Materials Literature
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Degradation of leakage currents in various types of solid tantalum capacitors under steady-state bias conditions was investigated at temperatures from 105°C to 170°C and voltages up to two times the rated voltage. Variations of leakage currents with time under highly accelerated life testing (HALT) and annealing, ther…
In this paper a very simple but smart method to compensate the hysteresis of the sensor signal of a force sensor based on the magneto-elastic-effect is introduced. The compensation is tricky because it must meet some stringent requirements. First of all the hysteresis model has to be invertible and the calculation com…
In order to develop a noncontact surface resistivity measurement technique, the corona charging of a test material with simultaneous measurement of an induction current caused by a traveling surface charge was investigated using phi-type electrodes. The phi-type electrode consists of a high-voltage needle electrode th…
The molecular composites of ladder polyphenylsilsesquioxane (Ph-LPSQ) and alkoxy substituted polyisophthalamide (Cn-PA) are in situ prepared for the first time by supramolecular template directed synchronous two-step synthesis, mainly including (A) self-assembled ladder superstructure-based synchronous growth polymeri…
In this work, thinky mixing method was used to disperse multi-walled carbon nanotubes (MWCNT's) and carbon nanofibers (CNF's) in SC-1 epoxy either in isolation or in combination with 3-roll shear mixing. To achieve better dispersion, MWCNT mixing with SC-1 resin directly or pre-mixed with a solvent and then mixed with…
The plastic deformation behavior of forward extrusion, equal channel angular pressing, and a combination of the forward extrusion and equal channel angular pressing processes are analyzed by the finite element method. Simulations were carried out under realistic conditions by considering the strain hardening of the ma…
The MAO coating was prepared on biomedical alloy by micro-arc oxidation (MAO) in sodium aluminate (NaAlO2) solution using pulsed bipolar power supply. It was found that the coating consists of O, Al, Ti and Ni, and Ni concentration in the coating surface is much lower than that of Ni in the NiTi substrate. The concent…
The new phase field model for strongly anisotropic systems proposed by Torabi et al. was employed to simulate the faceted cellular growth in three dimensions. Simulation reveals the whole formation process of the faceted cellular clearly. Simulation results also show that a linear relation of undercooling and growth v…
Highly luminescent Si nanoparticles (NPs) terminated with alkoxy monolayers have been synthesized via sodium biphenylide reduction of SiCl4 encapsulated with inverse micelles of dimethyldioctylammonium bromide in a mixture of toluene and glyme, and subsequent alkoxylation of surface Si–Cl bonds. The optical absorption…
The DPF regeneration technology of diesel engine based on catalytic combustion of fuel injection is introduced. The regeneration of the diesel particulate filter is completed by combining DOC and DPF, oxidizing unburned HC through DOC so that the temperature rose to 500~600°C, igniting particles. The use of air-assist…
OPINION article Front. Pharmacol., 28 May 2010Sec. Ethnopharmacology Volume 1 - 2010 | https://doi.org/10.3389/fphar.2010.00005
Polymer films of polyethyleneoxide (PEO) or poly(L-lactide) (PLLA) containing a single-source precursor for either PbSe or PbTe were used to produce films of nanoparticles of these thermoelectric materials. The monomeric homoleptic chalcogenolates lead(II) bis-(2,4,6-trifluoromethylphenylselenolate) Pb[SeC(6)H(2)(CF(3…
On-line measurement of hydrogen isotopes in corrosive environments is essential for the development of liquid blanket systems for fusion reactors. In the present study, a Pd membrane electrode for a solid electrolyte hydrogen sensor was developed. An electrode fabricated on the sensor surface was metallurgically analy…
The results of a study of algae taxonomic diversity from hot springs of Kunashir, Shiashkotan, and Yankicha Islands (Kuril Islands, Russia) are presented in the current paper. Algal flora includes 163 species (180 species and infraspecific taxa) of 4 divisions: Cyanoprokaryota, Euglenophyta, Bacillariophyta, and Chlor…
The combination of breath figure templating to produce macro pores and surfactant self-assembly to induce micro-phase separation at the nanometre length scale are demonstrated for obtaining macro-mesoporous silica or mixed-oxide films. Control of the humidity or temperature was not necessary, and simple coating techni…
Barium titanate films grown under a -rich atmosphere display a high dielectric constant and therefore can be employed as electrolytes in the all-solid-state supercapacitors. This behavior was attributed to the accumulation of protons at the metal–electrolyte interface over a Debye length (capacitive double layer). Ele…
Due to their exceptional properties, large amounts of single-walled carbon nanotubes (SWCNTs) have been increasingly used in a wide range of applications, and consequently, the economical production of high quality SWCNT is becoming a matter of major concerns. For this reason, carbon black is getting increasingly popu…
We performed the electrical resistivity measurements under high pressures up to 16 GPa for FeTe0.92. The compound has a structure analogous to iron-based superconductor of FeSex, but does not show superconductivity. It exhibits a structural transition and an antiferromagnetic (AFM) transition. It is expected that if t…
A magnetic quantum dot (MQD) based cellular nanoprobe, composed of a magnetic oxide nanoparticle component and a quantum dot component, has been synthesized and used for both imaging and separation. The successful synthesis is based on a reverse micelle based polyacrylate coating in the presence of component nanoparti…
The efficacy of hydroxyapatite (HAp) nanocoating on polyester vascular grafts was investigated in animal experiments. The HAp nanocrystals were covalently bonded separately between hydroxyl groups on a nanocrystal and alkoxysilyl groups in gamma-methacryloxypropyl triethoxysilane graft polymerized on a polyester subst…