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  2. Wear coefficient - Wikipedia

    en.wikipedia.org/wiki/Wear_coefficient

    Traditionally, the wear of materials has been characterized by weight loss and wear rate. However, studies have found that wear coefficient is more suitable. The reason being that it takes the wear rate, the applied load, and the hardness of the wear pin into account. Although, measurement variations by an order of 10-1 have been observed, the ...

  3. Wear - Wikipedia

    en.wikipedia.org/wiki/Wear

    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.

  4. Deferment rate - Wikipedia

    en.wikipedia.org/wiki/Deferment_rate

    Following the Sportelli case [4] the Lands Tribunal adopted the so-called Sportelli formula to determine the rate, as follows.. q = r* + P – g* Where q is the deferment rate, [5] r* the real risk free rate, P the risk premium for the residential property market, and g* the real long-term growth in house prices.

  5. Archard equation - Wikipedia

    en.wikipedia.org/wiki/Archard_equation

    The Archard wear equation is a simple model used to describe sliding wear and is based on the theory of asperity contact. The Archard equation was developed much later than Reye's hypothesis [] (sometimes also known as energy dissipative hypothesis), though both came to the same physical conclusions, that the volume of the removed debris due to wear is proportional to the work done by friction ...

  6. 4 predictions for the US housing market in 2025, according to ...

    www.aol.com/news/4-predictions-us-housing-market...

    Zillow predicts the US housing market will keep shifting in 2025.. The real-estate firm says the average home value rose by 2.6% annually in October. It says homebuying activity should pick up ...

  7. Wall St falls on caution over Fed decision after strong ...

    www.aol.com/futures-waver-yields-rise-ahead...

    Technology stocks weighed on Wall Street on Tuesday, as investors grew cautious ahead of the Federal Reserve's interest rate decision this week following a stronger-than-expected retail sales reading.

  8. Abrasion (mechanical) - Wikipedia

    en.wikipedia.org/wiki/Abrasion_(mechanical)

    The Archard equation is a simple model used to describe sliding wear and is based on the theory of asperity contact. [1] = where: Q is the total volume of wear debris produced K is the wear coefficient W is the total normal load L is the sliding distance H is the hardness of the softest contacting surfaces

  9. Good vibes from housing, confidence figures wear off ... - AOL

    www.aol.com/news/2009-04-28-good-vibes-from...

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