User talk:ArthurOgawa

navbox
Hi, i work on a navbox for ways of obtaining science in two related field, scientific method from philosophy of science and dikw pyramid from information science. i need help of some people like you to finsh this,

you can see a prototype of navbox in my sand box: https://en.wikipedia.org/wiki/User:KPU0/sandbox Plutonium 16:08, 21 February 2017 (UTC)

Psychrometric Chart (Was: psychometric chart)
Hi, I'm looking for Molliere diagram and I found your Image:PsychrometricChart-SeaLevel-SI.jpg which is in perfect quality for educational/encyclopedical use. I understand that Molliere diagram is only flipped and rotated your psychometric diagram, but when I do this with your image in my bitmap editor, then I get text upside-down or right-to-left which isn't very nice. I guess you generated your image by some script (or at least you used some vector graphic editor) so I would like to ask to generate your image again to look like Molliere diagram. Please answer to my original discussion page in cs: wiki. --EnJx (talk) 13:19, 7 December 2007 (UTC)

ArthurOgawa (talk) 19:54, 2 November 2009 (UTC)
Hello EnJx! I went to the page Wikipedista diskuse:Jx, but did not find a reference to the diagrams you want. Let us continue our discussion here, if you do not mind. Thank you for writing in English; I do not know as much Cs as I would like.

First, there is a new image available that is scalable, see at right.

Second, pardon me for being picky, but I have to correct your spelling: It is “Psychrometric”, not “psychometric”, and “Mollier” (not “Molliere”).

Third, obtaining the Mollier diagram (for moist air) that corresponds to the ASHRAE-style psychrometric chart is non-trivial. The Mollier diagram for water that I have has abscissa Enthalpy and ordinate Pressure. So the glib statement that a simple flip gets you from one to the other seems not entirely correct.

That said, I think it would be great to have a high-quality Mollier diagram for moist air. Do you have any images (e.g., scan a textbook)?

I created the Psychrometric Chart from an image I found in a Carrier manual. I could do the same for the Mollier diagram. And perhaps in the process I might finally understand the physics behind the latter.


 * Hi, it's me again. The reason of forcing you to cs:Wikipedista diskuse:Jx was that it is my Czech discussion page and I visit that page much more often than any other discussion page. But never mind.
 * It seems like we first must make agreement what the Mollier diagram is. Please look into cs:Mollierův diagram. Right now (14th November 2009) there are three pictures. One of them is Mollier diagram for moist air (with german description). The second one is your Psychrometric chart which really looks like the first one but flipped. (One axis is the water in the air [g/kg], second axis is temperature [Celsius].) And the third picture represents something called "Mollier diagram for water steam". (On axes there are enthropy and enthalpy.) Seems like there are two Mollier diagrams. :) --EnJx (talk) 17:17, 14 November 2009 (UTC)

In re: What makes an image "stale"?
Your image wasn't marked stale, that request was. When someone requests that an image be modified on at the graphics lab, my archiving bot will mark the request as stale after a certain period of time to alert people that the request has been sitting there a while without a response. If no response comes within a certain period of time after that, the request will be archived. Your image will not be affected by any part of this process, only that request.-- Dycedarg  &#x0436;  16:55, 2 November 2009 (UTC)


 * Thanks for responding to my question on the Graphic_Lab/Image_workshop/Archive/May_2009 page, Dycedarg.

Request for Help with Wikipedia's rendering
I am having problems with this image. It does not render correctly in Wikipedia (see for example, this PNG), albeit does render fine in Mozilla (Firefox), Safari, and Opera on my Macintosh. How do I go about troubleshooting your PNG renderer?
 * You almost had it once. What you want is [[Image:PsychrometricChart-SeaLevel-SI.jpg|thumb|300px|A psychrometric chart for sea-level elevation.]] which will produce what you see on the right.    Fl ee tf la me   ·  whack! whack!  · 20:05, 2 November 2009 (UTC)
 * Thanks for the response, Fleetflame (“Luser Attitude Readjustment Tool”?). I want to stop using the JPEG in the Wikipedia article on Psychrometry and instead use the SVG. The problem I am seeing is that the thumbnails are not being calculated correctly by Wikipedia's SVG->PNG software. In other words, I want to see a nice thumbnail when I do something like [[Image:PsychrometricChart.SeaLevel.SI.svg|thumb|300px|A psychrometric chart for sea-level elevation.]] . What I am getting is shown to the right (I changed the code you put in accordingly).
 * Hey ArthurOgawa, so sorry for the late response: I missed the question somehow. I see now what you're trying to do, and I'm not sure why it isn't rendering.  Try asking at SVG Help, the helpers there are much more familiar with this sort of thing.  Also, a "Luser Attitude Readjustment Tool” is what many of us Wikipedians like to call a "clue-bat." ;-]  One last thing, remember to sign your comments by typing four tildes after them: that way we'll know when you left them.  Hope this helps!    Fl ee tf la me   ·  whack! whack!  · 20:32, 14 November 2009 (UTC)

February 2014
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ArbCom elections are now open!
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Darcy Friction Factor
Hello, I have one question regarding your formulation of the darcy friction factor. How did you derive the functions exp1 to exp3 exactly? The cited paper (Rao and Kumar, 2006) uses another form of the fitting function with different parameters so I wonder where the structure of your fitting function comes from. Could you clarify that, please? Wahlnuss (talk) 10:12, 21 December 2015 (UTC)

Um, you are right to ask. The graph (and accompanying text) should probably confine its discussion to the Colebrook–White equation and Rao and Kumar's fitting function. The curves exp1, exp2, and exp3 are from my own work; they should not be included in the wikipedia article. I will redraw the illustration with Colebrook–White and Rao–Kumar only (this will take about a week's time).ArthurOgawa (talk) 06:38, 27 December 2015 (UTC)

Reference errors on 10 September
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Proposed deletion of George Willis Cooke


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