Comprendre, choisir et acheter des LEDs UV

Maskless photolithography using UV LEDs.

A UV light emitting diode (LED) with a maximum output of 372 nm was collimated using a pinhole and a small plastic tube and focused using a microscope objective onto a substrate for direct lithographic patterning of the photoresist. Movement of the substrate with a motorised linear stage (syringe pump) allowed lines in SU-8 to be pattered with a width down to 35 microm at a linear velocity of 8...

Leur Application Aux Probabilités Et Spécialement a La Recherche Du Milieu Qu’il Faut Choisir Entre Les Résultats Des Observations

I have given, it has been around thirty years ago, in the Mémoires de l’Académie des Sciences1, the theory of generating functions and that of the approximation of formulas which are functions of large numbers. The first has for object the relations of the coefficients of the powers of an undetermined variable in the development of a function of this variable to the function itself. From the si...

Etude sur l'Agalaxic contagieuse des chèvres et des moutons

The Key to Success in Innovation Part I: the Art of Interessement

Translator’s Note: The original French version of this two-paper series was published as: Akrich, M., Callon, M. & Latour, B. (1988) A Quoi Tient Le Succès des Innovations? 1. L’Art de l’Intéressement. Annales des Mines, Gérer et Comprendre, 11, 4–17 Akrich, M., Callon, M. & Latour, B. (1988) A Quoi Tient Le Succès des Innovations? 2. L’Art de Choisir les Bons Porte-Parole. Annales des Mines, G...

Comprendre et concevoir l'interaction tactile avec identification des doigts. (Understanding and designing touch interaction using finger identification)

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau...