about 1 or 2 watts of power. The electricity created is multiplied by the number of cells in each panel and the number of panels in each solar array. Combined a solar array can make a lot of electricity for homes or businesses. There are obvious advantages to solar PV technology. It produces clean energy. It has no emissions, no moving parts, it doesn't make any noise and it doesn’t need water or fossil fuel to produce power. And can be located right where the power is needed, even in the middle of
desired speed; we need to press the corresponding switch. Microcontroller cannot drive the stepper motor directly, for that purpose we use a driver IC ULN2003. Advantages of stepper motors are low cost, high reliability, high torque at low speeds and a simple, rugged construction that operates in almost any environment. The main disadvantages in using a step motor is the resonance effect often exhibited at low speeds and decreasing torque with increasing speed. The status of the dish antenna such
the elements are combined together to achieve a system which is more useful and more functional than any of the constituent alone. Composite materials are becoming more and more important to today’s material due to the advantages it brings to us. Some clear evidence of the advantages of composite materials is that composite materials are low in weight, resistant against corrosion, has high fatigue strength etc. Nowadays, they are widely used in the manufacturing of aircraft structures, electronic packaging
developed a wide range of industrial usage areas. The largest single use of aluminum alloys is in the transportation industry. Car and truck manufacturers use SPD processed aluminum alloys because they are strong, but lightweight. Another important use of aluminum alloys is in the packaging industry. Aluminum foil, drink cans, paint tubes, and containers for home products are all made of aluminum alloys. Other uses of aluminum alloys include window and door frames, screens, roofing, siding, electrical