Materials Literature
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The exceptional stability of FTO electrodes modified with Ni1−xCox(OH)2 in the alpha polymorphic phase was assigned to Co(II) substitution in the Ni(II) reticule, decreasing the basal plane distances and the average grain size, as confirmed by careful analyses of their X-ray diffractograms and thermal behavior as a fu…
The present work aims to investigate the influence of neodymium addition on the microstructure, mechanical and thermal properties of Mg-Si alloys. Different proportions of (0.3, 0.6, 0.9 and 1.2 wt.%) Nd has been added to the hypo (Mg-1.15Si) and hypereutectic (Mg-6Si) alloys. The microstructural studies reveal that t…
To evaluate local damages of RC columns by the impacts of a high velocity projectile, impact experiments using a gun method were performed for the 1/10 scale RC columns as test specimens. Effects of an amount of main bar and spacing between hoops were examined. Also, scaling effects were evaluated by comparing with th…
The native hierarchical self-assembly process of natural somatostatin-14, a highly aromatic and charged peptide hormone involved in various inhibitory functions, was investigated mainly using vibrational spectroscopy (ATR-FTIR and Raman scattering) combined with electron microscopy. Generic kinetic features of amyloid…
The solid state polymerization (SSP) of PET/PC reactive extrusion blends -with and without cobalt catalyst -at different polymer ratios was studied. Thermal and rheological evaluations were performed. DSC results showed changes in the PET's T g , T ch , T m and X c . The melt flow rate (MFR) decreased for PET and the…
In this study we have purposely altered the solid state luminescence properties of 2-(1,8-naphthalimido)ethanoic acid (NEaH) (0) via molecular salts formation with cyclic amines such as 1,4-diazabicyclo[2.2.2]octane (DABCO), quinuclidine (ABCO), 3-quinuclidinol (OH-ABCO), and piperazine (PIP). All crystalline material…
Here we report a novel pre-shell-post-core method for the fabrication of monodispersed magnetic rattle-type silica (MRS) through an entrapment process, which could be used as a promising theranostic agent for simultaneous magnetic resonance imaging and drug delivery.
The temperature dependence of the generation kinetics of F centers and their aggregates in a LiF/Si(111) thin-film system after irradiation with low-energy (80-eV) electrons was studied by total current spectroscopy. It was shown that, in all cases, low-temperature annealing results in degradation of the formed center…
In this part of the review, the currently implemented elementary quantum algorithms are considered and prospects of the development of the full-scale quantum computer based on NV centers in diamond are discussed. The NV-hybrid systems, which can operate as the communication elements between remote NV qubits, are analy…
Resistance standards with values in the TΩ range play an important role in electrical instrumentation. The calibration of such standards is, thus, a service offered by many metrology institutes. The techniques used to measure very high resistance values differ quite substantially from the calibration techniques applie…
Porous silicon is generally achieved through electro-chemical etching or chemical etching of bulk silicon in hydrofluoric acid based solutions. The work presented here explores the effect of a chemical etching process on a metallurgical grade silicon powder. It is found that the metallurgical grade silicon particles c…
This work deals with the application of [MERCSF-N] computer program in calculating the macroscopic effective removal cross-section of fast neutrons, ΣR (cm－1), for two different boro phosphate glass systems: (0.5 - x) CdO-x Fe2O3-0.4 P2O5-0.1 B2O3 and (0.5 - x) B2O3-x Fe2O3-0.1 CdO-0.4 P2O5 (with 0.05 ≤ x ≤ 0.5 by mol…
Monodispersed chiral mesoporous spheres of nanometer size with high specific area and good thermal stability were synthesized using the chiral anionic surfactant (N-palmitoyl-L-phenylalanine) as a template according to the co-structure directing agent (CSDA) method. The resulting mesoporous nanospheres were characteri…
In our work, graphene oxide (GO) was covalently functionalized with propargyl alcohol to obtain alkyne terminated graphene oxide. These alkyne groups on graphene oxide sheets further reacted with a kind of azido-functionalized liquid crystalline polymer via click chemistry, which was found to be a facile and effective…
The polyamine dendrimer-encapsulated Cu complexes are capable of regioselectively catalyzing the oxidative coupling reaction of 2,6-dimethylphenol to tetramethyldiphenoquinone in high yield. The polyamine dendrimer nanovoids encapsulate Cu ions in such a manner that adjacent Cu centers are able to serve as active spec…
Two lanthanide-containing peroxoisopolyanions [Ln4(WO4)(H2O)16{W7O22(O2)2}4]14− (Ln = LaIII; PrIII), have been synthesized by reaction of Na2WO4 and lanthanide (Ln) ions in the presence of peroxide. These represent the first two examples of peroxo-containing Ln-stabilized polyanions (LSPs), and have the highest number…
Experimental works have been conducted the objective of which was to improve mechanical properties of boron carbide by introduction of doping elements into the system. Titanium and Zirconium were selected as doping elements, which were introduced into the system in the form of TiB2 and ZrB2. Four types of boron carbid…
YAG-Ce, Nd, and Yb phosphors with a triple-doped system are prepared by conventional solid-state reaction method. The fluorescence emission and excitation spectra are measured and analyzed. The influences of Yb 3+ doping concentration on the emission of Yb 3+ and Nd 3+ in YAG-Ce, Nd, and Yb are studied. The fluorescen…
Certain porous silicon (PS) structures have demonstrated energetic characteristics when mixed with an appropriate oxidizer [1-4]. However, limited studies on the effect of PS structure on its combustion have been performed. This work investigates how various material properties of PS films; surface area, porosity and…
The template-directed imine-bond forming reactions between chiral amidines or achiral carboxylic acids monomers bearing a formyl or an amino group at one end were remarkably accelerated 34- or 10-fold in chloroform in the presence of the corresponding optically inactive carboxylic acid dimer or optically active amidin…