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We survey the state of the art in a variety of force sensors for designing and application of robotic hand. Most of the force sensors are examined based on tactile sensing. For a decade, many papers have widely discussed various sensor technologies and transducer methods which are based on microelectromechanical system (MEMS) and silicon used for improving the accuracy and performance. Electronic Speed Controller Circuit. The term ESC is frequently used as a contraction for ‘electronic speed controller. The basic function of ESC is to change the amount of power to the electric motor from the aircraft battery based upon the location of the throttle stick. In earlier, speed controllers are mainly used in remote control boats and cars which use a variable resistor with a. The photographic plate thus became the imaging medium par excellence in the 20th century. Whereas the human eye can only record images for a given moment in time, photographic plates offered the advantage of objectively collecting and recording the light from millions of stars and galaxies over several hours to produce images with a stunning. Using the switch-mode power supply (SMPS) of your personal computer, this add-on circuit lets you switc h between three hard disk drives (HDDs) and also ensure that nobody else can open your.