Are there matroids and algebraic structures?

More Hossein Yekani's questions See All

How to model Supercritical water gasification (SCWG) process in Homer software?

Hi everyone How to model Supercritical water gasification (SCWG) process in Homer software?

25 February 2021 4,075 1 View

Is it possible to define biogas as a fuel in the reformer process(scwg) in Homer software?

Hi every one Is it possible to define biogas as a fuel in the reformer process(scwg) in Homer software? Biogas fuel is not available in the options thanks

23 February 2021 6,518 3 View

How can I find the thermophysical properties of high temperature microencapsulated phase change materials (MPCM)?

Hi everyone. I am looking for a high temperature MPCM. More specifically, I need the thermo physical properties of a microencapsulated phase change material with the melting temperature between...

14 February 2021 3,606 2 View

Can explain this diagram to me, is this the average consumption curve for one day or the total consumption of days in a month summed up in specific?

The hourly load curves of the selected household in each season are shown in Fig. 28. Figure 28 shows the demand for electricity in four months on an hourly basis. Can you explain this diagram to...

08 February 2021 657 16 View

How can I find eddy size distribution in ANSYS Fluent?

Hi everyone, I'm simulating a 3D turbulent pipe flow using the SST K-W turbulence model in ANSYS Fluent. Is there any quantity among the postprocessing quantities that represent "eddy size" or...

01 February 2021 731 1 View

Is it possible to highly selective remove a fused silica template from PDMS by laser-induced backside wet etching (LIBWE) method?

Hi everyone I'm trying to pattern circular cross-section microfluidic channels in PDMS. The template is an optical fiber with an axially non-uniform diameter. To the best of my knowledge, there...

22 January 2021 2,352 2 View

How to match results from based paper and Ansys Workbench in modeling piezoelectric?

Hi guys, I have modeled a laminated composite beam patched with piezoelectric layers in Ansys Workbench, but the results are far away the results reported in base paper. I have attached the...

13 January 2021 7,356 3 View

What is the gradient thermal annealing (GTA) process?

Hello to all What is the gradient thermal annealing (GTA) process?

06 January 2021 7,740 2 View

What is the difference between organic perovskite solar cell and inorganic perovskite solar cell?

Hi everyone What is the difference between organic perovskite solar cell and inorganic perovskite solar cell? Thanks

01 January 2021 4,310 6 View

How to measure both Sulfites and Sulfates Ions In water?

Could you please help me to know a very simple method to measure the amount of Sulfite (SO3) and Sulfate (SO4) ions in the water? (titration preferred)

27 December 2020 9,350 4 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

Daniela Bubboloni

I do not know but the question is surely interesting...can you upload something to better understand your idea?

Muhammad Ali

Yes indeed, for comprehensive details, I suggest you follow : https://www.tandfonline.com/doi/abs/10.1080/00029890.2020.1689781?journalCode=uamm20

Article On some combinatorial properties of algebraic matroids

https://etd.ohiolink.edu/!etd.send_file?accession=osu1366301251&disposition=inline

Preprint Algebraic matroids in action