Research Articles
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Perturbations with bulk viscosity in modified chaplygin gas cosmology
(arXiv, 2024)In the present work, we investigate cosmological perturbations of viscous modified chaplygin gas model. Using 1 + 3 covariant formalism, we define covariant and gauge invariant gradient variables, which after the application ... -
Design and simulation of a smart master switch system based on multi‑input XOR logic gate
(Discover Electronics, 2024)Mechanical switches have been the conventional way of controlling electrical energy in different electrical systems such as: lighting systems, socket systems, and circuit breakers, especially in domestic, hospital, and ... -
Investigating Security Awareness and Incident Reporting levels at Mbarara University of Science and Technology
(Indonesian Journal of Innovation and Applied Sciences (IJIAS), 2024)Higher learning institutions confront heightened cyber threats due to the value of their data, necessitating a robust security culture. In addition to cyber threats, various security incidents cause danger to devices and ... -
Use of Astronomy as a tool to improve gender balance in Tertiary Institutions
(IAU General Assembly, 2024)The number of women in the science discipline is still low in Uganda. In the case of Mbarara University of Science and Technology (MUST), the percentage of bachelor degrees going to ladies in physics and mathematics is ... -
A review of progress on torrefaction, pyrolysis and briquetting of banana plant wastes for biofuels
(Biomass Conversion and Biorefinery, 2024)The banana value chain produces over 4 tonnes of waste biomass for every tonne of bananas harvested, including leaves, pseu dostems, peels, rejected fruits, rhizomes, and empty fruit bunches. With rising fossil fuel costs ... -
Spectral properties of sub-kilometer-scale equatorial irregularities as seen by the Swarm satellites
(Advances in Space Research, 2023)Abstract The faceplates on-board the Swarm satellites have provided high-resolution measurements of electron density at a frequency of 16 Hz along the satellite paths. The 16-Hz electron density data from Swarm were ... -
Validation of equatorial electrojet derived from Swarm observations using ground based magnetometers
(Advances in Space Research, 2023)This paper presents the analysis of the Equatorial electrojet (EEJS) and Counter equatorial electrojet (CEJS) at quiet times (Kp63) deduced from the absolute scalar magnetometers (ASM) of the Swarm satellites. The EEJS and ... -
The Distance and Peculiar Velocity of the Norma Cluster (ACO3627) Using the Near-infrared J- and Ks-band Fundamental Plane Relations
(The Astrophysical Journal, 2021)We report distance measurements for the Norma cluster based on the near-infrared J- and Ks-band fundamental plane (FP) relations. Our simultaneous J- and Ks-band photometry analyses were performed using 31 early-type ... -
Relationship between the Traffic Parameters and Road Traffic Accidents using Fuzzy Logic Designer in Matlab: A Case Study of Uganda’s Road Traffic Accident
(International Journal of Artificial Intelligence and Mechatronics, 2021)Road traffic accidents in Uganda continue to increase with increasing parameters like population, cars owned. The accidents mainly increase due to driver errors. Strictness on the driving lessons in driving schools have ... -
Densification of raw and torrefied biomass: A review
(Biomass and Bioenergy, 2024)Densification and torrefaction are potential technologies to valorize lignocellulosic residues into cleaner and sustainable alternative energy carriers for domestic, institutional, commercial and industrial thermal energy ... -
Determination of K4000 of potential blazar candidates among EGRET unidentified gamma-ray sources
(Proceedings of the International Astronomical Union, 2019)Blazars are radio-loud Active Galactic Nuclei (AGN) with relativistic jets oriented towards the observer’s line-of-sight. Based on their optical spectra, blazars may be classified as flat-spectrum radio quasars (FSRQs) or ... -
On covariant perturbations with scalar field in modified Gauss–Bonnet gravity
(The European Physical Journal, 2024)We investigate cosmological perturbations of f (G) gravity in the presence of a scalar field. Using the 1 + 3 covariant formalism, we present the energy over density perturbation equations responsible for large scale structure ... -
Effect of problem-based learning on students’ problem-solving ability to learn physics
(Physics Education, 2023)A learner’s success is supported by the ability to understand real-world problems. This study aimed to examine the effect of problem-based learning on problem-solving ability in the teaching and learning of physics. The ... -
Social Influence on the Enrollment of Female Students in Physics in Ugandan Educational Institutions
(In AIP Conference Proceedings, 2023)Uganda has nine operational public universities offering degrees in sciences including physics. Only four of these universities offer graduate-level physics degrees. In this paper, we examine the gender gap in enrollment ... -
Star formation of far-IR AGN and non-AGN galaxies in the green valley: possible implication of AGN positive feedback
(Monthly Notices of the Royal Astronomical Society, 2017)In this paper we present the star formation properties of Isubaru ≤ 23 X-ray detected active galactic nucleus (AGN) and non-AGN galaxies in the green valley with far-infrared (FIR) emission, using data from the COSMOS ... -
The Status of Space Science and Astrophysics Education in Uganda
(2023)Most developing countries have embarked on the expansion of their industrial base, modernisation of Agriculture, expansion of energy resources, exploration and exploitation of mineral resources -
Analysis of ionospheric storm‑time effects over the East African sector during the 17 March 2013 and 2015 geomagnetic storms
(Earth, Planets and Space, 2023)An analysis of the mechanisms that caused the storm-time effects during two geomagnetic storms that occurred on 17 March 2013 and 2015 is presented. We used Global Navigation Satellite System (GNSS) derived Total Electron ... -
University students dataset related to achievement, classroom practices, perceptions and attitudes of multimediabased learning quantum physics
(F1000Research, 2023)This dataset presents data collected to assess teaching and learning of quantum physics at the University of Rwanda - College of Education (UR-CE), Rwanda. Data were collected between August and November 2019 as the baseline, ... -
Kinetics of maize cob and bean straw pyrolysis and combustion
(Heliyon, 2023)Kinetic studies are important for the design and optimisation of thermochemical processes. This study involved analysis of the pyrolysis and combustion behaviour of the agricultural residues (bean straw and maize cob) by ... -
High-precision photometric and high-resolution spectroscopic characterisation of HD180347
(arXiv preprint arXiv, 2023)We report the analysis of high-precision space-based photometric and high-resolution spectroscopic observations of HD180347. The high-quality light curves from the Transiting Exoplanet Survey Satellite (TESS) under sectors ...
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