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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 [4] DAR-win; 12 February 1809 – 19 April 1882) was an English naturalist, geologist, and biologist, [5] 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 - Education
    Darwin’s analysis of the plants and animals he gathered led him to question how species form and change over time This work convinced him of the insight that he is most famous for— natural selection
  • Home | Charles Darwin: A Life in Stories
    At the age of 22, Charles Darwin set sail on a journey that would transform his life and our view of the natural world His life experiences provide many stories that can inform, delight and challenge
  • 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
  • Darwin, Charles | Internet Encyclopedia of Philosophy
    The first edition of Darwin’s Origin is now that most commonly read by scholars, as it presents Darwin’s argument most clearly, without his extensive responses to later critics
  • Who Was Charles Darwin? The Man Who Changed How We Understand Life on Earth
    Charles Darwin died on April 19, 1882, at the age of seventy-three He had lived long enough to see many of his ideas vindicated and his name celebrated, though controversy still swirled
  • 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
  • Guide to Darwin - Tourism Australia
    From incredible sunset cruises and crocodile encounters to Asian food markets and open air movies, discover it all at Darwin, Australia's unhurried capital
  • Educate - Darwin Day
    Filled with the fascinating words of Charles Darwin—designed as handwritten entries—this picture book biography reveals the assembling of Darwin’s profound discovery: evolution of species by natural selection





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