An electron microscope uses a beam of highly energetic electrons to illuminate the object. As compared to the optical microscopes‚ electron ones can produce highly magnified images. Electrostatic and electromagnetic lenses are used in electron microscopes. These lenses control the electron stream and focus it to a specific plane of the sample. This method is similar to that of an optical microscope‚ which uses light to focus on the specimen. The original version of electron microscope‚ called transmission
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Chapter II Review of Related Literature Chemical Wood Pulping Chemical wood pulping involves the extraction of cellulose from wood by dissolving the lignin that binds the cellulose fibers together. The 4 processes principally used in chemical pulping are kraft‚ sulfite‚ neutral sulfite semichemical (NSSC)‚ and soda. The first 3 display the greatest potential for causing air pollution. The kraft process alone accounts for over 80 percent of the chemical pulp produced in the United States
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Fiber Optics Sales Manager Devry University Cultural Diversity in Professions Fiber Optics Sales Manager As the Human Resource Director for my company I have the task of hiring a sales manager to sell the latest fiber optics products to leading wireless manufacturers of five key companies. Based on the information given to us in these brief resumes‚ I would extend the offer to Karen‚ the sales representative. Karen has five years of successful sales experience and strong technical
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Resolution of α-Phenylethylamine Date of Completion of Experiment: Monday‚ November 19‚ 2012 Date Report Submitted: Monday‚ December 3‚ 2012 Objective of Experiment The objective of this experiment was to learn the process of resolution of α-phenylethylamine. Materials Compound | Molecular Weight (g/mol) | Melting Point (°C) | Amount used | Moles used | (+) Tartaric Acid | 150.087 | 171–174 | 11.9 g | 7.93 x 10-2 | (+‚-) α-phenylethylamine | 121.18 | 184-186 | 10.0 ml | 8.25 x 10-2 |
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Technology Devices to Overcome the Limitations of Sight and Hearing Humans have sight and hearing limitation. Without any devices‚ our sight and hearing was limited. Most of the limitation of sight can be overcome with the help of certain optical instruments such as magnifying glass‚ microscope‚ binoculars and others. The range of frequency of hearing in human 20 Hz to 20 000 Hz. It was different according to the age of a person. Hearing limitations can be overcome by using devices such as
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Optical Distortion‚ Inc (ODI) is a company that has developed special contact lenses to harmful impact the eyesight of egg-laying chickens. The reduced vision from the contact lenses helps preserve the life of chickens‚ increase the productivity of egg laying and reduce costs for farmers using the lenses for their flocks. At the end of 1974‚ ODI’s owners and management were finalizing a strategic marketing plan to introduce the lenses commercially early in 1975 and work towards nationwide penetration
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RAM RAM is an acronym for Random Access Memory that is also known as volatile memory‚ because the data it holds is lost when the desktop PC or laptop/notebook computer using it is switched off. Briefly‚ RAM memory is used by the system to store data in the form of files for processing by a computer’s central processing unit (CPU)‚ also known as the processor. The amount of RAM memory used in modern desktop and laptop computers is expressed in megabytes (MB) and gigabytes(GB). A gigabyte (1GB)
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Rathus‚ SA. (2007). Psychology: Concepts and Connections. (8th edition). Belmont‚ California: Wadsworth Publishing. Eysenck‚MW‚ (200). Simply Psychology. (2nd edition). East Sussex‚ England: Psychology Press Ltd. Fox‚ K. (2010‚ January 9). Psychology: Optical Illusions. (Online(. http://www.keele.ac.uk/depts/aa/widening/uniworld/webclub/rs/optical.htm
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respect during the completion of this term paper. INDEX Content Page number 1. Inntroduction of Microscope 4 2. History 4 3. Functions 5 4. Types of Microscope a. Optical Microscopes 6 b. Dissecting Microscopes 8 c. Inverted Microscopes 9 d. Petographic Microscopes 10 e. Pocket Microscope 12 f. Scanning Electron Microscope (SEM) 13 g. Transmission
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microscopes – the two most common being the optical microscope‚ also known as a light microscope‚ and the electron microscope‚ which can be either a transmission electron microscope (TEM) or a scanning electron microscope (SEM). There are more differences than similarities between light microscopes and electron microscopes. Firstly‚ optical microscopes and electron microscopes both work in different ways. As the light source or condenser of an optical microscope focuses light on a tiny bright spot
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