Single Link Network
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Frequency Domain Interleaving for Dense WDM Passive Optical Network
Abstract In this work, we introduce a new concept of frequency interleaving applied to passive optical networks based in Dense Wavelength Division Multiplexing (DWDM). In order to explore colorless ONUs approach, a single and centralized optical source is used to create the interleaved wavelengths for the downstream and upstream path. In this case, frequency
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 19/06/2019
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2. COLUMN GENERATION BASED ALGORITHMS FOR THE CAPACITATED MULTI-LAYER NETWORK DESIGN WITH UNSPLITTABLE DEMANDS
ABSTRACT We investigate a variant of the Multi-Layer Network Design problem where minimum cost capacities have to be installed upon a virtual layer in such a way that (i) a set of traffic demands can be routed AND (ii) each capacity (subband) is assigned a route in the physical layer. The traffic demands cannot be splitted along several paths (nor even sever
Pesqui. Oper.. Publicado em: 2017-09
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3. A study on the design of networks in competitive environments / Um estudo sobre o dimensionamento de redes em ambientes competitivos
Esta dissertação propõe um estudo de um novo modelo para o dimensionamento de redes baseadas em comutação de circuitos, tais como as redes óticas roteadas por comprimento de onda. O novo modelo é projetado para dar suporte a diversas estratégias de negócios da operadora em um mercado competitivo. Primeiramente o caso do monopólio é analisado, comp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/03/2010
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4. Funcionalidades basicas para um sistema interativo de sequenciamento em plantas multiproposito
This thesis presents the development of a scheduling interactive for multipurpose batch plants. Real scheduling problems have multiobjective characteristics. In this work the interactive system uses a single objective cost unction and leaves the user responsible for obtaining a good compromise between comfliting objectives.The model used in the optimization
Publicado em: 1998
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5. Prototyping an institutional IAIMS/UMLS information environment for an academic medical center.
The paper describes a prototype information environment designed to link network-based information resources in an integrated fashion and thus enhance the information capabilities of an academic medical center. The prototype was implemented on a single Macintosh computer to permit exploration of the overall "information architecture" and to demonstrate the v
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6. Characterizing the use of health care services delivered via computer networks.
OBJECTIVE: Evaluators must develop methods to characterize the use of the rapidly proliferating electronic networks that link patients with health services. In this article the 4-S framework is proposed for characterizing the use of health services delivered via computer networks. The utility of the 4-S framework is illustrated using data derived from a comp
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7. The structural distribution of cooperative interactions in proteins: Analysis of the native state ensemble
Cooperative interactions link the behavior of different amino acid residues within a protein molecule. As a result, the effects of chemical or physical perturbations to any given residue are propagated to other residues by an intricate network of interactions. Very often, amino acids “sense” the effects of perturbations occurring at very distant location
The National Academy of Sciences.
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8. Single Clonal Origin of a High Proportion of Legionella pneumophila Serogroup 1 Isolates from Patients and the Environment in the Area of Paris, France, over a 10-Year Period
Arbitrarily primed PCR with three primers and pulsed-field gel electrophoresis were used to characterize a set of 75 clinical Legionella pneumophila serogroup 1 isolates, with no apparent epidemiological link, obtained from 24 hospitals in Paris, France, from 1987 to 1997. Unexpectedly, 25 clinical isolates from 15 hospitals had an identical profile (termed
American Society for Microbiology.
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9. Lhx2 links the intrinsic and extrinsic factors that control optic cup formation
A crucial step in eye organogenesis is the transition of the optic vesicle into the optic cup. Several transcription factors and extracellular signals mediate this transition, but whether a single factor links them into a common genetic network is unclear. Here, we provide evidence that the LIM homeobox gene Lhx2, which is expressed in the optic neuroepithel
Company of Biologists.
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10. Cellular signaling by an agonist-activated receptor/Gs alpha fusion protein.
The consequences of agonist-dependent activation of guanine nucleotide-binding protein (G protein)-coupled receptors vary from cell to cell, depending on a complex network of regulations between components of the signaling cascade. Specific interactions between receptors, G proteins, and effectors are difficult to analyze in intact cells. Engineering of rece
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11. Affinity of alpha-actinin for actin determines the structure and mechanical properties of actin filament gels.
Proteins that cross-link actin filaments can either form bundles of parallel filaments or isotropic networks of individual filaments. We have found that mixtures of actin filaments with alpha-actinin purified from either Acanthamoeba castellanii or chicken smooth muscle can form bundles or isotropic networks depending on their concentration. Low concentratio
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12. Two Arginine Repressors Regulate Arginine Biosynthesis in Lactobacillus plantarum
The repression of the carAB operon encoding carbamoyl phosphate synthase leads to Lactobacillus plantarum FB331 growth inhibition in the presence of arginine. This phenotype was used in a positive screening to select spontaneous mutants deregulated in the arginine biosynthesis pathway. Fourteen mutants were genetically characterized for constitutive arginine
American Society for Microbiology.