Matthew M. Haag

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The Undersea Networking environment presents many challenges, such as limited network throughput and extreme latency. It is further hampered by the challenges faced with all Mobile Ad-Hoc Networks, with regard to rapidly changing network topology, AdHoc routing overhead, and dynamic network size. AUSNet (Autonomous Undersea Systems Network) is an NSF funded(More)
Isolation of the relevant organism in patients with spondylitis even after an open biopsy is successful only in 75-90%. The rare case of an Eikenella corrodens-induced spondylitis is presented, which could only be identified using 16S ribosomal DNA polymerase chain reaction following unsuccessful microbiological cultivation. Eikenella corrodens is a(More)
The Solar-powered Autonomous Underwater Vehicle (SAUV) platform has been developed over the past several years as a means to achieve long-endurance cooperative missions, and the design of mobile routing protocols has become one of the main areas of focus during this process. This paper reports on the lessons learned from the design, simulation-based(More)
AUSNet is a functional network of autonomous undersea vehicles. We present two novel algorithms to enhance AUSNet. In live in-water testing, a packet queueing problem in which stale status packets accummulated while AUVs were out of transmission range, was discovered. A replace-and-hold algorithm was designed to replace stale status packets. A(More)
101 patients with lumbar disc herniation were treated by transforaminal endoscopic microdiscectomy between 5/94 and 6/97. Caused by technical problems the procedure could not be successfully completed in 3 patients. They must be excluded from the presented study as 9 others, who were lost for follow up. So 89 patients were followed with a median follow-up(More)
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