Пікірлер

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  @123tobiiboii12329 күн бұрын

  Thank you for this video. Why is it so hard to find clear information about DOE? It seems like there are 1000 random videos on youtube telling 0.1% of the story. Is it something that is often taught in University classrooms but has not really made its way out to those that are self-studying?

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  @MarcelButschle28 күн бұрын

  That is exactly why I started with these videos! I have put some more resources on www.experimentaldesignhub.com I don’t know why there is so few information about it. My guess would be that DoE is quite commercialized. Even courses about DoE. They are usually quite expensive and not affordable if there isn’t a company paying for you.

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  @123tobiiboii12327 күн бұрын

  @@MarcelButschle Yes, it seems like many of the courses look like Sigma Six style, optimise your business for less waste and huge profit! I would like to find a comprehensive book or resource written for someone who knows some statistics and wants an overview of the techniques. I just read Naked Statistics and found the style so approachable. NightHawkInLight put out a pretty good video on using the Taguchi method for the layman. I'm thinking of finding the R. A. Fisher book, I think I will be out of my depth but at least most of the information will be in one place. The website looks great, I appreciate your efforts

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  @MarcelButschle27 күн бұрын

  Do you know the book: Design and Analysis of Experiments by Douglas C. Montgomery? Might be for you.

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  @mizanulhoque7084Ай бұрын

  Thanks man. God will reward you.

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  @MarcelButschleАй бұрын

  Thank you

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  @user-cl7lx1cq6pАй бұрын

  pydoe2 is not not importing well in anaconda python.. it says imp is needed but i cannot install imp in newer version of python. Can someone share what python version works for pydoe2?

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  @MarcelButschleАй бұрын

  Hey, I am using python version 3.11.7 and it works fine.

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  @danread1217Ай бұрын

  I had this recently. Try rolling back your Python version to 3.9.19. Seems pyDOE2 hasn't been updated for some time.

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  @danread1217Ай бұрын

  Also, try pyDOE3. It is a recent fork of pyDOE2 and is currently being maintained.

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  @aknaras6967Ай бұрын

  Thank you very much for your explaining.

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  @MarcelButschleАй бұрын

  Pleasure :)

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  @sebastianoverri94822 ай бұрын

  Love your work. Thanks, your teaching is very clear even for a newby inthe subject like me.

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  @MarcelButschle2 ай бұрын

  Thank you! Highly appreciated feedback :)

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  @pinkblossomsky2 ай бұрын

  Why do we only work within the 0.05 to 0.25 relative pressure?

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  @MarcelButschle2 ай бұрын

  The 0.05 to 0.25 relative pressure range is used in the BET method to ensure accurate surface area calculations, as it corresponds to the linear region of the BET plot where monolayer adsorption occurs.

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  @pinkblossomsky2 ай бұрын

  @@MarcelButschle Thanks!!!

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  @MarcelButschle2 ай бұрын

  No worries, sorry it took so long for me to respond :)

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  @pinkblossomsky2 ай бұрын

  @@MarcelButschle au contraire, don't you worry. Thanks for answering my question.

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  @Cherrybl_293 ай бұрын

  Does that mean I can't use bet if I have type I isotherm?

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  @MarcelButschle2 ай бұрын

  The BET method can be used with Type I isotherms, but it may not be ideal. Type I isotherms indicate microporous materials, where the BET assumptions may not hold true.

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  @mohammedbenali75463 ай бұрын

  Thank you for this video. Please, if possible how we can do doehlert design in python, Video the scientific community please.

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  @MarcelButschle3 ай бұрын

  Hi Mohammed, my approach is to keep it simple. I am aware that there are many different designs that can be very useful to some people but 90% of people will be fine with the combination of fractional design, full factorial design and central composite design. Therefore I am not planning to look into these „specialty designs“.

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  @aaGiGi4 ай бұрын

  very clear, many thanks from me who know very little in statistic but have to use it 😊😊

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  @MarcelButschle4 ай бұрын

  Thank you :)

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  @boulejouadilyas8394 ай бұрын

  so we can't calculate Sbet for a zeolite because it us microporous?

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  @MarcelButschle4 ай бұрын

  Basically yes. You can of course calculate a number but it might not be very meaningful.

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  @BigAlpha3655 ай бұрын

  Easy to follow and relaxed explainatory video. Thanks for sharing

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  @MarcelButschle4 ай бұрын

  Thank you :)

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  @christophersaid89855 ай бұрын

  This is great, thanks for posting. I work at a startup that's extremely cheap, so having DOE capabilities in python is very cool. Would you be able to share the actual Jupyter Notebook? I couldn't find it on your site.

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  @MarcelButschle5 ай бұрын

  Hey, sure! If you send me an email I can send you the actual Jupyter Notebook file. [email protected]

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  @superpierrinho6 ай бұрын

  Great video! Really valuable material. Congratulations :)

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  @MarcelButschle6 ай бұрын

  Thank you!

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  @pauloboratto2126 ай бұрын

  Very interesting and well explained

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  @MarcelButschle6 ай бұрын

  Thank you very much!

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  @Sunilkharol7 ай бұрын

  Wow the video is so informative but still has very less views strange Very well explained 🙏

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  @MarcelButschle7 ай бұрын

  Thank you 🙏 very much appreciated! Glad that the video was helpful to you :)

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  @pagoseto8688 ай бұрын

  I have a question about the Atomicnumber example. When the Atomicnumber increases does the diameter really get bigger? Or do the electrons interact more because of the extra protons in the atomic core?

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  @MarcelButschle8 ай бұрын

  Hey Pagoseto, the atomic radius generally inceases when you move from left to right in the periodic table within a period due to increasing nuclear charge (more protons). However, if you move down a group, the atomic radius increases due to the increasing number of electron shells. Hope that helps.

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  @exploreyourdreamlife9 ай бұрын

  This video's explanation of better experiments in coating science is fantastic. Kudos to the creator for their expertise! Liked and Subbed!

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  @MarcelButschle9 ай бұрын

  Thanks for your feedback! Highly appreciated:)

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  @fightchris73599 ай бұрын

  Nice, explained very well. I like the approach to let ChatGPT write most of the code. Keep going!

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  @MarcelButschle9 ай бұрын

  Thank you fightchris! Highly appreciated. Yes, ChatGPT makes it extremely easy to write code. Saves a lot of time and it makes it very easy to get started also when you are less experienced.

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  @wolf4jidg9 ай бұрын

  Cc?

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  @MarcelButschle9 ай бұрын

  Sorry, what is cc?

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  @vishwajoshi178 ай бұрын

  @@MarcelButschle cc means captions for the video. The video was helpful but it would be better if you include the captions, thank you much for this video

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  @DNAgaijin7 ай бұрын

  CC = Closed captions. This person is probably asking, "Hey, can you please electronically enable the SUBTITLES so he can read what you'e saying"@@MarcelButschle

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  @MarcelButschle7 ай бұрын

  Hey, thanks for clarifying! Sorry it took so long but I finally added English subtitles. For some reason, KZread doesn’t want to do automatic captions so I added them manually.

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  @wolf4jidg9 ай бұрын

  Cc?

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  @MarcelButschle9 ай бұрын

  Sorry, what is cc?

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  @pagoseto86810 ай бұрын

  Very helpful video to have an overview of what is important in such a case. Thanks :)

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  @MarcelButschle10 ай бұрын

  Thanks!

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  @punditgi11 ай бұрын

  This video is very important. Many thanks for creating it! 😊🎉

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  @MarcelButschle11 ай бұрын

  Pleasure! I’m glad that you liked it :)

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  @user-sw7jo3lg9p Жыл бұрын

  Hi how XPS measures the surface composition by formula, which means under the peak ratio I know the software can do it, I want to know the formula. thank you

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  @MarcelButschle Жыл бұрын

  Hey, apologies for the late reply. I am not 100% sure but think it should be something like this: At%_i = (A_i/RSF_i / ∑(A_j/RSF_j for all j)) * 100% At%_i: atomic percentage of element i A_i: the peak area (or intensity) of element i RSF_i: the relative sensitivity factor for element i Explanation: When we look at the data from the XPS instrument, we see different peaks for the different elements. Each peak at corresponds to a different element. The number of electrons detected (the height of the peak) tells us how much of that element is present in the material. However, not all elements respond to XPS in the same way. Some elements naturally produce stronger signals (higher peaks) than others, even if they're present in the same amounts. That's where the relative sensitivity factor (RSF) comes in. The RSF is a correction factor that accounts for these differences. By dividing the raw signal (the initial height of the peak) by the RSF for that element, we can get a more accurate picture of how much of each element is actually present. Finally, we normalize the data. This means we adjust the numbers so they add up to 100%. This is useful because it allows us to express the composition of the material in terms of percentages, which are often easier to understand and compare.

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  @pagoseto868 Жыл бұрын

  I have 2 questions about the topic. What type of epoxy molecules do they use for those tabels? BADGE is not stable against uv light. As soon as an epoxy reacts with a hardener the oxiran ring opens and an OH group is formed. How impactful is the autocatalytic effect of those formed OH groups? Can their impact be compared to something like a DABCO catalyst?

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  @MarcelButschle Жыл бұрын

  Hey pago, thanks for your questions and sorry for the delayed response. 1) They still use epoxy molecules that are BADGE based and you are right, they are not stable against UV-light. However, since the tables are indoor, UV dose is not as high. Thus, yellowing becomes manageable if light stabilizers are added to the resin. 2) I am not an organic chemist and I can’t give you a precise number on this autocatalytic effect. Not even sure how you would measure this impact since there are no epoxy resins that do not form this OH group. The reaction between phenol, formaldehyde and amines yields Mannich bases, which are used as catalyst for the epoxy curing reaction and it is the accelerating action of phenol that leads to this catalytic effect. In general, everything with hydroxyl groups catalyzes the reaction but I guess you already know that since you figured out the effect of the OH group within. And the effect of those might be comparable to DABCO or tin catalysts in PU systems. Hope this answer helps :)

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  @pagoseto868 Жыл бұрын

  @@MarcelButschle Thanks alot. Nice videos. They help me to refresh my knowledge (i am Studying at Esslingen, like you did) in a fast way.

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  @saidarhzaf Жыл бұрын

  This video was very helpful and useful but it will be better with subs tiles in different languages to help us understand better 🙂

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  @MarcelButschle7 ай бұрын

  Hey, sorry it took so long… I finally added English subtitles.

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  @fightchris7359 Жыл бұрын

  Nice! I line the intro. Keep grinding!

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  @jochenkeller1740 Жыл бұрын

  Great Marcel 😃

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  @d.u.n.i9 Жыл бұрын

  Can’t wait to watch the upcoming videos! Very interested in coatings!

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  @MarcelButschle Жыл бұрын

  Glad to hear that! :)

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  @fightchris7359 Жыл бұрын

  Great video! Thrilled to see more episodes

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  @MarcelButschle Жыл бұрын

  Thanks fighchris, next video will be on film formation ;) stay tuned!

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  @joelkingston6629 Жыл бұрын

  nice video

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  @bawenbaha8432 Жыл бұрын

  So well explained, thank you!

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  @himanshuthapliyal9705 Жыл бұрын

  Sir, this lecture is fantastic. But I would like to point out some things which may help to improve: 1. The speed of a video is prolonged. 2. The sound texture is not that good; please try to modulate it. Otherwise, the content is really very top-class. Seriously, you should continue giving more lectures, please.

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  @MarcelButschle Жыл бұрын

  Hey, thanks for your feedback! Highly appreciated. I agree on what you said and I try to improve it when I do more videos.

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  @randydandy81962 жыл бұрын

  Simple yet useful

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  @MarcelButschle2 жыл бұрын

  Thanks, highly appreciated

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  @priyajeni26562 жыл бұрын

  Thank you

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  @ohohjournal58282 жыл бұрын

  Thanks, continue doing these videos!

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  @dahcari65482 жыл бұрын

  Hi Marcel Butschle, I have question about SEM, 1/ Could SEM see nano materials, clearly or blur ? (I mean it's a normal SEM, not FE-SEM or high resolution SEM). 2/ If my material reach nano scale, could I use SEM to prove this material reach nano size? 3/ Which is the best method, cheap and convenience for characterizing (shape and size) nano materials? I hope I would receive your answer soon. Thanks Marcel Butschle so much.

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  @MarcelButschle2 жыл бұрын

  Hi dah Cari, you should be able to resolve particles down to 1 nm. Resolution of SEM is limited by the spot size of the electron beam. However, for some materials, if the spot size becomes too small, the electron beam destroys the sample (energy density is too high). Then your resolution is limited by that.

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  @MarcelButschle2 жыл бұрын

  If SEM does not work you have to use transmission electron microscopy which is quite common for nano-materials

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  @dahcari65482 жыл бұрын

  ​@@MarcelButschle 1/ I read paper in google scholar, almost they use TEM, FE-SEM (It's good from several nm to 100nm) or AFM using for characterizing nano materials. BUT I've seen (in youtube) and read in document SEM has resolution from nano scale. But I'm not sure 2/ In my lab don't have equipment (I mean TEM), only using SEM Thanks so much.

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  @mohammadjamil90832 жыл бұрын

  What if my sample is liquid

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  @MarcelButschle2 жыл бұрын

  Hi Mohammad, a liquid sample and vacuum does not work together. It would evaporate.

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  @hamdiatman21502 жыл бұрын

  Thanks

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  @fightchris73592 жыл бұрын

  Perfect amount of information in one video. Keep grinding buddy!

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  @fightchris73592 жыл бұрын

  Please more content and longer videos. You have a inspiring voice and explain these difficult topics very well.

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  @fightchris73592 жыл бұрын

  Good video.

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  @fightchris73592 жыл бұрын

  Well explained. Thanks.