How do wood moisture meters function when applying on live trees?

Eleven months ago I girdled 17 trees and measured the moisture content, at the place where they had been girdled, with a wood moisture meter. Typically, the moisture meter showed a reading of...

26 December 2020 7,761 2 View

Statistical test: 1 nominal independent variable and 1 dichotomous dependent variable?

I have a dataset with one nominal independent variable with 10 different levels and one dichotomous dependent variable. What would be the appropriate statistical test to compare the different...

09 December 2020 8,834 29 View

Where can I find a more pure source of trichloroacetic acid (TCA)?

I am analyzing nucleotides from TCA-precipitated cell extracts by HPLC coupled to UV detection (270 nm) and there is an interfering peak coming from the TCA itself. I have tried some sources of...

07 June 2020 387 4 View

WIll conservation of impulse from weight drops on floors with mats lead to a higher low frequency vibration level in the floor slab?

Weight drops generates vibrations in the floor they hit. Impulse mdv must be conserved, even if the floor or mass is cushioned with mats. Cushioning leads to less high frequency content in the...

17 February 2020 9,807 3 View

How can ion pairing agents cause peaks to split?

I have previously made a lot of nucleotide analyses with tetrabutylammonium as ion pairing agent but decided out of curiosity to try primary amines instead and then made a strange observation. One...

03 October 2019 6,864 13 View

How does the solubility of the buffer in the stationary phase affect resolution in ion-pair RP chromatography?

I analyze nucleotides with tetrabutylammonium ions as ion-pairing agent on a C18 column and I have made an observation that the resolution of the peaks often decreases when I use buffers that I...

27 August 2019 2,030 1 View

How do I know that the fittings in HPLC are optimal?

I usually do not get as high plate numbers as claimed by the manufacturers and been thinking about how I can know if the fittings (nuts + ferrules) are perfectly seated or not. I have used ACE and...

16 July 2019 5,867 15 View

Bottle but not textile PET recycling - why not?

PET bottles are conveniently recycled into fibres by remelting and spinning. How come there is no fibre-to-fibre polyester recycling by re-melt-spinning? Is it due to degradation by i) hydrolysis...

24 June 2018 9,771 14 View

Whole mouse spinal cord immunolabeling in embryos/neonates. Easy?

Dear fellow scholars, We have a mouse line with eGFP and tdTomato labeled axons going from the brainstem to the spinal cord. We are going to clear the spinal cord (using iDisco) in embryos and...

21 March 2018 367 2 View

How to accelerate multiphase CFD model in ANSYS?

My research group is working on some multiphase CFD simulations (non-reacting 2-phase flow). We currently have a multiphase model set up in ANSYS with 1M node mesh and 0.02 time-step-size and...

08 February 2018 4,950 13 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

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 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

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 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'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

I got 02 moderator values defining Johnson-Neyman significance regions. Is it an error?

Hi everyone, I am conducting research for my Master's thesis. I am using PROCESS by Johnson-Neyman to analyze my Moderator model. I test the relationship between Public Service Motivation and...

03 March 2021 2,350 2 View