Script required for PCA in R?

Kindly share R script to compute PCA (Principal component analysis). Regards Sougata Das.

31 August 2020 5,968 4 View

How can i set up the motion band for the rotor(bldc) i have designed in maxwell ansys?

I am getting error as the permanent magnet i.e red and blue colours are showing not in the line of center of axis of rotation when i am opting for "considering mechanical transient ".

16 May 2018 6,689 1 View

How to check tissue specific distribution of mRNA using Real-time PCR?

I just want to check the expression of a particular mRNA throughout the different tissues (Liver, Kidney, Brain, Muscle, Gills, Intestine, Ovary, Skin, Spleen etc.) in a control/untreated fish. If...

27 February 2018 2,178 6 View

Why only BSA and Skimmed milk proteins are used for blocking in Western blotting?

Why antibodies (primary and secondary) do not cross react with these protein? What chemistry is there to choose these proteins as blocking reagent?

08 January 2018 1,967 6 View

No title

02 November 2016 5,783 2 View

What should be the unit of Nitric Oxide in tissue?

28 January 2016 4,636 4 View

Should I use DTT (Dithiothreitol) or any reducing agent in homogenizing buffer for enzyme assay?

I want to assay the enzyme activity of different antioxidant enzymes. Should I use any reducing agent in homogenizing buffer? I have gone through some protocols for assay and the reducing agents...

24 January 2016 8,220 20 View

What is the significance of molar extinction coefficient in enzyme kinetics assay?

What does it actually imply?

16 January 2016 2,603 3 View

Which is the most efficient etching solution for nickel based alloys?

Which solution reveals the microstructure and features of nickel-based alloys?

02 March 2021 2,221 3 View

How to determine solutionizing time for cast Al alloys?

For wrought alloys soaking time at solutionizing temperature is determined by thickness .Do we have such standards for cast Al alloys

23 February 2021 8,839 3 View

Which thermal conductivity test recommended for Ag-Cu nanofluid?

I have prepared Ag-Cu alloy with polymer coating upon it.... how can I measure thermal conductivity of it ?

22 February 2021 5,915 3 View

How to generate AA6061 alloy or any aluminium alloy crystal in material studio?

I need to carry out molecular dynamics simulation on Aluminium alloy. For this i need the crystal structure that which could be further replicated to form a structure.

22 February 2021 1,410 1 View

What is the best etching method for Mg-Ca alloy?

I have used Picral etchant (4.2 g Picric acid, 10 mL Acetic acid, 70 mL Ethanol, 10 mL distilled water) but it didn't work. Is there any alternative?

21 February 2021 2,558 5 View

What are damage parameters for SMA while modelling on ABAQUS 2020?

I have given Elastic and Superelastic material properties, but I think we need to provide the damage parameters also. Please help me here.

16 February 2021 8,694 1 View

Are there alternatives to the Devarda alloy when estimating nitrogen?

Are there alternatives to the Devarda alloy when estimating nitrogen? devarda alloy is reducing the nitrate to ammonium

15 February 2021 8,838 3 View

Passivation of chromium cast Iron in high temperature?

14 February 2021 2,157 3 View

How can we quantify martensite in Ferrous and Titanium alloys?

How can we quantify metastable phases like martensite in Ferrous and Titanium alloys, in relation to their stable counterpart For example in EBSD, XRD, Optical? Eg, Martensite and Ferrite maps.

09 February 2021 7,572 3 View

About forging of Mo Alloys ?

Hello dear Academicians, I am working on the forging of Mo alloys, but I wanted to consult you on an issue I could not solve. Mo is easily oxidized during forging and MoO3 is formed. Is it...

09 February 2021 1,989 3 View