SYSTEM FAILURE CASE STUDIES SEPTEMBER 2009 VOLUME 3 ISSUE 06 A Half-Inch to Failure At 6:05 pm‚ on Wednesday‚ August 1‚ 2007‚ the Interstate-35 West (I-35W) bridge over the Mississippi River in Minneapolis collapsed. On the day of the collapse‚ four of the bridge’s eight lanes were closed for planned construction. Four weak connector plates fractured under the combined burden of rush hour traffic‚ concentrated construction equipment‚ and previous heavy renovations. The bridge fell 108
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Looking around‚ I could see the uneasy and impatient expressions on people’s faces. Suddenly‚ a loud voice interrupted my presentation: “The scenarios sound like scary but implausible fictions. We should stop here!” This stunning moment occurred during a milestone meeting for one of my early projects at Monitor Group. The project was meant to develop a set of plausible scenarios for evaluating the potential impacts of the melting Arctic ice-cap on Singapore’s status as a transshipment hub. As
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Quality Cost 1 Quality is defined from the customer´s point of view l Performance l Performance or the primary operating characteristics of a product or service. Example: For a car‚ it is speed‚ handling‚ and acceleration. For a restaurant‚ it is good food. l Features l Features or the secondary characteristics of a product or service. Example: For a TV‚ it is an automatic tuner. For a restaurant‚ it is linen table cloths and napkins . l Reliability l Reliability
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Learning from Failure “I can accept failure‚ everyone fails at something. But I can’t accept not trying.” This is only one of Michael Jordan’s many famous quotes. One reason I agree with this quote is because he is my all-time favorite NBA player; but the main reason I admire it is because it has inspired me to excel at several different things‚ such as sports‚ hobbies‚ and other interests. Losing a tennis match is one example of failure that I have experienced. I lost at least three or four matches
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Failure In life‚ the journey is not only a tough one‚ but also constantly ‚meeting crossroad where one has to decide which direction to go. Some choose to go on blindly by taking chances‚ some take calculated risk‚ and some stand lost unable to decide. Everyone desire sucess‚ working round the clock; toil in blood‚ sweat and tears; put one’s shoulder to the wheel; on one’s fear for the whole day; and the expressions can go on and on. The trouble is‚ when one’s journey comes
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The definition of failure is “an act or instance of failing or proving unsuccessful; lack of success”. Failure is something people never intend to do but end up doing because they don’t work hard enough for what they desire. When people fail at something they have two options: quit what they’re doing and give up‚ or work even harder so they can reach success. Everyone in life will fail at some point. People cannot let one failure stop them from reaching their goals. When a person fails they should
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Plant overhead $122‚000 D/L rate/hour $30 Youngstown has a traditional cost system. It calculates a plant-wide overhead rate by dividing total overhead costs by total direct labor hours. Assume‚ for the calculations below‚ that plant overhead is a committed (fixed) cost during the year‚ but that direct labor is a variable cost. 1. Calculate the plant-wide overhead rate. Use this rate to assign overhead costs to products and calculate the profitability of the four products. The assignment
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Failures A. Cedillo POS-355 Failures In this paper I will be discussing the issue of failures in a distributed system‚ and to understand the different failures I will write about four failures that occur in and affect a distributed system. Also‚ I will be discussing and writing about how to isolate and fix two out of the four failure that can occur in the distributed system. In a distributed system nothing is set in stone or perfect‚ so there are some issues that can arise‚ and the issues
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CHAPTER 6 PRODUCTION EXERCISES 4. A political campaign manager must decide whether to emphasize television advertisements or letters to potential voters in a reelection campaign. Describe the production function for campaign votes. How might information about this function (such as the shape of the isoquants) help the campaign manager to plan strategy? The output of concern to the campaign manager is the number of votes. The production function has two inputs‚ television advertising and
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Ronald Coase noted‚“The cost of doing anything consists of the receipts that could have been obtained if that particular decision had not been taken.” For example‚ the opportunity set for this Friday night includes the movies‚ a concert‚ staying home and studying‚ staying home and watching television‚ inviting friends over‚ and so forth. The opportunity cost of taking job A included the forgone salary of $102‚000 plus the $5‚000 of intangibles from job B. Opportunity cost is the sacrifice of
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