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Questions related from Sirous Yasseri
We don't know ( better to say I don't know) where Coronavirus is going to show up next. Does anybody know what is the state of art?
07 March 2020 3,097 43 View
The first figure in this figure shows a series system and the second shows a parallel system. How the reliability of an interdependent system can be calculated?
07 December 2019 8,297 2 View
System dynamics (SD) is promoted as tool for understanding the nonlinear behaviour of complex systems as function of time using stocks, flows, internal feedback loops, table functions and time...
06 June 2019 3,500 16 View
A key consideration in the design of a natural gas transmission pipeline is the location class of the pipeline. The location class is a geographic area along the pipeline classified primarily...
05 November 2018 5,700 4 View
What is the allowable stress for cast iron? Codes for pressure vessels express their allowable stress as: ASME Section VIII Division 2 S = smaller of: UTS / 3.5 or Yield / 1.5 Or...
29 October 2018 8,422 1 View
I am looking for both theoretical and experimental investigation on how the grey cast iron product fail, knowing that the grey cast iron behaves differently in tension and compression. In...
18 October 2018 7,728 0 View
Many big cities established their water supply and sewer systems very early during the last century. Many of the penstocks and pressure conduits are over 50 years old. Corrosion and erosion have...
11 September 2018 7,302 2 View
With an ordinal scale, we know the rank order, but we do not have any idea of the distance or interval between the rankings. For example grades such as “A,” “B,” “C,” “D,” and “F” are ordinal...
13 April 2018 8,814 12 View
In some regions of the world the government controls everything by trying to force on people how to think, what to wear, how to look, what to say, how to behave, whom to support etc. etc. As...
21 February 2018 9,196 8 View
High reliability and availability are necessary and desirable attributes of the modern system which must operate close to 100% on time on demand. There is an inverse relationship between risk and...
21 November 2017 1,557 39 View
Recently I came across a couple of papers using data to demonstrate a method (e.g. neural network, probability distribution, etc). My areas of interest are: pitting corrosion prediction and...
17 June 2017 4,042 9 View
A large diameter 30-year old buried jointed pre-stressed pipeline which has been designed according to AWWA was subjected to a recent earthquake. It is suspected that the pipeline has developed...
16 June 2017 1,466 1 View
Geotechnical engineers must design foundations for offshore wind turbine under a large deal of uncertainties, which could lead to finite probability of the foundation failing in a storm. If you...
12 May 2016 8,395 3 View
I am closely associated with the oil and gas industry. Price fall since 1014 caused a lot of redundancies in this industry. One estimate says it is over 300,000 skilled professionals. Somebody...
05 May 2016 6,085 11 View
An offshore wind farm typically consists of 20-30 wind turbines. Data for the piled foundation design is collected by , say, nine boreholes. Due to variability of soil and the size of the farm,...
30 April 2016 8,864 12 View
Lawyers, scientists, physicians, accountants and engineer are trained to think logically and observe ethics of their profession, but they use different method of problem solving. Their training...
29 January 2016 2,307 81 View
Pigging data (also known as In Line Inspection) provides information on the corrosion defect geometry, such as depth and length, orientation, location and the corrosion type. Every few years...
07 October 2015 3,545 2 View
