Cutting through yesterday's understanding.

Some Atomic Absorption Spectrometric Applications to Clinical-Biomedical Trace Metal Analyses

Following the introduction of atomic absorption spectrometric (AAS) instrumentation about 30 years ago, many specific and sensitive methods for determining trace metal concentrations in biological materials were developed. Yesterday's rare and esoteric investigations are today's routine clinical analyses. Levels of essential and toxic metals can be determined with relative ease for diagnostic p...

Just Google It: Young Children’s Preferences for Touchscreens versus Books in Hypothetical Learning Tasks

Children today regularly interact with touchscreen devices (Rideout, 2013) and thousands of "educational" mobile applications are marketed to them (Shuler, 2012). Understanding children's own ideas about optimal learning has important implications for education, which is being transformed by electronic mobile devices, yet we know little about how children think about such devices, including wha...

Today's misery and yesterday's happiness: Differential effects of current life-events on perceptions of past wellbeing

Modelling and Numerical Simulation of Cutting Stress in End Milling of Titanium Alloy using Carbide Coated Tool

Based on the cutting force theory, the cutting stress in end milling operation was predicted satisfactorily through simulation of using finite element method. The mechanistic force models were introduced in high accuracy force predictions for most applications. The material properties in the simulations were defined based on the cutting force theory, as a function of strain and strain rate wher...

The Impact of Producibility on Cost and Performance in Naval Combatant Design

Will the US Navy take producibility seriously in the next surface combatant? It is not easy to challenge yesterday's design paradigms and standards. Combatant ship designers have been conditioned to optimize performance and minimize risk. Producibility enhancements can cut cost, but some compromise in performance is expected, and change implies risk. A rational approach to producibility require...