How does interphase precipitation work for alloy hardening?

Name two characterisation techniques that could be used to image interphase precipitation.

Explain why photoinitiators are needed in most commercial VP resins. Explain what these photoinitiators do. Please summarize the answer

Explain with schematics the two-photon polymerization technique.What is its advantage over stereolithography.

Create cause-and-effect diagrams for a long line at the supermarket.

A rocket is fired from rest at x=0 and travels along a parabolic trajectory described by y2=[120(10^3)x]m.

Part A

If the x component of acceleration is ax=(1/4t^2)m/s^2, where t is in seconds, determine the magnitude of the rocket's velocity when t = 8 s.

Express your answer using three significant figures and include the appropriate units.

SubmitRequest Answer

Part B

Determine the magnitude of the rocket's acceleration when t = 8 s.

Express your answer using three significant figures and include the appropriate units.

SubmitRequest Answer

Steam turbine power plant practical report

this is my matlab code for class, my professor commented "why is the eps an input when it is set inside the function and not specified as a variable?

how do i fix?

function[] = ()

%Declare Global Variables

global KS;

global KC;

KC = 0;

KS = 0;

End = 0;

while (End == 0)

choice = questdlg('Choose a function', ...

'Fuction Menu', ...

'A','B','B');

switch choice;

case 'A'

Program = 'Start';

while strcmp(Program,'Start');

Choice = menu('Enter the Trigonometric Function you wish to compute', 'Sin', 'Cos','End');

switch Choice;

case 1 %sine

x = input('Input an angle (in Radians):\n'); %x = theta

eps = input('Input a value for epsilon:\n'); %eps=tolerance

[sum] = sine(x,eps);

fprintf('Matlab answer: %5.2f\n',sin(x))

fprintf('Taylor answer: %5.2f\n',sum)

fprintf('KS = %d\n',KS)

fprintf('KC = %d\n',KC)

case 2 %cosine

x = input('Input an angle (in Radians):\n'); %x = theta

eps = input('Input a value for epsilon:\n'); %eps=tolerance

[sum] = cosine(x,eps);

fprintf('Matlab answer: %5.2f\n',cos(x))

fprintf('Taylor answer: %5.2f\n',sum)

fprintf('KS = %d\n',KS)

fprintf('KC = %d\n',KC)

case 3

Program = 'End';

end

end

case 'B'  

% Triangle 1 Given Values

A = 1.0472;

b = 7;

C = 0.5236;

%Finding sides a and c and angle B using Law of Sines

B = pi - (A+C);

c = sine (C) / (sine(B)/b);

a = sine (A) / (sine(B)/b);

disp(['Triangle 1'])

fprintf('angle B in radians = %f\n', B);

fprintf('length of side a = %f\n', a);

fprintf('length of side c = %f\n', c);

%Triangle 2 Given Values using Law of Sines and C osines

a = 3;

B = 1.5708;

c = 4;

%Finding side b and angles A and C

b = sqrt((a^2)+(c^2)-(2*a*c*cosine(B)));

C = asin(c * (sine(B)/b));

A = asin(a * (sine(B)/b));

disp(['Triangle 2'])

fprintf('angle of C (in radians) = %f2\n', C);

fprintf('length of side b = %f2\n', b);

fprintf('angle A (in radians) = %f2\n', A);

fprintf('KS = %d\n',KS)

fprintf('KC = %d\n',KC)

end

End = input('Enter 0 to continue or other # to stop: ');

end

%Sine function

function[sum]= sine (x,eps)

KS = KS + 1;

eps = 0.0001;

sum=0;

i=0;

k=1;

while abs(k)>eps

%Taylor Series of Sine

k = (((-1).^i)*((x).^(2*i +1)))/(factorial((2*i)+1));

i = i + 1;

sum= sum+k;

end

end

%Cosine function

function [sum] = cosine (x,eps)

KC =KC + 1;

eps=0.0001;

sum=0;

i=0;

k=1;

while abs(k)>eps

%Taylor Series of Cosine

k = (((-1).^i)*((x).^(2*i)))/(factorial((2*i)));

i = i + 1;

sum= sum+k;

end

end

end

A phone housing case is to be manufactured from Polyester Based - Thermoplastic Polyurethanes (TPU) with the manufacturing process of Injection Moulding

**Problem** :

a. Describe how TIME is involved in each stage if the injection moulding process

b. How TIME in the injection moulding process influences the internal structure of the material

c. The defects that could likely be introduced due to TIME in the injection moulding process

d. The mechanical property issues that could be caused if TIME is not correctly controlled during the injection moulding process.

A phone housing case is to be manufactured from Polyester Based - Thermoplastic Polyurethanes (TPU) with the manufacturing process of Injection Moulding

**Problem** :

a. Describe how PRESSURE is involved in each stage of the injection moulding process

b. How PRESSURE in the injection moulding process influences the internal structure of the material

c. The defects that could likely be introduced due to PRESSURE in the injection moulding process

d. The mechanical property issues that could be caused if PRESSURE is not correctly controlled during the injection moulding process.

A phone housing case is to be manufactured from Polyester Based - Thermoplastic Polyurethanes (TPU) with the manufacturing process of Injection Moulding

**Problem** :

a. Describe how temperature is involved in each stage of the injection moulding process

b. How temperature in the injection moulding process influences the internal structure of the material

c. The defects that could likely be introduced due to temperature in the injection moulding process

d. The mechanical property issues that could be caused if temperature is not correctly controlled during the injection moulding process.

Within a large catering organization many slices of bread must be buttered. This is a tedious and time consuming task. You are required to design an automatic process of applying the butter to the bread.

i. For the Design Specification, list the five most important requirements of this product in rank order.

ii. Generate five concept designs that meet the Design Specification requirements in (i). Produce simple sketches of each of your concepts and label the key features. (Note! Your sketch and labeling alone must communicate your concept ideas).

iii. Using the requirements in (i) and the concepts in (ii), rank each design and briefly comment on the suitability of the selected design.

A cylinder 100 mm in diameter and 80 mm long with an initial temperature of 527 C is suddenly exposed to water at 27 C giving a convective heat transfer coefficient of 400 W/m2-K. Determine the temperature at the center of the cylinder after 10 minutes. Assume density is 8050 kg/m3, specific heat is 536 kJ/kg-K, and thermal conductivity is 18.6 W/m-K.

**** Not lumped Capacitance Problem. ****

You have been chosen to be the one of few to go to Mars. On Mars you have a standard 55 gal water drum (height = 35 in, diameter = 23 in) filled with water. You are unlucky that the pump is broken to get the water out. But you are an a NASA astronaut, you find a spike (length = 6.5 in to the point, width = 0.5 in and 0.5 in) and a hammer. You need the water to humidify the pressurized living area. After you find a spike, you are unlucky because your fellow astronaut has been effected by the space travel and the low gravity and is now not functioning right. He has now put holes in the drum without thinking. You have been wondering this whole mission on how your partner made it though training and now you wish they were back on earth. Gravity on Mars is 3.711 m/s2?.

(Part A) Use the Bernoulli Equation to solve for the volumetric flow rate at time t=0 sec, if your partner has put the hole 3 inches from the top.

(Part B) Now do part A with Balance Equations (e.g., mass, linear momentum, angular momentum and energy) and solve for the volumetric flow rate at time t=0 s. Do not set any velocity to zero. Is setting velocity to zero a good assumption?

(Part C) Computational Section: Before you could stop your partner, 3 more holes with the spike (total of 4) have gone down the drum. The first hole is 3 in from the top, second hole is 5 in from the first hole, the third hole is 5 in from the second hole and the last hole is 2 in from the third hole. Viscous effects are negligible. Please attach (1) a graph of water height in the drum versus time and (2) a graph the fluid velocity versus time. (3) Note the time when it stops draining for each hole.

(Part D) Computational Section: Now do part C with the bottom 3 holes created every second. Please attach (1) a graph of water height versus time and (2) a graph the velocity versus time. (3) If you made it back at t=3 sec with a bucket, how much water can you save? (4) Note the time it stops draining for each hole.

Derived the time response of first order system with the ramp input using Laplace transform.

Can you provide an application example to illustrate the importance of prototyping a part with different colors?