Elbow and Its Insertion Loss (Acoustic). What is the definition of elbow?

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Architecture acoustic , mechanical & HVAC noise, vibration isolater, rain impact noise references?

Dear fellow friends, are there any good and PRACTICAL references for above subject matter? which can show real life problems and calculations. Thanks

24 April 2020 7,348 1 View

Damping ratio is always the parameter that determine with greatest degree of uncertainty?

Any reason why so difficult to determine damping ratio?

05 June 2018 1,687 16 View

Damping ratio is always the parameter that determine with greatest degree of uncertainty?

Any reason why so difficult to determine damping ratio?

05 June 2018 799 17 View

Damping Ratio between EMA and OMA?

Hi guys, when I try to compared the results from OMA test and EMA test, I found out that percentage of natural frequencies is quite small and good MAC values are actually observed. But the...

10 November 2017 4,613 1 View

What is meant by "monophase" excitation vector and "monophase" response vector?

Hi everyone, I came across the term "monophase" excitation vector and "monophase" response vector. Can anyone explain the term in details?. thanks =)

04 May 2016 6,332 0 View

Problems about acousto-optic coupling in Comsol, how to check whether the moving mesh is correct?

I’m trying to reproduce the acousto-optic coupling simulation in the paper Frequency–angular resolving LiDAR using chip-scale acousto-optic beam steering. LNOI(lithium niobate on insulator) is...

13 August 2024 9,795 0 View

How to learn more about SPSS and its Application?

I would like to learn more about SPSS and Its application especially in regards to data analysis. Please suggest me how I can learn more about it. Thank you so much.

11 August 2024 9,101 4 View

Can I base on reverse DNA sequences to perform alignment, convert to amino acids and GenBank submission?

I have reverse sequences (AB1 format), can I base on reverse DNA sequences to perform nucleotide alignment, convert nucleotides to amino acids and deposit the sequence in GenBank database?

11 August 2024 5,138 1 View

Baseline drift in HPLC? What causes this?

Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!

11 August 2024 3,770 4 View

Text-Communication from the M1 Hand Area using BCI—and then there is Elon Musk?

Willett, Shenoy et al. (2021) have developed a brain computer interface (BCI) that used neural signal collected from the hand area of the motor cortex (area M1) of a paralyzed patient. The...

10 August 2024 7,180 0 View

Has anyone applied Python in the field of textile engineering for data analysis, automation, or smart textiles?

I'm currently exploring the application of Python in textile engineering, specifically in areas like data analysis, process automation, and the development of smart textiles. I'm interested in...

10 August 2024 7,429 2 View

How can I use the cif data obtained from rietveld refinement extracted via gsas2, for microstructural analysis using ETEX software?

09 August 2024 7,718 0 View

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 View

How to prepare the nanoparticle treated fungal sample for Environmental SEM analysis?

A fungal strain was treated with nanoparticles. We want to do an environmental SEM analysis. So could anyone share your views on preparing the sample? Thank you.

07 August 2024 5,307 1 View

How to normalize and take the significance of the MTT OD values with 3 replicates for the same cell-line?

Hi, I have a question about normalizing the MTT OD values for doing the statistical analysis. So, if we have 3 different plates and we call them 3 different replicates, so, first we would...

07 August 2024 8,106 4 View

Malcolm White

Read this

https://ocw.upj.ac.id/files/Textbook-ARS-405-TEXTBOOK-14-FISIKA-BANGUNAN.pdf

I found out everything you want in it in 5 minutes

Jack Chong

Hi Malcolm White, Thanks. Great sharing!

Ramin Rahmani

Dear Malcolm White ;

Hope you are fine.Thanks for sharing this valuable chapter.

Would you please share the whole textbook? I am interested to study more in this field.

You will have to find it yourself, if it is there.