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  2. K factor (traffic engineering) - Wikipedia

    en.wikipedia.org/wiki/K_factor_(traffic_engineering)

    The K Factor also helps calculate the peak-to-daily ratio of traffic. K30 helps maintain a healthy volume to capacity ratio. [3] K50 and K100 will sometimes be seen. K50 and K100 will not use the 30th highest hourly traffic volumes but the 50th or 100th highest hourly traffic volume when calculating the K factor.

  3. Busy-hour call attempts - Wikipedia

    en.wikipedia.org/wiki/Busy-hour_call_attempts

    In telecommunications, busy-hour call attempts (BHCA) is a teletraffic engineering measurement used to evaluate and plan capacity for telephone networks. [1] BHCA is the number of telephone calls attempted at the sliding 60-minute period during which occurs the maximum total traffic load in a given 24-hour period (BHCA), and the higher the BHCA, the higher the stress on the network processors.

  4. Passengers per hour per direction - Wikipedia

    en.wikipedia.org/wiki/Passengers_per_hour_per...

    Three parallel escalators; the direction of the middle escalator can be changed to double capacity in one direction (↑↑↓ or ↑↓↓).. Many public transport systems handle a high directional flow of passengers— often traveling to work in a city in the morning rush hour and away from the said city in the late afternoon.

  5. Rush hour - Wikipedia

    en.wikipedia.org/wiki/Rush_hour

    Morning rush hour on the New York City Subway platform at Jackson Heights–Roosevelt Avenue Afternoon rush hour traffic on Interstate 95 in Miami. A rush hour (American English, British English) or peak hour (Australian English, Indian English) is a part of the day during which traffic congestion on roads and crowding on public transport is at its highest.

  6. Lung volumes and capacities - Wikipedia

    en.wikipedia.org/wiki/Lung_volumes_and_capacities

    In absence of such, estimates of residual volume have been prepared as a proportion of body mass for infants (18.1 ml/kg), [12] or as a proportion of vital capacity (0.24 for men and 0.28 for women) [13] or in relation to height and age ((0.0275* Age [Years]+0.0189*Height [cm]−2.6139) litres for normal-mass individuals and (0.0277*Age [Years ...

  7. Bone age - Wikipedia

    en.wikipedia.org/wiki/Bone_age

    Peak height velocity (PHV) occurs at the average age of 11 years for girls and at the average age of 13 years for boys. [29] While there is no exact age for the culmination of bone maturity, modern research suggests a range of between 15-17 years for bone maturity in boys and 14-16 years for girls.

  8. What is a normal blood pressure reading? - AOL

    www.aol.com/lifestyle/normal-blood-pressure...

    When Dr. Oz sat Rachael Ray down for a blood pressure test during a segment of her show, he wasn't entirely pleased with the numbers he saw. In fact, he made her do it again -- and he called her ...

  9. Spirometry - Wikipedia

    en.wikipedia.org/wiki/Spirometry

    a volume-time curve, showing volume (litres) along the Y-axis and time (seconds) along the X-axis; a flow-volume loop, which graphically depicts the rate of airflow on the Y-axis and the total volume inspired or expired on the X-axis