Transformation of Bacillus subtilis?

Colonies appeared after transformation of pHT01 plasmid into Bacillus subtilis, and band was confirmed by performing colony PCR. However, if the colony is picked and grown (in LB+antibiotics) and...

27 October 2020 609 4 View

I keep getting an error for GEOPIV on Matlab?

When doing the geoPIV_RG_run, i keep encountering this error. Error using dataread Trouble reading floating point number from file (row 1, field 2) ==> Dynamic Load Test Free Vibration Error...

20 October 2020 10,004 2 View

Is it possible for a gas absorption reaction be first diffusion-controlled at low loading, then turns kinetic-controlled?

It's about CO2 absorption with MEA in miniscule volume. And would a pseudo first order reaction assumption still be valid if there is no mixing and agitation?

19 September 2020 1,616 1 View

Is receiving a review invitation of a paper that has already in the second revision normal?

I am new to the "reviewer world". I received an invitation to review a manuscript for one of the open access journal from IEEE. When I download and open the manuscript, I realized that seems...

20 May 2020 316 13 View

Colour of Methylammonium Iodide (MAI) in Isopropanol (IPA, 99.7%) turned slightly green after storing some time?

Has anyone observed the changes of colour of MAI in IPA to slightly green-ish after storing some time? I might have to prepare fresh solution again if this is abnormal. Could anyone verified the...

18 April 2020 7,504 1 View

How to connect Newport's Keithley SMU to perovskite solar cell to measure efficiency?

I have 4 crocodile clip wires, if I'm not mistaken 2 wires (red) connect to anode and the other 2 black wires connect to cathode. Both pairs of wires are plugged at the back of the SMU. Problem...

16 January 2020 3,000 2 View

Can I use Phillips Halogen Lamp (70W) to access the light stability of perovskite solar cell under ambient air condition?

We only have 1 Newport Xenon Lamp for PCE measurement. Is halogen lamp a suitable substitute for the Newport Lamp? We don't have the money to purchase another one solely for stability testing. If...

07 November 2019 5,294 6 View

Weighting Methylammonium Iodide in ambient air with 40-60% humidity for perovskite precursor preparation?

Hi, i would like to know will the humidity (40-60%) of the room be detrimental to the MAI powder when weighting on the analytical balance? is the moisture sensitivity reduced when MAI is quickly...

25 June 2019 5,689 4 View

Determining the amount of HAuCl4.3H2O sticking on glass vial inner surface?

Since HAuCl4.3H2O (gold precusor) is very expensive, it is best to utilized it as much as possible. I have a glass vial that contains such gold precursor. Some of it are spread onto the inner...

28 May 2019 9,890 3 View

How to oxidize titanium layer sputtered on FTO glass to anatase to act as blocking layer?

I have sputtered a layer of Ti on FTO and was hoping to perform anodization on the sample to obtain TiO2 nanotube. However, when semi-transparency is achieved, the TiO2 nanotube peeled along with...

16 March 2019 3,684 4 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 to access MSCI KLD Stats and Sustainalytics?

Hello all, I'm currently working on my undergraduate thesis and I'm having difficulties trying to access KLD Stats and Sustainalytics because my campus Airlangga University and apparently other...

02 March 2021 8,525 1 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View