What is the relationship between soil pH and adding alkali-activator?

Dear all, I do research on a kind of clay and use NaOH as an alkali-activator for stabilization. The pH 2,4,6 mol. of NaOH solution are 12.9,13, and 13.1, respectively. The pH of natural soil is...

09 October 2019 3,813 2 View

What software do you recommend for plagiarism checking?

Dear all, What software do you recommend for plagiarism checking of technical papers? Regards MJM

09 October 2018 613 13 View

Why Acid treatment is done for biomass ashes activation?

Dear All, We know that acid treatment usually done for biomass ash (like Rice husk ash) activation. According to the some researches acid treatment (by some acids like HCL) increases specific...

08 September 2018 7,251 0 View

How long does it take to publish a paper?

Dear all, Does anyone know an address that shows How long does it take to publish a paper?? However, there are some in Elsevier ( https://journalfinder.elsevier.com ) and Springer ( Springer...

06 July 2018 4,577 18 View

What is the best temperature for producing ashes??

Hi everyone, I want to know what is the best temperature and duration for producing ash from agricultural waste?? regarding that I want to use it as Alkali activator for clay stabilization....

10 November 2017 6,507 4 View

Which dissolved ash has the most pH??

Dear all, As it is known, the pH of distilled water increase with dissolving ashes in it. It is because of some metallic oxides contents like NaO, k2O, etc, of the ashes. So, I want to know which...

10 November 2017 1,183 6 View

What is the best technique for lowering the concrete temperature in hot weather??

Hi everyone, We have to pour concrete in temperature of about 40 degree Celsius. does anyone have good technique for lowering the temperature of concrete?? We lower the temperature to near 32...

06 July 2017 9,592 3 View

XPS technique for introducing bonds between stabilized clay?

Hi every one I want to know if XPS (X-ray photoelectron spectroscopy ) can be used to introducing bonds between chemically stabilized clay?? Regards

01 February 2017 1,350 4 View

Reinforced Wall for fine soils?

What is the most effective way to Reinforced fine soils like clay ? for example could strip reinforcement used for fine soils??? As reinforced walls should be backfilled with coarse materials like...

08 September 2016 5,409 4 View

How to measure matric suction in unsaturated soil??

07 August 2016 9,719 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

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 to calculate BREQ 3 questionnaire?

how to calculate BEHAVIOURAL REGULATION IN EXERCISE QUESTIONNAIRE BREQ 3 ,which contain 24 questions and each question has 5 answers (0- Strongly disagree , 1-disagree, 2- Neither agree nor...

02 March 2021 811 3 View