AWPP 2012 Report Alloys, Blends & Composites

Quantum interpretations of AWPP and APP

Tomoyuki Morimae ∗ and Harumichi Nishimura † ASRLD Unit, Gunma University, 1-5-1 Tenjin-cho Kiryu-shi Gunma-ken, 376-0052, Japan 2 Graduate School of Information Science, Nagoya University, Chikusa-ku, Nagoya, Aichi, 464-8601 Japan Abstract AWPP is a complexity class introduced by Fenner, Fortnow, Kurtz, and Li, which is defined using GapP functions. Although it is an important class as the bes...

Modified group non-membership is in AWPP

François Le Gall Department of Computer Science, The University of Tokyo, 7-3-1 Hongo, Bunkyoku, Tokyo, 113-8656, Japan Abstract It is known that the group non-membership problem is in QMA relative to any group oracle and in SPP∩BQP relative to group oracles for solvable groups. We consider a modified version of the group non-membership problem where the order of the group is also given as an a...

Additive Manufacturing of Al Alloys and Aluminium Matrix Composites (AMCs)

European Competitiveness Report 2012

Constant Volume Explosions of Aerosols of Metallic Mechanical Alloys and Powder Blends

High-energy ball milling was used to prepare sets of mechanical alloys in the systems Al–Mg, Al–Mg–H, B–Mg, and Ti–B. X-ray diffraction, electron microscopy, and low-angle laser diffraction were used to characterize structures, morphology, and sizes of the alloys, respectively. The produced materials were metastable and nanocrystalline; the particle sizes were in the range of 1–501m. A constant...