Given that tissue A has T2 ~ 40 ms and T1~500 ms ; tissue B has...

Given that tissue A has T2 ~ 40 ms and T1~500 ms ; tissue B has T2 ~ 70 ms and T1~250 ms; tissue C has T2 ~ 160 ms and T1~1500 ms. A sample consists of these tissues is imaged by MRI scanner. Compare the brightness of each tissue for T1-weighted, T2-weighted and PD-weighted MRI techniques. Explain your answer.

Expert Solution

gladiator answered 2 years ago

Two solid bodies at initial temperatures T1 and T2, with T1 > T2, are placed in...

Two solid bodies at initial temperatures T1 and T2, with T1 > T2, are placed in thermal contact with each other. The bodies exchange heat only with eachother but not with the environment. The heat capacities C ≡ Q/∆T of each body are denoted C1 and C2, and are assumed to be positive. (a) Is there any work done on the system? What is the total heat absorbed by the system? Does the internal energy of each subsystem U1 and...

If T1 , T2 : Rn → Rm are linear maps with range(T1) = range(T2), show...

If T1 , T2 : Rn → Rm are linear maps with range(T1) = range(T2), show that there exists an invertible linear map U:Rn →Rn so that T1=U◦T2

ON PYTHON: a) Write a function named concatTuples(t1, t2) that concatenates two tuples t1 and t2...

ON PYTHON: a) Write a function named concatTuples(t1, t2) that concatenates two tuples t1 and t2 and returns the concatenated tuple. Test your function with t1 = (4, 5, 6) and t2 = (7,) What happens if t2 = 7? Note the name of the error. b) Write try-except-else-finally to handle the above tuple concatenation problem as follows: If the user inputs an integer instead of a tuple the result of the concatenation would be an empty tuple. Include an...

On Python: a) Write a function named concatTuples(t1, t2) that concatenates two tuples t1 and t2...

On Python: a) Write a function named concatTuples(t1, t2) that concatenates two tuples t1 and t2 and returns the concatenated tuple. Test your function with t1 = (4, 5, 6) and t2 = (7,) What happens if t2 = 7? Note the name of the error. b) Write try-except-else-finally to handle the above tuple concatenation problem as follows: If the user inputs an integer instead of a tuple the result of the concatenation would be an empty tuple. Include an...

Suppose T1 and T2 are iid Exp(1). What is the probability density function of T1+T2? What...

Suppose T1 and T2 are iid Exp(1). What is the probability density function of T1+T2? What is the probability that T1+T2 ≥ 3?

Starting with "m1g - T1 = m1a ", "T2 - m2g = m2a" and "(T1 -...

Starting with "m1g - T1 = m1a ", "T2 - m2g = m2a" and "(T1 - T2) R = I ?" show the derivation steps of "(m1 - m2)g = (m1 + m2 + I/R^2) a

Consider the three transactions T1, T2, and T3, and the schedules S5 and S6 given below....

Consider the three transactions T1, T2, and T3, and the schedules S5 and S6 given below. Show all conflicts and draw the serializability (precedence) graphs for S5 and S6, and state whether each schedule is serializable or not. If a schedule is serializable, write down the equivalent serial schedule(s). T1: r1(x); r1(z); w1(x); T2: r2(z); r2(y); w2(z); w2(y); T3: r3(x); r3(y); w3(y); S5: r1(X); r2(Z); r1(Z); r3(X); r3(Y); w1(X); c1; w3(Y); c3; r2(Y); w2(Z); w2(Y); c2; S6: r1(X); r2(Z); r1(Z);...

Show that, for a Carnot engine operating between reservoirs at temperatures T1 and T2 (T1 >...

Show that, for a Carnot engine operating between reservoirs at temperatures T1 and T2 (T1 > T2), the thermal efficiency is given by Eta sub R = T1-T2/T1

Consider the following history H: T2:R(Y), T1:R(X), T3:R(Y), T2:R(X), T2:W(Y), T2:Commit, T1:W(X), T1:Commit, T3:R(X), T3:Commit Assume...

Consider the following history H: T2:R(Y), T1:R(X), T3:R(Y), T2:R(X), T2:W(Y), T2:Commit, T1:W(X), T1:Commit, T3:R(X), T3:Commit Assume that each transaction is consistent. Does the final database state satisfy all integrity constraints? Explain.

The following is the original code, (add, t1, 3, 5) (assign, a, t1) (add, t2, 3,...

The following is the original code, (add, t1, 3, 5) (assign, a, t1) (add, t2, 3, 5) (sub, t3, t2, z) (assign, b, t3) Constant folding is applied to give the following, (assign, t1, 8) (assign, a, t1) (assign, t2, 8) (sub, t3, t2, z) (assign, b, t3) After the constant folding is applied, the (assign, t2, 8) becomes redundant. What optimizations should take place in order to remove this redundancy in the constant folded code? Also show the optimized...

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