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  2. End-systolic volume - Wikipedia

    en.wikipedia.org/wiki/End-systolic_volume

    End-systolic volume ( ESV) is the volume of blood in a ventricle at the end of contraction, or systole, and the beginning of filling, or diastole . ESV is the lowest volume of blood in the ventricle at any point in the cardiac cycle . The main factors that affect the end-systolic volume are afterload and the contractility of the heart .

  3. Stroke volume - Wikipedia

    en.wikipedia.org/wiki/Stroke_volume

    Stroke volume. In cardiovascular physiology, stroke volume ( SV) is the volume of blood pumped from the ventricle per beat. Stroke volume is calculated using measurements of ventricle volumes from an echocardiogram and subtracting the volume of the blood in the ventricle at the end of a beat (called end-systolic volume [note 1]) from the volume ...

  4. M1132 engineer squad vehicle - Wikipedia

    en.wikipedia.org/wiki/M1132_Engineer_Squad_Vehicle

    The M1132 engineer squad vehicle (ESV) is the combat engineering variant of the Stryker wheeled armored fighting vehicle. It is issued to combat engineer squads in the US Army Stryker brigade combat teams. Models with the double V-hull upgrade are known as the M1257 ESVV.

  5. Multiplicative order - Wikipedia

    en.wikipedia.org/wiki/Multiplicative_order

    The multiplicative order of a number a modulo n is the order of a in the multiplicative group whose elements are the residues modulo n of the numbers coprime to n, and whose group operation is multiplication modulo n. This is the group of units of the ring Zn; it has φ ( n) elements, φ being Euler's totient function, and is denoted as U ( n ...

  6. Zeller's congruence - Wikipedia

    en.wikipedia.org/wiki/Zeller's_congruence

    The fraction 13/5 = 2.6 and the floor function have that effect; the denominator of 5 sets a period of 5 months. The overall function, mod 7 {\displaystyle \operatorname {mod} \,7} , normalizes the result to reside in the range of 0 to 6, which yields the index of the correct day of the week for the date being analyzed.

  7. Quadratic residue - Wikipedia

    en.wikipedia.org/wiki/Quadratic_residue

    The quadratic excess E ( p) is the number of quadratic residues on the range (0, p /2) minus the number in the range ( p /2, p) (sequence A178153 in the OEIS ). For p congruent to 1 mod 4, the excess is zero, since −1 is a quadratic residue and the residues are symmetric under r ↔ p − r.

  8. List of equipment of the United States Army - Wikipedia

    en.wikipedia.org/wiki/List_of_equipment_of_the...

    The patrol bag provides weather protection from 35–50 °F (2–10 °C). The intermediate bag provides cold weather protection from −5–35 °F (−21–2 °C). Combining the patrol bag and intermediate bags provides extreme cold weather protection in temperatures as low as −30 °F (−34 °C).

  9. Modulo - Wikipedia

    en.wikipedia.org/wiki/Modulo

    If p is a prime number which is not a divisor of b, then ab p−1 mod p = a mod p, due to Fermat's little theorem. Inverse: [(−a mod n) + (a mod n)] mod n = 0. b −1 mod n denotes the modular multiplicative inverse, which is defined if and only if b and n are relatively prime, which is the case when the left hand side is defined: [(b −1 ...