TECH - IA : Google et l'intelligence. LE CERVEAU À TOUS LES NIVEAUX! La migration des interneurones corticaux. Des robots qui apprennent. Le dualisme cartésien est-il mort ? Will 3-D printing be hampered by DRM? According to MIT Technology Review (Nathan Myhrvold’s Cunning Plan to Prevent 3-D Printer Piracy) something akin to copyright may be in the future of 3-D printing. Replicator: MakerBot’s new 3-D printer (Technology Review) Nathan Myhrvold is the former CTO of Microsoft and a great lover of patents. He adores their ability to bring in financial gains by going after other people’s patent violations. Some even call him a patent troll, suggesting he does that professionally. Technology Review says Myhrvold, through his ‘Intellectual Ventures’ company, has taken out a patent for a system to digitally sign a file that specifies how to print a three-dimensional physical object. While the article is rather neutral, the comments explore both sides of the coin, and many of them discuss the likelihood of some control scheme like this succeeding or not.
Sswaner, another one of the commenters, puts it succinctly:“The title is misleading. The EFF and ‘prior art’ To get involved with the search… Quantum dot. Colloidal quantum dots irradiated with a UV light. Different sized quantum dots emit different color light due to quantum confinement. Researchers have studied applications for quantum dots in transistors, solar cells, LEDs, and diode lasers. They have also investigated quantum dots as agents for medical imaging and as possible qubits in quantum computing. Electronic characteristics of a quantum dot are closely related to its size and shape. For example, the band gap in a quantum dot which determines the frequency range of emitted light is inversely related to its size. In fluorescent dye applications the frequency of emitted light increases as the size of the quantum dot decreases.
Quantum confinement in semiconductors[edit] 3D confined electron wave functions in a quantum dot. In a semiconductor crystallite whose diameter is smaller than the size of its exciton Bohr radius, the excitons are squeezed, leading to quantum confinement. Band gap energy Confinement energy Bound exciton energy. Éliminer ou réduire. Quelle autonomie pour les sciences sociales ?