Peter N. Green

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The 16S rRNA gene sequences of 12 strains of Thiobacillus thioparus held by different culture collections have been compared. A definitive sequence for the reference type strain (Starkey; ATCC 8158T) was obtained. The sequences for four examples of the Starkey type strain were essentially identical, confirming their sustained identity after passage through(More)
The respiratory quinone composition of the obligate methane-utilizing bacterium Methylomonas rubra was examined. A single lipoquinone was isolated which on examination by thin-layer chromatography cochromatographed with coenzyme Q. Reverse-phase partition and argentation high performance liquid chromatography demonstrated the lipoquinone did not correspond(More)
Nuclear power provides a significant portion of our current energy demand and is likely to become more wide spread with growing world population. However, the radioactive waste generated in these power plants must be stored for around 60 years in underwater storage pools before permanent disposal. These underwater storage environments must be carefully(More)
The development of small-scale sensor platforms for the internal monitoring of aqueous processes creates a range of challenges in terms of the provision of mobility. De-coupled x-y plane and z-axis movement, the need for low power consumption and a minimum of 4 degrees of freedom means that the suitability of conventional propulsion systems needs to be(More)
Micro-Autonomous Underwater Vehicles (μAUVs) can form the basis of mobile underwater sensor networks for monitoring sub-surface cluttered environments. There are numerous technical challenges involved in constructing such vehicles using off-the-shelf components. This paper presents progress to date in the design of such a system, the problems(More)
Micro-Autonomous Underwater Vehicles (μAUVs) can be used as part of underwater sensor networks in to monitor industrial processes. The high manoeuvrability requirements dictate that traditional AUV designs are not suitable. A prototype μAUV has been developed with independent movement capabilities in the horizontal and vertical planes. This(More)
Mobile Underwater Sensor Networks provide an attractive solution to the problem of obtaining measurements from within liquid-based industrial processes. Most underwater vehicles are aimed at oceanographic applications and are therefore too large to be used in comparatively small processes. This paper sets out the design considerations for the development of(More)
Swarms of micro-autonomous underwater vehicles (μAUVs) are an attractive solution to the problem of nuclear storage pond monitoring. Independent movement in the horizontal and vertical planes is necessary to maximize manoeuvrability. This paper presents a comparison of different control strategies for independent depth control using both simulations and(More)