Questions
 
  There are a series of machines in a manufacturing line to complete a required manufacture process, see Table 1. The manufacture line is controlled by the Control Centre.
Table 1 Machines in a manufacturing line
 
Machine & Process Control
Number of machines in the line
Minimum No. required
Distribution of time to failure (in hours)
 
 
Cutting machines  3                             2                      Weibull (b = 2.15,  q = 20990)
Drilling machines  4                             3                      Weibull (b = 2.38, q = 17760)
Milling machines   2                             2                      Lognormal (s = 0.40, t med
= 17600)
 
Multi-axis Machining
Centre                    2                            2
Normal (m = 10958, s = 1250)
 
Polishing machines                              4                      3    Lognormal (s = 0.55, t med
= 19260)
Painting machines 5                             4                      Weibull (b = 2.0, q = 31500)
Control Centre      1                             1                      Exponential with l =
                                                                                      0.000015                 
 
Note: b is shape parameter and q is scale parameter of Weibull distribution; s is shape parameter and t med is location parameter of Lognormal distribution (see, page 81); m is mean and s is standard deviation of Normal distribution.
 
Assume all machines on the manufacturing line keep operation status unless one fails. Answer the following questions: (total 23 marks)
 
1)       Construct the reliability block diagram to calculate the probability (reliability) that the manufacturing line can fulfil the required process without failure in a periodical maintenance interval of 6 months?    (8 marks)
2)       What is the time at which a periodical maintenance is carried out when the probability of the manufacturing line to fulfil the required process without causing the process failure is at 85%? (7 marks)
3)       If the probability (reliability) that the manufacturing line can perform well to fulfil the required process without failure in 6 months is required to be 87.5%, what measure should be taken? (8 marks)
 
  Compare three alternative designs by completing the following table where time is measured in days:
(15 marks)
 
 
Alternative              Distribution                   Rsystem(2days)   MTTFsystem (in days)
 
Load sharing system with two different units
Standby system with 3 identical units and no failure in standby; at least 2 units are working, the system works
A 2-out-of-3 system having identical units
Exponential with l1 =0.30,
l2 = 0.40,  l1+= 0.55,  and
l2+ = 0.65
 
 
Exponential with l = 0.75
 
 
Lognormal (s = 0.30, t med = 3.5)
 
 
 
Note: The distribution refers to time to failure distribution of each unit.
  The pilots of Green Airlines which flies the Boeing 797 exclusively are known for their “rough†landings. When the force of the landing exceeds the strength of a wheel strut, a fracture (failure) will occur. The strength of wheel strut is affected by number of landings, n, and described as 650exp(- 0.00132n) psi. Measurements on the force of each landing have determined that the distribution is Weibull with a shape parameter of 1.85 and a scale parameter of 209 psi. Each aircraft averages 3 landings per day.
 
Answer the following questions: (total 16 marks)
 
1)       Determine the time (in days) to initial inspection of the landing gear struts to insure no more than a 0.5%  chance of  a strut  fracture (failure).  Any fractured struts are then  replaced and the inspection interval starts over.  (8 marks)
2)       If no fracture is found, the struts are inspected again after 60 days. What is the probability of detecting a fracture at the next inspection?   (8 marks)
  Given the following fault tree:
 
 
 
OR
 
AND                            OR                             OR
 
OR                              OR
AND
 
AND                            OR
 
 
Answer the following questions (total 24 marks)
 
1)       Express the system failure in terms of the basic events using Boolean logic. (6 marks)
2)       Find the minimum cut sets. From this analysis, what are the top four basic events that should be the focus of the reliability design effort?  (6 marks)
3)       If the probability of each basic event is 0.03, estimate the probability of the system failure. (6 marks)
4)       If the probability of the system failure is required to be reduced 50 percent based on the result obtained in 3), consider using redundancy of basic events for achieving the design target. It is required to keep the total number of basic events minimum in all possible solutions. Then, modify the fault tree diagram accordingly to represent your design.  (6 marks)
 
  A consumer decides to perform an economic analysis to compare two different automobiles intended for use over the next 10 years. The first auto named Auto_1 averages 23 km per gallon and costs
$25,000. Consumer Reports says that the time between failures is gamma with a shape parameter of
2.58 and a scale parameter of 5000 km with an average repair cost of $508. Routine servicing is required every 6000 km at a cost of $130. Trade-in value after 10 years is estimated to be $11,000. The second auto named Auto_2 averages 21 km per gallon and costs $23,000. It has a time between failure distribution that Consumer Reports says is minimum extreme value with a scale parameter of 805 and a location parameter of 9350 km. Average repair cost as advertised is $400. Routine
 
servicing is required every 6500 km at a cost of $145. Trade-in value after 10 years is estimated to be
$9500. The consumer averages 18,000 km per year and has an available investment rate of return 4.5 percent. Inflation is expected to average 3.25% in every year over the next decade.
 
Questions  (total 22 marks)
1)       Given the cost of gasoline will be $3.0 per gallon in the first year and it will be increased year by year based on the inflation rate, which automobile should be purchased based only on the economic data provided? Give a short analysis report.  (11 marks)
2)       How would the life cycle costs compare if the cost of gasoline averages 3.50 (inflation has been considered) a gallon and the automobile is driven 16,000 km/year?  (11 marks)

Paper , Order, or Assignment RequirementsYour instructor will assign a play for the class to read and will post the information as a Week 3 Announcement (i.e., The Glass Menagerie, A Doll’s House, or Trifles).DirectionsSelect one of the topics from the list below. Use the questions to develop a short essay of at least three paragraphs and 500 words. In your response, be sure that you have the following: an introductory paragraph with a clear thesis, at least one body paragraph with supporting reasons, examples, and quotations from the play, and a concluding paragraph. Use APA style for formatting the paper and for in-text citations and end references.Topics(Choose either Character, Symbol, or Theme)1. Select one character from the play. What does he or she want? What is the conflict this character encounters? How does he or she attempt to get this desire? What prevents him or her from achieving it? What is the resolution by the end of the play for this character?2. Select one symbol from the play. What is the meaning or significance of the symbol? How is it used to further the story? How does it help the audience to better understand the characters or message of the play?3. Select one theme from the play. How would you describe the message that is conveyed? How is the theme expressed in the play? Give examples. How does the theme giving meaning to the drama for the audience?Reminders• Use APA style, and include a title page, running header, proper font and spacing, in-text citations, and a separate references page.• Do not use any outside sources to complete this response; rely on your own insights.• Quoted material from the play should not exceed 25% of the essay.• You may exceed the minimum word and paragraph count.

Why should contractors and owners want to enter a partnering arrangement with each other?
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Option A: Written Summary
Write a 700- to 1,050-word summary that addresses the following topics:
Option A: Written Summary
Write a 700- to 1,050-word summary that addresses the following topics:
· Describe the difference between the academic study of religion, and devotional practice and advocacy.
· What is the definition of religion?
· What are common questions, concerns, practices, and experiences across various world religions? Include indigenous religions in your discussion.
· What are some critical issues to the academic study of religion?
· Where do religious ethics come from, and what role do they play in the practice of religion?
Format your paper consistent with course-level APA guidelines.
Submit your assignment to the Assignment Files tab.· What is the definition of religion?
· What are common questions, concerns, practices, and experiences across various world religions? Include indigenous religions in your discussion.
· What are some critical issues to the academic study of religion?
· Where do religious ethics come from, and what role do they play in the practice of religion?
Format your paper consistent with course-level APA guidelines.
Submit your assignment to the Assignment Files tab.

Assignment: Application:Using the Data/Information/Knowledge/Wisdom ContinuumHave you ever gone online to search for a journal article on a specific topic? It is amazing to see the large number of journals that are available in the health care field. When you view the library in its entirety, you are viewing untapped data. Until you actually research for your particular topic, there is little structure. Once you have narrowed it down, you have information and once you apply the information, you have knowledge. Eventually, after thoughtful research and diligent practice, you reach the level of wisdom—knowledge applied in meaningful ways.
Are there areas in your practice that you believe should be more fully explored? The central aims of nursing informatics are to manage and communicate data, information, knowledge, and wisdom. This continuum represents the overarching structure of nursing informatics. In this Assignment, you develop a research question relevant to your practice area and relate how you would work through the progression from data to information, knowledge, and wisdom.
To prepare:
Review the information in Figure 6–2 in Nursing Informatics and the Foundation of Knowledge.Develop a clinical question related to your area of practice that you would like to explore.Consider what you currently know about this topic. What additional information would you need to answer the question?Using the continuum of data, information, knowledge, and wisdom, determine how you would go about researching your question.Explore the available databases in the Walden Library. Identify which of these databases you would use to find the information or data you need.Once you have identified useful databases, how would you go about finding the most relevant articles and information?Consider how you would extract the relevant information from the articles.How would you take the information and organize it in a way that was useful? How could you take the step from simply having useful knowledge to gaining wisdom?By Day 7 of Week 4Write a 3- to 4-page paper that addresses the following:
Summarize the question you developed, and then relate how you would work through the four steps of the data, information, knowledge, wisdom continuum. Be specific.Identify the databases and search words you would use.Relate how you would take the information gleaned and turn it into useable knowledge.Can informatics be used to gain wisdom? Describe how you would progress from simply having useful knowledge to the wisdom to make decisions about the information you have found during your database search.Your paper must also include a title page, an introduction, a summary, and a reference page.
attachmentusw1_nurs_5051_applicationassignmentrubric_4.docx