Background: The magnetic resonance imaging (MRI)-based radiotherapy planning method have been considered in recent years because of the advantages of MRI and the problems of planning with two images modality. The first step in MRI-based radiotherapy is to evaluate magnetic resonance (MR) images geometric distortion. Therefore, the present study aimed to evaluate system related geometric distort...

Abstract Closure phase is the of a closed-loop product spatial coherences formed by ${\ge}3$ -element interferometer array. Its invariance to corruption attributable individual array elements acquired during propagation and measurement processes, subsequent calibration, errors therein, makes it valuable tool in interferometry applications that otherwise require high-accuracy calibration. Howeve...

Semantic primitives have been central to Yorick’s approach to language processing. In this peper I review the development of his ideas on the nature and role of primitives, considering them both from the narrower system point of view and in the larger context to which Yorick himself always referred.