In industrial production lines, for example in the automotive industry, cells with multiple industrial robots are common. In such cells, each robot has to avoid running into static obstacles and when the robots work together in a shared space they must also avoid colliding with each other. Typically, the latter is enforced by manually implementing interlocks in programmable logic controllers (P...

Congestion indicates an economic state where inputs are overly invested. Evidence of congestion occurs whenever reducing some inputs can increase outputs. In this paper, we present a new model to identify and evaluate congestion in Data Envelopment Analysis (DEA). We use output efficient DMUs to construct our proposed model to evaluate congestion. We also proposed a linear inequality and equali...

In statistics it is often assumed that sample observations are independent. But sometimes in practice, observations are somehow dependent on each other. Spatiotemporal data are dependent data which their correlation is due to their spatiotemporal locations.Spatiotemporal models arise whenever data are collected across bothtime and space. Therefore such models have to be analyzed in termsof thei...

Let V and W be two real vector spaces and let &sim be a relation on both V and W. A linear function T : V → W is said to be a linear preserver (respectively strong linear preserver) of &sim if Tx &sim Ty whenever x &sim y (respectively Tx &sim Ty if and only if x &sim y). In this paper we characterize all linear functions T : M_{n,m} → M_{n,k} which preserve or strongly preserve multivariate an...

Abstract The detection of sensor faults has proven to be easier through data-driven methods which rely on historical data collected from sensors that are placed at various locations in a process plant. Since the distribution industrial variables is random and non-Gaussian, independent component analysis (ICA) method been better suited for fault (FD) problems. Whenever comes with any level noise...

there are several etiologies for agitation and headache in the recovery room, including preoperative or intraoperative drug administrations, physical disorders such as painful surgical procedures, and finally, unusual consequences of some operations such as subarachnoid hemorrhage after orbital decompression, a disastrous complication that should be particularly considered whenever facing any s...

this article describes the cause of a sinus tract developed four years after implant-supported prosthodontic treatment. the sinus tract and pain appeared to be associated with an accidentally embedded piece of condensation silicone impression material. the residual material was removed by a simple surgical incision. clinicians should be aware of the odds of this event and take it into considera...