Results 261 to 270 of about 10,649,124 (304)
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2011
Several molecular systems form large-scale objects. One would like to understand their assembly and how this assembly is regulated. As a first step, we investigate the phase transition structure of a class of bipartite cooperative assembly systems. We characterize which of these systems have a (probabilistic) equilibrium and find an explicit form for ...
Vincent Danos +2 more
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Several molecular systems form large-scale objects. One would like to understand their assembly and how this assembly is regulated. As a first step, we investigate the phase transition structure of a class of bipartite cooperative assembly systems. We characterize which of these systems have a (probabilistic) equilibrium and find an explicit form for ...
Vincent Danos +2 more
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On the Cooperative and Non-Cooperative Relaying in WiMAX Communication Systems
2010 IEEE 71st Vehicular Technology Conference, 2010This paper deals with relaying techniques in WiMAX communication system. Different cooperative and non-cooperative schemes are investigated and compared over a complete 802.16 WiMAX-OFDM chain. Realistic channel impulse responses are used. Measurement of some propagation conditions feeds the WINNER channel model in order to generate the channel ...
Khalil, Fakih +4 more
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Cooperative regions and partner choice in coded Cooperative systems
IEEE Transactions on Communications, 2006User cooperation is an efficient approach to obtain diversity in both centralized and distributed wireless networks. In this paper, we consider a coded cooperative system under quasi-static Rayleigh fading and investigate the partner-choice problem.
Zinan Lin 0003 +2 more
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The effect of cooperation level in cooperative systems
IEEE/Sarnoff Symposium on Advances in Wired and Wireless Communication, 2005., 2006The performance of a cooperative coded system in terms of cooperation level for various values of inter-user channel quality, average SNR, and the type of detection for a (7,4) Hamming code is presented. As concluded from simulations, for each inter-user channel quality, the optimum cooperation level is different.
E. Karami, M. Shiva, M. Abtahi
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Multimodal cooperation with the DenK system
1998In this chapter we present the DenK project, a long-term effort where the aim is to build a generic cooperative human-computer interface combining multiple input and output modalities. We discuss the view on human-computer interaction that underlies the project and the emerging DenK system.
Bunt, H.C. +4 more
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Coded Cooperation in OFDMA Systems
2006 40th Annual Conference on Information Sciences and Systems, 2006A novel time-frequency cooperative communication strategy is proposed for coded OFDMA system over quasi-static frequency-selective Rayleigh fading. To take advantage of the frequency dispersion, each user transmits his partner's and his own data on different subcarriers spreading over the entire available bandwidth.
Jun Niu, I-Tai Lu
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Cooperativity and Allostery in RNA Systems
2020Allostery is among the most basic biological principles employed by biological macromolecules to achieve a biologically active state in response to chemical cues. Although initially used to describe the impact of small molecules on the conformation and activity of protein enzymes, the definition of this term has been significantly broadened to describe
Alla, Peselis, Alexander, Serganov
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An architecture for cooperative information systems
Knowledge-Based Systems, 2003With the fast growth of the information space in the Internet and large-scale Intranet computing environments, a new design paradigm is required for information systems. In such environments, the amount, the dynamic, the heterogeneity and the distributed nature of the information make it difficult for a user to locate and retrieve the desired ...
Elhadi M. Shakshuki +2 more
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The evolution of cooperation in asymmetric systems
Science China Life Sciences, 2010Explaining "Tragedy of the Commons" of evolution of cooperation remains one of the greatest problems for both biology and social science. Asymmetrical interaction, which is one of the most important characteristics of cooperative system, has not been sufficiently considered in the existing models of the evolution of cooperation.
RuiWu, Wang, Lei, Shi
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Cooperative games and multiagent systems
The Knowledge Engineering Review, 2013Abstract Forming coalitions is a generic means for cooperation: people, robots, web services, resources, firms; they can all improve their performance by joining forces. The use of coalitions has been successful in domains such as task allocations, sensor networks, and electronic marketplaces. Forming efficient coalitions requires the
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