Materials Literature
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Carbon nanotube (CNT) bundle is a promising candidate for future on-chip interconnects and electro-thermal applications due to its superior electrical and thermal properties. A realistic CNT bundle is a mixture of single-wall/multi-wall CNTs due to the nature of bottom-up fabrication process. In order to utilize CNT b…
The poorly known AgCd2GaS4 single-crystal compounds that crystallize in a rhombic structure (space group Pmn21) are studied. Deviations from the stoichiometric composition of the samples and random occupation of the cation sublattice sites by Ag and Ga ions result in violation of long-range order in the atomic arrange…
The solder joint reliability of IGBT chip surface interconnection with a lead-frame structure is described in the power cycling (P/C) capability which is greatly improved due to a chip surface cooling effect in comparison with aluminum wire interconnection. The lead-frame is joined on a Ni and Au plated chip surface w…
A simplified apparatus is described that measures the damping of a suspended measuring device. The movement of the device (bob) is damped by the properties of the air-water surface adsorbed material. Its value lies in describing the surface chemomechanical properties of ingredients and excipients used in food, nutrace…
We have experimentally studied the S -effect dynamics in a dual-frequency nematic liquid crystal (NLC) cell. It is demonstrated that the optical transmission rise and decay times depend on the mode of control over the NLC director orientation in an applied electric field, including the rectangular (square-wave) dc vol…
Abstract We studied Tb‐Fe‐Co giant magnetostrictive thin films and researched sputtering conditions to improve their magnetostrictive properties and investigated the possibility of their practical use. The sputtering Ar gas pressure influenced their inner stress and played a very important role for the determination o…
In this paper consistent bounds of the wave propagation properties concerning a Single Wall Carbon NanoTube (SWCNT) modeled as a Transmission Line are assessed. The monotonic inclusion property of the Interval Analysis leads to guaranteed limits for the given characteristics when the model parameters are uncertain. Th…
The chelate and molecular complexes of 2-(2-benzazolyl, perimidyl)-indandiones-1,3 were synthesized for the first time. The structures of the ligands (tautomeric forms) and complex compounds were determined from the X-ray diffraction, 1 H, 13 C NMR, and IR data and the quantum-chemical calculations (RHF SCF in 6-31 G*…
Quantification of phyllosilicates in soils often depends on a combination of methods, including x‐ray diffraction (XRD), cation exchange and fixation capacities, and microscopy. We examined a Rb fixation method to quantify vermiculite content in California soils derived from granitic and nongranitic alluvium. Whole so…
In recent years, a variety of models based on phonon Boltzmann Transport (BTE) has been developed to model submicron heat conduction. A recent BTE model, called the full-scattering model, was developed incorporating direct calculation of three-phonon scattering terms. Though this model accurately represents resistive…
An equation of state of the form F ( p , ρ, ε ) suitable for the description of flow problems in biological materials is examined using two approaches. First, the effects of irreversible heating of water by shock compression on the elevated pressure and internal energy are discussed using thermodynamic theory. It is r…
The energy spectrum of low-frequency vibrational modes in amorphous polyisobutylene doped with chromophore tetra-tert -butylterrylene molecules has been measured. The technique for measuring the spectra of vibrational modes in solid amorphous media by single-molecule spectroscopy is described. The measured spectrum is…
Abstract The liquid crystal structure in the Zenithal Bistable Display contains defect loops that stabilise the two states. Three‐dimensional modeling of the Zenithal Bistable Display has been performed using a realistic representation of the grating surface profile. Stabilization of the defects loops provided by “sli…
A TiO2–ZrO2 film with laterally graded stoichiometry has been prepared by metal-organic chemical vapor deposition in ultrahigh vacuum. The film was characterized in situ using synchrotron radiation photoelectron spectroscopy (PES) and x-ray absorption spectroscopy. PES depth profiling clearly shows that Ti ions segreg…
We study the giant magnetoresistance of nanogranular magnets in the presence of an external magnetic field and finite temperature. We show that the magnetization of arrays of nanogranular magnets has hysteretic behaviour at low temperatures leading to a double peak in the magnetoresistance which coalesces at high temp…
The corrosion and protection characteristics of phosphate coatings formed in a phosphating solution containing mainly ZnO, H3PO4 and NaF, using Y2O3 as an additive, were investigated through SEM, polarisation curves and EIS diagrams. The results show that the corrosion protection of phosphate coatings has been improve…
An efficient synthesis of lithocholic amides and amide-linked dimers under mild conditions is described. New o-, m- and p-phenylenediamine-derived dimers of lithocholic acid were synthesised by the activation of the carboxyl group of the bile acid as a mixed anhydride resulting from the reaction of the acid with ethyl…
Thin and thick silicon oxide films are grown by thermal oxidation of silicon in dry oxygen or by LPCVD from a mixture of monosilane with oxygen or nitrous oxide. Depth profiles of refractive index are determined in these films by monochromatic ellipsometry, with the measurements interpreted by solving an inverse probl…
The roentgenoluminescence spectra, temperature-dependent activator luminescence, optically stimulated luminescence, and the effect of IR irradiation on the yield and spectral composition of the low-temperature roentgenoluminescence and thermoluminescence curves of the Y3Al5O12:Ce3+ scintillator have been studied in th…
133 Objectives: Develop 18F PET ligands for amyloid plaques in Alzheimer’s disease (AD). Methods: We have screened more than 200 fluorinated compounds to find an optimal 18F ligand for PET imaging of amyloid plaques. First results of an exploratory clinical trial with the tracer 18F-AV-1 (now known as BA94-9172) were…