How can we check black oxidized bearing thickness?

black oxidized bearing has few micron black oxidized layer. how can we measure thinness of this layer?

09 October 2018 1,468 0 View

Can we measure hydrogen in steel by XRD?

It is obvious that we can use XRD to measure residual stress. but I would like to know that: Is there correlation between hydrogen embrittlement with FWHM? Thank you in advance for your help.

05 June 2018 7,837 4 View

How we can measure trace elements in Alloy steel?

Ti, O, Pb, S, Al, and Ca elements in steel must be less than 50 ppm. How we can measure it in a real samples (not in the range of mg)?

09 October 2017 2,938 3 View

Polyethylene-glycol (PEG) optical properties?

Would you please tell me about light absorption of PEG? does it have light emission properties? by which mechanism?

05 June 2016 3,322 2 View

How to determine amorphous content in a mixed powder with MAUD software?

02 March 2016 6,003 7 View

Phase transition of silicon dioxide on the nanoscale?

Phase transitions are well established for bulk silicon dioxide. But I would like to now increase of the surface area and go to nano structures. These phase transitions are stable or for instance...

05 June 2015 6,231 7 View

Time temperature transformation diagram (TTT) by Thermal analysis. Would you please help me to find methodology?

I would like to obtain time temperature transformation (TTT) and / or continuous heating transformation (CHT) diagrams by Differential Scanning Calorimetry (DSC). As it clear by DSC we can...

09 October 2014 1,782 10 View

What was the previous name of NANO BIOMATERIAL in 80s?

06 July 2014 7,338 1 View

Does anyone know about the synthesis of cobinamide (vitamin B12 precursor)?

We need to synthesize cobinamide, vitamin B12 precursor. At neutral pH, cobinamide exists as aquohydroxocobinamide, and at a pH of>11, it exists as dihydroxocobinamide. From our point of view,...

04 May 2014 9,547 2 View

Is it possible

..

09 October 2012 8,061 5 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