For renovation of functional surfaces of machines and devices for agricultural production it is possible to use, in addition to conventionally used methods, polymers with fillers - composites.The presence of microparticles in the polymeric matrix improves substantially the abrasive wear resistance and hardness.This contribution describes tribologic
Extensive research has been dedicated to elucidating the role of various nitrogen sources, nitrogen concentrations and the timing of addition when modulating grape must fermentation using yeast.The wine industry invests substantial resources in both the vineyard and the winery to provide adequate nitrogen concentrations for fermentation.This approa
This paper describes the rehabilitation of the existing bridge over the Olifants River.The bridge is on National Route 7 near Klawer and dates back to 1957.The defining feature of this elegant bridge is a concrete arch spanning 92.7 m.The existing bridge displayed extensive cracking, E-Nail failed expansion joints and spall damage to beam soffits.S
Background Suicide is a serious social problem among older adults.However, little is known about how multidimensional factors affect suicide of older adults.Aims We classify the multidimensional suicidal risk types of older adults based on Hearing Protection their characteristics and identify differences in suicidal ideation.Method Data were obtain
The classical Godunov method is widely used for the numerical study of waves in continuous media.If the Courant condition is satisfied, the Godunov scheme is stable and monotonous.However, due to its first order of accuracy it can lead to rather large smearing of jumps, contact discontinuities, and other Scissors features of the solution in the dom