The Object Naming Service (ONS) is a central lookup service of the EPCglobal Network. Its main function is the address retrieval of manufacturer information services for a given Electronic Product Code (EPC) identifier. This allows dynamic and globally distributed information sharing for items equipped with RFID tags compatible to EPCglobal standards. However, unlike in the DNS system, the ONS ...

RFID (Radio Frequency IDentification) technology bridges two technologies in the area of Information and Communication Technologies (ICT), namely Product Code (PC) technology and Wireless technology. This broad-based rapidly expanding technology impacts business, environment and society. The operating principle of an RFID system is as follows. The reader starts a communication process by radiat...

JORDI MESEGUER (1), JOSEP M. MIRATS-TUR (1) ,GABRIELA CEMBRANO (2) (1), EDUARD BONADA (1), VICENÇ PUIG (2) (3) (1): CETaqua, Water Technology Center, Carr. Esplugues 75,Cornellà de Llobregat, 08940, Spain. Phone: +34-93-3124829, fax : +34 93 312 48 01 / e-mail: [email protected] (2): Institut de Robòtica i Informàtica Industrial(CSIC-UPC), Spain. (3): Dpt, Enginyeria de Sistemes, Automàtica...

The main idea behind UPC is that users should be able to view the underlying machine model as a collection of threads operating in a common global address [5]. In such an environment fine-grain algorithms are preferred to coarse-grain algorithms since they are easier to code. While such algorithms, written in UPC, should have similar performance in shared memory environments compared to OpenMP,...

A total perfect code in a graph is a subset of the graph’s vertices with the property that each vertex in the graph is adjacent to exactly one vertex in the subset. We prove that the tensor product of any number of simple graphs has a total perfect code if and only if each factor has a total perfect code.

The paper tackles the topic of determining the cost of innovation in software development projects. Innovation can be achieved either in a planned or unplanned manner. The paper approaches the scenarios were innovation is planned for. As a starting point an innovative software development project is analyzed. The project is depicted step by step as it was implemented, from inception to delivery...

[1] This work describes the main effects that have to be taken into account to model the sea surface emission at L-band, and the existing approaches to perform the sea surface salinity retrieval from multiangular radiometric measurements. This manuscript reviews the activities carried out in these fields during the past years by the Universitat Politècnica de Catalunya (UPC) in collaboration wi...

This paper uses Nielsen Homescan data at the Universal Product Code-transaction level to identify how cigarette taxes are passed through to consumer prices in order to determine how the supply and demand-side split the excess burden of taxation. We find that these excise taxes are less than fully passed through to consumer prices. Using information on consumer location and the location of purch...

Deterministic replay of parallel execution and communication operations is required both by HPC debuggers and resilience mechanisms. Despite its potential performance advantages, the inherent nondeterminism present in one-sided communication makes replaying difficult. The essential problem is that the readers of updated shared data do not have any information on which remote threads produced th...

In QoS-enabled network, for example ATM, connections which exhibit rapidly changing traffic characteristics, renegotiating the bandwidth requirements becomes inevitable. The sender initiates renegotiation whenever bandwidth requirements change. If the newly requested bandwidth is not granted, the sender keeps on invoking the follow-up renegotiations with some frequency. Polling the network too ...