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Article
Open AccessFast Multi-Wavelength Pyrometer for Dynamic Temperature Measurements
Multi-wavelength pyrometry is an efficient tool for measuring high temperatures in dynamic experiments. A fast 5-channel pyrometer was built and successfully employed in ion-beam heating experiments at the GSI...
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Article
Vibrational response of strontianite at high pressures and high temperatures and construction of P–T phase diagram
Our joint high-pressure and high-temperature mid-infrared absorbance and Raman investigations on a synthetic strontianite sample led to the construction of the respective pressure–temperature P–T phase diagram (m...
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Article
Long-term indoor VOC concentrations assessment a trend analysis of distribution, disposition, and personal exposure in cohort study samples
Inhalation is one of the entry ports for different chemicals into the human body. In order to investigate this application route and its negative health effect to humans, the presence of volatile organic compo...
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Chapter and Conference Paper
An Equation Error Approach for the Identification of Elastic Parameters in Beams and Plates with \(H_1\) Regularization
In this short note deals with the nonlinear inverse problem of identifying a variable parameter in fourth-order partial differential equations using an equation error approach. These equations arise in several...
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Chapter
Iterative Methods for the Elastography Inverse Problem of Locating Tumors
The primary objective of this work is to present a rigorous treatment of various iterative methods for solving the elastography inverse problem of identifying cancerous tumors. From a mathematical standpoint, ...
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Article
Open AccessNew Developments in Proton Radiography at the Los Alamos Neutron Science Center (LANSCE)
An application of nuclear physics, a facility for using protons for flash radiography, has been developed at the Los Alamos Neutron Science Center (LANSCE). Protons have proven far superior to high energy x-ra...
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Article
Erstellung von Hochwassergefahrenkarten für grenzüberschreitende Fließgewässer
Im Projekt CEframe werden für die grenzüberschreitenden Flüsse Thaya, March, Donau und Leitha Strategien und Empfehlungen für ein verlässliches und nachhaltiges grenzüberschreitendes Hochwassermanagement erarb...
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Article
Computer simulation of Na-bearing majoritic garnet
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Chapter
Plasticity based crack models and applications
Models for the numerical simulation of concrete cracking are traditionally based either on the smeared crack approach or the discrete crack approach.
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Article
Atomistic model of diopside-K-jadeite (CaMgSi2O6-KAlSi2O6) solid solution
Atomistic model was proposed to describe the thermodynamics of mixing in the diopside-K-jadeite solid solution (CaMgSi2O6-KAlSi2O6). The simulations were based on minimization of the lattice energies of 800 struc...
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Article
Piezoelastic properties of retgersite determined by ultrasonic measurements
The elastic tensor of the tetragonal NiSO4 . 6H2O (retgersite) was measured with a resonant ultrasonic plane parallel plate technique at room temperature as a function of hydrostatic pressure in the range of 0.1-...
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Chapter and Conference Paper
Synthesis and Structure–Property Relations of Binary Transition Metal Carbides at Extreme Conditions
The synthesis of binary transition metal carbides in laser heated diamond anvil cells is discussed. The use of density functional theory calculations to determine structure–property relations is described.
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Article
Order/disorder phase transition in cordierite and its possible relationship to the development of symplectite reaction textures in granulites
Based on a consistent set of empirical interatomic potentials, static structure energy calculations of various Al/Si configurations in the supercell of Mg-cordierite and Monte Carlo simulations the phase trans...
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Article
High-pressure properties of diaspore, AlO(OH)
The structural compression mechanism and compressibility of diaspore, AlO(OH), were investigated by in situ single-crystal synchrotron X-ray diffraction at pressures up to 7 GPa using the diamond-anvil cell te...
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Article
Lattice dynamics and elastic properties of PbF \(\mathsf{_2}\) and BaF \(\mathsf{_2}\) from quantum mechanical calculations
The lattice dynamics of \(\beta\) -PbF2, $...
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Chapter and Conference Paper
Introduction to High Pressure Computational Crystallography
‘Computational crystallography’ is the subfield of crystallography in which structure-property relations are studied with atomistic models (Winkler, 1999) . It is in many respects a complementary tool to diffr...
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Article
The high-pressure α/β phase transition in lead sulphide (PbS)
The high-pressure behaviour of PbS was investigated by angular dispersive X-ray powder diffraction up to pressures of 6.8 GPa. Experiments were accompanied by first principles calculations at the density funct...
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Article
A theoretical investigation of the relative stabilities of Fe-free clinozoisite and orthozoisite
The relative stabilities of orthozoisite, Ca2Al3[O|OH|Si2O7|SiO4], space group Pnma, and the monoclinic polymorph, clinozoisite, space group P21/m, have been investigated using calculations based on density func...
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Article
Garnets: Structure, compressibility, dynamics, and disorder
The structure and properties of anhydrous end members of the garnet family were investigated by quantum mechanical calculations as a function of applied pressure. The results were used to analyze the compressi...
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Chapter
Ab Initio Study of Structure and Compressibility of Garnets
The structure and properties of anhydrous end-members of the garnet family (ugrandite and pyralspite garnets) have been investigated as a function of applied pressure. We also calculated properties of hydrogro...
