How does SEA software normally number subsystems?

Dear colleagues, What is the common subsystem numbering system in SEA modelling software (i.e. VA One, AutoSEA2)? Cheers, Feng

27 February 2021 7,073 3 View

Can a Golgi-stained dendritic spines picture processed by Image J be directly used for publication?

24 February 2021 3,348 2 View

How to extract dry soils such as rocks and Debris from Sentinel-2 images using Google Earth Engine?

How to extract dry soils such as rocks and Debris from Sentinel-2 images using Google Earth Engine?

17 December 2020 6,600 2 View

Why does the Abaqus simple tension simulation fail to converge for 2 elements perpendicular to load but not for 2 elements parallel to load?

I am simulating a simple uniaxial tension by pulling for a displacement of 0.4 in the Z-direction on a quarter symmetry cube with side lengths of 0.8. I am using an elastoplastic self-consistent...

08 September 2020 8,937 3 View

Can one find direct and elementary proofs for two integral formulas?

In the preprint W.-H. Li and F. Qi, A further generalization of the Catalan numbers and its explicit formula and integral representation, Authorea Preprints (2020), available online at...

24 August 2020 4,391 21 View

How to better control the sharp notch for an Abaqus Umat simulation?

I have a notched specimen as shown in attached NotchedSpecimen.png. It is basically a bar with 4 circular cuts on four sides. As a result, the specimen has 4 sharp notched edges. It is a quarter...

11 August 2020 7,018 4 View

With machine learning of images, how to make 'magnification' a factor in learning model?

Say we have microscope images obtained at various known magnifications. And I'd like the model to be able to tell that a big feature in a high magnification image is the same as a small feature in...

09 August 2020 4,289 5 View

How to Obtain the backscattering coefficient from the image using Google earth engine?

Dear All: I've only recently started studying the sentinel-1 image. I want to get the backscattering coefficient from the SAR image using the google earth engine. Please tell me...

04 July 2020 4,886 2 View

Weird bug with Abaqus boundary conditions?

I made a model and meshed it with quadratic tet and applied symmetry boundaries on the three flat surfaces. The model is pulled in tension by applying z-displacement on the back surface (not...

14 June 2020 6,819 3 View

Errors question about abaqus cohesive element ?

08 January 2020 2,353 1 View

How to classify strictly upper triangular matrices by similarity?

Let F be a field. Consider U, the set of n times n strictly upper triangular matrices in F. For X, Y in U, we call them similar if there exists some S, which is non-degenerate and upper...

01 March 2021 2,957 8 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 View

Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 View

How to find a correlation between coordinates in a curvilinear coordinate system?

Hello. I have a skewed elliptical coordinate system (I use alternative elliptical coordinates). And I need to determine connections between coordinates in order to fetch a covariance matrix of...

28 February 2021 364 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

What are the methods used for CNT..?

Respected Professor's i hope you are doing well and happy. i need some information about carbon Nanotubes. before blending the CNT with the matrix the CNT has been introducing in some treatments....

24 February 2021 5,383 5 View

How can I generate random samples from Bingham distribution in R? How can I construct those symmetric matrices?

in the function rbingham(n,A) in R software how can I construct that A (symmetric) matrix?

24 February 2021 3,528 3 View

How does the injection volume impact LLOQ and ULOQ in regression analysis (LC-MSMS)?

Hello, I have run into an issue that has sparkled a debate at work: is the LLOQ/ULOQ impacted by injection volume under the following circumstances: 1) Same dilution factor of all samples 2)...

23 February 2021 9,159 3 View

Multinomial probabilities and confidence intervals - obtaining the CI of the reference category?

Hi, Some background to my question: I have fitted 1st order multinomial Markov models with covariates. Since all probabiilties (for each row of the transition matrix) sum to 1, I estimate only...

22 February 2021 2,541 4 View