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Youden's index is often used in conjunction with receiver operating characteristic (ROC) analysis. [3] The index is defined for all points of an ROC curve, and the maximum value of the index may be used as a criterion for selecting the optimum cut-off point when a diagnostic test gives a numeric rather than a dichotomous result.
Zhonghua Secondary School was established on 15 September 1911 as a Chinese-medium girls' school in response to Sun Yat-sen's suggestion for schools to be established for girls. It was the first Chinese-medium girls' school in Singapore, founded by Tay Peng Teng, Puan Yeow Pong and the Chinese community.
Sometimes other ratios are more convenient than the 3 dB point. For instance, in the case of the Chebyshev filter it is usual to define the cutoff frequency as the point after the last peak in the frequency response at which the level has fallen to the design value of the passband ripple. The amount of ripple in this class of filter can be set ...
In theoretical physics, cutoff (AE: cutoff, BE: cut-off) is an arbitrary maximal or minimal value of energy, momentum, or length, used in order that objects with larger or smaller values than these physical quantities are ignored in some calculation.
Zhonghua minzu, literally the Chinese nation; Little China (ideology), or "Xiao Zhonghua", conception of the political and cultural realm of China in the Sinosphere; A school in Singapore. See primary schools in Singapore. Chong Hua Hospital, a hospital in Cebu City, Philippines; Zamboanga Chong Hua High School, a school in Zamboanga City ...
In electronics, cut-off is a state of negligible conduction that is a property of several types of electronic components when a control parameter (that usually is a well-defined voltage or electric current, but could also be an incident light intensity or a magnetic field), is lowered or increased past a value (the conduction threshold).
Endymion Wilkinson points out that the Chinese were not unique in thinking of their country as central, although China was the only culture to use the concept for its name. [59] However, the term Zhongguo was not initially used as a name for China. It did not have the same meaning throughout the course of history . [60]
In ultrafiltration, the molecular weight cut-off or MWCO of a membrane refers to the lowest molecular weight of the solute (in daltons) for which 90% of the solute is retained by (prevented from passing through) the membrane, [1] or the molecular weight of the molecule (e.g. globular protein) that is 90% retained by the membrane.