Materials Literature
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Summary form only given. Direct methanol fuel cells (DMFCs) are expected to be promising power sources1,2. However, one of the main barriers for the commercial is the high cost and slow kinetics of the catalyst (e.g. platinum), which is usually used as the catalysts both in the anode and cathode. In this respect, the…
P-doped ZnO thin films were prepared on different Si substrates by RF magnetron sputtering in Ar and O2mixed atmosphere. The P-doped ZnO films were changed from n-type to p-type by phosphorus diffusing from the n-Si substrates with higher phosphorus concentration into the ZnO films during depositing. The crystal struc…
Optimizing the performance of optical fibres or photonic devices often boils down to the identification of a proper dielectric material, or to a systematic modification of an existing basic material. With modern ab initio simulation methods based on density functional theory, it is possible to model dielectric propert…
A laminate of silver/atomic layer deposition TiN/Si was prepared to research the thermal reliability. The atomic layer TiN was subjected into different kinds of plasma to modify its surface chemistry. The surface tension of the TiN/Si surface was found to be reduced by O2 plasma bombardment. The reaction mechanism of…
Summary form only given. A microplasma based on a microstrip split-ring resonator1(SRR) discharge has been used in atmospheric pressure gas mixtures to deposit hard films onto glass substrates. The SRR can generate steady-state plasma densities2on the order of 1014cm-3, potentially allowing access to unique materials-…
Hafnium or zirconium layers of thickness from a fraction of geometrical monolayer up to 2 monolayers were vapor-deposited under ultra high vacuum on the surface of the (100)-oriented W single crystal and gradually annealed at various temperatures from 300 to 2100 K. Intermixing, interdiffusion, and alloying of Hf or Z…
The corresponding salt of 1,2,13,14-four carboxyl-24-crown-8 was synthesized using the triethylene glycol and the sodium-potassium tartrate as mainly raw materials, then the goal product:1,2,13,14-four carboxyl-24-crown-8 was taken through the hydrochloric acid acidification.The idea synthesis technological conditions…
A system for the calibration of wideband wattmeters used in the measurement of standby electrical power in accordance with IEC 62301 has been developed at the National Measurement Institute, Australia (NMIA). The system has been tested with current waveforms having crest factors up to 20 and has uncertainties signific…
Taking polyether dihydroxy alcohol, toluene diisocyanate (TDI) and dimethylolpr- opionic acid (DMPA) as raw materials, aromatic polyether waterborne polyurethane emulsion was synthesized. And then the effects of isocyanate/macroglycol molar ratio(R value), amount of DMPA, neutral degree and temperature on the properti…
Abstract The kinetics of nucleophilic substitution of dimethylsulfoxide by chloride ion in bis-dimethyl sulfoxide dimethyltin(IV) dichloride and bis-dimethyl sulfoxide diphenyltin(IV) dichloride in micellar microenvironment (1.0 × 10–2 M SDS in aqueous solution of ethanol (1:1, v/v) has been studied conductometrically…
In this paper, the structure of a liquid and character of its flow in carbon nanotube is investigated. A review of the literature and the results of experiments show that the simulation of fluid flow for nanoscale systems should be based on the continuum hypothesis taking into account the quantized character of the li…
In this paper, a combined strategy to destruct a population of microbubbles selectively and rapidly on a diagnostic ultrasound scanner was proposed, in which a long, high-PRF sequence of focused pulses was used to form a focal region and a parallel imaging sequence was used to monitor the microbubble destruction. We t…
We investigated the vacuum potential barriers of various graphene edges. It is found that the exchange-correlation potential correction is significant to the edge structures with electronegativity higher than carbon. The correction leads to the local work function decreased by more than 1 eV for the O terminated edge.…
We analyze and experimentally demonstrate the design of an ultrathin quarter-wave plate based on detuned plasmonic nanoantennas. We explore the theoretical possibilities offered by thin metasurfaces to manipulate the polarization state of impinging light, and propose an optimal design to realize quarter-wave metasurfa…
Summary form only given. We present self-consistent numerical fluid modeling of 2.45 GHz cold non-magnetized plasma along a plasma-dielectric in terface at conditions similar to those in cold plasma processing equipment. In such plasmas local electron plasma resonance is known to occur where the local electron density…
Summary form only given. A development of high-resolution X-ray microscope with a new type of field emission electron source is now in progress. The X-ray microscope is equipped with a lithium liquid metal electron source (Li-LMES) as a high brightness source and the specially designed electron optics with scanning el…
Immobilized lipase Novozym-435 catalyzed regioselective synthesis of glucose and undecylenic acid(UA) to produce glucose mono-ester in Organic solvents was investigated. Reactionconditions were tested in order to produce the mono-ester more rapidly and in higher yield, the optimal conditions were obtained as: temperat…
Five different multifunctional nitro octaphenyl silsesquioxane (NPS) were Synthesised and reduction was carried out to obtain amino octaphenyl silsesquioxane(APS). These compounds were characterized with elementary analysis, fourier transform infrared(FTIR), nuclear magnetic resonance (NMR, 29Si), wide-angle X-ray dif…
A novel Gadolinium complex Gd (C3O9H6) has been synthesized from a hydrothermal reaction and the crystal structure has been determined by means of single-crystal X-ray diffraction. The Gd atom is coordinated by sixteen O atoms. The two-dimensional layered structure is formed and exhibits extensive O-H…O hydrogen-bondi…
Stereotactic Body Radiation Therapy (SBRT) is an option for early stage non-small cell lung cancer treatment. In SBRT treatment, high biological effective dose is delivered to the patient within a small number of fractions. High level of confidence in accuracy is required in the entire treatment procedure, from patien…