なかのにっき

Biologists dream of a point-and-shoot camera that can reveal details smaller than a wavelength of light in living cells. Now, in an upcoming issue of PRL, researchers show that "two-dimensional" light--short-wavelength light waves that live on a surface--can improve resolution without the expensive equipment and special preparations needed for electron microscopes and other technologies. The team imaged nanoscale holes as a demonstration, but they believe the technique could ultimately take instant shots and even movies of the biological nanoworld.

ACPI disabled because your bios is from 1999 and too old
You can enable it with acpi=force
IBM machine detected. Enabling interrupts during APM calls.
IBM machine detected. Disabling SMBus accesses.
ACPI: RSDP (v000 IBM                                       ) @ 0x000fd6e0
ACPI: RSDT (v001 IBM    TP600X   0x00000001  0x00000000) @ 0x0bfd0000
ACPI: FADT (v001 IBM    TP600X   0x00000001  0x00000000) @ 0x0bfd0100
ACPI: DSDT (v001 IBM    TP600X   0x00000106 MSFT 0x0100000c) @ 0x00000000

sroep [--directory=DIR] --cc=CENTER_CHANNEL --hw=HALF_WIDTH [--debug]

• --directory はデータディレクトリ。省略するとカレントディレクトリ。
• --cc は対象となるチャンネル範囲の中心。
• --hw は対象となるチャンネル範囲の幅。cc-hw〜cc+hw が対象になる。
• --debug を指定すると、チャネル範囲の測定データ・gaussfit のコマンドライン・gaussfit への STDIN と結果の STDOUT, STDERR を標準出力に表示する。

  my $AI = sprintf "%f", $imax;
  my $AU = sprintf "%f", 2 * $imax;
  my $AL = sprintf "%f", 0.3 * $imax + 0.7 * $imin;

  my $CI = sprintf "%f", $CCH;
  my $CL = sprintf "%f", $CCH - 2;
  my $CU = sprintf "%f", $CCH + 2;

  my $BI = sprintf "%f", $imin;
  my $BL = sprintf "%f", $imin - $sigma;
  my $BU = sprintf "%f", 0.7 * $imax + 0.3 * $imin;

  my $WI = sprintf "%f", 1.5;
  my $WL = sprintf "%f", 0.5;
  my $WU = sprintf "%f", 3.0;

$DEBUG = 0;
$result = GetOptions ("dir=s" => \$DIR,
                      "cc=i"  => \$CCH,
                      "hw=i"  => \$HWC,
                      "debug"  => \$DEBUG);
  :
if ($DEBUG) {もげもげ}

Molecular dynamics (MD) methods with a modified Tersoff potential have been used to simulate high-energy (50 keV) displacement cascades in β-SiC. The results show that the cascade lifetime is very short, 10 times shorter than that in metals, and the surviving defects are dominated by C interstitials and vacancies, which is similar to behavior for 10 keV cascades in SiC. Antisite defects are generated on both sublattices. Although the total number of antisite defects remaining at the end of the cascade is smaller than that of Frenkel pairs, the number of Si antisites is larger than the number of Si interstitials. Most surviving defects are single interstitials and vacancies, and only 19% of the interstitial population is contained in clusters. The size of the interstitial clusters is small, and the largest cluster found, among all the cascades considered, contained only four interstitial atoms, which is significantly different behavior than obtained by MD simulations in metals. It is observed that all clusters are created by a quenched-in mechanism directly from the collisional phase of the cascade to their final arrangements. The initial Si recoil traveled about 65 nm on average, generating multiple subcascades and forming a dispersed arrangement in the cascade geometry. These results suggest that in-cascade or direct-impact amorphization in SiC does not occur with any high degree of probability during the cascade lifetime of Si cascades, even with high-energy recoils, consistent with previous experimental and MD observations.