Available online at www.sciencedirect.com Nanomedicine: Nanotechnology‚ Biology‚ and Medicine xx (2011) xxx – xxx www.nanomedjournal.com Review Article Upconversion nanoparticles: synthesis‚ surface modification and biological applications Meng Wang‚ PhDa‚c ‚ Gopal Abbineni‚ MSb ‚ April Clevenger‚ MSb ‚ Chuanbin Mao‚ PhDb ‚ Shukun Xu‚ MSa‚⁎ a College of Sciences‚ Northeastern University‚ Shenyang‚ People’s Republic of China Department of Chemistry and Biochemistry‚ University of Oklahoma
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OBJECTIVES: To determine the maximum wavelength of potassium permanganate. To plot the calibration curve of potassium permanganate. To determine the concentration of an unknown solution of potassium permanganate. INTRODUCTION: UV Spectrophotometer has 4 main components which is the UV light source‚ the sample‚ detector and the processor/recorder. Spectrophotometry is a technique that uses the absorbance of light by an analyte (the substance to be analyzed) at a certain wavelength to determine
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| | Assignment 2 | | Subject: General ChemistryLecturer: Dr. Ajith H. Herath | | Name: Kavini de Silva | 4/5/’013 | | BOHR THEORY Introduction Niels Bohr applies quantum theory Rutherford’s Atomic Structure by assuming that electrons travel in stationary orbits defined by their angular momentum. This led to the calculation of possible energy levels for these orbits and the postulation that the emission of light occurs when an electron moves into a lower
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Assumptions “There has never been a law of physics that did not demand ‘space’ and ‘time’ for its statement.” John Archibald Wheeler Starting Assumption: Physics today has a large body of experimental observations and mathematical equations that correspond to the experimental observations. Therefore‚ on a superficial level it would appear that we have a good theoretical understanding of nature up to a limit that will be called the frontier of knowledge. However‚ there are many counter intuitive
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INSTRUCTOR SOLUTIONS MANUAL SEARS & ZEMANSKY’S COLLEGE PHYSICS 9TH EDITION HUGH D. YOUNG Forrest Newman Sacramento City College Boston Columbus Indianapolis New York San Francisco Upper Saddle River Amsterdam Cape Town Dubai London Madrid Milan Munich Paris Montreal Toronto Delhi Mexico City São Paulo Sydney Hong Kong Seoul Singapore Taipei Tokyo Executive Editor: Senior Project Editor: Editorial Manager: Managing Editor: Production Project Manager: Production Management and
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the formulas and knowledge to control so many aspects of our modern lives. He predicted atoms before they were discovered. He was the first to postulate a particle of light. This first paper of 1905 described the photoelectric effect and predicted photons. This allowed the invention of television‚ digital cameras‚ and remote controls. This work allowed others the mechanical understanding of the universe to develop many of the advanced electronic inventions of the 20th century. Without his explanation
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“All I know is that I know nothing” argued the deep ancient philosopher Socrates. His argument is based on the fact that one cannot know anything with absolute certainty; they could only know something with a fractional amount of confidence. Socrates had written this quote nearly two thousand year ago. With our vast advances in modern technology‚ science‚ mathematics‚ and equipment to record data‚ over the last two millenniums‚ one would assume that we would long grow this view of not knowing anything
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TUTORIAL SHEET: 1 (Module1: Special Theory of Relativity) 1. Describe the Michelson Morley experiment and discuss the importance of its negative result. 2. Calculate the fringe shift in Michelson-Morley experiment. Given that: [pic]‚ [pic]‚ [pic]‚ and [pic]. 3. State the fundamental postulates of Einstein special theory of relativity and deduce from them the Lorentz Transformation Equations . 4. Explain relativistic length contraction and time dilation in special theory of relativity
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9.2 Space Students learn to: Students: 1. The Earth has a gravitational field that exerts a force on objects both on it and around it define weight as the force on an object due to a gravitational field perform an investigation and gather information to determine a value for acceleration due to gravity using pendulum motion or computer-assisted technology and identify reason for possible variations from the value 9.8 ms-2 gather secondary information to predict the value of acceleration
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15-2. (a) Fluorescence is the process in which a molecule‚ excited by the absorption of radiation‚ emits a photon while undergoing a transition from an excited singlet electronic state to a lower state of the same spin multiplicity (e.g.‚ a singlet → singlet transition). (b) Phosphorescence is the process in which a molecule‚ excited by the absorption of radiation‚ emits a photon while undergoing a transition from an excited triplet state to a lower state of a different spin multiplicity (e
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