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Alghurair D.,Higher Institute for Telecommunication and Navigation | Al-Rawi S.S.,Gulf University
2013 The International Conference on Technological Advances in Electrical, Electronics and Computer Engineering, TAEECE 2013 | Year: 2013

The last decade has a rapid development in the structure of a programmable processor called Field Programmable Gate Array (FPGA), which is used to implement a hardware circuit to perform the functions for high speed application. Sobel edge detection is a method to find the edge pixels in an image. This method exploits the change in intensity with respect to neighboring pixels. This paper introduces the implementation of Sobel edge detection method in the FPGA processor [1,2]. The implementation is performed based on two FPGA families from Xilinx, Spartan and Virtex. The cost of these implementations using Spartan3 is 41.66%, Spartan6 is 70%, Virtex5 is 3.69% and Virtex6 is 3.61%. The frequency is 169.188 MHz for using Spartan3, 45.7 MHz for Spartan6, 85.060 MHz for Virtex5 and 65.8 MHz for Virtex6. © 2013 IEEE.

Al-Khalidy M.M.M.,Gulf University
Saudi International Electronics, Communications and Photonics Conference 2011, SIECPC 2011 | Year: 2011

The main contribution of this paper is to present and discusses a new approach for development of a kinematics model and control strategy for a Nonholonomic Wheeled Mobile Robot WMR. Dynamic model is involved, the linearization of the model is also presented, and stability analysis is discussed. Extensive simulation results for the proposed controller are presented. © 2011 IEEE.

Elbialy S.,Gulf University | Elbialy S.,Sudan University of Science and Technology | Mahmoud A.,Sudan University of Science and Technology | Mahmoud A.,Fayoum University | And 2 more authors.
Journal of Flood Risk Management | Year: 2014

Hydrological modelling is a powerful tool for hydrologists and engineers involved in the planning and management of water resources. With the recent advent of computational power and the growing availability of spatial data, remote sensing and geographical information systems technologies can augment to a great extent the conventional methods used in rainfall run-off studies. That means it is possible to accurately describe the characteristics of watershed in particularly when determining the run-off response to rainfall inputs. The main objective of this study is to apply the potential application of spaceborne synthetic aperture radar (SAR) data (i.e. TerraSAR-X and Advanced Land Observing Satellite/Phased Array type L-band Synthetic Aperture Radar (ALOS PALSAR) for soil moisture retrieval) and to improve the spatial input parameters required for hydrological modelling. For the spatial database creation, a high-resolution 2-m aerial laser scanning digital terrain model, soil map, and land use map were used. Rainfall records were transformed into a run-off through hydrological parameterisation of the watershed using Hydrologic Engineering Center's Hydrologic Modelling System (HEC-HMS) software for rainfall run-off simulation. The Soil Conservation Services Curve Number and soil moisture accounting loss methods were selected to calculate the infiltration losses. In this research, soil moisture was derived from two different types of spaceborne SAR data: TerraSAR-X and ALOS PALSAR (L-band). The developed integrated hydrological model was applied to a flood prone area: Gottleuba Catchment in Pirna (Saxony, Germany). For model validation, 10 years historical precipitation data were used. The validated model was further optimised using the extracted soil moisture from SAR data. The simulation results showed a reasonable match between the simulated and the observed hydrographs. Hence, this paper confirms that TerraSAR-X and ALOS PALSAR (L-band) have a high potential for soil moisture mapping as a useful source of information and technique in hydrological modelling. © 2013 The Chartered Institution of Water and Environmental Management (CIWEM) and John Wiley & Sons Ltd.

Walker C.M.,Indiana University of Pennsylvania | Sockman B.R.,East Stroudsburg University | Koehn S.,Gulf University
TechTrends | Year: 2011

Understanding the covert events surrounding the undergraduate students' experience is essential to educators' and counselors' involvement in their success. Research into bullying behaviors has documented victims' feelings of anger, sadness and poor concentration. Affordable technologies have propagated this concern into cyberspace. This exploratory study evaluated the instances of cyberbullying experienced by undergraduate students. Additionally, the forms of technology utilized in cyberbullying were queried. A 27-item survey was distributed to 120 undergraduate students in social science, technology and education departments. The majority of all respondents (54%) and 100% of male respondents indicated they knew someone who had been cyberbullied. The perpetrators primarily used cell phones, Facebook and instant messaging. The study results provide legitimate concerns regarding the undergraduate students' exposure to cyberbullying and numerous areas for future research. © 2011 Springer Science+Business Media, Inc.

Dutreil S.,Tulane University | Rice J.,Tulane University | Merritt D.,Hemostasis Thrombosis Treatment Center | Kuebler E.J.,Gulf University
Haemophilia | Year: 2011

The Parents Empowering Parents (PEP) Program gives parents tools to improve the lives of children with bleeding disorders. The aim of this study was to evaluate the efficacy of PEP. Eleven haemophilia treatment centres (HTC) participated in the study and 301 participants completed the survey. Parents who did not attend PEP were divided into three groups based on their reasons for not attending: (Not Offered, Bad Time and Don't Need). Those who attended (Attended) PEP reported less use of yelling, spanking, slapping and giving-in after attending PEP. The Not Offered group used Praising (P=0.016), Natural Consequences (P=0.002), Being Consistent (P=0.016), Ignoring (P=0.006), Distracting (P=0.002), Setting Limits (P=0.009), Giving Choices (P=0.049), Being Consistent (P=0.014) and Distracting (P=0.019) less than all other groups. The Bad Time group used Time-Out (P=0.037) and Ignoring (P=0.019) more than the other groups that did not attend PEP. The Don't Need group used Spanking (P=0.008) and Time-Out (P=0.003) and Yelling (P=0.014) less than all other groups. Attending PEP seems to decrease the use of negative parenting techniques. Those who reported PEP was not offered to them used positive parenting techniques less than all other participants. © 2011 Blackwell Publishing Ltd.

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