The backward differentiation formula (BDF) is a useful family of implicit methods for the numerical integration stiff differential equations. It well noticed that stability and convergence $A$-stable BDF1 BDF2 schemes parabolic equations can be directly established by using standard discrete energy analysis. However, such classical analysis technique seems not applicable to BDF-$\mathbf{k}$ $3\...

A brief overview of the state research on selection new constant biotechnological lines – donors glyphosate resistance and prospects creating hybrids sugar beet are presented. Experimental data nature inheritance in different genotypes (mmSxxzz, mmNxxzz, MMTOp, etc.) were obtained. For first time, separate joint fruit lines-donors with 90-100% In competitive environmental tests, glyphosate-tole...

The performance of nine different vapor barrier systems comprising polyethylene (PE) membranes were assessed. comprised virgin PE, 100% new regenerated PE and multilayered PE. Membranes joined either with tape suited to the individual system or an adhesive base on butyl rubber. evaluated compared using standard laboratory tests. Chemical analytical techniques physicomechanical tests used. Mecha...

Soluble or instant espresso coffee in capsules with added values is a product that increasingly recognized as healthy lifestyle habit, which often goes together the expansion of spa centers and hotels. In addition to theoretical empirical examination sustainable drinking habits regarding different types Serbia, aim was define, by applying theory planned behavior, relationship between certain fa...