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Chemoautotrophy at Deep-Sea Vents:Past,Present,and Future
Deep-Sea Vents Past Present Future
2015/7/14
Chemolithoautotrophic microorganisms are at the nexus of hydrothermal systems by effectively transferring the energy from the geothermal source to the higher trophic levels. While the validity of this...
Shifting Baselines:The Past and the Future of Ocean Fisheries
Shifting Baselines Past and the Future Ocean Fisheries
2015/7/14
The term "shifting baselines" refers to the way in which significant changes to an ecosystem are measured against previous baseline states, which themselves are significantly different from the origin...
Global Climate and Sea Level:Enduring Variability and Rapid Fluctuations Over the Past 150,000 Years
Global Climate Sea Level Enduring Variability Rapid Fluctuations Past 150,000 Years
2015/7/9
Although climate variations and sea level changes are often discussed interchangeably, climate change need not always result in sea level change. Perturbations in Earth's orbit cause major climate cha...
High-order accurate simulation of low-Mach laminarow past two side-by-side cylinders with Spectral Dfference method
low-Mach laminarow simulation
2015/6/23
This report presents development of a two-dimensional solver for compressible viscous
ow using Spectral Dierence (SD) method and its applications on simulating laminar
ow past two cylinders. The ...
The Amaldi Conferences. Their Past and Their Potential Future
Amaldi Conferences Their Past Their Potential Future
2015/3/26
In 1986 the President of the U.S. National Academy of Sciences extended invitations to the Academies of Sciences of Western Europe to create a Committee of European scientists who would join the exist...
Smothered oceans: Extreme oxygen loss in oceans accompanied past global climate change
Smothered oceans Extreme oxygen loss oceans accompanied past global climate change
2015/3/4
Seafloor sediment cores reveal abrupt, extensive loss of oxygen in the ocean when ice sheets melted roughly 10,000-17,000 years ago, according to a study from the University of California, Davis. The ...
RECONSTRUCTING PAST ANTARCTIC ICE FLOW PATHS IN THE ROSS EMBAYMENT, ANTARCTICA USING SAND PETROGRAPHY, PARTICLE SIZE AND DETRITAL ZIRCON PROVENANCE
Provenance Antarctica zircons Till
2015/1/16
Tills for this study were analyzed from sites in East Antarctica (EA), West Antarctica (WA) and along a transect in the Ross Sea. Particle size, sand petrography, and detrital zircons were used to pro...
On a tropical island, fossils reveal the past – and possible future – of polar ice
On a tropical island, fossils reveal the past possible future polar ice
2015/1/20
The balmy islands of Seychelles couldn’t feel farther from Antarctica, but their fossil corals could reveal much about the fate of polar ice sheets.About 125,000 years ago, the average global temperat...
Back to the future? Past global warming period echoes today's
Back to the future Past global warming period echoes today's
2014/12/30
The rate at which carbon emissions warmed Earth's climate almost 56 million years ago resembles modern, human-caused global warming much more than previously believed, but involved two pulses of carbo...
The findings mean the so-called Paleocene-Eocene thermal maximum, or PETM, can provide clues to the future of modern climate change. The good news: Earth and most species survived. The bad news: It to...
GEOCLIM reloaded (v 1.0): a new coupled earth system model for past climate change
Coupling The earth system model The atmosphere Weathering module Space Ocean circulation model Marine biological geochemistry
2014/12/9
We present a new version of the coupled Earth system model GEOCLIM. The new release, GEOCLIM reloaded (v 1.0), links the existing atmosphere and weathering modules to a novel, temporally and spatially...
Exploring Isotopic Signatures of Lake El'gygytgyn Sediments for Evidence of Anoxia and Methane Cycling over the Past 50,000 Years
Exploring Isotopic Signatures Lake El'gygytgyn Sediments Evidence of Anoxia and Methane Cycling over the Past 50,000 Years
2014/10/21
Compound specific isotope analysis of lake sediments is a powerful tool in deciphering evidence of changing climatic and paleoenvironmental conditions through time. Isotopic analysis of Lake El’gygytg...
A Speleothem-Based High Resolution Reconstruction of Climate in Southeastern Brazil Over the Past 4,100 Years
A Speleothem-Based High Resolution Reconstruction Climate in Southeastern Brazil Over the Past 4,100 Years
2014/10/21
Isotopic investigations of speleothem CR1 from Cristal Cave in southeastern Brazil have established a high-resolution record of climate change extending 4,100 years prior to sample collection in 2007....
Oceans may be acidifying faster today than in the past 300 million years
Oceans 300 million years
2014/9/12
With increasing levels of carbon dioxide accumulating in the atmosphere and moving into marine ecosystems, the world's oceans are becoming more acidic.
华南理工大学流体力学与传热课件CHAPTER 7 Flow past immersed bodies
华南理工大学 流体力学与传热 课件 CHAPTER 7 Flow past immersed bodies
2014/7/25
华南理工大学流体力学与传热课件CHAPTER 7 Flow past immersed bodies。