Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
A single cell gap transflective liquid crystal display (TR-LCD) using dual fringing field switching mode is proposed, in which a positive dielectric anisotropy liquid crystal is vertically aligned and driven by fringing fields from both substrates. By optimizing the electrode width and gap of the transmissive and refl…
Abstract The surface morphology and physical (density), optical (refractive index), and mechanical (hardness, elasticity) properties of amorphous hydrogenated silicon carbide (a‐SiC:H) films produced by remote microwave hydrogen plasma (RHP)CVD from a triethylsilane precursor are investigated. The effect of substrate…
We experimentally demonstrated the amplification of optical disk readout signals by homodyne detection. This technique uses optical interference to amplify the signals. We further applied phase-diversity detection to reliably obtain the amplified readout signal. The optical system was carefully designed so that a suff…
Summary Hydraulic fracturing has become a state-of-the-art stimulation technique. It has been proved over the years that significant production increase can be obtained by applying the right fracturing technique. Now, the most advanced techniques of geothermal-energy-recovery systems widely use hydraulic fracturing. T…
This article presents the analysis of photoluminescence (PL) spectra of CdSe∕ZnS quantum dots (QDs) with and without bioconjugation to biomolecules, Interleukin 10 (IL10) antibodies. Commercial CdSe∕ZnS QDs used in the study are characterized by the color emission with the maximum at 605nm (2.05eV). It is shown that P…
Covers advancements in spacecraft and tactical and strategic missile systems, including subsystem design and application, mission design and analysis, materials and structures, developments in space sciences, space processing and manufacturing, space operations, and applications of space technologies to other fields.
Four novel nonsymmetric dimers containing azobenzene mesogenic groups were synthesized. The nonsymmetric dimers compounds namely, ethyl 4-[(4-{4-(4-((4-nitrophenyl)diazenyl)phenoxy)alkyloxy}phenyl)diazenyl]benzoate were obtained from the alkylation of ethyl 4-[(4-(4-bromoalkyloxy)phenyl)diazenyl]benzoate with 4-[(4-ni…
We present first-principles investigations on the structural, electronic, and polarization properties of Bi2ZnTiO6 using density-functional theory within the generalized gradient approximation. The theoretical structure we obtained confirms the extra large tetragonality observed by experiment. The materials exhibit a…
The low-temperature minimum of the resistivity of La0.85Ag0.15MnO3 is investigated in detail. Analysis of the experimental data shows that the observed low-temperature minimum of the zero-field resistivity and the large magnetoresistive effect, which increases with decreasing temperature, can be explained in a model o…
For some years ceramic bearing balls based on silicon nitride have been routinely used in technical practice. An important property of bearing balls is their strength, but appropriate testing methods are still missing. In this paper four different methods for strength testing are applied to commercial bearing balls. E…
Abstract The manufacture of core yarn from polyester-cotton is one of the most important developments in the textile industry. The use of core yarns is mainly aimed at improving the strength, comfort, durability, aesthetics, and other functional properties of the final yarn. This article reports the results of investi…
The Zn1−xCoxO (x=0–0.20) nanocrystals synthesized via sol-gel method have been systematically investigated by using x-ray diffraction, transmission electronic microscopy (TEM), Raman spectrometer (Raman), UV-vis spectrometer (UV-vis), and vibrating sample magnetometer. It is found that the crystal lattice constant (a)…
The combination of the SHS technique and the Spark Plasma Sintering (SPS) technology was adopted in this work for the fabrication of fully dense MB 2 -SiC and MB 2 -MC-SiC (M = Zr, Hf) Ultra High Temperature Ceramics (UHTCs). Specifically, Zr or Hf, B 4 C, Si, and (for the cases of ternary systems) graphite powders we…
Polypyrrole formation initiated by UV/VIS irradiation and stabilization of (CdSe)ZnS quantum dots is reported. Presented results demonstrate that UV/VIS irradiation is slowly destructing Q-dots that decreases quantum yield and shifts peak of photoluminescence (PL) spectra to short wavelength range. The same Q-dot solu…
Heteropolyacid (H14 [NaP5W30O110])/SiO2 nano particles were synthesized by a micro emulsion technique. The morphology and size of these nano particles were characterized using, transmission electron microscopy and X-ray diffraction. In a designed photo reactor, the photo degradation of methyl orange as common azo dye…
A new class of 32 n 2 boron cages which are made closed by six squares is proposed and a procedure to build such cages using an α-boron sheet is described. Each member from this infinite set of boron cages has a structure that is compatible with the most stable α-boron sheet that maintains an optimal balance of the tw…
A comparative first principles study has been carried out for EuLiH3 (ELH) and EuTiO3 (ETO) using the generalized gradient approximation +U approach. While ELH exhibits ferromagnetic ground state for all volumes, the magnetic ground state of ETO has the tendency to switch from G-type antiferromagnetic to a ferromagnet…
3-{[8-(trlfluoromethyl)quinolin-4-yl]thlo}-N'-(2,3,4-trihydroxybenzylidene)propano hydrazide (TQTHBH) was synthesized, characterized and tested as a corrosion inhibitor for mild steel in HCl and H 2 SO 4 solutions using weight loss method, electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization m…
The Texas Department of Transportation (TxDOT) operates thousands of traffic signals along state highways in the state of Texas, both in rural areas and small cities. The timing and maintenance of these signals are the responsibility of the TxDOT districts in which they are located. As a result, each district has an i…
(1− x )(Na 0.5 K 0.5 )NbO 3 – x AgSbO 3 lead‐free piezoelectric ceramics were prepared by normal sintering. The effects of the AgSbO 3 on the phase structure and piezoelectric properties of the ceramics were systematically studied. These results show that the AgSbO 3 ‐modified (K 0.50 Na 0.50 )NbO 3 lead‐free piezoele…