Current Search: Wang, Yu. (x)
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Title
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INVESTIGATION OF CORROSION OF REINFORCING STEEL BY USING ULTRASONIC TECHNIQUES AND SPECTRAL ANALYSIS.
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Creator
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WANG, YUN YU, Florida Atlantic University
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Abstract/Description
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In this investigation an ultrasonic technique and spectral analysis were employed to detect corrosion of reinforcing steel in concrete under conditions of accelerated testing. Various properties of a transmitted ultrasonic pulse were determined, and it was concluded that the transfer function provided the most realistic possibility for detection of corrosion and cracking. The most meaningful correlations of the transfer function with corrosion and cracking events were for situations where the...
Show moreIn this investigation an ultrasonic technique and spectral analysis were employed to detect corrosion of reinforcing steel in concrete under conditions of accelerated testing. Various properties of a transmitted ultrasonic pulse were determined, and it was concluded that the transfer function provided the most realistic possibility for detection of corrosion and cracking. The most meaningful correlations of the transfer function with corrosion and cracking events were for situations where the temporal variation of the transfer function at the particular frequency was small. The appropriateness of ultrasonic parameters with regard to problems involving corrosion of reinforcing steel is discussed.
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Date Issued
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1979
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PURL
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http://purl.flvc.org/fcla/dt/14006
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Subject Headings
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Concrete--Corrosion, Seawater Corrosion
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Format
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Document (PDF)
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Title
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Label routing protocol: A new cross-layer protocol for multi-hop ad hoc wireless network.
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Creator
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Wang, Yu., Florida Atlantic University, Wu, Jie, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
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Abstract/Description
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Compared to the traditional wireless network, the multi-hop ad hoc wireless network (simply called ad hoc networks) is self-configurable, dynamic, and distributed. During the past few years, many routing protocols have been proposed for this particular network environment. While in wired and optical networks, multi-protocol label switching (MPLS) has clearly shown its advantages in routing and switching such as flexibility, high efficiency, scalability, and low cost, however MPLS is complex...
Show moreCompared to the traditional wireless network, the multi-hop ad hoc wireless network (simply called ad hoc networks) is self-configurable, dynamic, and distributed. During the past few years, many routing protocols have been proposed for this particular network environment. While in wired and optical networks, multi-protocol label switching (MPLS) has clearly shown its advantages in routing and switching such as flexibility, high efficiency, scalability, and low cost, however MPLS is complex and does not consider the mobility issue for wireless networks, especially for ad hoc networks. This thesis migrates the label concept into the ad hoc network and provides a framework for the efficient Label Routing Protocol (LRP) in such a network. The MAC layer is also optimized with LRP for shorter delay, power saving, and higher efficiency. The simulation results show that the delay is improved significantly with this cross-layer routing protocol.
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Date Issued
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2006
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PURL
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http://purl.flvc.org/fcla/dt/13321
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Subject Headings
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Computer network protocols, Wireless communication systems, Mobile computing, Computer algorithms, MPLS standard, Operating systems (Computers)
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Format
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Document (PDF)