A triple-effect evaporator is a process that removes pure water from a salt water feed. The process consists of three units connected in series. The feed to the process contains 3.43 wt % NaCl in water. In the first effect, sufficient water is evaporated to concentrate the solution to 3.89 wt % NaCl. The second effect concentrates the solution further to 4.22 wt %, and the brine discharged from the process contains 5.02 wt % NaCl. a. Draw a diagram of the process, then do a degrees of freedom analysis on each effect and on the entire process to determine which of these choices of system are appropriate starting point(s) for the calculation. b. Determine the total mass of pure water provided by the process per 100 kg of feed. c. Solve for the flow rates of all streams based on 100 kg feed.

Suppose a country removes an import tariff. Answer the following questions and show them in one nice big diagram.

a. What is the effect on imports, exports, and net exports? Explain the reasoning with reference to your diagram.

b. What is the effect on net foreign investment and the exchange rate? Explain the reasoning with reference to your diagram.

c. What is YOUR opinion on tariffs and other restrictions to free trade? Carefully discuss.

Suppose a country removes an import tariff. Answer the following questions and show them in one nice big diagram.

a. What is the effect on imports, exports, and net exports? Explain the reasoning with reference to your diagram.

b. What is the effect on net foreign investment and the exchange rate? Explain the reasoning with reference to your diagram.

c. What is YOUR opinion on tariffs and other restrictions to free trade? Carefully discuss.

The nurse removes a patient’s transdermal nitroglycerin disc at bedtime as ordered to minimize nitrate tolerance. The patient awakens during the night and complains of anginal symptoms. The nurse’s first action is to:

Select one:

A.Notify the health care provider.

B.Apply a new transdermal disc.

C.Obtain further history of complaints.

D.Administer a short-acting nitrate as ordered.

The nurse explains to the patient being discharged who is taking sucralfate that the medication should be administered:

Select one:

A.with meals

B.at the same time as an antacid

C.after meals

D.2 hours before other drugs

Clear my choice

Cefuroxime (Ceftin) is a first generation antibiotic.

Select one:

True

False

Important points to include when teaching measures to promote healthy bowel function include all of the following except:

Select one:

A.Establish regular bowel habits.

B.Increase fluid intake.

C.Increase activity.

D.Eat a low-residue diet.

A patient asks the nurse how sucralfate (Carafate) works. The nurse replies that sucralfate:

Select one:

A.binds to normal and ulcerated mucosa, creating a protective barrier

B.enhances prostaglandin synthesis

C.increases mucus and bicarbonate secretion

D.inhibits gastric acid secretion

In java P4.7 Following Section 4.9, develop a program that reads a string and removes all duplicates. For example, if the input is Mississippi, print Misp. Start small and just print the first letter. Then print the first letter and true if the letter is not duplicated elsewhere, false otherwise. (Look for it in the remaining string, by using the substring and indexOf method). Next, do the same for the first two letters, and print out for each letter whether or not they occur in the substring before and after the letter. Try with a string like oops. Extend to all characters in the string. Have a look at the output when the input is Mississippi. Which character should you not report? At this time, you should have gathered enough experience that you can complete the program.

CH8 HW2

Case Study:

Management discovers that a supervisor at one of their restaurant locations removes excess cash and resets sales totals throughout the day on the point of sale (POS) system. At closing the supervisor deposits cash equal to the recorded sales on the POS system and keeps the rest.

The supervisor forwards the close-of-day POS reports from the POS system along with a copy of the bank deposit slip to the company’s revenue accounting department. The revenue accounting department records the sales and the cash for the location in the general ledger and verifies the deposit slip to the bank statement. Any differences between sales and deposits are recorded in an over/short account and, if necessary, followed up with the location supervisor. The customer food order checks are serially numbered, and it is the supervisor’s responsibility to see that they are accounted for at the end of each day. Customer checks and the transaction journal tapes from the POS system are kept by the supervisor for one week at the location and then destroyed.

Questions:

1. What control procedures in the above case allowed the fraud to occur?
2. What audit procedures would have detected the fraud?

P4.7 Following Section 4.9, develop a program that reads a string and removes all duplicates. For example, if the input is Mississippi, print Misp. Start small and just print the first letter. Then print the first letter and true if the letter is not duplicated elsewhere, false otherwise. (Look for it in the remaining string, by using the substring and indexOf method). Next, do the same for the first two letters, and print out for each letter whether or not they occur in the substring before and after the letter. Try with a string like oops. Extend to all characters in the string. Have a look at the output when the input is Mississippi. Which character should you not report? At this time, you should have gathered enough experience that you can complete the program.

Patients with chronic kidney failure may be treated by dialysis, in which a machine removes toxic wastes from the blood, a function normally performed by the kidneys. Kidney failure and dialysis can cause other changes, such as retention of phosphorus, that must be corrected by changes in diet. A study of the nutrition of dialysis patients measured the level of phosphorus in the blood of several patients on six occasions. Here are the data for one patient (in milligrams of phosphorus per deciliter of blood).

The measurements are separated in time and can be considered an SRS of the patient's blood phosphorus level. Assume that this level varies Normally with

σ = 0.8 mg/dl.

(a) Give a 95% confidence interval for the mean blood phosphorus level.

1. Write a function in Python which removes a set of common words from a long piece of text. Be sure to strip out any punctuation. The common words to be removed are:

a, an, as, at, by, for, in, is, it, of, that, this, to, was, will, the

These are typical words that are considered to have low semantic value.

Process each paragraph provided below individually. Your end result for each paragraph should be a string or list containing the processed paragraph with the common words and punctuation removed. It is not required to put the text samples into a file (you can simply copy and paste into a string variable inside your Python script).

For the text samples to process, use the following (taken from the official Python tutorial):

If you do much work on computers, eventually you find that there’s some task you’d like to automate. For example, you may wish to perform a search-and-replace over a large number of text files, or rename and rearrange a bunch of photo files in a complicated way. Perhaps you’d like to write a small custom database, or a specialized GUI application, or a simple game.

If you’re a professional software developer, you may have to work with several C/C++/Java libraries but find the usual write/compile/test/re-compile cycle is too slow. Perhaps you’re writing a test suite for such a library and find writing the testing code a tedious task. Or maybe you’ve written a program that could use an extension language, and you don’t want to design and implement a whole new language for your application.