products including televisions‚ DVD players and other domestic appliances. LEDs are also used in seven-segment display. A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The term "laser" originated as an acronym for Light Amplification by Stimulated Emission of Radiation. Lasers
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use of steel tubes in general building construction. IS: 808 -1989 (3rd Rev) Dimension for hot rolled steel beam‚ channel and angle sections. IS: 811 -1987 (2nd Rev) Cold formed light gauge structural steel section - Specification. IS:813 -1986 (1st Rev) Scheme of symbols for welding. IS: 814 -1991 (5th Rev) Specification for covered electrodes for manual metal arc welding of carbon & carbon manganese steel. IS: 822 -1970 Code of procedure for inspection of welds. IS: 875 -1987(2nd
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INTEGRATED PRODUCT DEVELOPMENT AND STRATEGIES ASSIGNMENT – I S.SATISH BABU 11MD34 RAPID PROTOTYPING Rapid prototyping is the automatic construction of physical objects using additive manufacturing technology. The use of additive manufacturing for rapid prototyping takes virtual designs from computer aided design (CAD) or animation modeling software‚ transforms them into thin‚ virtual‚ horizontal cross-sections and then creates successive layers until the model is complete. It is a
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Introducing Reverse Engineering Reverse engineering is a field that has undergone a lot of development in recent times. It is used so as to reduce the time to market products‚ as well as easily develop or change existing designs so as to better suit a particular engineering purpose. Reverse engineering‚ as the name implies goes against the conventional ‘product development cycle’ (Raja and Fernandes‚ 2011)‚ where CAD drawings‚ and designs are generated after a prototype is existent. The world
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L. Boss SEC- 581 Legal & Ethic Issues in Security Management April 13‚ 2014 Professor Elliott DeVry University I. Objective Statement A. Security today B. Security of Tomorrow II. Electronic detection systems A. Inferred lasers B. Night Vision Cameras C. Eye scanners D. Palm Scanners E. Finger Print Scanners F. Security Code Devices III. Barriers A. Plastic B. Concrete C. Steel
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Class 1 Metallic bonding: Found in metals and alloys‚ 1‚ 2‚ or 3 valence electrons that are not bound to any particular atom in the solid. They drift throughout the entire metal. This results in a sea of electrons. These free electrons result in good electrical and heat conductivity. Coordination number is 8 or 12 (number of nearest neighbors). Ionic Bonding Found in compounds that are composed of both metallic and nonmetallic elements. Metallic element gives up valence electrons to the
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A barcode is an optical machine-readable representation of data‚ which shows data about the object to which it attaches. Originally‚ barcodes represented data by varying the widths and spacings of parallel lines‚ and may be referred to as linear or 1 dimensional (1D). Later they evolved into rectangles‚ dots‚ hexagons and other geometric patterns in 2 dimensions (2D). Although 2D systems use a variety of symbols‚ they are generally referred to as barcodes as well. Barcodes originally were scanned
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inside diameters o 43 mm and curvature ratios o 1 :13.95 and I :6.98. The corresponding Dean numbers f f were 9138 and 12 919. The Reynolds number for both cases was 34 132. Measurements o mean streamwise and r.m.s. velocities were made using laser Doppler anemmetry. Numerical modelling was based on f the commercial computer package ’PHOENICS’‚ employing a k-& turbulence model‚ standard wall functions and a
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wavelength of the laser light they use the closer they can make the grooves and the more information they can get on the disk. Also notice however that the track pitch decreases more rapidly than the wavelength of the lasers in the above table‚ this is because you can also reduce the track pitch if you increase what is called the Numerical aperture of the lens you use. In fact how much information you can store on a disk depends on how small you can get the "spot size" of the laser beam and the radius
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grinding (ECG) Classification of non traditional machining processes 3. Thermal - Thermal energy applied to small portion of work surface‚ removing by fusion and/or vaporization – Electric Discharge Machining (EDM)‚ Wire EDM‚ Electron Beam‚ Laser Beam‚ Arc Cutting 4. Chemical - chemical etchants selectively - using a mask - remove a portion of a
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