Does Covid-19 vaccine give to pregnant and breast feeding women?

I need to know the safety of Covid-19 vaccine in pregnant and breast feeding women

17 February 2021 504 9 View

How can we calculate the concentration of nanoparticles in a solution ?

1- Absorption of 1 cc of a nm solution of 20 gold particles at 530 nm equals one. Calculate the extinction coefficient of these nanoparticles (consider the light path length of 1 cm). If we were...

30 November 2020 9,274 1 View

How can i collect many blood sample from the rat for pharmacokinetic study without killing the rat??

how can i collect many blood sample from the rat for pharmacokinetic study without killing the rat??

28 October 2020 2,675 8 View

What's the effects of the wet season and dry season on biological soil crusts specially algae (Cyanobacteria and green algae)?

I work the research about stabilization of soil by Biological soil crust especially algae (Cyanobacteria and green algae) Could anyone please help me about this topic soil stabilization using...

17 December 2019 8,682 3 View

No title

04 November 2019 7,867 3 View

Is there researches about "Bearingless Brushless DC motor" that explain the magnetic forces needed for the suspension?

I need researches about "Bearingless Brushless DC motor" about the magnetic forces and the displacement of the rotor that will be measured by hall sensors,,,I am trying to build a matlab...

14 January 2019 1,062 2 View

simulate a brushless dc motor open loop with ?

HI I am trying to simulate an open loop brushless dc motor ,but although Ive followed the exact equations, the results are unacceptable please Ive attached the matlab simulation if any one have...

03 January 2019 6,419 1 View

What are the best mobile phases to identify phenolic acids in ethanolic plant extract ?

Im searching about mobile phases , using thin layer chromatography, for identification of flavonoids and phenolic acids for my research. thank you

30 November 2018 8,197 3 View

Is there a difference in performance and in results when run CFD software on a laptop with Nvidia Quadro graphic card as compared to Nvidia Geforce?

I am inquiring about the best laptop features to run CFD software efficiently so that I get the minimum time of run and the best visual results. Any valuable recommendations are welcomed!

15 August 2018 8,802 5 View

What are the biological factors that affect on erosion in soil ?

There are many microflora in soil such as bacteria, algae and fungi that affect soil properties Are the bacteria present in the soil affecting soil erosion and physical and chemical properties...

12 February 2018 1,294 9 View

How should I analyze the multiple scans in Malvern Zetasizer software?

Hello, I am currently using the Malvern Zetasizer software for the purpose of obtaining the size distribution of nanoparticles produced in the lab. When I perform the runs in the software to get...

15 February 2021 4,251 1 View

Which optimization algorithm is most efficient for fitting a regression model using training dataset?

The goal of regression model is either to minimize the prediction error or to maximize a classification accuracy depending on the type of the model. Is there any optimization algorithm that is...

10 February 2021 4,128 3 View

Why does the accuracy of NN decreases when two datasets are combined?

I am working on gait analysis using a feed-forward NN. When I use data from the accelerometer (3 columns for each axis if stored in a data frame), I get an accuracy of 95%, and when I used data...

07 February 2021 9,654 6 View

Which techniques are used to improve the accuracy of deep learning models by compressing neural networks?

Hi all, I am looking for enhancing the accuracy of a deep learning model using some techniques to compress neural networks. Could someone suggest to me some of the tools/techniques,...

29 January 2021 1,781 4 View

When is the right time to stop training a classification algorithm?

In this example giving 400 samples looks like there is an accuracy of 91.5% while training beyond that point, accuracy is getting decreased. Are 400 samples enough to keep for this example? If...

27 January 2021 5,657 3 View

45% top1 Accuracy on TinyImgeNet?

I trained a model from scratch no transfer learning of any kind I got top1 validation accuracy of 45.79 and top5 validation accuracy of 72.39. I did a lot of hyperparameters tuning I have seen...

19 January 2021 6,883 2 View

How to express accuracy of the neural network where the dataset has not been split into two, training set and test set?

In use, the weights obtained are considered with the greatest accuracy when the data set is divided, because the weights are initialized at random and the training data is swapped at random...

19 January 2021 5,714 4 View

Multicollinearity between bioclimatic variables in spatial distribution modelling?

Is there any manual guide to perform multicollinearity test between environmental (19 Bioclimatic) variables for MaxEnt modelling? Using all variables without removing the correlated one affects...

14 January 2021 3,807 7 View

Why do I have good performances for the test set but bad performances in predicting new data ?

Hello :) I'am trying to predict churn for the year of 2020 based on historical data from 2014 to 2019 on R Studio. The aim is to predict churn probability for every person. At the beginning...

13 January 2021 5,565 7 View

How to change an internal parameter during MATLAB fminseach?

An optimization is performed using the MATLAB fminseach function. This optimization has a parameter that adjusts the precision, and the larger the value, the wider the search range of solution...

12 January 2021 3,832 1 View