Materials Literature
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Interstitially injected immuno-poly(ethyleneglycol)-liposomes (immuno-PEG-liposomes) can penetrate the thin-walled and fenestrated lymphatic microvessels and are subsequently conveyed to the regional lymph nodes. The exposed Fc region of coupled antibodies on the liposome surface facilitates vesicular recognition and…
A linear model of an ultracapacitor cell has been determined using time-domain identification techniques. A third-order transfer function consistent in form with an RC ladder circuit model is assumed. The transfer function coefficients are identified from experimental data consisting of time-varying current excitation…
Extended abstract of a paper presented at Microscopy and Microanalysis 2008 in Albuquerque, New Mexico, USA, August 3 – August 7, 2008
Composite nuclear fuel consisting of uranium carbide (UC) fuel microspheres dispersed in an inert matrix is one of the fuel forms being actively considered for use in gas-cooled fast reactors (GFRs). High-density UC electrodes were required for the production of fuel microspheres by the rotating electrode method as an…
Copper nanowires were patterned with e-beam lithography and fabricated with an e-beam evaporated Cu film. Electrical properties, including resistivity and temperature coefficient of resistance, were characterized for Cu nanowires with a width range of 90 nm to 330 nm. It was experimentally found that the surface and s…
A numerical approach to predict the yarn interlacing frequency of triangular interlacing nozzle is discussed in this paper. The inviscid, compressible flow field inside air nozzles is computed through solving the steady continuity, momentum and energy equations with a finite volume method. A mathematical model for the…
Based on the generalized Huygens-Fresnel diffraction integral theory and the stationary-phase method, we analyze the influence on diffraction-free beam patterns of an elliptical manufacture error in an axicon. The numerical simulation is compared with the beam patterns photographed by using a CCD camera. Theoretical s…
Solos concrecionários (Plintossolo Pétrico concrecionário) nas Regiões Central e Norte do Brasil são muito comuns, ocorrendo em áreas baixas e nas bordas das chapadas, constituindo geralmente solos distróficos,pobres em nutrientes. A ocorrência de solo concrecionário eutrófico no município de Ouro Verde de Goiás, em á…
Monocytes adhere and transmigrate through a blood-brain barrier (BBB) during a normal immune patrol and after pathological events. It is well established that the transmigration of monocytes through the BBB is stimulated by soluble amyloidbeta. The aim of the present study was to explore if aggregated amyloidbeta adde…
Conducting β-Ga2O3 single crystals doped with Er3+ were grown using the floating zone method. Electron paramagnetic resonance (EPR) showed that conduction electrons can coexist with the Er3+ dopant. Optical and EPR characterizations of samples nominally doped with 0.5% and 1.5% were performed at low temperature showin…
We have used the generalized gradient approximation (GGA) to density functional theory to study the vibrational and thermal properties of guest-free Si136 and Ge136 clathrates. In order to study the effects of supercell size on our results, we have performed both 34 and 136 atom supercell calculations for each materia…
The equilibrium of meso-tetrakis(4-N-methylpyridiniumyl)porphyrin (TMPyP) in aqueous solution in the presence of surfactants was studied by optical spectroscopic techniques and SAXS (small angle X-ray scattering). Anionic SDS (sodium dodecyl sulfate), zwitterionic HPS (N-hexadecyl-N,N-dimethyl-3-ammonio-1-propanesulfo…
We consider a nematic liquid crystal constrained by two coaxial cylinders under the action of low-frequency axial or radial electric fields. Assuming an initially hybrid configuration, we find the equilibrium texture of the nematic subjected to weak anchoring boundary conditions on both cylindrical surfaces. We analyz…
A blend of Ethylene Propylene Diene Monomer (EPDM) rubber reinforced by polypropylene (PP) particles has been processed and its hyperelastic behavior has been characterized under cyclic uni-axial tensile tests. The experimental results show a significant effect of the fraction of polypropylene particles (10%, 25% and…
We investigate Total Ionizing Dose effects on 4 Mbit Phase Change Memories (PCM) arrays. We demonstrate a high robustness of PCM against ionizing radiation. We irradiated PCM with 8-MeV electrons. Only small variations are measured in the cell distributions after irradiation. The primary cause of these variations is t…
A multiscale model is constructed to study interfacial thermal resistance in electronic packaging. The model combines a molecular dynamics simulation for the critical regions within the system with a finite element (FE) method for a continuum description of the remainder of the system. For nonequilibrium simulations,…
Abstract Over several billion pounds of petroleum‐derived polyols are consumed in the U.S. annually in many polyurethane applications, e. g., foams, coatings and adhesives. There is an increasing need and interest to develop alternate polyols based on renewable, resource‐based raw materials that offer reduced price vo…
(Mn, N)-codoped ZnO films have been achieved by oxidative annealing of sputtered Zn2N3:Mn films at different temperatures in flowing O2 ambient. X-ray diffraction measurements and x-ray photoelectron spectroscopy studies indicate that both divalent Mn2+ and trivalent N3− ions are incorporated into ZnO lattice. Ferroma…
Important new applications are possible today in the fields of energy conversion and storage by the application of thin and nanostructured solid films on surfaces. These special films, or multiple films, will be integral parts of the energy systems in the near future for the production of useful thermal and electrical…
Abstract Nano‐structured aluminum oxide powders were prepared by a combustion synthesis method utilizing serine as a new fuel. The product was sonicated to obtain nano powders. A Taguchi L‐4 statistical design of combustion synthesis was utilized to optimize the production of γ ‐alumina powder. The product was charact…