2.9 Erbium Doped Fiber Laser The EDFLs can operate in several wave-length regions‚ ranging from visible to far infrared. The 1.55 region has attracted the most attention because it coincides with the low-loss region of silica fibers used for optical-communications [14]. The erbium absorption line that best matches with available high power pump diodes is in the 980 regime. At this wave-length‚ the absorption cross section of erbium is so low that an excessive amount of fiber would be required for
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means it’s the usage of ultra-light to measure the absorbance of the copper sulpate. The regions of the electromagnetic spectrum immediately adjacent to the high- and low- energy extremes of the visible region are known as the ultraviolet (UV) and infrared (IR) regions respectively. Thus a quantum of UV radiation possesses more energy than one in the visible region whilst the reverse is true for quantum of IR radiation. All spectrophotometric methods depends on the application of two basic laws which
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with an organic base purine derivative‚ such as inosine has great biological significance.1 For instance‚ many cofactors in various enzymatic reactions are both metal ions and nucleosides‚ such as organic base purine derivatives.1 By studying the infrared data for the boinding of insoine to the metal atom‚ the interactions between the purine derivative and metal can be studied. Experimental: All reagents and solvents used were purchased from commercial suppliers. All solvents and reagents used
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Preparation of Bromotriphenylmethane Abstract The structure of a major component of star anise oil was derived by analyzing its IR spectroscopy melting point of after oxidation and purification. From the evidence obtained‚ it was concluded that the exact structured should be p-methoxybenzoic acid. Introduction The purpose of this experiment is to determine the structure of the major component of star anise oil. It is already known that this component has a molecular formula C10H12O. This
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NATIONAL SENIOR CERTIFICATE EXAMINATION NOVEMBER 2008 PHYSICAL SCIENCES: PAPER I Time: 3 hours PLEASE READ THE FOLLOWING INSTRUCTIONS CAREFULLY 1. This paper consists of: • a question paper of 17 pages • a data and formula booklet of 3 pages (i – iii) Please make sure that your question paper is complete. 2. 3. 4. 5. 6. Remove the pages of data and formulae from the middle of this question paper. Use the data and formulae whenever necessary. Read the questions carefully. In Question 1 answer 1
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Energy Transformation Conduction‚ convection‚ and radiation are things that exist in our life. Thanks to that stuff we have things like electricity and things to cook too. I am going to explain things about energy transformation. Heat transfer is the way heat moves through matter to change the temperature of other objects. There are three types of heat transfers‚ Conduction‚ Convection‚ and Radiation. The first kind of heat transfer‚ conduction‚ is heat transferring through direct contact of materials
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Where the Incision is Located Inframammary incisions are the incisions that are made in the breast’s bottom crease‚ where the chest wall meets the lower protrusion of the breast. You will probably be instructed to wait at least 2 to 4 weeks before getting back to doing upper body exercises if this is the location of your implant. In the meantime‚ you should not lift your hands over your head during recovery. When you minimize the stain on this part of your body‚ it will result in healthier healing
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Sagar Institute of Science & Technology‚ Bhopal Department of Electronics and Communication Major Project On Laser based security system STUDENT’S BY Under the guidance of Satyendra Choudhary Mrs. Deepa Gyanchandani 0187EC101095 Nikhil Solanki 0187EC101066 Contents Introduction Objective Methodology Block Diagram
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AUTOMATIC RAILWAY SIGNAL A PROJECT REPORT Submitted by VAHALUWALA SUHEL R. SHETH HARSHIL R. PATEL KASHYAP A. TANDEL JAY S. TANDEL RAJ B. In fulfillment for the award of the degree of BACHELOR OF ENGINEERING in ELECTRICAL ENGINEERING Mahatma Gandhi Institute Of Technical Education And Research Center‚ NAVSARI Gujarat Technological University‚ Ahmedabad May‚ 2012 ELECTRICAL ENGINEERING DEPARTMENT 2012 Certificate This is to certify that the dissertation entitled
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