9.20) A groundwater aquifer is contaminated with benzene. Contrast the relative effectiveness of air stripping to activated carbon adsorption by providing a preliminary design of each process.
In: Civil Engineering
10.5) Contrast the three categories of solid-phase treatment.
In: Civil Engineering
In: Civil Engineering
SOLVE USING MATLAB
Consider the world oil production data of Computer Problem 3.2.3. Find the best least squares (a) line, (b) parabola, and (c) cubic curve through the 10 data points and the RMSE of the fits. Use each to estimate the 2010 production level. Which fit best represents the data in terms of RMSE?
|
year |
bbl/day (×106) |
1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 |
67.052 68.008 69.803 72.024 73.400 72.063 74.669 74.487 74.065 76.777 |
In: Civil Engineering
What are the Engineering Ethical issues Such as (such as rights and obligations; conflict of interest; professionalism and mentoring; confidentiality; whistleblowing; bribery, fraud, and corruption) That Leads to the collapse of the WEST GATE BRIDGE in Melbourne Australia and how these can be prevented? Please write in essay style.
I will give you thumbs up just do it.
In: Civil Engineering
The center of buoyancy of a floating body is at x = 0, z = 0 and its center of gravity is at x = 0, z = 0.9 where (x, z) are the horizontal and vertical coordinates. The body is tilted through an angle θ = 5◦ so that the center of buoyancy shifts to x = 0.1, z = 0. Will the floating body (a) Return to its undisturbed configuration (b) Move further away from its undisturbed configuration ?
In: Civil Engineering
In: Civil Engineering
Confirm Continuous-Flow Stirred Tank Reactors (CFSTRs) in-series approximate a Plug-Flow Reactor (PFR).
1) Assume steady-state and 1st order reaction kinetics
2) The total volume of the CSFTRs in-series is equal to the volume of the PFR.
3) Also, the total Hydraulic Retention time (HRT) of the CFSTRs in-series is equal to the HRT of the PFR.
In: Civil Engineering
Please discuss.
Let’s assume that the Chief Engineer has asked you to recommend a material for the design of a critical load-bearing structural element. It is critical since if it fails it can have a catastrophic impact on the performance of the system. For example, if a turbine blade fails in a jet engine, it can destroy it. The Chief has given you a choice between a low density, high stiffness but brittle ceramic material or more ductile, higher density, low stiffness metal material. Your task is to recommend which material is best suited for the design requirement.
Start by drawing a generic stress-strain curve for a brittle material and for a ductile material. Describe the curves and defend which one you would rather use to design a critical element of your structure.
In: Civil Engineering
TRANSPORTATION ENGINEERING: A multilane highway has four lanes (2 in each direction) and a measured FFS of 55 mph. One upgrade is 5% and 0.62 miles long. Currently trucks are not permitted on the road, but there are 2% busses in the directional volume of 1900 vehicles (PHF is 0.80). Local authorities are considering allowing trucks into the traffic stream. If this is done, they estimate 150 trucks will use this highway during peak hour. Before trucks, the driver population factor is 1, and it goes to 0.97 after trucks. What will be the level of service before and after trucks are allowed on the road.
In: Civil Engineering
1. How is a brick veneer wall built? What are the correct steps in this process?
2. Why do we need to use an SW brick for an exterior wall in New England? And what type of mortar should we use?
In: Civil Engineering
how would the car react to a temporary signage (construction) traffic cops,or ambulance with sirens trying to pass them?
In: Civil Engineering
Travel demand modeling plays an important role in urban transportation planning as it helps planners explain and predict behavior of consumers of transportation services. The traditional Urban Transportation Planning System (UTPS) Four-Step Procedure has been a center piece of travel demand analysis. However, a number of alternative approaches and improvements have been developed and implemented over the years.
Project Objectives
The objectives of this term paper are:
1. To document the history and theoretical background of travel demand modeling
2. To identify alternative approaches for modeling travel demand
Project Questions
1. What are the basic principles and theories behind the traditional Four-Step Procedure for travel demand analysis? Demonstrate by formula or numerically, or otherwise.
2. What are the advantages of the Four-Step Procedure for travel demand analysis? Cite examples, if any.
3. What are the limitations of the Four-Step Procedure for travel demand analysis? Give specific examples (numerically or otherwise)
4. What alternative approaches have been used to address the limitations of the traditional Four-Step Procedure for travel demand analysis? Give specific examples (numerically or otherwise)
In: Civil Engineering
Greater and greater emphasis is being placed on the value of collaborative working. Both from the viewpoint of the reduction in waste and the benefits of specialists being involved at appropriate project stages. Recently, these principles have been applied to project planning. With reference to project management theory discuss the implications for the project manager of these trends, paying particular attention to the implications for planning throughout the project life-cycle.
In: Civil Engineering
what type of new dangers are introduced with self driving cars ? i.e interface hackers ?
In: Civil Engineering