Strong and extreme winds in the Arctic?

Hello everybody! Looking for a good source of information on strong and extreme winds in the Arctic (monthly values, annual extremes etc.). The form of maps (with isolines) will be most...

25 January 2021 8,984 4 View

No title

Dear Colleagues, I need your help. In book (can be found in Internet, free) Todhunter, I., & Pearson, K. (1893). A History of the Theory of Elasticity and of the Strength of Materials (Vol....

26 December 2020 433 1 View

Combine several datasets?

Dear colleagues, I would appreciate your advice on the following issue. Let's say, first I had investigated expression of Prot1 and Prot2 in tumor tissue, it's association with relevant clinical...

31 October 2020 4,875 2 View

Does the quantum vacuum have analogies in mathematics?

Take, for example, such a concept as a minimum flow, that is, a gradient vector field, the level surfaces of which are the minimum surfaces. Then the globally minimal flow, evolving to an...

13 September 2020 8,593 13 View

Can AI be emotionally intelligent (whatever AI, emotional, or intelligent may mean to you)?

Can AI be emotionally intelligent (whatever AI, emotional, or intelligent may mean to you)? Research addresses machine recognition and modeling of human emotional expression, including the...

11 September 2020 5,158 5 View

Where was Fischerella sp. PCC 9339/Fischerella musciola (UTEX1829) isolated?

Dear colleagues, I am currently comparing some genomic features in different representatives of Fischerella genus isolated from different eco-types. Unfortunately, neither PCC nor UTEX collection...

11 July 2020 4,003 12 View

Will DNA degradate if left over weekend during tissue lysis in extraction methods ?

Hi, Question occured while discussing with colleges if it's safe to leave tissue lysis over weekend, because there are no problems to left overnight which can even be written in some extraction...

09 July 2020 4,084 4 View

Are these claims about compactification true?

1. Do I understand correctly that closed curves on a 3-dimensional torus are represented as closed ribbons lying freely (with the possibility of inverting) on a classical torus? 2. Do I understand...

20 May 2020 799 3 View

Possible optimization algorithms for fitting a nonlinear model with no analytic solution (contains integrals that can only be solved numerically)?

I would be grateful for suggestions to solve the following problem. The task is to fit a mechanistically-motivated nonlinear mathematical model (4-6 parameters, depending on version of assumptions...

14 April 2020 2,117 12 View

How can I design a PBG substrate microstrip antenna in Matlab?

I'm using antennaDesign tool box of Matlab to design a insetfed Microstrip antenna. Now I want to compare the results with the same antenna, but with a PBG substrate. How can I do this?

10 April 2020 7,257 4 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View