Browsing Informática by Issue Date 

Browsing Informática by Issue Date

Now showing items 21-40 of 497

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      P Systems with Active Membranes and Separation Rules 

      Pan, Linqiang; Ishdorj, Tseren-Onolt (Fénix Editora, 2004)
      The P systems are a class of distributed parallel computing devices of a biochemical type. In this paper, a new de¯nition ...
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      Simulating the Fredkin Gate with Energy-Based P Systems 

      Leporati, Alberto; Zandron, Claudio; Mauri, Giancarlo (Fénix Editora, 2004)
      Reversibility plays a fundamental role when the possibility to per- form computations with minimal energy dissipation is ...
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      Weak Metrics on Configurations of a P System 

      Cordón Franco, Andrés; Gutiérrez Naranjo, Miguel Ángel; Pérez Jiménez, Mario de Jesús; Riscos Núñez, Agustín (Fénix Editora, 2004)
      The evolution of a P system generates a tree of computation po- tentially in¯nite where it is very difficult to set the ...
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      A Java Simulator for Basic Transition P Systems 

      Nepomuceno Chamorro, Isabel de los Ángeles (Fénix Editora, 2004)
      In this paper, a software tool (called SimCM, from Spanish Sim- ulador de Computaci¶on con Membranas) for handling P ...
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      Size and Power of Extended Gemmating P Pystems 

      Besozzi, Daniela; Csuhaj Varjú, Erzsébet; Mauri, Giancarlo; Zandron, Claudio (Fénix Editora, 2004)
      In P systems with gemmation of mobile membranes were ex- amined. It was shown that (extended) systems with eight membranes ...
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      Tissue-like P Systems with Channel-States 

      Freund, Rudolf; Paun, Gheorghe; Pérez Jiménez, Mario de Jesús (Fénix Editora, 2004)
      We consider tissue-like P systems with states associated with the links (we call them synapses) between cells, controlling ...
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      Further Open Problems in Membrane Computing 

      Paun, Gheorghe (Fénix Editora, 2004)
      A series of open problems and research topics in membrane com- puting are pointed out, most of them suggested by recent ...
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      On P Systems with Promoters/Inhibitors 

      Ionescu, Mihai; Sburlan, Dragos (Fénix Editora, 2004)
      This article shows how the computational universality can be reached by using P systems with object rewriting context-free ...
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      An Efficient Cellular Solution for the Partition Problem 

      Gutiérrez Naranjo, Miguel Ángel; Pérez Jiménez, Mario de Jesús; Riscos Núñez, Agustín (Fénix Editora, 2004)
      Numerical problems are not very frequently addressed in the P sys- tems literature. In this paper we present an e®ective ...
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      Sequential P Systems with Unit Rules and Energy Assigned to Membranes 

      Freund, Rudolf; Leporati, Alberto; Oswald, Marion; Zandron, Claudio (Fénix Editora, 2004)
      We introduce a new variant of membrane systems where the rules are directly assigned to membranes (and not to the regions ...
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      Deductive Databases and P Systems 

      Gutiérrez Naranjo, Miguel Ángel; Rogozhin, Vladimir (Fénix Editora, 2004)
      In computational processes based on backwards chaining, a rule of the type A Ã B1; : : : ;Bn is seen as a procedure which ...
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      About P Systems with Symport/Antiport 

      Frisco, Pierluigi (Fénix Editora, 2004)
      It is proved that four membranes su±ce to P systems with minimal symport/antiport to generate all recursively enumerable ...
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      Membrane Operations in P Systems with Active Membranes 

      Alhazov, Artiom; Ishdorj, Tseren-Onolt (Fénix Editora, 2004)
      In this paper we de¯ne a general class of P systems covering some biological operations with membranes, including evolution, ...
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      Solving the BINPACKING Problem by Recognizer P Systems with Active Membranes 

      Pérez Jiménez, Mario de Jesús; Romero Campero, Francisco José (Fénix Editora, 2004)
      In this paper we present an e®ective solution to the BINPACKING problem using a family of recognizer P systems with active ...
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      (Ultimately Confluent) Parallel Multiset-Rewriting Systems with Context 

      Alhazov, Artiom; Sburlan, Dragos (Fénix Editora, 2004)
      The aim of this paper is to study the power of parallel multiset- rewriting systems with permitting context (or P systems ...
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      On the Power of Deterministic EC P Systems 

      Alhazov, Artiom (Fénix Editora, 2004)
      It is commonly believed that a signi¯cant part of the computational power of membrane systems comes from their inherent ...
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      Membrane Kauffman Networks 

      Franco, Giuditta (Fénix Editora, 2004)
      A formalization of Kauffman Boolean Networks in terms of P systems is suggested along two lines: by means of register machines and directly by means of membranes with receptors.
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      Cell Communication in Tissue P Systems and Cell Division in Population P Systems 

      Bernardini, Francesco; Gheorgue, Marian (Fénix Editora, 2004)
      Two classes of tissue P systems based on evolution communication rules are introduced, some results are proved, but many ...
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      Covering Rules in P Systems: Some Preliminary Ideas 

      Sempere, José M. (Fénix Editora, 2004)
      In this paper we propose a new kind of rules inside the regions of a P system. We have called them covering rules due to ...
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      Evolution-Communication P Systems: Time-Freeness 

      Alhazov, Artiom; Cavaliere, Matteo (Fénix Editora, 2005)
      Membrane computing is a (biologically motivated) theoretical framework of distributed parallel computing. If symbol-objects ...