Is it possible to do Reitveld Refinement on single crystal XRD data?

I tried to do single-crystal Rietveld Refinement on my single-crystal XRD data using the option "refinement on single-crystal data/ integrated intensity data" in Fullprof but it is giving error...

30 January 2021 7,813 3 View

What will be the impact on Antenna performance to shift the resonant frequency by RLC Matching network?

There is always a possibility to shift the resonance frequency by adding a RLC matching network. I wonder what will be the consequence on antenna performance (axial ratio, gain)? If there is no...

13 September 2020 5,187 3 View

Axial ratio shows different result at different ortogonal setup. What could be the reason ?

17 June 2020 5,332 3 View

Firm survival and mortality: How to relate both?

I have two data sets 1. Age of all the surviving firms at any given point of time. The age distribution is an exponential function 2. The age of all the firms which died at a given point of time (...

01 February 2020 3,542 1 View

Why Antenna shows negative gain even though it has very good matching?

I am aware of the fact that electrically small antennas are poor radiators with very small gain and low efficiency. One main cause of this is poor matching. An extremly electrically small antenna...

19 January 2020 5,285 9 View

What is the impact of image current from ground plane on patch antenna? I wonder how it radiates if ground plane is very near to radiator?

As we know, patch antenna is combination of two magnetic dipole. If we place a perfect electrical conductor near a dipole, antenna performance will suffer significantly. Then how a patch antenna...

27 November 2019 7,597 5 View

I am getting two peaks at 702 and 705 eV for Fe 2p scan of a composite made from Fe-salen.how it can be explained?

the pure Fe-salen spectra is in conformity with literature,but the composite is showing two extra peaks at 702 and 705 eV. Can anybody explain about why the peaks are coming.

23 July 2019 5,710 3 View

What will be the cororidinate(theta and phi) to evaluate the axial ratio?

I have designed a circular polarized antenna. But , I am confused with cor-ordinate system. In some angel it shows less than 2 dB axial ratio and some other point it shows more than 10 dB like a...

23 May 2019 2,175 7 View

Why there is a big difference in between realize gain and gain in my design?

I have designed a multiport antenna. Where as, I have 2 dB Gain but realize gain is -6 dB. Point to be noted, S11 is really good. I have -25 dB return loss at my desired frequency.

22 November 2018 6,165 17 View

Bands in western blot are behaving like GHOST!!!!!!!!!!!!!!!!!?

I am doing western blot and after development I can see that one/ two lanes have no band. Perhaps, next day I am doing same gel run with same sample with no change in protocol, this time another...

25 September 2018 8,325 3 View

Can anyone guide me about method to measure the Activity of carbonic anhydras enzyme in plant leaves ?

Can anyone guide me about method to measure the Activity of Carbonic Anhydrase (EC4.2.1.1 CA) enzyme in plant leaves by spectrophotometer ?

06 July 2019 749 1 View

How to carry out assay for activity of non-purified Carbonic Anhydrase ?

I expressed CA in E-coli and I want to make sure the expressed protein is carbonic anhydrase, is there any test to determine the activity of non purified CA ? Thanks in advance

24 March 2019 4,407 1 View

How to carry out assay for activity of non-purified Carbonic Anhydrase ?

I expressed CA in E-coli and I want to make sure the expressed protein is carbonic anhydrase, is there any test to determine the activity of non purified CA ? Thanks in advance

02 March 2019 8,122 1 View

Topiramate mechanism as Carbonic anhydrase inhibitor?

I going to apply Topiramate as a Carbonic anhydrase inhibitor in cells. I want to know is the drug have direct influence on cell by ligand or need bio-transformation in body to play their role.

02 March 2018 681 0 View

Why do we measure esterase activity in carbonic anhydrase at 348nm instead of 405nm?

05 June 2017 6,534 1 View

Is there any way to prepare CO2 saturated water without the help of any apparatus?

Hello all, I want to determine carbonic anhydrase activity in leaves by following Wilbur and Anderson method (1948). For this I need to prepare CO2 saturated water. But I don't have any specific...

09 January 2017 7,533 5 View

Is there any way to prepare CO2 saturated water without the help of any apparatus?

Hello all, I want to determine carbonic anhydrase activity in leaves by following Wilbur and Anderson method (1948). For this I need to prepare CO2 saturated water. But I don't have any specific...

31 December 2016 2,816 6 View

Measurement of carbonic anhydrase in haemolysate?

We have been trying to measure this but are finding the Haemoglobin is interfering with the assay. We removed the buffy coat, wash with 0.9% NaCl and lyse with 4 parts water. p-nitrophenyl acetate...

11 December 2016 5,505 1 View

How can I calculate production of carbonic anhydrase?

10 November 2016 1,553 0 View

Why is carbonic anhydrase not labeled by maleinide-Dyes?

My colleague and I derivatezed different proteins with differnt Dy-maleimides for fluorescent labeling. Especially carbonic anhydrase behaved strange. After labeling with Dy-635 maleimide, it was...

10 November 2016 3,356 4 View