COMPARISON OF ENERGY-BASED ENDPOINT DETECTORS FOR SPEECH SIGNAL PROCESSING
Accurate endpoint detection is a necessary capability for construction of speech databases from field recordings. In this paper we describe the implementation of two endpoint detection algorithms which use signal features based on energy and rate of zero crossings. We have made extensive use of object-oriented concepts and data-driven programming to make our code re-usable for a variety of applications, including speech recognition. A uniform user-i ....etc

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help me for ULTRASONIC MOTION DETECTOR. ....etc

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NANO SENSORS AND DETECTORS-THEIR APPLICATIONS (NEMS)
ABSTRACT:
Nanotechnology is an extremely powerful emerging technology, which is expected to have a substantial impact on medical technology now and in the future. The potential impact ofnovel nanomedical applications on disease diagnosis, therapy, and prevention is foreseen to change health care in a fundamental way.
Biomedical nanotechnology presents revolutionary opportunities in the fight against many diseases . An area with near-term potential is detecting molecules ....etc

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Ultrasonic motion detectors emit and receive ultrasonic sound energy in a region of interest.Object motion within the region of interest and in the range of the ultrasonic motion sensor is detected and an alarm signal is produced.The range of these detectors differs from the designed range whenever the actual atmospheric sound propogation conditions vary from the atmospheric conditions assumed in the design .Ultrasonic motion detectors are commonly used for automatic door openers and security alarms. ultrasonic beams are easily blocked by t ....etc

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The ultrasonic detector is a popular device for detecting motion in a free space. it is not as versatile as the passive infra-red type mainly due to its restricted range, usually only about 9 meters max. It can be used in situations and environments which mould be unsuitable for the infra-red type as it is not affected by temperature chances.The human ear can hear sounds of frequencies between 20Hz and 20KHz (20,000Hz). Sound waves do exist above 20KHz but me cannot hear them, these very high sounds are called ultrasounds or ultrasonics. Imagin ....etc

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SUBMITTED BY:
CHINMAYA BISWAL



ABSTRACT
The world might have been reaching new heights in technology, man might have made artificial residential environment in outer space. But all this will end up to one primary objective. The aim of every human research is how to make life more comfortable and decrease the mortality of human beings.
For this reason a crucial visual study of animal tissue and environment is highly critical. The number of CMOS technology ....etc

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Abstract


A multidisciplinary team of end users and suppliers has collaborated to develop a novel yet broadly enabling process for the design, fabrication and assembly of Micro-Opto-Electro-Mechanical Systems (MOEMS). A key goal is to overcome the shortcomings of the polysilicon layer used for fabricating optical components in a conventional surface micromachining process. These shortcomings include the controllability and uniformity of material stress that is a major cause of curvature and deformation in released microstructures. The appr ....etc

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pliz assist me to get the micontroller based ultrasonic motion detector circuit diagram.i need it urgently for my final project
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i want ppt on ultrasonic motion detector and components used in it.
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pliz assist me to get the micontroller based ultrasonic motion detector circuit diagram for my final year project. ....etc

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