Introduction Electrical drives Motion control is required in large number of industrial and domestic applications like transportation systems‚ rolling mills‚ paper machines‚ textile mills‚ machine tools ‚ fans pumps ‚ robots‚ washing machine etc.. system employed for motion control are called drives and employ any of the prime movers such as diesel or petrol engines gas or steam engines hydraulic motors and electric motors for supplying mechanical energy for motion control. Drives employing electric
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Hybrid or electric cars have been developed over time by using ideas from hundreds of different people over hundreds of years. No one person can be given credit for this invention. The history of electric cars is divided into three different parts. The early years‚ from 1890-1929. People were very interested in this new idea. The middle years‚ from 1930-1989. During this time‚ not many people wanted to buy hybrid or electric cars. The current years from 1990-present. Hybrid cars are considered a better
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How to change your car battery like a pro One of the simplest things you can do with your r car is changing the battery. There are several indicators to warn you that you should replace the vehicle battery. Although battery manufacturers will always claim the product will last for more than five years‚ normal car batteries will last for only two years. To evade problems with the car‚ it is advisable to change car after two and a half years. Some of these signs include: Indicators that the car battery
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A driverless car also known as a self-driving car is an autonomous car that can sense its environment and navigate itself without any human intervention. No autonomous car relies on a single sensor because it wouldn’t be accurate. A perfect example of this is the Google’s self-driving car‚ it does not only rely on GPS data because it wouldn’t be accurate enough to keep the car on the road‚ let alone in the correct lane. Instead it uses eight different sensors to keep the individuals inside and the
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7 Steps to a Green School Adapted from Eco-Schools International 1. Establish A Green Team or Eco-Committee The Green Team is the heart of the Green Schools process‚ both organizing and directing activities at the school. Consisting of the stakeholders of the school environment - students‚ teachers‚ custodians‚ facilities managers‚ parents and school board members - the Green Team is democratic and can often be run by the students themselves. Whatever the type of school or age group‚ student involvement
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McClelland identified three key motivating drives that work for everyone. He named these key drives as: * The Need for Achievement * The Need for Affiliation * The Need for Power He also identified how these needs each vary in strength between different people. Everyone‚ says McClelland‚ is motivated by all of these‚ but to motivate individuals‚ the manager needs to consider what the primary drivers in each case are. Achievement How to recognise the Achievement Motive in a person
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My car utilizes the energy stored within a stretched rubber band‚ and converts it into rotational kinetic energy‚ which moves the wheels forward. 2 non-motile rods were placed on the front of the chassis to maintain tension in the rubber bands‚ and allow the rubber band to retract as it leaves the axle‚ preventing it from limiting axle motion. The CD wheels on the rear of the vehicle allow a larger displacement per axle rotation‚ meaning the car will be able to travel a farther distance. Vinyl tape
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Car accidents are one of the scariest every day possibilities that can effect anyone’s life‚ any day‚ in a matter of seconds. Most people consider themselves to be well informed on what to do if they should ever find themselves in that type of situation. However many are misinformed. Car accidents can happen at any time of the day‚ anywhere. Put yourself in that situation‚ what would be the first thing you did after impact? If you say pick up the phone and call 911‚ you would be wrong. There are
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For most people‚ getting woke up at 2:30 a.m.‚ learning to drive tractor at the age of nine‚ or getting to watch a baby calf take its first breath are unusual experiences. However‚ these things are normal and even become a way of life when you live on a beef cattle farm. Plans get cancelled‚ church clothes get dirty‚ and becoming best friends with a cow sums up the life on a farm. When people say “start them young‚” they are usually referencing to sports or school‚ but for farming lifestyles this
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is something every motorist must expect to encounter. Of all vehicular parts‚ it is the tire that acquires the worst damage‚ the most wear and tear. Recognizing a flat tire is then. And once you know how to recognize a flat tire‚ the next step is to learn how to replace it. Before going on long drives‚ it is also necessary to check the current condition of your tire. It is also wise to monitor the air pressure of the spare tires that you bring along so that it will be useful in times of tire complications
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