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Darwin    音标拼音: [d'ɑrwɪn]
n. 达尔文

达尔文

Darwin
n 1: English natural scientist who formulated a theory of
evolution by natural selection (1809-1882) [synonym: {Darwin},
{Charles Darwin}, {Charles Robert Darwin}]
2: provincial capital of the Northern Territory of Australia

1. An {operating system} based on the
{FreeBSD} version of {Unix}, running on top of a {microkernel}
({Mach} 3.0 with darwin 1.02) that offers advanced networking,
services such as the {Apache} {web server}, and support for
both {Macintosh} and Unix {file systems}. Darwin was
originally released in March 1999. It currently runs on
{PowerPC} based Macintosh computers, and, in October 2000, was
being ported to {Intel} processor-based computers and
compatible systems by the Darwin community.

2. A general purpose structuring tool of
use in building complex {distributed systems} from diverse
components and diverse component interaction mechanisms.
Darwin is being developed by the Distributed Software
Engineering Section of the Department of Computing at
{Imperial College}. It is in essence a {declarative} binding
language which can be used to define hierarchic compositions
of interconnected components. Distribution is dealt with
orthogonally to system structuring. The language allows the
specification of both static structures and dynamic structures
which evolve during execution. The central abstractions
managed by Darwin are components and services. Bindings are
formed by manipulating references to services.

The {operational semantics} of Darwin is described in terms of
the {Pi-calculus}, {Milner}'s calculus of mobile processes.
The correspondence between the treatment of names in the
Pi-calculus and the management of service references in Darwin
leads to an elegant and concise Pi-calculus model of Darwin's
{operational semantics}. The model has proved useful in
arguing the correctness of Darwin implementations and in
designing extensions to Darwin and reasoning about their
behaviour.

{Distributed Software Engineering Section
(http://www-dse.doc.ic.ac.uk/)}. {Darwin publications
(http://scorch.doc.ic.ac.uk/dse-papers/darwin/)}.

E-mail: Jeff Magee , Naranker Dulay
.

3. {Core War}.

(2003-08-08)

Darwin, CA -- U.S. Census Designated Place in California
Population (2000): 54
Housing Units (2000): 54
Land area (2000): 1.375511 sq. miles (3.562558 sq. km)
Water area (2000): 0.000000 sq. miles (0.000000 sq. km)
Total area (2000): 1.375511 sq. miles (3.562558 sq. km)
FIPS code: 18030
Located within: California (CA), FIPS 06
Location: 36.268417 N, 117.591970 W
ZIP Codes (1990):
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords:
Darwin, CA
Darwin


Darwin, MN -- U.S. city in Minnesota
Population (2000): 276
Housing Units (2000): 130
Land area (2000): 0.748639 sq. miles (1.938965 sq. km)
Water area (2000): 0.078103 sq. miles (0.202287 sq. km)
Total area (2000): 0.826742 sq. miles (2.141252 sq. km)
FIPS code: 14842
Located within: Minnesota (MN), FIPS 27
Location: 45.096031 N, 94.405669 W
ZIP Codes (1990): 55324
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords:
Darwin, MN
Darwin


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  • Charles Darwin - Wikipedia
    Charles Robert Darwin ( ˈdɑːrwɪn [5] DAR-win; 12 February 1809 – 19 April 1882) was an English naturalist, geologist, and biologist, [6] widely known for his contributions to evolutionary biology
  • Charles Darwin | Biography, Education, Books, Theory of Evolution . . .
    Charles Darwin, the renowned British naturalist and father of evolutionary theory, revolutionized our understanding of life on Earth through his groundbreaking work "On the Origin of Species," forever changing how we view ourselves and all living organisms
  • Charles Darwin - Theory, Book Quotes - Biography
    Charles Darwin was a British naturalist who developed a theory of evolution based on natural selection His views, and “social Darwinism,” remain controversial
  • Charles Darwin - Education
    Charles Darwin and his observations while aboard the HMS Beagle, changed the understanding of evolution on Earth
  • Charles Darwin: History’s most famous biologist
    Charles Robert Darwin, 1809-1882, was one of the greatest British scientists who ever lived He transformed the way we understand the natural world with his theory of evolution by natural selection
  • Charles Darwin: Biography, Theories, Contributions - Verywell Mind
    Charles Darwin was a renowned British naturalist and biologist best known for his theory of evolution through natural selection His theory that all life evolved from a common ancestor is now a cornerstone of modern science, making Darwin one of the most influential individuals in history
  • About Darwin | Darwin Correspondence Project
    To many of us, Darwin's name is synonymous with his theory of evolution by natural selection But even before the publication of On the Origin of Species in 1859, he was publicly known through his popular book about the voyage of the Beagle, and he was esteemed by scientific colleagues for his work in geology and zoology
  • Charles Darwin - New World Encyclopedia
    Charles Robert Darwin (February 12, 1809 – April 19, 1882) was a British naturalist who achieved fame as originator of the theory of evolution through natural selection Considered the "father of evolutionary theory," Darwin made two contributions of enormous impact to the idea of evolution
  • Charles Darwin Spotlight | Learn Science at Scitable - Nature
    In this Spotlight, we survey the three acts of Darwin's extended life: his formative years, his major scientific discoveries, and the dynamic and compounding impact of his ideas on human
  • Natural Selection: Charles Darwin Alfred Russel Wallace
    Explore the history of evolutionary thought and the concept of natural selection by Charles Darwin and Alfred Russel Wallace





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