Injection molding of micro-precision components / Jochen Heneka in KUNSTSTOFFE INTERNATIONAL, Vol. 105, N° 5 (05/2015)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 105, N° 5 (05/2015) . - p. 21-23 Titre : Injection molding of micro-precision components : LIGA2.X - Almost unlimited lateral design freedom for molded parts with a weight of less than 1 mg Type de document : texte imprimé Auteurs : Jochen Heneka, Auteur ; Jürgen Schray, Auteur ; Werner Schneider, Auteur Année de publication : 2015 Article en page(s) : p. 21-23 Langues : Anglais (eng) Catégories : Matières plastiques -- Moulage par micro-injection Index. décimale : 668.4 Plastiques, vinyles Résumé : Micromanufacturing - The production of micro-precision components, which can only just be seen with the naked eye and have a weight corresponding to a fraction of a granulate grain, place high demands on the machine as well as the mold technology. Precisely controlled injection molding machines with micro-injection unit and mold inserts produced using the X-ray LIGA process offer access to minute molded parts with a high aspect ratio. Note de contenu : - Separate plasticizing and injection screws - Mold with ejectorless demolding concept - Puzzles with micro components En ligne : https://drive.google.com/file/d/1H6UlD3fQx_HX7CInHmZby7hMVyXDnNBi/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24112 [article]

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Multicenter study on measurement of the natural pH of the skin surface / Doerte Segger in IFSCC MAGAZINE, Vol. 10, N° 2 (04-05/2007)

[article]  inIFSCC MAGAZINE > Vol. 10, N° 2 (04-05/2007) . - p. 107-110 Titre : Multicenter study on measurement of the natural pH of the skin surface Type de document : texte imprimé Auteurs : Doerte Segger, Auteur ; Uwe Aßmus, Auteur ; Michael Brock, Auteur ; Jessica Erasmy, Auteur ; P. Finkel, Auteur ; Andreas Fitzner, Auteur ; Helgard Heuss, Auteur ; Uta Kortemeier, Auteur ; Sven Munke, Auteur ; Thomas Rheinländer, Auteur ; H. Schmidt-Lewerkuhne, Auteur ; Werner Schneider, Auteur ; Gabriele Weser, Auteur Année de publication : 2007 Article en page(s) : p. 107-110 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'pH  naturel  'Peau  humaine'  'Avant-bras' Index. décimale : 668.5 Parfums et cosmétiques Résumé : Characterization of the skin's natural state is very important for understanding skin functions and describing disturbances of skin function. In the field of cosmetics and dermatologicals the natural pH of the skin surface plays an important role in the development of products with a skin neutral pH. In a multicenter study the natural pH of the skin surface (exception of underarm and genital areas), was to be measured. It was to be determined whether gender-specific differences in the pH occur. The skin surface pH was measured on the inside of the forearms in 222 volunteers (147 female, 75 male) using the skin pH meters of the respective institutes. The pH was measured in triplicate on adjacent areas 24 h after the last contact of the measuring site with water, topical applications and an intensive washing procedure. The values of the skin surface pH were 4.9 (arithmetic mean). The 95% interval was between 4.1 and 5.8. The pH on the forearm of the male volunteers was slightly lower than that of the females. The difference was statistically significant (p < 0.01; 4.8 to 5.0). The authors suggest that the GDCh recommendations for the claims »skin neutral pH«, »ideal pH« or »skin-friendly pH« should be revised and propose a pH range of 4.1 to 5.8 for the main body areas excluding the underarm and genital areas. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10419 [article]

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