In the present work, a material model development approach and transient non-linear dynamics simulations of the projectile/armor interactions are employed to explore the role of multi-walled carbon-nanotube (MWCNT) reinforcements in improving the ballistic-protection performance of poly-vinyl-ester-epoxy matrix (PVEE /E-glass fiber matrix reinforced laminate armor.
In our pragmatic model development approach, we combined confirmatory and exploratory purposes.
We adopted a model development approach in which we sought to determine the best model fit by modifying pathways between the four areas of interest.
One of the major practical problems in a model development approach is that the methods are very demanding of researchers' methodological skills and content knowledge of the application.
This model development approach used for the background functions above can also be used to decide on the number of underlying frequencies in the data.
A path model development approach was used to identify factors with direct (± indirect) effects on the intention to participate in a falls prevention assessment and multifactorial intervention program over the following year.
Model development approach: In practice, much SEM research combines confirmatory and exploratory purposes: a model is tested using SEM procedures, is found to be deficient, and an alternative model is then tested based on changes suggested by SEM modification indexes such as the Lagrange multiplier index, the Wald test index, etc.
Their distribution in the indoor environment determines how people are exposed, so characterizing this distribution informs model development, sampling approaches, and strategies for intervention to reduce exposure.
Fuzzy and model-driven development approaches [34 38] are also adopted for usability evaluation of software and websites.
Early discussions around model-based development approaches will streamline the scientific advances on M&S with the regulatory requirements, and facilitate regulatory competence building on M&S and acceptance at FIH clinical trial applications, but also at later stages of development when regulatory interactions occur.
