Engineering

Customer Interview Reports Customer Interview 1Project Description For this interview, we discussed the practicality and market need for a tool to aid in the remotediagnosis of strokes via telemedicine. The tool is a wearable device worn on the face that allowsa specialist to remotely assess the visual fields of a patient.Interviewee: Mary Britton | Stroke Coordinator, Promedica Health SystemInterview Summary Mary Britton, the stroke coordinator for the regional NW Ohio area, was chosen for thisinterview due to her extensive knowledge on the topic of strokes and her familiarity with theneed for a swift diagnosis. She also has experience with a wide variety of stroke and post-strokecare techniques. Her experience and perspective will be helpful to us for finding a niche for theproduct within the diagnosis, analysis, and recovery process of stroke patients.After explaining the utility of the device to Mary, she offered her opinions on how thedevice could be implemented within the stroke diagnosis process. She stated that the use oftelemedicine for the diagnosis of strokes is growing tremendously. Currently, EMT’s in the fieldare using iPads to connect with specialists from the ambulance. They are able to communicatewith the neurologist and ask questions as well as take instructions to help diagnose the patient onthe way to the hospital. There is even a mobile stroke unit that includes specially-trained EMT’sand an ambulance with a working CT scanner inside. These tools have improved the time todiagnosis and time to treatment for severe or “acute” stroke cases. In general, if the EMS thinkthe patient is experiencing a stroke, preparations are made at the hospital while the patient is intransport to allow them to be diagnosed and treated as quickly as possible. This includesprepping the CT scanner and IV access for the incoming patient. In almost all cases that an EMTsuspects a stroke, the patient undergoes a CT scan. The CT scan is a much more reliable test thathelps doctors determine if the stroke is Ischemic or Hemorrhagic. Ischemic means there is ablockage in the brain, hemorrhagic means there is bleeding in the brain. After the CT Scanconcludes that the stroke is not Hemorrhagic, and the patient’s last known normal was less than 4hours before diagnosis, the patient is given TPA, a clot-busting injection. This breaks up the clotthat is causing the Ischemic Stroke. This distinction is important as TPA could be life threateningto a hemorrhagic stroke victim.There is a standard field diagnosis technique, called the National Institute of Health(NIH) Stroke Scale, EMT’s use this technique to preliminarily diagnose the severity of the strokein the patient. This stroke assessment works well enough for severe strokes and yields a strongconfidence that a stroke is occurring. Mary indicated that since this test reliably indicates a strokeis occurring, the Telestroke Goggles would not improve this process. She did explain to us that amore feasible and useful application for the Telestroke Goggles: the case of the minor stroke.Often times, if a patient is not exhibiting the symptoms of a severe stroke, they are notimmediately transported to Toledo hospital and are monitored for 23 hours in the rural clinic.Since it is not as easy to detect if the patient is having a minor stroke, the tool can be useful toget a more accurate depiction of the visual field loss of the patient. At these clinics there are nospecialists available so the telemedicine aspect of the device will allow nurses to apply thedevice and a specialist can carry out the test remotely. Mary also said the device could be usedpost-treatment to determine if the visual field loss has improved in patients. The minor strokecase can often be confused for post-migraine, post-seizure, or encephalopathic symptoms.Patients can even misleadingly exhibit stroke-like symptoms if they have a psychologicacondition called conversion disorder. Having this device at the fingertips of these clinics willallow the minor stroke cases to be easily sorted out from the false positives.Conclusion Overall, Mary’s comments helped us realign our market focus towards the minor strokecase. She did not have any improvement comments on the device itself. She believed theprinciple diagnosis method of the device to be correct and that the device would serve a marketneed in a rural clinical setting.

1. Find the following parts and provide the part numbers. (9 pts) a) Fastener, slightly corrosive environment, strength required =100 Ksi, pitch = 2mm, diameter =14 mm, length = 60mm, thread length = 34mm, hex head (mcmaster.com) b) Rack and pinion, high load, pressure angle = 20°, face width = 1.5”, pitch diameter = 3.5”, length= 2’ (mcmaster.com) AC to AC transformer, 120V input, 3A max current (mcmastercar.com)2. Answer the following regarding the uncertainty in FEA reading. (5 pts) a) What is the minimum number of element through the thickness of a curved component usingquadratic elements? b) Between stainless steel and cast iron, which material properties are generally more repeatable? c) What is the greatest source of FEA uncertainty that you can control? d) Why are boundary conditions like pins and rollers used? Is a basic SW FEA solution valid if your component experiences large displacements?3. Create a static analysis for the shelf bracket model and perform a mesh refinement study. Use Nylon 6/10 for the material, 50 lb for the force on the front area, and global size controls for the mesh. Produce a plot of number of nodes vs Factor of Safety and use at least 5 points. What is the FoS convergence value and number of nodes required? (10 pts)4. Once your mesh refinement study has been completed, perform a material selection study by comparing the minimum factors of safety and component weight for at least 5 materials. Produce a plot with materials labeled. (5pts)5. Use the slot subroutine to complete the following list of slots. Submit a CAMotics project. (5 pts)Xc Yc Length Width Depth1 0 0 50 3.5 20 2 -20 100 75 10 21.25 3 20 -100 20 20 10 4 -20 -100 37.5 3.5 20 5 20 100 50 5 256. Modify the subroutine to accommodate slots in any orientation. Create a CAMotics project tosimulate the figure below. The slots should be 21mm deep in a 50mm material. Use a 6mm cylindrical bit with a plunge ratio of 50/500. Submit the CAMotics project and requisite files. (10 pts)

Briefly respond to all the following questions. Make sure to explain and backup your responses with facts and examples. This assignment should be in APA format and have to include at least two references.At the end of your textbook on page 385, the author mentions several “encouraging security architecture developments”:The Open Group has created an Enterprise Security Architect certification. One of their first certified architects has subsequently created a few enterprise security reference architectures.The SANS Institute hosted three “What Works in Security Architecture” Summits.The IEEE initiated a Center for Secure Design. The Center published a “Top 10 Design Flaws” booklet.Adam Shostack published Threat Modeling: Designing for Security, and renown threat modeler, John Steven, has told me that he’s working on his threat modeling book.Anurag Agrawal of MyAppSecurity has been capturing well-known attack surfaces and their technical mitigations within his commercial threat modeling tool, “Threat Modeler.”Choose 2 or 3 three items from the list above and provide an update to their development status. Make sure you provide some background on your selection and then provide the update of the develoment.

Rapid set and traditional type I/II PCC for highway reconstruction comparison

DescriptionThere are two roles to play in this negotiation 1) the client, Big Corp and 2) the design professional Inland Architects. This homework is for those playing the role of a Big Corp representative. Read the scenario and then study the contract. Do not share you scenario with a student from the other side! You’ll spoil the fun. To prepare for this negotiation, read the following scenario details:You are the director of construction services for Big Corp, Inc., a major US telecom company.The contract you will be negotiating is the standard contract you use for all A&E firms. It’s tough, you know it’s tough and you don’t usually give in to client requests for concessions. However, twice recently you have selected a highly qualified A&E but been unable get them under contract because they would not agree to your terms & conditions. You eventually contracted with other firms who would agree to your terms & conditions but you have not been satisfied with the quality from these firms.You selected Inland Architects based on their strong qualifications. They really blew you away in their technical presentation, and you were impressed with the quality of their staff when you visited their home office. The bottom line is you want to get this firm under contract. You don’t want to appear soft or roll over, but you’ll accept any reasonable modifications, if that’s what it takes to get Inland Architects on contract.Read the contract and identify the areas in which you think Inland Architects will most likely ask for changes. For each area decide what changes would be acceptable and what changes are a no?go and you just won’t be able to accept. Write notes and come prepared!3. Provide your answers to the following questions.What clauses in contracts deal with standard of care? Is the required standard of care greater than the ordinary professional standard of care?What clauses in the contract deal with indemnities? Are they balanced and fair to both parties?What clauses in the contract deal with warranties and guaranties? Are they balanced and fair to both parties?If you were representing Inland Architects, would you sign this contract as written? If not what paragraphs would you object toFor each paragraph you identified in part d) above, explain how much you would give up at the Big Corp representative in order to reach an agreement with Inland ArchitectsSubmissionProvide your written responses to Part 1 (Questions 1 and 2) and Part 2 (Question 3) in a single .pdf or .docx file format.

Description1. For the City of RPV, City of Bellevue, and Excerpts from a Typical Construction Contract:Determine the standard of care (SOC) required by each contract. Identify the section of the contract that defines the SOC. Is this standard of care heightened as compared to the ordinary professional standard of care? Explain your response.2. Identify the section(s) of the Bellevue Youth Center Expansion Professional Services Agreement that deal with the following contract terms and conditions and prepare an explanation on yourunderstanding if this clause as written would be acceptable or unacceptable and why:Scope ChangesContract TerminationLegal ActionPersonnelNegligence/Indemnification

IntroductionHVAC systems typically consume around 70% of a base building’s energy usage, with 25-35% of energy consumed by chillers producing chilled water for air-conditioning. Therefore, the efficiency of chillers and the optimization of their performance within the HVAC systems they operate are important in achieving high performance.Purpose of the AssignmentIn this assignment a one-year historical data (refer to Daily Chilled water-1 excel file attached) for a chiller within a building has been measured. The main aims of this assignment are that students· Taste the flavor of forecasting methods within buildings.· Understand basic concepts of short-term/midterm forecasting.· Learn how to· capture the salient features using different regression models· build regression models using Excel· justify how well the models have fitted the data· develop a model for one day ahead load forecastingQuestionsStudents must answer the following question in details.1. Plot the data and apply the simple linear regression (SLR) model and second order regression (SOR) model for the chilled water and HDD. In both cases, find the mathematical models for producing daily chilled water as well.2. Use the obtained models above to forecast the chilled water that you would expect for the next January (2014) if the HDD varies as shown in Table 1 (attached).3. Apply multiple linear regression (MLR) model for the chilled water and all parameters impacting the amount of chilled water. Find the mathematical model for producing daily chilled water as well.4. Use the obtained MLR model above to forecast the chilled water that you would expect for the next January (2014) if the RH, Tdew-C and HDD vary as shown in Table 1.5. Calculate MAPE and RMSE for each model (SLR, SOR, and MLR) and discuss which model(s) is more fitted with the historical data?

400+ wordsDiscussion Questions: How does cyber-power change either the nature or character of war? Does it change it at all? Can cyber-power be decisive in war? In your post you should consider what the impact of cyber-power in war and how it has the potential to revolutionize certain aspects of war such as intelligence, command and control and destruction of infrastructure. What is the potential of cyber-power and how might it influence the conduct of war.

Questions:Why are contracts important in society? What would happen if we didn’t have contracts?One of the concepts in contract law is that if parties sign a bad contract, it is sometimes more efficient to break it and pay the damages than satisfy it. Do you believe that parties to a contract have a moral obligation to satisfy it?Name the elements of forming a contract, define them, and then apply them in context to a contract you have entered into some time in your life (nothing personal or that you feel uncomfortable sharing—a normal consumer contract is fine).Hypothetical:Grandma Meredith was beloved by her family for many years. Though she had many grandchildren, her particular favorite was a handsome 10-year-old named Michael. One day, when Michael’s family was visiting her toward the end of her life, she asked how Michael was doing in school. The family explained how bright and eager Michael was, and Grandma Meredith called him over and wrote a promissory note stating that Michael would receive $5,000 dollars when he turned 18.

Challenger Safety Article: You are to review the following article about the challenger Shuttle disaster at http://www.spacesafetymagazine.com/space-disasters/challenger-disaster/. You are to reflect on the importance of reviewing details around technical concerns related to this incident and how this could relate to your future career in automotive design and answer the following questions. What overlooked details led to this disaster? What role did engineers play in this incident? What are some actions that engineers could have taken to prevent this tragedy? How does the article directly relate to both of the incidents you were involved in? How does this article relate to your future career of automotive design?