Materials Literature
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An effort has been made in this study to evaluate the dynamics and characteristics of the test vehicle in a board level drop test. A thorough understanding of the behavior of the test vehicle is examined by characterizing its response under different test profiles and board dimensions. This is done in an attempt to op…
The direct borohydride fuel cell (DBFC) is directly fed sodium borohydride as a fuel and hydrogen peroxide as an oxidant. The output voltage of the DBFC drops with respect to current demand. Therefore, it requires a dc-dc converter for a regulated voltage. The dc dc converter should be designed considering both the im…
The addition of β-Sialon nanoparticles to lubricants in heavy-duty frictional joints is shown to be effective.
Electrical conductivity, dielectric permittivity and mechanical hardness of the polycrystalline CeO2 + xSm2O3 (x = 0, 10.9–15.9 mol %) films prepared by Electron Beam Physical Vapour Deposition (EB-PVD) and Ionic Beam Assisted Deposition, (IBAD), techniques were investigated in dependence on their structure and micros…
The local dynamics of ferroelectric domain polarization are uniquely investigated with sub-20-nm resolved maps of switching times, growth velocities, and growth directions. This is achieved by analyzing movies of hundreds of consecutive high speed piezo force microscopy images, which record domain switching dynamics t…
Abstract This paper presents the results of tensile tests for lead zirconate titanate (PZT)/Platinum (Pt) thin films of 2.15 μm thickness in atmospheric air at room temperature. An axial loading tester developed by the authors was used for the tests. The tester was equipped with a load cell with a maximum capacity of…
The creation of thin, buried, and electrically conducting layers within an otherwise insulating diamond by annealed ion implantation damage is well known. Establishing facile electrical contact to the shallow buried layer has been an unmet challenge. We demonstrate a new method, based on laser micro-machining (laser a…
In order to fully understand dynamic behavior of the thickness variation and conduct off-line process tuning, a dynamic simulator for the feedforward Automatic Gauge Control (AGC) for a hot strip finishing mill in China Steel Corporation is developed. One of the major factors influencing on deviation of delivery thick…
In this paper, new approaches for predicting the radiation patterns of composite right/left-handed (CRLH) leaky-wave antenna (LWA) are proposed and compared with the conventional approaches. The conventional approach for fast calculating the scanning angle of main beam, as well as the conventional array factor (AF) ap…
Organic Light Emitting Diodes (OLED) are receiving increased attention due to tremendous application potential these devices hold in the areas of large area displays and lighting applications. However, the problems of efficiency, stability and shelf life are major challenges for making OLEDs an attractive alternative.…
There are different blasting stress field which around the blast hole caused by different charge when explosives exploded in the rock. Simulation analysis on borehole wall pressure and explosion stress field of rock at different charging structure was done by ANSYS/LS-DYNA. The simulation results indicate: stress of c…
Phase equilibria in the EuS-Cu 2 S-Nd 2 S 3 system were studied in an isothermal (970 K) section and NdCuS 2 -EuS and Cu 2 S-EuNdCuS 3 polythermal sections. The complex sulfide EuNdCuS 3 has an orthorhombic crystal lattice (space group Pnma ; a = 1.10438(2) nm, b = 0.40660(1) nm, c = 1.14149(4) nm), is isostructural t…
Current-induced effects in materials for which the first-order magnetic phase transition is accompanied by a strong change in electric resistivity are theoretically analyzed. An approach is developed that describes the magnetization and conductivity of thin film systems based on such material, for the temperature inte…
We control the thermal conductivity of anharmonic acoustic chains by varying the strength of disorder in the interaction. It induces mobility edges in the phonon spectrum. Therefore we limit the amount of extended modes which can ballistically propagate. The rest of the modes becomes localized and opens a diffusive he…
Nonoxidative methane conversion into aromatic hydrocarbons over ZSM-5-type high-silica zeolites modified with nanosized powders of molybdenum (4.0 wt %) and silver (0.1–0.5 wt %) is reported. The acidic properties of the catalysts have been investigated by temperature-programmed ammonia desorption. The microstructure…
Here the emission of Ho3+ions at 2.1 μm in tellurite glasses was explored by fabricating a single mode double cladding Ho-doped tellurite optical fiber, co-doped with Tm3+ions to allow pumping at 793 nm. The intention was to optimize a fiber for future single mode narrow linewidth compact fiber laser for Lidar systems…
In a solution, a dimer of octaethylporphyrin meso-linked by an ethylene bridge (tbis-OEP) may adopt conformational forms the lifetimes of the S 1 state of which are considerably different (7 ns for the P′ and ∼6–9 ps for the P and U forms). In this work, we propose new structural models for these forms based on calcul…
Since the field of molecular electronics originated in the 1970s, the sulfur-containing heterocycle tetrathiafulvalene (TTF) has played a leading role. The reason for this is its ability to undergo two reversible one-electron oxidation steps at potentials that can be finely tuned by either peripheral substitution or b…
The present study analyses the effects of the enzymatic treatment with Pergalase A40 (a blend of cellulases and hemicellulases) on an industrially recycled pulp made up of old corrugated container (OCC) fibers, kraft liners and a low percentage of white office paper. The enzymatic treatment was carried out through a 2…
We predict a low-dense phase of ternary boron-carbon-nitrogen compound with a cubic symmetry, named as ld-BC 2 N. Crystal and electronic structures are studied by the ab initio pseudopotential density functional method. Lattice constant, electronic band structure and density of state as well as the phonon spectrum of…