By: Bahredin Ali Muzeyin Materials Engineering Department Adama Science and Technology University MAEng3301 October 15‚2013 Abstract Deferent carbon content steel examined to determine the microstructure‚ concentration and hardness of the specimens. 0.2% C‚ 0.4% C and 1.0% C steel specimens were prepared by cutting. Abrasive cutter was used to cut the steels. Furnace was used for heat treatment at 900°C to make the phases separate when seen
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LAB REPORT HYPOTHESIS 1: Plants transpire the most when the environment has light and less humidity JUSTIFICATION: Water evaporates more readily because light stimulates the opening of the stomata and photosynthesis would occur. HYPOTHESIS 2: Transpiration would occur the second most when there’s light and lots of humidity. JUSTIFICATION: The light would allow photosynthesis to occur and the stomata to open but little if any diffusion of water out the leaf would occur. HYPOTHESIS 3:
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Bombay The long-run cost curve (LTC) is composed of a series of short-run cost curves. Assumes that the firm has only one plant‚ with the corresponding short-run cost curve given by STC1‚ Suppose the firm decides to add two more plants with associated two more short-run cost curves given by STC2 and STC3. Prof. Trupti Mishra‚ School of Management‚ IIT Bombay The long-run total cost curve (LTC) is then drawn through the minimum of the short-run cost curves‚ STC1‚STC2‚ and STC3. The
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Enzyme Lab Report Introduction The objective of this experiment was to determine if changes in pH or temperature affected the activity of enzymes‚ specifically the enzyme sucrase. Enzymes are protein molecules that act as biological catalysts to increase the speed of the reaction or to lower the activation energy of that reaction. However‚ the activity of an enzyme can be affected by physical factors such as pH and temperature because these factors alter the structure of the enzyme (Freeman‚ 2011)
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that nitrogen would cause a greater algal growth rate due to its higher abundance required in plant growth. Nitrogen and phosphorous were tested separately‚ where the concentration of each was increased while the other remained constant. The results showed a positive increase in algal growth rate in the phosphorous samples and a negative relationship with increased nitrogen levels. In this way‚ phosphorous acted as the more significant nutrient in algal growth and should be controlled to prevent eutrophication
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Experimental Laboratory Report: An investigation into the rate of osmosis Liana Gohery - 98332250 12/12/2014 Word count - ………3000……….. 1. Abstract This study was conducted to investigate the effect of concentration gradients on the rate of osmosis. Osmosis is the cellular transport of water‚ this study was conducted to show the significance of the rate at which this occurs. Dialysis bags were filled with three different concentrations of sucrose solutions and two with water. They were
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Laboratory report: Processes of an ideal gas Experiment 1 1. Plot a graph showing you experimental results from the instance where you pressurised the vessel to 30kPa. The graph should show: Time on the x-axis. Pressure (P1) and temperature (T1) on the y-axis Label all axes and provide a legend to identify each of the data series Provide the figure with a title in the lower box. Figure 1: The variation of pressure‚ P and Temperature‚ T with time‚ t. 2. The
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Effects of Temperature‚ pH‚ Boiling‚ and Hydroxylamine on the Enzyme Peroxidase Extracted From Brassica rapa Abstract In this experiment the enzyme peroxidase was extracted from from a turnip‚ Brassica rapa‚ and tested under different conditions. The effects of temperature‚ boiling‚ pH‚ and a competitive inhibitor were tested. The enzyme was tested at temperatures of 4°C‚ 24°C‚ 32°C‚ and 48°C. As the temperature increased‚ so did the activity of the enzyme
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Rachel Bohnenberger Professor Van Doorn ENVS 150-002 27 April 2015 GMOs Lab Report Introduction As the population of Earth increases exponentially‚ so does the demand for more food. One of the solutions to the question of how more food can be produced is Genetically Modified Organisms‚ or GMOs. There is an ongoing debate about whether or not GMOs are more beneficial or harmful to society. Some of the benefits to GMOs are: growing plants‚ such as corn‚ that are resistant to weeds and pests‚ larger
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Corte Madera Scientific Report Abstract I examine how rising or falling tide can affect the water level of Corte Madera Salt Marsh in this report. The data is from Wednesday (June 19th) and Thursday (June 20th). My hypothesis is that tide and water level have positive relationship. From the result‚ I learn that the water level and tide have positive relationship. However‚ when tide changes its direction‚ the water level is likely to stay or little change. Introduction On June 19th‚ my
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