How to create various treatment solution based on pH variation ?

Dear RG Colleagues, I want to test the effect of pH on germination. How to create these different treatment solutions ? pH 2, pH 4.... Thank you

09 October 2019 8,886 3 View

Experimental design randomized or ?

Dear RG Colleagues, I am trying to study the effect of a biofertilizer and I am confuse about the experimental design. So I have : 3 plant species and only one factor "Biofertilzer" and my...

07 August 2019 1,416 4 View

Can you identify this plant species?

Dear RG Colleagues, I need help to identify this plant. I found only four individuals. Thank you Regards AK

04 May 2019 1,842 31 View

How can we protect Biodiversity (plant and animal species)?

Dear RG Colleagues, When we start a research project with the purpose of publishing and sharing the results in a scientific journal, we are often asked to give the geographical coordinates of our...

04 May 2019 6,795 29 View

Vulnerable or endangered species?

Dear RG Colleagues, What could make a research study conclude with: " This animal or plant species is endangered and must be mentioned in the red list" ? What are the most important criteria to...

31 December 2018 6,846 7 View

Can you identify this plant species?

Dear RG Colleagues, Can someone help me to identify this plant species? Thank you Abdenour

31 December 2018 1,406 12 View

Can you identify this tree species?

Dear RG Colleagues, Can you please help me to identify this tree species?! Best regards Abdenour PS: Best wishes through this happy new year

31 December 2018 5,836 8 View

Today I'm not asking a question?

Dear RG Colleagues and Friends, Wish you a bright, prosperous, and glorious new Year ahead. Happy new year. New hopes! New resolutions! New Aspiration! Love N Laughter in your life! Peace N...

11 December 2017 4,993 0 View

Can the degre of freedom be ZERO?

Dear Colleagues, Whan I was doing ANOVA, correlation between A and B turns to ZERO, so no Pr. How can you explain that? Thank you

10 November 2017 1,208 6 View

What plant species you gonna choose?

Dear RG Colleagues, If you have to choose between the thousands of species that exist on Earth, leaving only one species, which one you will choose?

10 November 2017 351 12 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

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

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View

What is the difference between genotype and haplotype data in the ped format?

Hi everybody In the ped format for genotype, alleles of any SNP are represented by two columns (one for each allele, separated by a space). Is a column sufficient for the haplotype to...

27 February 2021 1,965 1 View

How to calculate Ligand-active site distance in a ligand-protein complex from MD simulation?

I have run a MD simulation of a ligand-protein complex in GROMACS using CHARMM forcefield. Reviewer has asked me to calculate Ligand-activesite distance and binding free energy of ligand with...

27 February 2021 4,703 1 View