Materials Literature
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A barometric calorimeter technique has been developed to characterize the temporal evolution of combustion in confined explosions. By comparing pressure measurements for explosions in air versus nitrogen, one can make visible the gasdynamic (pressure) consequences of the exothermic energy release. The late-time chambe…
We report on the X-ray powder diffraction and magnetic measurements of the polycrystalline and the two nanocrystalline samples of DyMnO3 compound synthesized at temperatures of 800 and 850 C. All samples at room temperature crystallize in the orthorhombic crystal structure (space group P nma). The crystal structure pa…
There has been an exponential rise in the use of minimally invasive procedures in surgery, with obvious benefits to patients. Recently, transumbilical single-port laparoscopic surgery has been championed as the next major technical advance. In this article, we report the first case where single-port laparoscopic surge…
ABSTRACT A simplified method has been adapted for the extraction and purification of the massive myofibrillar protein titin from the skeletal muscle of sea bream to homogeneity, and a specific polyclonal antibody against titin was generated in rat. The effect of myofibril-bound serine proteinase (MBSP) on the degradat…
The current paper applies both molecular modeling and mesoscale modeling to determine modulus and defect formation in epoxy and epoxy-copper interfaces. The results will show that molecular modeling may be applied directly to parameterize the bead properties used in the mesoscale model, which scale to the physical pro…
Abstract In this work the wetting behaviour of amorphous and crystalline silicon dioxide in contact with a silicate slag based on fayalite is demonstrated as a function of contact angles, activation energies of the kinetic stages of wetting. In addition the dynamic adhesion work has been calculated as a function of th…
The thermal dissipation challenges that are seen today with single-chip components will only be magnified with the introduction of System in Package devices. The traditional compact representation of IC components that utilises the generation of thermal resistance networks for modelling their complex mechanical struct…
Rogermitchellite is a new, complex species of zirconosilicate found in igneous breccia at the Poudrette quarry, Mont Saint-Hilaire, Quebec. It is associated with aegirine, annite, galena, a labuntsovite-group mineral, manganoneptunite, microcline, pyrrhotite, sodalite and zircon. Paragenetically, the mineral crystalli…
A general method of constructing a dissipation function is developed for disordered magnetic media and for magnetically ordered systems. As an example it is shown for a ferromagnet that not only the invariance with respect to uniform rotations of the body but also the law of conservation of magnetization must be taken…
The synthesis of octakis(4,5-bis{2-[2-(1-naphthyloxy)ethoxy]ethoxy}) metal-free (4) and metallophthalocyanines (5–8) were carried out by the cyclotetramerization of a 4,5-bis{2-[2-(1-naphthyloxy)ethoxy]ethoxy}phthalonitrile (3). Newly substituted octakisphthalocyanines showed enhanced solubility in organic solvents. T…
The structure and electronic properties of CdS, CdSe, and CdTe thin films and multilayer CdS/CdSe/CdS and CdS/CdTe/CdS heterostructures simulating quantum wells of these compositions are performed using density functional theory and a slab approximation. Various crystal modifications and various crystallographic surfa…
Kurzfassung Richten ist auf den ersten Blick nicht wertschöpfend. So wird häufig erst einmal versucht, den Härteverzug durch Optimierung der Wärmebehandlungsverfahren zu verringern und entweder ganz ohne einen Richtvorgang die Zeichnungstoleranzen zu erreichen oder mit einfachen Hilfsmitteln zum Ziel zu kommen. Die Pr…
Grain size seems to have only a minor influence on the cyclic strain strain curves (CSSCs) of metallic polycrystals of medium to high stacking fault energy (SFE). That is why many authors tried to deduce the macroscopic CSSCs curves from the single crystals ones. Either crystals oriented for single slip or crystals or…
The fabrication method of an annular pellet with highly precise diametric tolerances, same dimensions, and various sintered densities has been investigated. To examine the in-pile densification and swelling of the annular pellet, 5 different types of annular pellet were prepared for a HANARO irradiation test. In order…
Nano-N doped TiO2 powders were synthesised with solvothermal processes. Four kinds of starting compositions were used for solvothermal syntheses of N doped TiO2 powders. The powders were characterised with XRD, SEM and spectrophotometry. The powder synthesised with titanium sulphate and diethylenetriamine has the high…
The propagation of stage I-cracks is simulated in a mill-annealed microstructure of forged Ti6Al4V, consisting of primary alpha grains and lamellar alpha/beta colonies. The crack growth mechanisms are investigated experimentally by means of fatigue tests yielding the following results: Within primary alpha grains crac…
The temperature quenching of intrinsic luminescence of a lead silicate glass of the 20PbO · 80SiO 2 composition has been investigated in the temperature range 7–200 K. It has been found that the temperature behavior of the intensity of intrinsic luminescence does not obey the well-known Mott’s law for intracenter quen…
We know from Landau theory that the natural language to deal with distorted structures is the one of symmetry-adapted modes. A symmetry-mode decomposition is both useful for investigating the mechanisms responsible of these phases and for pure crystallographic purposes. Some symmetry-mode components are usually domina…
Polydentate carboxylate platforms based on polyester polyol Boltorn H, containing from 8 to 14 carboxy groups in terminal positions were obtained. A method of synthesis of Cu(II) polynuclear complexes with polyester carboxylates Boltorn H with a degree of substitution of 65 and 90% was developed.
The influence of a monotonic predeformation at room temperature on the very high cycle fatigue (VHCF) behaviour was studied on polycrystalline nickel-based superalloys (Nimonic 75 and Nimonic 80A) in three characteristic precipitation (precipitationfree, peak-aged and overaged) and different predeformation conditions.…