Materials Literature
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A new metal–organic crystal, β-alanine cadmium bromide monohydrate (β-ACBM) has been grown from aqueous solution by slow evaporation technique. The grown crystals have been subjected to single crystal X-ray diffraction to determine the crystal structure. The β-ACBM crystallized in monoclinic system, which belongs to t…
In this paper, we investigate some relations between the invariants (including vertex and edge connectivity and forwarding indices) of a graph and its Laplacian eigenvalues. In addition, we present a sufficient condition for the existence of Hamiltonicity in a graph involving its Laplacian eigenvalues.
Results of investigations into the effect of chromium, which determines corrosion resistance, and its content in specimens of deposited metal on EK77 alloy varies in the range 21.1–20.8%, are presented. The optimum ratio of the alloying elements chromium, copper, manganese and silicon is determined. Data for the corro…
Ein neues Wirkstofftransportsystem mit Krebs-assoziiertem extrazellulärem Cathepsin-B als Zielstruktur wird von B. Turk, O. Vasiljeva et al. in ihrer Zuschrift auf S. 10241 ff. vorgestellt. Das entwickelte System basiert auf einem lipidierten, Cathepsin-B-spezifischen, in die Hülle der liposomalen Nanoträger eingebaut…
A glimpse into amorphous materials. In their Communication on page 10817 ff. R. Mazzarello, R. Dronskowski et al. investigate the bonding nature of amorphous GeTe, a prototypical phase-change data-storage material. Starting from a molecular-dynamics snapshot, the role of different structural motifs is elucidated by th…
Clusters are shared atoms in different ways with their neighboring clusters in the crystalline phases. Cluster formula [effective cluster] 1 (glue atom) x can be used to describe crystalline phases, and the effective cluster means the true cluster composition due to cluster overlapping in the phase structure. Degree o…
A low-cost spectrometer that covers a wide range of photon energies can be useful to teach spectroscopy, and for simple, rapid measurements of the photon spectrum produced by small plasma devices. The spectrometer here achieves its wide range, nominally from 1 eV to 200 keV, with a series of spherically and cylindrica…
An unlimited water-soluble white emitter with two-photon absorption has been designed and synthesized. Water solubility has strongly hindered the ability and application of white emitter with two-photon absorption (TPA) materials. To overcome this shortcoming, during the course of synthesis, the copolymer was prepared…
A thesis submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg, in fulfilment of the academic requirements for the degree of Doctor of Philosophy. Johannesburg, 2014.
In tegenstelling tot de vooroorlogse periode is er weinig onderzoek gedaan naar de naoorlogse periode van het Nederlandse bioscoopbedrijf. Om een bijdrage te kunnen leveren aan de naoorlogse geschiedenis van een nationale filmcultuur is het volgens de historicus Allen noodzakelijk om deze te benaderen op lokaal niveau…
Résumé : À partir de 2002, grâce à l’introduction du concept de la Qualité par la Conception (en anglais Quality by Design : QbD) par l’agence américaine des produits alimentaires et médicamenteux, l’industrie pharmaceutique a intensifié les efforts et les investissements pour permettre une libération en temps réel de…
indiretas ao meu trabalho.
The computer revolution experienced in recent years has been possible thanks to semiconductor materials, such as silicon, germanium and gallium arsenide. The success of the silicon-based microelectronics is due to the ability to integrate multiple elements on the same chip such as processors, memories, and interfaces.…
We report directional point-contact spectroscopy data on the novel Bi2Te3/Fe1+yTe interfacial superconductor for a Bi2Te3 thickness of 9 quintuple layers, bonded by van der Waals epitaxy to a Fe1+yTe film at an atomically sharp interface. Our data show a very large superconducting twin-gap structure with an energy sca…
This work enabled the development of a method of water treatment by plasma/catalysis coupling.The plasma treatments were carried out in two different reactors: a point/plane reactor and a dynamic reactor.Both reactors allow to control the gas atmosphere of the treatment. The feasibility of the degradation of aceticaci…
If you believe everything you are told by the media, your Gullibility Quotient is 100. If you don&s;t believe anything they tell you, your GQ is 0 but you probably have a closed mind and rarely learn anything new. Minimifidianism (having little or no faith) can be as unproductive as gullibility. In steering a course b…
We investigate the effect of electron-electron interactions in ABC stacked graphene trilayers. In the gapless regime, we show that the self-energy corrections lead to the renormalization of the dynamical exponent $z=3+α_{1}/N$, with $α_{1}\approx0.52$ and $N$ is the number of fermionic species. Although the quasiparti…
Using X-ray micro-diffraction and surface acoustic wave spectroscopy, we measure lattice swelling and elastic modulus changes in a W-1%Re alloy after implantation with 3110 appm of helium. A fraction of a percent observed lattice expansion gives rise to an order of magnitude larger reduction in the surface acoustic wa…
With growing global energy demand there will be an increased need for sources of renewable energy such as solar cells. To make these photovoltaic technologies more competitive with conventional energy sources such as coal and natural gas requires further reduction in manufacturing costs that can be realized by solutio…
This paper presents ab inition calculations of the surface phonon spectra of GeSe layered semiconductor compound, based on the Density Functional Perturbation Theory (DFPT). The surface has been imitated by a structure of periodically arranged slabs of two layers of GeSe crystal separated from other identical layers b…