![]() The Debye temperature shows positive correlation with density of the mineral phases in the Al 2O 3-SiO 2-H 2O ternary system. We also note that the Debye temperature ( Θ D) of topaz at room temperature condition is 910 K and decreases at higher temperature. The effect of composition ( x O H) on the velocity is equally important as that of the effect of temperature. The elasticity and sound velocity of topaz also vary as a function of OH and F content. As a function of temperature, the sound velocity of topaz decreases with d V P d T and d V S d T being −3.10 and −2.30 × 10 −4 km/s/K. We find that among the various minerals stable in the Al 2O 3-SiO 2-H 2O ternary system, topaz exhibits moderate elastic anisotropy. We also explored the temperature dependence of the full elastic constant tensor. We investigated elasticity of naturally occurring single crystal topaz (Al 2SiO 4F 1.42(OH) 0.58) using Resonant Ultrasound Spectroscopy. In nature, topaz often exhibits solid solution between fluorine and hydrous end members. I'll let you know what I discover, but it won't be tonight.Topaz is an aluminosilicate mineral phase stable in the hydrothermally altered pegmatitic rocks and also in subducted sedimentary lithologies. Okay, I'm going in for the purchase on both Topaz Studio 2 and PhotoDonut. I'll let you know what I discover, but it won't be tonight. I don't have a problem paying for *some* some of the time, but not a fan of being nickled and dimed to death. ![]() ![]() It is confusing because TOPAZ Studio 2 now INCLUDES all the things you all have been buying separately, and then looking at this you *might* be inclined to infer that it, too, is incluided free, but I think I am reading it as "you have access to the shop where you can download some free ones and some you will pay for". " Browse and download from a wide selection of eye-catching photo and artistic effects, brushes and textures.Įverything is free with your purchase of PhotoDonut 2!" Get hooked on the mind-blowing array of image filters, with freerange over the StyleShop’s collection." " A built-in shop available from directly inside the program, filled with eye candy just waiting for you to devour. Good News! PhotoDonut 2 gets you access to both types of packs!" "There are two types of items in our shop: packs you can download for free, and packs you can buy. I've just checked out PhotoDonut but I think the text is confusing - are all packs free, or what?: I seldom use DAP straight out, but man, it sure makes a huge difference in my work! My few layer tricks seem to work with almost every DAP image overlay (no secret recipes here, I'm happy to share my specific techniques, but maybe we should start a new thread for that (maybe "Post Render Tools and Techniques"?). I use it to create a version that I usually use Layer effects in Photoshop to 'Overlay', fade out, or 'Soft Light', 'Multiply' etc. I'm not sure what you gain or lose between versions, but I use it enough to just keep it up to date without question. Which version of DAP do you have, I cannot decide if I need the Pro, price wise the home edition suits me much better but if it turns out its too restricted I'd rather get the pro straight off. Thanks for all the info and examples here. I've heard of TOPAZ and I guess I need to get serious about checking it out. I use Filter Forge A LOT, PhotoLemur some, and also Dynamic Auto Painter (DAP) with Photoshop and LOVE it! These all contribute to my happiness and creativity.
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