CHAPTER 1 1.1 INTRODUCTION Data that can be read and understood without any special measures is called plaintext or cleartext. Here Plain image is converted as Plaintext.The method of disguising plain image in such a way as to hide its substance is called encryption. Encrypting plain image results in unreadable gibberish called cipher image. You use encryption to ensure that information is hidden from anyone for whom it is not cipher image to its original plain image is called decryption. Figure
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Title: Investigating the current - potential difference relationship for a metal wire. Aim: To design an experiment that will facilitate an I - V Graph to be ascertained of a metal wire and thus find the resistance of the wire by deriving the inverse of the gradient of the graph. Skill: Planning & Designing Theory: Resistance is a property of any object or substance to resist or oppose the flow of an electrical current. The quantity of resistance in an electric circuit determines the amount of current
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Module 2 Data Communication Fundamentals Version 2 CSE IIT‚ Kharagpur Lesson 1 Data and Signal Version 2 CSE IIT‚ Kharagpur Specific Instructional Objectives At the end of this lesson the students will be able to: • • • • • • • • • Explain what is data Distinguish between Analog and Digital signal Explain the difference between time and Frequency domain representation of signal Specify the bandwidth of a signal Specify the Sources of impairment Explain Attenuation and Unit of Attenuation
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1.0 Introduction Malaysia has an independent‚ highly participative democracy‚ which already early in its independence‚ held a unique record in social development‚ as measured in health and education. The overall unemployment rate is not exceptional in an international perspective. The interesting thing about Malaysia is that there exists a structural unemployment among the educated youth‚ which in spite of their relatively high level of education wait for a long time before entering the work force
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1.1 Working principle of video camera The television camera changes light into an electronic signal that can be stored (using video tape‚ optical disks‚ or computer memory‚ transmitted‚ and displayed on a television receiver or monitor. Whether digital or analog‚ and regardless of their size‚ cost‚ and quality‚ all video cameras operate on the same basic principle: they transduce (translate) the optical image that the lens sees into a corresponding video picture. More specifically‚ the camera converts
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22. Conditional- if it is a line then it contains at least two points Inverse- if it is not a line then it does not contain at least two points Converse- If it contains at least two points then it is a line Contrapositive- if it does not contain at least two points‚ then it is not a line 23. Conditional- If there are 3 noncollinear points‚ then there is exactly one plane Inverse- if there are not exactly 3 collinear points‚ then there is not exactly one plane Converse- if there is exactly one
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of society.” Druckman and Jackson found that affluence was a big factor in determining carbon emission disparities but it was not the only factor. Using a Local Area Resource Analysis (LARA) model‚ they realised that dwelling type and household composition also played a part. Using a variety of different methods and data‚ Druckman and Jackson tried to understand the variations in the UK’s carbon emissions. Examples of the different types of data in the literature were: “Allocation table for high level
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is-gay lussac Mike Wagura Chemistry Honors 7TH Period April 25‚ 2011 JOSEPH LOUIS GAY-LUSSAC Joseph Louis Gay-Lussac was born in December 6‚ 1778 in Saint Leonard de Norblat in France. He was the eldest son of Antoine Gay. Antoine Gay was a judge at Point-de-Norblac and had acquired the name Lussac a small family property in a nearby town. Gay Lussac received his early education in his hometown of Saint- Leonard. Since an early age‚ Gay-Lussac had a curious interest in science. He
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Light that is visible to the human eye is a small portion of the electromagnetic spectrum which can vary in colour based on the wavelength of what is being seen at any particular time. This visible light has a primary function of causing electrons to become more active with higher energy rates. The colour that is seen revolves around the size of this portion which is noted as the wavelength. White light is a culmination of all colours which is the cause of it being the brightest. Furthermore‚ when
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