Genebank managers conduct viability tests on stored seeds so they can replace lots that have viability near a critical threshold, such as 50 or 85 % germination. Currently, these tests are typically scheduled at uniform intervals; testing every 5 years is common. A manager needs to balance the cost of an additional test against the possibility of losing a seed lot due to late retesting. We deve...

Non-isothermal crystallization kinetics of polydioxanone (PDO), a polymer with well-established applications as bioabsorbable monofilar suture, was investigated by Avrami, Mo, and isoconversional methodologies. Results showed Avrami exponents appearing in a relatively narrow range (i.e., between 3.76 and 2.77), which suggested a three-dimensional spherulitic growth and instantaneous nucleation ...

Indentation is a new method for estimating residual stress. The plastic behavior of the materials under study can affect indentation parameters and, thus, influences the results of residual stress measurement. In this paper, the effect of yield stress and work-hardening exponent on the accuracy of residual stress measurements in steels and aluminums was studied. Results showed that, for m...

The Fibonacci lengths of the finite p-groups have been studied by R. Dikici and co-authors since 1992. All of the considered groups are of exponent p, and the lengths depend on the celebrated Wall number k(p). The study of p-groups of nilpotency class 3 and exponent p has been done in 2004 by R. Dikici as well. In this paper we study all of the p-groups of nilpotency class 3 and exponent p2. Th...

The goal of this minireview is restricted to describe how the theoretical basis Kolmogorov (1937)–Johnson-Mehl (1939) –Avrami (1939–41) model has evolved from its birth up present day. model, which dates back late 1930s, purpose describing kinetics a phase transformation. Given nature article, although there are hundreds (if not thousands) experimental data concerning most disparate topics, int...

High-temperature laser sintering (HT-LS) is a very promising additive manufacturing process for the production of parts complex geometry highly demanding applications. Poly(aryl ether ketone) polymers such as poly(ether ketone), and ketone (PEKK) have attracted increasing interest during last decade use in HT-LS. Among them, PEKK offers advantage exhibiting tunable melting temperature crystalli...

By making use of an isothermal crystallization kinetics formulation in which growth and nucleation rates are functions the degree crystallization, we describe a process consisting birth spherical crystalline domains. It is found that beyond early stages role played by rate becomes quite insignificant as compared to domain rate. This contrast what would expect from simplified Avrami exponential ...