Human bone has the remarkable capacity of remodeling and self repair through a complex regenerati... more Human bone has the remarkable capacity of remodeling and self repair through a complex regenerative healing process resulting in the gradual restoration of its mechanical properties and load bearing capacity [1]. Fracture healing goes through three distinct stages: reactive ...
2020 International Conference on Communications, Signal Processing, and their Applications (ICCSPA), 2021
A study is conducted to investigate the use of a parametric intensity model for the process of im... more A study is conducted to investigate the use of a parametric intensity model for the process of image classification in biomedical microwave tomography (MWT). This process allows for extracting structural information about an object-of-interest (OI), which can be incorporated as prior information in an inversion algorithm. The parametric intensity model is based on a supervised Gaussian probabilistic model. The generated intensity model is used to classify three cross-sectional MWT images of human lower leg models. The classification is based on a Bayesian decision classifier. The resulting segments are used to extract structural information about the legs' contour.
Background Osteoporosis is the major cause of bone weakness and fragility in more than 10 million... more Background Osteoporosis is the major cause of bone weakness and fragility in more than 10 million people in the United States. This disease causes bone fractures in the hip or spine, which result in increasing the risk of disabilities or even death. The current gold standard in osteoporosis diagnostics, X-ray, although reliable, it uses ionizing radiations that makes it unfeasible for early and continuous monitoring applications. Recently, microwave tomography (MWT) has been emerging as a biomedical imaging modality that utilizes non-ionizing electromagnetic signals to screen bones’ electrical properties. These properties are highly correlated to bones’ density, which makes MWT to be an effective and safe alternative for frequent testing in osteoporosis diagnostics. Results Both the conventional and wearable simulated systems were successful in localizing the tibia and fibula bones in the enhanced MWT images. Furthermore, structure extraction of the leg’s model from the blind MWT im...
2019 AEIT International Annual Conference (AEIT), 2019
This paper reports the experimental study of new conductive concrete mixtures. Different mixtures... more This paper reports the experimental study of new conductive concrete mixtures. Different mixtures were cast with different combinations of conductive materials to determine the properties of conductive concrete mixtures and compare the effects of light weight aggregate and normal weight aggregate on the electrical properties of the mixtures. Measurement results demonstrated that the conductive concrete with light weight aggregate generally performs as well as the conductive concrete with normal weight aggregate in terms of electrical resistance, concrete strengths and microwave attenuation. The results show that the conductive concrete mixtures are suitable for constructing shielded facilities in smart cities applications.
Wael Saleh 1&2, Philip Slade1, David Wright1and Nasser Qaddoumi2 1 Electronic Systems Research Gr... more Wael Saleh 1&2, Philip Slade1, David Wright1and Nasser Qaddoumi2 1 Electronic Systems Research Group, Department of Engineering School of Engineering and Computer Science, University of Exeter Exeter, EX4 4QF, UK 2 Microwave Imaging & Nondestructive Evaluation Laboratory (minel) Electrical Engineering Department, School of Engineering, American University of Sharjah P.O. Box 26666, Sharjah, UAE E-mail: wsaleh@ausharjah.edu
In this paper, a preliminary numerical study is conducted to investigate the use of microwave tom... more In this paper, a preliminary numerical study is conducted to investigate the use of microwave tomography in monitoring bone density in human lower limbs. By monitoring bone density, the effectiveness of Vitamin D treatment can be evaluated for Osteoporosis patients. In microwave tomography, the leg is radiated with non-ionizing low-power electromagnetic signals with scattered electric fields measured at several locations surrounding the leg. Within the framework of inverse scattering problems, the measured fields are used as inputs for an optimization algorithm to estimate the location and electrical properties inside the human leg. In this work, a two-dimensional cross-sectional model of a human leg is created and simulated using a finite-element method where the transverse magnetic approximation is applied. The synthetic results are then inverted using a finite-element contrast source inversion method. The results show that variations in bone density effect the results of the inversion algorithm.
2017 IEEE Asia Pacific Microwave Conference (APMC), 2017
In this paper, a novel approach of using orthodontic braces as a radiating antenna element is inv... more In this paper, a novel approach of using orthodontic braces as a radiating antenna element is investigated. The orthodontic bracket is modelled and simulated using an electromagnetic simulation software. The results validate the usefulness of utilizing the overall metallic body of the orthodontic braces as a radiating antenna element. Further, the results verify the importance of the feeding point location of this radiating element, which impacts its overall frequency response and radiation frequency in such high lose environment. This novel idea is promising in equipping available orthodontic systems with battery-free electronic devices that can be powered through electromagnetic energy harvested via the orthodontic braces that are acting as antennas.
... Tamer Shanableh Computer Science and Eng. Dept. American University of Sharjah, UAE tshanbleh... more ... Tamer Shanableh Computer Science and Eng. Dept. American University of Sharjah, UAE tshanbleh@aus.edu Mohammed Adel Electrical Engineering Dept. American University of Sharjah, UAE m.eljaber@gmail.com Abstract ...
IEEE Transactions on Dielectrics and Electrical Insulation, 2010
This paper presents a novel near-field microwave nondestructive testing technique for defect dete... more This paper presents a novel near-field microwave nondestructive testing technique for defect detection in non-ceramic insulators (NCI). In this work, distribution class 33 kV NCI samples with no defects, air voids in silicone rubber, cracks in the fiberglass core and small metallic inclusion between the fiber core and shank were inspected. The microwave inspection system utilizes an open-ended rectangular waveguide
IEEE Transactions on Instrumentation and Measurement, 2014
ABSTRACT This paper presents a novel artificial neural network (ANN)-based near-field microwave n... more ABSTRACT This paper presents a novel artificial neural network (ANN)-based near-field microwave nondestructive testing technique for defect detection and classification in nonceramic insulators (NCI). In this paper, distribution class 33-kV NCI samples with no defects, air voids in silicone rubber and fiber glass core, cracks in the fiberglass core, and small metallic inclusion between the fiber core and shank were inspected. The microwave inspection system uses an open-ended rectangular waveguide sensor operating in the near-field at a frequency of 24 GHz. A data acquisition system was used to record the measured data. ANN was trained to classify the different types of defects. The results showed that all defects were detected and classified correctly with high recognition rates.
Human bone has the remarkable capacity of remodeling and self repair through a complex regenerati... more Human bone has the remarkable capacity of remodeling and self repair through a complex regenerative healing process resulting in the gradual restoration of its mechanical properties and load bearing capacity [1]. Fracture healing goes through three distinct stages: reactive ...
2020 International Conference on Communications, Signal Processing, and their Applications (ICCSPA), 2021
A study is conducted to investigate the use of a parametric intensity model for the process of im... more A study is conducted to investigate the use of a parametric intensity model for the process of image classification in biomedical microwave tomography (MWT). This process allows for extracting structural information about an object-of-interest (OI), which can be incorporated as prior information in an inversion algorithm. The parametric intensity model is based on a supervised Gaussian probabilistic model. The generated intensity model is used to classify three cross-sectional MWT images of human lower leg models. The classification is based on a Bayesian decision classifier. The resulting segments are used to extract structural information about the legs' contour.
Background Osteoporosis is the major cause of bone weakness and fragility in more than 10 million... more Background Osteoporosis is the major cause of bone weakness and fragility in more than 10 million people in the United States. This disease causes bone fractures in the hip or spine, which result in increasing the risk of disabilities or even death. The current gold standard in osteoporosis diagnostics, X-ray, although reliable, it uses ionizing radiations that makes it unfeasible for early and continuous monitoring applications. Recently, microwave tomography (MWT) has been emerging as a biomedical imaging modality that utilizes non-ionizing electromagnetic signals to screen bones’ electrical properties. These properties are highly correlated to bones’ density, which makes MWT to be an effective and safe alternative for frequent testing in osteoporosis diagnostics. Results Both the conventional and wearable simulated systems were successful in localizing the tibia and fibula bones in the enhanced MWT images. Furthermore, structure extraction of the leg’s model from the blind MWT im...
2019 AEIT International Annual Conference (AEIT), 2019
This paper reports the experimental study of new conductive concrete mixtures. Different mixtures... more This paper reports the experimental study of new conductive concrete mixtures. Different mixtures were cast with different combinations of conductive materials to determine the properties of conductive concrete mixtures and compare the effects of light weight aggregate and normal weight aggregate on the electrical properties of the mixtures. Measurement results demonstrated that the conductive concrete with light weight aggregate generally performs as well as the conductive concrete with normal weight aggregate in terms of electrical resistance, concrete strengths and microwave attenuation. The results show that the conductive concrete mixtures are suitable for constructing shielded facilities in smart cities applications.
Wael Saleh 1&2, Philip Slade1, David Wright1and Nasser Qaddoumi2 1 Electronic Systems Research Gr... more Wael Saleh 1&2, Philip Slade1, David Wright1and Nasser Qaddoumi2 1 Electronic Systems Research Group, Department of Engineering School of Engineering and Computer Science, University of Exeter Exeter, EX4 4QF, UK 2 Microwave Imaging & Nondestructive Evaluation Laboratory (minel) Electrical Engineering Department, School of Engineering, American University of Sharjah P.O. Box 26666, Sharjah, UAE E-mail: wsaleh@ausharjah.edu
In this paper, a preliminary numerical study is conducted to investigate the use of microwave tom... more In this paper, a preliminary numerical study is conducted to investigate the use of microwave tomography in monitoring bone density in human lower limbs. By monitoring bone density, the effectiveness of Vitamin D treatment can be evaluated for Osteoporosis patients. In microwave tomography, the leg is radiated with non-ionizing low-power electromagnetic signals with scattered electric fields measured at several locations surrounding the leg. Within the framework of inverse scattering problems, the measured fields are used as inputs for an optimization algorithm to estimate the location and electrical properties inside the human leg. In this work, a two-dimensional cross-sectional model of a human leg is created and simulated using a finite-element method where the transverse magnetic approximation is applied. The synthetic results are then inverted using a finite-element contrast source inversion method. The results show that variations in bone density effect the results of the inversion algorithm.
2017 IEEE Asia Pacific Microwave Conference (APMC), 2017
In this paper, a novel approach of using orthodontic braces as a radiating antenna element is inv... more In this paper, a novel approach of using orthodontic braces as a radiating antenna element is investigated. The orthodontic bracket is modelled and simulated using an electromagnetic simulation software. The results validate the usefulness of utilizing the overall metallic body of the orthodontic braces as a radiating antenna element. Further, the results verify the importance of the feeding point location of this radiating element, which impacts its overall frequency response and radiation frequency in such high lose environment. This novel idea is promising in equipping available orthodontic systems with battery-free electronic devices that can be powered through electromagnetic energy harvested via the orthodontic braces that are acting as antennas.
... Tamer Shanableh Computer Science and Eng. Dept. American University of Sharjah, UAE tshanbleh... more ... Tamer Shanableh Computer Science and Eng. Dept. American University of Sharjah, UAE tshanbleh@aus.edu Mohammed Adel Electrical Engineering Dept. American University of Sharjah, UAE m.eljaber@gmail.com Abstract ...
IEEE Transactions on Dielectrics and Electrical Insulation, 2010
This paper presents a novel near-field microwave nondestructive testing technique for defect dete... more This paper presents a novel near-field microwave nondestructive testing technique for defect detection in non-ceramic insulators (NCI). In this work, distribution class 33 kV NCI samples with no defects, air voids in silicone rubber, cracks in the fiberglass core and small metallic inclusion between the fiber core and shank were inspected. The microwave inspection system utilizes an open-ended rectangular waveguide
IEEE Transactions on Instrumentation and Measurement, 2014
ABSTRACT This paper presents a novel artificial neural network (ANN)-based near-field microwave n... more ABSTRACT This paper presents a novel artificial neural network (ANN)-based near-field microwave nondestructive testing technique for defect detection and classification in nonceramic insulators (NCI). In this paper, distribution class 33-kV NCI samples with no defects, air voids in silicone rubber and fiber glass core, cracks in the fiberglass core, and small metallic inclusion between the fiber core and shank were inspected. The microwave inspection system uses an open-ended rectangular waveguide sensor operating in the near-field at a frequency of 24 GHz. A data acquisition system was used to record the measured data. ANN was trained to classify the different types of defects. The results showed that all defects were detected and classified correctly with high recognition rates.
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