BiFeO heterostructures were manufactured using intermittent sputtering technology on the surface of a single crystal substrate MgO(001) 3 /(Sr, Ba)Nb 2 O 6 . Studies structure, thickness profile composition, morphology and dielectric characteristics materials have been carried out. It is established that despite formation two types orientation domains (±18.4 o ) in layer (Sr, , upper ratio tota...

In this paper, published studies on the bonding phase of calcium ferrite are reviewed. As main high-basicity sinter, has advantages high strength, good reducibility and easy formation liquid phase. particular, we emphasize process phases, especially Silico-Ferrite Calcium Aluminum(‘SFCA’), influence common gangue components (Al2O3, SiO2, MgO) its formation. Based critical analysis current data,...

PURPOSE Nutrients and immunological factors of breast milk are essential for newborn growth and the development of their immune system, but this secretion can contain organic and inorganic toxins such as barium. Colostrum contamination with barium is an important issue to investigate because this naturally occurring element is also associated with human activity and industrial pollution. The st...

Whole-cell and single-channel calcium currents in enzymatically isolated dog saphenous vein cells were recorded by the patch-clamp method. Test pulses to negative potentials from holding potentials of -90 to -40 mV elicited currents that inactivated quickly and in a voltage-dependent manner (called I low for low threshold). A second calcium current persisted even at relatively positive holding ...

Articulating spacers should be wear-resistant and load-bearing to avoid prolonged immobilization of the patient and to reduce morbidity. However, due to the articulation of both components, a release of cement wear particles is to be expected. The aim of this study was to investigate the wear performance of a new spacer cement that contains calcium carbonate as a radio-opaque substance, in comp...

The temperature dependent band edge energy of the novel tungsten bronze type calcium barium niobate (CBN) is measured over a temperature range from 80 K to 573 K. CBN has been under investigation for serveral years and is believed to be a promising material for future applications. Czochralski-grown, colorless single crystals from the congruently melting composition with a calcium content of 0....