Radhakrishna Prabhu
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View article: Microplastics in agricultural soils following sewage sludge applications: Evidence from a 25-year study
Microplastics in agricultural soils following sewage sludge applications: Evidence from a 25-year study Open
Sewage sludges applied to agricultural soils are sources of microplastic pollution, however, little is known about the accumulation, persistence, or degradation of these microplastics over time. This is the first study to provide long-term…
View article: Assessment of Surface Water Quality Using Chemometric Tools: A Case Study of Jabi Lake, Abuja, Nigeria
Assessment of Surface Water Quality Using Chemometric Tools: A Case Study of Jabi Lake, Abuja, Nigeria Open
Water pollution has become a growing threat to human society and natural ecosystems in recent decades. It increases the need to understand surface water quality assessment better using chemometric tools within aquatic systems. This study s…
View article: Optimizing Energy Efficiency in Underwater Acoustic Networks Through Machine Learning Classifiers
Optimizing Energy Efficiency in Underwater Acoustic Networks Through Machine Learning Classifiers Open
Among many challenges in establishing an Underwater Wireless Sensor Network, is the challenge of resource constraints, battery and bandwidth being limited which renders acoustic networks limited in life and application. One identified appl…
View article: Adaptive path-planning for AUVs in dynamic underwater environments using sonar data
Adaptive path-planning for AUVs in dynamic underwater environments using sonar data Open
This paper presents an innovative approach to path-planning for Autonomous Underwater Vehicles (AUVs) in complex underwater environments, leveraging single-beam sonar data. Recognizing the limitations of traditional sonar systems in provid…
View article: Optimization of illumination for security hologram authentication
Optimization of illumination for security hologram authentication Open
Security holograms, diffractive optical elements known for their intricate 3D visuals, are a cornerstone of brand protection. However, their effectiveness hinges on robust authentication methods. This work explores the critical role of ill…
View article: Highly Sensitive D-SPR Sensors with Optimized Metallic Thin Films for Bio-Analyte Detection
Highly Sensitive D-SPR Sensors with Optimized Metallic Thin Films for Bio-Analyte Detection Open
There is a growing need for precise and rapid detection methods in fields such as biomedical diagnostics, environmental monitoring, and chemical analysis. Surface plasmon resonance (SPR) sensors have been used for the detection and quantif…
View article: Nexus between Building-Integrated Photovoltaics (BIPV) and Cultural Heritage: Optical Characterisation of Screen-Printed Traditional Symbols on Solar Cells
Nexus between Building-Integrated Photovoltaics (BIPV) and Cultural Heritage: Optical Characterisation of Screen-Printed Traditional Symbols on Solar Cells Open
This preliminary study adopts a screen-printing technique to transfer traditional Adinkra symbols onto monocrystalline solar cells. The study reveals that custom patterns for the top contact design of solar cells are achievable through dir…
View article: Computational Analysis on Partial Flexible Tubercle Wing
Computational Analysis on Partial Flexible Tubercle Wing Open
In this paper, NACA 4412 airfoil, NACA 4412 airfoil with partial flexible sheet, NACA 4412 airfoil modified with leading edge tubercle and NACA 4412 airfoil modified with leading edge tubercle with partial flexible sheet. All the above fou…
View article: Proposing an Approach for the Diffusion of Building Integrated Photovoltaics (BIPVs)—A Case Study
Proposing an Approach for the Diffusion of Building Integrated Photovoltaics (BIPVs)—A Case Study Open
Consistent probing into building integrity has led to the exploration of clean energy options such as building integrated photovoltaic (BIPV). BIPV has proven to be aesthetically pleasing, architecturally feasible, and capable of making bu…
View article: Assessment of Awareness and Willingness to Adopt Solar Energy in Ghana – Perspective from End Users
Assessment of Awareness and Willingness to Adopt Solar Energy in Ghana – Perspective from End Users Open
The culture of sustainable and clean energy has become a top priority in many countries globally partly due to the issue of climate change and energy paucity. Solar energy is one of the most adopted energy sources due to its clean nature a…
View article: Fuzzy logic, edge enabled underwater video surveillance through partially wireless optical communication
Fuzzy logic, edge enabled underwater video surveillance through partially wireless optical communication Open
Underwater surveillance is inherently tricky to achieve. Even in the clearest waters, the visibility tends to be in the range of tens of meters. Normally, tethered Remotely Operated Vehicles (ROVs) with underwater cameras are used for unde…
View article: Detecting and tracking the position of suspicious objects using vision system
Detecting and tracking the position of suspicious objects using vision system Open
Vision-based object tracking is crucial for both civil and military applications. A range of hazards to cyber safety, vital infrastructure, and public privacy are posed by the rise of drones, or unmanned aerial vehicles (UAV). As a result,…
View article: Performance and Energy Modelling for a Low Energy Acoustic Network for the Underwater Internet of Things
Performance and Energy Modelling for a Low Energy Acoustic Network for the Underwater Internet of Things Open
As the Internet of Things (IoT) continues to find new applications, there is academic and industrial interest in expanding these concepts to the oceanic environment where data is traditionally challenging to communicate wirelessly, establi…
View article: Tracking and Estimation of Surgical Instrument Position and Angle in Surgical Robot Using Vision System
Tracking and Estimation of Surgical Instrument Position and Angle in Surgical Robot Using Vision System Open
A da Vinci robot endoscopic-camera gives surgeons a magnified 2D view of the operating area, but additional time is required to detect and estimate the location of the surgical-instrument during an operation. The main focus and novelty of …
View article: Vision Based Relative Position Estimation in Surgical Robotics
Vision Based Relative Position Estimation in Surgical Robotics Open
Teleoperation-based Robotic-Assisted Minimally In-vasive Surgery (RAMIS) has gained immense popularity in medical field. However, limited physical interaction between the surgeon and patient poses a significant challenge. In RAMIS, the sur…
View article: Design of Temperature Based Automatic Fan Speed Controller Using Arudino
Design of Temperature Based Automatic Fan Speed Controller Using Arudino Open
This paper is an independent automatic fan speed controller that uses an electronic circuit made out of an Arduino board to control the speed of an electric fan in accordance with the requirements. This closed-loop applications feedback-co…
View article: Extremely Random Forest based Automatic Tonic-Clonic Seizure Detection using Spectral Analysis on Electroencephalography Data
Extremely Random Forest based Automatic Tonic-Clonic Seizure Detection using Spectral Analysis on Electroencephalography Data Open
Machine learning proliferates society and has begun changing medicine. This report covers an investigation into how Extremely Random Forests combined with Fast Fourier Transform feature extraction performed on two-dimensional time-series E…
View article: Multimodal, Software Defined Networking for Subsea Sensing and Monitoring
Multimodal, Software Defined Networking for Subsea Sensing and Monitoring Open
The prevalence of oceanic industry and ocean borne interests has given rise to the concept of the Underwater Internet of Things as a vector for automation and data analytics in an environment hostile to anthropomorphic activity. Through th…
View article: Optical fibre-based sensors for monitoring offshore floating photovoltaic farms
Optical fibre-based sensors for monitoring offshore floating photovoltaic farms Open
Solar photovoltaic farms are seeing increasing expansion into new domains (offshore) in order to harvest the sunlight as society pushes towards reaching Net Zero by 2050. However, photovoltaics are bound by physics, parameters such as temp…
View article: Pipeline Leakage Detection and Characterisation with Adaptive Surrogate Modelling Using Particle Swarm Optimisation
Pipeline Leakage Detection and Characterisation with Adaptive Surrogate Modelling Using Particle Swarm Optimisation Open
Pipelines are often subject to leakage due to ageing, corrosion, and weld defects, and it is difficult to avoid as the sources of leakages are diverse. Several studies have demonstrated the applicability of the machine learning model for t…
View article: Speckle pattern analysis of security holograms and related foils for quality assessment and authentication
Speckle pattern analysis of security holograms and related foils for quality assessment and authentication Open
A speckle pattern is produced by the mutual interference of a set of coherent wavefronts. Speckle patterns typically occur in diffuse reflections of monochromatic light such a laser light. When a rough surface is illuminated by a coherent …
View article: A simulation into the physical and network layers of optical communication network for the subsea video surveillance of illicit activity
A simulation into the physical and network layers of optical communication network for the subsea video surveillance of illicit activity Open
Criminal activity is increasingly entering the ocean subsurface with acts such as illegal fishing and narco-submarining becoming points of contention. This among other illicit acts taking place in this domain imply a need for surveillance …
View article: Rapid extraction of high- and low-density microplastics from soil using high-gradient magnetic separation
Rapid extraction of high- and low-density microplastics from soil using high-gradient magnetic separation Open
Microplastics (MPs) are present in all environments, and concerns over their possible detrimental effects on flora and fauna have arisen. Density separation (DS) is commonly used to separate MPs from soils to allow MP quantification; howev…
View article: Thermal Spray Coatings for Electromagnetic Wave Absorption and Interference Shielding: A Review and Future Challenges
Thermal Spray Coatings for Electromagnetic Wave Absorption and Interference Shielding: A Review and Future Challenges Open
This review aims to consolidate scattered literature on thermally sprayed coatings with nonionizing electromagnetic (EM) wave absorption and shielding over specific wavelengths potentially useful in diverse applications (e.g., microwave to…
View article: Formulation and Evaluation of Polymeric Nanoparticles of Felodipine
Formulation and Evaluation of Polymeric Nanoparticles of Felodipine Open
Objective: The objective of the present study was to formulate and evaluate polymeric nanoparticles of Felodipine by Nano precipitation technique using EudragitL100 and EudragitS100 as a polymers. The nanoparticles were characterized for p…
View article: Colours and Shapes–Perspective from Ghanaians on BIPV Aesthetic Optimisation
Colours and Shapes–Perspective from Ghanaians on BIPV Aesthetic Optimisation Open
Colours, texture and shapes of Buildings Integrated Photovoltaic (BIPV) have been fully explored in recent times to match mainstream architectural aesthetics. This study aims at getting some perspectives from Ghanaians when it comes to the…