The Norden Bombsight By Sterling W Lumpkin HIST 4910 01 December 2008 [pic] "2nd Lieutenant Everett Glen Hanes poses for a picture with his Norden Bombsight in the nose of his Martin B-26 Marauder of the 9th Air Force‚ 344th Bomb Group‚ 497th Squadron" (Text and Photo: Twin Beech) Introduction As a High School student‚ I was privileged to be taught science by a World War II B-17 Bomber Pilot‚ Mr. Fairbanks‚ who had a gift for weaving aerospace science into our classes. He also offered
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dissolved. Add 4 drops of phenophitrolein. 12. Fill the buret with NaOH (100 mL) 13. Let the buret drip into the flask until the solution turns pink. Results: The molarity of the HCl and NaOH table ranged from 0.907-0.976‚ which showed neither accuracy nor
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improved by using different metals or trying to pat the pieces of metal as dry as possible before placing them into the graduated cylinders. A question raised in performing this lab and analyzing this data may relate to the line of regression’s accuracy. For example‚ could certain points be deleted in order to have a more accurate results? If so‚ which ones‚ and what set of points would give the most accurate slope of lead‚ closest to 11.343716
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------------------------------------------------- Keywords: Sampling‚ Central Tendency‚ Accuracy‚ Precision‚ Quantity‚ Statistical Tests RESULTS AND DISCUSSION In the experiment‚ the class was able to use an analytical balance properly‚ gain an understanding of some concepts of statistical analysis‚ and apply statistical concepts in analytical chemistry. The data was gathered using an electronic analytical balance. This equipment has a precision and accuracy that exceeds 1 part in 106 at full capacity. It can measure
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143 5 Total Opinion as sentences 395 6 Percentage 85.86% 1.3.2 Evaluation The performance of the system is evaluated on the basis of Precision‚ Recall and F-Measure [48]. Precision is the fraction of extracted reviews that are relevant. Recall is the fraction of relevant reviews that are extracted. and F-Measure is the measure of the overall results accuracy
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However‚ the percent error was still relatively low. With a value of 13.4% error as shown in Table 2‚ there is an accuracy deficiency of an order of magnitude of +/- .1 with 3 significant figures representing the degree of accuracy. The CV% for the difference in the ΔH°rxn for Reaction 3 and the sums of Reactions 1 and 2 is .037‚ meaning that the error was assessed and it is relatively small. Both values make it still reasonable
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BIOL 1F90 Expt. #1: Protein Quantification Student Name: Carlos Osorio Student ID: 5220710 Lab Section: 34 Date Experiment Performed: Sept. 26th‚ 2012 Lab Partners: K. Cloutier J. Yang ABSTRACT Protein concentration analysis is primarily done through an accepted form commonly referred to as the Bradford Protein Assay. The main purpose of this experiment was to observe and record the various protein samples’ absorbency values through the calibrated readings of a spectrophotometer
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ability to assess one’s own reasoning. To be good at assessment to take apart in thinking‚ examining and with respect to standard of quality. The following is the list for intellectual standards are clarity‚ relevance‚ logicalness‚ accuracy‚ depth‚ significance‚ precision‚ breadth‚ and fairness. The intellectual standards goal is for the goal is for these questions to become spontaneous in thinking that they form a natural part of our inner voice‚ to become better reasoned. (Richard Paul‚ 2012).
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clinical trial‚ researchers are trying to specify characteristics of trials (that will be more discussed in the following) with considering intervention implementation constraints (e.g.‚ time‚ financial‚ and ethical constraints) to maximize the precision and stability of the obtained results about the intervention effect. Although this aspect of clinical trials has received the most attention in the CTD literature‚ optimization approaches have rarely been used in these studies. Thus‚ the optimal
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PROCEDURE HOME or INDEX for links to other procedures.V-BLOCKS V-Blocks are often used to check true position gages and runout in the lab. They are also used for work holding and inspection on the shop floor. In some shop work holding applications‚ the accuracy would not need to be to the level of lab or inspection gage blocks. V-blocks are precisely square‚ and the V-groove should be in the exact center of the block. The prime purpose of a V-block is to hold cylindrical pieces or to precisely establish
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