- AM‚ FM The following assumptions are made: • Channel model – distortionless – Additive White Gaussian Noise (AWGN) • Receiver Model (see Figure 1) – ideal bandpass filter – ideal demodulator & % ’ Modulated signal s(t) x(t) $ Demodulator Σ BPF w(t) Figure 1: The Receiver Model • BPF (Bandpass filter) - bandwidth is equal to the message bandwidth B • midband frequency is ωc . Power Spectral Density of Noise • and is defined for both positive and negative frequency (see
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Recrystallization Estopace‚ Edgie1‚ Polintan‚ Clarisse K. Professor Edgie Estopace‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapua Institute of Technology; Clarisse Polintan‚ CHM145L/A21‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapua Institute of Technology ABSTRACT This experiment is all about identifying the appropriate solvent for recrystallization and technique and to use the recrystallization technique in purifying a solid sample. Most organic
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Traditional way of synthesizing sensitive rhodamine starts with rhodamine B‚ amino compound‚ and some alkali additive in the presence of weak base. However‚ for RH-PY‚ the stearic hindrance of pyrene slows the reactivity‚ and the reaction does not go to completion. Therefore‚ the reaction procedure was modified as follows. First‚ HATU and DIPEA were used to activate the carboxyl group of rhodamine B‚ then the activated rhodamine B was reacted with 1-aminopyrene. By introducing this method‚ the reaction
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would like to thank Dr.Chandima Ekanayake – Coordinator‚ Final year undergraduate project. CONTENTS CHAPTER 01 Introduction 01 CHAPTER 02 Literature Review 02 CHAPTER 03 System Level Design 05 CHAPTER 04 Filter Design 15 CHAPTER 05 Circuit Simulation and Design Verification 20 CHAPTER 06 Problem Encountered 25 CHAPTER 07 Conclusion 26 APPENDIX 27 CHAPTER 01: INTRODUCTION 1.1 OBJECTIVE Build a solid
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| Filter Funnel | X1 | Filter Paper | X1 | Conical Flask | X1 | Electronic Balance | X1 | Sand-Salt Sample | Given Amount | Evaporating Basin | X1 | Bunsen Burner | X1 | Gauze Mat | X1 | Tripod | X1 | Thermometer | X1 | Distilled Water | Given Amount | Method: 1. Record mass of sand-salt sample‚ beaker‚ evaporating basin and filter paper on electronic balance. 2. Add distilled water to sample. Mix thoroughly with stirring rod until salt dissolves. 3. Filter out
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Materials Reagents Collection of hair samples 1. Stainless Steel Scissors 2. Plastic bags 3. Gloves 1. Hot water 2. Ethanol Washing the hair samples 1. Forceps 2. 100 ml beakers 3. Electronic weighing balance 4. Magnetic stirrer 5. Magnets 6. Filter paper 1. Diethyl Ether 2. Acetone 3. Deionised water 4. pH 6 Shampoo Digestion of hair
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Presence of Insecticides & Pesticides in Fruits & Vegetables SCHOOL : K .V N T P C CHEMISTRY PROJECT REPORT STUDY THE PRESENCE OF INSECTICIDES AND PESTICIDES IB FRUITS AND VEGETABLES Name : Class : Reg. No : Examiner Teacher-in charge. CERTIFICATE This is to certify that the project was done by …………………………… Reg. No ……………….. Is in partial fulfillment of Chemistry Practical Examinations
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Part 2 Case 3 – E Question (MICRO ISSUES ) 1. should those who developed the Brita campaign have investigated whether the Filters could be recycled before they were public with the Effort ? 2. Should news journalist investigate campaigns of this sort and write about what they find? 3. How does this effort at corporate social responsibility seem like or unlike others – for example ‚ turning in the tops of yogurt containers in exchange for corporate donation to breast cancer research ? Answer
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beakers; filter papers; funnel; wires; retort stand; scales; 3 soil samples; distilled water. Method 1) Pour 100 mL of 0.1 mol NaCl solution onto beaker‚ place electrodes in solution and run 4V through the circuit as shown in the following diagram 2) Record amperage from ammeter. 3) Repeat steps 1 & 2 for 0.5‚ 1‚ 1.5‚ 2‚ 2.5‚ 3‚ 3.5 mols NaCl solution. 4) Observe results for a pattern linking salt level and amperage. 5) Mix soil and water to dissolve salt from soil. 6) Filter mixture to
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in laboratories for a pharmaceutical company developing and maintaining standards to ensure consistency in the production of medicine. Procedure: First a weigh boat was weighed as precisely as possible‚ and then the weigh boat was weighed with a filter paper placed inside it. Next‚ about 0.2 grams of the unknown nickel compound C was weighed in a clean beaker. The mass of the unknown was determined as precisely as possible. The sample was put in about 20 mL of deionized water and stirred together
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