12 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University for Development StudiesGH10 papers
- Polish Academy of SciencesPL3 papers
- Ghana Atomic Energy CommissionGH2 papers
- Institute of PhysicsPL2 papers
- Pennsylvania State UniversityUS2 papers
- AGH University of KrakowPL1 paper
- Brown UniversityUS1 paper
- Cardinal Stefan Wyszynski University in WarsawPL1 paper
- Georgia Institute of TechnologyUS1 paper
- Ghana Space Science and Technology InstituteGH1 paper
- Google (United States)US1 paper
- Jomo Kenyatta University of Agriculture and TechnologyKE1 paper
24 papers
A Parametric, Geometry-Aware Residential Construction Cost Estimation Model for Ghana: Design, Validation, and the "Completeness Gap" in Informal Contractor Quotes
Emmanuel Apaaboah, Bernard Opoku, the GhanaHousePlanner Research Team
Ghana faces a residential housing deficit of two million units. A key driver of project failure is the "completeness gap", a systematic discrepancy between informal contractor quot…
Discrete-Time Optimal Control of Species Augmentation for Predator-Prey Model
Munkaila Dasumani, Suzanne Lenhart, Gladys K. Onyambu +1
Species augmentation is one of the methods used to promote biodiversity and prevent endangered species loss and extinction. The current work applies discrete-time optimal control t…
Graph Attention Networks for Detecting Epilepsy from EEG Signals Using Accessible Hardware in Low-Resource Settings
Szymon Mazurek, Stephen Moore, Alessandro Crimi
Goal: Epilepsy remains under-diagnosed in low-income countries due to scarce neurologists and costly diagnostic tools. We propose a graph-based deep learning framework to detect ep…
Refractive Index, Its Chromatic Dispersion, and Thermal Coefficients of Four Less Common Glycols
Anastasiya Derkachova, Daniel Jakubczyk, Gennadiy Derkachov +1
We report comprehensive measurements of the refractive index as a function of wavelength and temperature for four less commonly studied glycols: pentaethylene glycol, hexaethylene…
AfriMed-QA: A Pan-African, Multi-Specialty, Medical Question-Answering Benchmark Dataset
Tobi Olatunji, Charles Nimo, Abraham Owodunni +23
Recent advancements in large language model(LLM) performance on medical multiple choice question (MCQ) benchmarks have stimulated interest from healthcare providers and patients gl…
Combining transmission speckle photography and convolutional neural network for determination of fat content in cow's milk -- an exercise in classification of parameters of a complex suspension
Kwasi Nyandey, Daniel Jakubczyk
We have combined transmission speckle photography and machine learning for direct classification and recognition of milk fat content classes. Our aim was hinged on the fact that pa…
Luminescent nanoparticles in a shrinking spherical cavity -- probing the evaporating microdroplets of colloidal suspension -- optical lattices and structural transitions
Yaroslav Shopa, Maciej Kolwas, Izabela Kamińska +6
We investigated the possibility of using charged luminescent nanoparticles as nanoprobes for studying the evolution scenarios of surface and internal structure of slowly evaporatin…
Multipatch Discontinuous Galerkin IGA for the Biharmonic Problem On Surfaces
Stephen E. Moore
We present the analysis of interior penalty discontinuous Galerkin Isogeometric Analysis (dGIGA) for the biharmonic problem on orientable surfaces Here, we…
Controlling the Transmission Dynamics of COVID-19
Stephen E. Moore, Eric Okyere
The outbreak of COVID-19 caused by SARS-CoV-2 in Wuhan and other cities in China in 2019 has become a global pandemic as declared by World Health Organization (WHO) in the first qu…
Discontinuous Galerkin Isogeometric Analysis for Elliptic Problems with Discontinuous Coefficients on Surfaces
Stephen Edward Moore
This paper is concerned with using discontinuous Galerkin isogeometric analysis (dGIGA) as a numerical treatment of Diffusion problems on orientable surfaces $Ω\subset \mathbb{R}^3…
A hybrid quantum eraser scheme for characterization of free-space and fiber communication channels
Isaac Nape, Charlotte Kyeremah, Adam Vallés +3
We demonstrate a simple projective measurement based on the quantum eraser concept that can be used to characterize the disturbances of any communication channel. Quantum erasers a…
Absorption of acoustic phonons in Fluorinated Carbon Nanotubes with non-parabolic, double periodic band
D. Sekyi-Arthur, S. Y. Mensah, N. G. Mensah +2
We studied theoretically the absorption of acoustic phonons in the hypersound regime in Fluorine modified Carbon Nanotube (F-CNT) and compared it to that of undoped S…
Hydrodynamic study of edge spin-vortex excitations of fractional quantum Hall fluid
M. Rabiu, S. Y. Mensah, I. Y. Seini +1
We undertake a theoretical study of edge spin-vortex excitations in fractional quantum Hall fluid. This is done in view of quantised Euler hydrodynamics theory. The dispersions of…
Magnetoplasmon excitations at graphene vortex Hall fluid edge
M. Rabiu, S. Y. Mensah, S. Y. Ibrahim +1
We investigate magnetoplasmon dynamics localized on the edges of graphene vortex Hall fluid. The vortex matter captures an anomalous term that causes vortex localization near fluid…
Nonlinear Conductivity in Graphene
S. S. Abukari, S. Y. Mensah, R. Musah +2
We consider the tight-binding approximation for the description of energy bands of graphene, together with the standard Boltzmann's transport equation and constant relaxation time,…
Hot electrons injection in carbon nanotubes under the influence of quasi-static ac-field
M. Amekpewu, S. Y. Mensah, R. Musah +3
Hot electrons injection in carbon nanotubes (CNTs ) where in addition to applied dc field (), there exist simultaneously a quasi-static ac electric field (i.e. when the…
High Frequency Conductivity of Hot Electrons in Carbon Nanotubes
M. Amekpewu, S. Y. Mensah, R. Musah +3
High frequency conductivity of hot electrons in an undoped single walled achiral carbon nanotubes (CNTs) under the influence of ac-dc driven fields is considered. We investigated s…
Thermoelectric Amplification of Phonons in Graphene
K. A. Dompreh, S. Y. Mensah, N. G. Mensah +1
Amplification of acoustic phonons due to an external temperature gredient () in Graphene was studied theoretically. The threshold temperature gradient …
Hypersound Absorption of Acoustic Phonons in a degenerate Carbon Nanotube
K. A. Dompreh, N. G. Mensah, S. Y. Mensah +3
Hypersound Absorption of acoustic phonons having in a degenerate Carbon Nanotube (CNT) with linear energy dispersion near the Fermi level was theoretically studied. The gen…
External electric field effect on electron transport in carbon nanotubes
S. S. Abukari, S. Y. Mensah, N. G. Mensah +3
Electronic transport properties of carbon nanotubes are studied theoretically in the presence of external electric field E(t) by using the Boltzmann's transport with constant relax…
Appearance of Negative Differential Conductivity in Graphene Nanoribbons at High-Harmonics
M. Rabiu, S. Y. Mensah, S. S. Abukari
We theoretically study current dynamics of graphene nanoribbons subject to bias dc and ac driven fields. We showed that graphene nanoribbons exhibit negative high-harmonic differen…
Generation and Amplification of Terahertz Radiation in Carbon Nanotubes
S. S. Abukari, S. Y. Mensah, N. G. Mensah +4
We investigate theoretically the feasibility of generation and amplification of terahertz radiation in aligned achiral carbon nanotubes (zigzag and armchair) in comparison with a s…
Terahertz Generation and Amplification in Graphene Nanoribbons in Multi-frequency Electric Fields
M. Rabiu, S. Y. Mensah, S. S. Abukari
We study theoretically a multi-frequency response of electrons in confined graphene subject to dc-ac driven fields. We explore the possibility for using graphene nanoribbons (GNRs)…
General Scattering Mechanism and Transport in Graphene
M. Rabiu, S. Y. Mensah, S. S. Abukari
Using quasi-time dependent semi-classical transport theory in RTA, we obtained coupled current equations in the presence of time varying field and based on general scattering mecha…