Articles
in English
Quantum Physics: Doesn't the atom in ground state radiate?
Textbooks told us that the atom in ground state does not radiate and this is contradicted with
the classical electrodynamics. The classical electrodynamics says that the accelerating charges always emit
electromagnetic waves......
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in English
Fractal: The Mandelbrot Set's Image Generation through Accurate Computation - C++/GMP Implementation and Verification
Massive floating point computation is normally needed to generate fractal images. This requires very high
capacity of computation. Common floating point calculation will inevitably meet the problem of error. Without
error analysis, the correctness of the result is hard to justify.
In computing the Mandelbrot set, I restrict the computation range to those of finite decimals, so to
run absolutely accurate calculations......
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in English
Web site: "Process Backup" of Server Programs
I am trying to construct a web site. As a software developer, he worries about server crash most. Even
the server can be restarted, some resources get lost. This incurs one need: can there be a backup copy for recovery
of the crashed server program as same as the recovery from suffering a data loss through data backup ? I ever read
about "passing file descriptor" in Richard Stevens' Advanced Programming in the UNIX Environment. This powerful
ability, which is like 'dup/dup2', but between processes, has some meaning of generating a 'backup copy'. And this
leads me to an idea to use it to realize "process backup". Of course, it is not a process image backup, but to back
up file descriptors in a process, including the networking sockets I wish to handle.
I wrote a small program to try this idea and succeeded. Need to test it in server program for large-scale
service......
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in English
The Making of This Site's Index Web Log Page: Using METAFONT
If you feel a bit interested in images on this website's index web log page, this article
introduces it......
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in English
Link To Chen's fast DCT
A c and mmx/HLA implementation of a fast DCT algorithm by Chen......
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in English
A Wonderful Paper Introducing Ewald-Oseen Extinction Theorem
The paper talked about in the title illustrated the proof of Ewald-Oseen theorem
in detail, which I reckon rare and wonderful......
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Notes
Sorry, this part doesn't get an English translation. If you want to have
a look at the Chinese version, it is
here ...
Photos
in English
Visit the OVC Expo
It is the 2016 OVC Expo ...
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