Search Results - "Morales, Luis B."

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  1. 1

    A Bit-Parallel Tabu Search Algorithm for Finding Es2-Optimal and Minimax-Optimal Supersaturated Designs by Morales, Luis B., Bulutoglu, Dursun A.

    “…We prove the equivalence of two-symbol supersaturated designs (SSDs) with N (even) rows, m columns, and smax=4t+i, where i∈0,2 and t∈ℤ≥0 and resolvable…”
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  2. 2

    The maximum number of columns in E(s2) $\,E({s}^{2})$‐optimal supersaturated designs with 16 rows and smax=4 ${s}_{{\rm{\max }}}=4$ is 60 by Morales, Luis B.

    Published in Journal of combinatorial designs (01-04-2023)
    “…We show that the maximum number of columns in E(s2) $\,E({s}^{2})$‐optimal supersaturated designs (SSDs) with 16 rows and smax=4 ${s}_{{\rm{\max }}}=4$ is 60…”
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  3. 3

    SEARCH FOR EXTREMELY METAL-POOR GALAXIES IN THE SLOAN DIGITAL SKY SURVEY. II. HIGH ELECTRON TEMPERATURE OBJECTS by Almeida, J. Sánchez, Pérez-Montero, E., Morales-Luis, A. B., Muñoz-Tuñón, C., García-Benito, R., Nuza, S. E., Kitaura, F. S.

    Published in The Astrophysical journal (10-03-2016)
    “…ABSTRACT Extremely metal-poor (XMP) galaxies are defined to have a gas-phase metallicity smaller than a tenth of the solar value ( ). They are uncommon,…”
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  4. 4

    QUALITATIVE INTERPRETATION OF GALAXY SPECTRA by SANCHEZ ALMEIDA, J, TERLEVICH, R, TERLEVICH, E, CID FERNANDES, R, MORALES-LUIS, A. B

    Published in The Astrophysical journal (10-09-2012)
    “…We describe a simple step-by-step guide to qualitative interpretation of galaxy spectra. Rather than an alternative to existing automated tools, it is put…”
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  5. 5

    On E(s2)‐optimal and minimax‐optimal supersaturated designs with 20 rows and 76 columns by Morales, Luis B., Bulutoglu, Dursun A.

    Published in Journal of combinatorial designs (01-07-2018)
    “…We derive a previously unknown lower bound of 41 for the frequency of s max =8 of an E(s2)‐optimal and minimax‐optimal supersaturated design (SSD) with 20 rows…”
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  6. 6

    The maximum number of columns in supersaturated designs with smax=2 by Morales, Luis B., Bulutoglu, Dursun A., Arasu, K. T.

    Published in Journal of combinatorial designs (01-07-2019)
    “…Cheng and Tang [Biometrika, 88 (2001), pp. 1169–1174] derived an upper bound on the maximum number of columns B ( n , t ) that can be accommodated in a…”
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  7. 7

    A General Description for the Weight Distribution of Some Reducible Cyclic Codes by Vega, Gerardo, Morales, Luis B.

    Published in IEEE transactions on information theory (01-09-2013)
    “…A remarkably general result which provides the evaluation of a family of exponential sums was presented by Moisio in 2000. In this work, we use such a general…”
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  8. 8

    On the Enumeration of E(s2)-Optimal and Minimax-Optimal k-Circulant Supersaturated Designs by Morales, Luis B., Vega, Gerardo

    Published in Journal of combinatorial designs (01-04-2014)
    “…In recent years, several methods have been proposed for constructing E(s2)‐optimal and minimax‐optimal supersaturated designs (SSDs). However, until now the…”
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  9. 9

    Optimal k-circulant supersaturated designs by Gupta, Sudhir, Hisano, Katsuo, Morales, Luis B.

    “…Optimal k-circulant supersaturated designs have been constructed in literature using computer intensive methods. A systematic method of construction for…”
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  10. 10

    SYSTEMATIC SEARCH FOR EXTREMELY METAL-POOR GALAXIES IN THE SLOAN DIGITAL SKY SURVEY by Morales-Luis, A. B., Sanchez Almeida, J., Aguerri, J. A. L., Munoz-Tunon, C.

    Published in The Astrophysical journal (10-12-2011)
    “…We carry out a systematic search for extremely metal-poor (XMP) galaxies in the spectroscopic sample of Sloan Digital Sky Survey (SDSS) data release 7 (DR7)…”
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  11. 11

    METALLICITY INHOMOGENEITIES IN LOCAL STAR-FORMING GALAXIES AS A SIGN OF RECENT METAL-POOR GAS ACCRETION by Almeida, J Sanchez, Morales-Luis, A B, Munoz-Tunon, C, Elmegreen, D M, Elmegreen, B G, Mendez-Abreu, J

    Published in The Astrophysical journal (01-03-2014)
    “…We measure the oxygen metallicity of the ionized gas along the major axis of seven dwarf star-forming galaxies. Two of them, SDSSJ1647+21 and SDSSJ2238+14,…”
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  12. 12

    A statistical analysis in the BWR fuel lattice design by Casillo-Méndez, José Alejandro, Chávez, Verónica Jáuregui, Ortiz-Servin, Juan José, Montes-Tadeo, José Luis, Perusquía, Raúl, Morales, Luis B.

    Published in Annals of nuclear energy (01-04-2016)
    “…•A statistical analysis in the neutronic BWR fuel lattice design is shown.•The analysis was carried out using a sample space of 2700 fuel lattices.•Several…”
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    Huitzoctli: A system to design Control Rod Pattern for BWR’s using a hybrid method by Castillo, Alejandro, Ortiz-Servin, Juan José, Perusquía, Raúl, Morales, Luis B.

    Published in Annals of nuclear energy (01-11-2011)
    “…► The system was developed to design Control Rod Patterns for Boiling Water Reactors. ► The critical reactor core and the thermal limits were fulfilled in all…”
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  15. 15

    ON THE USE OF THE INDEX N2 TO DERIVE THE METALLICITY IN METAL-POOR GALAXIES by Morales-Luis, A B, Perez-Montero, E, Almeida, J Sanchez, Munoz-Tunon, C

    Published in The Astrophysical journal (20-12-2014)
    “…The N2 index ([NII] [lambda]6584/H alpha ) is used to determine emission line galaxy metallicities at all redshifts, including high redshift, where galaxies…”
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    A Bit-Parallel Tabu Search Algorithm for Finding E s 2 -Optimal and Minimax-Optimal Supersaturated Designs by Morales, Luis B., Bulutoglu, Dursun A.

    Published in Computational and mathematical methods (06-06-2023)
    “…We prove the equivalence of two-symbol supersaturated designs (SSDs) with N (even) rows, m columns, and s max = 4 t + i , where i ∈ 0 , 2 and t ∈ ℤ ≥ 0 and…”
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    Journal Article
  19. 19

    A Genetic Algorithm with Conformational Memories for Structure Prediction of Polypeptides by Garduño-Juárez, Ramón, Morales, Luis B.

    “…We have developed an iterative hybrid algorithm (HA) to predict the 3D structure of peptides starting from their amino acid sequence. The HA is made of a…”
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  20. 20

    BWR control rod design using tabu search by Castillo, José Alejandro, Ortiz, Juan José, Alonso, Gustavo, Morales, Luis B., del Valle, Edmundo

    Published in Annals of nuclear energy (01-05-2005)
    “…An optimization system to get control rod patterns (CRP) has been generated. This system is based on the tabu search technique (TS) and the control cell core…”
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