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An emission spectrum in IR wavelength region consists of interference fringes (after spectral correction). How do I smooth such spectra? When collected through fiber, absorption around 950 nm...
06 July 2019 4,454 13 View
Ruby (Al2O3 doped with Cr3+ ions), when exposed to ionizing radiation (for e.g. X-rays), emits luminescence. What is the mechanism that causes this 'Radio-luminescence? Does Cr3+ accept electrons...
07 August 2018 3,409 5 View
Does trapping of electrons in a defect (trap) depend on temperature (below room temperature)? If yes, what are the possible reasons? I see that, these electrons appear to be trapped more (as well...
06 July 2018 2,164 10 View
If something causes final orbital speed of the satellite to be decreased (final orbital speed < initial orbital speed), why its circular motion changes to elliptical motion? Assuming that the...
01 February 2018 8,936 9 View
I have recorded PL spectra using CCD detector with the help of detection filter upon exciting the sample with a NIR laser. In these spectra, I see interference fringes (figure attached). I would...
01 February 2018 2,891 4 View
If a material is supposed to be consisting of either intrinsic or extrinsic (or both) defects, how do they affect the physical characteristics of that material? Further, how one can differentiate...
11 December 2017 2,415 13 View
How to determine energy levels theoretically in a material. A wide band gap material doped with impurities. Could it be a tool to cross check the results obtained experimentally?
10 November 2017 2,156 4 View
I am trying to fit a thermal quenching equation in the form of I=I0/(1+c*exp(-E/((1.38*10^(-23))*T))), to my data in origin software. I'm unable to create a function that runs and fits...
10 November 2017 6,076 10 View
If an excited state is considered to be lying in either low or high density conduction band tail states, how the temperature will affect the PL emission from that state? Is above scene possible?...
10 November 2017 5,826 3 View
Is there any limit for generating narrow beam? How do I generate a narrow beam of 5 micron beam size?
09 October 2017 6,146 4 View
I have selected brain tumor images ...but now found that already lots of research done n this topic.
03 March 2021 5,774 3 View
When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...
03 March 2021 4,892 5 View
dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...
03 March 2021 6,994 5 View
I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...
03 March 2021 3,661 2 View
Do you have some recommendations approaches on Image processing and classification of plant diseases using TensorFlow/Keras?
02 March 2021 1,493 4 View
Working on chandrayaan-2 DFSAR data, there are three datasets available: 1) Slant range image data product: The slant range complex image file. Each pixel is represented by two 4-byte floating...
02 March 2021 8,481 3 View
I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.
02 March 2021 7,735 3 View
In some materials, properties such as band gap, thermal conductivity differ along different crystallographic axes. What are the basics?
01 March 2021 1,923 3 View
Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...
28 February 2021 7,882 2 View
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
