How does the N value be counted for gut content analysis?

I read some articles on mollusc and fish diet analysis. The formula for percentage frequency of occurrence stated above: %F0 = Nei/Ne x 100 and percentage numerical abundance : %NI : Ni/N x...

15 October 2020 4,568 3 View

Why is it necessary to vortex and incubate in dark the sample and DPPH solution and other DPPH questions?

Hi all, In the determination of Antioxidant capacity of fruit samples, I used DPPH assay and have a few questions regarding the DPPH assay 1) why is it necessary to vortex and incubate in dark...

30 August 2020 246 3 View

How to renew the Scopus index status of a journal?

Dear Researchers, Our journal (ISSN no. 2070-4658) was part of the Scopus index till 2017. Now, it is not in the Scopus index as the last two years no issue has been published. However, the...

24 August 2020 7,203 3 View

Hello,i extract my plants using rotary evaporator and i got crude extract.How should dilute it?i have no idea on how to dilute it?Can someone helpme?

dilute it in ethanol or dmso? which solution is better as i used 95% of ethanol as my extraction solvent?

23 March 2020 5,971 6 View

Can I set "20 uL reaction volume" in PCR cycler machine, while my actual sample is only 10 or 15 uL?

This is a stupid but quite technical question. We have a PCR machine that has 20 uL minimum reaction, so it can't be set into 15 or 10 uL in the machine. Is this going to affect the result...

22 March 2020 3,497 4 View

How to test degree of polymerisation of aged kraft paper impregnated in oil?

kraft paper was impregnated in mineral oil at different temperatures and duration. my project is to get the DP value at different duration. in order to be measured by viscometer, the sample must...

20 January 2020 2,234 3 View

What is the equation to explain how one possible organic side product is formed in the synthesis of 1-bromobutane?

And show the chemical properties window of this side product. Explain how this product can be separated from the desired product. I have already identified that the possible organic side products...

29 December 2019 6,170 4 View

Validation for Intracerebroventricular Microinjection of Streptozotocin in Rats?

Hi, I'm planning to induce sporadic Alzheimer's disease (AD) in male Sprague Dawley rats (3 months old, 270-350g) through bilateral intracerebroventricular microinjection of 3 mg/kg streptozotocin...

25 November 2019 9,723 3 View

What is the meaning of negative activation energy?

I am prepared (Al, Co) co-doped TiO2 thin films by spray pyrolysis technique. The electrical measurement was performed by the four-probe point method, in the range of temperature 3ok (Room...

22 October 2019 526 4 View

Can waterbased acrylic emulsion cause corrosion?

I've purchased a waterbased acrylic emulsion to be used on metal. However, after applying this coating on my carbon steel, the steel corrode immediately. I've been doing some reading and...

21 October 2019 4,790 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

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

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Which is the most convenient manufacturing software for Additive Manufacturing?

Which tools can be used to generate machine codes for additive manufacturing?

02 March 2021 7,220 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