required three-dimensional (3D) spatial resolution was brought about by utilizing fiber-edged magneto-optic (FEMO) probe structure. The 3D technique electromagnetic fields provides more information finer variations in vertical (z) direction cases circuits. electro-optic/magneto-optic (EO/MO) probing techniques are promising toward this purpose since one can take its attractive...

Using the network analyzer, we investigated electrical characteristics of printed circuit boards (PCBs) which consist a coil-shaped conductor and two ground planes (top bottom). We compared S-parameters for various types PCBs with different shapes coiled conductors without Ni-Zn ferrite composite material. From measured S11s, equivalent inductances were evaluated. Furthermore, using S-parameters, evaluated effective relative permeability permittivity insulator inside PCBs. found that...

Inversion method of Biot-Savart's law has been successfully applied to one-dimensional current profiling for /spl mu/m-class planar circuits. Indispensable is use a fiber-edge magneto-optic probe high spatial resolution and DUT-accessibility.

This paper presents a methodology to simulate the high frequency electromagnetic behavior of Printed Circuit Boards (PCBs) including magnetic materials. The modeling accounts for displacement and eddy currents. hysteresis is efficiently represented by complex permeability model. problem considered as unbounded, bi-dimensional, axisymmetric. A combined Finite Element (FE) Strategic Dual Image (SDI) method used compute electric fields. comparative study two PCBs examples, one MnZn ferrite...

A method to evaluate the characteristics of printed circuit boards containing magnetic films is proposed. By means electromagnetic field distribution computed from a combined finite element and strategic dual image method, equivalent parameters R, L, C are determined. The employed methodology which accounts for eddy currents, displacement currents hysteresis detailed in case 2D axisymmetric problems. Then two simple PCB configurations investigated. results clearly show that NiZn ferrite...

We developed a tsunami hazard map for supporting evacuation guidance which is intended government use. The behavior simulator achieved in making changes every moment with an analysis that unifies simulation and propagation simulation, as this enables the calculation of difficult zones. This paper offers practice case study Shimizu ward, city, Shizuoka prefecture, Japan. zone was around Yokosuna-nishi-machi northwest part site. conditions included walking speed direction, verified zone....

The demand for the increase in energy density of lithium batteries are steadily growing. use three-electron redox transition metals is expected to be a plausible strategy further positive electrode materials with less metal ions. Historically, reaction reported only Cr 3+ /Cr 6+ , e.g ., Li 1.2 0.4 Mn O 2 .[1] In this study, Mo /Mo targeted as materials. Since conventional layered system, LiMo has one mole formula unit, one-electron 4+ used. Therefore, diluted lithium-excess oxide, 3 NbO 4...

The Great East Japan Earthquake in 2011 revealed the vulnerability of modern ports to damage caused by drifting vessels as a result tsunami. goal present study is develop tsunami hazard map for moored order evaluate potential that were previously at port. proposed consists four components: maximum tsunami-height map, inundation depth flow velocity and an evaluation mooring tension. can be used reduce number possible locations obtain information selecting promising candidate location....

Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 5,1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, JapanReceived September 16, 2010; revised November 4, accepted 8, published online April 20, 2011We developed a novel pressure-annealing method for fabricating printed low-work-function metal patterns alloy patterns. Thepressure-annealed electrodes were used as bottom polymer diodes. As result, all-printed diodes havingvarious...

The demand for the increase in energy density of lithium batteries is steadily growing. use three-electron redox transition metals expected to be an important strategy further positive electrode materials with less metal ions. Recently, our group has reported that Mo 3+ ions are diluted lithium-excess oxides, Li 2 Ti 4+ O 3 , Nb 5+ 4 and 6+ 5 which have higher contents, proposed as a new series high-capacity materials.[1] For instance, 9/7 2/7 3/7 delivers large reversible capacity ca. 280...