Is there any way to calibrate transducer without needle hydrophone?

Is there any way to calibrate transducer without needle hydrophone? Also any one know low cost hydrophone as precision acoustic is quite costly.

16 December 2020 1,070 2 View

How to convert mV output into MPa?

I am working on acoustic characterization of microbubbles using two transducers arranged at 90 degrees. During calibration, I am receiving response in dBm or mV. How I can know the PNP of my...

14 December 2020 1,814 5 View

What is the dielectric constant(Real and Imaginary parts ) of MASnI3 for 300 to 1200nm wavelength?

What is the dielectric constant(Real and Imaginary parts ) of MASnI3 for 300 to 1200nm wavelength? as I need it for Perovskite solar model design in Comsol Multiphysics

25 November 2020 1,350 1 View

Is there any way to prepare Polymeric Nanoparticles without adding water??

I am making Poly Glycerol Sebacate nanoparticles by solvent evaporation and nanoprecipitation, but material got hydrolyzed upon adding water. I want to replace aqueous phase. Which chemical should...

21 October 2020 8,319 9 View

Path to node for column diameter while linking Aspen with excel or Matlab?

i am optimizing a reactive distillation column. I have simulated a base case in Aspen Plus and now want to calculate its total annual cost in Matlab. while linking aspen Plus and Matlab i need...

01 October 2020 207 2 View

What happen if sebacic acid and glycerol were reacted for hour and then left the continued next day??

I have to end a reaction in process due to sone emergency. I was synthesizing poly glycerol sebacate. I reacted them at 170 under nitrogen for an hr and then stopped. Normal duration is 4 hr....

23 September 2020 7,827 5 View

Instead of gold or carbon coating, may I use platinum sputtering to get SEM image of a non-conducting material?

I actually don't have gold and carbon. I would like to know if I can do platinum sputtering on my sample to get SEM image? My sample is a non-conducting nanofiber

22 September 2020 2,470 3 View

How to check previous TC track record from the Japan Meteorological Agency (JMA)?

The TC track record can be checked easily from the Shenzhen Typhoon website, but how to check such records from the JMA website? Looking forward to a positive response.

31 August 2020 6,285 3 View

How to prevent hydrolysis of Pre-Polymer Poly Glycerol Sebacate?

I am working on encapsulating drug in Pre-PGS by solvent evaporation method. In which organic phase is PGS dissolved in THF, drug in water with tween 20. I am getting little particles at end. But...

02 April 2020 497 11 View

How to find Mean pixel intensity of ROI by using Image Processing Tool in MATLAB?

I am trying to find mean & SD of selected ROI via image processing tool. It is showing individual pixel intensity but not mean. Did I have to write a code for it?

25 February 2020 6,225 3 View

What are some of the research gaps in machine learning and artificial intelligence in africa?

i would to know some of the research gaps in the artificial intelligence field in most african countries.

03 March 2021 6,145 3 View

Is there any Machine Learning/AI algorithm that lets you predict with incomplete features without missing value imputation process?

For instance, the model is trained with A,B,C,D,E features to predict F target. Then, I want to make prediction on a new data, but with only A,C,D,E is known without doing missing value imputation...

28 February 2021 1,556 6 View

What are the important topics in the field of Artificial Intelligence in Business world?

Dear All, I am doing my MS in Electronic Businesses. And I am interested in the AI field and its applications for businesses, its benefits, impacts, etc. What kind of scientific research dominate...

26 February 2021 8,816 6 View

Suggest me some trending topics for phd research in text mining/AI/machine learning?

My master's research is in info retrieval and text mining. I would be grateful if you could help me to select a good topic for my phd research proposal.

24 February 2021 393 14 View

How can we improve AI in detecting fraudulent activities on digital payments?

I am conducting a study on the effectiveness of AI towards detecting and averting digital payment fraud. What are the popular AI techniques being adopted in mitigating digital fraud and how could...

21 February 2021 3,888 4 View

Can anyone suggest a topic for the Impact of AI and ML in the financial institutions?

I am currently doing my Master Thesis in FinTech and I am thinking of doing my project on the impact of AI and ML on the financial industry but as the impact of these technologies on the industry...

21 February 2021 7,128 3 View

Why at farmer level Cow/Buffalo are not done artificial insemination just after 2 month for yearly calving?

Physiologically in cow, oestrous heat again goes on the peak after 2 months but locally this is not observed and AI is after two months but done after at least 6 months.

17 February 2021 685 4 View

What is/are the best ML classifier(s) for Sentinel2 images?

Hi I am trying to segment a sentinel2 image. At this stage, I want to run a binary classifier that assigns each pixel to either farm or non-farm pixel. For this purpose, I have 4 10m bands...

15 February 2021 3,596 9 View

What are the popular techniques for pre-processing measurement data in Smart Grid/Power System?

The data collected from various measurement devices often contains erroneous values - such as noise, missing values, etc. What are the popular techniques for pre-processing measurement data in...

14 February 2021 4,642 2 View

How to convert isotrophic Deriche filter into anistrophic?

12 February 2021 5,889 6 View