Civil homework help

Resources: Internet, Governmental websites (city, state, or local policy agencies in the U.S.), Media, News articles
Locate state or local government’s project and the effect on the operating budget.
Conduct research about a state or local government project, such as adding a building, park improvements, road improvements, or adding to or building of a new police station, and the related effects on the operating budget of the agency. Civil homework help

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Write a 1,050- to 1,400-word paper in which you include the following:

  • Describe and give brief overview of the agency. For example: size of community, size of agency, and agency responsibilities.
  • Describe the type of government project and implementation process.
  • Rely the advantages and disadvantages of the project on the agency operating budget.
  • Summarize your findings and make recommendations about the effects of capital projects on operating budgets.

Format your paper consistent with APA guidelines.

 
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Chemical Engineering homework help

Read the article by D. S. Sholl and R. P. Lively, “Seven chemical separations to change the world,” Nature, 2016, Vol. 532, pages 435-437. You can find this article in the files on Canvas. Chemical Engineering homework help

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Write a 1 to 2-page typed, single-spaced highlight of the article. This should not simply be a summary of the article. Rather, it should highlight some particular aspects you found interesting and explain why those interest you. Please make sure each paragraph contains a topic sentence. Remember to explain using stories or specific examples to keep your writing interesting. Remember that quoting specific facts or figures is much better than talking generically. For example, it is better to say ‘Transportation accounts for about 28% of energy consumption in the United States.’ than to say ‘Transportation uses a lot of energy.’ Make sure your highlight contains the full bibliographic information of the journal article: list of authors, article title, journal name, year, volume, and page numbers.

 
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Electrical Engineering homework help

1. Determine if the discrete-time system y[n] = x[n] + 0.5x[n+2] -0.5y[n-1] is a) linear, b) causal. (10 points)

2. Consider the transfer function of an LTI discrete-time system given by . a) Find the poles and zeros of the system, b) Is this system stable? Explain, c) What is the response of the system at DC (zero frequency)? (15 points)3. The specifications for a lowpass FIR digital filter are: peak passband ripple is 0.25 dB; minimum stopband attenuation is 45 dB; passband edge frequency is 4 kHz; stopband edge frequency is 6 kHz; sampling frequency is 20 kHz. Determine using Kaiser’s formula the filter order required to satisfy the above specifications. (5 points)Electrical Engineering homework help4. If the band edges of an IIR digital BPF are 3 kHz and 6 kHz, respectively, what are the corresponding prewarped frequencies in the analog domain if bilinear z-transform is used? Use a 20 kHz sampling frequency. (10 points)

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5. Consider the design of a lowpass digital filter given the passband and stopband ripples, passband and stopband edge frequencies. Which type of filter,IIR or FIR, will give the smaller filter order? Explain the reason. (10 points)
6. It is well known that an IIR digital filter, in general, has a nonlinear phase response. Describe how you will linearize the phase response of such an IIR filter without altering its magnitude response.(10 points)
7. Develop a minimum-multiplier realization of a length-9 Type 3 FIR transfer function. Note that the impulse response of a Type 3 FIR filter is of odd length; that is, the degree N is even and satisfies the asymmetric condition . (10 points)
. Develop a canonic direct-form realization of the transfer function (10 points)9. What is the minimum number of bits required in the ADC (analog to digital converter) using uniform quantization if the SNR due to quantization of the ADC is to be approximately 72 dB? For this case, what is the step size if the signal input to the ADC is between 0 and 1? What is the maximum absolute error due to quantization of a sample? (10 points)

10. Consider the linear convolution of the sequences {h[n]} of length N and {x[n]} of length M via DFT algorithm. Find the total number of floating-point complex multiplications and additions required using brute force method to carry out the DFT in calculating the above linear convolution. (10 points)Electrical Engineering homework help
 
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Mechanical Engineering homework help

Use knowledge you learned on mechanical properties and failure mechanisms of engineering materials to write an essay to analyze the materials issues in a structural failure incident (aircraft accident, bridge collapse, race car failure, etc). Among all possible failure dmechanisms, pick one specific topic you consider to be the most critical in causing the failure and discuss the history of the problem and how this could be improved in future designs. Mechanical Engineering homework help

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In this essay you need to address following issues:
1, Based on the analysis of one particular failure incident to make a connection with the wide-spread existence of the same problem in other systems. Discuss the necessity of a broad education in a global &societal context to understand the impact of mechanical engineering solutions.
2. Through engaging in search for the history and possible solutions to one particular problem for future design improvement, discuss the need for and cultivate the ability to engage in life-long learning to solve engineering problems.
3. By researching on the possible solutions to the problems related to mechanical behaviors of materials, discuss the knowledge of contemporary issues, especially those related to mechanical engineering.
4. The essay should include but not limited to following sessions: introduction, specific example, analysis and discussion, conclusion and references. Please include your insight, analysis, understanding and suggestions in the discussion.
The essay should be at least 1500 words but less than 2500 words.

 
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