Hassan Hejase | University of Texas of the Permian Basin (original) (raw)
Dr. Hejase earned his Ph.D. degree in Electrical Engineering from Syracuse University, USA in 1987. He is currently a visiting professor of Electrical Engineering at the University of Texas Permian Basin, USA. During the past 37 years, he has served on the faculties of the University of Kentucky, USA, ITESM-Campus Estado de México, Mexico, American University of Beirut, Lebanon, UAE University, UAE, and the American University of Technology, Lebanon. At UAE University, he served as EE Department Chairman, EE graduate program coordinator, and as an advisor to the Vice-Chancellor where he led ABET accreditation efforts as well as the establishment of EE graduate program. At AUT, he served as Dean of the Faculty of Applied Sciences. Dr. Hejase has accumulated over 20 years of experience in program and institutional accreditation. He taught both undergraduate and graduate-level courses in the USA, Mexico, Lebanon, and the United Arab Emirates. His research interests span the areas of computational electromagnetics and modeling of renewable energy and power systems. He is a senior member of the IEEE.
Phone: +1-614-208-1299
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Papers by Hassan Hejase
Journal of Solar Energy Engineering, 2013
The geographical location (Latitude: 24 deg 28′ N and Longitude: 54 deg 22′ E) of Abu Dhabi city ... more The geographical location (Latitude: 24 deg 28′ N and Longitude: 54 deg 22′ E) of Abu Dhabi city in the United Arab Emirates (UAE) favors the development and utilization of solar energy. This paper presents an artificial neural network (ANN) approach for the estimation of monthly mean global solar radiation (GSR) on a horizontal surface in Abu Dhabi. The ANN models are presented and implemented on a 16-yr measured meteorological data set for Abu Dhabi comprising the maximum daily temperature, mean daily wind speed, mean daily sunshine hours, and mean daily relative humidity between 1993 and 2008. The meteorological data between 1993 and 2003 are used for training the ANN and data between 2004 and 2008 are used for testing the estimated values. Multilayer perceptron (MLP) and radial basis function (RBF) are used as ANN learning algorithms. The results attest to the capability of ANN techniques and their ability to produce accurate estimation models.
The major problem with printed antennas has been dealing with the Green's function which con... more The major problem with printed antennas has been dealing with the Green's function which contains Sommerfeld-type integrals that require a careful numerical treatment. In the present work, the printed wire-loop antenna has been analyzed rigorously through Fourier series expansion of the current distribution. The procedure becomes remarkably simple because of the orthogonality of the expansion functions. A Green's function technique is used in which a set of Pocklington-type integral equations (EFIE) is derived and transformed using the method of moments into a set of simultaneous linear equations for the unknown current coefficients. The input impedance is computed as a function of loop size with the dielectric constant as a parameter. The current distribution for the resonant loop case is also presented.>
IEEE Transactions on Microwave Theory and Techniques, 1993
The geographical location (Latitude: 24 deg 28′ N and Longitude: 54 deg 22′ E) of Abu Dhabi city ... more The geographical location (Latitude: 24 deg 28′ N and Longitude: 54 deg 22′ E) of Abu Dhabi city in the United Arab Emirates (UAE) favors the development and utilization of solar energy. This paper presents an artificial neural network (ANN) approach for the estimation of monthly mean global solar radiation (GSR) on a horizontal surface in Abu Dhabi. The ANN models are presented and implemented on a 16-yr measured meteorological data set for Abu Dhabi comprising the maximum daily temperature, mean daily wind speed, mean daily sunshine hours, and mean daily relative humidity between 1993 and 2008. The meteorological data between 1993 and 2003 are used for training the ANN and data between 2004 and 2008 are used for testing the estimated values. Multilayer perceptron (MLP) and radial basis function (RBF) are used as ANN learning algorithms. The results attest to the capability of ANN techniques and their ability to produce accurate estimation models.
Bioelectromagnetics, 1993
Ieee Trans Microwave Theory, 1994
Ieee Transactions on Magnetics, 1993
2012 International Conference on Renewable Energies for Developing Countries (REDEC), 2012
Journal of Magnetism and Magnetic Materials, 2012
IEEE Transactions on Magnetics, 2000
IEEE Transactions on Electromagnetic Compatibility, 1993
Electric Power Components and Systems, 2004
Bioelectromagnetics, 1993
Journal of Solar Energy Engineering, 2013
The geographical location (Latitude: 24 deg 28′ N and Longitude: 54 deg 22′ E) of Abu Dhabi city ... more The geographical location (Latitude: 24 deg 28′ N and Longitude: 54 deg 22′ E) of Abu Dhabi city in the United Arab Emirates (UAE) favors the development and utilization of solar energy. This paper presents an artificial neural network (ANN) approach for the estimation of monthly mean global solar radiation (GSR) on a horizontal surface in Abu Dhabi. The ANN models are presented and implemented on a 16-yr measured meteorological data set for Abu Dhabi comprising the maximum daily temperature, mean daily wind speed, mean daily sunshine hours, and mean daily relative humidity between 1993 and 2008. The meteorological data between 1993 and 2003 are used for training the ANN and data between 2004 and 2008 are used for testing the estimated values. Multilayer perceptron (MLP) and radial basis function (RBF) are used as ANN learning algorithms. The results attest to the capability of ANN techniques and their ability to produce accurate estimation models.
The major problem with printed antennas has been dealing with the Green's function which con... more The major problem with printed antennas has been dealing with the Green's function which contains Sommerfeld-type integrals that require a careful numerical treatment. In the present work, the printed wire-loop antenna has been analyzed rigorously through Fourier series expansion of the current distribution. The procedure becomes remarkably simple because of the orthogonality of the expansion functions. A Green's function technique is used in which a set of Pocklington-type integral equations (EFIE) is derived and transformed using the method of moments into a set of simultaneous linear equations for the unknown current coefficients. The input impedance is computed as a function of loop size with the dielectric constant as a parameter. The current distribution for the resonant loop case is also presented.>
IEEE Transactions on Microwave Theory and Techniques, 1993
The geographical location (Latitude: 24 deg 28′ N and Longitude: 54 deg 22′ E) of Abu Dhabi city ... more The geographical location (Latitude: 24 deg 28′ N and Longitude: 54 deg 22′ E) of Abu Dhabi city in the United Arab Emirates (UAE) favors the development and utilization of solar energy. This paper presents an artificial neural network (ANN) approach for the estimation of monthly mean global solar radiation (GSR) on a horizontal surface in Abu Dhabi. The ANN models are presented and implemented on a 16-yr measured meteorological data set for Abu Dhabi comprising the maximum daily temperature, mean daily wind speed, mean daily sunshine hours, and mean daily relative humidity between 1993 and 2008. The meteorological data between 1993 and 2003 are used for training the ANN and data between 2004 and 2008 are used for testing the estimated values. Multilayer perceptron (MLP) and radial basis function (RBF) are used as ANN learning algorithms. The results attest to the capability of ANN techniques and their ability to produce accurate estimation models.
Bioelectromagnetics, 1993
Ieee Trans Microwave Theory, 1994
Ieee Transactions on Magnetics, 1993
2012 International Conference on Renewable Energies for Developing Countries (REDEC), 2012
Journal of Magnetism and Magnetic Materials, 2012
IEEE Transactions on Magnetics, 2000
IEEE Transactions on Electromagnetic Compatibility, 1993
Electric Power Components and Systems, 2004
Bioelectromagnetics, 1993