the composite powders of barium-magnesium ferrite were prepared using sol-gel auto-combustion and microwave methods. the crystal structure and the shape of nanocomposites have been compared. x-ray diffraction (xrd), scanning electron microscope (sem) and vibrating sample magnetometer (vsm) were used to investigate the structural, morphological and magnetic properties of nanopowder. the formatio...

objective: osseous defects around dental implants are often seen when implants are placed in areas with inadequate alveolar bone, or around failing implants. bone regeneration in these areas using bone grafts or its substitutes may improve dental implants prognosis. the aim of this study was to prepare and characterize the bioactive glass nanopowder and development of its coating for treatment ...

Eukaryotic genes are transcribed as pre-mRNAs which are interrupted by noncoding introns. Selection and accurate removal of introns is an essential step in gene expression that is performed by a large and highly dynamic macromolecular machine, called spliceosome. A major challenge for structural studies of the spliceosome is represented by its large size as well as its dynamic nature. Electron ...

In January 2010, we conducted a multichannel seismic (MCS) reflection survey in Sagami Bay. As a result of this study, the deformation of the Manazuru Knoll, which is located near the plate boundary, was obtained. The Manazuru Knoll was formed by an asymmetric anticline, and the knoll has a geometry that is bent in a shape similar to that of a crank. The anticlinal axis, which was confirmed by ...

Unravelling the burial-deformation history of sedimentary rocks is prerequisite information to understand regional tectonic, sedimentary, thermal, and fluid-flow evolution foreland basins. We use a combination microstructural analysis, stylolites paleopiezometry, paleofluid geochemistry reconstruct Meso-Cenozoic carbonate sequence Cingoli Anticline (Northern Apennines, central Italy). Four majo...

The prevalent strategy in the topology optimization phase is to select a subset of members existing in an excessively connected truss, called Ground Structure, such that the overall weight or cost is minimized. Although finding a good topology significantly reduces the overall cost, excessive growth of the size of topology space combined with existence of varied types of design variables challe...

L. Kuchariková, E. Tillová, J. Belan, M. Chalupová, A. Vaško, I. Švecová, University of Žilina, Faculty of Mechanical Engineering, Slovakia The present work deals with evaluation of eutectic Si (its shape, size, and distribution), dendrite cell size and dendrite arm spacing in aluminium cast alloys which were cast into different moulds (sand and metallic). Structural parameters were evaluated u...