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Mathematical Modelling 2


The plan of a certain museum is in the shape of a square with a grid of 6×6. Each room is connected to each adjacent room by a door. 923 more words


How to grow your first sample: (2x4)/(4x2) transition 

Faebian Bastiman

The (2×4)/(4×2) RHEED transition is a very useful flux calibration point, since it tells you when your As and Ga fluxes are equal. I described what a (2×4) and a (4×2) reconstruction are in my… 1,249 more words


MBE Dreams: Efficiency of Effusion Cells

Faebian Bastiman

Have you ever wondered what the material delivery efficiency of standard MBE effusion cells actually is? We typically spend on average £2k a year on source materials and £1.5k a year on substrates. 796 more words


Beta beat for Yosemite, right Menu Bar, Memory Diag

Apple releases OS X Yosemite Developer Preview 6, Xcode 6 beta 6 — Apple on Monday issued its sixth beta releases of OS X Yosemite and Xcode 6 to developers… 302 more words

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