Materials Literature
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Substantial progress in the production of hydroxyl-free silica fibers (dry optical fibers) have led to transmission wavelength region from 1.2 to 1.7 µm, thus it is attractive to explore superbroadband luminescence sources for broadband near-infrared (NIR) optical amplifiers, and tunable lasers operating in this entir…
Amorphous silicon-germanium films were prepared by radio frequency plasma enhanced chemical vapor deposition (RF-PECVD) on the glass. The structural characteristics, deposition rate, optical band gap and photosensitivity of the silicon-germanium thin films had been investigated at different substrate temperatures. It…
A new photochromic diarylethene bearing hexatomic ring aryls was synthesized efficiently. Its photochromic properties were examined, it underwent reversible cyclization and cycloreversion reactions upon alternating irradiation with UV and Vis light both in solution and in PMMA film. The fluorescence property of the ph…
The aims of work were theoretical analysis of thermo-optic effects occurring inside Nd:YAG ceramic gain elements and its experimental verification under high heat loads. For theoretical analysis we have applied the semi-analytical models based on thermo-elasticity theory and compared it to results obtained applying CO…
Toward to realizing a novel drug delivery system, a simulation system is considered to be important for a future analysis of it. In this paper, a novel, miniature, and energy-efficient bio-mimetic propulsion concept was proposed. The antibody binding technique is developed and used to attach bacteria to liposome's sur…
A novel composite right/left handed transmission line (CRLH TL) on Si wafer by a green semiconductor integration nanotechnology is presented, designed by calculation, and demonstrated by experiments. First, a coplanar waveguide (CPW) and interdigital capacitance implementation of a CRLH TL is described. A simple circu…
Fourier modal methods, originally developed for modeling diffraction by relief gratings, have recently evolved into efficient tools for full-vector modeling of optical field distribution in high-contrast photonic guided-wave devices. In this paper we discuss mainly 2-D methods, with particular attention to boundary co…
A solvothermal method was used to synthesize functionalized graphene, which exhibits an ultrahigh capacitance. This solvothermal method allows a fine control of the density of functionalities on graphene surface. The structure of resulting functionalized graphene is characterized by X-ray photoelectron spectroscopy (X…
In this paper, HZSM-5 zeolites were modified by aluminium nitrate using the method of impregnation. And the catalytic performances of samples on alkylation of phenol with isopropanol were reviewed. Results show that: after modified with aluminium nitrate, selectivity to o-isopropylphenol was increased and p-isopropylp…
In this paper a comparison between two active power filters is presented; both filters, the ARD and the HVC, are used for the active resonance damping in a distribution line. The ARD is an active power filter whose control strategy is typical for the resonance damping so that the harmonic voltage compensation is a wel…
Nanosized titanium dioxide particles doped with rare earth element cerium were prepared by sol-gel method. Particle size and photocatalytic activity was characterized by X-ray Diffraction and Ultraviolet-visible light spectroscopy. Treatment of Methyl orange wastewater using prepared TiO2photocatalyst was studied and…
The degradation of bearing preload and the creep of magnetic steel properties are the main degradation causes of inertial platform systems heading sensitive drift, gyroscopes installation error and other system parameters in the long-term storage conditions. Combining the bearing preload theory and magnetic steel prop…
For shaping a beam of millimeter-wave reflectarrays arbitrarily, this paper proposes a directivity synthesis based on the algorithm of the phase-retrieval method. The unknown phase distribution is numerically determined from an illumination distribution on the aperture and a desired beam pattern by iterative approach.…
Zn nanoparticles at room temperature show two absorption peaks in the near-infrared (NIR) and the ultraviolet (UV) regions, both of which satisfy the criterion of surface plasmon resonance (SPR). From X-ray diffraction at high temperatures, it was found that the Zn nanoparticles in SiO2melt at 360-420°C and solidify a…
There is an ongoing need in the microelectronics industry to increase circuit density in multilevel back-end-of line (BEOL) interconnects to improve the operating speed and reduce power consumption. One way to maintain capacitance-resistance (RC) performance, without de grading yield or reliability is through introduc…
This paper addresses the simulation of carbon nanotube interconnects with the inclusion of the effects of parameter uncertainties due to the fabrication process. The proposed approach is based on the available state-of-the-art models of nanointerconnects and on the expansion of the voltage and current variables in ter…
A facile mercury (II) ions absorbent was prepared by surface sol-gel process and functionalized monolayers treatment using filter paper as supports. The resulting functionalized monolayers on filter paper-silica gel composites supports remained the original complex morphology of filter paper and its filterable charact…
High surface area activated carbon (AC) obtained by KOH activation was pulverized by ultrasonic air-jet pulverization equipment and the effect of particle size of AC on rate performance of electric double layer capacitors (ECs) was investigated by electrochemical impedance spectrometry using an equivalent circuit mode…
Langatate (LGT) is a member of the langasite family of crystals appropriate for high-temperature frequency control and sensing applications. This paper identifies multiple LGT SAW orientations for use at high temperature, specifically in the 400 to 900°C range. Orientations with low sensitivity to temperature are desi…
Surface plasmon polaritons (SSP), moving along a smooth curved interface between two isotropic media with slowly varying dielectric permittivities and magnetic permeabilities and supporting SSP, are studied theoretically. Solutions of Maxwell equations are investigated within a small wavelength limit in the boundary l…