The authors analyze a model for N different measurements of persistent latent time series when measurement errors are mean-reverting, which implies common trend among measurements. study the consequences overdifferencing, finding potentially large biases in maximum likelihood estimators (MLE) dynamics parameters and reductions precision smoothed estimates variable, especially multiperiod object...

Generating effective employment opportunities is one of the principal challenges faced by development planners in Iran. If investment projects are undertaken on the basis of sectoral priorities in production and employment, the economic and social problems emanating from unemployment will be reduced, helping the Country’s process of development. In this paper, an attempt is made to identify key...

It is usually thought that a year consists of four seasons: spring, summer, autumn and winter. Taiwan basically follows the rule. Taiwan climate is mainly governed by monsoons. Therefore, the beginning of summer (winter) can be interpreted as the inward movement of summer (winter) monsoons. Considering the important role of mei-yu period, Chen (2000) pointed out that mei-yu should be added as a...

Abstract Purpose This paper proposes an integrated method for optimizing the response of underactuated linear vibratory feeders operating in open-loop control, under generic periodic excitations. The goal is ensuring a uniform motion tray, despite presence less actuators than degrees freedom and several specifications desired motion. Method To cope with nature these systems their non-minimum ph...

introduction heart failure is the second most common cause of ascites after cirrhosis. there are cardiac and noncardiac etiologies of ascites, and the multimodality imaging approach is a rich tool to redefine the final diagnosis. case presentation we present a case-series where 3 patients were referred to our hospital for further hepatology assessment due to severe abdominal ascites and liver f...