Materials Literature
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Due to the abundance of solar energy, solar cells are considered as a renewable source of energy to replace conventional fossil fuels. Compared to the silicon-based photovoltaic (PV) cell, the next generation dye-sensitized solar cell (DSSC) offers the advantages of increased absorption of visible light, high efficien…
A wavelet element method is developed for analyzing lamellar diffraction gratings or grating stacks. The eigenmodes of the grating layers are accurately calculated by this method, and then the diffraction efficiencies of the gratings are calculated by the S-matrix algorithm. The method proposed in this paper consists…
In situ electric field induced domain evolution in Ba(Zr 0.2 Ti 0.8 )O 3 -0.3(Ba0.7 Ca 0.3 )TiO 3 ferroelectrics Appl.Phys.Lett.(September 2014) Dielectric properties of PVDF/0.5(Ba0.7 Ca 0.3 )TiO 3 -0.5Ba(Zr0.2 Ti 0.8 )O 3 composites AIP Conference Proceedings (May 2018) Strong electrocaloric effect in lead-free 0.65…
YhgD is a member of the TetR-family transcription factors, which regulate genes encoding proteins involved in multidrug resistance, virulence, osmotic stress and pathogenicity. YhgD from the alkaliphilic bacterium Bacillus halodurans was cloned and overexpressed in Escherichia coli. YhgD (Bh2145) from B. halodurans is…
The present paper deals with water quality modification during its stagnation in copper distribution pipes caused by electrochemical corrosion processes. Copper is chosen as plumbing material because of its wide use in drinking water distribution systems all around the world, and because of its recognized toxicity at…
Recent experimental data have indicated that magnetic vortices can be pinned to an impurity at the surface of a nanodisk. Unpinned vortices exhibit a gyrotropic precession frequency that is approximately proportional to the aspect ratio of the disk, $L/R$, where $L$ and $R$ are the disk thickness and radius, respectiv…
We investigate a strongly anisotropically strained $M$-plane GaN film by photoluminescence spectroscopy. The spectra are dominated by the lowest-energy free-exciton transition, but the second lowest one is also detectable even at low temperatures. Rotating the linear polarization of the excitation results in a systema…
Maisiagala RADON type radioactive waste storage facility was commissioned in 1963 in a marshy, ecologically sensitive locality, where soluble radionuclides easily can penetrate and migrate with groundwater. To assure the requirements of radiation safety, the analysis of radionuclide leakage from the radioactive waste…
Current-induced spin-transfer torques (STTs) have been studied in Fe , Co and Ni domain walls (DWs) by the method based on the first-principles noncollinear calculations of scattering wavefunctions expanded in the tight-binding linearized muffin-tin orbital (TB-LMTO) basis. The results show that the out-of-plane compo…
We report a sub-wavelength transmission surface grating (TSG) enhanced longwave infrared (LWIR) quantum dot photodetector. Broadband photocurrent enhancement covering the wavelength range from 4 μm to 11 μm is observed. A 4.6 times (4.6×) photocurrent enhancement is obtained at the photodetection wavelength of 8.7 μm.…
We present a theoretical investigation on the phase stability, site preference and lattice constants of Fe 23-x T x B 6( T = Cr , Mn , Ni , C ), Fe 23 C 6 and Fe 23 CB 6. The calculated results show that in Fe 23-x T x B 6 the Cr , Mn or Ni atoms prefer 4a sites. Fe 23 CB 6 may form with Cr 23 C 6 prototype structure,…
ZIF-8 with and without Pt loadings (0·4 and 2·1 wt.%) were prepared at different calcination temperatures (300 and 400°C). The characterization from Brunauer–Emmett–Teller surface measurement and powder X-ray diffraction reveals that calcination temperatures and Pt loadings have a significant effect on the porosity an…
The Escherichia coli cyclic AMP receptor protein (CRP) is a well known transcription activator protein. In this study, CRP was overexpressed, purified and cocrystallized with cAMP and a 38 bp full-length double-stranded DNA fragment. The full-length segment differed from the half-site fragments used in previous crysta…
We calculate the binding energies of the In4d and Ga3d electrons in wurtzite InxGa1−xN and InxAl1−xN alloys within the quasiparticle approach based on hybrid-functional starting points and the GW approximation. The alloys are described using a cluster approach with 256 configurations arranged in 22 cluster classes. Av…
The spectroscopic behavior of octa-t-butyltetra-2,3-triptycenotetraazaporphyrin and some of its metal complexes ( Cu2+, Zn2+and Co2+) were examined. UV-visible and electron paramagnetic resonance spectroscopy indicate that these phthalocyanine derivatives form cofacial dimers in pentane solution. Modeling suggests tha…
Zn/Zn2SiO4 core–shell nanocables are convenient to grow and have ability to carry ultraviolet (UV) information, which makes them a promising structure in the future application, the nano-waveguide amplifier. In this study, the propagation and enhancement characteristics of surface plasmon polaritons in metal–dielectri…
In this paper, the effect of polyols on thermal stability of lipase was investigated. Lipase, with or without polyols was heated at 75°C for different periods of time. Half-life (t1/2, min) of lipase at 75°C was prolonged from 8.74 to 12.62, 11.66, 9.45, and 8.95 with the addition of d-sorbierite, d-fructose, mannite,…
AlsR from Bacillus subtilis, a member of the LysR-type transcriptional regulator (LTTR) family, regulates the transcription of the alsSD operon encoding enzymes involved in acetoin biosynthesis. LTTRs represent the largest known family of transcriptional regulators in bacteria. In this study, AlsR82-302S100A, represen…
We report a thin nanostructured dielectric optical coating with a nearly ideal polarization insensitive reflectance at a wavelength of 3.46 μm. A genetic algorithm was used to optimize the doubly periodic amorphous silicon subwavelength nanostructure to satisfy a metamaterial-enabled reflecting condition at this reson…
Analysis of the two-dimensional (2D) distribution of excited Ar atoms has been made to synthesize better anode materials for lithium-ion batteries. The 2D visualization of excitation temperatures was based on the “two-line” method, which are important to diagnose the plasmas used for the preparation of carbonaceous ma…