How to know the ratio/actual number of training and testing sample in the RF classifier in SNAP platform?

Random Forest classifier is one of the most widely used classifiers used for supervised classification. The classifier provides accuracy and precision based on some training and test samples....

20 October 2020 6,425 4 View

Why does not graphene exist as a proper 2D sheet?

We know that graphene is the strongest material as it has high tensile strength. Then why does it exist as flakes? Why we cannot make a complete sheet out of graphene?

18 May 2020 8,820 4 View

Where can I get the Rainfall Statistics of India (Archived report)?

I need the yearly Rainfall Statistics of India (2001-2017). I have got from 2012-2017. However I am unable to find the reports for rest of the years mentioned above. Can anybody please provide me...

06 February 2020 6,397 2 View

How to understand soil taxonomy?

I was trying to prepare different soil maps (like soil type, soil texture etc.) for the state of Jharkhand in India. I found some of the maps in Govt. portal. However, I am finding it difficult to...

08 December 2019 8,446 3 View

Where can I get govt drought statistics/reports for India?

I was trying to detect drought scenarios using remote sensing techniques. But I need to validate the results using the govt statistics. Any idea where I can get state/district wise reports or...

24 July 2019 8,699 5 View

Where to get in situ soil moisture data for India?

I have already have satellite data derived soil moisture index. Also downscaled soil moisture obtained from ESA CCI soil moisture data products. To validate these data I need in situ soil moisture...

24 June 2019 771 8 View

Doing multivariate analysis: are you interested?

In horticulture science, we generally studied variability in germplasm. We follow correlation analysis to relate all variable under studies. We generally do Pearson correlation. But it is not...

13 August 2017 962 3 View

How to make pattern on a gold film/photoresist using DMD (digital micro mirror device ) and UV light for some photo-chemical reactions ?

04 January 2017 6,119 2 View

Is there a suitable computer program which can calculate a CCt diagram for steel having very lean chemistry (C: 0.035, Mn: 0.2, Si<0.01) with 30-70 ppm boron?

Please do not refer to JMatPro. It could not calculate for varying boron concentration in the given range. Any paper describing the process would also be welcome.

17 March 2013 586 1 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

How to remove the residual PDMS on the silicon mold?

Incompletely cross-linked pdms are difficult to remove.

01 March 2021 798 3 View

Can water be extracted from Olivine?

I have always been interested in geology and wondered about how unique structures of materials behave in different circumstances. I stumbled upon Olivine, the magnesium iron silicate, and heard...

28 February 2021 7,330 4 View

How does charge on working electrode changes with rising potential?

During performing CV of a GCE or modified GCE, we rise the potential in the first half of the cycle and reduce it in reverse half. During the first half, what is the nature of charge on GCE or...

25 February 2021 7,994 3 View

Can't recognize exact phase and PDF card no of Silicon carbide in XRD?

We have deposited silicon carbide on carbon substrate using one PVD technique. Due to amorphous behavior of SiC at low deposition temperature, we performed heat treatment of those films at...

22 February 2021 2,072 3 View

Amorphous silica XRD peak at around 10 degree?

21 February 2021 3,417 5 View

What is the detection limit of ED-XRF technique for transition metals in silicon ?

Hi everybody, please, can someone tell us if the transition metals (W, Fe, Ni, etc ...) in silicon destined for solar cell manufacturing can be detected by ED-XRF technique. Note that the...

18 February 2021 6,231 4 View

Unusually Busy Raman Background?

Hello, I am observing a nearly periodic background spectrum for a wide variety of SERS substrates. I see this response (attached below) for bare Au films, Cu films, and Au nanoparticles on...

15 February 2021 9,922 5 View