Think about industry‐disrupting companies such as Uber (disrupting the taxi industry) and Airbnb (disrupting the hotel industry). Research them if you don’t know much about them. What are the legal and ethical issues facing them? In what ways are they being responsible, irresponsible? How would you evaluate their corporate social responsibility?
In: Operations Management
You’ve been monitoring Bletchley Park Corporation and have calculated the following information. The company has a debt to asset ratio of 57.45%, market beta of 1.26, unlevered beta of .82 (at a 40% marginal tax rate), and a cost of equity of 13.67%. The risk free rate is 1.8%. The risk premium due to financial risk is closest to?
In: Finance
As the project manager for a not-for-profit organization, you were notified that your proposal to improve the safety of the Lafayette Park in Los Angeles was approved. You and your team will receive funding for $50,000. Please prepare a positive letter informing your team members and outline the safety improvements you propose to be implemented.
Prepare this into a Positive Letter.
In: Operations Management
For each of the following types of businesses, name the processes that correspond to the traditional manufacturing functions of product design, process design, production scheduling, and production control. (processes involved in the following types of business)
a. Personal computer software developer (for example, Microsoft).
b. New car dealership
c. College or university.
d. Amusement park.
In: Operations Management
The design should consist of two things:
(1) a list of every semaphore, its purpose, and its initial value,
and
(2) pseudocode for each function. The pseudocode should be similar
to the pseudocode shown in the textbook for the barbershop
problem.
Every wait and signal call must be included in the pseudocode.
Must use Java Threads and Java Semaphores
(java.util.concurrent.Semaphore).
You may not use the “synchronized” keyword in Java for mutual
exclusion.
You may not use Java data structures that have built-in mutual
exclusion.
Please provide corresponding PSEUDOCODE along with JAVA CODE.
Hotel Simulation
A hotel is simulated by using threads and semaphores to model
customer and employee behavior.
This project is similar to the “barbershop” example in the
textbook. The following rules apply:
The hotel to be simulated has two employees at the front desk to
register guests and two bellhops to handle guests’ bags.
A guest will first visit the front desk to get a room number. The
front desk employee will find an available room and assign it to
the guest.
If the guest has less than 3 bags, the guest proceeds directly to
the room. Otherwise, the guest visits the bellhop to drop off the
bags.
The guest will later meet the bellhop in the room to get the bags,
at which time a tip is given.
Threads:
Guest:
1) 25 guests visit the hotel (1 thread per guest
created at start of simulation).
2) Each guest has a random number of bags (0-5).
3) A guest must check in to the hotel at the front
desk.
4) Upon check in, a guest gets a room number from the
front desk employee.
5) A guest with more than 2 bags requires a
bellhop.
6) The guest enters the assigned room.
7) Receives bags from bellhop and gives tip (if more
than 2 bags).
8) Retires for the evening.
Front Desk:
1) Two employees at the front desk (1 thread
each).
2) Checks in a guest, finds available room, and gives
room number to guest.
Bellhop:
1) Two bellhops (1 thread each).
2) Gets bags from guest.
3) The same bellhop that took the bags delivers the
bags to the guest after the guest is in the room.
4) Accepts tip from guest.
Other rules:
1) All mutual exclusion and coordination must be
achieved with semaphores.
2) A thread may not use sleeping as a means of
coordination.
3) Busy waiting (polling) is not allowed.
4) Mutual exclusion should be kept to a minimum to
allow the most concurrency.
5) Each thread should print when it is created, and
main should print when it joins the customer threads.
6) Each thread should only print its own activities.
The guest threads print guest actions and the employee threads
print their own actions.
7) Your output must include the same information, same
wording, and the same set of steps as the sample output. Of course,
each run can be different depending on the order of thread
execution and the random assignments made.
Output
1) Each step of each task of each thread should be
printed to the screen with identifying numbers so it is clear which
threads are involved.
2) Thread output sample for 3 guests. The wording in
your output should exactly match the sample.
Simulation starts
Front desk employee 0 created
Front desk employee 1 created
Bellhop 0 created
Bellhop 1 created
Guest 0 created
Guest 1 created
Guest 2 created
Guest 0 enters hotel with 1 bag
Guest 1 enters hotel with 4 bags
Guest 2 enters hotel with 3 bags
Front desk employee 0 registers guest 0 and assigns room 1
Front desk employee 1 registers guest 1 and assigns room 2
Guest 0 receives room key for room 1 from front desk employee
0
Guest 1 receives room key for room 2 from front desk employee
1
Front desk employee 0 registers guest 2 and assigns room 3
Guest 0 enters room 1
Guest 2 receives room key for room 3 from front desk employee
0
Guest 1 requests help with bags
Guest 0 retires for the evening
Guest 0 joined
Guest 2 requests help with bags
Bellhop 1 receives bags from guest 2
Bellhop 0 receives bags from guest 1
Guest 1 enters room 2
Guest 2 enters room 3
Bellhop 0 delivers bags to guest 1
Bellhop 1 delivers bags to guest 2
Guest 1 receives bags from bellhop 0 and gives tip
Guest 2 receives bags from bellhop 1 and gives tip
Guest 2 retires for the evening
Guest 1 retires for the evening
Guest 1 joined
Guest 2 joined
Simulation ends
In: Computer Science
The financial pathway to green manifests itself as a dichotomous and mutually-exclusive choice between a hybrid car which entails fossil fuel directly and an all-electric car which doesn’t. This exercise frames the decision-making process into a typical mutually-exclusive capital budgeting analysis. We choose Toyota Prius as the hybrid and the Nissan Leaf as the all-electric car.
In August 2015, a Toyota Prius lists at $26,985 as its manufacturer suggested retail price. The corresponding retail price for the Nissan Leaf lists at $29,010.
The Prius has a city-highway combined efficiency of 50 miles per gallon. For the base-case analysis, let’s assume a gas price at $3.00 per gallon. This will result in a mileage efficiency of 6 ¢/mile.
The Leaf has an efficiency of 5.4 miles/kWh.[1] For base-case analysis, let’s assume electricity supply at a price of 12 ¢/kWh. This will result in a mileage efficiency of 2.2222 ¢/mile.[2]
For simplicity of analysis, let’s assume the a driver who needs to drive 12,000 miles a year or 1,000 miles a month for work, school, and other transportation needs. Let’s further assume the driver faces an auto loan’s interest rate of 3% per year or .25% per month.
To do: We first perform a base-case analysis using the data provided or assumed so far.
Q1: Calculate the monthly cash flows for purchasing and operating the Prius for 10 years. (10%)
Q2: Calculate the monthly cash flows for purchasing and operating the Leaf for 10 years. (10%)
Q3: From the monthly cash flows in the previous two questions, derive the incremental cash flows of purchasing the more expensive Leaf over the less-expensive Prius for 10 years. (10%)
Q4: From the incremental cash flows established in Q3 above, find the following capital-budgeting measures.
i. undiscounted payback in years; (5%)
ii. discounted payback in years; (5%)
iii. net present value, NPV, in $; (10%)
iv. internal rate of return, IRR, in % (10%)
v. profitability index (practitioner’s version) (10%)
vi. modified internal rate of return, MIRR, in %. Use reinvestment rate of 1% per annum or .08333% per month. (10%)
[1] We obtain the 5.4 miles per kWh statistic from http://insideevs.com/long-term-nissan-leaf-mileageusage-review-once-around-the-sun/.
[2] The 2.2222 cents per mile number is consistent with Sharon Terlep’s article in The Wall Street Journal, August 12, 2009, where she reported the Chevrolet Volt’s lithium-ion battery pack can deliver a range of 40 miles before it needs recharging at 88 cents per charge. The Leaf has a range of 84 miles per full charge. We did not choose the Volt because the Volt is not an all-electric car with its fossil-fuel internal combustion engine backup propulsion.
In: Finance
The intensity of an earthquake wave passing through the Earth is measured to be 2.5×106 J/(m2⋅s) at a distance of 47 km from the source.
What was its intensity when it passed a point only 1.0 kmkm from the source?
Express your answer to two significant figures and include the appropriate units.
At what rate did energy pass through an area of 4.0 m2m2 at 1.0 kmkm ?
Express your answer to two significant figures and include the appropriate units.
In: Physics
In which direction will the net reaction proceed.
X(g) + Y(g) <==> Z(g) .. Kp = 1.00 at 300k
for each of these sets of initial conditions?
1) [X] = [Y] = [Z] = 1.0 M
a] net reaction goes to the left [this one?]
b] net reaction goes to the right
c] reaction is at equilibrium
2. Px = Pz = 1.0 atm, Py = 0.50 atm
a] net reaction goes to the left
b] net reaction goes to the right
c] reaction is at equilibrium
In: Chemistry
1. What quantity (moles) of NaOH must be added to 1.0 L of 2.1 M HC2H3O2 to produce a solution buffered at pH = 4.00? Ka = 1.8×10-5 mol
2. What quantity (moles) of NaOH must be added to 1.0 L of 2.1 M HC2H3O2 to produce a solution buffered at pH = 5.00? Ka = 1.8×10-5 mol
I really need help! Please show every step of the math no matter how small! Thank you
In: Chemistry
A.) Initially, 1.0 mol of H2 and 2.0 mol of I2 are placed into a 10.0 L reaction flask. When equilibrium was established, the [HI] was 0.080 mol/L. Find the equilibrium concentrations of H2 and I2 and evaluate Kc for the following reaction:
H2 (g)+ I2 (g) <--> 2HI (g)
B.) The equilibrium constant for the reaction above is 45.0 at 490 C. What is the equilibrium concentration of each species if 1.0 mol of HI were put in a 2.0 L flask at 490 C?
In: Chemistry