Modality for destroying malignant tissue

Assignment Help Mechanical Engineering

Reference no: EM13947427

One modality for destroying malignant tissue involves imbedding a small spherical heat source of radius ro within the tissue and maintaining local temperatures above a critical value Tc for an extended period. Tissue that is well removed from the source may be assumed to remain at normal body temperature (Tb = 37°C). Obtain a general expression for the radial temperature distribution in the tissue under steady-state conditions for which heat is dissipated at a rate q. If ro = 0.5 mm, what heat rate must be supplied to maintain a tissue tem- perature of T > Tc = 42°C in the domain 0.5 r 5 mm? The tissue thermal conductivity is approxi- mately 0.5 W/m · K. Assume negligible perfusion.

Reference no: EM13947427

Questions Cloud

What growth rate is expected for the company stock price : The stock price of Jenkins Co. is $53.90. Investors require a 13 percent rate of return on similar stocks. If the company plans to pay a dividend of $3.60 next year, what growth rate is expected for the company’s stock price?

Uniform heat generation within the shells : If there is uniform heat generation within the shells, obtain expressions for the steady-state, one-dimensional radial distributions of the temperature, heat flux, and heat rate. Contrast your results with those summarized in Appendix C.

Create a probability distribution for the number of bedrooms : Use the normal distribution to estimate the number of homes 18 or more miles but less than 22 miles from the center of the city. Compare this to the actual results. Does the normal distribution yield a good approximation of the actual results?

What is the risk-neutral probability : A stock price is currently $100. Over each of the next two six-month periods it is expected to go up by 10% or down by 9%. The risk-free interest rate is 5%. What is the risk-neutral probability?

Modality for destroying malignant tissue : One modality for destroying malignant tissue involves imbedding a small spherical heat source of radius ro within the tissue and maintaining local temperatures above a critical value Tc for an extended period. Tissue that is well removed from the sou..

The correlation between stocks : The correlation between stocks A and B is equal to the:

What is the expected return on an equally weighted portfolio : Rate of Return if State Occurs State of Economy Probability of State of Economy Stock A Stock B Stock C Boom 0.76 0.11 0.31 0.07 Bust 0.24 0.15 0.13 0.19. What is the expected return on an equally weighted portfolio of these three stocks?

Uniform volumetric generation rate : A spherical shell of inner and outer radii ri and ro, respectively, is filled with a heat-generating material that provides for a uniform volumetric generation rate (W/m3) of q. The outer surface of the shell is exposed to a fluid having a temperatur..

Identify deficiencies in the sufficiency and appropriateness : Identify deficiencies in the sufficiency and appropriateness of the evidence gathered in the audit of accounts payable of Grande Stores.Discuss what additional steps you would take to increase the sufficiency and appropriateness of the evidence ne..

User Account

All Pages