How to calculate the energy reflection coefficients in LAMB wave edge reflection problem?

Hello everyone, Has anyone ever succeeded in calculating the energy reflection coefficients in LAMB wave edge reflection problem? Or any available code resources? I am a third-year master...

08 December 2020 1,151 3 View

Flexural wave absorbtion in thin plate at low frequecy using PML?

Hello everyone, Recently, I am trying to simulate the flexural wave relating problems in an infinite (large enough) thin plate at low frequency using COMSOL. Frequency-domain and eigenfrequency...

18 October 2020 6,927 3 View

How to calculate the energy reflection coefficients in LAMB wave edge reflection problem?

Hello everyone, Using the spectral collocation method (SCM), I have successfully obtained the complex wavenumber k, displacement U and stress field S of different LAMB modes. However, when I...

31 August 2020 3,813 2 View

How to calculate Lamb wave dispersion curves with a complex wavenumber k?

Hello everyone! I'm trying to draw Lamb wave dispersion curves with MATLAB, and I have succeeded with calculating the results with a real wavenumber or a pure imaginary wavenumber. I'm not so...

08 August 2020 2,665 11 View

How can I calculate a frequancy domain problem with PDE in Comsol?

Hello everyone, I want to solve a elastic wave problem in Comsol using PDE module since my model have a different consititutive relation which is not included in the present modules. I have...

23 July 2020 7,337 3 View

How to process synchrotron XRD data in Jade 6?

18 May 2020 7,995 4 View

OpenSees DisplacementControl of a node that is not loaded?

I am trying to model nonlinear, cyclic behaviour of a cantilever beam, I wish to apply a cyclic load at the free end. And I want the midpoint of the beam to be displacement controlled (ie. reverse...

17 October 2019 4,895 1 View

We transfected HEK cells for a secreted protein and want to confirm the protein is expressed in right MW. Should we collect supernatant for Western?

We transfected HEK cells for a secreted protein and want to confirm the protein is expressed in right MW. Should we collect supernatant for Western? Not sure we choose the right method. We have...

14 May 2019 4,804 4 View

The 14C natural abandance keep stable in the atmosphere, so will the acceleration of soil microorganism metabolism influnce the 14C natural abandance?

The 14C natural abandance keep stable in the atmosphere, so will the acceleration of soil microorganism metabolism influnce the 14C natural abandance?

13 November 2018 876 6 View

Laue oscillations in XRD pattern of Pt film

Hi,guys, I have obtained epitaxial NiO(100) film on Pt(100)-covered MgO(100) substrate by magnetron sputtering. The attached is its 2theta-omega XRD pattern. One reviewer comments that " The peak...

26 July 2017 7,657 3 View

Which SAR dataset to use for generating coherency matrix and performing target decomposition (Description) ?

Working on chandrayaan-2 DFSAR data, there are three datasets available: 1) Slant range image data product: The slant range complex image file. Each pixel is represented by two 4-byte floating...

02 March 2021 8,481 3 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 View

For modelling epoxy-based matrices (in composites), which model in ABAQUS is the most suitable, Concrete damaged plasticity or Drucker-Prager model?

I am working on developing a micromechanical FE model for predicting kink-band formation in UD composites. To model matrix plasticity, which model, out of Concrete Damaged Plasticity and...

28 February 2021 5,415 1 View

Alternative to mediation analysis?

I am currently working on my dissertation and want to explore the role of competence as a mediator between the effect of colour of clothes on voting intention (focus on Western countries)....

21 February 2021 8,609 1 View

How to dissolve cross-linked Amberlite IRC120 H, hydrogen form resin?

Hello all, I have used Amberlite IRC120 H, hydrogen form acidic cation-exchange resin for the ion-exchange of waterglass [sodium silicate solution -- 40% Sodium silicate (mol ratio > 3.2)...

21 February 2021 5,614 3 View

Color of spiro-ometad film?

What does the color of a spiro-ometad film indicate? I got purple, green, red, even black color of the spiro film. Is there anything we can get from the preliminary color analysis(e.g. oxidation...

21 February 2021 1,831 4 View

Any Homemade Organic Synthesis Practices?

Hi everyone, I am a teacher of Heterocycles Synthesis, Is there a home practice that you recommend for undergraduate students? A simulator would also be useful Due to the pandemic, students...

18 February 2021 2,769 4 View

What is the difference between the supplementary cementitious materials and alkali-activated concrete?

18 February 2021 9,188 3 View

Any information about dinitrosalisylic acid reagent end point color stability ?

I work on estimation of alpha amylase activity using dinitrosalisylic acid reagent If i put the reagent to stope the enzymatic reaction and allow the reagent to react with the produced reducing...

17 February 2021 7,402 4 View