This study investigates the decision making between fitness function with differing variance and computational-cost values. The objective of this decision making is to provide evaluation relaxation and thus enhance the efficiency of the genetic search. A decisionmaking strategy has been developed to maximize speed-up using facetwise models for the convergence time and population sizing. Results...

This study proposes an investment for the evaluation of fatigue cracks by eddy current testing (ECT). Fatigue cracks (FC) manufactured on SUS316 plates are detected using ECT. Inverse analysis is applied to the ECT signals and both crack depth and length are estimated. Two models are applied, one is the EDM model without conductivity, and the other is the SCC model with partial conductivity. Th...

A particle-sizing method based on laser diffraction suffers from several major pitfalls, namely: (1) the method is based on false assumptions (2) the reported distribution can be skewed towards the smaller range (3) the results vary significantly with optical parameters (4) the software used for calculation of results can not be independently validated (5) the accuracy of measurements for non-s...

A timing optimization algorithm dealing with circuits containing mixed domino and static logic is described. Transistor-level node timing constraints of domino logic is described. The optimization procedure preserves the requirements of maintaining adequate noise margins by constraining the sizing procedure. After sizing, charge-sharing problems are identi ed with a new method and recti ed.

This paper presents a new method for hierarchical characterization of analog integrated circuits. For each circuit class, a fundamental set of performances is defined and extracted topology-independently. A circuit being characterized is decomposed in general subcircuits. Sizing rules of these topology-independent subcircuits are included into the characterization by functional constraints. In ...