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  2. Estrous cycle - Wikipedia

    en.wikipedia.org/wiki/Estrous_cycle

    A mare may be in heat for 4 to 10 days, followed by approximately 14 days in diestrus. Thus, a cycle may be short, totaling approximately 3 weeks. [21] Horses mate in spring and summer; autumn is a transition time, and anestrus occurs during winter.

  3. List of maria on the Moon - Wikipedia

    en.wikipedia.org/wiki/List_of_maria_on_the_Moon

    1882 chart of the moon with maria. This is a list of maria (large, dark, basaltic plains) on the Moon.It includes other basaltic plains, including the one oceanus as well as features known by the names lacus, palus and sinus.

  4. Horse breeding - Wikipedia

    en.wikipedia.org/wiki/Horse_breeding

    The minimum cost of breeding for a mare owner includes the stud fee, and the cost of proper nutrition, management and veterinary care of the mare throughout gestation, parturition, and care of both mare and foal up to the time of weaning. Veterinary expenses may be higher if specialized reproductive technologies are used or health complications ...

  5. Lake retention time - Wikipedia

    en.wikipedia.org/wiki/Lake_retention_time

    The lake retention time for a body of water with the volume 2,000 m 3 (71,000 cu ft) and the exit flow of 100 m 3 /h (3,500 cu ft/h) is 20 hours.. Lake retention time (also called the residence time of lake water, or the water age or flushing time) is a calculated quantity expressing the mean time that water (or some dissolved substance) spends in a particular lake.

  6. Mare - Wikipedia

    en.wikipedia.org/wiki/Mare

    A broodmare. Note slight distension of belly, indicating either early pregnancy or recent foaling. A mare is an adult female horse or other equine. [1] In most cases, a mare is a female horse over the age of three, and a filly is a female horse three and younger.

  7. Discharge coefficient - Wikipedia

    en.wikipedia.org/wiki/Discharge_coefficient

    In a nozzle or other constriction, the discharge coefficient (also known as coefficient of discharge or efflux coefficient) is the ratio of the actual discharge to the ideal discharge, [1] i.e., the ratio of the mass flow rate at the discharge end of the nozzle to that of an ideal nozzle which expands an identical working fluid from the same initial conditions to the same exit pressures.

  8. Liberthine Mares' Chase - Wikipedia

    en.wikipedia.org/wiki/Liberthine_Mares'_Chase

    The Liberthine Mares' Chase, currently run as the Mrs Paddy Power Mares' Chase, is a Grade 2 National Hunt chase in Great Britain which is open to mares aged five years or older. It is run on the New Course at Cheltenham over a distance of about 2 miles and 4½ furlongs (2 miles 4 furlongs and 127 yards, or 4,139 metres), and during its running ...

  9. Cheng cycle - Wikipedia

    en.wikipedia.org/wiki/Cheng_cycle

    The company founded by Dr. Cheng has developed systems in partnership with both GM and GE turbine manufacturers to take advantage of the Cheng cycle by modification of existing turbine designs before construction. The Cheng cycle involves the heated exhaust gas from the turbine being used to make steam in a heat recovery steam generator (HRSG). [2]