Is there any ingredient I an add into formula to slow down gas generation from Vitamin C?

I know Vitamin C is unstable and tends to be oxidized quickly. The problem here is I made a Vitamin C beverage at pH 4-5, and it starts to generate gas in the packaging, especially at high...

13 December 2020 6,055 1 View

Do you have experiences or publications on the nonlinear vibration analysis with Rayleigh-Ritz method?

Our research is turing to nonlinear vibrations of plates and solids of acosutic wave device strcutures. It is high frequency vibration, and associated phononmena can only be considered with...

01 December 2020 4,315 4 View

How can purify amount of ssRNA except gel purification?

06 October 2020 6,771 3 View

Low yield with HCl in chalcone synthesis: Why?

Hello, I can't understand why a low yield is obtained with the use of HCl in aldol condensation in acid catalysis for the synthesis of hydroxychalcone.

28 July 2020 7,853 5 View

Shutdown of the BESA Research 6.0 when I apply the 'Automatic Artifact Correction' to correct artifacts of eye blinks in an 8-channel EEG data.?

Thank you for taking the time to read this. I have an EEG data recorded by an 8-channel wireless system. I want to correct the artifacts of eye blinks using the 'Automatic Artifact Correction'...

06 February 2020 4,744 1 View

What is the most recent agricultural model for grape/berry yield prediction?

Dear all, I am trying to create a machine learning model for grape/berry yield prediction based on some agricultural model, so would be great to hear any suggestions in relation to this area....

14 January 2020 9,008 5 View

How can I calculate band gap of nano metal particle?

I'm studying for nano metal particles. The metal particles diameter is about 5nm. And the particles are stuck on nano wires through UV irradiation. I mean the nano wires are soaked in metal...

08 January 2020 8,807 6 View

How to write a bus signal to workspace in Simulink?

I am facing a problem in Simulink. When I want to write a bus signal to workspace in Simulink, I fail. The next time I use a bus selector to select some signals in the bus and then write into the...

06 January 2020 10,036 3 View

Parameter output in spss for plum procedure, ordinal regression?

my version 26 of SPSS for PLUM ordinal regression, produces an output of parameter estimates that indicates the location but uses categorical codes. My predictor is categorical with four levels,...

19 December 2019 1,232 3 View

Does anybody have a CIF file of psudo-hexagonal phase of Nb2O5?

I need the cif diffraction data file for Nb2O5. The specification for this compound are given below: Chemical Name: Nb2O5 Crystal Structure: psudo-hexagonal a:3.607 b :3.607 c:3.925 I cannot...

02 December 2019 8,756 3 View

What is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 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

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View

How can I integrate a routing protocol in a tiny device (e.g. Raspberry Pi)?

Hi Community, I'm facing the issue of integration/compiling a new routing protocol in a WSN simulator. The final goal is to successfully add, configure this routing protocol in hardware devices...

01 March 2021 9,332 6 View

Joint behaviour in Abaqus is not captured well?

I am working on roof joint and trying to simulate the behaviour in Abaqus. I am successful in running the model but the final graph does not follow the experimental curve in the negative direction...

01 March 2021 6,661 3 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View

How much pressure we can reduce at the outlet to avoid Reverse Flow?

I am simulating Heat Exchanger. I have tried and tested all the methods to resolve this issue from the internet like refining mesh, improving skewness and orthogonal quality ,extending outlet to...

01 March 2021 6,985 3 View

How to show arrows over the streamlines in CFD-post?

I follow this to make streamlines like the photos attached below: (software- CFD post-processing) First I plot the 2D streamline over a surface "streamline 1". them I plot a vector by the...

01 March 2021 8,668 3 View

How to address this issue in the analysis of Real-Time PCR results?

To dear Researchers, I was analyzing a series of concentration for estimation of Real-Time PCR efficiency. The concentration was 1:10. I used MS-excel to evaluate Slope. The result of slope was -8...

01 March 2021 8,683 4 View