History of Pulse Oximetry Before the Pulse-Oximeter the only way to measure SpO2 was by using a painful arterial blood gas which took a minimum of 20-30 minutes to view the result. In 1974 Takuo Aoyagi a Niigata University student disclosed his first Pulse-Oximeter for the use of pilots in World War 2. He set about searching for a non-invasive way of monitoring arterial blood oxygen saturation. Nellcor’s pulse oximeter was put on the market in 1983 and this used his theory developed in 1974. By
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Kristin Rupich is an acute care nurse practitioner in Philadelphia‚ Pennsylvania. In this article‚ Rupich examined six research studies investigating the use of hypothermia in patients with a traumatic brain injury. The effects associated hypothermia as on patients with a secondary brain injury. This article also discusses the complications that arose throughout the process‚ as well as the outcomes of the research studies and the patients in the hypothermia and normthermia groups. In the United States
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| Radio waves‚ microwaves‚ infrared waves‚ visible light‚ ultraviolet rays‚ gamma rays. | Energy in an Electromagnetic Wave | Energy is part electric and part magnetic. | DO NOT Pass through Light | Infrared and Ultra-violet light do not pass through glass while visible light does. | Resonance on Glass | Electron in glass have a natural frequency in ultra-violet range. | Atmosphere Transparency | Our atmosphere is transparent to visible light and some infrared‚ but almost opaque to ultra-violet
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Map (David & Allen)………..………………………...……..…….6 Process Map (David & Thomas)……………………………………..…7 Four Designs…………………………………..…...………...……..…8 Rubber Band Driven Boat (Tom) Air Injection Boat (Thomas) Stream Driven Boat (Allen) DC Motor Boat with Infrared Sensors (David) Designs Selection……………….…………………………………...13 Quick Elimination (Allen &Thomas) Deep Balance (David) Final Design & Specification…………………..………………..…..16 Mechanical Drawing (Tom & Thomas) Improvements Made for Final Design (David
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sense even the slightest motion. If you are not careful‚ you might find yourself falling onto your back or flat on your face as you operate your smart self balancing hoverboard. Smart it is that it will not take off without you. Your hoveboard have infrared pressure sensors on the rubber foot pads that start working once you step on the self-balancing e-scooter with both feet. Indeed‚ no feet
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CHAPTER 1 INTRODUCTION Every day of your computing life‚ you reach out for the mouse whenever you want to move the cursor or activate something. The mouse senses your motion and your clicks and sends them to the computer so it can respond appropriately. An ordinary mouse detects motion in the X and Y plane and acts as a two dimensional controller. It is not well suited for people to use in a 3D graphics environment. Space Mouse is a professional 3D controller specifically designed for manipulating
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correctly orders the different categories of electromagnetic radiation? a) gamma rays‚ X rays‚ visible light‚ ultraviolet‚ infrared‚ radio b) visible light‚ infrared‚ X rays‚ ultraviolet‚ gamma rays‚ radio c) radio‚ infrared‚ visible light‚ ultraviolet‚ X rays‚ gamma rays d) infrared‚ visible light‚ ultraviolet‚ X rays‚ gamma rays‚ radio e) radio‚ X rays‚ visible light‚ ultraviolet‚ infrared‚ gamma rays 5. Evidence of the expansion of the universe is shown by a) the Einstein Cross b) the 4.5 billion year
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middle. This is the part of the eye that gives the most accurate vision. The high density of cones in the eye gives humans the ability to focus on an object in the center of our vision. Even with all that the eye has‚ how come humans can’t see UV or infrared light? Would it not have been useful to the less evolved man? The answer natural selection has left us with is probably not. Our poor sense of vision compared to other mammals (and animals in general) would not have aided the early hominid. The spectrum
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CO2 Sensor Cable- This is used to transmit the signals from the airway adapter to the monitor for the purpose of displaying the EtCO2 values. • Sensor- The purpose of the sensor is used to collect a sample of gas from the patient’s airway and using infrared spectroscopy or mass correlation spectroscopy method to determine the value of EtCO2. Depending on the type of operation‚ the sensor is either placed on the adapter itself or is located at a distance from the adapter.
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synthesize isopentyl acetate. The techniques used for the separation and purification of isopentyl acetate were reflux‚ liquid-liquid extraction‚ neutralization and distillation. The identification of isopentyl acetate was based on boiling points and an infrared spectrum. This experiment resulted in a 11.68% yield. The reactants and products of this reaction are in equilibrium‚ and therefore it was difficult to obtain a 100% yield. Introduction An ester is formed through an acid-catalyzed Fischner
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