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Williams used a 10 trading day period and considered values below −80 as oversold and above −20 as overbought. But they were not to be traded directly, instead his rule to buy an oversold was %R reaches −100%. Five trading days pass since −100% was last reached %R rises above −95% or −85%. or conversely to sell an overbought condition
The Hazen–Williams equation is an empirical relationship that relates the flow of water in a pipe with the physical properties of the pipe and the pressure drop caused by friction. It is used in the design of water pipe systems [ 1 ] such as fire sprinkler systems , [ 2 ] water supply networks , and irrigation systems.
Jannik Bjerrum (son of Niels Bjerrum) developed the first general method for the determination of stability constants of metal-ammine complexes in 1941. [1] The reasons why this occurred at such a late date, nearly 50 years after Alfred Werner had proposed the correct structures for coordination complexes, have been summarised by Beck and Nagypál. [2]
The Irving–Williams series refers to the relative stabilities of complexes formed by transition metals. In 1953 Harry Irving and Robert Williams observed that the stability of complexes formed by divalent first-row transition metal ions generally increase across the period to a maximum stability at copper: Mn(II) < Fe(II) < Co(II) < Ni(II) < Cu(II) > Zn(II).
Here, values of shift factor a T are obtained by horizontal shift log(a T) of creep compliance data plotted vs. time or frequency in double logarithmic scale so that a data set obtained experimentally at temperature T superposes with the data set at temperature T r. A minimum of three values of a T are needed to obtain C 1, C 2, and typically ...
J.M. Harrison and R.J. Williams note that "virtually all of the models that have been successfully analyzed in classical queueing network theory are models having a so-called product-form stationary distribution" [9] More recently, product-form solutions have been published for Markov process algebras (e.g. RCAT in PEPA [11] [12]) and ...
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Donchian channel with support and resistance zones on EUR/USD. The Donchian channel is an indicator used in market trading developed by Richard Donchian. [1] It is formed by taking the highest high and the lowest low of the last n periods.