Pulse Width Modulation is widely used in power electronics as a controller in power conversion and motion control. Among different types of modulating modes the Sinusoidal Pulse Width Modulation (SPWM) and Space Vector PWM are two common strategies in adjustable speed drive system. The Pulse width of SPWM varies with the Sine wave so as to restrain the lower order harmonics with easy control and large D C utilization. With successively improving reliability and performance of digital controllers, the digital control techniques have predominated ....etc

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Magnetic resonance imaging (MRI)



Abstract
Magnetic resonance imaging (MRI) is a noninvasive method for producing three-dimensional tomographic images of the human body. MRI is most often used for the detection of tumors, lesions, and other abnormalities in soft tissues, such as the brain.
Several techniques for automatically segmenting brain tissues in MRI scans of the head have recently been developed. One goal of segmentation is to automatically or semi-automatically de ....etc

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Magnetic Resonance Imaging ....etc

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Magnetic Resonance Imaging (MRI), or nuclear magnetic resonance imaging (N Magnetic Resonance Imaging), is primarily a medical imaging technique most commonly used in radiology to visualize the internal structure and function of the body. Magnetic Resonance Imaging provides much greater contrast between the different soft tissues of the body than computed tomography (CT) does, making it especially useful in neurological (brain), musculoskeletal, cardiovascular, and oncological (cancer) imaging. Unlike CT, it uses no ionizing radiation, but uses ....etc

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A Brushless Servomotor has been developed by using interdisciplinary mechatronics engineering. A mechanical switching device (commutator) is replaced by electronic circuits and controllers resulting in maintenance free and high performance servo drive. The brushless servomotor is an ac motor, in all respects and is in fact called the ac servomotor. Combined with a dedicated control device, the performance of the brushless servomotor is found to be equal to the performance of the high performance dc servo motor. In dc motor when the current fl ....etc

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hydraulic servomotor for teaching purpose especially marine applications

hydraulic servo motor power point presentation ....etc

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Nuclear Magnetic Resonance Imaging

INTRODUCTION
Nuclear Magnetic Resonance is better known as NMR.Generally used for Imaging of the human body.The device which Images the human body using this principle is called a MRI or Magnetic Resonance Imaging Device.Principles of NMRAccording to the electromagnetic theory, any nucleus such as a hydrogen proton which possesses a magnetic moment attempts to align itself with the magnetic field in which it is placed. This results in w ....etc

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Abstract
In this seminar We discuss combined ultrasensitive magnetic resonance force microscopy (MRFM) with 3D image reconstruction to achieve magnetic resonance imaging (MRI) with resolution <10 nm. The image reconstruction converts measured magnetic force data into a 3D map of nuclear spin density, taking advantage of the unique characteristics of the resonant slice that is projected outward from a nanoscale magnetic tip. The basic principles are demonstrated by imaging the 1H spin density within individual tobacco mosaic virus particles sit ....etc

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Presented BY
M.SHALEM RAJ
III ECE (05R81A0435)
SRI SUNFLOWER COLLEGE OF ENGG. AND TECHNOLOGY

MAGNETIC RESONANCE IMAGING (MRI) SIMULATION
ON A GRID COMPUTING ARCHITECTURE

Abstract
In this paper, we present the implementation of a Magnetic Resonance Imaging (MRI) simulator on a GRID computing architecture. The simulation process is based on the resolution of Bloch equation in a 3D space. The computation kernel of the simulator is distributed to the grid nodes using MPICH-G2. The ....etc

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Hai my name is Arun Burni ,Iam a final year b-tech (eee) student ,i need the seminar report for the topic magnetic resonance imaging, dear friends if anybody have this report please send to me my id is [email protected] ....etc

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