By Tien T. Tsong
Atom-probe box ion microscopy is presently the one method able to imaging good surfaces with atomic solution, and while of chemically studying floor atoms chosen via the observer from the sphere ion photo. box ion microscopy has been effectively used to check such a lot metals and lots of alloys, and lately reliable box ion photos of a few semiconductors or even ceramic fabrics corresponding to extreme temperature superconductors were received. even supposing different microscopies are in a position to attaining a similar answer, there are a few experiments targeted to box ion microscopy--for instance the learn of the habit of unmarried atoms and clusters on a superior floor. The very stylish improvement of the sector ion microscope with the atom-probe has supplied a robust and helpful process for hugely delicate chemical research. This e-book provides the elemental ideas of atom-probe box ion microscopy and illustrates a number of the functions of the method within the research of strong surfaces and interfaces at atomic solution.
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Extra resources for Atom-Probe Field Ion Microscopy: Field Ion Emission, and Surfaces and Interfaces at Atomic Resolution
0 Pi. Overclocking Raspbian Linux for the Raspberry Pi is conservatively configured for reliability by default. Those with the need for speed can reconfigure it for increased performance but at the risk of less-reliable operation. 11 provides a raspi-config menu of five CPU profiles. The profile None is the default: Profile ARM CPU Core SDRAM Overvolt None 700 MHz 250 MHz 400 MHz 0 Modest 800 MHz 250 MHz 400 MHz 0 Medium 900 MHz 250 MHz 450 MHz 2 High 950 MHz 250 MHz 450 MHz 6 Turbo 1 GHz 500 MHz 600 MHz 6 The raspi-config requires root privileges and is started as follows: $ sudo raspi-config The initial menu screen provides an overclock selection with the description Configure overclocking.
Now, however, there is little reason to. Every attempt was made to keep the project programs in this book simple. This usually meant also avoiding threads. Yet, a few projects would have been more complicated without them. In the example using ØMQ, threads would have been present behind the scenes, even if we didn’t see them in our application code. With that introduction, let’s take a crash course on the pthread API as it applies to Raspbian Linux. h> When linking programs compiled to use pthreads, add the linker option: -lpthread: Link with the pthread library.
Table 5-1. 0 as 10M: 10/100 Mbit link OK or ACT LED This green LED indicates SD card I/O activity. c in arm/mach-bcm2708). PWR LED This red LED simply indicates that the Raspberry Pi has power. 3 V regulator. 29 Chapter 5 ■ Header Strips, LEDs, and Reset Figure 5-1. Power LED The power LED indicator is not necessarily an indication that the power is good. It simply indicates that power is present. The LED can be lit and still not have sufficient voltage present for the CPU to operate correctly.
Atom-Probe Field Ion Microscopy: Field Ion Emission, and Surfaces and Interfaces at Atomic Resolution by Tien T. Tsong