โ Scribed by Roy Szweda
No coin nor oath required. For personal study only.
I matter of imperfect seals By Roy Szwe,da, Contributing Editor From time to time in Sealing Technology we have looked at the issues surrounding the matter of imperfect seals. Seals, whether worn out or improperly fitted, are causing leakages which are literally costing us the earth. Worldwide, fugitive emissions from leaking valves, pumps and flanges amount to over a million metric tonnes per annum. Reduction -or better still, elimination -of fugitive emissions could save industry many millions of dollars and prolong scarce resources. This article looks at recent developments in sealing products and research to help alleviate the problems associated with fugitive emissions.
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๐ SIMILAR VOLUMES
If some kinds of symmetry breaking occur at the cosmological phase transition, the production of topological and/or non-topological defects can be expected. Within the core of such defects, symmetric states, that is, the high energy states where the expectation value of the scalar field equals zero