REPORT DOCUMENTATION PAGE Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing this collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to
This paper presents a software application, DasPsimulator created in Java. This is a simulation model similar to SimCm [1]. While SimCm is limited to its capability to simulate only the P dissolution operation, the DasPsimulator is capable of simulating Membrane Division, Membrane Creation and Membrane String Replication operations. This is a first step to cross the interface between simulation and a Distributed implementation of P Systems able to capture the parallelism existing in the membrane computing area. The tool is user friendly, allowing the user to follow the evolution of a P system in a visual way. The simulator can be used to perform closer inspection of P system theory by the advanced researcher and it can also be helpful to individuals interested in learning and understanding how P systems work.
Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. SPONSOR/MONITOR'S ACRONYM(S) 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)Air Force Research Laboratory/IFTC 525 Brooks Rd Rome New York 13441-4505 SPONSORING/MONITORING AGENCY REPORT NUMBER AFRL-IF-RS-TR-2006-242 DISTRIBUTION AVAILABILITY STATEMENT APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED. PA#06-497 SUPPLEMENTARY NOTES ABSTRACTMembrane Computing (MC) is a branch of Natural Computing, which abstracts from the structure and the functioning of living Cells. The concept was introduced by Gheorghe Paun of the Romanian Academy, Romania, in the late nineties (14,15). Membrane computing models are commonly known as P (Priority) Systems. These systems perform distributed parallel computing, processing multi-sets of objects synchronously, in compartments delimited by a membrane structure. This report describes a software application, DasPsimulator created in Java. This is a simulation model similar to SimCm (4).While SimCm is limited to its capability to simulate only the P dissolution operation, the DasPsimulator is capable of simulating Membrane Division, Membrane Creation and Membrane String Replication operations. This is a first step to cross the interface between simulation and a Distributed implementation of P Systems able to capture the parallelism existing in the membrane computing area. The tool is user friendly, allowing the user to follow the evolution of a P system in a visual way. The simulator can be used to perform closer inspection of P system theory by the advanced researcher and it can also be helpful to individuals interested in learning and understanding how P systems work.
REPORT DOCUMENTATION PAGE Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing this collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to
Dynamic mobile ad hoc networks, such as those encountered on the battlefield or on today's electronic roadway-the Internet, would benefit from a secure selforganizing mobile network infrastructure to gather and disseminate real-time information. In a large commercial or noncommercial network it is conceivable that a substantial number of highly mobile data sources and users may be scattered over a wide area with little or no fixed network support. These unstructured mobile ad-hoc networks (MANET) consist of a wide variety of information sources and require the use of distributed services and specialized networking protocols to address the challenges of mobility, dispersion, dynamic reconfiguration along with enhanced security systems to prevent against attack or intrusion. Our work described in this paper introduces the Secure Architecture For Extensible Mobile Internet Transport Services architecture based on three distributed services referred to as lookup, compositional and adaptation services. By incorporating multiple security mechanisms, it is possible to secure application specific network and system services defined in a distributed mobile ad-hoc network.
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