LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View

How to increase the lower detection limit of ELISA?

Hi all, I am trying to establish an ELISA method for the quantification of a recombinant protein injected into mice. In the meantime I am trying to make calibration curves with the purified...

27 January 2021 8,702 3 View

Best glass slides for metal oxide UV-vis and PL measurements?

Hi there, I am currently using Alfa Aesar fused quartz slides for my UV-vis and PL measurements of TiO2, but it seems that their slides emit in the UV around the same wavelength region where I...

19 January 2021 438 3 View

What is the best and most efficient way to conduct a meta analysis?

I have never conducted a meta analysis before, so I was wondering how to approach it. Let's say I wanted to look a how a specific metric has evolved over the past 20 years, for example the...

08 November 2020 8,663 2 View

Longest duration for an experiment involving oral gavage?

Hi, I was wondering what the longest period of time anyone has done an experiment involving daily oral gavage? I have a model that takes 6 months to fully develop and need to begin treatment at...

05 November 2020 6,243 3 View

What organic solvent is silver (I) sulfide not soluble in, and how to unambiguously confirm presence of P-N double bonds?

This is really two questions. I'm trying to convert P-S bonds into P-N bonds using Ag+ to pull off the sulfur, but when attempting the reaction in THF, either the silver sulfide was dissolved in...

17 June 2020 9,066 8 View

Sampling rate in matlab?

Can I know what is the sampling rate of ifft() command which is a build in function in matlab?

01 June 2020 7,937 12 View

Finding Hidden Defect in ceramic sample in matlab?

I am dealing with ' Optimal signal processing of frequency-stepped CW radar data' from the website of Optimal Signal Processing of Frequency-Stepped CW Radar Data I want to find the hidden...

27 May 2020 1,125 12 View

Can Coronaviruses quorum sense?

Looking at the various CoV genomes, there are peptides/small proteins, aside from ORF1/2 on the genome, of which functions are unknown. These could circulate and in theory, once in abundance,...

25 March 2020 5,948 5 View

Where can I buy photodiodes?

Hi there, I'm looking to buy various photodiodes/solar cells for some experiments. The cells I'm looking for are InGaP, CZAS (and CZT) and amorphous silicon. Any pointers to where I could buy...

13 February 2020 2,938 5 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

Does the pressure(-600 mmHg) affects pH?

When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...

03 March 2021 4,892 5 View

Why can't make aluminum nitride film successfully by use sputter?

We use reactive sputtering process to make aluminum nitride film, and want to make c-axis aluminum nitride film on a silicon substrate, but the crystal orientation cannot be seen with...

03 March 2021 7,975 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

Is there any test to determine the cardiovascular risk of patients with obesity? from the perspective of obesity?

We found tests to determine cardiovascular risk taking into account lipid profile, blood pressure, age, history of diabetes, other laboratories. But when weight is involved, there is a paradox. I...

02 March 2021 6,036 1 View