All Outputs (80)

Reproducing the CO-to-H2 conversion factor in cosmological simulations of Milky-Way-mass galaxies (2020)
Journal Article
Keating, L. C., Richings, A. J., Murray, N., Faucher-Giguère, C. A., Hopkins, P. F., Wetzel, A., …Orr, M. E. (2020). Reproducing the CO-to-H2 conversion factor in cosmological simulations of Milky-Way-mass galaxies. Monthly notices of the Royal Astronomical Society, 499(1), 837-850. https://doi.org/10.1093/mnras/staa2839

We present models of CO(1-0) emission from Milky-Way-mass galaxies at redshift zero in the FIRE-2 cosmological zoom-in simulations. We calculate the molecular abundances by post-processing the simulations with an equilibrium chemistry solver while ac... Read More about Reproducing the CO-to-H2 conversion factor in cosmological simulations of Milky-Way-mass galaxies.

Pressure balance in the multiphase ISM of cosmologically simulated disc galaxies (2020)
Journal Article
Gurvich, A. B., Faucher-Giguère, C. A., Richings, A. J., Hopkins, P. F., Grudić, M. Y., Hafen, Z., …Murray, N. (2020). Pressure balance in the multiphase ISM of cosmologically simulated disc galaxies. Monthly notices of the Royal Astronomical Society, 498(3), 3664-3683. https://doi.org/10.1093/mnras/staa2578

Pressure balance plays a central role in models of the interstellar medium (ISM), but whether and how pressure balance is realized in a realistic multiphase ISM is not yet well understood. We address this question by using a set of FIRE-2 cosmologica... Read More about Pressure balance in the multiphase ISM of cosmologically simulated disc galaxies.

A pulsar-based time-scale from the International Pulsar Timing Array (2019)
Journal Article
Hobbs, G., Guo, L., Caballero, R. N., Coles, W., Lee, K. J., Manchester, R. N., …Zhu, X. J. (2020). A pulsar-based time-scale from the International Pulsar Timing Array. Monthly notices of the Royal Astronomical Society, 491(4), 5951-5965. https://doi.org/10.1093/mnras/stz3071

We have constructed a new time-scale, TT(IPTA16), based on observations of radio pulsars presented in the first data release from the International Pulsar Timing Array (IPTA). We used two analysis techniques with independent estimates of the noise mo... Read More about A pulsar-based time-scale from the International Pulsar Timing Array.

The International Pulsar Timing Array: second data release (2019)
Journal Article
Perera, B. B., DeCesar, M. E., Demorest, P. B., Kerr, M., Lentati, L., Nice, D. J., …Zhu, X. J. (2019). The International Pulsar Timing Array: second data release. Monthly notices of the Royal Astronomical Society, 490(4), 4666-4687. https://doi.org/10.1093/mnras/stz2857

In this paper, we describe the International Pulsar Timing Array second data release, which includes recent pulsar timing data obtained by three regional consortia: the European Pulsar Timing Array, the North American Nanohertz Observatory for Gravit... Read More about The International Pulsar Timing Array: second data release.

Lexicon-based bot-aware public emotion mining and sentiment analysis of the Nigerian 2019 presidential election on Twitter (2019)
Journal Article
Fagbola, T. M., & Thakur, S. C. (2019). Lexicon-based bot-aware public emotion mining and sentiment analysis of the Nigerian 2019 presidential election on Twitter. International journal of advanced computer science and applications : IJACSA, 10(10), 329-336. https://doi.org/10.14569/ijacsa.2019.0101047

Online social networks have been widely engaged as rich potential platforms to predict election outcomes' in several countries of the world. The vast amount of readily-available data on such platforms, coupled with the emerging power of natural langu... Read More about Lexicon-based bot-aware public emotion mining and sentiment analysis of the Nigerian 2019 presidential election on Twitter.

News article classification using Kolmogorov complexity distance measure and artificial neural network (2019)
Journal Article
Fagbola, T. M., Thakur, C. S., & Olugbara, O. (2019). News article classification using Kolmogorov complexity distance measure and artificial neural network. International Journal of Technology, 10(4), 710-720. https://doi.org/10.14716/ijtech.v10i4.2339

News article classification is a recently growing area of interest in text classification because of its associated multiple matching categories. However, the weak reliability indices and ambiguities associated with state-of-the-art classifiers often... Read More about News article classification using Kolmogorov complexity distance measure and artificial neural network.

Can VEGFC Form Turing Patterns in the Zebrafish Embryo? (2019)
Journal Article
Wertheim, K. Y., & Roose, T. (2019). Can VEGFC Form Turing Patterns in the Zebrafish Embryo?. Bulletin of Mathematical Biology, 81(4), 1201-1237. https://doi.org/10.1007/s11538-018-00560-2

This paper is concerned with a late stage of lymphangiogenesis in the trunk of the zebrafish embryo. At 48 hours post-fertilisation (HPF), a pool of parachordal lymphangioblasts (PLs) lies in the horizontal myoseptum. Between 48 and 168 HPF, the PLs... Read More about Can VEGFC Form Turing Patterns in the Zebrafish Embryo?.

Investigating the effect of implementation languages and large problem sizes on the tractability and efficiency of sorting algorithms (2019)
Journal Article
Fagbola, T. M., & Thakur, S. C. (2019). Investigating the effect of implementation languages and large problem sizes on the tractability and efficiency of sorting algorithms. International Journal of Engineering Research & Technology, 12(2), 196-203

Sorting is a data structure operation involving a re-arrangement of an unordered set of elements with witnessed real life applications for load balancing and energy conservation in distributed, grid and cloud computing environments. However, the rear... Read More about Investigating the effect of implementation languages and large problem sizes on the tractability and efficiency of sorting algorithms.

TERMHIGEN – A hybrid metaheuristic technique for solving large-scale vehicle routing problem with time windows (2019)
Journal Article
Fagbola, T. M., & Thakur, S. C. (2019). TERMHIGEN – A hybrid metaheuristic technique for solving large-scale vehicle routing problem with time windows. International Journal of Engineering Research & Technology, 12(2), 180-195

Vehicle Routing Problem with Time Windows (VRPTW) involves traversing a coordinated set of vehicular paths such that a set of customers is visited once within a given time-stamped boundary. VRPTW poses a great challenge to logistics distribution and... Read More about TERMHIGEN – A hybrid metaheuristic technique for solving large-scale vehicle routing problem with time windows.

Resolution-aware Ensemble of Pose and Illumination-Invariant Feature Descriptors for Face Identification in Unconstrained Videos (2019)
Journal Article
Fagbola, T. M., & Thakur, C. S. (2019). Resolution-aware Ensemble of Pose and Illumination-Invariant Feature Descriptors for Face Identification in Unconstrained Videos. International Journal of Engineering Research & Technology, 12(12), 3114-3126

The recurring global security insurgence has posed new opportunities for massive deployment of Video Surveillance Systems (VSS). However, videos captured by such systems suffer characterized Low Resolution (LR), varying illumination and pose challeng... Read More about Resolution-aware Ensemble of Pose and Illumination-Invariant Feature Descriptors for Face Identification in Unconstrained Videos.

Rab-KAMS: A reproducible knowledge management system with visualization for preserving Rabbit Farming and Production Knowledge (2019)
Journal Article
Fagbola, T. M., Thakur, S. C., & Olugbara, O. (2019). Rab-KAMS: A reproducible knowledge management system with visualization for preserving Rabbit Farming and Production Knowledge. International journal of advanced computer science and applications : IJACSA, 10(1), 263-273. https://doi.org/10.14569/IJACSA.2019.0100135

The sudden rise in rural-to-urban migration has been a key challenge threatening food security and most especially the survival of Rabbit Farming and Production (RFP) in Sub-Saharan Africa. Currently, significant knowledge of RFP is going into extinc... Read More about Rab-KAMS: A reproducible knowledge management system with visualization for preserving Rabbit Farming and Production Knowledge.

A detailed study of giant pulses from PSR B1937+21 using the Large European Array for Pulsars (2018)
Journal Article
McKee, J. W., Stappers, B. W., Bassa, C. G., Chen, S., Cognard, I., Gaikwad, M., …Zhu, W. W. (2019). A detailed study of giant pulses from PSR B1937+21 using the Large European Array for Pulsars. Monthly notices of the Royal Astronomical Society, 483(4), 4784-4802. https://doi.org/10.1093/mnras/sty3058

We have studied 4265 giant pulses (GPs) from the millisecond pulsar B1937+21; the largest-ever sample gathered for this pulsar, in observations made with the Large European Array for Pulsars. The pulse energy distribution of GPs associated with the i... Read More about A detailed study of giant pulses from PSR B1937+21 using the Large European Array for Pulsars.

Tests of gravitational symmetries with pulsar binary J1713+0747 (2018)
Journal Article
Zhu, W. W., Desvignes, G., Wex, N., Caballero, R. N., Champion, D. J., Demorest, P. B., …Tiburzi, C. (2019). Tests of gravitational symmetries with pulsar binary J1713+0747. Monthly notices of the Royal Astronomical Society, 482(3), 3249-3260. https://doi.org/10.1093/mnras/sty2905

Symmetries play a fundamental role in modern theories of gravity. The strong equivalence principle (SEP) constitutes a collection of gravitational symmetries which are all implemented by general relativity. Alternative theories, however, are generall... Read More about Tests of gravitational symmetries with pulsar binary J1713+0747.

Studying the Solar system with the International Pulsar Timing Array (2018)
Journal Article
Caballero, R. N., Guo, Y. J., Lee, K. J., Lazarus, P., Champion, D. J., Desvignes, G., …Zhu, W. W. (2018). Studying the Solar system with the International Pulsar Timing Array. Monthly notices of the Royal Astronomical Society, 481(4), 5501-5516. https://doi.org/10.1093/MNRAS/STY2632

Pulsar-timing analyses are sensitive to errors in the Solar-system ephemerides (SSEs) that timing models utilize to estimate the location of the Solar-system barycentre, the quasi-inertial reference frame to which all recorded pulse times-of-arrival... Read More about Studying the Solar system with the International Pulsar Timing Array.

The multiphase circumgalactic medium traced by low metal ions in EAGLE zoom simulations (2018)
Journal Article
Oppenheimer, B. D., Schaye, J., Crain, R. A., Werk, J. K., & Richings, A. J. (2018). The multiphase circumgalactic medium traced by low metal ions in EAGLE zoom simulations. Monthly notices of the Royal Astronomical Society, 481(1), 835-859. https://doi.org/10.1093/mnras/sty2281

We explore the circumgalactic metal content traced by commonly observed low ion absorbers, including C II, SiII, SiIII, SiIV, and MgII. We use a set of cosmological hydrodynamical zoom simulations run with the EAGLE model and including a non-equilibr... Read More about The multiphase circumgalactic medium traced by low metal ions in EAGLE zoom simulations.

Improving timing sensitivity in the microhertz frequency regime: limits from PSR J1713+0747 on gravitational waves produced by supermassive black hole binaries (2018)
Journal Article
Perera, B. B., Stappers, B. W., Babak, S., Keith, M. J., Antoniadis, J., Bassa, C. G., …Taylor, S. R. (2018). Improving timing sensitivity in the microhertz frequency regime: limits from PSR J1713+0747 on gravitational waves produced by supermassive black hole binaries. Monthly notices of the Royal Astronomical Society, 478(1), 218-227. https://doi.org/10.1093/mnras/sty1116

We search for continuous gravitational waves (CGWs) produced by individual supermassive black hole binaries in circular orbits using high-cadence timing observations of PSR J1713+0747. We observe this millisecond pulsar using the telescopes in the Eu... Read More about Improving timing sensitivity in the microhertz frequency regime: limits from PSR J1713+0747 on gravitational waves produced by supermassive black hole binaries.

Temporal variations in scattering and dispersion measure in the Crab Pulsar and their effect on timing precision (2018)
Journal Article
McKee, J. W., Lyne, A. G., Stappers, B. W., Bassa, C. G., & Jordan, C. A. (2018). Temporal variations in scattering and dispersion measure in the Crab Pulsar and their effect on timing precision. Monthly notices of the Royal Astronomical Society, 479(3), 4216-4224. https://doi.org/10.1093/mnras/sty1727

We have measured variations in scattering time-scales in the Crab Pulsar over a 30-yr period, using observations made at 610 MHz with the 42-ft telescope at Jodrell Bank Observatory. Over more recent years, where regular Lovell Telescope observations... Read More about Temporal variations in scattering and dispersion measure in the Crab Pulsar and their effect on timing precision.

Radiative cooling of swept-up gas in AGN-driven galactic winds and its implications for molecular outflows (2018)
Journal Article
Richings, A. J., & Faucher-Giguère, C. A. (2018). Radiative cooling of swept-up gas in AGN-driven galactic winds and its implications for molecular outflows. Monthly notices of the Royal Astronomical Society, 478(3), 3100-3119. https://doi.org/10.1093/MNRAS/STY1285

We recently used hydrochemical simulations to demonstrate that molecular outflows observed in luminous quasars can be explained by molecule formation within the active galactic nucleus (AGN) wind. However, these simulations cover a limited parameter... Read More about Radiative cooling of swept-up gas in AGN-driven galactic winds and its implications for molecular outflows.

Development of mobile-interfaced machine learning-based predictive models for improving students' performance in programming courses (2018)
Journal Article
Matthew, F. T., Adepoju, A. I., Ayodele, O., Olumide, O., Olatayo, O., Adebimpe, E., …Funmilola, E. (2018). Development of mobile-interfaced machine learning-based predictive models for improving students' performance in programming courses. International journal of advanced computer science and applications : IJACSA, 9(5), 105-115. https://doi.org/10.14569/IJACSA.2018.090514

Student performance modelling (SPM) is a critical step to assessing and improving students' performances in their learning discourse. However, most existing SPM are based on statistical approaches, which on one hand are based on probability, depictin... Read More about Development of mobile-interfaced machine learning-based predictive models for improving students' performance in programming courses.

The origin of fast molecular outflows in quasars: Molecule formation in AGN-driven galactic winds (2017)
Journal Article
Richings, A. J., & Faucher-Giguère, C. A. (2018). The origin of fast molecular outflows in quasars: Molecule formation in AGN-driven galactic winds. Monthly notices of the Royal Astronomical Society, 474(3), 3673-3699. https://doi.org/10.1093/mnras/stx3014

We explore the origin of fast molecular outflows that have been observed in active galactic nuclei (AGNs). Previous numerical studies have shown that it is difficult to create such an outflow by accelerating existing molecular clouds in the host gala... Read More about The origin of fast molecular outflows in quasars: Molecule formation in AGN-driven galactic winds.