How do we decide BSA percentage in our buffer solution?

Hi all, I am trying to test my polymer stability in biological medium. I know how to make 1% /5% etc of BSA in buffer but I am not sure how do we actually decide this percentage volume. Is there...

05 January 2021 649 2 View

Prevent contamination of solution in oven?

Hi all, I am trying to test stability of my electrode immersed in solution. I intent to keep them in oven for 3 weeks as to represent accelerate ageing. However, my worry is that the solution...

28 October 2020 8,351 2 View

Original DECLUE python/java/c++ implementation?

Anybody working on DENCLUE/improvements? I need to know about any "working" implementation of simple original DENCLUE algorithm.

25 October 2020 3,471 2 View

Is there an implementation of original DENCLUE available?

Does anyone know of a WORKING implementation of the original DENCLUE density based clustering algorithm, and NOT its extensions? I have explored a few from github but they ain't working.Moreover,...

01 September 2020 8,917 1 View

How to run a long run cointegration with I(0) as dependent variables?

i'm currently working on currency misalignment , i have 3 variables the productivity differential and the NFA, as independent variables and REER as dependent variable, but my REER is unfortunately...

01 January 2020 9,004 7 View

How we can quantify/ calculate the yield of nano particles?

My Project is on nano particles synthesis from biological mass, I synthesized NPs but I am actually a bit confused how to calculate their yield. If some has done with it then guide me on it.

25 September 2019 8,014 3 View

Is10 percent neutral buffer formaline suitable for fixing gut of insect?

want to fix the gut of insect in 10% NB formaline, but read somewhere for some tissues its not suitable.

15 July 2019 330 3 View

Direction in Brent's Minimization of a Scalar?

Hi there, I am trying Netlab for Machine Learning in Matlab. Here i want to call the linemin function which uses Brent's minimization method. The documentation says linemin(F, PT, DIR, FPT,...

10 March 2018 747 1 View

I have made an water-in-oil-in-water double emulsion and I want to measure the size of the microspheres using the zeta sizer, how should I measure it?

I used PCL polymer in DCM oil and PVA solution to make water in oil in water double emulsions but they are solid particles, I don't know how to measure their size using the zeta sizer, since it...

24 September 2017 270 4 View

Do the d orbitals of Zinc and Cadmium involve in bonding with ligands?

Is there any example which has the involvement of d orbital of Zn and Cd with ligands to make bonding? Under which condition d orbitals of Zn and Cd are chemically active and make bonding? Do the...

04 May 2017 8,656 14 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 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

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

Should we reduce the standard unit of length to 0.31951540592 meter ?

The reasoning behind this question is to align the ratios of the proton potential in energy per charge to the speed of light in distance per time. As these two dimensions appear to be related,...

27 February 2021 947 7 View

How can we limit artifacts caused by rotation in fiber photometry?

We are trying to run fiber photometry experiments for long time scales, but we get these sinusoidal artifacts that come up. We think they may be caused by twisting of the fiber optic subject...

25 February 2021 568 1 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 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

No streamlines present in a small region inside a flow. This means exactly what?

No streamlines present means whether the flow is getting obstructed there and the velocity inside the region is zero? Or else, the fluid is trapped inside that region with a nonzero velocity?...

22 February 2021 5,249 10 View