With increasing global demand for nickel (which is a key component of stainless steel) the focus of mineral industry is currently on the abundant low-grade nickel laterite reserves. The extraction of nickel from the low-grade laterites is a technically difficult and expensive process and, as a result, the profitability of nickel production projects is highly affected by uncertainty over future ...

Two design problems at different levels in the control hierarchy are considered; optimization of robust low-level controllers with constrained control signal activity and optimization of economical high-level polyethylene grade changes. As for the first design problem, a constraint on control signal activity due to measurement noise is presented and used when optimizing and comparing PI/PID con...

Controversy has arisen regarding the effectiveness of neuraminidase inhibitors (NIs), especially against influenza-related complications. A literature search was performed to critically assess the evidence collected by the available systematic reviews (SRs) regarding the benefits and disadvantages of NIs (oseltamivir, zanamivir) compared to placebos in healthy and at-risk individuals of all age...

introduction: serum c-reactive protein (crp) is believed to be increased in metastatic urothelial cancer of the bladder. however, the changes depend on the stage and grade of the upper tract urothelial carcinoma (utuc). this study aimed to compare low-range and high-range serum crp and haptoglobin in new cases of utuc. materials and methods: blood was collected from newly diagnosed patients wit...

the quality of firms’ reaction against demand uncertainty affects the production inputs employment. in this research i have studied and compared the behavior of active firms in manufacturing sector with respect to the risk attitude and tested it’s effect on production inputs combination(with the special emphasize on labor employment). the research findings reveal that active firms in manufactur...

Intolerance of uncertainty (IU) is increasingly conceptualized as a transdiagnostic factor underlying anxiety disorders and depression. Current understanding of the relationship between intolerance of uncertainty and specific obsessive compulsive symptom domains remains limited. The purpose of the present study was to explore the prevalence of obsessive compulsive beliefs and intolerance of unc...