The photoacoustic effect - production of sound from light - may be exploited for detection and localization of gas leaks on the surface of otherwise sealed components. The technique involves filling the test component with a photoactive tracer gas, and irradiating the component to produce photoacoustic sound from any leak site where a tracer gas cloud forms. This presentation describes experiments utilizing 10.6-micron radiation from a carbon-dioxide laser with sulfur hexafluoride as a tracer gas. Here, photoacoustic sounds from a laminar plume ....etc

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Introduction

Overview

Coronary artery disease, the restriction of blood flow to the heart, is the leading cause of death in the United States. The chances of suffering a myocardial infarction are great and increase up to fifteen times after the first occurrence. During a heart attack, heart muscle is depraved of oxygen and will literally die if the artery remains blocked. The first few hours are critical in saving much of the dying heart muscle and preventing permanent heart damage. Unfortunately, the symptoms vary and the most common ....etc

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Introduction

India is a country where the maximum number of deaths occurs due to road accidents and most of these occur due to over speeding. Manifold attempts have been made to produce reliable and efficient means of detecting over speeding vehicles. The hand held over speeding detector is one such device. The disadvantage of such a device was that it was cumbersome and required expert hands for it's operation; also by the time a speed reading is obtained, the vehicle would long have gone.

Thus the necessities for a more reliable and eas ....etc

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Motivation for In Vivo Optical Imaging (Partial List)
• Safety — Non-ionizing radiation: photon energy is ~2 eV
• Physics — Molecular structure and composition of tissue
• Optics — High intrinsic contrast. E.g., absorption probes
 Oxy-hemoglobin & deoxy-hemoglobin
 Melanin
 Lipid
 Water
 DNA & RNA
• Physiology — Endogenous contrast for functional imaging
 Concentration of hemoglobin (angiogenesis)
 Oxygen saturation of hemoglobin (hyper-metabolism)
 Cell nuclei
 ....etc

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Hey Guyz, I really need some material on the topic. I've gotten some stuffs, but i'm not really satisfied with them. pls kindly help me out.......Thanks(in advance)




Shoutout to Computer-science-crazy. You're the best ....etc

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pls send me details abt rain detector
i need details abt project Rain Detector ....etc

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report of project Rain Detector ....etc

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pls send me details abt Rain detector ....etc

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