Dr. Mohamed Saafi Profile

Dr. Mohamed Saafi

at Univ of Strathclyde

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Author

Publications (5)

Proceedings Article | 28 September 2015 Paper

Metal-packaged fibre Bragg grating strain sensors for surface-mounting onto spalled concrete wind turbine foundations

M. Perry, G. Fusiek, I. McKeeman, P. Niewczas, M. Saafi

Proceedings Volume 9634, 963466 (2015) https://doi.org/10.1117/12.2190188

KEYWORDS: Sensors, Fiber Bragg gratings, Prototyping, Fiber optics sensors, Optical testing, Capillaries, Structural health monitoring, Epoxies, Optical fibers, Wind turbine technology

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Proceedings Article | 12 May 2006 Paper

Study of wireless communication between MEMS sensing nodes

José Rivera, Mohamed Saafi, Kaveh Heidary

Proceedings Volume 6248, 62480Z (2006) https://doi.org/10.1117/12.662293

KEYWORDS: Sensors, Cell phones, Microelectromechanical systems, Humidity, Wireless communications, Metals, Neural networks, Sensor networks, Cements, Environmental sensing

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Proceedings Article | 11 April 2006 Paper

Nanotechnology and MEMS-based systems for civil infrastructure safety and security: Opportunities and challenges

Nidia Robinson, Mohamed Saafi

Proceedings Volume 6174, 61742S (2006) https://doi.org/10.1117/12.659287

KEYWORDS: Microelectromechanical systems, Information security, Safety, Sensors, Bridges, Nanotechnology, Defense and security, Molecular bridges, Sensing systems, Humidity

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Critical civil infrastructure systems such as bridges, high rises, dams, nuclear power plants and pipelines present a major investment and the health of the United States' economy and the lifestyle of its citizens both depend on their safety and security. The challenge for engineers is to maintain the safety and security of these large structures in the face of terrorism threats, natural disasters and long-term deterioration, as well as to meet the demands of emergency response times. With the significant negative impact that these threats can have on the structural environment, health monitoring of civil infrastructure holds promise as a way to provide information for near real-time condition assessment of the structure's safety and security. This information can be used to assess the integrity of the structure for post-earthquake and terrorist attacks rescue and recovery, and to safely and rapidly remove the debris and to temporary shore specific structural elements. This information can also be used for identification of incipient damage in structures experiencing long-term deterioration. However, one of the major obstacles preventing sensor-based monitoring is the lack of reliable, easy-to-install, cost-effective and harsh environment resistant sensors that can be densely embedded into large-scale civil infrastructure systems. Nanotechnology and MEMS-based systems which have matured in recent years represent an innovative solution to current damage detection systems, leading to wireless, inexpensive, durable, compact, and high-density information collection. In this paper, ongoing research activities at Alabama A&M University (AAMU) Center for Transportation Infrastructure Safety and Security on the application of nanotechnology and MEMS to Civil Infrastructure for health monitoring will presented. To date, research showed that nanotechnology and MEMS-based systems can be used to wirelessly detect and monitor different damage mechanisms in concrete structures as well as monitor critical structures' stability during floods and barge impact. However, some technical issues that needs to be addressed before full implementation of these new systems and will also be discussed in this paper.

Proceedings Article | 30 March 2006 Paper

Safety and security monitoring of dams using nano-micromachined-based surface acoustic wave (SAW) sensors

Wayne Ross, Mohamed Saafi, Peter Romine, Zhigang Xiao, David Pett

Proceedings Volume 6167, 61670F (2006) https://doi.org/10.1117/12.657664

KEYWORDS: Sensors, Radar, Reflectors, Antennas, Chlorine, Transponders, Safety, Signal to noise ratio, Polymers, Acoustics

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Proceedings Article | 29 July 2004 Paper

Embedded MEMS for health monitoring and management of civil infrastructure

Mohamed Saafi, Peter Romine

Proceedings Volume 5391, (2004) https://doi.org/10.1117/12.543590

KEYWORDS: Microelectromechanical systems, Sensors, Antennas, Temperature metrology, Carbon dioxide, Resistors, Resistance, Chlorine, Polymers, Structural health monitoring

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