Materials Literature
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<div class="htmlview paragraph">A new fuel injection strategy is proposed for DME engines. Under this strategy, a pre-injection up to 40% demand is conducted after intake valves closing. Due to high volatility of DME, a lean homogeneous mixture can be formed during the compression stroke. Near TDC, a pilot injec…
We report separate domain formation in cosputtered Ge2Sb2Te5–SiOx mixed layer, with SiOx amount less than 10mol%. As-prepared Ge2Sb2Te5–SiOx layer exhibits amorphous phase with separate domains smaller than 20nm. The separation maintains after thermal annealing, which results in crystallization into fcc phase. The cry…
<div class="htmlview paragraph">For diesel emission control systems containing a Diesel Oxidation Catalyst (DOC) and a Catalyzed Soot Filter (CSF) the DOC is used to oxidize the additional fuel injected into the cylinder and/or the exhaust pipe for the purpose of increasing the CSF inlet temperature during the s…
The authors report on the consolidation of nanostructured bulk cubic zirconia with a grain size of about 15nm and a relative density greater than 98%. This material exhibits a change in the conduction mechanism with considerable protonic conductivity when exposed to moisture. The marked reduction of the resistivity of…
Two kinds of magnetic tunnel junctions with Co2FeSi electrodes are compared. Using Co2FeSi single layers a tunnel magnetoresistance of 52% is reached, whereas the magnetization of the Co2FeSi is only 75% of the expected value. By using [Co2MnSi∕Co2FeSi]x10 multilayer electrodes the magnetoresistance can be increased t…
Ag ions were implanted at 200 keV into silica with nominal doses ranging from $5\ifmmode\times\else\texttimes\fi{}{10}^{16}$ to $2\ifmmode\times\else\texttimes\fi{}{10}^{17}\text{ }\text{ }\mathrm{\text{ions}}/{\mathrm{cm}}^{2}$. We find that nanovoid-containing Ag nanoclusters form in the implanted samples with doses…
Developing high damping materials with high strength is of significant technological importance, and Ti–Ni-based alloys are attracting much attention in this respect. The high damping peak in martensite state has been shown to be related to the interaction between twin boundary and hydrogen according to recent studies…
Si excess, Er content, and processing parameters have been optimized in a series of cosputtered oxide layers for maximizing Er emission and lifetime. The amount of excited Er as a function of the incident photon flux has been quantified for resonant (488nm) and nonresonant (476nm) excitations. Results show that a maxi…
Abstract An inhibitory compound acting against rat platelet 12‐lipoxygenase was isolated from the peel of Lumie fruit ( Citrus lumia ) by activity‐guided separation. It was identified as eriocitrin (eriodictyol 7‐ O ‐rutinoside) by spectroscopic analyses. Eriocitrin inhibited 5‐lipoxygenase (IC 50 29.1 µmol L −1 ) fro…
Sm–Fe–N bulk magnet was produced by the compression shearing method. X-ray diffraction studies revealed that the magnet retained the original Sm2Fe17N3 phase structure without any appreciable decomposition of the Sm2Fe17N3 phase and that this phase had a pronounced crystallographic alignment. Magnetic measurements con…
The authors demonstrate herein a new route to introduce two-dimensional nanostructures into a bulk thermoelectric material using a hydrothermal coating technique. A very thin Pb0.75Sn0.25Se crystalline layer (typically about 30nm) is fabricated onto the surfaces of micron-sized Pb0.75Sn0.25Te seed particles. Compared…
This work investigates the formation of silicon/multiwalled carbon nanotube/silicon heterojunctions by in situ synthesizing carbon nanotubes between two heavily doped, suspended silicon microstructures that are separated 5–10μm apart using the techniques of localized heating and electric-field-assisted self-assembly.…
Efficient room temperature (RT) photoluminescence (PL) is achieved on ZnO multiple quantum wells (MQWs) grown on sapphire by pulsed laser deposition using a buffer assisted growth scheme. Absorption spectra of these MQWs at RT showed the excitonic features entwined with the band edges, which pointed to the excitonic n…
<div class="htmlview paragraph">NO<sub>x</sub> reduction product speciation during regeneration of a fully formulated lean NO<sub>x</sub> trap catalyst has been investigated using a bench-scale flow reactor. NH<sub>3</sub> and N<sub>2</sub>O were both observed duri…
The interaction of laser-generated single inertial bubbles (collapse $\text{time}=121\phantom{\rule{0.3em}{0ex}}\ensuremath{\mu}\mathrm{s}$) near a silicon rubber membrane with a shock wave ($55\phantom{\rule{0.3em}{0ex}}\mathrm{MPa}$ in peak pressure and $1.7\phantom{\rule{0.3em}{0ex}}\ensuremath{\mu}\mathrm{s}$ in c…
The authors report the fabrication and characterization of high-mobility thin-film transistors (TFTs) using layer-by-layer (LBL) nano self-assembled single-walled carbon nanotubes (SWCNTs) as the semiconducting material and SiO2 nanoparticles as the gate dielectric material. The channel length and the effective thickn…
Single-walled carbon nanotube diodes are fabricated in a split-gate geometry with electron (n) and hole (p) regions separated by a central region. With the central region gated p or n type the diodes “leak” at low voltages, likely due to tunneling across the smaller depletion region. With the central region intrinsic,…
Abstract Despite eggs having a natural packaging—shell—they are perishable and can lose their quality during storage. Chitosan‐based coatings were applied to shell eggs to examine potential effects on egg quality properties (weight loss, Haugh unit, yolk index) during 4 weeks of storage. Mineral amounts in yolks were…
3 mol % Mn -doped 0.71Pb(Mg1∕3Nb2∕3)O3–0.29PbTiO3 single crystals were grown by a modified Bridgman technique. The pyroelectric properties and thermal stability of the crystals were investigated. Mn substitution resulted in an enhanced pyroelectric coefficient and a lower dielectric loss, which led to the improvement…
Gate modulated transport in semiconducting single-wall carbon nanotubes shows significant hysteresis in their transfer characteristics. The origin of this hysteresis is generally attributed to the screening of the gate voltage due to the movement of mobile charges/ions in the inherent presence of a trapping/detrapping…