Is there any method that we can electrochemically oxidize a powder?

I am working with a material which is sensible to water and oxygen, I would like to oxidize this powder either chemical or electromagnetically. Does anyone knows a method to electrochemically...

09 February 2021 2,944 3 View

How to make sure each cavity modes with same E-field distribution in COMSOL simulation?

In COMSOL Application Library, there is case about waveguide adapter. But there are some questions: 1) In boundary mode analysis, it just set to find only 1 mode and the S-parameter is...

12 January 2021 9,383 2 View

Generate a structure file through PGDSpider?

Hi, I am trying to generate a structure file through PGDSpider, for a diploid organism, where each locus is in two consecutive columns in one row, rather than data for each individual be stored...

29 December 2020 5,169 1 View

Why the treatment days for the xenograft model is less than the observation days?

In some experiments for investigate drug effects for in vivo xenograft model, some authors onle give treatment to the mice for 14 days or 21 days, but the data collection/observation (such as...

13 December 2020 525 2 View

Can distributed reinforcement learning realize distributed learning process?

The current distributed reinforcement learning framework, such as IMPALA, uses the structure of centralized learning and distributed execution. I feel that this is not really distributed. Is there...

02 December 2020 5,598 4 View

Is there any possible stabilize metal-doped blue-emitting light perovskite through self-assembly method?

Now, I have got a metal-doped perovskite in which blue shift happens result. I tried to make it a more blue shift to get a stable and very blue perovskite. So I think is there any possible...

04 November 2020 8,384 3 View

Why perovskite thin film PLQY much higher than dispersion PLQY?

I doped Mn into perovskite. I found when up to the best doping amount, the thin film PLQY much higher than the dispersion PLQY in my experiment. I don't know what caused it, is there any theory...

04 November 2020 2,477 3 View

Is there any relationship between crystallinity and PL indensity of perovskite?

I added the Mn dopant into the MAPbBr3 perovskite. When Mn dopant I added up to a certain amount, pl intensity can get a high result, but in the next day, the highest result I got decreased...

05 October 2020 9,192 7 View

How do I change to make an insoluble recombinant protein to a soluble protein?

How do I change insoluble recombinant proteins to soluble proteins? My recombinant protein is Aldose dehydrogenase from bacterial with around 35.0 kDa size. Now, My expression vector and...

05 October 2020 1,840 2 View

Why PLQY of perovskite can decrease too much the next day?

I tried to use Mn dopant into MAPbBr3 perovskite, but,I don't understand why the plqy of the thin film will decrease too much in the next day and then after several days it can also get increased...

04 October 2020 3,464 4 View

Standard curve shifting over time. How do I stabilise the ELISA?

24 February 2021 1,365 3 View

How does the injection volume impact LLOQ and ULOQ in regression analysis (LC-MSMS)?

Hello, I have run into an issue that has sparkled a debate at work: is the LLOQ/ULOQ impacted by injection volume under the following circumstances: 1) Same dilution factor of all samples 2)...

23 February 2021 9,159 3 View

Using the Pfaffl method: Is it possible that the ratio of the calibrator does not equal 1?

Hi all, I have a question regarding calculations using the Pfaffl method. I have 3 groups per experiment: 1 control group (calibrator) and 2 treatment groups with 6 to 7 biological repeats per...

19 February 2021 8,351 2 View

XRPD Quantification - Building a calibration curve of drug excipient?

I am aiming to utilise XRPD to quantify a drug excipient within a drug product and have been having a little trouble building the calibration curve to allow for this quantification up until this...

10 February 2021 6,145 3 View

What are the things you should keep in mind while designing a controller for a quadrotor and want to implement it on hardware (via arducopter) ?

I am designing a flight controller for a quadrotor. At first I am designing a nested/cascaded controller consisting of only proportional controllers Kp . Now, if i tune the rate controller for 10...

03 February 2021 5,001 3 View

Can't run my IPMSM drive system with DC-supply higher than 125 V. Have anyone had similar problem?

Hey, I try to run my 4 pole IPMSM with PWSVM and use a typical controller with PI-controller with a current loop and speed loop. When I run my system with DC-supply 100 V with a steady-state speed...

28 January 2021 7,354 8 View

Gain and offset values in Sentinel-2 L1C?

Hello everyone. I have been trying to apply radiometric calibration on Sentinel-2 L1C images (bands 2,3,4 and 8), but every time after layerstacking I come across this error: "Calibration...

28 January 2021 7,160 1 View

How does artificial intelligence impact cybersecurity?

With emerging technologies, the availability of data at every point of customer interaction has increased. Consequently, the need to monitor and secure the data has increased. With data being...

19 January 2021 7,944 9 View

How can you confirm new liquid FTIR cell fits calibration?

We have an FTIR instrument which was calibrated in transmission/absorption mode using a set of cells for different ranges of D2O concentration. One of the cells at high range broke and the new one...

16 January 2021 4,791 2 View

Standard addition calibration without blank matrix available?

I have a problem of analytical chemistry. We are working on a spectroscopy technique (FTIR) for the quantification of a mineral phase in complex matrices. We intended to use chemometric techniques...

12 January 2021 7,739 1 View