Materials Literature
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By using the scattering matrix method, the authors investigate the transmission coefficient and thermal conductance of acoustic phonon through a three-dimensional abrupt junction at low temperatures. It is found that the transmission coefficient of long-wavelength phonon strongly depends on the geometrical parameters…
The authors report fabrication of multiferroic BiFeO3 (BFO) by the soft electron beam lithography technique. BiFeO3 nanopatterns with less than 100nm characteristic dimension are fabricated from its liquid-phase precursor on diverse substrates. The chemical constituents and phase purity are characterized by transmissi…
BACKGROUND: Prosaposin overexpression and/or genomic amplification have been demonstrated in androgen-independent (AI) prostate cancer cell lines and tissues. Here, we explored the possibility for a functional relationship between prosaposin and androgen receptor (AR) in LNCaP cells. METHODS: The effect of prosaposin…
The behavior of smectic-A liquid crystals with magnetic particles has not been very well characterized. The authors have studied the interaction of a smectic-A liquid crystal with magnetic nanoparticles. They concentrate on the effect of the particles’ surface coating or functionalization compound. The surface coating…
The authors have investigated the ground state magnetic phase and the optical band gap of chemically synthesized Zn0.85Fe0.15O diluted magnetic semiconducting nanoparticles (∼7.5nm). The temperature dependent magnetization study shows strong irreversibility along with a cusplike anomaly, which is ascribed to a freezin…
The authors have studied low-field spin polarized tunneling magnetoresistance (LFMR) at room temperature of a series of nanocrystalline La0.67Sr0.33MnO3 samples having average crystallite size (ϕ) from 14to150nm. Interestingly with decrease in ϕ, LFMR enhances up to a critical ϕ of 28nm, beyond which LFMR starts decre…
The relationship between grain size and domain size distributions has been studied by piezoelectric force microscopy in ferroelectric films with average grain size of 150nm. As the ratio of domain size to grain size increases, the domain size deviation decreases in a 1∕xn-type function, where n is 1.105. Extrapolation…
A single layer of dense (>1011cm−2) Si nanodots on an insulating a-SiN layer was fabricated by the method combining the laser irradiation on the ultrathin amorphous Si films and subsequent thermal annealing. Raman scattering spectroscopy, planar and cross-section transmission electron microscopy were employed t…
Superlattice films have been proposed to get dilute magnetic semiconductor (DMS) with an intrinsic room-temperature ferromagnetism. For a TiO2-based DMS superlattice structure, each layer was alternately doped by two different transition metals (Fe and Mn) and deposited to a thickness of approximately 2.7Å on r-Al2O3(…
We present the results of extensive Monte Carlo simulations of diblock copolymers adsorbed on stripe-patterned surfaces of various widths. We have found that the width of the stripe pattern is an important parameter which dictates favorable recognition on the surface. For certain stripe widths, the adsorption of diblo…
( Pb 0.25 Ba 0.15 Sr 0.6 ) Ti O 3 (PBST) nanotube arrays were prepared using porous anodic aluminum oxide (AAO) template from PBST sol solution. Electron microscope results showed that uniform length and diameter of PBST nanotubes were obtained and that the diameter and length of PBST nanotubes were dependent on the p…
BACKGROUND: Pegylated liposomal doxorubicin (PLD, JNS002) is a formulation of doxorubicin encapsulated polyethylene-glycol coated liposomes with prolonged circulation time and unique toxicity profile. This phase 1 study was aimed at investigating the maximum tolerated dose (MTD), recommended dose, toxicity, pharmacoki…
<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…