Since we are not 100% certain of the eternalness of human consciousness then is life extension a moral imperative? How? Why?

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Why are reaction forces so high when I add vibration to cutting model?

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

Best Tools for Wrist PPG Signal Analysis: Your Recommendations?

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

Why diagonal terms in Abaqus stiffness matrix are infinite?

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

Is it possible to combine a time-series of tree-ring widths and and a time-series of diameter at breast height measurements into one TS?

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

Is priori knowledge only instincts? Why?

I think so because The Random Slate Theorem

03 May 2024 3,082 7 View

How to fix driver conflicts of an ancient Skyscan 1072 micro CT with DT3157 video grabber ?

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

Statistics: Is it worth using a t-test on pre and post survey data with 12 or less responses?

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

What about religion, God, multi verse, etc.?

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

Handling BrainVision matlab files with ECG data in EEGLAB?

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

EEGLAB - how to import multiple .mat files from different folders all at once?

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

How to cacualte the creep life of polycrystal with CPFEM?

I saw a paper(PHAN V-T, ZHANG X, LI Y, et al. Microscale modeling of creep deformation and rupture in Nickel-based superalloy IN 617 at high temperature [J]. Mechanics of Materials, 2017, 114:...

16 July 2024 8,436 0 View

Which LCA software would you recommend for comparative LCA of electrolysers? And is ecoinvent database alone is enough for such a assessment?

For additional information, I am a master's student looking for a LCA software to do my thesis. So a less expensive one is my first priority, but if it is not able to help me with a clarity...

18 June 2024 8,376 3 View

My conditional effects are significant but my moderation analysis is not, how come?

So I am doing my thesis on the relation between cyberbullying perpetration and life satisfaction and if physical activity is a moderator. But in my moderation analysis the interaction is...

17 June 2024 6,400 2 View

Welcome Find these basic axes in p df form:1.Introduction to Botany:2.Plant Structure and Function?

conservation Conclusion: In summary, "Exploring Botany: An Inclusive Guide to Plant Biology" aims to be an invaluable resource for students, educators, and enthusiasts interested in delving into...

13 June 2024 5,807 1 View

I am trying to do LCA of Water Treatment Technologies. Are there any recommended introductory resources or textbooks on LCA that you suggest?

Some Other Questions, if you can answer: What types of data are essential for conducting an LCA, and where can I find reliable data sources for water treatment technologies? How do you deal with...

11 June 2024 4,791 0 View

How to explain the difference in LCIA results from ReCIPe2016 and IMPACT World+ with literature?

Hey there, I am currently conducting a life cycle assessment and as advised, I used different life cycle impact assessment (LCIA) methods to check for robustness of results. I found that when...

03 June 2024 8,431 2 View

How do I remove the 2nd bands from the PCR product and what are the possible reasons for this problem?

Good day! I extracted bacterial DNA from (rotted) apple fruit samples and am planning to run a 2-step PCR. This result was from the 1st PCR. This was from non-diluted DNA samples of about (20 - 50...

22 May 2024 7,194 7 View

Describe the project life cycle or development approaches in project management?

21 May 2024 9,020 2 View

Is there a study on the LCA of Kapton/Polyimide available?

As Kapton is one of the predominantly used substrates in printed electronics applications I was wondering if there is a study on the LCA of Kapton/Polyimide available? At least considering the raw...

21 May 2024 7,402 0 View

Is there an accepted method to screen candidate indicators prior to Latent class analysis?

All, Working on a latent class analysis project where the data set has 393 participants. The survey items that the client wants analyzed include something like 100 dichotomized variables. I am...

15 May 2024 862 3 View