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Telemedicine provides a means to transcend time, geographic and cultural barriers in the delivery of healthcare services. It is also a great tool for the realization of the United Nations Sustainable Development Goals (SDGs No. 3) in... more
Telemedicine provides a means to transcend time, geographic and cultural barriers in the delivery of healthcare services. It is also a great tool for the realization of the United Nations Sustainable Development Goals (SDGs No. 3) in ensuring healthy lives and promotion of well-being for all, at all ages. However, despite its obvious benefits, most developing countries especially in Sub-Saharan Africa are still lagging behind in the adoption of telemedicine for their citizenry. This article reviews the past and present practice of telemedicine, the influence of the COVID-19 pandemic on the growth of telemedicine, and its potential to solve healthcare challenges in developing nations. This study establishes that despite the plethora of solutions offered by telemedicine, its slow adoption in most developing countries in Sub-Saharan Africa could be attributed to: the high initial cost of its establishment, unavailability of reliable internet connection, irregular power supply and resistance to new technology and approaches.
This paper presents the impact of utilizing a biased energy distribution (BED) scheme among sensor nodes for clustering sensor networks. In clustering sensor networks, some of the nodes are elected as aggregators and they compress the... more
This paper presents the impact of utilizing a biased energy distribution (BED) scheme among sensor nodes for clustering sensor networks. In clustering sensor networks, some of the nodes are elected as aggregators and they compress the data from their cluster members before sending the aggregated data to the sink. Existing clustering routing protocols assume that all the nodes are provided with equal amount of energy but this shortens the network lifetime and makes the network unstable once the first node dies. This paper proposes a solution by using a technique that prioritizes the network into higher and lower energy nodes. The aim of this approach is to ensure well balanced energy consumption in order to maximize network lifetime. It is shown by simulation that the proposed technique exhibits better performance when compared to existing clustering routing techniques in terms of throughput, network lifetime and energy consumption.
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... Abstract. The return of Islamic currencies consisting of the Dinar and Dirham calls for the return of the Islamic Trade and market. ... Additional Information: 5393/23354. Uncontrolled Keywords: IRIIE 2010, Dinar, dirham, Islamic... more
... Abstract. The return of Islamic currencies consisting of the Dinar and Dirham calls for the return of the Islamic Trade and market. ... Additional Information: 5393/23354. Uncontrolled Keywords: IRIIE 2010, Dinar, dirham, Islamic market. ...
Abstract A new parametric modeling technique for the analysis of the ECG signal is presented in this paper. This approach involves the projection of the excitation signal on the right eigenvectors of the impulse response matrix of the LPC... more
Abstract A new parametric modeling technique for the analysis of the ECG signal is presented in this paper. This approach involves the projection of the excitation signal on the right eigenvectors of the impulse response matrix of the LPC filter. Each projected value is then weighted by the corresponding singular value, leading to an approximated sum of exponentially damped sinusoids (EDS). A two-stage procedure is then used to estimate the EDS model parameters. Prony's algorithm is first used to obtain initial estimates of the ...
ABSTRACT Crack can easily be seen on many buildings and along major roads in developing and developed countries. These cracks come in various shapes, sizes and orientation. The main objective of this work is to apply digital signal and... more
ABSTRACT Crack can easily be seen on many buildings and along major roads in developing and developed countries. These cracks come in various shapes, sizes and orientation. The main objective of this work is to apply digital signal and image processing ...
Abstract— The design and development of an Intelligent Robotic Donation Box (IRDB) system as a typical final year project in Mechatronics engineering is presented in this paper. The developed IRDB system has the capability of collecting... more
Abstract— The design and development of an Intelligent Robotic Donation Box (IRDB) system as a typical final year project in Mechatronics engineering is presented in this paper. The developed IRDB system has the capability of collecting donation from people in an organized ...
"Recent application of modern marketing techniques coupled with intelligent agricultural systems of production has transformed small scale farming into large scale, in most part of the world. Characteristically, most of the tropical... more
"Recent application of modern marketing techniques coupled with intelligent agricultural systems of production has transformed small scale farming into large scale, in most part of the world. Characteristically, most of the tropical fruits, such as orange, appeared edible physically but internally such fruits might be defective based on their tissue and juice. Eventually, these fruits, via the market and undetected, usually get to the consumers who encounter the unfavourable status of the fruits. Our purpose, in this study, is to develop a non-destructive method to predict the status of orange fruits, based on internal quality. Graph of histogram showing the levels of different four colour intensities were acquired and analysed. The features extracted from Magnetic Resonance Imaging (MRI), using any of the two proposed methods, were applied as an input to train artificial neural network (ANN) in order to predict the orange fruit status. Different structures of multi-layer perceptron neural networks with feed-forward and back-propagation learning algorithms were developed using MATLAB. The theoretical background of MRI and artificial neural network (ANN) backpropagation were also explained. At hidden neuron value of 20, search is for backpropagation and number of neurons in the hidden layer to optimize the ANN. Levenberg-Marquardt algorithm (trainlm) gave the best performance fitness out of different types of backpropagation algorithm used with least Mean Square Error (MSE) of 0.0814 corresponding to R-value of 0.8094. This work shows that ANN and MRI have the capability of predicting the internal content and detect defect fruit based on water proton content. "
A new method of estimating the coefficients of an autoregressive (AR) model using real-valued neural network (RVNN) technique is presented in this paper. The coefficients of the AR model are obtained from the synaptic weights and adaptive... more
A new method of estimating the coefficients of an autoregressive (AR) model using real-valued neural network (RVNN) technique is presented in this paper. The coefficients of the AR model are obtained from the synaptic weights and adaptive coefficients of the activation function of a two layer RVNN while the number of neurons in the hidden layer is estimated from over-constrained system of equations. The performance of the proposed technique has been evaluated using sinusoidal data and recorded speech so as to examine the spectral ...
Earthquake is one of the most destructive natural disasters that killed many people and destroy lots of properties. The ability to predict the earthquake can lead to great reduction in catastrophic effect caused by this unwanted... more
Earthquake is one of the most destructive natural disasters that killed many people and destroy lots of properties. The ability to predict the earthquake can lead to great reduction in catastrophic effect caused by this unwanted phenomenon. Earthquake predictions involve the study of the phenomenon prior to the earthquake. As many observation of the earthquake prior phenomenon, unusual animal behavior is one of the precursor phenomena prior to the earthquake. Among the geophysical stimuli which lead as precursor signals for ...
ABSTRACT Vascular intersection is an important feature in retina fundus image (RFI). It can be used to monitor the progress of diabetes hence accurately determining vascular point is of utmost important. In this work a new method of... more
ABSTRACT Vascular intersection is an important feature in retina fundus image (RFI). It can be used to monitor the progress of diabetes hence accurately determining vascular point is of utmost important. In this work a new method of vascular point detection using artificial neural network model has been proposed. The method uses a 5×5 window in order to detect the combination of bifurcation and crossover points in a retina fundus image. Simulated images have been used to train the artificial neural network and on convergence the network is used to test (RFI) from DRIVE database. Performance analysis of the system shows that ANN based technique achieves 100% accuracy on simulated images and minimum of 92% accuracy on RFI obtained from DRIVE database.
ABSTRACT In this paper, a newly proposed Real Valued Neural Network (RVNN) based Energy Detector (ED) is presented for Cognitive Radio (CR) application. With little available on the performance of EDs in varying spectrum occupancy... more
ABSTRACT In this paper, a newly proposed Real Valued Neural Network (RVNN) based Energy Detector (ED) is presented for Cognitive Radio (CR) application. With little available on the performance of EDs in varying spectrum occupancy conditions, we provide a study to understand how occupancy variation affects the performance of a newly proposed RVNN based ED and other ED schemes. Other factors such as varying signal to Noise Ratio (SNR) and model order values were also examined in this study and result analysis conducted using the Precision detection statistics. Implication of results obtained indicate that the RVNN based ED would perform optimum in high occupancy and SNR conditions for a model order choice of P = 20. We also observed that the RVNN based ED would provide better precision performance characteristics over the Periodogram, Welch and Multitaper based ED schemes compared herein. Hence, the RVNN based ED suffices as a favourable choice for CR application even under varying occupancy conditions.
ABSTRACT In this paper, new method of Colpitts oscillator designing through combination of Genetic Algorithm and Artificial Neural Network (ANN) has been suggested. The Thevenin's resistors for the common base Colpitts oscillator... more
ABSTRACT In this paper, new method of Colpitts oscillator designing through combination of Genetic Algorithm and Artificial Neural Network (ANN) has been suggested. The Thevenin's resistors for the common base Colpitts oscillator are optimized through application of GA and ANN. The developed common base Colpitts oscillator has shortest transient time response and stable Direct Current (DC) stability in the long term operation. Involvement of GA and ANN successfully optimize between transient time response and steady state response of common base oscillator. Application of these two artificial intelligent techniques assist faster selection of optimizes components values such as resistance values during circuit development rather than conventional method which used intuition techniques to develop the circuit.
ABSTRACT In the design of the common base Colpitts oscillator, the resistance values of Thevenin’s resistors significantly influenced the transient time and steady state response of the resulting circuit. Various traditional approaches... more
ABSTRACT In the design of the common base Colpitts oscillator, the resistance values of Thevenin’s resistors significantly influenced the transient time and steady state response of the resulting circuit. Various traditional approaches such as intuitive reasoning, mathematical calculation, and simulation-based techniques have been proposed in the literature for this purpose. Some of the aforementioned techniques involve rigorous mathematics, intuition, and experimentation in determining appropriate component values for optimal performance, stable steady state performance, and short transient response time from the resulting oscillator. In this paper, a new method of designing Colpitts oscillator using hybrid artificial intelligence comprising evolutionary-based Genetic Algorithm (GA) and artificial neural network (ANN) has been proposed. GA has been used in selecting various optimum resistance values of Thevenin’s resistors for maximizing long-term stability of the output waveform thus ensuring stable steady response of the designed circuit. ANN has been utilized in learning the nonlinear relationship between Thevenin’s resistors and transient time response of the Colpitts oscillator. Upon ANN convergence, optimum resistance values of obtained from GA process are fed into the trained ANN in predicting transient response time of each circuit. Optimized values with the shortest transient response time are finally selected for the Colpitts oscillator. The designed circuit successfully achieved optimization between its transient time response and steady state response. Hence, successfully reducing computation associated with existing traditional techniques in designing similar optimum Colpitts oscillator and achieving stable steady state output. Furthermore, this work has also demonstrated that ANN is capable of predicting the transient time of circuit with reasonable accuracy.
With sensitivity being an important factor in spectrum sensing based Cognitive Radio (CR) application; it remains unclear which out of the many existing Energy Detector (ED) techniques provides the best sensitivity performance for CR... more
With sensitivity being an important factor in spectrum sensing based Cognitive Radio (CR) application; it remains unclear which out of the many existing Energy Detector (ED) techniques provides the best sensitivity performance for CR application. Consequently, this paper reports a study of some known parametric and non-parametric Energy Detector (ED) schemes for Cognitive Radio (CR) application towards providing relevant information. The models studied are the Simple Periodogram (SP), Welch Periodogram (WP), Multi-Taper (MT), Yule-Walker (YW), Burg (BG), and Covariance (CV). Each technique was developed using known mathematical models and appropriate signals were simulated for comparative analysis. However, owing to the limitation of the typical Receiver Operating Characteristic (ROC) curve to infer comparative information, our study proposes a decomposition of the ROCs of each technique into respective detection and false alarm probability curves in comparison with estimated thresh...
Abstract - New advancements in the technology of wireless sensors have contributed to the development of special protocols which are unique to sensor networks where minimal energy consumption is vital and very important. As a result, the... more
Abstract - New advancements in the technology of wireless sensors have contributed to the development of special protocols which are unique to sensor networks where minimal energy consumption is vital and very important. As a result, the focus and effort of researchers is on designing ...
Abstract— The design and development of an Intelligent Robotic Donation Box (IRDB) system as a typical final year project in Mechatronics engineering is presented in this paper. The developed IRDB system has the capability of collecting... more
Abstract— The design and development of an Intelligent Robotic Donation Box (IRDB) system as a typical final year project in Mechatronics engineering is presented in this paper. The developed IRDB system has the capability of collecting donation from people in an organized ...
A new method of estimating the coefficients of an autoregressive (AR) model using real-valued neural network (RVNN) technique is presented in this paper. The coefficients of the AR model are obtained from the synaptic weights and adaptive... more
A new method of estimating the coefficients of an autoregressive (AR) model using real-valued neural network (RVNN) technique is presented in this paper. The coefficients of the AR model are obtained from the synaptic weights and adaptive coefficients of the activation function of a two layer RVNN while the number of neurons in the hidden layer is estimated from over-constrained system of equations. The performance of the proposed technique has been evaluated using sinusoidal data and recorded speech so as to examine the spectral ...
Earthquake is one of the most destructive natural disasters that killed many people and destroy lots of properties. The ability to predict the earthquake can lead to great reduction in catastrophic effect caused by this unwanted... more
Earthquake is one of the most destructive natural disasters that killed many people and destroy lots of properties. The ability to predict the earthquake can lead to great reduction in catastrophic effect caused by this unwanted phenomenon. Earthquake predictions involve the study of the phenomenon prior to the earthquake. As many observation of the earthquake prior phenomenon, unusual animal behavior is one of the precursor phenomena prior to the earthquake. Among the geophysical stimuli which lead as precursor signals for ...
In this report, the well known parametric method of signals and systems representation is extended to modeling and prediction of cracks on building and road surfaces. Also, a new algorithm based on complex value autoregressive neural... more
In this report, the well known parametric method of signals and systems representation is extended to modeling and prediction of cracks on building and road surfaces. Also, a new algorithm based on complex value autoregressive neural network with split linear activation function for the determination of Complex-Value Autoregressive Moving average (CARMA) coefficients is also proposed in this report. Furthermore, mathematical derivation and detail analysis of the proposed CARMA based Complex- ...
Mould growth in indoor environments; has been of concern in the built environments, particularly in the hospital, library and residential environment. The phenomenon of Sick Building Syndrome (SBS) and Building Related Illness (BRI) have... more
Mould growth in indoor environments; has been of concern in the built environments, particularly in the hospital, library and residential environment. The phenomenon of Sick Building Syndrome (SBS) and Building Related Illness (BRI) have also been attributed to mould exposure in the indoor environment. Despite the growing concern over mould infestation on building materials and its presence even in hospital and library environment, little have been reported on the development of an objective mould assessment tool and ...
In this paper, a new method of biomedical signal classification using complex-valued pseudo autoregressive (CAR) modeling approach has been proposed. The CAR coefficients were computed from the synaptic weights and coefficients of a split... more
In this paper, a new method of biomedical signal classification using complex-valued pseudo autoregressive (CAR) modeling approach has been proposed. The CAR coefficients were computed from the synaptic weights and coefficients of a split weight and activation function of a feedforward multilayer complex valued neural network. The performance of the proposed technique has been evaluated using PIMA Indian diabetes dataset with different complex-valued data normalization techniques and four different values of learning rate. ...
ABSTRACT The performance of two impellers (Rushton and Elephant ear) for waste cooking oil (WCO) transesterification were experimentally and numerically evaluated inside a unbaffled and baffled stirred tank reactor (STR). Three parameters... more
ABSTRACT The performance of two impellers (Rushton and Elephant ear) for waste cooking oil (WCO) transesterification were experimentally and numerically evaluated inside a unbaffled and baffled stirred tank reactor (STR). Three parameters (impeller bottom distance (C), speed, (N) and temperature) were investigated for fatty acid methyl esters (FAME) yield using a Taguchi orthogonal array (OA) experimental design. The mixing study is based on the κ-ε and large eddy simulation (LES) turbulent model using a multiple reference frame (MRF) approach and the result was validated by particle image velocimetry (PIV) measurement. Overall flow structure in the baffled in STR was isotropic at C = 20, 25 and 30 mm for Rushton and to a lesser extent at the STR centre in the unbaffled STR. Mean radial velocities of the Elephant ear impeller was about 25-30% of the Rushton impeller for 600 rpm and 85-90% in baffled STR at C = 30 mm in the unbaffled STR. CFD results of κ-ε and LES results were qualitatively similar at mid-impeller plane than for the other parts of the STR. However, none of the model could capture the vortex trailing encountered with Rushton impeller. Experimental mixing time, a function of FAME yield and liquid velocities were found to be dependent on stirrer speeds, impeller bottom distance and bulk flow pattern. The study demonstrated the effect of different impeller types used in the laboratory on FAME yield and attributed to flow characteristics. This model is being used to evaluate other conditions of the reactions.

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