How relevant is Mini slump cone?

for all the rheology researchers, my question is, how relevant is a mini slump cone (smaller than a standard 50 cent rheometer). currently based on testing, the thickness of slumped material is...

26 February 2021 3,668 1 View

Can anyone help with an Accurate Diffuser Expansion Loss formula for rectangular shaped diffusers in turbulent flow regime?

I have tried Idelchik's Handbook of Hydraulic Resistance 4th Edition (2007 page 300) formulas and across some range the formulas are reported valid for, the law of conservation of energy is...

20 February 2021 2,504 1 View

No title

In a physiology textbook treatment of reproduction, they describe the Corpus Luteum as yellow as a result of the color of cholesterol. Yet, pure cholesterol is white, and has no structures that...

15 November 2020 7,398 3 View

Anyone written or used code to do numerical integration of borehole curves?

Just learning Matlab and know a little Python. I have some borehole curves, trace element data in ppm and I want to estimate the volume of of the element over a depth interval using numerical...

28 March 2020 9,572 3 View

Viral load hand washing: why not twice instead of once for 20 sec?

Why isn't washing twice a recommendation? When you do an extraction, say of lipid fractions into organic solvent, or really any separation, the increase multiple times is far more effective than...

18 March 2020 5,600 3 View

In which salt's 0.5 Molar aqueous solution at 35 degrees Celsius would Ammonia gas at 1.4MPa have the least solubility? NH3 Molality at 14 or below?

Looking for the salt with the greatest ability to effect the release of Ammonia gas from aqueous ammonia at a pressure of about 1.4MPa (i.e. salt not precipitating out of solution) and at a...

23 February 2020 4,530 3 View

What is the best statistical method to use for analyzing a questionnaire given multiple times?

For clarification, I am doing research on asynchronous mathematics video collaboration between students of different countries. In order to measure this, I designed a 20-some question survey using...

28 January 2020 3,605 3 View

How to find correlation between likert scale and categorical variables?

I am doing a survey regarding people's awareness on fire safety. In Part I, I gather information like gender (2 categories), education levels (5 categories) etc. In Part II, I set 9 questions...

29 December 2019 4,308 3 View

Any methods to make activated carbon and sand into a non-segregating mixture?

just wondering if there are any potential methods to make activated carbon (either granular or powdered) and sand into a non-segregating mixture? open to suggestions.

25 September 2019 284 3 View

Scheduling algorithm for mult-users tasks in a fog / cloud environment?

We consider a 5G architecture consisting of 3 layers: the cloud layer, fog layer and an edge layer (user layer). Our goal is to set up a scheduling algorithm that involves joint processing of...

02 May 2019 1,366 3 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

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View