...Use of Physics in Everyday Life Use of Physics in Everyday Life Introduction In today’s world, people are surrounded by science and technology, which continue to be more powerful by each passing day. One of these sciences is physics. Physics is science that concerns nature and the properties of matter. It includes mechanics, light, energy, magnetism, structure of atoms sounds and heat among others. The following paper is an essay concerning the use of physics in everyday activities. Skating, using cameras, warming homes using a woodstove, playing with balls that freely fall when suspended and using clothes during cold seasons are some of the examples of areas where physics is used in everyday activities. Skating Skating is one of my daily activities where physics is applied. Skating is a type of movement that is made possible through the laws of motion found in physics. Skating can help explain the term movement, what makes skaters move and what keeps skaters moving while in motion. Also, it helps explain what it takes to stop moving or turn the process of moving in another direction. Skating can also reveal the concept of acceleration and deceleration, as well as the concept of speed. While putting a skate, nothing will happen to such a person unless an external force acts on him or her. The concept of inertia states that a body in motion will always tend to move while a body at rest will always tend to rest unless an external force acts on it (Laws, Sugano, and Swope...
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...Different kinds of computer Technology within law enforcement and courts Cover page Abstract Law enforcement units and courts have made advanced technologies in crime detection and prevention. The past technologies mainly used were mainly aviation technology such as use of planes and helicopters and biometrics. The new computer technologies involve use of crime lights, in-car camera systems, graffiti cameras, thermal imaging, lasers, language translators, less-lethal technologies diagramming systems and global positioning system. It enables the responding of a crime activity in a very short time possible and transfer of information efficiently over a longer distance. This paper involves the research on both past and present technology. Past technology Aviation Technology In the past, technology used in law enforcements or police departments included planes and helicopters which acted to save resources and time. It was used in searching for a missing person and doing a survey of a scene. Biometrics technologies This is the technology which used the physical features or behavior of a person to identify it. The methods used included identification of fingerprints, face, voice, iris, signature and handwritings to detect the criminals. Body Armor This was used to protect a criminal investigation officer or police from injury or death through protection from gun and rifle ammunitions, knife stabs and other sharp weapons .The protective vests was mainly used and was composed...
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...Generic Security System with Thermal Imaging Technology American International University-Bangladesh (AIUB), Department of Computer Science and Engineering. Abstract. In this paper, I proposed a model to build thermal imaging based security system which can be used to control the access on private places and computer systems. The security system will maintain a database in which the thermogram of individuals will be kept. To get access on those places and computers, recent thermal image of the person will be matched with database in a systematic way. Here, I derived some equations for considering the dispersion of body temperature to match with the database in different physical and environmental condition. Key words: Thermogram, Thermal imager, Infrared radiator, Biometric system, Image processing, Image patterns recognition. 1 Introduction Thermal imaging system is the one of the most prominent and advanced technology to detect the radiated temperature (as image) from any objects or bodies by capturing it’s emitted infrared waves. Since almost every object radiate several volume of thermal energy, special type of device called thermal imager can be used to build the detailed temperature pattern of any object which is known as thermogram. Thermal image is varied from person to person and it’s unique [1]. So for ensuring true identification and correct authentication on different security system, thermal imaging technology can be kept in our general interest list. Recently...
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...Summary. Various anthropometric studies have been conducted in the last decade in order to investigate how different physiological or behavioral human characteristics can be used as identity evidence to prove the individuality of each person. Some of these characteristics are: face, eyes, ears, teeth, fingers, hands, feet, veins, voice, signature, typing style and gait. Since the first biometric security systems appeared in the market, an increasing demand for novel techniques that will cover all different scenarios, has been observed. Every new method appears to outmatch some of its competitors but, at the same time, presents disadvantages compared to others. However, there is still no method that consists a single panacea to all different scenarios and demands for security. This is the reason for which researchers are on a continuous effort for more efficient and generic biometric modalities that can be used in various applications. In this chapter, emerging biometric modalities that appeared in the last years in order to improve the performance of biometric recognition systems, are presented. The presented methods are divided in two major categories, intrusive and non-intrusive ones, according to the level of user nuisance that each system sets off. 1 Introduction Biometric recognition is a well-known research area that aims to provide more efficient solutions to everyday growing human need for security. Biometrics refers to methods that can be used for uniquely recognizing...
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...something that is involved with Infrared technology every day, but they do not even realize it! Infrared technology is used in simple household commodities like remote controls to security procedures at the airport security to discovering lost art in art museums. Infrared light is used all around us! Infrared light is used in thermal imaging where an Infrared camera is used to measure the temperature of an object, which is then transferred into a color. The warmest areas will show up as red and then descend to the coolest parts that show up as blue and violet (Oppenheimer). This can even be seen as a picture effect in the PhotoBooth camera application on most Mac computers! Infrared heat-sensor cameras are used for many occupations. They are used to detect insulation losses from homes which can majorly impact a family’s energy use at home and reduce their bills. They are also used for security reasons like border control because the heat-sensor can detect a human from at least 20 kilometers away! This type of security is also used at ports, airports, warehouses and nuclear factories to keep trespassers off the property. Firefighters use infrared cameras to see through smoke in fire outbreaks which allows them to find victims more efficiently. It can also be used to detect gas leaks, which can prevent...
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...Accounting Equipment An electronic calculator is a small, portable, often inexpensive electronic device used to perform both basic and complex operations of arithmetic. Modern calculators are more portable than most computers, though most PDAs or mobile phones are comparable in size to handheld calculators and may soon replace them. The first solid state electronic calculator was created in the 1960s, building on the extensive history of tools such as the abacus, developed arou nd 2000 BC; and the mechanical calculator, developed in the 17th century. It was developed in parallel with the analog computers of the day. Pocket sized devices became available in the 1970s, especially after the invention of the microprocessor developed by Intel for the Japanese calculator company Busicom. An adding machine was a class of mechanical calculator, usually specialized for bookkeeping calculations. In the United States, the earliest adding machines were usually built to read in dollars and cents. Adding machines were ubiquitous office equipment until they were phased out in favor of calculators in the 1980s and by personal computers beginning in about 1995. The older adding machines were rarely seen in American office settings by the year 2010. A spreadsheet is an interactive computer application program for organization and analysis of information in tabular form. Spreadsheets developed as computerized simulations of paper accounting worksheets. The program operates on...
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...Traditional Thermometer Often the cheapest and most popular type of thermometer, these are ideal for use at home or in non-specialist environments where traceable accuracy is not required. - Spirit level indication - Easy to read, typically measuring in both °C and °F - Can often be wall mounted or submerged in liquids - They require very little maintenance - Variable measurement range, resolution and accuracy. Dual Sensor / Multiple Sensor Thermometers Often used in a professional environment, these thermometers allow the simultaneous monitoring of two or more environments over both short and long periods of time. They are ideal for applications such as indoor and outdoor temperature comparisons, the monitoring of storage areas, and classroom maintenance. - Typically consist of main display unit and external temperature sensors - Each external sensor reading is displayed on the main unit - The main unit can typically be wall or desk mounted - Traceable accuracy is recommended - Variable measurement range, resolution and accuracy Irreversible Temperature Labels Temperature indicator labels are self-adhesive temperature proofing foils. They are ideal for use in processes where specific temperature values need to be achieved, such as sterilisation. They are also suitable for use where temperature values should not be exceeded, such as engine or bearing monitoring. They are a relatively cheap, yet effective way to achieve permanent records of accuracy. ...
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...Throughout history, police departments have utilized various technological advancements in an effort to improve their ability to fight crime and maintain public safety. These technological advancements have enhanced a variety of areas in policing, including communication and transportation. Helicopters have assisted police activities by providing law enforcement presence in the air. Helicopters have served an important role in modifying and improving police operations, but questions remain about the priority of this new form of vehicle technology in law enforcement. This is particularly true regarding the use of the helicopter because they are expensive to operate. There are many factors that a department should consider when deciding whether or not helicopters are worth the expense. A brief description of the history of the use of helicopters in policing will be given. Various uses of the helicopter in policing, the costs of using helicopters, and helicopter technology fighting crime will be discussed. Historical Background of Helicopters New York and Los Angeles were the first police departments to create aviation units. These units used fixed wing aircraft to serve rescue tasks with minimal involvement in daily patrol activities (Riley, 1997). The first uses of helicopters occurred in New York City during the 1940s. Their uses included rescuing civilians trapped in ice, spotting fires, following cars being pursued, and finding cars "buried in the swamps of Brooklyn and Queens"...
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...extra electronic security systems like day/ and night CCTV cameras that are resistant to vandalism. These CCTV cameras have powerful visual zooms, connected to superior detection techniques including thermal in addition to radar technique. By use of many, incorporated technologies, an intruder can possibly be notice and thus tracked immediately. Vigilant CCTV operators can after that uses the thermal images to direct their coworkers on the methods to capture the intruder. An added advantage of using these security cameras is that they can work regardless of climate or lighting conditions by use of these corresponding techniques. They provide quality images that are well recorded for follow-up trials by use of digital video storage.( Fusion of Security System Data to Improve Airport Security. Washington, D.C: National Academies Press, 2007.) The techniques of thermal imaging make it possible the selective use of observable light, together with flood lamps. This makes sure, for example, that airplane pilots are not all of a sudden agitated or blinded by security lighting. Network IP Employing IP (Internet Protocol) as well offers flexibility in placement of security camera, with wireless broadcast methods like signals of 3G mobile phone. This means that no physical connections such as fiber optic cabling will be needed together with their associated charges and installation disturbances. The virtual easiness of cameras that are enabled with IP installation can serve a double...
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...I. Current Situation: A. Current Performance: International Satellite Images (ISI) had been building a satellite to image the world at a resolution of one meter. At the resolution, a trained photo interpreter could identify virtually any military and civilian vehicle as well as numerous other military and non-military objects. The ISI team had been preparing a proposal for a Japanese government contractor. The contract called for a commitment of a minimum imagery purchase of $10 million per year for five years. In a recent executive staff meeting it became clear that the ISI satellite camera subcontractor was having trouble with the development of a thermal stabilizer for the instrument. It appeared that the development delay would be at least one year and possibly 18 months. When Jim approached Fred Ballard, the President of ISI, for advice on what launch date to put into the proposal, Fred told Jim to use the published date since that was still the official launch date. II. External Environment: A. General Environment: For the problem ofISI satellite camera subcontractor it appeared development delay would be at least one year and possibly 18 months. For that reasonthe level of trust between the parties was very low since the Japanese insisted upon completion guarantees. External forces include: Industry practice is to publicize optimistic completion dates that are rarely met. The financial industry that has profitability expectations which may be impossible...
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...Perimeter Security Applications Robinson Paulino DeVry College of New York Sec- 330 Professor: Gerard Beatty Perimeter Security Applications Outline Introduction 2 Intruder Detection Accuracy 3 Security Cameras 4 1. Using Size Filters for Video Analytics Accuracy 4 2. Geo-Registration and Perimeter Security Detection Accuracy 5 3. Clarity against a moving background 5 Perimeter Security Best Practices 6 Auto Tracking PTZ Camera 6 Long Range Thermal Camera 6 Covering Perimeter Camera Blind Spots 7 Determine a Perimeter Camera’s Range 7 Perimeter Fence . 8 Chain-Link Fences Protection 8 Electric and Infrared Fences 8 Fiber Optic Intrusion Detection Systems 9 In-Ground Intrusion Detection Systems 10 References 11 Perimeter Security Applications Introduction Physical security is the protection offered for property, these may be buildings or any other form of asset, against intruders (Arata, 2006). . The idea therefore, is to keep off unwanted persons or objects from ones premises. One’s premise is defined by a boundary which separates private property from the rest of the land. This boundary is referred to as the perimeter. The perimeter could be physical or logical. Physical security is intended to keep intruders from land and grounds around such property. Logical perimeters on the other hand, are for protection against computer sabotage or any other remote malicious activities (Fennelly, 2012). In a nutshell, perimeter security...
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...replaced PS/2 (mini DIN) mouse and keyboard, serial (COM), and parallel (LPT) ports in recent computer systems and providing greater speed. A recent computer desktop system has at least four USB ports and can support up to eight front-and-rear mounted USB ports. The three standard types of USB ports are (1) USB 1.1, (2) USB 2.0 a.k.a Hi-Speed USB -and (3) USB 3.0 a.k.a Superspeed USB and use either Series A a.k.a Type A or Series B a.k.a Type B types of connectors. Adding more USB ports can be done by using motherboard connectors for USB header cables, hubs and add-on cards. Serial (COM) I/O ports also known as RS-232 ports are used for external modems, serial mouse, plotters, label printers, serial printers, PDA docking stations, digital cameras and PC-to-PC connections used by file transfer programs such as DirectCable Connection, LapLink and Interlink. These ports come in two forms: DB-9M (male) and DB 25M (male) but only the former is not being used for older systems. This I/O port requires two hardware resources: Interrupt ReQuest (IRQ) and I/O port address. Parallel a.k.a Line Printer (LPT) port is one of the most versatile I/O ports and is used by devices such as tape backups, external CD-ROM and...
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...brighter view of stars seen through ground based telescopes. Without using this system, the images obtained through telescopes on earth are seen to be blurred, which is caused by the turbulent mixing of air at different temperatures. Adaptive optics in effect removes this atmospheric tremor. It brings together the latest in computers, material science, electronic detectors, and digital control in a system that warps and bends a mirror in a telescope to counteract, in real time the atmospheric distortion. The advance promises to let ground based telescopes reach their fundamental limits of resolution and sensitivity, out performing space based telescopes and ushering in a new era in optical astronomy. Finally, with this technology, it will be possible to see gas-giant type planets in nearby solar systems in our Milky Way galaxy. Although about 100 such planets have been discovered in recent years, all were detected through indirect means, such as the gravitational effects on their parent stars, and none has actually been detected directly. WHAT IS ADAPTIVE OPTICS ? Adaptive optics refers to optical systems which adapt to compensate for optical effects introduced by the medium between the object and its image. In theory a telescope’s resolving power is directly proportional to the diameter of its primary light gathering lens or mirror. But in practice , images from large telescopes are blurred to a resolution no better than would be seen through...
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...video • Electrical current charges groups of pixels o Active-matrix (also known as thin-film transistor [TFT] technology) • Used for better on-screen color quality • Charges each pixel individually as needed Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 4 Output Devices: Engaging Our Senses • Monitors (con’t.) o Size is diagonal measurement o Size is straightforward for LCDs but more complex for CRTs. o Quoted size—the size of the screen o Viewable area—the area unobstructed by the housing o Both must be disclosed by the manufacturer. Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 5 Output Devices: Engaging Our Senses • Resolution o Refers to the sharpness of an image o Number of pixels (picture elements) controls the resolution o Video...
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...Centre for Pre-University Studies FRA/FRB FRA/FRB April Intake Semester 1 2015/2016 Lecture Notes Workbook FPIT1023 Information and Communication Technology Prepared By: chai li kuen, chang pei fah, chik soon leong Name of Student: ________________________________________ Class: ________________________________________ Name of Lecturer/Tutor: ________________________________________ *The contents are not for sale and strictly meant for internal circulation only. Main references supporting the course 1. Gary, B &Shelly 2012, Discovering Computers - Complete: Your Interactive Guide to the Digital World, Course Technology. 2. O’Leary, TJ & O’Leary, L I 2011, Computing Essentials, McGraw-Hill. Additional references supporting the course 1. Morley, D & Parker, CS 2013, Understanding Computers: Today and Tomorrow, 14th edn, Course Technology, Thomson Learning, United States. 2. Williams, BK, Sawyer, SC 2013, Using Information Technology,10th edn, McGraw-Hill. Chapter 1: Introduction to Computers Objectives Overview: * Define the term, computer, and describe the relationship between data and information * Describe the five components of a computer * Discuss the advantages and disadvantages that users experience when working with computers * Distinguish between system software and application software * Differentiate among types, sizes, and functions of computers in each category *...
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