As a result of increasing regulation, however, and growing recognition within the gas industry that its future depends on public acceptance, the treatment of flowback water has improved greatly.

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Though they are relied upon for reconnaissance and surveillance missions, UAVs can be used in a wide variety of applications such as securing pipelines for the oil and gas industry, road patrol or even face recognition.

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Moreover, as Britain's recently deregulated electricity, gas and telecoms companies have discovered, brand recognition or loyalty seems to be a dream in the utilities business: having been assured of a basic level and quality of service, most consumers buy on price alone, and switch allegiances frequently.

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The electronic nose is an array of nano-scale gas sensors--the maximized surface area of the nano-particles allows the most gas to pass over them--along with pattern recognition technology that can create a digital fingerprint (or noseprint, as the case may be) of specific smells.

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