When is it unnecessary to change organisational culture?

As a former management practitioner, I recall a generally accepted view that changing organisational culture is difficult, so you should only attempt it if the organisational change that you are...

27 February 2021 2,595 8 View

What software/app can I use to generate annotations for localizing hand joints in an RGB image?

I wanted to know if there is any software/app that helps to easily annotate hand joints in an RGB image manually.

28 October 2020 9,693 3 View

Are there any mice that express rtTA (Tet-on) in the brain and spinal cord when given Dox?

I am looking for a Tet-On Tg mouse in which rtTA is expressed in the brain and spinal? I cannot seem to find any a JAX Labs and I wonder why? All comments welcome.

29 August 2020 766 1 View

What is the alternative method to centrifugation to remove acid residues from sediments during carbonate removal process?

I am removing carbonates from clay and sand samples. So, I treat the sediments with H2O2. I need to wash the sediments to remove acid residues. I am thinking of heating the sediments with...

06 December 2019 5,057 6 View

Why are the background values hampering when mosaicking bulk images?

Hi all!! we have been encountering the following issues while mosaicking multispectral data: while mosaicking 4-5 or more scenes/tiles, the background values are either 0 or 255 of the mosaicked...

26 August 2019 5,496 3 View

What column should I use to analyse CO2 reduction products?

Hi, I currently have a HP 6890 GC equipped with an FID and DB-624 column. I am upgrading the instrument with a gas sampling loop and a TCD detector. I plan to use the FID to analyse short chain...

02 March 2019 9,871 2 View

Can we consider 14 dB axial ratio as linear polarization for practical purposes? If not , what is the standard norm if any for practical purposes ??

Theoretically the axial ratio of linearly polarized antenna is infinity. But practically it is not possible. So, is there a practical/industrial norm for differentiating elliptically polarized...

26 February 2019 9,438 5 View

For LoS communication the transmit and receive antennas face each other. If the transmit antenna is vertically polarized,,what about receiver antenna?

30 January 2019 989 3 View

How do I calculate distance between (or precisely the mobility) of a single residue at different timeframes in the trajectory?

Hello, I hope everyone is doing great. I want to calculate distances traveled (from its initial position) by a single amino acid residue at various time frames in the trajectory. To be precise...

24 June 2018 7,723 8 View

How to obtain Clay % from Fine content (silt+clay) % using empirical formula?

Dear all, I have calculated Fine content (Silt+Clay), Liquid Limit, Plastic Limit, Plasticity Index, Mean grain size, SPT value for soil samples. I need to obtain Clay % for my study. Kindly...

13 January 2018 2,502 8 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

Anyone know of a good progesterone antibody?

I am looking for a good progesterone antibody to quantify levels of progesterone in zebrafish. Applications would be ELISA, and immunohistochemistry.

28 February 2021 5,929 2 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