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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 - Evolution, Natural Selection, Species | Britannica
    Darwin had himself lost the last shreds of his belief in Christianity with the tragic death of his oldest daughter, Annie, from typhoid in 1851 The world was becoming safer for Darwin and his theory: mid-Victorian England was stabler than the “hungry Thirties” or turbulent 1840s
  • Charles Darwin Facts | Britannica
    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
  • Evolution: Darwin - PBS
    Why does Charles Darwin's "dangerous idea" matter more today than ever, and how does it explain the past and predict the future of life on Earth?
  • 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 - Evolution, Natural Selection, Theory | Britannica
    Darwin argued that female birds were choosing mates for their gaudy plumage Darwin as usual tapped his huge correspondence network of breeders, naturalists, and travelers worldwide to produce evidence for that Such “ sexual selection” happened among humans too
  • Darwin, Northern Territory - Wikipedia
    It is the smallest, wettest, and most northerly of the Australian capital cities and serves as the Top End 's regional centre Darwin's proximity to Southeast Asia makes it a key link between Australia and countries such as Indonesia and Timor-Leste
  • Charles Darwin’s theory of evolution by natural selection | Britannica
    Learn about Charles Darwin’s theories of evolution and his famous work On The Origin Of Species
  • 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





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