We have gotten the band structure of a seismic matematerial. Now, we want to distinguish the surface wave and body wave. How to extract the Rayleigh wave modes from the band structure of the seismic matematerials in COMSOL Multiphysics ? Thanks !
Hi there, I did a CFA to 10 items on 2 latent variables. The model fit is too good and I've never seen it before. CFI / TLI = 1, RMSEA = 0. Is it okay, if everything else was done properly?...
24 July 2024 5,454 7 View
I made a myocardial tissue using cardiomyocytes and type I collagen (3 mg/ml). During the culture process, the tissue remodeled and its width decreased. What factors influence the degree of...
10 May 2024 7,784 0 View
Hello, I'm looking for journal recommendations for my study on teacher satisfaction with online teaching. Using Structural Equation Modelling, we applied Herzberg’s two-factor theory to identify...
11 February 2024 7,244 4 View
If an activation function has a jump discontinuity, then in the training process, can we implement backpropagation to compute the derivatives and update the parameters?
09 January 2024 7,337 1 View
Hi there, I did confirmatory factor analysis (first and second order). However, the model fit is always bad, i.e. chi-square is always significant with quite a high value (e.g. 600), and RMSEA is...
15 December 2023 6,793 7 View
I did a factor analysis and identified two factors (i.e. intrinsic satisfaction and extrinsic satisfaction). Then on Mplus I did a regression of the outcome variable on factor scores: overall...
14 December 2023 6,656 7 View
Hi, I did an exploratory factor analysis. Direct Oblimin and Principal Axis factoring. The 12 variables loaded on 2 factors. The factor loadings on factor 1 (column one in pattern matrix) and...
05 December 2023 520 4 View
How to calculate the results of the mixed confusion matrix obtained, such as the first row of elements 0.54,0.16,0,0.29 in condition A
01 November 2023 2,862 0 View
I set the field functions for pressure and volume fractions, and the results are not quite right.
07 July 2023 624 0 View
Hey guys! I am wondering if you have a perfect way to dissolve matrigel completely? I was trying to release organoid and want to select aorganoids that were smaller than 40 um. I tried put the...
06 July 2023 3,304 2 View
I have already collected seismic data and need to analyse them. Please assist with the software that can also analyse the Peak Ground ACCERATION (PGA).
10 August 2024 4,839 0 View
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
I have found an EEG where only alpha waves are present. Beta waves are not found in active patients. What interpretations ?
26 July 2024 4,741 1 View
Photo-electric effect A light particle moving towards a surface cannot (by collision) force an electron particle to move away from that surface. A light wave can instead make interference with a...
19 July 2024 8,389 9 View
I want to develop the figure like attached figure. How can I get, peak period and significant wave height at any given location.
13 July 2024 886 2 View
Hi, I am trying to simulate a ship in a canal. The top width of the canal is 20m, bottom width is 6m, depth is less than 5m. Ship has a length of 11.7m breadth of 4m, draft is 0.62m. The velocity...
10 July 2024 1,732 4 View
We assume that the Schrödinger wave equation, iℏ(dψ/dt)= Ĥψ. . . . . (1) is incomplete and cannot be considered a unified field theory. on the other hand, its square, d/dt)partial U= D Nabla^2...
06 July 2024 7,106 8 View
Previously, I successfully modelled the transmission and reflection of electromagnetic waves incident on non-magnetic materials. Please refer to my publications for details: 1- A polynomial model...
05 July 2024 1,396 2 View
Hi guys, I am trying to simulate a 1 ps long plane wave propagating in a dispersive material, with the wave optics transient module. According to the drude-lorentz model, when the frequency of...
29 June 2024 486 1 View
I am working on some .edf files. I try to extract the frequency distributions from the EEG waves. The thing is, which i can't be sure if it is a problem or not, the most dominant frequency...
28 June 2024 6,897 4 View