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  2. Advance ratio - Wikipedia

    en.wikipedia.org/wiki/Advance_ratio

    Low Advance Ratio (J < 1): When the advance ratio is low, the vehicle is moving forward slowly relative to the propeller speed. This usually happens at low speeds or when the propeller is turning very fast. High Advance Ratio (J > 1): When the advance ratio is high, the vehicle is moving forward quickly compared to the propeller's rotational speed.

  3. Arithmetic progression - Wikipedia

    en.wikipedia.org/wiki/Arithmetic_progression

    Proof without words of the arithmetic progression formulas using a rotated copy of the blocks.. An arithmetic progression or arithmetic sequence is a sequence of numbers such that the difference from any succeeding term to its preceding term remains constant throughout the sequence.

  4. DePriester chart - Wikipedia

    en.wikipedia.org/wiki/DePriester_chart

    DePriester Charts provide an efficient method to find the vapor-liquid equilibrium ratios for different substances at different conditions of pressure and temperature. The original chart was put forth by C.L. DePriester in an article in Chemical Engineering Progress in 1953.

  5. Geometric progression - Wikipedia

    en.wikipedia.org/wiki/Geometric_progression

    A geometric progression, also known as a geometric sequence, is a mathematical sequence of non-zero numbers where each term after the first is found by multiplying the previous one by a fixed number called the common ratio. For example, the sequence 2, 6, 18, 54, ... is a geometric progression with a common ratio of 3.

  6. Incremental capital-output ratio - Wikipedia

    en.wikipedia.org/wiki/Incremental_capital-output...

    The Incremental Capital-Output Ratio (ICOR) is the ratio of investment to growth which is equal to the reciprocal of the marginal product of capital. The higher the ICOR, the lower the productivity of capital or the marginal efficiency of capital. The ICOR can be thought of as a measure of the inefficiency with which capital is used. In most ...

  7. Normal distribution - Wikipedia

    en.wikipedia.org/wiki/Normal_distribution

    In probability theory and statistics, a normal distribution or Gaussian distribution is a type of continuous probability distribution for a real-valued random variable.The general form of its probability density function is [2] [3] = ().

  8. Wilks coefficient - Wikipedia

    en.wikipedia.org/wiki/Wilks_Coefficient

    The formula can also be used in team and handicap competitions where the team includes lifters of significantly varying bodyweights. The Wilks formula, like its predecessors (the O'Carroll [ 3 ] and Schwartz [ 4 ] formulas), was set up to address the imbalances whereby lighter lifters tend to have a greater Power-to-weight ratio , with lighter ...

  9. False positive rate - Wikipedia

    en.wikipedia.org/wiki/False_positive_rate

    Since V is a random variable and is a constant (), the false positive ratio is also a random variable, ranging between 0–1. The false positive rate (or "false alarm rate") usually refers to the expectancy of the false positive ratio , expressed by E ( V / m 0 ) {\displaystyle E(V/m_{0})} .