Materials Literature
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The magnetic Freedericksz transition was studied in the liquid crystal 4-(trans-4’-n-hexylcyclohexyl)-isothiocyanatobenzene (6CHBT) doped with spherical magnetite nanoparticles of different size (4.2 nm, 11.4 nm, 31.4 nm and 112.7 nm). The volume concentration of magnetic particles in prepared ferronematics was ϕ=2×10…
Tokai-1 is the oldest and historical commercial Magnox reactor in Japan, which had started commercial operation in 1966. The unit had helped introduction and establishment of the construction and operation technologies regarding nuclear power plant at early stage in Japan by its construction and operating experiences.…
Incorporation of inorganic nanoparticles can significantly affect the properties of the polymer matrix. The properties of polymer nanocomposites depend on the type of incorporated nanoparticles, their size and shape, their concentration, and interactions with the polymer matrix. Homogeneity of polymer nanocomposites i…
A new technique to locate the partial discharge (PD) in the transformer is presented in this article, which is based on the extended Multiple Signal Classification Method (MUSIC). The ultrasonic signal of PD is measured directly by the 6 × 6 ultrasonic phased array sensor and the array signal model is formed. The sign…
Several metallic components of pressurized water reactors (PWR) used in nuclear power plants are exposed to the combined degradation by friction and corrosion (tribocorrosion). In PWR, corrosion arises from the water pressurized at 150 bars and maintained at 300°C and results in the build up of a micrometer thick surf…
Abstract Hot‐work tool steels represent a group of steels which are used for metal forming operations at elevated temperatures, e. g. die casting, extrusion molding and drop forging. During application such working tools are exposed for a short time to both high temperatures and mechanical stresses. Short‐term creep t…
Dado el actual potencial de las aplicaciones de la nanotecnologia en la industria alimentaria, este informe hace referencia al uso de los nanomateriales producidos de forma intencionada en el laboratorio o a nivel industrial y denominados manufacturados (engineered nanomaterials, ENM), que se introduciran deliberadame…
In this work, the crack pattern obtained in accelerated corrosion tests is compared to the one obtained in numerical simulations for reinforced steel concrete samples. In the simulations, an expansive joint element is used to simulate the oxide layer behaviour together with finite elements with embedded adaptable cohe…
High-current pulsed electron beam (HCPEB) technique is employed to irradiate the samples of polycrystalline pure nickel. The microstructures of the irradiated surface layers are investigated by using transmission electron microscopy (TEM). After HCPEB irradiation, very high value of residual stress is induced in the i…
This article appeared in Homeland Security Affairs (January 2010), v.6 no.1
The electromagnetic tunneling properties of the sandwich structure with single negative material/positive index material (single negative material)/ single negative material are experimentally investigated based on the theoretical analysis. The tunneling properties come from the resonance coupling between the incident…
Negative permittivity can be realized from the periodic unit cells of the metallic bar structure, and the effects of the length and the width of the metallic bar on negative permittivity is discussed. Through arraying two unit cells along the direction of the wave vector k , the negative permeability can be achieved f…
Monolithic AlN，NbN films and AlN/NbN multilayers with different modulation periods were prepared by reactive magnetic sputtering. The films were characterized by X-ray diffraction, X-ray reflectivity and high-resolution transmission electron microscopy. The results showed that the crystal structure of monolithic AlN a…
The Leather Working Group (LWG) has achieved considerable improvements in tannery environmental performance through its Audit Protocol. Version 5 of the Protocol will be valid from October 2010. The Audit aims to promote sustainable and appropriate environmental business practices in the leather industry which is very…
Properties of unintentionally-doped GaN re-grown on molecular beam epitaxy grown AlN/Sapphire templates by metal organic vapor phase epitaxy (MOVPE) are studied in this article. X-ray diffraction (XRD), transmission electron microscope (TEM), and atomic force microscope are used to investigate the influence of the cry…
Light management is of utmost importance for thin film silicon solar cells. For nip cells, light management can be provided by textured back reflectors. In this paper, we demonstrate the fabrication of textured back contact foil on an industry compatible scale. A UV-curing lacquer on a stretch of 80 m of 30 cm wide st…
The pH sensing capacitors with stacked oxide layers prepared on compound semiconductor GaAs substrate were fabricated and until recently had been reported on seldom. In this work, the proposed GaAs-based stack layer capacitors with a so-called electrolyte insulator semiconductor (EIS) structure are demonstrated and ar…
Hardly any fatigue breaks of reinforcing bars in bridges have been reported so far.Presumably, this is due to the fact that fatigue breaks are not actively searched on the one hand and damages are attributed to other phenomena (e.g.corrosion) on the other.The magnetic flux leakage (MFL) method as a non-destructive tes…
Ni-doped Pd exhibits a paramagnetic to ferromagnetic quantum phase transition at x c ≈ 2.5%. We report the magnetic field dependence of the magnetization of Pd 1− x Ni x for x = 2.59% at various temperatures. The nonlinear magnetization is well described by a conventional mean-field behavior at high temperatures and h…
The performance was compared on Syngas Completely Methanation at atmospheric pressure on fluidized and fixed bed reactors. From space-time yield of CH4, coke content and hot spots of bed temperature, fluidized bed technology was demonstrated to be more applicable to Syngas Completely Methanation. Characterization resu…