Materials Literature
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Magnetoresistivity and filamentary superconductivity in nickel-doped BaFe2As2* , Zhang, Wei, Dai, Yao-Min, Xu, Bing, Yang, Run, Liu, Jin-Yun, Sui, Qiang-Tao, Luo, Hui-Qian, Zhang, Rui, Lu, Xing-Ye, Yang, Hao, Qiu, Xiang-Gang
Icosahedrons in supercooled liquids and glasses are considered to be of significance for the glass formation in alloy systems. Starting from the similarity of the local structure of quasicrystals to the icosahedrons in metallic glasses, a scheme is put forward to prepare metallic glasses based on a well-known quasicry…
Epoxy resin (EP) modified polyurethane prepolymer (PUP) was prepared by synthesizing prepolymer method, and then EP/PU interpenetrating polymer networks (IPN) composites was produced with better adhesive properties as the foam expands further. The effects of the process on graft reaction and spatial structure of EP/PU…
A metal–elastomer-foam composite that can be formed in three dimensions is presented by R. F. Shepherd and co-workers on page 2801. The composite varies dramatically in mechanical properties—from rubbery to stiff—enabling shape change. It also stores shape memory, self-heals, and welds into monolithic structures from…
This work describes preparation process of free-standing alumina membranes used in sensor devices for separation or purification (increased selectivity, and sensitivity) purposes. Nanoporous alumina membranes were prepared using anodic oxidation of aluminium foil in two types of acidic electrolytes and characterized u…
CaSO4·0.5H2O whiskers were successfully synthesized by hydrothermal process, in which phosphogypsum (PG) was employed as precursors. The effect of the hexadecyltrimethylammonium bromide (CTAB) on the formation of phosphogypsum-based CaSO4·0.5H2O whiskers was investigated in details. Results indicated that the average…
The role of temperature of metakaolin/Portland cement binary system was studied by isothermal calorimetry. Sample with 50 % of metakaolin replacement were monitored at 30 °C, 40 °C, 50 °C and 60 °C. Structural and chemical characterization of hardened pastes was obtained by scanning electron and Raman microscopy. Pape…
The colloidal stability of nanoparticles can be influenced by several parameters such as temperature, ionic strength, and the presence of proteins. On page 1723, M. Karg, W. J. Parak and co-workers demonstrate core-shell nanoparticles coated with a temperature sensitive polymer. The size of the nanoparticles decreases…
In this paper, we employed both molecular statics and molecular dynamics simulation methods to investigate the role of vacancies in the formation and phase transition of Cu-rich precipitates in α-iron. The results indicated that vacancies promoted the diffusion of Cu atoms to form Cu-rich precipitates. After Cu-rich p…
The reversible assembly of single-stranded DNA aptamers on redox-active nanoceria particles, as presented by S. Andreescu and team on page 822, can be induced or resolved in response to a molecular target. Application of this mechanism for the design of a biomolecular aptaswitch for detection of ochratoxin A is demons…
This report presents recent advances in the design and fabrication of a tunable Fabry-Pérot interferometer (FPI) with subwavelength grating (SWG) reflectors, as well as measurement results and applications. The FPI is designed as wavelength selecting element for highly miniaturized mid-wave infrared spectrometers. The…
We prove that the bound state energies of the two-dimensional massive Dirac operator with dipole type potentials accumulate with exponential rate at the band edge. In fact we prove a corresponding formula of De Martino et al. [Phys. Rev. Lett. 112(18), 186603 (2014)].
Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan E-mail : akitsu@rs.kagu.tus.ac.jp Manuscript received online 15 March 2016, accepted 10 May 2016 DSSC (Dye sensitized solar cell) has been researched by many laboratories and dye is main materia…
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Recently, Wireless Sensor Networks (WSNs) have been widespread utilized in automation. The power supply of WSNs has significant influences on their performance. This paper presents a novel power management circuit for WSNs. The proposed circuit provides an interminable energy source for wireless sensor nodes through e…
This paper presents an iterative calculation method which enables the dimensioning of indoor air clearances for High Voltage Direct Current (HVDC) converter stations for the purpose of insulation co-ordination based on simulated or calculated impulse (withstand) voltages. For this aim mainly normative procedures menti…
Tribological materials based on molybdenum disulfide nanoparticles localized on the surface of ultradispersed polytetrafluoroethylene were prepared. The composition and properties of the new composite materials were studied. Introduction of ultradispersed additives based on polytetrafluoroethylene with MoS2 and on pol…
We propose a novel concept for highly-directive low-profile antennas, based on a single localized source embedded in a cavity, covered by an omega-type bianistoropic metasurface (BMS). We show that such metasurfaces, which include subwavelength particles with electric and magnetic polarizabilities, and magnetoelectric…
The new ultra-low loss build-up film has been developed by the combination of the matrix layer, which has the semi-IPN structure, and the primer layer. The matrix material was designed and prepared by the original polymer blend modification technology with co-crosslinking reaction of rigid thermosetting resin and the…
A The emergence of carbon nanoparticles (CNPs) has received greater potential in biological labeling, bioimaging and other different optoelectronic device applications. Preparation of CNPs using Pongamia pinnata shoots in the presence of castrol oil is reported in the present study. The structural and optical properti…