How can one analyse weighted longitudinal networks with SAOMs ?

14 January 2021 3,920 4 View

Is it possible to analyze weighted networks dynamics with temporal ERGMs (TERGMs)?

Dear all, I would like to know if it is currenly possible to use temporal ERGMs (Exponential Random Graph Models) for analyzing weighted networks? For now, it seems that software packages...

15 November 2020 7,621 3 View

Forced Choice in Qualtrics ?

Hi everyone, I need help to build a forced choice task in Qualtrics. What I want is (quite) simple : I have a list of 50 easy activities and a list of 50 difficult activities. For each trial, my...

27 October 2020 5,372 2 View

How to import ECG data recorded with BrainVison Recorder (.eeg files) into Kubios?

For HRV analysis I would like to use Kubios Standard. I recorded ECG with BrainVision Recorder and get .eeg files which cannot be importet into Kubios directly, as the Standard version only...

12 December 2019 6,470 2 View

Storage of polycyclic aromatic hydrocarbons dissolved in DMSO?

22 May 2018 9,985 3 View

Can I input time as an explanatory variable in a GAMM?

My question relates to my previous question about GAMMs (if some of the same people should read this). I am working in R with the package mgcv and the function gam. My data: A lot of bacterial...

16 November 2017 8,251 2 View

Can random effects be approximated in Generalised additive models (GAM) instead of using Generalised additive mixed models (GAMM)?

What is the difference between adding a random effect to a GAM by adding it to the model as a factorial explanatory variable, compared to adding it as a random effect to a GAMM? Would it be...

31 August 2017 1,811 4 View

How to ship/carry frozen plant material from Finnish Lapland to central Europe?

Hi there. I'm doing some work in Sodankyla, Finland which is quite high north and a bit remote. I need to get frozen/refridgerated samples back to the Netherlands. I'm limited in my materials to...

27 July 2017 4,379 3 View

How to analyze RAPD result using Principal Component Analysis (PCA) in SPSS?

I am analyzing genetic variation among 26 individuals of Physalis angulata using RAPD method. I got 16 locus as the result. I have to analyze the result using PCA in SPSS. I've searched in many...

18 May 2016 6,054 3 View

How do you calculate C0 and Ca coefficients for Cais stiffness function?

I am calculating transmission error and contact stress for helical gears, to do this I am using a copy of Cai's stiffness function that I have found. However, I do not have the paper he wrote and...

31 December 2013 1,691 1 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

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 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

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 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

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View