Homework Answers
Dynamic reciprocity is basically the ongoing, bidirectional interaction that takes place between cells and the microenvironment, around them specifically the extracellular matrix (ECM)(Thorne, 2015). In multicellular organisms, signals of the micro-environment are interpreted by the cells interpret. These signals lead to the coordination of the growth and development of the different tissues and organs and. According to Bissell et al. the functioning of tissue is regulated dynamically and reciprocally. The micro-environment, formed by the extracellular matrix (ECM) sends signals to the cells which reach the nucleus and control the cellular behavior according to the theory called ‘dynamic reciprocity’. These concepts are important for tissue engineering, a multidisciplinary science applying the principles of engineering and life sciences for the development of biological substitutes for restoring, maintaining and improving the functions of tissues. Thus the concept that cellular behavior is directed by the modification of the cell micro-environments leads to the usage of the biomaterials for building and imitating the ECM. The biomaterials or scaffolds should have precise characteristics as each cell resides in a different micro-environment,(Urrutia, 2017)
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DUI YUM SEM LUIS 2. (5 Pt) Explain dynamic reciprocity, and how it can be used...
9. Explain how we can design a vibration absorber which mitigates the vibration of the systems sh...
9. Explain how we can design a vibration absorber which mitigates the vibration of the systems shown in Fig 2. Fo sin ot Machine (mi) x1(t) Isolator (k1/2) Isolator (k12) Rigid base Dynamic vibration absorber Figure 2: 2 DOF system
9. Explain how we can design a vibration absorber which mitigates the vibration of the systems shown in Fig 2. Fo sin ot Machine (mi) x1(t) Isolator (k1/2) Isolator (k12) Rigid base Dynamic vibration absorber Figure 2: 2 DOF system
Can someone please explain how to solve the problem below? 6. State Space Systems: a. (5...
Can someone please explain how to solve the problem below?
6. State Space Systems: a. (5 pts) Determine the state space system in controllable canonical form that implements the transfer function Y(s)_ 252 +5 U(s) s+4s+7s +12 b. (10 pts) For the state space system given below, design a controller u =-Kx+v such that the eigenvalues of the closed loop system are -10, – 20. To 17 , y = Cx C = [25] x = Ax+Bu with A= ln...
Please explain how a) is solved, write what formula is used and explain in detail so...
Please explain how a) is
solved, write what formula is used and explain in detail so I can
solve any problem of this type.
2) Find the power and energy of the following signals (20 Points). a) x(t) = sin(t) b) y[n] = (-0.3)”u[n – 2] Solutions: Part (a): The signal r(t) is periodic because 1-cos(2t) (t) = sin(t) = ? Therefore, E = 0. To find the power, we can use the fact that the signal is sinusoid: P:...
Problem 5: A measurement system can be modeled by using the following second-order ODE: j(t)2)4y(t)= 8U (t) - (a) Deter...
Problem 5: A measurement system can be modeled by using the following second-order ODE: j(t)2)4y(t)= 8U (t) - (a) Determine the natural frequency, damping ratio, and sensitivity of the system. (b) If the system is used to measure a harmonic signal U(t) 5sin(5t), calculate the magnitude ratio and phase shift (c) What is the range of the signal frequencies that this device can measure so that the resulting dynamic error is within ± 20 %?
Problem 5: A measurement system...
1.Explain how arrays allow you to easily work with multiple values. 2 Explain how for loops...
1.Explain how arrays allow you to easily work with multiple values. 2 Explain how for loops can be used to work effectively with elements in an array. 3 Provide an example of using a for loop without an array. 4 What is the main difference between standard array and a dynamic array? 5 How are elements added to a vector in C++? 6 How can you remove an element from a vector in C++? 7 Why pass a vector by...
Feedback Control of Dynamic System Please Let me know how to solve this problem (5) For the following unity-feedback control system, Y(s) R(s)E D(s) (s+ 2) we want to design a controller D(s) D(s)+a)...
Feedback Control of Dynamic System
Please Let me know how to solve this problem
(5) For the following unity-feedback control system, Y(s) R(s)E D(s) (s+ 2) we want to design a controller D(s) D(s)+a) that makes the closed-loop stable for certain positive K values. Design the parameters a and b to satisfy the design condition through the root- locus method
(5) For the following unity-feedback control system, Y(s) R(s)E D(s) (s+ 2) we want to design a controller D(s) D(s)+a)...
g(t) = | cos(2) 5 if Ost<T if it st<21 if t 2 21 How can...
g(t) = | cos(2) 5 if Ost<T if it st<21 if t 2 21 How can we use unit step function to represent it? ag(t) = tult - T) + cos(2t)u(t - 2TT) +5ult - 27) b.g(t) = tu(t) - tu(t - TT) + COS(2t)u(t - T) - COS(2t)u(t - 2T) +5u(t - 2TT) c. g(t)=t + cos(2t)(u(t – T) - ult - 2TT)) +5 O d.g(t)=t-tult - 1) + cos(2t)u(t – ) - cos(2t)u(t - 2T) +5(1 - ult-27)...
14. (2 pt) Explain the effect of a discretionary cut in taxes of $40 billion on...
14. (2 pt) Explain the effect of a discretionary cut in taxes of $40 billion on the economy when the economy's MPC is .75. How does this discretionary fiscal policy differ from a discretionary increase in government spending of $40 billion? A tax cut of $40 billion will result in initial increase in consumption of S billion). (Note that $10Bil. is saved based on marginal propensity to save (MPS), that is 25 (because 1-MPC-MPS). Then .25 x $40-$10 billion). This...
Mathews and Fink show how Simpson's rule can be used to approximate the solution of an...
Mathews and Fink show how Simpson's rule can be used to approximate the solution of an integral equation (Problem 7, page 377). The procedure is outlined as follows Let the integral equation be given as u (x) = x2 + 0.1?(x2 +t)u(t) dt. This could. for example, be the expression for the velocity of some object at position x. Note here that t is just a dummy variable used for integration purposes. To solve this integral equation via Simpson's rule...
Step functions can be used to define a window func- tion. Thus u 2) - u(t...
Step functions can be used to define a window func- tion. Thus u 2) - u(t -3) defines a window 1 unit high and 5 units wide located on the time axis between-2 and 3. A function f(t) is defined as follows: f(t) = 0, 0sts 10s 5t 100, 10s st s 30 s 一一50 30 s St s 40 s; 2.5t-150 40 s S t s 60s 0 a) Sketch f(t) over the interval 0 s s t 3...
9. Explain how we can design a vibration absorber which mitigates the vibration of the systems shown in Fig 2. Fo sin ot Machine (mi) x1(t) Isolator (k1/2) Isolator (k12) Rigid base Dynamic vibration absorber Figure 2: 2 DOF system
9. Explain how we can design a vibration absorber which mitigates the vibration of the systems shown in Fig 2. Fo sin ot Machine (mi) x1(t) Isolator (k1/2) Isolator (k12) Rigid base Dynamic vibration absorber Figure 2: 2 DOF system
Can someone please explain how to solve the problem below?
6. State Space Systems: a. (5 pts) Determine the state space system in controllable canonical form that implements the transfer function Y(s)_ 252 +5 U(s) s+4s+7s +12 b. (10 pts) For the state space system given below, design a controller u =-Kx+v such that the eigenvalues of the closed loop system are -10, – 20. To 17 , y = Cx C = [25] x = Ax+Bu with A= ln...
Please explain how a) is
solved, write what formula is used and explain in detail so I can
solve any problem of this type.
2) Find the power and energy of the following signals (20 Points). a) x(t) = sin(t) b) y[n] = (-0.3)”u[n – 2] Solutions: Part (a): The signal r(t) is periodic because 1-cos(2t) (t) = sin(t) = ? Therefore, E = 0. To find the power, we can use the fact that the signal is sinusoid: P:...
Problem 5: A measurement system can be modeled by using the following second-order ODE: j(t)2)4y(t)= 8U (t) - (a) Determine the natural frequency, damping ratio, and sensitivity of the system. (b) If the system is used to measure a harmonic signal U(t) 5sin(5t), calculate the magnitude ratio and phase shift (c) What is the range of the signal frequencies that this device can measure so that the resulting dynamic error is within ± 20 %?
Problem 5: A measurement system...
Feedback Control of Dynamic System
Please Let me know how to solve this problem
(5) For the following unity-feedback control system, Y(s) R(s)E D(s) (s+ 2) we want to design a controller D(s) D(s)+a) that makes the closed-loop stable for certain positive K values. Design the parameters a and b to satisfy the design condition through the root- locus method
(5) For the following unity-feedback control system, Y(s) R(s)E D(s) (s+ 2) we want to design a controller D(s) D(s)+a)...
g(t) = | cos(2) 5 if Ost<T if it st<21 if t 2 21 How can we use unit step function to represent it? ag(t) = tult - T) + cos(2t)u(t - 2TT) +5ult - 27) b.g(t) = tu(t) - tu(t - TT) + COS(2t)u(t - T) - COS(2t)u(t - 2T) +5u(t - 2TT) c. g(t)=t + cos(2t)(u(t – T) - ult - 2TT)) +5 O d.g(t)=t-tult - 1) + cos(2t)u(t – ) - cos(2t)u(t - 2T) +5(1 - ult-27)...
14. (2 pt) Explain the effect of a discretionary cut in taxes of $40 billion on the economy when the economy's MPC is .75. How does this discretionary fiscal policy differ from a discretionary increase in government spending of $40 billion? A tax cut of $40 billion will result in initial increase in consumption of S billion). (Note that $10Bil. is saved based on marginal propensity to save (MPS), that is 25 (because 1-MPC-MPS). Then .25 x $40-$10 billion). This...
Mathews and Fink show how Simpson's rule can be used to approximate the solution of an integral equation (Problem 7, page 377). The procedure is outlined as follows Let the integral equation be given as u (x) = x2 + 0.1?(x2 +t)u(t) dt. This could. for example, be the expression for the velocity of some object at position x. Note here that t is just a dummy variable used for integration purposes. To solve this integral equation via Simpson's rule...
Step functions can be used to define a window func- tion. Thus u 2) - u(t -3) defines a window 1 unit high and 5 units wide located on the time axis between-2 and 3. A function f(t) is defined as follows: f(t) = 0, 0sts 10s 5t 100, 10s st s 30 s 一一50 30 s St s 40 s; 2.5t-150 40 s S t s 60s 0 a) Sketch f(t) over the interval 0 s s t 3...
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