Materials Literature
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Solid-state dye-doped polymers are attractive alternatives to the conventional liquid-dye solutions. In this paper, the third-order nonlinear optical properties of a Pararosanilin dye in 1-Butanol and a dye-doped polymer film were measured by the Z-scan technique using a continuous wave 532-nm diode-pumped Nd:Yag lase…
Abstract A novel biosensor for hydrogen peroxide was prepared by immobilizing horseradish peroxidase (HPR) on newly synthesized dendritic silver/silicon dioxide nanocomposites, which were coated on a glassy carbon electrode. The modified electrode was characterized with XPS, SEM, and electrochemical methods. This bios…
Properties of pharmaceutical drug polymer mixtures like miscibility, stability and drug release are determined by the interactions of active pharmaceutical ingredients (APIs) and excipients (e.g. plasticisers) with functional polymers. Molecular dynamics (MD) simulations (Materials Studio®, COMPASS force field) are us…
Customer loads connected to power distribution network may be broadly categorized as either linear or nonlinear. Nonlinear loads inject harmonics into the power network. Harmonics in a power system are classified as either load harmonics or as supply harmonics depending on their origin. The source impedance also impac…
Fiber-metal laminates (FML) composed of alternating layers of unidirectional fiber-reinforced plastic (FRP) laminae and aluminum-alloy sheets offer some superior mechanical properties, compared with either conventional laminates consisting of only FRP laminae or high-strength monolithic aluminum alloys. The environmen…
Liquid droplets impacting a superhydrophobic surface decorated with micron-scale posts often bounce off the surface. However, by decreasing the impact velocity, droplets may land on the surface in a fakir state, and by increasing it, posts may impale droplets that are then stuck on the surface. We use a two-phase latt…
The synthesis and properties of carbochain polymers with side azole groups containing three and four heteroatoms are considered. The data on the synthesis of vinyl derivatives of oxadi-, tri-, and tetrazoles and their polymerizability are systemized and generalized. The potential of polymer-analogous transformations f…
Three different approaches to the immobilization of proteins at surfaces have been compared. All rely on the creation of surface groups that bind primary amines on lysine residues. Carboxylic acid terminated self-assembled monolayers (SAMs) have been activated using a water soluble carbodiimide to yield an active este…
The heat transfer of the inversely stratified molten corium in the lower vessel, which was experimentally demonstrated in the MASCA project, was analyzed. For the oxide layer, turbulent models of the k-ε and the large eddy simulation were examined through the CEA BALI test analysis, and the Mason-Derbyshire Smagorinsk…
Accurate modeling of a bulk acoustic wave resonator frequency response is limited by the inability of the current 1-D models to simulate certain parasitic modes excited in realistic 3-D structures. A simple technique is proposed to simulate such parasitic modes by employing the 1-D Mason Model of a resonator and a cou…
In the present investigation, we have employed the adsorption of H-H at the bcc site of V (100) with use of an ab initio method. The most stable adsorption configuration has been found on transition metal surface with chemisorption energies. Although similar in type and energy, the adsorption on the V (100) surface sh…
The formation and propagation of light and dark microwave spin-wave envelope solitons in a periodic magnetic film structure have been observed. The periodic structure was manufactured on the basis of the single-crystal film of iron-yttrium garnet and a lattice of copper strips placed on the surface of the film perpend…
The purpose of this tutorial is to give a practical introduction to surface plasmon nanophotonics. Surface plasmon polaritons (SPPs) are introduced as a waveguide mode at a single interface. It is shown how SPPs in nanostructures can both concentrate the local field intensity and shorten the optical wavelength. Locali…
The mechanisms of pressure-driven water infiltration into single walled carbon nanotubes are explored using molecular dynamics simulations. Both quasi-static and dynamic loading conditions are investigated, and the influence of tube size is examined. Under quasi-static loading, the water molecules flow into the tube v…
AC adjustable-speed drives (ASDs) have become the primary choice for most new and retrofit precision motor-control applications with increased system efficiencies and reduced system losses. The significant increase in the use of ASDs brings the need for understanding compatibility issues between them and their electri…
Abstract This paper describes the synthesis and crystal phase behavior of platinum lead nanorods. Both face‐centered cubic (fcc) Pt100−xPbx (x < 50) and hexagonally close‐packed (hcp) Pt50Pb50 nanostructures are synthesized at mild reaction temperatures (180–200 °C). The crystal phase and composition of these PtPb nan…
Bioassay-guided fractionation of EtOH extract of the roots of Scrophularia ningpoensis Hemsl. resulted in the isolation of three new iridoid glycosides, i.e., 6''-O-caffeoylharpagide (1), 6''-O-feruloylharpagide (2), and 6''-O-beta-glucopyranosylharpagoside (3), and five new aromatic glycosides, i.e., 2-(3-hydroxy-4-m…
The technique of some nanosized substances synthesis in arc discharge plasma at atmospheric pressure is considered. The results of synthesis in the arc discharge with different feeding are presented: dc, power current of 50 Hz, ac of 44 kHz and their combinations. Also, the investigation results of influence of an aco…
An analytical and computational study of 360° domain walls in thin uniaxial ferromagnetic films is presented. The existence of stable one-dimensional 360° domain wall solutions both with and without the applied field is demonstrated in a reduced thin film micromagnetic model. The wall energy is found to depend rather…
The phytoplankton samples were collected from the Veeranam lake for a period of one year from March-2005 to February-2006. The physico-chemical parameters of water such as air-temperature, water temperature, pH, salinity, dissolved oxygen, electrical conductivity and total dissolved solids were observed and their rang…