background: the axillary and supraclavicular nodal volume treatment results in improvement of local control and survival after breast conserving surgery (bcs) or modified radical mastectomy (mrm). studies on the depth of these nodes have questioned the consistent use of standard fields for all patients. this study was done to assess the dose delivery to these lymph nodes with conventional treat...

Two methods of multiple/large/foreign databases processing using massively parallel computers are described. The first method employs a Distributed Cache Subsystem (DCS) offering the total memory of parallel processing nodes as a very large read-only disk cache for other parallel processing nodes. The second method is based on a Database Slicing (DS) algorithm that provides logical partitioning...

The idea of active networks has been emerged in recent years to increase the processing power inside the network. The intermediate nodes such as routers will be able to host mobile agents and many management tasks can be handled using autonomous mobile agents inside the network. One of the important limitations, which should be considered in active networks, is the restricted processing power o...

In this work, we introduce an interconnected nano-optoelectronic spiking artificial neuron emitter-receiver system capable of operating at ultrafast rates (about $100\phantom{\rule{0.2em}{0ex}}\mathrm{ps}/$optical spike) and with low-energy consumption ( pJ/spike). The proposed combines excitable resonant tunneling diode (RTD) element exhibiting negative differential conductance, coupled to a n...

This paper demonstrates that the presence of blank nodes in RDF data represents a problem for distributed processing of SPARQL queries. It is shown that the usual decomposition strategies from the literature will leak information—even when information derives from a single source. It is argued that this leakage, and the proper reparational measures, need to be accounted for in a formal semantic...

In a Peer-to-Peer (P2P) network, a link topology such as a ring, tree or graph describes the link structure among autonomous nodes. A node deployment model defines where and how one or more partitions of the link topology are physically running, stored and accessed. Link topology and node deployment are distinct and orthogonal concepts, and hence a node deployment model need not correspond to a...

Embedded systems often must adhere to strict size, weight, and power (SWAP) constraints and yet provide tremendous computational throughput. Increasing the difficulty of this challenge, there is a trend to utilize commercial-off-the-shelf (COTS) components in the design of such systems to reduce both total cost and time to market. Employment of COTS components also promotes standardization and ...

The recent evolution in sensor node location technology has spurred the development of a special type of in-network processing for wireless sensor networks (WSN), called spatial query processing. These queries require data from nodes within a region (called region of interest) defined by the users. The state of the art of spatial query processing considers, in general, that nodes are always on....

We present an algorithm for cluster dynamics to efficiently simulate large systems on MIMD parallel computers with large numbers of processing nodes. The method divides physical space into rectangular cells which are assigned to processing nodes and combines a serial procedure, by which clusters are labeled locally inside each cell, with a nearest neighbor relaxation process in which processing...