Materials Literature
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Growth, atomic structure and O2 partial pressure dependent phase transitions of Ni-O structures and thin NiO films on Pt(111) have been studied using scanning tunnelling microscopy (STM), low-energy electron diffraction (LEED), and Auger electron spectroscopy (AES). In situ STM experiments were performed during film g…
Properties and characteristics of superelastic deformation behavior based on Lüders-Like phase transformation bands in TiNi shape memory alloy (SMA) are presented. Temperature distributions accompanying the stress-induced phase transformations in the SMA are found using the infrared technique and employed for the inve…
We have developed a compact retarding-type Mott spin polarimeter with a large collection angle at the Hiroshima Synchrotron Radiation Center and obtained a reliable value of the effective Sherman function by a self-calibration method. The spin polarization of secondary electrons was evaluated by extrapolation of the l…
This paper reports measurement results of instrumental analyses, permittivity, conduction current, and space charge distribution profiles observed in low-density polyethylene/MgO nanocomposites with various filler contents, done with the intention to clarify the filler-content dependence of dielectric properties. The…
Using regioselective dendritic functionalized cellulose, CdS quantum dot nanoparticles were prepared and their photo-optical properties and morphology as well as the preliminary biocompatibility of the hybrid were investigated.
The properties of a grounded dielectric slab with double negative (DNG) metamaterials are investigated in this paper.Dramatically different dispersion curves of evanescent surface modes (electromagnetic fields exponentially decay both in air and inside the slab) are observed.They are highly dependent on the medium par…
Abstract—Novel isotropic planar and three-dimensional negative refractive index (NRI) metamaterial (MTM) designs consisting of periodically arranged cross structures are developed in the terahertz (THz) frequency regime using group theory. The novel designs not only avoid magnetoelectric coupling but also enable a sim…
The c-axis oriented Zn0.98Al0.02O was prepared by a combination of high magnetic field and gelcasting techniques, and its thermoelectric properties were examined. Optimized gelcasting conditions made it possible to align the particles preferentially along the c-axis within a short exposure time in the high magnetic fi…
Several strains of diatom exhibit a long-term viability in silica gels and demonstrate the ability to dissolve the silica in their surroundings.
A scattering-free, polarization controllable Fresnel zone plate lens is demonstrated using a photo-induced alignment of the dye-doped liquid crystal film. This photo-aligned liquid crystal zone plate provides orthogonal polarization states for odd and even zones. The different focus orders can be separated because of…
Nephrogenic fibrosing dermopathy (NFD) is a newly recognized cutaneous fibrosing disorder. To date the etiology, pathogenesis, and clinical course remains unknown. The majority of cases have been in renal dialysis or renal transplant patients. Only four cases have been reported in which patients had acute renal failur…
Organic-inorganic reactions during thermochemical sulfate reduction (TSR) are the main cause for the destruction of hydrocarbons in deep carbonate sediments. In this paper, thermal simulation experiments on C1—C3 hydrocarbons and solid calcium sulfate were carried out using an autoclave operated at high temperature an…
An anode-supported solid oxide fuel cell ͑SOFC͒ based on 8 mol % yttria-stabilized zirconia ͑8YSZ͒ electrolyte that was deposited via an electron-beam physical vapor deposition ͑EB-PVD͒ technique, was investigated.A NiO-8YSZ plate was used as both an anode substrate and as a substrate for the deposition of 8YSZ.An add…
This review summarizes recent developments in the area of porphyrin chemistry in the direction of biological applications. Novel synthetic methodologies are reviewed for porphyrin synthesis, porphyrin analog synthesis, stable porphyrinogens -- calixpyrroles, expanded porphyrins. Unique biological properties of those c…
15-Membered triolefinic macrocycles form complexes with palladium(0). However, metal nanoparticles are formed instead of discrete complexes if substituents provided with the ability to stabilize nanoparticles are incorporated into the structure of the macrocycle. Ancillary substituents include fluorous and polyoxyethy…
The technologies for fabrication, micromachining and integration of Ni–Mn–Ga thin films are developed in order to create novel microactuators and sensors. These devices simultaneously make use of the electrical, thermoelastic and ferromagnetic properties of the thin films allowing a new level of multifunctionality and…
The paper presents a comparative study in which different kinetic models were applied to describe the reaction kinetics of a mixture of sugar cane straw with 20 and 30% of clay, burned at 800 and 1000°C (SCSCA), and hydrated lime [calcium hydroxide (CH)]. Classical models, such as the Jander, Jander Modified and Zurav…
Poly(epsilon-caprolactone) (PCL) fibers produced by wet spinning from solutions in acetone under lowshear (gravity-flow) conditions resulted in fiber strength of 8 MPa and stiffness of 0.08 Gpa. Cold drawing to an extension of 500% resulted in an increase in fiber strength to 43 MPa and stiffness to 0.3 GPa. The growt…
A novel sol-gel-derived preceramic polymer, namely poly(organosilyl)carbodiimide, was synthesized for fabrication of thermally stable amorphous Si-C-N membranes. The gelation process as well as the viscosity of the poly(organosilyl)carbodiimide was adjusted for spin coating by reacting a mixture of alkyl and dialkyl c…
Abstract—Electromagnetic Scattering problem by multiple metama-terial cylinders are studied. A formulation for coating conducting cylin-ders by metamaterial is presented. The formulation is based on the ex-pansion of electromagnetic fields by Bessel functions in local cylindrical coordinates and then transformation fr…