Are there any solutions for remote eye-tracking?

Since with the pandemic it doesn't look like we are going back to the lab soon, in my lab we were looking for solutions to conduct remote webcam-based eye-tracking. I've been looking at...

31 January 2021 7,315 5 View

No title

I was working on thermogravimetric analysis for some materials, however, because of the pandmy I stoped using the STA TG DTA-DSC 1600 for like 6 months, when I was able to work again with it, the...

11 October 2020 3,865 2 View

How to get node label from abaqus using python?

I have a model which includes a surface (lets call it EXAMPLE) composed by faces of several 3d elements. Using python scripting, how can I extract (to a text file) the nodes that are part of that...

22 September 2020 9,489 1 View

Which is the best approach for nucleotide substitution model-testing for phylogenetic reconstructions using RADseq data?

I am trying to infer both maximum likelihood and bayesian phylogenetic trees using RADseq reads. I have already created my sets of radtags using Ipyrad which also I used to export the consesus...

24 August 2020 7,823 8 View

Which inputs and outputs should I add on my DEA Analysis?

I'm doing research on the performance efficiency of different oil companies in the world. It has come to my attention that many scholars use DEA Analysis to measure it. However, it is not clear...

23 June 2020 3,223 9 View

Retention time variability in HPLC columns specific for PAHs analysis?

We are using a Zorbax HPLC PAHs column and we are observing a high variability in the retention time of PAHs, even in one same batch. Analysis is performed in a LC-MS/MS system, ionization source...

16 April 2020 3,444 8 View

Which environmental problems arise from landfill mining ?

Landfill mining techniques arise as one of the available alternatives to mitigate negative environmental impacts from municipal solid waste landfills. High recycling potential generation is one of...

28 March 2020 1,782 10 View

NetCDF in R and Arcmap?

Hi, I have a problem exporting Netcdf from R 3.6.3 to ArcGIS 10.6. ArcGIS does not recognize the file and eventually closes. The problem is solved only using a previous version of R 3.4.4. Does...

22 March 2020 8,086 3 View

How can I make input file for rehh package in R with scaffolds?

I am trying to look for positive selection in the genome of a non-model specie, therefore I do not have chromosomes structure, I just have scaffolds and positions of SNPs in a VCF file. I used...

11 March 2020 3,700 3 View

Why do dispersed nanotubes have more intense peaks in the absorbance spectrum at (approximately) 260 nm?

Is there any physical or quantum explanation for this?

11 December 2019 8,317 2 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

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 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

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Is there any effect of different colours of light (white, red, yellow, blue etc.) on the rate of photosynthesis? If yes, why?

Light is inevitable for the process of photosynthesis reaction. Naturally sunlight plays the vital role for this process. Light may be of different colours like white, red, yellow, blue etc....

02 March 2021 7,890 2 View

The procedure compute?

02 March 2021 5,204 3 View

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View