Materials Literature
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This paper proposes a vertical alignment cell based on a negative anisotropy nematic liquid crystal doped with pentacene. The device shows a lower operating voltage and faster dynamic response time compared to a vertical alignment cell without pentacene. The dielectric anisotropy, elastic constant and rotational visco…
Abstract SOFC anodes that contain substantial amounts of nickel, easily lose mechanical integrity due to redox cycling. One of the solutions to that, is to replace nickel with compounds that exhibit low volume changes between oxidising and reducing conditions. This paper gives the results obtained on anode assemblies…
In this study, the excitonic luminescence behaviors of ZnO thin films in the temperature range of 10–300 K were investigated. The photoluminescence (PL) spectrum exhibits the bound-exciton emission and the donor-acceptor recombination accompanying its multiphonon replicas at low temperatures. The observed features exh…
Several 1,4-benzoquinone derivatives carrying oxy-TEMPO radical(s) at the 2-position or 2,5-positions were found to give black crystals by recrystallization from pale yellow solutions and it was revealed from their crystal structures that unusual single-component CT complexes were formed, in which a nitroxide moiety p…
The influence of the nature and concentration of lithium salts on the physicochemical properties (electrical conductivity and dynamic viscosity) of lithium polysulphide solutions in sulfolane was studied. We established that the viscosity of lithium polysulphide solutions increased significantly when lithium salts wer…
Abstract The melting point for the tetragonal and cubic phases of zirconia (ZrO2) was computed using Z-method microcanonical molecular dynamics simulations for two different interaction models: the empirical Lewis-Catlow potential versus the relatively new reactive force field (ReaxFF) model. While both models reprodu…
Nanocomposites of cured epoxy resin reinforced by single-walled carbon nanotubes exhibit a plethora of interesting behaviors at the molecular level. We have employed a combination of force-field-based molecular mechanics and first-principles calculations to study the corresponding binding and charge-transfer behavior.…
A new relative-humidity sensitive ink based on methylene blue and urea is described which can utilise the deliquescent nature of urea.
Using an exact nonequilibrium Green's function formulation, the phonon Hall effect (PHE) for paramagnetic dielectrics is studied in a nanoscale four-terminal device setting. The temperature difference in the transverse direction of the heat current is calculated for two-dimensional models with the magnetic field perpe…
Abstract Kinetics of isothermal formation of poly (acrylic acid) (PAA) hydrogels through polymerization of acrylic acid and crosslinking of the PAA formed in a conventionally heated reaction system and in a microwave heated reaction system were investigated. It was found that in the microwave heated system the reactio…
The unequivocal solid-state structure and stereochemistry of the hetaryl leuco-TAM dye, 2,2’-(2-phenyl propane- 1,3-diylidene) bis(1,3,3- trimethylindoline) derivatives were established using X-ray single crystal analysis. The X-ray crystal analysis showed that the (Z, E)-isomers only formed stereoselectively, with a…
<TEX>$CuInS_{2}$</TEX> nanoparticles were synthesized by a simple sonochemical method; First, Cu nanoparticles were prepared from <TEX>$CuInS_{2}$</TEX> in methanol solution by a one pot reaction through the sonochemistry under multibubble sonoluminescence (MBSL) conditions. Second, the resulting Cu nanoparticles were…
OBJECTIVE: The educational objectives for this self-assessment module are for the participant to exercise, self-assess, and improve his or her understanding of the safe use of iodinated and gadolinium contrast and to know the standards of practice regarding their use in the pregnant and lactating patient. CONCLUSION:…
Abstract The participation of hydrogen‐arsenate group (AsO 3 OH) 2− in solid‐state compounds may serve as a model example for explaining and clarifying the behaviour of As and other elements during weathering processes in natural environment. The mineral geminite, a hydrated hydrogen‐arsenate mineral of ideal formula…
In this work, we discuss why classical thermoelectric theory is not enough to design an optimized energy harvester. Then, the general conditions are defined, which are required to make a thermoelectric converter effective in such application. The necessity of the work has been prompted by the fact that while modeling…
Abstract Poly( N ‐[4‐( N ′‐phenyl amino carbonyl)phenyl]maleimide), poly(PhPM), has been investigated for the inhibition of the thermal degradation of rigid poly(vinyl chloride) (PVC) in air, at 180°C. Its stabilizing efficiency was evaluated by measuring the length of the induction period, the period during which no…
We present a theory of the influence of band renormalization and excitonic electron-electron interaction effects on the optical conductivity $\ensuremath{\sigma}(\ensuremath{\omega})$ of doped bilayer graphene. Using the Keldysh formalism, we derive a kinetic equation from which we extract numerical and approximate an…
In the present study, we elucidated the effect of potassium salts on alkali denatured hen egg white lysozyme (EC 3.2.1.17) using intrinsic/extrinsic fluorescence as well circular dichroism (CD) spectroscopic methods. Intrinsic fluorescence studies revealed that various potassium salts mediate stabilization of lysozyme…
By combining experimental and theoretical efforts we study the optical properties of single-layer, double split-ring resonators at oblique incidences for terahertz frequencies and reveal their angular dependent effective properties. Contrary to what is usually anticipated, for incidence angles deviating from normal we…
Nanosized metal oxide halogen adducts possess high surface reactivities due to their unique surface morphologies. These adducts have been used as reactive materials against vegetative cells, such as Escherichia coli as well as bacterial endospores, including Bacillus subtilis and Bacillus anthracis (Delta Sterne strai…