https://open.substack.com/pub/alexanderohnemus/p/honor-kirk-aanes?r=nfdfi&utm_medium=ios
Hi I am trying to model a cutting problem with a blade and comparing the results with and without ultrasonic vibration. From experimental results in our group, the use of ultrasound can...
13 June 2024 7,461 4 View
I'm conducting research on photoplethysmography (PPG) signals obtained from smartwatches worn on the wrist. The main goal is to analyze the PPG waveform and extract key fiducial points and...
13 June 2024 3,286 0 View
I am running some simulations in Abaqus to extract the stiffness matrix of a FE model with geometric nonlinearity. I want to provide to Abaqus a set of nodal displacements (all the dofs in the...
28 May 2024 4,797 2 View
Hello together! I have some time-series for tree-rings from dating from 1850-2016 and diameter at breast height (DBH) from 1996-2022 for the same plot, however the sampled trees for tree-rings...
16 May 2024 5,295 2 View
I think so because The Random Slate Theorem
03 May 2024 3,082 7 View
I am currently trying to get a Skyscan 1072 micro CT to work again. After the mainboard on the original PC died, we tried to set the machine up on a new computer. We managed to control the source,...
28 April 2024 381 0 View
Is it worth using a paired t-test on pre and post survey data with 12 or less responses? Or should one rely more on the mean and standard deviation of the two data sets to evaluate the survey...
27 April 2024 8,703 8 View
1)Religion(or at least spirituality) calms my mind, particularly, the built in belief of only one reality. God created the only reality. The afterlife is another dimension. We have free will but,...
25 April 2024 10,055 0 View
I have 217 preprocessed BrainVision matlab files (.mat) with ECG data in them. I've been having trouble creating a study for these. I know BioSig works for ECG data, but it doesn't seem to work...
21 April 2024 1,028 2 View
I have 25 folders for 25 participants, all with .mat files inside that are preprocessed. Most of them have the same amount of .mat files - a couple participants didn't finish the study, so they...
17 April 2024 1,897 3 View
I am trying to simulate vehicular loading on an orthotopic steel deck bridge section in ABAQUS software. The red arrow mark in the attached figure indicates the direction in which the vehicle will...
08 August 2024 719 0 View
Hi, we have measured tryptic peptides using both DDA and DIA method on QExactive. In DDA replicates i saw unusual intensity drops occurring at the same sections of chromatograms in DDA replicates...
07 August 2024 3,218 4 View
Hi, I have a question about normalizing the MTT OD values for doing the statistical analysis. So, if we have 3 different plates and we call them 3 different replicates, so, first we would...
07 August 2024 8,106 4 View
I am trying to put 3 separate plasmids into Staphylococcus aureus and I am looking for those that are theta replicating and compatible. I have obtained pSK9065 (from pSK1) from Addgene, but the...
23 July 2024 6,968 0 View
I am trying to replicate results published in the journal paper published recently (Modeling of Laser-assisted micro-milling Inconel718 ). In that paper, they used vdflux subroutine to obtain...
05 July 2024 3,701 0 View
Hi anyone, I have got in to trouble, We have pet plasmids type 28 and 21 and I have found pet plasmids can't replicate in to pseudomonas, can anyone tell that why pet plasmids, especially, 28 and...
25 June 2024 7,083 1 View
Hello. We have a sample with an unknown concentration of polyphenols. We're diluting the sample in order to perform the Folin Ciocalteau method. 0.2 grams sample / 4 mL 70% methanol and 30%...
10 June 2024 2,134 3 View
Hi all, Hoping for some troubleshooting/advice. Currently setting up a virus typing assay for routine use. I have the assay working with good sensitivity (regularly amplifies samples that are...
09 June 2024 4,468 3 View
I want to replicate the third step, but there seems to be no reaction in an alkaline environment. However, sodium hydroxide is used in the literature. Should I switch to an acidic environment
05 June 2024 9,358 1 View
I am doing a RT-qPCR for gene expression analysis of cancer patients, and there are four different groups in the results. The first group that shows over expression of my target gene (both two...
31 May 2024 1,088 0 View