Clearing blocked nanoViper liquid chromatography tubing?

Does anyone have any tips on clearing blocked nanoViper (20 uM ID) tubing in a Dionex 3000 for LC-MS/MS? We're having recurring high pressure errors in our loading pump, and we've isolated it to a...

28 July 2020 3,562 3 View

How does one find constants of the motion for a chaotic flow?

I'm reviewing a lot of papers where the authors take a 3-D autonomous chaotic system (think Lorenz) and add a fourth variable bidirectionally coupled to the other three and then report its unusual...

04 May 2020 3,785 33 View

What is the best method for unsupervised classification of large and multidimensional raster data sets?

We are attempting to generate a landscape classification of a large area using remote sensing data with a 20 x 20 m cell size and an area of 200,000 km2. We have 8 different rasters and want to...

12 February 2020 4,443 4 View

Hierarchical clustering of multiple raster images - is there an R script?

I'm working with a significant number of rasters (.tiff) as part of a landscape classification exercise. First I want to generate a dendrogram from the rasters (maximum of 7 different rasters) to...

25 January 2020 7,327 3 View

Does anybody know an open Matlab code for Facial Expression Recognition with Convolutional Neural Networks (CNN)?

Does anybody know an open Matlab code for Facial Expression Recognition with Convolutional Neural Networks (CNN)?

26 September 2019 1,555 1 View

Is it possible to weight the significance given to a raster during K-means or equivalent classification of raster imagery?

We are using multiple raster layers to produce a predictive classification of the landscape. Statistical modelling indicates that some of the layers we are using for the classification are more...

30 January 2019 5,061 1 View

Pls i need journal articles on rice grading machine?

effect of feed gate opening on the performance efficiency

15 August 2018 9,215 3 View

Troubleshooting ESI LC MS/MS chromatograms--sample contamination?

We are having problems with an ESI LC MS/MS proteomics experiment that are difficult to pin down. Samples were prepared in batches over the course of a week, the first batches worked very well but...

12 July 2016 9,311 10 View

Why do some soils develop poor drainage?

Soils vary in their drainage status. Soil drainage status is a key control over redox and hydrological response. Can anyone explain why some soils evolve towards being poorly drained and others...

01 January 1970 7,673 8 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

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

Dear all, I was wondering if anyone knows whether MGLtools and Autodock can run on Mac OS?

I have tried to download the 64-bit version of MGLtools however, as many times as I have downloaded and uninstall the programs, an error arises that the app needs to be updated. Thank you.

03 March 2021 5,997 2 View

What is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 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

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