منابع مشابه
Guided Waves for NDT and Permanently Installed Monitoring
There is a gradual shift in emphasis from periodic inspection with detachable transducers (NDT) to permanently installed monitoring systems giving information about the structural integrity at preprogrammed intervals or on demand (SHM). The drivers of this change are discussed, together with the requirements of successful SHM systems. Particular issues are that NDT often involves scanning and t...
متن کاملRate-based structural health monitoring using permanently installed sensors
Permanently installed sensors are becoming increasingly ubiquitous, facilitating very frequent in situ measurements and consequently improved monitoring of 'trends' in the observed system behaviour. It is proposed that this newly available data may be used to provide prior warning and forecasting of critical events, particularly system failure. Numerous damage mechanisms are examples of positiv...
متن کاملLong Term Stability and Reliability of Permanently Installed On - Line UV Sensors Kyle
UV sensors are typically very sensitive to aging and solarization effects of the harsh environment in which they are used. Minimizing the long term effects of UV on a sensor/optics is extremely challenging, especially with on-line installed sensors used for continuous monitoring on a 24/7 basis. This paper describes a patented method of reducing the effects of aging and solarization to a minima...
متن کاملSecondary septicaemia from intravenous cannulae.
Within a period of only seven months three patients in one hospital under treatment with antibiotics by intravenous infusion developed secondary bloodstream infection originating from the site of insertion of the cannula. Two of these infections were fatal. Precautions suggested include strict asepsis, the skin being sterilized with iodine in spirit solution; antibiotic spray; and changing the ...
متن کاملPermanently Implanted Transvenous Pacemakers
Three patients with complete heart block had a high resistance to electrical stimulation of the endocardium through transvenous pacemaker systems. One patient died; one needed reoperation for implantation of epicardial electrodes; and the third required a generator of higher current. The present enthusiasm for permanent transvenous implantation of pacemakers must be tempered somewhat by the kno...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1972
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(72)85646-7