sheerdns is a master DNS server whose zone records are stored on a One-Record-Per-File bases. Because of this, it is the simplest of any DNS to configure, the easiest to update, and the most efficient for networks that experience a lot of updates (for example master servers for dynamic IP address ranges). You never have to restart it; any updates are available immediately without having to notify the sheerdns process. 來源: http://freshmeat.net/projects/sheerdns/?topic_id=149 sheerdns是一個主DNS服務(wù)器，它的域記錄保存在一個One-Record-Per-File（每文件一個記錄）的庫中。因此，它是最簡單的DNS配制，最容易更新，對于有大量更新的網(wǎng)絡(luò)（如動態(tài)IP地址范圍的主服務(wù)器）來說它是最高效的。你不必重新啟動它，任何更新不用通知對應(yīng)DNS進程就可以立即生效。
Contains a complete archiver by Haruhiko Okumura. The archiver uses
an LZ engine whose output is compressed with static Huffman. The
file is chopped into pieces which all get their own independent
set of Huffman tree s. ARJ 2.41, ZIP 2.0 and PKZIP 2.04g use
essentially the same method. ZOO and LHA even use excactly the
same method.
Algorithms for the estimation of a channel whose
impulse response is characterized by a large number of zero
tap coefficients are developed and compared.
This demo shows the use of the PWM block in generating the pulse waveform whose duty cycle is changing regularly. The PWM waveform period is variable, while the width of the pulse remains constant.
Lex helps write programs whose control flow is directed by instances of regular
expressions in the input stream. It is well suited for editor-script type transformations
and for segmenting input in preparation for a parsing routine.
G
UILLAIN-BARRéSYNDROME(GBS)is an uncommon disorder,but one
whose impact is far out of proportion to its incidence.Despite a
usually good prognosis,GBS is a particularly frightening and often life-
altering experience for those diagnosed with the disorder.Many patients
are acutely aware of the rapid loss of control of their muscular function,
including vital functions such as breathing and swallowing,and fre-
quently feel that they are dying.The experience is almost as unnerving
for the families of affected individuals.During the acute phase of the ill-
ness GBS patients experience the indignity of helplessness in addition to
their fear of death or permanent disability.Prolonged disability is com-
mon and some permanent residual effects are becoming increasingly
recognized.It has been our experience in meeting patients at support
groups,that individuals who have been affected by GBS have a great
desire for a better understanding of the disorder,even years after the
acute experience.
