What criteria do you have in mind while characterizing a scientific theory?

I hesitate a lot before raising the question just mentioned. As RG is mainly a scientific forum, it is natural that the concept of theory appears in many posts from many posters. But what are...

25 October 2020 7,643 34 View

What is the (average) DNA yield (ng) from one single nematode?

Do you know where I can found published information about DNA quantity (in ng) from one single nematode? Any publications/books to suggest me? I Know it seems a simple and basic information, but...

31 March 2020 6,710 1 View

Could someone suggest a research structure on practices of reverse logistics in organizations and companies?

28 June 2016 213 2 View

Detailed explanation of the following design process of HVDC system?

This is a slide that does not provide details of the design processbut I can make myself some idea of this process , I want your view to clarify my ideas

19 April 2016 3,538 3 View

Cell culture 3T3-L1 adipocytes. I can grown in DMEM medium with or without pyruvate pyruvate?

cell culture 3T3-L1 adipocytes. I can grown in DMEM medium with or without pyruvate pyruvate? please... help

03 March 2016 1,886 3 View

Given a new user in a network, how can we find his/her actual publications in DBs?

Imaging we have a research social network whatever, and we have a new user who only fills out his name, affilation, title and location. We face the problem of associating this user with his/her...

30 September 2015 6,121 3 View

Does somebody know the best Western Blot protocol for E6 HPV16 with Anti-HPV16 E6 + HPV18 E6 antibody [C1P5] (ab70) (abcam) and PVDF membrane?

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24 March 2014 584 1 View

Sites for exchange of skills or access to equipment.

Does anybody know if there is something similar to this but for UK based labs? https://www.scienceexchange.com/welcome

12 February 2013 9,383 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