Can Gas Hydrates (a Green House Gas) quicken the Climate Change?

Can Gas Hydrates (a Green House Gas) quicken the Climate Change (Warming)?

10 November 2018 7,144 18 View

Whether NUMERICAL MODELS have really become the ARTIFACTs of inversion of field data to estimate hydraulic parameters?

Whether NUMERICAL MODELS have really become the ARTIFACTs of inversion of field data to estimate hydraulic parameters in the context of modeling fluid flow through porous media?

10 November 2018 2,311 3 View

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10 November 2018 4,038 13 View

El-Nino and North-East Monsoon in Peninsular INDIA: What is the actual physics that relates these two?

El-Nino and North-East Monsoon in Peninsular INDIA: What is the actual physics that relates these two? An analysis of the spatial distribution of the composite rainfall for El-Nino (La-Nina)...

09 October 2018 1,158 0 View

No title

09 October 2018 2,187 3 View

If initial waters mix and react, interpretion of net geo-chemical mass-balance reactions between initial and final water along a flow path feasible?

If the initial waters mix and subsequently react, whether - Can we interpret net geo-chemical mass-balance reactions between an initial and final water along a flow path?

09 October 2018 2,687 0 View

Addressing the term "nano-Darcy": Does it make sense?

Darcy - by itself - refers to a porous system at the macroscopic scale; and it emphasizes strongly that we are NOT supposed to look at the details - even - at the microscopic-scale. Given this...

08 September 2018 4,236 1 View

Diffusivity equation for describing oil flow in a petroleum reservoir: Can it be assumed to be an incompressible fluid?

Diffusivity equation for describing oil flow through a petroleum reservoir is deduced by coupling mass and momentum conservation equations. In many cases, the oil flow within the reservoir is...

08 September 2018 8,226 0 View

The "permeability-loss" and the "permeability-gain" in a typical CBM reservoir - nearly have equal magnitudes?

The "permeability-loss" term is associated with pressure depletion, while the "permeability-gain" is associated with the coal-matrix shrinkage in a CBM Reservoir. Both are expected to occur...

04 May 2018 2,226 0 View

How will you measure the "Well Flowing Bottom-Hole Pressure" using the Permanent Downhole Gauge (PDG) in a typical CBM Reservoir?

How will you measure the "Well Flowing Bottom-Hole Pressure" using the Permanent Downhole Gauge (PDG) in a typical CBM Reservoir? Do they still lead to production loss due to shut-in periods?

04 May 2018 1,870 0 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