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Reliability engineering is a sub-discipline of systems engineering that emphasizes the ability of equipment to function without failure. Reliability is defined as the probability that a product, system, or service will perform its intended function adequately for a specified period of time, OR will operate in a defined environment without failure. [1]
Passive redundancy uses excess capacity to reduce the impact of component failures. One common form of passive redundancy is the extra strength of cabling and struts used in bridges. This extra strength allows some structural components to fail without bridge collapse. The extra strength used in the design is called the margin of safety.
Common failures in control of work systems are a failure to follow the permit-to-work or isolation management procedures, risk assessments that are not suitable and sufficient to identify the risks, and/or the control measures and a combination of the two. [4] PTW is a means of coordinating different work activities to avoid conflicts.
Collapsed barn at Hörsne, Gotland, Sweden Building collapse due to snow weight. Structural integrity and failure is an aspect of engineering that deals with the ability of a structure to support a designed structural load (weight, force, etc.) without breaking and includes the study of past structural failures in order to prevent failures in future designs.
The term "failover", although probably in use by engineers much earlier, can be found in a 1962 declassified NASA report. [2] The term "switchover" can be found in the 1950s [3] when describing '"Hot" and "Cold" Standby Systems', with the current meaning of immediate switchover to a running system (hot) and delayed switchover to a system that needs starting (cold).
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Breakfast (361 calories) 1 cup low-fat plain strained Greek-style yogurt. ¼ cup sliced almonds. ½ cup cherries. 1 serving No-Added-Sugar Chia Seed Jam. A.M. Snack (193 calories)
Roberts lamented that “public officials,” whom he also did not name, had “regrettably” attempted to intimidate judges by “suggesting political bias in the judge’s adverse rulings ...