Merging top-down and bottom-up approaches in marine protected areas planning: experiences from around the globe

Block Copolymer Lithography : Merging “ Bottom - Up ” with “ Top - Down ” Processes

As the size scale of device features becomes ever smaller, conventional lithographic processes become increasingly more difficult and expensive, especially at a minimum feature size of less than 45 nm. Consequently, to achieve higher-density circuits, storage devices, or displays, it is evident that alternative routes need to be developed to circumvent both cost and manufacturing issues. An ide...

Blending Top-Down and Bottom-Up Approaches in Conceptual Design

In recent years, there has been significant attention given to improved methods and tools for engineering design. While advances for the latter stages of design have been impressive, this has not been the case for the early stages of design. In general, advances have provided for either a top-down or a bottom-up approach to design; ignoring the requirements for both abstraction and detail in a ...

Bottom-up, top-down

Top-down and bottom-up approaches towards silicon nanoelectronics

The performance of silicon-based VLSI circuits has steadily been improved by scaling down device dimensions, and a nearly exponential growth of microelectronics capabilities has been achieved. However, maintaining this top-down miniaturization trend is getting exceedingly hard due to fundamental physical and technological limitations as well as of the economical limitation. Nonconventional bott...

Top-Down versus Bottom-Up Approaches in Risk Management

Banks and other financial institutions face the necessity to merge the economic capital for credit risk, market risk, operational risk and other risk types to one overall economic capital number to assess their capital adequacy in relation to their risk profile. Beside just adding the economic capital numbers or assuming multivariate normality, the top-down and the bottom-up approach have been ...