In the context of PTOLEMY project, need for a site with rather low cosmogenic induced background led us to measure differential muon flux inside bunker Monte Soratte, located about 50~km north Rome (Italy). The measurement was performed Cosmic Ray Cube (CRC), portable tracking device. simple operation crucial finalise measurements, as they were carried out during COVID-19 lockdown and in devoid...

After the fall of the Roman Empire in AD 476, scientific progress in Europe had come to a standstill. This era between fall of Rome and the Renaissance is commonly known as the dark ages. However, from the 8th till 13th century, scientific and cultural knowledge had flourished in the Islamic world. This period, which began soon after the establishment of the Abbasid Khalifate in Baghdad in the ...

Abstract This article revisits the origins of Alexander Mosaic at Pompeii by focusing on figure standing Alexander's right hand. The starting point is Andreas Rumpf's suggestion that this “right-hand man” may be patron original painting, who wished to advertise his own role in represented battle. It argued Ptolemy I perhaps strongest candidate historical grounds, and interesting connections can...

A mis padres, que valen más que cien maestros. ABSTRACT I ABSTRACT Despite the well known advantages of distributed processing for intensive computations like simulation, frameworks often fail to exploit them. A distributed simulation is harder to develop than a sequential one, because it is necessary to interface and map activities to processors and handle the ensuing communication and synchro...

In the domain of heterogeneous model composition, semantic adaptation is the “glue” that is necessary to assemble heterogeneous models so that the resulting composed model has well-defined semantics. In this paper, we present an execution model for a semantic adaptation interface between heterogeneous models. We introduce a Domain-Specific Language (DSL) for specifying such an interface explici...

Complex systems demand diversity in the modeling mechanisms. One way to deal with a diversity of requirements is to create flexible modeling frameworks that can be adapted to cover the field of interest. The downside of this approach is a weakening of the semantics of the modeling frameworks that compromises interoperability, understandability, and analyzability of the models. An alternative ap...

A perennial problem in the process of developing signal processing systems is identifying an architecture which meets the computational and memory needs of the algorithm yet is still affordable in terms of cost, size, and complexity. To aid in making this decision, an architecture trade tool, using the Ptolemy kernel, has been developed. The purpose of this tool is to provide the user with an e...

Many of today’s signal processing applications are becoming more and more computationally intensive, requiring an increasing number of processors to satisfy their needs. Along with the larger number of processors, the bandwidth needed to pass data among the processors has also increased dramatically. In many classes of applications, designing an architecture to satisfy the data passing requirem...