Abstract Additive manufacturing processes allow the production of geometrically complex lightweight structures with specific material properties. However, by contrast ingot metallurgy methods, manufacture components using this process also brings about some challenges. In field microstructural characterization, where mostly very fine are analyzed, it is thus indispensable to optimize classic sa...

sometimes when hybridization in quantitative traits due to occurring of transgressive segregation phenomena in f2 and other generations, phenotypes are observed that are outside the scope of their parents. transgressive segregates can be fixed via selfing and selection. classical genetic and qtl studies know complementary action of genes as the main reason for the occurrence of the above phenom...

The article is devoted to a comprehensive analysis of the coating component from Ford Fo-cus 1.0 l EcoBoost engine. It one pair materially identical aluminum gears connected by drive pulley and drive. Aluminum gear components are surface treated with mixture metal powders using PVD technology, where goal increase hardness, abrasion resistance heat base material. chemical composition basic mater...

background :older adults with cerebrovascular accident (cva) show evidence of auditory and speech perception problems. in present study, it was examined whether these problems are due to impairments of concurrent auditory segregation procedure which is the basic level of auditory scene analysis and auditory organization in auditory scenes with competing sounds. methods : concurrent auditory seg...

the chemical composition and uniform distribution of alloying elements in the matrix of austempered ductile irons (adis) have significant influences on their properties, e.g. segregation of the alloying elements have detrimental effects on the mechanical properties of these materials. unlike previous studies, the homogenization treatment via partial melting was used in this study in order to re...

in this work the effects of various methods of agitation on the properties of electroless ni-p-mos2 composite coatings were investigated. magnetic stirring as well as purging the solution with gas (air, oxygen, nitrogen) were used. plating rate, chemical composition, mos2 distribution, and hardness of the deposit were measured. topography of coating was studied with metallography and scanning e...