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Wear and tear is damage that naturally and inevitably occurs as a result of normal wear or aging. It is used in a legal context for such areas as warranty contracts from manufacturers , which usually stipulate that damage from wear and tear will not be covered.
Allostatic load is "the wear and tear on the body" which accumulates as an individual is exposed to repeated or chronic stress. The term was coined by Bruce McEwen and Eliot Stellar in 1993. It represents the physiological consequences of chronic exposure to fluctuating or heightened neural or neuroendocrine response which results from repeated ...
Fine (F or FN) is "as new" but allowing for the normal effects of time on an unused book that has been protected. A fine book shows no damage. Very good (VG) describes a book that is worn but untorn. For many collectors this is the minimum acceptable condition for all but the rarest items.
The wear rate is affected by factors such as type of loading (e.g., impact, static, dynamic), type of motion (e.g., sliding, rolling), temperature, and lubrication, in particular by the process of deposition and wearing out of the boundary lubrication layer. [5] Depending on the tribosystem, different wear types and wear mechanisms can be observed.
Fixed assets will decline in value after they are purchased for use in production, due to wear and tear, changed market valuation and possibly market obsolescence. Thus, CFC represents a compensation for the loss of value of fixed assets to an enterprise. According to the 2008 manual of the United Nations System of National Accounts,
In semiconductor devices, parasitic structures, irrelevant for normal operation, become important in the context of failures; they can be both a source and protection against failure. Applications such as aerospace systems, life support systems, telecommunications, railway signals, and computers use great numbers of individual electronic ...
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Contact protection methods are designed to mitigate the wear and degradation occurring during the normal use of contacts within an electromechanical switch, relay or contactor and thus avoid an excessive increase in contact resistance or switch failure.