Ventilators are typically used by ALS patients having difficulty breathing. There are several kinds of non-invasive ventilators, such as small devices that fit over the nose and mouth. Patients may also opt for a tracheostomy, a surgical procedure in which a tube is placed into the throat.
3. Counters. A counter is a digital sequential logic device that will go through a certain predefined states (for example counting up or down) based on the application of the input pulses. They are utilized in almost all computers and digital electronics systems [1].
THE HOME DEPOT IS YOUR KITCHEN COUNTERTOPS DESTINATION. Installing a new kitchen countertop is one of the most dramatic ways to express your sense of style in your home. Natural stone specialty countertops such as granite countertops and quartz countertops are some of the hardest surfaces on earth. They come in a variety of natural patterns, colors and are engineered to resist scratches, heat and stains.