Materials Literature
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Two kinds of specimens, with the major phase of Sr3Co2Fe24O41 (Sr3Co2Z) and SrCo2Fe16O27 (SrCo2W) hexaferrites respectively, were fabricated through solid-state reaction. The phase composition, magnetic and dielectric properties, magnetodielectric (MD) effect, magnetoelectric (ME) effect and pyroelectric properties we…
The Reactor Cavity Cooling Systems (RCCS) is a passive safety system that will be incorporated in the VTHR design. The system was designed to remove the heat from the reactor cavity and maintain the temperature of structures and concrete walls under desired limits during normal operation (steady-state) and accident sc…
accurate quantized resistance over a 9 T range starting from 10 T on the � = 2 plateau, at a temperature of 1.4 K, in a large Hall bar QHRS made of graphene grown by chemical vapor deposition (CVD) on SiC. The relative discrepancy between the quantized Hall resistances in the graphene sample and in a reference GaAs on…
Current tumor chemotherapy is associated with severe side effects caused by adverse effects of the drugs on healthy tissue. A local delivery of the drug has the advantage of a more controlled biodistribution of the therapeutic agent, which will reduce the side-effects, and offers the potential to use a higher concentr…
Graphitic Carbon Nitride In their Communication on page 7450 ff., A. I. Cooper, M. J. Bojdys, et al. report crystalline thin films of triazine-based graphitic carbon nitride (TGCN). TGCN is structurally similar to graphite but it is a semiconductor, and the thin films display a direct bandgap between 1.6 and 2.0 eV.
Energy band structure of the bilayer graphene superlattices with $δ$-function magnetic barriers and zero average magnetic flux is studied within the four-band continuum model, using the transfer matrix method. The periodic magnetic potential effects on the zero-energy Dirac point of pristine bilayer graphene are exact…
ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionORIGINAL ARTICLEThis notice is a correctionCorrection to "Nonionic Triblock and Star Diblock Copolymer and Oligomeric Surfactant Syntheses of Highly Ordered, Hydrothermally Stable, Mesoporous Silica Structures"Dongyuan Zhao, Qisheng Huo, Jianglin Feng, Bradley F. Chm…
We consider the problem of two point resistance on an $m times n$ cobweb network with a 2r boundary which has never been solved before. Past efforts prior to 2014 researchers just only solved the cases with free boundary or null resistor boundary. This paper gives the general formulae of the resistance between any two…
Understanding anisotropic superconductivity has been one of the major theoretical challenges in the solid state physics. In this paper, we report a comparative study of chiral and non‐chiral p‐wave superconducting states by means of a generalized Hubbard Hamiltonian within the BCS formalism. The single‐electron parame…
This chapter focuses on the latest developments in X-ray photon-in photon-out core level spectroscopy applications for the understanding of heterogeneous catalysis. Catalytic performance is driven by the electronic structure of the valence shell. The 6.1 Introduction ...................................................…
Penelitian yang dilakukan bertujuan untuk memperoleh struktur perovskite fasa tunggal ABO3 dengan A=K, Na, Ba, Ca dan B= Ti, Zr, Nb yang disintesis dengan metode reaksi padat dan menentukan karakteristik listrik yang dimilikinya. Material xK0,5Na0,5NbO3-(1-x)Ba0,5Ca0,5Zr0,5Ti0,5O3 (x=0,2; 0,5; 0,8) disintesis dengan m…
Introduction A nanocomposite is a material in which the matrix contains reinforcement materials having at least one dimension in the nanoscale (<100 nm), wherein the small size offers some level of controllable performance that is expected to be better than in conventional composites. In another words, these nanocompo…
The Wnt signaling pathway plays diverse roles in embryonic development and adult homeostasis, whereas aberrant activation of Wnt signaling may lead to tumorigenesis. In this research, we explored for natural products that inhibit Wnt activity. Activity-guided fractionation of MeOH extract of C. gigantea exudates yield…
The leaves of Markhamia tomentosa (Benth.) K. Schum. Ex Engl. (Bignoniaceae) are used in traditionally in the treatment of skin afflictions, sores, ulcers and inflammation. The aim of the study was to investigate the antiulcer activity of the crude ethanolic extract, determine the active fraction(s) of the extract and…
To understand the factors which affect impact damage on composite structures, particularly the effects of impact position and ribs. In this paper, a finite element model (FEM) of low-velocity impact damage on the composite structure was established via the nonlinear finite element method, combined with the user-define…
Polycrystalline ceramic samples of pure and germanium (Ge4+) doped fresnoite of general formula Ba2TiOSi2−xGexO7 ( x=0.0 and 0.2) have been prepared by solid state reaction technique. The formation of the single phase compound was confirmed by X-ray diffraction and the structural parameters were refined by the Rietvel…
In this work, a full-field finite element simulation of a heterogeneous DC04 steel microstructure identified from two-dimensional (2D) electron backscatter diffraction (EBSD) data is performed under a macroscopic tensile deformation. After discretization procedure by finite elements, the EBSD microstructure is subject…
In SnSe-Kristallen wurde eine thermoelektrische Gütezahl von bisher unerreichter Größe nachgewiesen. Diese Beobachtung legt nahe, dass Werkstoffe mit einer Schichtstruktur und stark anharmonischen Gitterschwingungen intrinsisch eine geringe Wärmeleitfähigkeit sowie einen großen thermoelektrischen Effekt aufweisen könn…
Abstract Cadmium electrodeposited EN24 steel shear bolts were used in space programme. Recently, one of five bolts subjected to wedge test at 18 Nm torque encountered failure. Fracture surface of failed bolt had two distinct regions, when viewed under scanning electron microscope. Outer region consisted of brittle fea…
We study density wave instabilities in a doubly degenerate Fermi-Fermi mixture with $\mathrm{SU}(2)\ifmmode\times\else\texttimes\fi{}\mathrm{SU}(2)$ symmetry on a square lattice. For sufficiently large on-site inter-species repulsion, when the two species of fermions are both at half-filling, two conventional ($s$ wav…