We analyze the feedback loop in Tele-Graffiti, a cameraprojectorbased remote sketching system which we recentlydeveloped. We derive the gain through the feedback loopand the final images that will be viewed by the users of thesystem. We then derive the “optimal gain” as the gain thatresults in the final viewed images being as close as possibleto the sum of the images actually drawn on the paper. Wealso propose a way of using the projector to compensate forinsufficient ambient light and describe how our analysis isaffected by: (1) automat ....etc

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Abstract
The ability to accurately track hand movement provides new opportunities for human computer interaction (HCI). Many of todayâ„¢s commercial hand tracking devices based on gloves can be cumbersome and expensive. An approach that avoids these problems is to use computer vision to capture hand motion. In this paper, we present a complete real-time hand tracking and 3-D modeling system based on a single camera. In our system, we extract feature points from a video stream of a hand to control a virtual hand model with 2-D global motio ....etc

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Hi there,
I need help with this topic. Does anyone know how to implement this with Matlab. ....etc

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Generalised synchronisation in laser devices
with electro-optical feedback
partial and global generalised synchronisation is presented in this article in the case of bi-directionally coupled non-identical chaotic systems with multiple time delays. First a generalized approach is taken and then it is applied to multiple time-delay laser systems with electro-optical feedback. the effect of signal sampling on the signatures of time delays is also studied.
many disciplines of science deals with the synchronisation of systems of coupled ....etc

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Author: Dr. Stephen Williams

Abstract

Here, the students learn how brushless DC motors have made personal electric vehicles (PEVs) possible, and calculate how much using a PEV instead of an automobile for some of their daily driving can impact their production of carbon dioxide, based on United States driving patterns. In the laboratory, students build a brushless DC motor using three different control methods, based on a reed switch, a Hall effect sensor, and optoelectronics, respectively. In the process, students learn about ....etc

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Abstract
Developing effective mechanisms for feedback collection in learning environments is particularly important at the frontiers of new knowledge .Valuing and asking for feedback has recognized benefits for both staff and students. For Staff to provide information for course design to further develop teaching skills as well as to provide better service to the students. For Students to feel valued and 'listened' to have ownership in their own learning to develop reflective thinking to be better informed in selecting a course/module . The o ....etc

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1. (a). The return of a portion of the output of a process or system to the input,especially when used to maintain performance or to control a system or process.

(b). The portion of the output so returned.

(c). Sound created when a transducer such as a microphone or electric guitar picks up sound from a speaker connected to an amplifier and regenerates it back through the amplifier.

2. The return of information about the result of a process or activity; an evaluative response: asked the students for feedback on the new curriculum.

3 ....etc

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MAGNETIC LEVITATION SYSTEM
plant consists of an electromagnet, an optic position sensor, a
ferromagnetic sphere and a power interface.
Due to the spherical shape the measurement is nonlinear and needs
to be electronically or digitally linearised.

Velocity estimation
For fast nonlinear and unstable dynamical systems, such as magnetic
levitation, high quality of control is essential.
The ball velocity measurement is a dicult task.
Measurements of position and current is used for the velocity
estimatio ....etc

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Abstract
The ability to accurately track hand movement provides new opportunities for human computer interaction (HCI). Many of todayâ„¢s commercial hand tracking devices based on gloves can be cumbersome and expensive. An approach that avoids these problems is to use computer vision to capture hand motion. In this paper, we present a complete real-time hand tracking and 3-D modeling system based on a single camera. In our system, we extract feature points from a video stream of a hand to control a virtual hand model with 2-D global moti ....etc

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Abstract”
A major disadvantage of applying sliding mode control to dc/dc converters is that the steady-state switching frequency is affected by line and load variations. This is undesirable as it complicates the design of the input and output filters. To reduce switching frequency deviation in the events of line and load variations, an adaptive feedforward control scheme that varies the hysteresis band according to the change of line input voltage and an adaptive feedback control scheme that varies the control parameter (i.e., sliding c ....etc

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