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Self-cleaning surfaces are a class of materials with the inherent ability to remove any debris or bacteria from their surfaces in a variety of ways. The self-cleaning functionality of these surfaces are commonly inspired by natural phenomena observed in lotus leaves, gecko feet, and water striders to name a few.
The RCA clean is a standard set of wafer cleaning steps which need to be performed before high-temperature processing steps (oxidation, diffusion, CVD) of silicon wafers in semiconductor manufacturing. Werner Kern developed the basic procedure in 1965 while working for RCA, the Radio Corporation of America.
The National Aerobic Championships was a competition of aerobic gymnastics started in 1984 in the United States. Founded by Sports Fitness International, it was the first major championship in the sport predating the Aerobic Gymnastics World Championships by 11 years.
Robotic vacuum cleaner on a hardwood floor. A robotic vacuum cleaner, sometimes called a robovac or a roomba as a generic trademark, is an autonomous robotic vacuum cleaner which has a limited vacuum floor cleaning system combined with sensors and robotic drives with programmable controllers and cleaning routines.
Cycling is an aerobic form of exercise. Aerobic exercise, also known as cardio, is physical exercise [1] of low to high intensity that depends primarily on the aerobic energy-generating process. [2] "
An Aqua cycling class. New aquatic formats are arising into the exercise world, with ideas such as: aqua cycling and water pole dancing. Water aerobics is beneficial to a multitude of participants because the density of the water allows easy mobility for those with arthritis, obesity, and other conditions.
Finishing position of a clean, and starting position of a jerk. The first part of clean and jerk is the clean, which moves the barbell from the ground to shoulder height. To execute a clean, a lifter grasps the barbell just outside the legs, typically using a hook grip. Once the barbell is above the knees, the lifter extends explosively ...
Ice resurfacers are generally composed of a snow container, hot water tanks, a wash water tank, the conditioner, and a board brush. An internal combustion engine or electric motor of the vehicle is responsible both for propelling the resurfacer and also powering the hydraulics that control the various functions, such as lowering the conditioner or raising the snow dump.