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Food limitation of population growth is described using the Monod model. Population growth is characterized by the maximum specific growth rate (µmax ) and the half-saturation constant for growth (Ks ).
(a) Calculate the specific growth rate (µ) of the population in Problem 5-1 growing at a substrate concentration of 25 mg/L according to Monod kinetics if it has a Ks of 50 mg/L.
(b) What percentage of the maximum growth rate for the exponentially growing population size would this be?
Design a vapor-compression refrigeration system that will maintain the refrigerated space at -15°C while operating in an environment at 20°C using refrigerant-134a as the working fluid
Air enters an adiabatic nozzle steadily at 300 kPa, 200 o C, and 30 m/s and leaves at 100 kPa and 180 m/s. The inlet area of the nozzle is 80 cm 2 . Determine (a) the mass flow raw through the nozzle, (b) the exit temperature of the air, and (c) the ..
the turbopump unit in the engine nominally operates at 7000 rpm, and a result of design issue, the actual thrust provided by the engine oscillates harmonically with an amplitude of 10 KN at the same rotational frequency as the turbopump unit.
what percentage of the shafts will be within tolerance?
Determine the initial angular acceleration of the bar when it is released from rest in a position where the bar has been rotated 30° clockwise from the position shown. Neglect any sag of the spring, whose mass is negligible.
Use microsoft excel functions to find the net present worth of the project, and the internal rate of return,and the annual worth of the project?
A minimum contact time of 30 mins is required to reduce the pathogen concentration from 100 pathogens/L to below 1 pathogen/L through a first order decay process. You plan on treating water at a rate of 1,000 gal/min.
Determine whether or not the truss structure is statically determinate, giving your reasoning. Identify which members in the truss are in tension and which are in compression. Calculate the axial forces in members BD and CD, stating clearly whether ..
You are furnished with three sizes of particles. One is gravel with porosity of 0.32, the second is a coarse grained sand with porosity of 0.37, and the third is a fine grained sand with porosity of 0.23.
An oil-storage area was abandoned 18 years ago. Oil spilled on the ground had saturated the soil at a concentration of 400mg/Kg of soil. A fast food chain now wants to build a restaurant at the site, and samples the soil for contaminant
A soil has a bulk density of 1.91 Mg/m^3 and a water content of 9.5%. The value of Gs is 2.70. Calculate the void ratio and degree of saturation of the soil. What would be the values of density and water content if the soil were fully saturated at th..
Evaluate the spread and depth at the curb for a triangular gutter section carrying a design discharge of 0.09m3/s and having a uniform cross slope of 0.022m/m, Manning’s roughness of 0.015, and longitudinal slope of 0.014m/m.
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