News tagged with code
Trade-off coding for quantum communication provides more benefits than previously thought
(Phys.org) -- In optical communication systems, the overall performance depends on the strategy used to transmit photons from one location to another. In previous attempts to optimize this performance, scientists ...
Apr 16, 2012 |
4.4 / 5 (9) |
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Physicists investigate fate of five-dimensional black strings
(PhysOrg.com) -- While black holes in four-dimensional space-time are stable and can persist for a long time, their higher-dimensional analogues are usually unstable. One such theoretical analogue is a five-dimensional ...
Sep 10, 2010 |
4.5 / 5 (36) |
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The elusive capacity of data networks
In its early years, information theory — which grew out of a landmark 1948 paper by MIT alumnus and future professor Claude Shannon — was dominated by research on error-correcting codes: How do yo ...
Technology / Computer Sciences
May 15, 2012 |
4.6 / 5 (7) |
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Samsung patent wants to get in user's face
(Phys.org) -- Samsung phones of the future may tell if you are happy, sad, or altogether disgusted. Samsung has filed for a patent on a method and device that can tell a user’s emotions based on facial ...
Technology / Hi Tech & Innovation
Apr 27, 2012 |
3 / 5 (3) |
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Researchers discover new layer of genetic information that helps determine how fast proteins are produced
A hidden and never before recognized layer of information in the genetic code has been uncovered by a team of scientists at the University of California, San Francisco (UCSF) thanks to a technique developed ...
Mar 28, 2012 |
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New error-correcting codes guarantee the fastest possible rate of data transmission
Error-correcting codes are one of the triumphs of the digital age. They’re a way of encoding information so that it can be transmitted across a communication channel — such as an optical fiber o ...
Technology / Computer Sciences
Feb 10, 2012 |
4.8 / 5 (12) |
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Nanotube growth theory experimentally confirmed
(PhysOrg.com) -- The Air Force Research Laboratory in Dayton, Ohio, has experimentally confirmed a theory by Rice University Professor Boris Yakobson that foretold a pair of interesting properties about nanotube ...
Nanotechnology / Nanomaterials
Jan 30, 2012 |
4.9 / 5 (10) |
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Building crystalline materials from nanoparticles and DNA
Nature is a master builder. Using a bottom-up approach, nature takes tiny atoms and, through chemical bonding, makes crystalline materials, like diamonds, silicon and even table salt. In all of them, the properties of the ...
Nanotechnology / Nanomaterials
Oct 13, 2011 |
5 / 5 (3) |
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'Perfect plastic' created
(PhysOrg.com) -- Researchers at the University of Leeds and Durham University have solved a long-standing problem that could revolutionize the way new plastics are developed.
Sep 29, 2011 |
4.6 / 5 (24) |
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Are genes our destiny? 'Hidden' code in DNA evolves more rapidly than genetic code, scientists discover
A "hidden" code linked to the DNA of plants allows them to develop and pass down new biological traits far more rapidly than previously thought, according to the findings of a groundbreaking study by researchers ...
Sep 16, 2011 |
4.5 / 5 (27) |
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'Synthetic' chromosome permits repid, on-demand 'evolution' of yeast
In the quest to understand genomes -- how they're built, how they're organized and what makes them work -- a team of Johns Hopkins researchers has engineered from scratch a computer-designed yeast chromosome ...
Sep 14, 2011 |
4.3 / 5 (3) |
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Genetic code used to engineer a living protein
Yale University researchers have successfully re-engineered the protein-making machinery in bacteria, a technical tour de force that promises to revolutionize the study and treatment of a variety of diseases.
Aug 25, 2011 |
5 / 5 (10) |
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Packaging process for genes discovered
Scientists at Penn State University have achieved a major milestone in the attempt to assemble, in a test tube, entire chromosomes from their component parts. The achievement reveals the process a cell uses ...
May 19, 2011 |
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Robots learn to share, validating Hamilton's rule (w/ video)
Using simple robots to simulate genetic evolution over hundreds of generations, Swiss scientists provide quantitative proof of kin selection and shed light on one of the most enduring puzzles in biology: Why ...
May 03, 2011 |
4.9 / 5 (14) |
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Mutant mouse reveals new wrinkle in genetic code
(PhysOrg.com) -- Call it a mystery with a stubby tail: an odd-looking mouse discovered through a U.S. government breeding program in the 1940s that had a short, kinky tail and an extra set of ribs in its neck ...
Apr 28, 2011 |
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Code
A code is a rule for converting a piece of information (for example, a letter, word, phrase, or gesture) into another form or representation (one sign into another sign), not necessarily of the same type.
In communications and information processing, encoding is the process by which information from a source is converted into symbols to be communicated. Decoding is the reverse process, converting these code symbols back into information understandable by a receiver.
One reason for coding is to enable communication in places where ordinary spoken or written language is difficult or impossible. For example, semaphore, where the configuration of flags held signaller or the arms of a semaphore tower encodes parts of the message, typically individual letters and numbers. Another person standing a great distance away can interpret the flags and reproduce the words sent.
For more information about Code, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
