2D implementation Optical Microring Resonator using COMSOL Multiphysics ?

Hi ! Good Evening to all :) As of Im doing my research in photonic studies particularly in study of Optical Microring Resonator of 2D implementation by using the COMSOL Multiphysics 5.5 , I...

12 May 2020 5,524 1 View

How do I perform CFD analysis of a dialysis needle puncture into the arteriovenous fistula (AV fistula)?

Hi, I'm trying to find out the velocity, force and pressure of the blood flow as it enters the needle during the puncture of the AV fistula. It could be a 14G needle for example.

26 August 2019 7,032 2 View

Does drying organic extracts under the fume hood changes its nature?

Hello guys, I am extracting leaves and roots from 2 different plants by using maceration method (organic ext- Chloroform: Methanol). I did rotary evaporated my samples and they tend to have...

21 October 2017 4,810 4 View

Partial growth of B. subtilis?

Hello guys, I am currently doing antimicrobial work with plant extracts using disk diffusion test from Cucurma caesia and Pandanus amaryllifolious, both aqueous and organic extracts with different...

01 October 2017 8,978 3 View

Dissolving Plant Extract in 4% DMSO and Sonication?

Hello guys, Currently i am having problems of dissolving my solid organic extracts in 4% DMSO. The organic extracts were prepared and extracted using Choloform:Methanol (1:1) and treated under...

19 September 2017 1,353 3 View

Freeze Drying Vs Vacuum Filtration of Plant Extract

Hello guys, currently i am doing a project on antibacterial effects of Pandanus amaryfollious (leafy parts) and Cucurma caesia (Legume parts). I have both aqueous and organic extracts of the plant...

09 August 2017 6,203 3 View

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01 August 2017 8,079 6 View

Calculation for miRNA expression level

Hi, I have treated breast cancer cell line (MCF7) with miRNA mimic. I want to calculate the fold change of miRNA expression between untreated and treated cells. However, the Ct value of miRNA in...

02 January 2017 5,196 3 View

What are the calculating methods and computing problems for DNS turbulence for high reynolds number?

I'm looking for the calculation methods for DNS for high reynolds number turbulence and what can we do to calculate even higher reynolds number.

04 October 2016 5,104 5 View

Is it better to use rochelle salt before or after the addition of the DNS reagent?

In case of using crude enzyme samples, which we knew the properties of the crude enzyme is not pure and heterogenous. Is it better to use the DNS (with rochelle salt before) or use the DNS reagent...

08 March 2015 9,756 4 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 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

Should we change media after1st 6hrs after plating HUVEC bought from INVITROGEN?it's not recomended by invitrogen.Will DMSO present in stock matter?

We have HUVEC bought from Invitrogen. Cat no -C-003-5c. while first plating the cells we have bought the protocol suggests not to centrifuge the cell with media to remove the DMSO. Should we...

02 March 2021 3,713 2 View

How to normalise data on OPM package from R Studio ?

Good afternoon, I recently used OmniLog from BIOLOG for my experimentations : I tested the metabolism of different strains on 2 types of plates. I have 16 strains of 3 different groups...

02 March 2021 3,584 1 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

Sutter electrode holder leaking after applying positive pressure. How to fix?

I am using a Sutter electrode holder for my patch clamp experiments, but I'm having trouble keeping positive pressure inside my electrode due to a leak out of the back of the holder. I have added...

02 March 2021 5,829 1 View

What thickness need for ITO to use as conductive layer?

I want to do RF sputtering of ITO on glass substrate using magnetron sputtering. what thickness do i need to make it good conductive layer to use it for PSC. Moreover, whats about thickness of...

01 March 2021 395 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

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View