There are two vectors, the dimension of which is 500 or higher.
What method can be used to judge the similarity between the two vectors more reliably? Euclidean distance? Cosine similarity? L1 norm? and so on.
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
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
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
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? Not sure we choose the right method. We have...
14 May 2019 4,804 4 View
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
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
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
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
I wish to find a bending and torsion test standard for a surfboard (non-prismatic) that is roughly 2000mm long. The closest I've found for bending test is probably those ones that are designed for...
04 February 2019 3,222 8 View
Is it possible to induce site-directed substitution mutation by quick-change method on linear dsDNA? or it has to be cloned in some vector? If yes, should it be treated with the Dpn1 enzyme...
03 March 2021 401 4 View
Hello, Is it possible to use pUC19 as a transfer vector to be packed in using the second generation viral particles packaging system( pMD2.G; psPAX2 plasmids)? As far as I understand it there is...
28 February 2021 4,868 2 View
25 February 2021 1,987 3 View
I do need the Matlab code of Fractal Discrete Cosine Transform (FDCT). Can anyone who has already implement this code, help me with the implementation of this transform?
24 February 2021 5,602 2 View
For example, I have this phonon dispersion(Fig. 1), and now I would like get vector of atoms which describes TA1 in P. I know v_sim can show vibrational animation of specific mode, but I do not...
20 February 2021 4,332 4 View
1. A bcc metal single crystal was sliced along (1 -1 0) plane for TEM study. Assuming that the TEM available is equipped with a goniometer stage which tilts up to 45o. The Burgers vector of...
20 February 2021 2,370 1 View
i have a vector 1*512 size, i want to take the first value every 8 elements and put these elements at the end of the vector,how to do this on matlab ?
19 February 2021 2,352 5 View
Hello, I am planning to insert GOI between CaMV 35 promoter and mGFP in pCambia1302 to produce a fusion protein and see subcellular localization of the protein. But the vector says it's membrane...
15 February 2021 4,353 3 View
Hi Fellow Scientists! I am trying to clone my 300 bp insert into a 6 kb vector. I run a few different ligation reactions using (1:3 vector: insert molar ratios) 10, 20,30, and 40 ng/ul vector...
15 February 2021 9,563 6 View
Are E.coli strains M15 and pET28a vector systems compatible? Can I over-express my protein which is of plant origin. Previously I was using BL21 DE3 strains. Was confused to use M15 strains for...
10 February 2021 2,564 3 View