Materials Literature
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This paper presents the new balanced front-end SAW modules with the improved selectivity at the low frequency offsets and fractional bandwidth of 1.5–4% for the 440–470 MHz handheld transceivers. The modules contain 2 SAW filters connected across a low noise bipolar transistor amplifier. The balanced longitudinally-co…
Iron oxide nanoparticles are promising candidates for drug delivery systems to treat osteoporosis due to their biocompatibility and magnetic properties. Magnetite and maghemite nanoparticles were synthesized here using a co-precipitation method. The particles were characterized by transmission electron microscopy (TEM…
Purified carbon nanotubes (with removed toxic catalytic particles) have been considered as novel materials for drug delivery and for generating artificial organs more efficiently due to their unique surface features. Traditionally, the surface chemistry of carbon nanotubes has been modified through various functionali…
Inductive heating method was used to synthesis regular tetrapod-like zinc oxide within 1 minute in the air. The synthesis of the nanostructure was interpreted by the Vapor-Solid (VS) growth mechanism. The nanostructure was verified to be pure ZnO nanostructure by X-ray diffraction (XRD) spectrum. Field emission measur…
This paper presents an overview of thermal analyses of micro-electronics and micro-systems presented in the thermal analysis Track at EuroSimE since the inception of the conference in 2000. This overview is based on a bibliography of approximately 140 papers compiled in this paper. The achievements of the conference i…
The negative bias temperature instability (NBTI) characteristics of p-channel field-effect transistors with diamond-like carbon (DLC) liner stressor having ultra-high compressive stress (>5 GPa) are investigated for the first time. Ultra-Fast Measurement (UFM) was employed for NBTI study. Power law slopes ranging from…
The surface flashover performance of insulators is the critical factor strongly influencing the voltage hold-off capability of high voltage vacuum devices. Based upon the simulations of electric fields, the influences of residual gas pressure, alumina insulator materials and cathode electrode geometries on the pulsed…
Among emission gases, a Diesel Particulate Filter(DPF) to reduce PM, while a Diesel Oxidation Catalyst(DOC) or NH3-SCR using Urea for reduction fo NOx, are heavily studied around the world for commercial application. Moreover, to meet values of the strict regulations, a combination of emission reduction devices are re…
In this paper we present the design, fabrication and test of a MEMS resonator including a field emission gauge for the measurement of the resonator movements. The device is made of an in plane vibrating structure containing electrostatic actuation electrodes as well as a dual tip field emission structure. One tip is f…
The automotive industry is in the driving seat of ‘green ‘composites because it is here that the needs is greatest. A logical starting point is to take recyclable thermoplastic resigns, and combine them with biodegradable plant-based fibers. Natural fibers have the potential to reduce vehicle weight up to 40% compared…
In this study, corn starch was taken as the raw material and its filming property was studied through single-factor experiments and orthogonal experiment. The results showed that there were significant effects on properties of the corn starch films under different corn starch concentration, glycerol concentration, CMC…
Substrates of ytrria stabilized zirconia electrolyte were prepared by the ceramic injection molding, and then composite electrode slurry was made of platinum powder and yttria stabilized zirconia powder by ball milling, and then was brushed on both surfaces of the zirconia substrate. After this, the Pt/YSZ composites…
Article Crystal structure of imidazolium trialuminium dodecaoxotriphosphate monohydroxide, [C3H5N2][Al3P3O12(OH)], AlPO4-21 was published on April 1, 2009 in the journal Zeitschrift für Kristallographie - New Crystal Structures (volume 224, issue 1-4).
A successful engineered tissue construct must acquire a functional microvascular network that rapidly connects to the host circulation. Suspended endothelial cells (EC) within a construct will spontaneously organize into a microvascular system, but maturation depends on recruitment of host mural cells and is slow and…
Lists the recipients of the IEEE Antenna and Propagation Society 2009 Awards.
Avaliou-se o efeito da administração de fluoreto de sódio sobre a tireoide de 12 ovinos, distribuídos em dois grupos: o grupo controle (n=6) recebeu somente sal iodado (5g de NaCl/animal + 0,2ppm I/kg MS) e o grupo tratado (n=6), sal iodado (5g de NaCl/animal + 0,2ppm I/kg MS) adicionado de fluoreto de sódio (4,7mg F/…
Ultra-high vacuum (UHV)-deposited high Ga2O3(Gd2O3) was proved to passivate Ge effectively, as evidenced by comprehensive investigations including structural, chemical, and electrical analyses. The Ga2O3(Gd2O3)/Ge interface is revealed to be abrupt even being subjected to a 500degC anneal, a high kappa value of 14.5,…
Today, one of the limitations associated with cartilage grafting is the lack of bonding between the implanted materials and the natural tissue. Helical rosette nanotubes (HRNs) are novel biomimetic self-assembled supramolecular structures whose basic building blocks are DNA base-pairs, which can solidify into a viscou…
(1) NOAA Earth System Research Laboratory, Chemical Sciences Division, Boulder, USA (steven.s.brown@noaa.gov), (2) Cooperative Institute for Research in Environmental Science, University of Colorado, Boulder, CO, USA, (3) Department of Chemistry, University of Calgary, Calgary, Alberta, Canada, (4) Department of Atmos…
A general numerical scheme based on Landau-Devonshire free energy is applied for ferroelectric thin films undergoing a first order phase transition to describe the influence of imperfect surface layers and depolarization field on profile of polarization P(z) and phase transition temperature. It is known that the physi…