How to evaluate the bio-degradability of a water-based cutting fluid?

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1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View

Why does the testosterone dissolved in dmso and methanol turns into a white dispersed precipitate when subjected to serum free media?

1mg of testosterone is dissolved in 20 microlitre of DMSO and Methanol respectively. The interpretation showed a positive result. However, when 1 ml of serum free media is subjected to the...

27 January 2021 8,213 1 View

After G actin polymerization and labelling I didn't got filaments. Why?

Purified G actin and got 42kda band and an additional band just below it. While performing G actin polymerization and labeling with rhodamine-phalloidin I didn't observe filaments under the...

20 January 2021 3,751 2 View

What all factors do we have to consider to interpret cytocompatibility of a nanomaterial from Actin DAPI stained images of HOS cells cultured with it?

Phalloidin stained filaments and dapi stained nucleus

08 December 2020 8,548 3 View

Will there be any changes in pcr result if one uses same dna with same PCR conditions and same pcr forward and revwerse primer after 10 months??

Actually, I am doing pcr for Kleb.pneumonia gene. I have did pcr of 90 samples initially and all were positive at that time. But now again when i am repeating the pcr for those 9 samples with same...

20 October 2020 4,383 11 View

How do different slots on patch helps in increasing the bandwidth of an antenna?

antenna designing

15 October 2020 1,788 4 View

What is the mathematical model of antipodal antenna design?

what is the mathematical expressions and equations used for the designing of antipodal structure of an antenna.

26 September 2020 7,948 3 View

Culturing of PANC-1 cell line?

I have ordered PANC -1 from Atcc. Upon plating them, the cells are taking around 4-5 days to reach 60% confluency. However, by end of 5th day , the background is becoming blurry with what seems...

15 March 2020 9,990 3 View

Can you consolidate a 5-point Likert Scale to a 3-point Likert scale for analysis?

Hi, I am a novice, first time researcher who started a research project with very little experience in designing questionnaires. My survey consists of 5 parts or sections with each section having...

19 February 2020 4,160 3 View

Is it possible to do CV, LSV studies in 3 electrode system for solid polymer electrolytes?

Can anyone help regarding ELECTROCHEMICAL STUDIES will be able to perform in 3electrode system for solid polymer electrolytes. As we are preparing solid polymer electrolytes combinations of two...

16 December 2019 7,271 2 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

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 increase mesh quality of a cfd model in ansys fluent?

How can one improve mesh skewness, orthogonality, aspect ratio?

28 February 2021 7,730 3 View

No title

I am trying to find how to know the density needed for a pva electrospinning in a 0.6mm neddle, the electrospinning will be from top to bottom and the problem I really have is the solution because...

25 February 2021 2,615 3 View

Why do the air flow results vary totally when adding scalar in CFD ?

Dear All, We are using Autodesk cfd to calculate the air flow in a single sided naturally ventilated room, where air flow depends only on buoyancy due to temperature difference between inside and...

25 February 2021 9,602 4 View

Is the a way to contol flow (Flow velocity) without impacting pressure value?

I have a pipe with 10 mm in Diameter and 2 bar pressure, the fluid velocity is 200 m/s, the fluid is air. is there a way to reduce velocity without affecting the pressure value?

25 February 2021 7,187 3 View

How do you mesh a thin solid in Fluent?

Hello, I have used the shell function on SpaceClaim to create thin solids for the model I am studying. These are contained within an enclosure for my study. I chose this approach as it avoids the...

24 February 2021 8,856 3 View