The estimation of the losses due to friction meshing tooth flanks is an important point in design gear drives. In addition other factors, efficiency a stage criterion for selecting type and number stages order achieve desired ratio. This manuscript deals with various approaches which that result from face-gear can be estimated. addition, influence directions sliding rolling speed investigated, ...

In this thesis, I have addressed a broad range of issues in clinical assessment, and presented new methods for improving its efficiency and accuracy. In clinical practice, assessments are often performed for making decisions: for example, assessment may be aimed at deciding which treatment should be provided to a patient. By taking the decision for which assessment is performed into account, th...

The purpose of the article is to substantiate the theoretical positions and develop practical recommendations for the development of tools for analytical assessment of the competitiveness of an enterprise, taking into account the influence of the corruption component. It has been established that the main inalienable structural components of the analytical assessment of the competitiveness of e...

This paper studies how to conduct efficiency assessment using data envelopment analysis (DEA) in interval and/or fuzzy input–output environments. A new pair of interval DEA models is constructed on the basis of interval arithmetic, which differs from the existing DEA models handling interval data in that the former is a linear CCR model without the need of extra variable alternations and uses a...

The advent of data envelopment analysis (DEA) enabled the measurement of efficiency to be extended to the case of multiple outputs. Prior to DEA we had the parametric approach based on multiple regression. We highlight some difficulties associated with these two approaches and present a hybrid which overcomes them whilst maintaining the respective advantages of each. This hybrid models the effi...

Myocardial work and its metabolic cost are important parameters in the pathogenesis and management of cardiovascular diseases. Myocardial efficiency, unlike other commonly used measures of cardiac function, accounts for both parameters. It has been demonstrated that myocardial oxygen demand can be reliably quantified using positron-emitting radionuclide tracers of oxygen flux, whereas cardiac w...