Ahmed M. Hassan

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This paper presents a 2-D model to calculate the electric current densities and the biopotential differences generated due to a breast cancerous cell during the hyperpolarization of the G1/synthesis (G1/S) transition. The proposed model is based on semiconductor diffusion-drift analysis, and aims to understand the biophysics associated with growing breast(More)
This study presents a model to simulate the electrophysiological activities of multiple Michigan Cancer Foundation-7 (MCF-7) cells, the most studied breast cancer cell line. The intercellular spacing of MCF-7 cells is estimated using the effective diffusion coefficient. Nonuniform finite-difference discretization is implemented to accommodate for the(More)
A two dimensional diffusion-drift model is developed to simulate the electrical activities of a breast cancerous cell during the hyperpolarization which occurs at the G1/S transition. The model focuses on calculating the temporal and the spatial patterns of the electric current densities and biopotentials generated at the cell boundary and its surroundings.(More)
An experimental setup is under development for testing microwave detection and imaging algorithms. The setup uses broadband antennas to send and receive electromagnetic waves from around the target. The system employs only two antennas; one transmitter and one receiver. These antennas are rotated around the target controlled by the Labview program. The(More)
Clinical studies have shown compelling data of elevated biopotential signals recorded noninvasively from the breasts of women with breast cancer. While these data are compelling and show a strong potential for use in the noninvasive early detection of breast cancer, there remains significant knowledge gaps which must be addressed before this technology can(More)
—Recently, a diffusion-drift model was developed to simulate the biopotential signals and the electric current densities generated by single and few dividing MCF-7 cells, the most studied breast cancer cell line. In this work, the modeling is extended to simulate tumors containing hundreds of dividing MCF-7 cells. The dividing cells are assembled into(More)
Project Objectives The original project objectives have not changed. They are:  Crop Identification and Crop Area Estimation: Water scarcity, fast dwindling of finite water resources and steady increase in the demand for food are the major obstacles for attaining sustainability of agriculture in Saudi Arabia. It is becoming increasingly difficult to(More)
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