Why RMS value of a periodic signal is equal to sqrt of linear spectrum divided normalized equivalent bandwidth?

Hi everyone! I'm reading a book on noise and vibration analysis. And i knew that how to calculate a RMS value of periodic signal (x(n)) by: xRMS = sqrt(sum(XL^2(k)) / Ben) where: xRMS is RMS value...

02 March 2018 3,621 0 View

Which book can i find formular of mass matrix of different finite element types?

Hello everyone! I have a problem, that is when i perform a finite element analysis (for example, to a beam that has high of across-section is invariant), i can easily have a formular of element...

11 December 2017 9,670 0 View

How can i use "resample" command in matlab to change Bandwidth of a measured signal ?

Hi everyone! Now, i'm reading a book "Noise and vibration analysis" by Anders Brandt. And in this book, the author wrote that we can change bandwidth of a measured signal using resample...

09 October 2017 6,551 7 View

Why is it difficult to obtain modal parameters when measure extremely light damping structures and those results is inaccurate?

07 August 2017 3,620 1 View

How can we calculate damping loss factor (netar) ?

06 July 2017 4,861 17 View

What does locations and number of measurement points on structures depend on?

05 June 2017 7,255 2 View

How is effect of using different damping models in output of a modal analysis ?

05 June 2017 7,267 7 View

How can i calculate dynamic response of structures using mode superposition method IN FREQUENCY DOMAIN ?

03 April 2017 7,127 0 View

How to address this issue in the analysis of Real-Time PCR results?

To dear Researchers, I was analyzing a series of concentration for estimation of Real-Time PCR efficiency. The concentration was 1:10. I used MS-excel to evaluate Slope. The result of slope was -8...

01 March 2021 8,683 4 View

What do I do with DLS peaks that are from the buffer?

I'm looking at the aggregation of my protein sample using DLS. Unfortunately, my buffer (20mM HEPES) also results in a set of peaks. These are at approximately 1 and 1000 d.nm. The lowest peak...

01 March 2021 9,015 2 View

Can I download BibExcel for MacOs?

Hi everyone, I would like to ask how I can download BibExcel software for MacOs? There are some links which are supported by Windows but I could not find it for Mac. or is there any other software...

01 March 2021 652 1 View

Anyone with some Transgenomic Wavemaker software? Seeking help from the chromatography community?

I am trying to seek out some Transgenomic Wavemaker software (happy to purchase a computer too) to operate a fraction collector. The only way to connect to the fraction collector so far is to...

23 February 2021 9,181 1 View

Best excel chart to compare algorithms' running time?

Hi I want to compare the running time of robotic path planning algorithms. The grid size is 8X8. I have 100 scenarios of start and goal positions.. Each scenario is run in three obstacles ratio...

22 February 2021 621 1 View

What low-cut filter (high Pass frequency) to be used for response spectrum (Tripartite plots) ?

What low-cut filter (high Pass frequency) to be used for the response spectrum (Tripartite plots)? I am currently working on differentiating between hard/soft site responses in Indo-Gangetic...

21 February 2021 9,273 2 View

How to open an old ".MTS" file containing spectroscopic data?

Hi supreme hive-mind of the internet, we have some old *.MTS files that are supposed to contain spectroscopic data, probably some coordinates and a long list of single line spectra. Basically,...

16 February 2021 9,385 2 View

Room Occupancy Calculation ?

15 February 2021 1,997 6 View

How to check if the PMF profile obtained from ABF simulation is correct?

I am doing ABF simulations to calculate ligand binding enegy. The PMF profile that I get using single long ABF simulation is attached as pmf_total.png. When I do this ABF calculation with 10...

10 February 2021 4,170 2 View

What is the Greedy windowed algorithm description?

Hi Dear Ph. D., I have carefully read your paper on anomaly detection in smart meters. Unfortunately, the research does not decribe the greedy windowed algorithm, neither its complexity, nor the...

10 February 2021 2,462 3 View