Materials Literature
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A broadband hexagonal-shaped metamaterials (MTMs)-based zeroth-order resonant (ZOR) antenna was designed and fabricated. The hexagonal shape of a top patch on a mushroom structure makes not only direct-current paths between the two ends of the patch but also round-current paths along the outside of the patch, thereby…
The peculiarities of the structure of the heat-affected zone (HAZ) of high-strength chromiumnickel-molybdenum shipbuilding steel before and after high-temperature tempering are examined. It is demonstrated that the type and morphology of structural components as well as the carbon redistribution, which depend on the c…
The 0.99Bi0.5(Na0.78K0.22)0.5TiO3?0.01LaAlO3, 0.01LaMnO3 or 0.01LaFeO3 (0.99BNKT?0.01LA,0.01LM or 0.01LF) ceramics were prepared by a conventional mixed mothod. The structure andmorphology of the lead free ceramics were characterized by XRD (X-ray diffraction) and FE-SEM (fieldemission scanning electron microscopy). X…
Malignant ependymoma is one of the most frequent CNS-tumors in childhood characterized by a poor outcome owing to low effects of chemotherapy accompanied by high rates of recurrence. However, the underlying mechanisms are still poorly understood. Aim of this study is to investigate the role of ABC-transporters - a wel…
越前市吉野瀬川北側の鬼ヶ岳周辺部－大虫地域における地質を調査した．本地域の層序は，北\n\t側では下位から，古期花崗岩類（晶質石灰岩塊を伴う）―足羽層―濃飛流紋岩類―新期花崗岩類\n\t―西谷流紋岩類―中新世火砕岩類，そして南側には断層関係で南条山地中生層が分布し，それら\n\tを被覆して段丘堆積物が分布する．越前市大虫町や広瀬町に散在する石灰岩塊は，珪質岩と互層\n\tし，古期花崗岩類によって接触変成を受けている．このような石灰岩の特徴は，福井市西天田町\n\tに分布する石炭紀のそれに似ており，その時代は同様に石炭紀であると推測される．また，濃飛\n\t流紋岩類は，本地域では鬼ヶ岳を中心に分布し，火山礫凝灰岩と溶結凝灰岩からなり…
Cf/SiC composite are widely used in aerospace, chemical industry, traffic, and many other fields because of good mechanical properties, heat resistance, thermal shock resistance and abrasion resistance, corrosion resistance, etc. But its oxidation resistance is poor in the application of high temperature environment.…
This paper focuses on the presentation of results which were obtained as a part of the project FR-TI 3/742: “System of Lightweight Materials for Finishing of Buildings with Waste Raw Materials”. Attention was paid to the light weighting of polymermodified mortars applicable as adhesives, screeds and repair mortars. In…
Brain tumor heterogeneity poses significant challenges to their study and moreover to their treatment. A tool that could characterize a tumor specimen based on its cellular composition and response to treatment could assist the treating neuro-oncologist in determining the optimal treatment. We have developed a chip to…
The synthesis of polyaniline (PANI) doped with anionic spherical polyelectrolyte brushes (ASPB) (PANI/ASPB nanocomposite) by means of in situ chemical oxidative polymerization were presented. The PANI/ASPB nanocomposite was characterized by Fourier trans-form infrared spectroscopy (FTIR), Scanning electron microscopy…
El presente proyecto final de carrera titulado “Analisis de la tasa de dosis en las piscinas de combustible nuclear gastado en situaciones accidentales de perdida de inventario de agua” se enmarca en el ambito de la seguridad nuclear y la proteccion radiologica, y nace a raiz del accidente de la central nuclear japone…
To synthesize Sn nanoparticles (NPs) less than 30 nm in diameter, a modified polyol process was conducted at room temperature using a reducing agent, and the effects of different pH values of the initial solutions on the morphology and size of the synthesized Sn NPs were analyzed. tin(II) 2-ethylhexanoate, diethylene…
The operation of drilling well leads to casing wear to some degree in cased well. The reduced strength of worn casing threats to the safety of well test and completion. In order to calculate casing wear depth and prevent the casing wear, the wear efficiency and friction coefficient is measured in the different wear ti…
Based on the principal strain driven fiber orientation evolution mechanism, the fiber orientation variation factor V, which is a function of the principal strains, is proposed to quantitatively characterize the variation of fiber orientation angles in the extruded Csf/Mg composites. The FE analyses are implemented to…
Layered rare-earth hydroxide nanosheets (3-8 nm thick) of Y2(OH)5NO3·nH2O (NO3--LYH) were successfully synthesized in one step via chemical precipitation at ~4 °C and pH ~8, using yttrium nitrate and ammonium hydroxide as reagents. The interlayer NO3- was found to be free ions and can be completely replaced with SO42-…
A. V. Sumant and colleagues use graphene as an effective solid lubricant for rubbing steel surfaces. On page 6640 the team demonstrates that just one atom thick graphene layer dramatically suppresses both friction and wear of steel for thousands of sliding passes. This extraordinary wear resistance of graphene is real…
Synthesis of 5,15-bis(4′-methoxyphenyl)-2,8,12,18-tetramethyl-3,7,10,13,17,20-hexaethylporphyrin and 5,15-bis(4′-methoxyphenyl)-10,20-diphenyl-2,8,12,18-tetramethyl-3,7,13,17-tetraethylporphyrin is reported. Spectrophotometric study of acidic and complexation properties of these compounds in the DBU-CH 3 CN, CH 3 CN-Z…
The phase dynamics of two parallel connected stacks of intrinsic Josephson junctions (JJs) in high temperature superconductors is numerically investigated. The calculations are based on the system of nonlinear differential equations obtained within the CCJJ + DC model, which allows one to determine the general current…
The structure of deuterides based on V 0.9 Cr 0.1 and V 0.5 Cr 0.5 alloys has been investigated by neutron diffraction at room and low (77 K) temperatures. It is found that V 0.9 Cr 0.1 D 2.0 deuteride has a CaF 2 ( Fm 3 m ) crystal structure, which corresponds to vanadium dihydride. V 0.5 Cr 0.5 D 0.7 deuteride has a…
A comparison has been performed between the Landau-Dzyaloshinskii-Astrov magnetoelectric effects and the electromagnetic effects caused by the electromagnetic Faraday induction and Maxwell displacement currents. The requirement for the spontaneous violation of symmetry relative to space inversion and time reversion is…
BACKGROUND: Chemotherapy for high grade glioma (HGG) is limited by the blood brain barrier. Convection enhanced delivery (CED) improves chemotherapy delivery by utilizing fluid convection obviating the challenges of crossing the BBB while minimizing systemic toxicity. CED of nanoliposomal irinotecan (MM-398) has been…