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Write a computer program that implements the estimation of a first-orderplus-dead-time transfer function with the tangent method and then determine the PID parameters using the Ziegler-Nichols formula. Apply the program to the system
and simulate the response of the control system when a set-point step change and a load disturbance step are applied. Discuss the choice of the time constant value based on the results.
Suppose that John could work 365 days per year and could earn $200 per day for each day heworked. Draw his budget line with respect to his labor-leisure choice
Would this method be acceptable for income-tax purposes if the income-tax laws do not permit annual depreciation rates greater than twice the minimum annual rate with the straight-line method?
What is the purpose of a suture? What are some of the important properties that must be considered when selecting a biomaterial for use as a suture? List four biomaterials that are commonly used for sutures.
What is the binding energy in J per nucleon for the cobalt-60 nucleus (atomic masses: 60Co 59.9338 amu; 1H=1.00782 amu). What is the de Broglie wavelength of the emitted particle if it has a velocity equal to 0.90c where c is the speed of light?
At one time, biologists thought that fungi were merely forms of plants that had lost their chlorophyll and had returned to saprotrophy to gain food. Why is this no longer considered a solid theory?
Determine the fraction of load for which the efficiency is a maximum, and calculate the corresponding efficiencies for the power factors of unity, 0.8, and 0.6.
By a two-way analysis of variance determine whether the variance between the reactors and between the temperatures is highly significant (0.01 probability level). Even though no replicates were made at any condition,
A 10-kVA transformer is known to have an iron loss of 150 W and a full-load copper loss of 250 W. If the transformer has the following load cycle, compute its all-day efficiency:
Research the impact mining has had on the early history of Australia. In approximately 1,500 words choose an Australian town or city where mining started in the 18th or 19th or even early 20th Century and describe its early history.
In the Deacon process for the manufacture of chlorine, HC1 and O2 react to form Cl2 and H20. Sufficient air (21 mole% 02, 79% N2) is fed to provide 35% excess oxygen and the fractional conversion of HCI is 85%.
Select suitable valve types for the following applications: a. Isolating a heat exchanger. b. Manual control of the water flow into a tank used for making up batches of sodium hydroxide solution.
Suppose the volumetric flow rate of the gas leaving the condenser is 20.0m3/h Calculate the rate (kg/h) at which acetone is vaporized in the solvent recovery unit.
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