Analytical measurement: measurement uncertainty and statistics Ricardo Bettencourt da Silva‚ Ewa Bulska‚ Beata Godlewska-Żyłkiewicz‚ Martina Hedrich‚ Nineta Majcen‚ Bertil Magnusson‚ Snježana Marinčić‚ Ioannis Papadakis‚ Marina Patriarca‚ Emilia Vassileva‚ Philip Taylor Editors: Nineta Majcen‚ Vaidotas Gegevičius Joint Research Centre Analytical measurement: measurement uncertainty and statistics Editors: Nineta Majcen Vaidotas Gegevičius Authors: Ricardo Bettencourt da
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Introduction to Measurement Mass‚ Length‚ and Volume Introduction Much of what we know about the physical world has been obtained from measurements made in the laboratory. Skill is required to design experiments so that careful measurements can be made. Skill is also needed to use lab equipment correctly so that errors can be minimized. At the same time‚ it is important to understand the limitations of scientific measurements. Concepts Measurement Significant figures Accuracy
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com.hk 2 DEVELOPING SKILLS Set B Review Test 1 Grammar & Usage The Olympics (1) had changed the lives of (1) has changed _____________ (2) _____________ (3) to find _____________ many people in China. For security guard Z. Zhang‚ the final burst of fireworks over the Bird’s Nest Stadium for the closing ceremony (2) pointed him towards a new career. The 19-year-old Henan native came to Beijing (3) found a job before the Games got underway. P.62 http://www.aristo.com.hk 3 DEVELOPING
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Separation Of a Sample Mixture By Liquid-Liquid Extraction Reading assignment: Techniques in Organic Chemistry 2nd ed pages 75-99. 3rd ed pages 113-140. Topics and Techniques i) identification of solvent layers of two immiscible solvents ii) partioning of a compound between two immiscible solvents and determination of KD iii) liquid-liquid extraction with aqueous acids and bases with organic solvents. iv) use of drying agents Introduction Liquid-liquid extraction is a method used for the
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OF EXPERIMENT The purpose of this lab was to determine the magnitude of the uncertainties produced when making measurements using common lab equipment. II.APPARATUS AND MATERIALS NEEDED safety goggles distilled water (at 20°C) laboratory apron dropper laboratory balance 2 objects of unknown mass standard masses graduated cylinder‚ 10-mL graduated cylinder‚ 100-mL III.PROCEDURE Part A: Estimating the Uncertainty of a Balance 1.We put on lab aprons and goggles. Then‚ we used the
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AN1106 Power Factor Correction in Power Conversion Applications Using the dsPIC® DSC Author: Vinaya Skanda Microchip Technology Inc. The low cost and high performance capabilities of the DSC‚ combined with a wide variety of power electronic peripherals such as an Analog-to-Digital Converter (ADC) and a Pulse Width Modulator (PWM)‚ enable the digital design and development of power related applications to be simpler and easier. Some advantages of using a digital implementation for PFC are: • Easy
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Introduction. The theme of my course-paper is ‘Word-formation. Conversion’. At the first part of the work I’ve wrote some lines about the term ‘word’ as the smallest independent unit of speech. Next‚ there is the definition of the field of word-formation. At the following part you can find some information about the affix word-formation of nouns‚ verbs and adjectives. The next part named ‘conversion’. Where the terms ‘conversion’ and ‘zero-derivation’ are examined which are the synonyms for some
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UNIT 306 – PROMOTE EQUALITY‚ DIVERSITY AND INCLUSION IN WORK WITH CHILDREN AND YOUNG PEOPLE OUTCOME 1 –1.1 Identify the current legislation and codes of practice relevant to the promoting of equality and valuing of diversity Every Child Matters Framework 2003/ Children Act 2004 Race Relations Act 1976 and 2000 Disability Discrimination Act 1995/2005 SEN Code of Practice 2014 Human Rights Act 1998 The Sex discrimination Act 1975 1.2 - Explain the importance of promoting the rights of all children
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of the thesis is evident ) (essay map of the most imp points) Using your own logic and reasoning to prove your point & not relying solely on research Appropriately formulated claim Appropriate use of ethos‚ logos‚ pathos Relevant‚ detailed & varied support for the topic sentences & the thesis statement Appropriate use of logos‚ ethos & pathos Depth of development
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The Metric System Scientific data is always reported using metric system units of measurement. There are four basic metric measurement units: • Length = meter (m) • Volume = liter (l) • Mass (weight) = gram (g) • Temperature = ° Celsius (° C) All four metric system basic units can be converted into larger or smaller units simply by adding a prefix in front of the basic unit: Unit prefixes: • kilo (k) = Makes the basic unit 1000 times larger (103) • deci (d) = Makes
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