نتایج جستجو برای: pre failure mechanism
تعداد نتایج: 1203836 فیلتر نتایج به سال:
This paper presents application of Rough Sets algorithms to prediction of component failures in aerospace domain. To achieve this we first introduce a data preprocessing approach that consists of case selection, data labeling and attribute reduction. We also introduce a weight function to represent the importance of predictions as a function of time before the actual failure. We then build seve...
This paper studies price shocks on urban fringe properties surrounding Tucson, Arizona to test if construction on neighboring parcels imposes a negative externality and if investors are able to anticipate the timing of sprawl. Three preliminary estimations are performed, building from classical tests to a rate of return-based hedonic regression. Construction on parcels adjacent to isolated exur...
Background Recruitment to clinical trials remains challenging, particularly in primary care settings. Initial projections of participant recruitment should be as accurate as possible, in order to avoid the financial, clinical and ethical costs of trial extensions or failures. However, estimation of recruitment rates is challenging and often poorly executed. We used qualitative methods to explor...
The integration of safety-relevant software and software developed to normal quality standards in the same embedded system needs a protection mechanism to ensure that the safety-relevant software cannot be adversely affected by failures in the rest the system. The protection mechanism is usually assumed to be provided by the "system software", which implies that the system software must be deve...
OBJECTIVES This study sought to examine the long-term outcomes of patients hospitalized with heart failure and atrial fibrillation. BACKGROUND Atrial fibrillation is common among patients hospitalized with heart failure. Associations of pre-existing and new-onset atrial fibrillation with long-term outcomes are unclear. METHODS We analyzed 27,829 heart failure admissions between 2006 and 200...
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