Materials Literature
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In this paper, a fluence-dependent antireflection performance is presented from ion-beam fabricated nanofaceted-Si surfaces. It is also demonstrated that these nanofacets are capable of producing room temperature ultra-violet and blue photoluminescence which can be attributed to inter-band transitions of the localized…
This paper provides a general framework for electromagnetic (EM) modeling, sensitivity analysis, computation, and measurements regarding the wave propagation characteristics of high-voltage direct-current (HVDC) power cables. The modeling is motivated by the potential use with transient analysis, partial-discharge mea…
This study proposes a slim planar apparatus for converting nonpolarized light from a light-emitting diode (LED) into an ultra-collimated linearly polarized beam uniformly emitted from its top surface. The apparatus was designed based on a folded-bilayer configuration comprising a light-mixing collimation element, pola…
Titania nanoparticles suspended in benzyl alcohol (BzOH) were generated by nonhydrolytic sol–gel process starting from titanium tetrachloride. The obtained suspensions were mixed with 3,4‐epoxycyclohexylmethyl‐3,4‐epoxycyclohexanecarboxylate epoxy resin, and the formulations were cured in the presence of ytterbium(III…
The aim of the present work was to develop simple modification technique for polyurethanes (PUs) intended for use in blood-contacting implants (vascular grafts, heart prosthesis, ventricular assist devices). PU surface was modified with soybean-derived phosphatidylcholine (PC) via one-step dip coating technique. In or…
We report inelastic light scattering measurements of lattice dynamics related to the incommensurate orbital order in ${\mathrm{CaMn}}_{7}{\mathrm{O}}_{12}$. Below the ordering temperature ${T}_{\mathrm{o}}\ensuremath{\approx}250\phantom{\rule{0.28em}{0ex}}\mathrm{K}$, we observe extra phonon peaks as a result of Brill…
Egg envelopes of vertebrates are composed of a family of proteins called zona pellucida (ZP) proteins, which are distinguished by the presence of a common structural polymerizing motif, known as ZP domain. Teleostean fish chorion is a fibrous structure, consisting of protein members of the ZPB/ZP1 and the ZPC/ZP3 fami…
Ferromagnetic insulating behavior has recently been demonstrated in cobalt-substituted ${\mathrm{SrTiO}}_{3}$ at room temperature [Posadas et al., Phys. Rev. B 87, 144422 (2013)]. Experimentally it was found that a well-defined hysteresis loop only occurs at high Co concentrations of 30%--40%. X-ray photoelectron spec…
A heptanuclear double-bowl-like cluster [Co7(mmp)6(OH)6]2·(ClO4)2·12H2O (1·12H2O, Hmmp is 2-methoxy-6-methyliminomethyl-phenol) has been synthesized through the microwave-assisted reaction of Co(ClO4)2·6H2O with 2-hydroxy-3-methoxy-benzaldehyde (Hhmb) and methylamine in mixed solvent (acetonitrile : distilled water =…
CdSe, in the form of quantum dots, is a semiconductor material extensively used for photovoltaic applications. We have performed a comprehensive density functional theory investigation of the geometrical and electronic properties of CdSe bulk crystals (for both the wurtzite and zinc blende phases) as well as their wur…
Rapeseed oilcake or press-cake is generated as bulk waste during oil extraction from oilseeds. Owing to its high protein content, further processing of oilcakes into vegetable protein generates large quantities of fibrous residue (“oil-and-protein” spent meal) as by-product, which currently has very limited practical…
In this work, we theoretically predicted an anisotropic magnetocaloric effect of the same order of magnitude of the usual magnetocaloric effect for antiferromagnetic systems. The anisotropic magnetic properties come from the anti-parallel alignment of the magnetic sites and can be optimized depending on the magnetic f…
Thermal property of clothing has significant impact on thermal comfort of the wearers. In an extreme working condition body releases a lot of heat and sweat, in order to keep the body dry and at normal temperature these heat and sweat should be released in the environment. The thermal comfort of the fabrics mainly dep…
In this study, various forms of design, simulation and measurements of a new type of metamaterial absorber (MA) is investigated at X band. In the first step, an ultra‐thin absorber is considered with absorptivity of 99% at frequency 9.88 GHz. The thickness of the structure is only 1/120 of the radiation wavelength. In…
Disorder scattering and spin-orbit coupling are together responsible for the diffusion and relaxation of spin density in time-reversal invariant systems. We study spin relaxation and diffusion in a two-dimensional electron gas with Rashba spin-orbit coupling and spin-independent disorder, focusing on the role of Rashb…
Liquid crystals have widespread applications in physics and technology, most notably as optical devices. A new study shows how three phases of liquid crystals are closely related cousins by considering their topological defects and ground states.
Abstract As drug delivery systems, stimuli‐responsive polymer micelles hold great potential in cancer chemotherapeutics to improve therapeutic efficiency and eliminate organism adverse effects. Here, pH ‐sensitive polymeric micelles based on dextran‐ g ‐benzimidazole were designed and used for intracellular anticancer…
Abstract In this paper, pure ceria, ceria doped with transition metal ions (Co 2+ , Ni 2+ ), and Co/Ni binary‐doped ceria mesoporous notched hollow nanospheres were prepared from a one‐step solvothermal synthesis. By introducing metal ions, the composition can be freely manipulated. The morphologies and crystalline st…
The Landauer-Datta-Lundstrom electron transport model is briefly summarized. If a band structure is given, the number of conduction modes can be evaluated and if a model for a mean-free-path for backscattering can be established, then the near-equilibrium thermoelectric transport coefficients can be calculated using t…
We propose and analyze the concept of the vertical hot-electron terahertz (THz) graphene-layer detectors (GLDs) based on the double-GL and multiple-GL structures with the barrier layers made of materials with a moderate conduction band off-set (such as tungsten disulfide and related materials). The operation of these…