How can I make unsupervised clustering of trees species using algorithms like HAC, Kmeans... in R?

I am working on the development of multi-species volume allometric equation from diameter (DBH). I would like to form groups of species with the largest possible volume-diameter correlations by...

19 January 2021 5,752 5 View

How can I build a crystal model(Beta-silicon nitride) in VESTA?

I will make an atomistic simulation of the beta-silicon nitride phase with the GULP code in order to obtain its structural, mechanic and thermodynamic properties; I would like to use fractional...

16 July 2019 4,819 3 View

Where can i find good resolution imagery (remote sensing, DEM) for Gange river basin ?

I must first collect some data of the Gange basin (6 states), India. I find SRTM data for DEM, and look for hydrologic vector data, and good remote sensing imagery. Thank you for your next...

24 March 2019 3,557 4 View

Nature of a white cloudy floating layer observed during HeLa lysate centrifugation ?

Preparing Lysate of HeLa cells (1E+6 in 0.5mL lysis buffer 1.5mL eppendorf tube) by standard chemical lysis (RIPA like buffer) during the 12000 RCF centrifugation step (clarification) I noticed a...

28 October 2018 2,035 2 View

Pairwise.t.test after lmer: is that right?

I used the following model: model1= lmer(A~B*C+(1|block)) where A is a quantitative (continuous) variable and B and C are qualitative ones, with respectively 3 and 4 levels (A and B are crossed, 1...

06 October 2016 382 4 View

Hello, i am doing clonogenic assay but my cells appear dot like(form is not covenient) can someone help troubleshoot?

i seeded 1000 cells and it has been 2 days, what to do?

04 September 2016 1,857 5 View

Do you have pictures of the experimental setup for electrophysiological recordings of the moth's auditory circuit?

17 November 2014 9,841 3 View

Why are plant meristems always virus free ?

When plant breeders want to re-generate plants that are virus-free using asexual multiplication (in order to obtain clones of the primary unhealthy plant), they often collect the apical meristem...

23 October 2014 7,040 16 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

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 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