Is there a website specialized in online speech data collection?

Collecting acoustic data during the pandemic faced me with a challenge that I need to overcome. I have to upload some audio files and scripts, and the subjects are required to answer the questions...

22 September 2020 4,168 6 View

Hello, i want to ask why the yellow colour of essential oil turned into blue colour during hydrodistillation process?

it is because of oxidation or what?

25 February 2020 3,035 7 View

Thickness of oxide layer from the XPS ?

How do I calculate the thickness of oxide layer from the XPS depth profile? Is there any free tool that can help me know the thickness (oxide copper Cu2O) or could you attach a paper? Thanks

18 February 2020 2,723 4 View

How can I prepare a preparative TLC plate (PTLC) using sodium carboxymethylcellulose as a binder?

How much silica is required per grams of sodium carboxymethylcellulose?

25 April 2019 7,824 2 View

What is the effect of aging during the synthesis of nano materials?

I am working on the synthesis of 2-D transition metal nano structure by using hydro-thermal route. I am confused about the aging process and also want to learn about the post-synthesis aging? is...

06 March 2019 3,427 4 View

How can I avoid tailing in TLC of the given starting material?

I tried a variety of solvent systems to no avail. Given the structure of the starting material, what should be the best solvent system to avoid tailing.

16 February 2019 4,990 3 View

How write matlab code for multipath rayleigh fading channel?

in my case we assume independent multi path rayleigh fading channels, and the power gains of multiple paths are exponentially distributed. the numbers of channel paths is 4 and the TX-RX...

10 February 2019 4,673 2 View

Key size in LSB steganography ?

I am working on an Image LSB steganography to hide secret image in image cover,and I used these benchmarks : * cover Image ::: Baboon (512*512) * Secret Image ::: Boat (128*128) I am using an...

13 November 2018 1,031 1 View

How do I remove aliphatic impurities?

My aromatic compound shows only one spot on TLC, but every time when I do the HNMR, I get peaks in the region 0.8 to 2ppm, which do not correlate to any solvent or water present in the solvents. A...

01 September 2018 254 5 View

Does brown colour of my original sample colour does not change to colourless after been added with HCl. Is it acceptable ?

Hi i am doing flavonoid testing. The orgininal colout of my Mahkota Dewa sample is brown. I took 1ml of the sample and put it into test tube. After addition of NaOH the sample turns brown plus...

31 July 2018 1,886 1 View

How to code open-ended questions in SPSS?

Hello all, In SPSS I am going to code 2 open-ended questions. I have already read all the answers and I made a list of the most important categories to which I can code the answers. This question...

02 March 2021 1,757 4 View

Does Napabucasin soluble in dichloromethane and in ethanol?

I need to prepare a solution of Napabucasin (inhibitor of cancer cell stemness) in dichloromethane. The drug is expensive, so maybe somebody already tried to do it. If it is soluble, what is the...

02 March 2021 9,945 3 View

Could you please recommend some good journal that accept very long revie papers (approximately 6000+ words) in neurosurgery, cancer biology ?

Could you please recommend some good journal that accept very long revie papers (approximately 6000+ words) in neurosurgery, cancer biology ?

01 March 2021 8,087 3 View

Which cell line should we use to perform biological dosimetry experiments?

We are preparing some experiments based on irradiating cells under different conditions in order to evaluate the effects in terms of DNA damage, genetic expression, etc. As our project is...

01 March 2021 3,355 3 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 View

How to eliminate Steady state error from Reinforcement learning genetic algorithm code?

The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...

28 February 2021 6,560 14 View

Dapi fluorescence protocol for colon cell lines ?

28 February 2021 2,534 2 View

How could I process data in RCT to include it in meta-analysis?

I'm in the process of doing a meta-analysis and have encountered some problems with the RCT data. One of my outcom is muscle strength. In one study, I have three different measurements of muscle...

25 February 2021 7,603 3 View

Satellite orbit estimation using Recurrent Neural Network - what should I use?

Hello, I am a master's student studying in Yonsei Univeristy, Korea. I am trying to estimate the state of satellite, using Neural Network. Below is a simple flow of my study. 1. Train (t0 ~ t1)...

23 February 2021 6,383 3 View

How to empty large intestine in mice ?

Hi all I am working on colon-targeted drug delivery for which I kept mice fasting for 6h using fasting grills during scotophase (dark period). I observed liquid fecal content in the cecum and...

23 February 2021 7,701 2 View