Signal phase shift after analytical calculation?

Suppose we have a signal as x(t) = exp(i(omega*t + phi)), after a simple calculation as y(t) = 1/x(t). We can clearly see that there is a phase shift of Pi=180deg. However, using directly...

20 October 2020 4,923 5 View

Any recommendations on the software to do text mining or sentiment analysis on Chinese reviews?

I am trying to do text mining on Chinese reviews. I have tried out many softwares, like the RapidMiner, Chinese Text Analytics, Python. Most of them seem to require certain level of programming...

12 August 2020 9,109 8 View

HEK-293t cell detach but still alive during killing curve set up?

Hi there, I'm trying to build a killing curve for HEK-293T towards hygromycin B for the following transfection experiment. I plated the cell at 1.3X10^5 cell/well in the 24 well plates the night...

30 June 2020 7,368 1 View

Is it the amygdali communication that results in sensory synthesis (i.e. meaningful perception)?

I have hypothesized that humans actually do have a sixth sense, however, not to see dead people (lame joke). Rather, I have hypothesized, and it is possible for this to have been previously...

13 March 2020 5,189 3 View

Is my enzyme not working?

Hello everyone, I am currently working on a cloning project with 2 vector pBin mCherry (for localization) and pG5H-GFP (for gene expression). I need to clone 1 ATG gene with the size of 1.3 kb...

09 February 2020 7,931 2 View

We transfected HEK cells for a secreted protein and want to confirm the protein is expressed in right MW. Should we collect supernatant for Western?

We transfected HEK cells for a secreted protein and want to confirm the protein is expressed in right MW. Should we collect supernatant for Western? Not sure we choose the right method. We have...

14 May 2019 4,804 4 View

Why should SVD get two equal singular values for a single mode?

Singular Value Decomposition (SVD) is an important method in the area of signal processing. I try to use SVD to calculate the MHD mode structure from experiment data. However, during the benchmark...

10 April 2019 6,118 4 View

How to derive the Boltzmann equation in plasma physics?

Boltzmann equation in plasma physics is a very fundamental equation in kinetic theory. What's the relation of the one in plasma physics and that in thermodynamics.

03 April 2019 4,925 8 View

What the best soltion has good adhesion to CdS thin film?

I'm trying to find a solution to dissolve particles CZTS- about 15nm.This solution has to have great adhesion to CdS layer. Recently, I have tried toluen and hexanthiol but I still can control...

15 March 2019 5,444 2 View

How to clone a gene with long sequence?

Dear All, I'm now trying to amplify a gene with 3690bp from the genomic DNA. I've design 3 sets of primers. First set is flanking the whole gene. Second set is flanking from 1 to 2613bp. Final...

07 February 2019 1,167 1 View

What is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Can we block unwanted images during the x-ray prediction?

i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).

03 March 2021 7,100 1 View

How to quantify carbon deposition on CuZnAl catalyst?

Dear All, I want to quantify carbon deposition on the surface of the CuZnAl catalyst. I have tried thermogravimetric analysis, but I've got weight gain as the active Cu- get oxidised. Does anyone...

01 March 2021 1,907 3 View

Why Trivalent chromium start precipitating above PH 5 ? Moreover discuss difference between adsorption of chromium and precipitation of chromium ?

I am a student of MS Environmental Engineering and started my research phase. I am working on metal removal ( chromium iii ) by using activated carbon prepared from the agricultural feedstock. So...

01 March 2021 5,475 2 View

Does anyone know to clarify these changes?

01 March 2021 1,290 2 View

What do I do with DLS peaks that are from the buffer?

I'm looking at the aggregation of my protein sample using DLS. Unfortunately, my buffer (20mM HEPES) also results in a set of peaks. These are at approximately 1 and 1000 d.nm. The lowest peak...

01 March 2021 9,015 2 View

How can I make stacked bar graph with scatter plot?

I want to make a stacked bar graph with showing each data value as dots. I tried with graph pad prism, version 6, but could not succeed. Does anyone have tried before making such graphs?

01 March 2021 9,383 1 View

In an eye with Tyndall, does each dot correspond to an individual cell?

When you observe the presence of Tyndall in an inflamed eye: Does each of the small floating dots correspond to an individual cell or to an aggregate of cells? Does a conventional slit lamp have...

27 February 2021 6,326 2 View

How to calculate the crystallinity of cellulose film?

27 February 2021 2,753 4 View