A load ZL = 80− j100 is located at z = 0 on a lossless 50-
line.
The operating frequency is 200 MHz and the wavelength on the line
is 2 m.
(a) If the line is 0.8 m in length, use the Smith chart to find the
input impedance.
(b) What is s? (c) What is the distance from the load to the
nearest voltage
maximum? (d) What is the distance from the input to the nearest
point at which
the remainder of the line could be replaced by a pure
resistance?
In: Computer Science
Jachuck et al. (1982) report on an analysis of a certain drug designed to reduce hypertension (high blood pressure). Such hypotensive drugs are frequently effective but are also linked to side effects like irritability, a decline in energy, and a loss of sexual interest. Seventy-five patients with mild hypertension were put on hypotensive drugs and their progress was monitored by doctors and relatives (typically spouses). Suppose that everyone agrees that the quality weight for hypertension is q = 0.8. That is, one year spent with mild hypertension is equivalent to 0.8 years of full health.
a. When asked to rate the treated patients as improved, worse, or unchanged, the doctors rated all 75 as “improved.” Meanwhile, the spouses rated 74 of the 75 patients “worse.” Why might spouses and doctors differ in their opinion about the effect of going on hypotensive therapy.
b. Explain why the drugs might be a dominated treatment and indicate what other treatment(s) might dominate it. c. Make a one-sentence argument for each of two viewpoints: • Doctors’ opinions should be used to determine how beneficial hypotensive drugs are for the purposes of CEA. • Spouses’ opinions should be used to determine how beneficial hypotensive drugs are for the purposes of CEA.
In: Economics
|
Ratio |
2017 |
2016 |
Industry Average |
|
Current Ratio |
1.8 |
1.9 |
2.2 |
|
Quick Ratio |
0.5 |
0.4 |
0.3 |
|
Inventory Turnover |
4.9 |
4.8 |
4.3 times |
|
Days Sales Outstanding |
7.4 |
6.3 |
5.1 days |
|
Fixed Asset Turnover |
83.4 |
86.5 |
51.6 |
|
Total Asset Turnover |
1.4 |
1.4 |
3.8 |
|
Debt Ratio (Debt/Assets) |
83.77% |
79.59% |
29.45% |
|
Times Interest Earned |
2.8 |
3.2 |
15 |
|
Net Profit Margin |
2.98% |
3.50% |
1.52% |
|
Return on Assets |
4.10% |
4.95% |
4.00% |
|
Equity Multiplier |
2.6 |
2.5 |
0.9 |
|
DuPont Equation (ROE) |
139 |
168.25 |
5.20% |
Complete both a trend and comparative analysis for Kohls. Comment on their liquidity position, asset utilization, debt management, and profitability over time and vs. competitors. Is Kohls in a stronger or weaker financial position than its average competitor? Why?
In: Accounting
|
Years |
2007 |
2008 |
2009 |
2010 |
2011 |
2012 |
2013 |
2014 |
2015 |
2016 |
2017 |
|
Retail Sales |
5.2% |
0.3% |
-3.3% |
3.0% |
4.9% |
3.9% |
3.1% |
4.2% |
3.8% |
3.9% |
3.6% |
|
e-commerce Sales |
19% |
4.1% |
2.8% |
17.1% |
17.5% |
14.9% |
13.0% |
14.6% |
14.7% |
14.0% |
16.0% |
Does Retail Stores Growth Reduced by E-commerce Growth?
Null Hypothesis: Ho: Retail stores growth doesn’t reduce by E-commerce growth.
Alternative Hypothesis: Ha: Retail stores growth does reduce by E-commerce growth
Do the chi-square test for goodness of fit. with the level of significance is 0.05
In: Statistics and Probability
| Distance (m) | 0.3 | 0.6 | 0.9 | 1.2 | 1.5 |
| Time (s) | 3.27 | 7.34 | 11.66 | 16.46 | 21.29 |
Now you will need to use your data to calculate velocities and accelerations. Recall that we have discussed average velocity as vavg = Δx/Δt as well as vavg = (vi + vf)/2. We also discussed average acceleration as aavg = Δv/Δt. Using these equations, calculate the instantaneous velocity of your cart at each distance/time data point and the average acceleration between each pair of distance/time data points. When you have completed your calculations, organize your results into a table with four columns: time, position, velocity, and average acceleration.
In: Physics
In: Economics
In: Accounting
how do i use a sinewave with 5V peak to peak at 10kHz from a function generator to observe it's spectrum on the analyzer. do I have to build a circuit to make a sinewave or can i just use the oscilloscope and function generator without a circuit being built? if so which kind of circuit can I build to make a sinewave with 5V peak to peak.
In: Electrical Engineering
Write a Java program to implement a Single Linked List that will take inputs from a user as Student Names.
First, add Brian and Larry to the newly created linked list and print the output
Add "Kathy" to index 1 of the linked list and print output
Now add "Chris" to the start of the list and "Briana" to the end of the list using built-in Java functions.
Print the output of the linked list.
In: Computer Science
Find a dataset online, and get a feel for it by performing some EDA. Produce a single plot which you think captures an interesting aspect of the data, and comment on it. (If you wish to use R, there are many data sets already built in, e.g. to the package ‘MASS’; if you are not using R, datasets are readily available -a simple Google search of ’sample datasets’ yields numerous results, for example.)
In: Statistics and Probability