The paper addresses the optimal design of parallel manipulators based on multi-objective optimization. The objective functions used are: Global Conditioning Index (GCI), Global Payload Index (GPI), and Global Gradient Index (GGI). These indices are evaluated over a required workspace which is contained in the complete workspace of the parallel manipulator. The objective functions are optimized ...

The paper addresses the optimal design of parallel manipulators based on multi-objective optimization. The objective functions used are: Global Conditioning Index (GCI), Global Payload Index (GPI), and Global Gradient Index (GGI). These indices are evaluated over a required workspace which is contained in the complete workspace of the parallel manipulator. The objective functions are optimized ...

ed by: African Index Medicus (WHO), CAB Abstracts, Global Health Abstracts, Asian Science Index, Index Veterinarius Full-text available at http://www.ajbrui.com

Infrastructure-as-a-Service clouds are rapidly evolving into market-like environments that offer a wide range of server contracts. Amazon EC2’s spot market is the clearest example of this trend: it operates over 5000 markets globally where users can rent servers for a variable price. To exploit spot instances, while mitigating the risk of price spikes and revocations, many researchers and start...

Riassunto: Scopo di questo lavoro è proporre un indice globale di bontà dell’adattamento per i modelli ad equazioni strutturali stimati mediante il metodo PLS. Al momento gli indici comunemente utilizzati in questo ambito sono la comunalità (bontà di adattamento del modello esterno) e la ridondanaza (qualità del modello interno). Si propone un indice che, alla stregua del test del chi-quadro e ...

This paper proposes a global cost Malmquist productivity index, new cost Malmquist productivity index, that is circular and that gives a single measure of productivity change. The index is inspired by the global Malmquist productivity index as extended to productivity measurement. Decomposition of the proposed cost Malmquist productivity index is presented. Numerical results are presented for a...

To relate stability of malaria transmission to biologic characteristics of vector mosquitoes throughout the world, we derived an index representing the contribution of regionally dominant vector mosquitoes to the force of transmission. This construct incorporated published estimates describing the proportion of blood meals taken from human hosts, daily survival of the vector, and duration of th...

Changes in Heat Index (a combined measure of temperature and humidity) associated with global warming are evaluated based on the output from four extended integrations of the GFDL coupled ocean-atmosphere climate model. The four integrations are: a control with constant levels of atmospheric carbon dioxide (CO2), a second integration in which an estimate of the combined radiative forcing of gre...

We derive a global index theorem for degenerate variational inequality problems defined by a continuously differentiable function F over a convex set M represented by a finite number of inequality constraints. Our index theorem can be applied when the solutions are non-singular and possibly degenerate, as long as they also satisfy the injective normal map property, which is implied by strong st...

Ventricular Function To the Editor: In pulmonary disease, right ventricular dysfunction has an important bearing on prognosis.1 Incalzi et al2 recently demonstrated the prognostic implications of electrocardiographic signs of chronic cor pulmonale in patients with chronic obstructive pulmonary disease. Two electrocardiographic features in particular, an S1S2S3 pattern and a P-wave axis of .90°,...