Materials Literature
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We present in this work a study on the magnetic properties of nanocrystals of Mn- or Co-doped ZnO obtained by a proteic sol-gel process. Analysis of these nanocrystals is accomplished using x-ray diffraction (XRD), the Rietveld refinement through using the General Structure Analysis System (GSAS) program, and magnetic…
In this article, we present an experimental procedure to synthesize highly crystalline FeCO3 by hydrothermal decomposition of Fe(III)‐EDTA complex, starting from Ferric Ammonium Sulfate and Na4EDTA main precursors in urea presence. The structure, morphology and composition of the powders were obtained using X‐ray powd…
The effect of surface-wave plasma pre- and post-treatment on immobilization of L-cysteine molecules onto molecules grafted polyurethane (PU) surface was studied using surface-wave plasma treatment. The polyethylene glycol (PEG) molecules are grafted onto PU surface by means of both pre-treatment and post-treatment of…
The results of studies on phytoplankton community have been analyzed from the aspect of associative symbiosis. It has been shown that associative connections between symbionts in the community are determined by the presence of the main partner (host), dominant micropartners capable of substituting for each other, and…
Singlet and triplet potential energy surfaces for the reactions of oxygen atoms ((3)P and (1)D) with CF(3)CN have been studied computationally to evaluate the reaction mechanisms, possible products, and rate constants. On the triplet surface, six kinds of pathway are revealed, namely: direct fluorine abstraction, C-ad…
We propose protein PTB1 : 4W as a good candidate for engineering into a downhill folder. PTB1 : 4W has a probe-dependent thermal unfolding curve and sub-millisecond T-jump relaxation kinetics on more than one time scale. Its refolding rate in denaturant is a non-linear function of denaturant concentration (curved chev…
The multi-material MEMS fabrication process often requires a larger number of masks making it more expensive as compared to single-material MEMS (SMM) technology. By varying the doping level in poly-C, semi-conducting, metallic and insulating (undoped) properties are achieved that are needed for poly-C SMM. However, t…
The phase transformation behavior of polycrystalline shape memory alloys is investigated by a constitutive model under multi-axial stress states of tension and shear. The constitutive model used here was developed by the authors to describe the accommodation mechanism acting on the phase transformation phenomenon. The…
A simple method to optimize the etching uniformity when making a CGH on a thick optical glass substrate is described, which uses a Teflon ring to enclose the substrate during reactive-ion etching (RIE).
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Homopolymers of a bis-trifluorocarbinol substituted norbornene (1) (α,α-bis(trifluoromethyl)bicyclo[2.2.1]hept-5-ene-2-ethanol or HFANB) were produced using a palladium catalyst and hydrogen as a chain transfer agent to control molecular weight. As the hydrogen pressure increased, the molecular weight of poly(1) decre…
CoFeB/MgO/CoFe/MgO/CoFeB double-barrier magnetic-tunnel junctions were fabricated using an ultrahigh vacuum magnetron sputtering system, and their magnetotransport properties were characterized at room temperature. After post-deposition annealing, the polarity of TMR changed from negative to positive with increasing b…
In an ongoing quest to realize lighter vehicles with improved fuel efficiency, deformation characteristics of the material AA 6016 is investigated. In the first part of this study, material behavior of Al‐Mg‐Si sheet alloy is investigated under different process (temperature and strain rate) and loading (uniaxial and…
The progress in the development of heavy gauge X80 linepipe steel on coil at ArcelorMittal was recently rewarded with a 6000 ton commercial order for the production of 21.6mm wall thickness spiral welded pipe. The further product development is concentrating on the improvement of the impact toughness at low temperatur…
In this work, we show that a detailed atomistic model of SiN defects provides a consistent explanation of the program/erase/retention characteristics of both NROM and MANOS charge-trap cells. Our analysis of devices with SiN layers of different stoichiometry is also consistent with original KFM measurements of trapped…
We have prepared nanocomposites containing large amounts of superparamagnetic nanoparticles dispersed in a polymethyl methacrylate matrix. The preparation was divided into three steps. In the first step, maghemite nanoparticles were synthesized using coprecipitation from aqueous solutions, followed by coating with ole…
Von Roll Inova’s innovative new SNCR process is up to the task. This new approach takes the well known Selective non-catalytic reduction process to new heights (lows). By monitoring process conditions very closely and implementing a quick-reacting, highly precise mechanical system for distribution of the reducing agen…
This paper concerns the energy deposition of high-energy(e.g., $\approx 50-500$ MeV) proton and carbon ions andhigh-energy electrons (of $\approx 50$ MeV), in inhomogeneous media. Our goal is to develop a flexiblemodel incorporated with the analytic theory for ions based on bipartition and Fokker-Planck developments.…
The BiScO3–PbTiO3 binary system is known to have a morphotropic phase boundary (MPB) and a higher Curie temperature than Pb(Zr,Ti)O3 and to exhibit excellent dielectric and ferroelectric properties. Perovskite BiScO3–PbTiO3 powders and thin films were synthesized via a chemical process using metal-organic precursor so…
Flexible transparent resistive random access memory (FTReRAM) can be fabricated by sandwiching a wide band gap oxide such as ZnO between transparent electrodes such as tin-doped indium oxide (ITO) on polymer flexible sheets. However, an alternative transparent conducting oxide (TCO) to ITO is desired because of the hi…