Embedded systems (Life detecting circuit using PIC microwave controller) ABSTRACT: A new revolutionary microwave life detection system. Which is used to locate human beings buried (or) trapped under earthquake rubble has been designed. This system operating at certain frequency can remotely detect the breathing and heart beat signals of human beings buried under earthquake rubble. By proper processing of these signals‚ the status of the person under trap can
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4 Use available evidence to suggest reasons for the differences in the range of electromagnetic radiation detected by humans and other animals: Reasons for differences in detection between humans and other animals: The differences between human detection range and other animals detection range relates to their environment in which they live in and their way of life. The detection out of the visible spectrum is usually an adaptation for survival of the organism. Humans detection
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and the target are located remotely apart and the electromagnetic radiation serves as a link between the sensor and the object‚ the sun being the major source of energy illuminating the earth. The part of this energy is reflected‚ absorbed and transmitted by the surface. A sensor records the reflected energy. Remote Sensing is performed using an instrument‚ often referred to as a sensor. Most of the remote sensing instruments record electromagnetic radiation (EMR) that travels at a velocity of 3x10^8
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explored. Infrared radiation is invisible radiant energy‚ it lies between the visible light and the microwave portion of the electromagnetic spectrum. Heat is the main source of infrared energy‚ heat is produced by the movement of atoms and molecules. This experiment was conducted to investigate how black‚ white‚ and silver cans would absorb heat. The electromagnetic spectrum is made up of gamma rays‚ X-rays‚ ultraviolet‚ visible‚ infrared‚ microwaves and radio waves. What separates these is the frequency
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Being Cool Sources: 1. https://www.google.co.uk/#q=which+electromagnetic+waves+emitted+from+the+sun+produce+a+heating+effect http://www.universetoday.com/60065/radiation-from-the-sun/ 2. http://www.raytek.com/Raytek/en-r0/IREducation/Emissivity.htm?trck=emissivity http://www.keller-msr.com/temperature-pyrometers/emissivity-definition-and-influence-in-non-contact-temperature-measurement.php 3. http://www.gcsescience.com/pen10-matt-black.htm http://scienceline.ucsb.edu/getkey
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visible light (electromagnetic radiation) is utilised by organisms with photosynthetic abilities (pigments called chloroplasts) as a chemical energy source. Living chloroplasts can be readily isolated from live plant tissue and used to investigate photosynthesis (Lilley et al. 1975; Halliwell 1984). Photosynthetic organelles are Eukaryotic and are fundamental for the survival of not only the organisms themselves‚ but the entire ecosystem around them as well. After the electromagnetic radiation is completely
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TITLE: EFFECTS OF ELECTROMAGNETIC RADIATION ON HUMAN HEALTH. Table of Contents DECLARATION 2 APPROVAL 3 DEDICATION 4 ABSTRACT 7 LIST OF ABBREVIATIONS 7 CHAPTER 1: INTRODUCTION 9 1.1 Background information 9 1.2 STATEMENT OF THE PROBLEM 10 1.2.1 Current situation 10 1.2.2 Research to find out the effects of electromagnetic radiation on human health. 11 1.3 OBJECTIVE OF THE STUDY 13 1.3.1 General objective 13 1
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as electromagnetic radiation‚ when in an excited state. Analyzing this emitted light can give insight to the makeup and characteristics of them. The light given off by an energetically excited atom is not a continuous distribution of all possible wavelengths‚ but rather consists of a few wavelengths giving a series of discrete lines. Spectroscopy is the analysis of that emitted light and its dispersion into to it’s component wavelengths and colors. Niels Bohr explained the discrete spectrum of
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particles in them are in constant random motion‚ and whenever charges change their state of motion‚ electromagnetic radiation is emitted. The temperature of an object is a direct measure of the amount of microscopic motion within it. The hotter the object – that is‚ the higher its temperature – the faster its constituent particles move and the more energy they radiate. The Black-Body Spectrum * Intensity – it is a term often used to specify the amount or strength of radiation at any point
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light reaching a detector. Classes a.) Single Beam Spectrophotometer Light from the source lamp is passed through a monochromator‚ which diffracts the light into a "rainbow" of wavelengths and outputs narrow bandwidths of this diffracted spectrum. Discrete frequencies are transmitted through the test sample. Then the photon flux density (watts per metre squared usually) of the transmitted or reflected light is measured by the sensor. The transmittance or reflectance value for each wavelength
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