Now showing items 381-400 of 2239

    • Convergent evolution of modularity in metabolic networks through different community structures 

      Zhou, Wanding; Nakhleh, Luay (2012)
      Background: It has been reported that the modularity of metabolic networks of bacteria is closely related to the variability of their living habitats. However, given the dependency of themodularity score on the community ...
    • Cooperative communication over two-way channels 

      Steger, Christopher B. (2008)
      In this thesis, we define and analyze communication scenarios in which the source and destination cooperate across noncoherent two-way fading channels. As in practical communication systems, we constrain the bandwidth and ...
    • Cooperative Communications in the Fading Channel 

      Ahmed, Nasir; Aazhang, Behnaam (2005-03-01)
      Cooperative coding is a communication paradigm that pools distributed resources of different nodes in a network, such that the nodes act like a collaborative system instead of greedy adversarial participants. Cooperation ...
    • COOPERATIVE COMMUNICATIONS: Fundamental Limits and Practical Implementation 

      Chakrabarti, Arnab; Sabharwal, Ashutosh; Aazhang, Behnaam (2006-01-01)
      This chapter summarizes theoretically achievable gains and the construction of practical codes for user-cooperation. Most of these results relate to the relay channel, which is a three-terminal channel that captures the ...
    • Cooperative Partial Detection for MIMO Relay Networks 

      Amiri, Kiarash (2011)
      Cooperative communication has recently re-emerged as a possible paradigm shift to realize the promises of the ever increasing wireless communication market; how- ever, there have been few, if any, studies to translate ...
    • Cooperative Partial Detection for MIMO Relay Networks 

      Amiri, Kiarash (2011)
      Cooperative communication has recently re-emerged as a possible paradigm shift to realize the promises of the ever increasing wireless communication market; however, there have been few, if any, studies to translate ...
    • Cooperative Partial Detection Using MIMO Relays 

      Amiri, Kiarash; Wu, Michael; Cavallaro, Joseph R.; Lilleberg, Jorma (2011-10-01)
      Using multiple-input multiple-output (MIMO) relays in cooperative communication improves the data rate and reliability of the communication. The MIMO transmission, however, requires considerable resources for the detection ...
    • Cooperative Strategies for Near-Optimal Computation in Wireless Networks 

      Nokleby, Matthew (2013-07-24)
      Computation problems, such as network coding and averaging consen- sus, have become increasingly central to the study of wireless networks. Network coding, in which intermediate terminals compute and forward functions of ...
    • Coordination and Interference in 802.11 Networks: Inference, Analysis and Mitigation 

      Magistretti, Eugenio (2013-09-16)
      In the last decade, 802.11 wireless devices data-rates have increased by three orders of magnitude, while communications experiencing low throughput are still largely present. Such throughput loss is a fundamental problem ...
    • CORDIC Arithmetic for an SVD Processor 

      Cavallaro, Joseph R.; Luk, Franklin T. (1988-06-20)
      Arithmetic issues in the calculation of the Singular Value Decomposition (SVD) are discussed. Traditional algorithms using hardware division and square root are replaced with the special purpose CORDIC algorithms for ...
    • CORDIC Arithmetic for an SVD Processor 

      Cavallaro, Joseph R.; Luk, Franklin T. (1987-05-01)
      Arithmetic issues in the calculation of the Singular Value Decomposition (SVD) are discussed. Traditional algorithms using hardware division and square root are replaced with the special purpose CORDIC algorithms for ...
    • A CORDIC Processor Array for the SVD of a Complex Matrix 

      Cavallaro, Joseph R.; Elster, Anne C. (1991)
      Matrix factorizations are important in many real-time signal processing applications. In order to improve the performance of these algorithms, special-purpose VLSI processor arrays are being developed. Recently, the ...
    • Coronary arterial dynamics computation with medical-image-based time-dependent anatomical models and element-based zero-stress state estimates 

      Takizawa, Kenji; Torii, Ryo; Takagi, Hirokazu; Tezduyar, Tayfun E.; Xu, Xiao Y. (2014)
      We propose a method for coronary arterial dynamics computation with medical-image-based time-dependent anatomical models. The objective is to improve the computational analysis of coronary arteries for better understanding ...
    • CORT: Classification Or Regression Trees 

      Scott, Clayton; Willett, Rebecca; Nowak, Robert David (2003-06-20)
      In this paper we challenge three of the underlying principles of CART, a well know approach to the construction of classification and regression trees. Our primary concern is with the penalization strategy employed to prune ...
    • CORT: Classification Or Regression Trees 

      Scott, Clayton; Willett, Rebecca; Nowak, Robert David (2003-04-20)
      In this paper we challenge three of the underlying principles of CART, a well know approach to the construction of classification and regression trees. Our primary concern is with the penalization strategy employed to prune ...
    • Cost-effectiveness analysis of a low-cost bubble CPAP device in providing ventilatory support for neonates in Malawi - a preliminary report 

      Chen, Ariel; Deshmukh, Ashish A.; Richards-Kortum, Rebecca; Molyneux, Elizabeth; Kawaza, Kondwani; Cantor, Scott B. (2014)
      A low-cost bubble continuous positive airway pressure (bCPAP) device has been shown to be an excellent clinical alternative to nasal oxygen for the care of neonates with respiratory difficulty. However, the delivery of ...
    • Coupling between feedback loops in autoregulatory networks affects bistability range, open-loop gain and switching times 

      Tiwari, Abhinav; Igoshin, Oleg A (2012)
      Biochemical regulatory networks governing diverse cellular processes such as stress-response, differentiation and cell cycle often contain coupled feedback loops. We aim at understanding how features of feedback architecture, ...
    • Coupling the modules of EMT and stemness: A tunable ‘stemness window’ model 

      Jolly, Mohit Kumar; Jia, Dongya; Boareto, Marcelo; Mani, Sendurai A.; Pienta, Kenneth J.; Ben-Jacob, Eshel; Levine, Herbert (2015)
      Metastasis of carcinoma involves migration of tumor cells to distant organs and initiate secondary tumors. Migration requires a complete or partial Epithelial-to-Mesenchymal Transition (EMT), and tumor-initiation requires ...
    • Covariant Time Frequency Representations Through Unitary Equivalence 

      Baraniuk, Richard G. (1996-03-01)
      We propose a straightforward characterization of all quadratic time-frequency representations covariant to an important class of unitary signal transforms (namely, those having two continuous-valued parameters and an ...
    • Critical Uncertainties and Gaps in the Environmental- and Social-Impact Assessment of the Proposed Interoceanic Canal through Nicaragua 

      Huete-Pérez, Jorge A.; Ortega-Hegg, Manuel; Urquhart, Gerald R.; Covich, Alan P.; Vammen, Katherine; Rittmann, Bruce E.; Miranda, Julio C.; Espinoza-Corriols, Sergio; Acevedo, Adolfo; Acosta, María L.; Gómez, Juan P.; Brett, Michael T.; Hanemann, Michael; Härer, Andreas; Incer-Barquero, Jaime; Joyce, Frank J.; Lauer, J. Wesley; Maes, Jean Michel; Tomson, Mason B.; Meyer, Axel; Montenegro-Guillén, Salvador; Whitlow, W. Lindsay; Schnoor, Jerald L.; Alvarez, Pedro J.J. (2016)
      The proposed interoceanic canal will connect the Caribbean Sea with the Pacific Ocean, traversing Lake Nicaragua, the major freshwater reservoir in Central America. If completed, the canal would be the largest infrastruc ...