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Smoothed-particle hydrodynamics (SPH) is a computational method used for simulating the mechanics of continuum media, such as solid mechanics and fluid flows. It was developed by Gingold and Monaghan [ 2 ] and Lucy [ 3 ] in 1977, initially for astrophysical problems.
SPH, CYL, and AXIS are values for describing the power of the lens using plus cylinder or minus cylinder notation. ADD is an abbreviation for Near Addition. This is the additional refractive power to be combined, or added, to the distance power to achieve the ideal near power.
Eye examination for visual acuity The LogMAR – ETDRS Chart, designed in 1976, to test for visual acuity. Visual acuity is a measure of the spatial resolution of the visual processing system.
The 1.25-meter, 220 MHz or 222 MHz band is a portion of the VHF radio spectrum internationally allocated for amateur radio use on a primary basis in ITU Region 2, and it comprises frequencies from 220 MHz to 225 MHz. [1]
"Today, while not as widely available as 2 meter and 70 centimeter equipment, 1.25 meter equipment is much easier to obtain than it has been in the past and there is new handheld and mobile equipment being produced by amateur radio manufacturers."
The muscle helps maintain continence of urine along with the internal urethral sphincter which is under control of the autonomic nervous system.The external sphincter muscle prevents urine leakage as the muscle is tonically contracted via somatic fibers that originate in Onuf's nucleus and pass through sacral spinal nerves S2-S4 then the pudendal nerve to synapse on the muscle.
A pair of contact lenses, positioned with the concave side facing upward. A corrective lens is a transmissive optical device that is worn on the eye to improve visual perception.
1st Battalion, 25th Marines (1/25) is a reserve infantry battalion in the United States Marine Corps located throughout New England and upstate New York and consisting of approximately 850 Marines and Sailors.