Is there any tutorials (examples ) available to learn or run mvapack package for metabolites study ?

how is mvapack package more suitable for metabolites ?

06 July 2016 9,252 0 View

What are the methods to confirm a laser beam has a continuous or pulsed nature ?

by seeing naked eye can we think, what is the behavior of laser beam ?

11 December 2015 783 12 View

Why we need Green function in electrodynamics ?

by using Green function , the problems become easier or complicated ? what are the applications to use this Green function ?

09 October 2015 431 4 View

What are the fundamental differences in classical electrodynamics and quantum electrodynamics ?

how we can correlate them ?

08 September 2015 7,836 8 View

Is it possible to achieve population inversion when you have no cavity in laser system?

I want to ask about random lasers in which there is no cavity, so how we can achieve population inversion for lasing action ?

08 September 2015 4,639 12 View

What are the random lasers ?

06 July 2015 3,015 2 View

Why are s to s transitions allowed in He-Ne laser ?

As the atomic selection rules says that s to s transitions are not allowed i.e. there must be a change of the angular momentum ?

04 May 2015 6,347 5 View

We have a mirror. How can we identify which are the coated and uncoated sides by using a laser ?

When we shine a laser beam to the both side of the mirror (silver coated and uncoated), I am not getting fringes. How can we recognise both the surfaces? Is there any problem with my technique ?

04 May 2015 7,010 18 View

What are the differences between femtosecond, picosecond, nanosecond and millisecond laser ablation ?

03 April 2015 3,168 6 View

Why we need to generate femto and attosecond laser pulses (as we have nano and microsecond order pulses) ?

what are their (femto, pico second pulses ) advantages over nano pulses.

03 April 2015 1,996 6 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

Has anyone used the Illumina ITS1 primer sets?

Hi everyone, Illumina provides a list of primers to amplify with high taxonomic coverage the ITS1 region for further fungal sequencing, but I cannot find the exact amount necessary of each...

25 February 2021 6,969 3 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