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 ...

We consider mixed-integer linear programming (MIP) models of production planning problems known as the small bucket lot-sizing and scheduling problems. We present an application of a class of valid inequalities to the case with lost demand (stock-out) costs. Presented results of numerical experiments made for the the Proportional Lot-sizing and Scheduling Problem (PLSP) confirm benefits of such...

The simultaneous optimization of aircraft shape and internal structural size for transonic flight is excessively costly. analysis the governing physics expensive, in particular highly flexible aircraft, search optima using samples can scale poorly with design space size. This paper has a two-fold purpose targeting scalable reduction sampling. First, new algorithm explored computing derivatives ...

This paper represents a long-standing collaboration between Robert Fildes and Brian Kingsman who sadly died before it could be completed. This paper proposes a methodology for examining the effect of demand uncertainty and forecast error on lot sizing methods, unit costs and customer service levels in MRP type manufacturing systems. A number of cost structures were considered which depend on th...

PURPOSE To assess the efficacy of high-frequency ultrasound biomicroscopy (UBM) in improving the accuracy of phakic intraocular lens (pIOL) sizing by increasing the incidence of acceptable postoperative vault. SETTING Multiple private practices, United States. DESIGN Evaluation of diagnostic test or technology. METHODS This prospective multicenter clinical study evaluated eyes having pIOL...

One of the fundamental problems in operations management is to determine the optimal investment in capacity. Capacity investment consumes resources and the decision is often irreversible. Moreover, the available capacity level affects the action space for production and inventory planning decisions directly. In this paper, we address the joint capacitated lot sizing and capacity acquisition pro...

Dynamic line rating (DLR) is an emerging technology that can remove strict power transmission constraints and potentially reduce investment costs in new generation technologies a microgrid. By implementing dynamic into distributed sizing placement problem, it possible to the on energy resources by achieving improved optimal flow results as compared planning without considering DLR. This paper e...

Early estimation of project size and completion time is essential for successful project planning and tracking. Multiple methods have been proposed to estimate software size and cost parameters. Suitability of the estimation methods depends on many factors like software application domain, product complexity, availability of historical data, team expertise etc. We present an empirical validatio...

This paper proposes a new multi-objective framework for optimal placement and sizing of the active power filters (APFs) with satisfactory and acceptable standard levels. total harmonic distortion (THD) of voltage, harmonic transmission line loss (HTLL), motor load loss function (MLLF), and total APFs currents are the four objectives considered in the optimization, while harmonic distortions wit...

Integration of Distributed Generation (DG) in an electrical distribution system has increased recently due to voltage improvement, line loss reduction, environmental advantages, and postponement of system upgrading, and increasing reliability. Improper location and capacity of DG may affect the voltage stability on the Distribution System (DS). Optimization techniques are tools used to predict ...