Observational error

First, data is prepared for being processed through sequential subsequent phases. First for every image per subject is loaded in the gray scale mode. Next, vein image is adjusted using a threshold detected adaptive for each image. The vein image is segmented to recognize the region of interest, vein region. For the vein region a feature extractor is used to extract the most power features exists. These features are stored labeled for the subject name for father classification and recognition. Dataset

seconds provided. Similarly, copper did not react at all as expected due to its low metal reactivity. However, between the maximum and minimum metals, in terms of reactivity, aluminium, zinc and iron showed no sign of expansion in the 30 second observational time limits. Nevertheless, the aluminium balloon expanded after approximately 40 minutes. As neither zinc nor iron reacted in this time span, it was confirmed that aluminium had the second highest metal reactivity, as anticipated from the hypothesis

Only random errors were made. The literature value for the enthalpy change of the last reaction which was provided by our teacher is -97 kJ mol-1. Agreeing this value, our result can be considered accurate. As told at the beginning of this lab report, our aim of this

metal being oxidized as the bulk metal losses one or more electrons During the thickness measurement of any corrode plate, Any material whose thickness is lower than the low limit of the probe due to corrosion of metal piece will cause Measurement errors. Sometimes the displayed reading is twice as big as the actual thickness. To prevent these

Chemistry Lab Report Determining Best Calorimeter Dylan Mendonca 12-B Background: Calorimetry is the science of measuring the heat of chemical reactions or physical changes. Calorimetry is performed with a calorimeter. A calorimeter can be any container from a cup to a Calorimeters need to be well insulated as calorimetry relies on the fact that temperature change only occurs within the solution and that no heat escapes to the surroundings. That is why it is important that calorimeters are well

apparent from the graph above that an error has occurred during the 15% sucrose trial as it appears as an outlier also it can be estimated from the graph that approximately10% sucrose solution is the isotonic condition as there is no big change in mass. Discussion Though the theory following the hypothesis is correct and the experiment was carried out with as much attention as possible in a high school laboratory, the results obtained were still indicative of a few errors and did not support the predicted

YEAR 10 – SCIENCE – 2015 PRACTICAL SKILLS – Bouncing Balls NAME: Nick Deluca TASK: Design an experiment that will test a factor affecting the height to which a ball bounces. 1. Identify possible variables affecting the dependent variable 2. Select one variable to test 3. State an aim and a testable hypothesis for your chosen variable 4. Design a brief procedure to test this hypothesis 5. Design an appropriate results table. 6. Conduct the experiment 7. Record appropriate data and draw a graph

2 This SOP outlines the procedures to follow in the investigation and documentation of OOS results, to identify laboratory error, reporting requirements, documenting corrective/preventive actions, and discussions with the client about re-sampling and/or retesting. Samples are held until the investigation is completed. 2.3. OOS investigations which identify a laboratory error are tracked and trended by the Quality Assurance Unit (QAU) as part of the laboratory’s Non-Conformance Report (NCR) and CAPA

Leonardo Cufone Aim: to determine the effect of temperature on a chemical reaction. Hypothesis: If the temperature (I.V.) of materials in the reaction are increased, the reaction time (D.V.) will decrease. Variables: In this experiment, the temperature (in degrees Celsius) of the chemicals is the independent variable. To change the temperature, the materials are placed in a bath of water being heated by a hotplate. The reaction time (in seconds) is the dependent variable of this experiment. This

Discussion The experiment investigated the relationship between temperature and the rate of reaction for the reaction of iron (III) nitrate with sodium thiosulfate. The results show that the rate of iron (III) reacting forming iron (II) increases as the temperature of the solutions increases. Table 1 shows that when the temperature of the reactants is 4℃, it takes 54.173 seconds for the reaction to occur to the stage that the cross to appears. The time taken for the solution to reach the same transparency