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One of the paradigms of tissue engineering is cell transplantation (discussed in cant), for example, to restore failed liver function.
Since the human body does not have any 'spare' hepatocylee, allogeneic' liver cells are to be encapsulated and implanted into patients.
In designing the cell-encapsulation process, it is important that the cells receive enough oxygen to survive. Suppose Met we encapsulated a hepatocme aggrega. of 150um M diameter in a layer of a hiocompatible hydrogel and kept the capsule in a well-mixed cell-culture media.
Determine the maximum layer of the hydrogel membrane that would result in an oxygen concentration of at least 1.104 mol/mL everywhere in the capsule.
Assume that the diffusivity of oxygen in the hydrogel is similar to that in the cells (2x10-5 cm2/s) and that the bulk oxygen concentration is 3.5 x 10-8 mol/mL/s.
The maximum uptake ate of oxygen by the cells is 3.5 x 10-8 moL/mL/s. You may assume steady stale and zero order reaction kinetics.
Take the critical oxygen concentration needed as 6.10-8 mol/mL.
A 2014 Toyota Prius has a drag coefficient of Cd at road speed, using A m2 as the reference area. Determine the horsepower required to overcome drag at a velocity of v m/s. Calculate the answer if Cd= 0.26; A= 2.33m2 and v=30 m/s. Compare this fig..
acetyl chloride is a colorless fuming liquid used primarily in the chemical industry.a how is acetyl chloride produced?
production of chemicals from coalcoal has been considered a major component of u.s. energy reserves for a long time and
Chemical Oxygen Demand (COD, microbiological quality of drinking waters, Oxygen Sag curves, landfill gas, integrated hazardous waste management plan
Select a process variable (pressure / temperature / level / flow) and conduct a literature survey to determine recent developments in process instrumentation field. Identify any one novel instrument and explain in detail the working of the instr..
Test the knowledge and understanding of the concepts and procedures for process instrumentation and communication systems used in process industries.
write a report on application of reverse osmosis principles for the desalination of sea water.the consumable water on
process principles assignment production of formaldehydeworld formaldehyde production is estimated to be about 8
Propose a model which will show how temperature in the tank changes with time. State assumption used. Solve this model to obtain T(t) given that T(t=200s) = 50°C.
Give a description of the product and its physical and chemical properties, including a chemical structure drawing - Identify at least one company the produces your product and where the production facilities are located (city, country).
Indium antimonide (InSb) is a semiconductor with a narrow band gap of 0.17eV and an intrinsic carrier concentration of 2×1016cm-3. The mobility of electrons in InSb is 78000 cm2/V⋅s and their effective mass is 0.014m0, while the holes have a mobility..
Present/display a research paper with the topic Introduction to Petroleum Engineering,giving preferences to the changes that are generated through the discipline in our world today.
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