What is the best way for synthesis of 2',4-dihydroxychalcone?

I'm trying to synthesize 2',4-dihydroxychalcone using 2-hydroxyacetophenone and 4-hydroxybenzaldehyde. I've done several sythesis but all I get was some kind of oil and no precipitate of product...

03 April 2019 6,167 4 View

Can you use a t-test instead of an ANOVA in a multi-factorial design if you're interested in only one comparison?

25 February 2019 9,243 4 View

Does HRV-3C protease cleave TEV cleavage site?

I have heard some rumors that the HRV-3C protease can recognize and cleave ENLYFQG peptide, which is a consensus sequence cleaved by the TEV protease. Can anyone confirm or suggest some literature...

23 July 2018 1,321 4 View

Are there any wide-spectrum kinase inhibitors?

I wanted to analyze the phosphorylation of a certain mammalian protein. It is a standard procedure to add phosphatase inhibitors to extraction buffers to block the process of dephopshorylation....

12 March 2018 8,978 4 View

What book/article would be a good introduction into artificial neural networks?

Hi, I'd like to learn more about artificial neural networks, specifically pattern recognition algorithms. Unfortunately, I don't have much of a background in mathematics, so I'm looking for...

26 December 2017 4,850 2 View

Best tool for generating topology of polymer brushes (MD)?

17 September 2017 7,160 1 View

What is the resolution of ion-exchange chromatography?

Dear all, I would like to ask what is the maximal achievable resolution of ion exchange chromatography in the matter of pI values. In particular I am wondering whether I will be able to separate...

11 October 2016 5,605 3 View

Software for load path optimized structural design of fiber reinforced materials?

Which software would be most suitable for carrying out a load path analysis of an existing part, such as an aircraft wing structure, and subsequently doing a topology optimization of that design...

09 August 2016 874 1 View

What are the best 3 different reporter proteins as fusion partners for structural studies?

07 July 2016 5,040 2 View

Which one of databases do you recommend to explore validated targets for miRNA categorized by disease/metabolic disorder?

24 November 2014 8,772 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

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

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

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

Do you know any MR image dataset?

I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.

02 March 2021 7,735 3 View

How can you bring two structures together to create an adhesive bond in LAMMPS?

I have created an Ice 1h crystalline structure and an Aluminium substrate structure and equilibrated both at 250K. Now I need to bring them together in a way that an adhesive bond is created....

01 March 2021 3,325 2 View