Did any urologists have experienced with retroperitonel leiomyosarcoma from renal vein with IVC enxtension?

Recently, we got one lady with right side retroperitoneal mass involving renal vein and extends into IVC upto diaphragm. CT suggested leiomyosarcoma. Right kidney separately seen from mass and it...

19 February 2021 6,873 1 View

Divergence detected in AMG solver for temperature and species , DEFINE_VR_RATE, Fluent ?

In 2D Model, Reaction in porous Zone, Error occurs on hooking UDF , DEFINE_VR_RATE in Fluent, .The error spikes just after running calculation after 1st iteration. Divergence detected in AMG...

16 November 2020 9,053 3 View

How to create a surface plot and contour? If i have an excel file with X, Y ,Z values of the surface ( Periphery of a tube) and Q (heat flux) value.?

Need to create 3d surface plot. Data I have X, Y ,Z coordinate of the pipe surface and the corresponding Q (heat flux) values at that point. Nearly 222440 data points of a 2m length pipe. Thank you

07 October 2020 9,854 7 View

Initialization in Fluent? Hybrid initialization or Standard initialization ?

Looking towards an incompressible flow (with K-e, turbulence model), with mass flow/velocity inlet and Pressure outlet boundary condition. Which initialization method preferred? How far it can...

05 October 2020 4,742 5 View

Can anyone suggest good research topics for engineering management?

I am doing masters in engineering management.I need to find good topics to give a research proposal for this course

22 September 2018 5,356 3 View

How the critical heat flux vary with channel size for the same mass flux? Is there a general definition such that CHF increases with channel size?

If we take same square channel of different sizes, and allowing same mass fluxes through both, the small one or the bigger one can withstand the early dry out. I conclude the bigger one since...

04 September 2018 8,038 1 View

Best way to do speckle reduction in ultrasound imaging?

Dear All, I am trying to perform ultrasound image (linear array probe) smoothing using speckle reduction filters. Please suggest an easy to use and open access filter? It would be awesome to have...

21 August 2018 7,827 10 View

Why the Nyquist plot getting reverse and straight line for LSCF cathodes?

Dear Experts, I have recorded a typical nyquist plot for ( La0.6Sr0.4Co0.2Fe0.8O3) LSCF - Doped ceria nanocomposite which is a mixed ionic Electronic conductor. The sample has taken in the form...

13 November 2017 4,237 2 View

Is there any scientific basis for the early blossoming of "Cassia fistula" of Kerala and regional climate change?

24 February 2016 5,925 6 View

Can someone give me a brief explanation regarding the kinds of bacteria and the processes happening in aerobic and anaerobic bacteria?

Aerobic and anaerobic bacteria, methanogenesis, fermentations, factors affecting bacterial film growth, etc.

19 August 2014 9,862 5 View

How to find nature of extremum of a functional? what are the mathematical prerequisites to understand it?

For a function, usually sign of second derivative (and if it is zero, even/odd index of higher order derivative whose numerical value is zero) is enough to detect whether the extreme point is...

25 January 2021 7,703 3 View

How can the moment tensor inversion results can present good waveform fit (synthetic and observed waveform) from generalized Cut and Paste scheme?

Depending upon the distance of the seismic station from the epicentre, the quality of waveform data and the improvisation of the synthetic waveform on it is often a question. If the Pnl waveform...

31 December 2020 6,602 2 View

How to solve a finite difference equation with both time and space derrivatives?

23 December 2020 2,764 3 View

Question based on Integral Transform (from the book "Mathematical Methods for Physics and Engineering")?

I came across this question (attached below). I tried to solve it but got stuck in the portion where we need to calculate the inverse tranform. I found a solution of this question (also attached...

28 November 2020 7,789 3 View

How to solve a non linear system?

Hi everybody, I have a non linear system of 9 equations: F=A(F)F+B(F)g(F) F is a 9x1 vector of the unknowns, A(F) and B(F) are 9x9 matrixes which depend on F ang g(F) is a 9x1 vector which...

12 November 2020 9,972 6 View

In simple terms: to what extent do you believe classicial inversion frameworks provide more "general" estimates than learned frameworks?

This is more of a survey question than a query for precise mathematical detailing. Opinions are welcome!

10 September 2020 6,516 2 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 the position of band inversion (near or away the Fermi level) affects the electrical transport and thermal properties in semi-metals?

Dear all, Can somebody please put some light on how the position of band inversion, near or away the Fermi level affects the electrical transport and thermal properties in semi-metals? Thanks in...

19 August 2020 5,202 8 View

What is the reason to get inversed version of PPG signal?

I am using MAX30102 PPG sensor which consists of IR and RED led and photodiode to detect the PPG wave pattern. It is a reflective sensor. It seems to be giving the inversed PPG pattern when...

01 March 2020 874 4 View

How do I evaluate this integral in a simple way?

solved

12 February 2020 4,519 3 View