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

Sutter electrode holder leaking after applying positive pressure. How to fix?

I am using a Sutter electrode holder for my patch clamp experiments, but I'm having trouble keeping positive pressure inside my electrode due to a leak out of the back of the holder. I have added...

02 March 2021 5,829 1 View

What thickness need for ITO to use as conductive layer?

I want to do RF sputtering of ITO on glass substrate using magnetron sputtering. what thickness do i need to make it good conductive layer to use it for PSC. Moreover, whats about thickness of...

01 March 2021 395 3 View

Why is my platinum counter electrode getting dirty during electrodeposition?

I am conducting anodic electrodeposition of MnO2 onto a stainless steel substrate, using a platinum strip as a counter electrode. This is done galvanostatically, with the current held between 5...

27 February 2021 1,829 3 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

How to troubleshoot Electrochromic Films and Electrochromic Devices?

I am trying to characterize an electrochromic system. The system uses ITO electrodes on glass, WO3 as the electrochromic film, and NiO as the ion storage layer. When I deposit NiO and WO3 and...

23 February 2021 9,592 2 View

How does elongation affect the resistance of an electrode?

What are the testing rate for electrodes recommended by ASTM for cochlear implants. I am currently doing the 15mm/min elongatio testing.

22 February 2021 1,515 1 View

Is that possible to do an impedance measurement without FRA module?

One of my colleagues said, "the impedance you can measure with the three electrodes and with the specific sequence varying the frequency" Is it possible to configure the potenciostat without the...

21 February 2021 418 2 View

Do you know this error? The experiment was stopped by a potential overload on Vs (auxiliary electrode)?

Hello everyone Do you have any information about this error 'The experiment was stopped by a potential overload on Vs (auxiliary electrode)' in Origamaster software? I tried everything possible,...

19 February 2021 3,152 7 View

Which compound is getting oxidized during bulk electrolysis with TFAA?

The experiment is really simple. When I do a bulk electrolysis with 1% TFAA (ACN solution) to get dihydrogen, what is going to be oxidized? (working electrode graphit, counter electrode platinum,...

18 February 2021 4,430 1 View

Not able to charge-discharge Li-ion coin cell at higher C rate ?

I am working on cathode material. I have made different Li-ion coin cell against Li metal using commercial available cathode materials such as LCO,LMO, LFP and NMC and also with the lab...

18 February 2021 1,450 3 View