搜索结果: 16-30 共查到“理学 origins”相关记录53条 . 查询时间(0.228 秒)
From atoms to steps:The microscopic origins of crystal evolution
Burton–Cabrera–Frank theory Solid-on-solid model Non-equilibrium statistical mechanics
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2015/10/16
The Burton–Cabrera–Frank (BCF) theory of crystal growth has been successful in describing a wide range of phenomena in surface physics. Typical crystal surfaces are slightly misoriented with respect t...
Origins of Life
Origins of Life Life
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2015/7/31
May 15, 2003 marked the fiftieth anniversary of a paper published in the journal I that revolutionized our thinking about one of the fundamental scientific questions that confronts humanity-how did li...
Finding the origins of life in a drying puddle
origins of life drying puddle
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2015/8/4
Anyone who's ever noticed a water puddle drying in the sun has seen an environment that may have driven the type of chemical reactions that scientists believe were critical to the formation of life on...
The Moving Boundaries of Sea Level Change:Understanding the Origins of Geographic Variability
Sea Level Change Geographic Variability
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2015/7/9
As ice sheets gain or lose mass, and as water moves between the continents and the ocean, the solid Earth deforms and the gravitational field of the planet is perturbed. Both of these effects lead to ...
The Origins of Writing as a Problem of Historical Epistemology
Writing Historical Epistemology
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2015/3/27
The Origins of Writing as a Problem of Historical Epistemology.
The morphological diversities among star-forming galaxies at high redshifts in the great observatories origins deep survey
high-redshift fundamental parameters
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2014/12/24
We used the deep, multiwavelength images obtained by the Great Observatories Origins Deep Survey (GOODS) to identify ~4700 Lyman break galaxies (LBGs) at z > 2.5, and 292 starburst galaxies at z ~ 1.2...
Scientists discover the genomic origins of canola（图）
canola Scientists genomic origins
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2014/9/12
Brassica plants have been bred for centuries and result in produce and products diverse enough to show up in supermarkets all over the world. Brassica napus, more commonly known as rapeseed or canola,...
Disentangling the origins of branched tetraether lipids and crenarchaeol in the lower Amazon River: Implications for GDGT-based proxies
Disentangling the origins branched tetraether lipids crenarchaeol in the lower Amazon River Implications GDGT-based proxies
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2014/4/2
To trace the origin of branched glycerol dialkyl glycerol tetraethers (brGDGTs), their distribution in soils and suspended particulate matter (SPM) of Amazonian rivers and floodplain lakes (va′ rzeas)...
The genetic origins of high-altitude adaptations in Tibetans（图）
Tibetans high-altitude adaptations
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2014/3/21
Genetic adaptations for life at high elevations found in residents of the Tibetan plateau likely originated around 30,000 years ago in peoples related to contemporary Sherpa. These genes were passed o...
Mesolithic man reveals origins of blue eyes, lactose intolerance
Mesolithic blue eyes
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2014/7/9
The discovery of a Stone Age man with the genes for blue eyes and dark skin has revealed that blue eye colour is likely to have spread through the European population earlier than fair skin.
Disordered quantum wires: microscopic origins of the DMPK theory and Ohm's law
Disordered quantum wires microscopic origins the DMPK theory Ohm's law Mathematical Physics
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2012/4/23
We study the electronic transport properties of the Anderson model on a strip, modeling a quasi one-dimensional disordered quantum wire. In the literature, the standard description of such wires is vi...
Origins of Karenia brevis harmful algal blooms along the Texas coast
harmful algal bloom regional ocean modeling system, particle tracking Gulf of Mexico algal bloom
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2014/4/1
The dinoflagellate Karenia brevis is the major harmful algal bloom (HAB) species in the Gulf of Mexico.
Given that the rapid appearance of K. brevis cannot be explained by plankton growth alone...
Air mass origins influencing TTL chemical composition over West Africa during 2006 summer monsoon
Air mass origins TTL chemical composition West Africa 2006 summer monsoon
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2010/11/30
Trace gas and aerosol data collected in the tropical tropopause layer (TTL) between 12–18.5 km by the M55 Geophysica aircraft as part of the SCOUT-AMMA campaign over West Africa during the summer mons...
Integrable Origins of Higher Order Painleve Equations
Exactly Solvable and Integrable Systems (nlin.SI) Mathematical Physics (math-ph)
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2010/11/10
Higher order Painleve equations invariant under extended affine Weyl groups $A^{(1)}_n$ are obtained through self-similarity limit of a class of pseudo-differential Lax hierarchies with symmetry inher...
The Gamma-Ray Background Constrains the Origins of the Radio and X-Ray Backgrounds
cosmic rays gamma rays diffuse background radio continuum galaxies X-rays
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2010/11/9
Cosmic ray protons generate γ-rays, neutrinos, and secondary electrons and positrons (e±) through pionproducing collisions with gas atoms. Any synchrotron or Inverse Compton (IC) radiation from second...