Does anyone know the pH-differential method?

I use the water method to extract the anthocyanidin from Peristrophe bivalvis (L.) Merr leave, then dilute 20 times with 0.025M potassium chloride, pH1.0 and 0.4M sodium acetate buffer, pH4.5...

20 January 2021 8,305 4 View

How to solve Abaqus, Socket error: [Errno 10061] No connection could be made because the target machine actively refused it?

Dear Everyone, After submitting the job in Abaqus software and waiting 24 hours for running. The Abaqus automatically exited with a report that "Abaqus/Analysis exited with errors Socket...

19 December 2020 6,336 3 View

How can I find data of Kc (crop coefficients) for durian trees?

Hello, I have a question to ask about Kc (crop coefficients). How can I find crop coefficients (Kc) of durian? If there is no published data, is there any affordable method to replace Kc in ETc...

18 December 2020 3,388 3 View

How to determination of available silicon in fertilizer by UV-Vis?

Hello everyone! I have a problem with when the determination of available silicon in fertilizer by UV-Vis. I do that following method A 5-Day Method for Determination of Soluble Silicon...

10 November 2020 1,370 10 View

Factors affect the solubility of cyclic oligomers?

Hello everyone, please help me. Recently, I am making cyclic oligomers of Poly(1,4-cyclohexylenedimethylene terephthalate), and the oligomers are only soluble in Trifluoroacetic acid while the...

27 August 2020 7,160 3 View

How to remove Coffee-Ring effect in microfluidic paper-based to determination of nitrite?

Hello all together, when I study microfluidic paper-based to detemination of nitrite, coffer-ring effect is my problem but I don't know how to do that to stop. I have attached the image...

30 July 2020 3,184 2 View

How to obtain clear Ru 3d5/2 peaks?

I am trying to obtain Ru 3d XPS spectra of samples with RuO2 content of 0.1 ~ 0.3%. But due to the overlapping of the C 1s region and maybe the low content as well, the Ru 3d5/2 peak was almost...

22 July 2020 7,789 4 View

Any recommendation for PhD research topic in consumer culture?

Hello everyone, I am stuck with my PhD proposal ideas. I want to focus on globalization and cosmopolitan consumers. I would be very appreciate if you can provide me some key papers and suggestion...

24 March 2020 8,227 3 View

Configuration of HPLC system ?

Dear all, Does there anyone know how to configure the HPLC system? Our Waters HPLC instruments (Waters pump 1525 and PDA 2998) don't occur in the list of Waters DHCP server configuration even we...

07 January 2020 4,636 2 View

Could you suggest ways to improve the strength of a generated monoclonal antibody? Can we clone mAbs from infected host animals such as cows,.. ?

Dear everyone, We generated mAbs via hybridoma systems. The mAbs show high antigen binding affinity and specificty. However I still wonder what is the best way improve the strength of the mAb? To...

26 November 2019 5,914 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

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 can the use of Jolly Phonics improves the quality of reading, speaking and writing in rural disadvantaged communities in Papua New Guinea?

Jolly Phonics reading program is an effective way to teach early reading to young learners. How can lectures at the university prepare early childhood student teachers to teach Jolly Phonics to...

03 March 2021 3,731 3 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

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

Good sites to recruit survey participants on a grad school student budget?

Any good recommendations for participant recruitment for online surveys on a grad school student budget?

02 March 2021 4,293 4 View

Which SAR dataset to use for generating coherency matrix and performing target decomposition (Description) ?

Working on chandrayaan-2 DFSAR data, there are three datasets available: 1) Slant range image data product: The slant range complex image file. Each pixel is represented by two 4-byte floating...

02 March 2021 8,481 3 View