搜索结果: 31-45 共查到“理学 particles”相关记录475条 . 查询时间(0.07 秒)
Development of a new semi-empirical parameterization for below-cloud scavenging of size-resolved aerosol particles by both rain and snow
new semi-empirical parameterization rain
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2014/12/18
t. A parameter called the scavenging coefficient 3
is widely used in aerosol chemical transport models (CTMs)
to describe below-cloud scavenging of aerosol particles by
rain and snow. However...
Partial Derivative Fitted Taylor Expansion: an efficient method for calculating gas/liquid equilibria in atmospheric aerosol particles – Part 2: Organic compounds
Partial Derivative Fitted Taylor Expansion calculating gas
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2014/12/11
A flexible mixing rule is presented which allows the calculation of activity coefficients of organic compounds in a multi-component aqueous solution.
Carbon soot particles, dust blamed for discoloring India’s Taj Mahal
Carbon soot particles dust blamed discoloring India Taj Mahal
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2014/12/30
Knowing the culprits in the discoloration is just the first step in cleaning up the Taj Mahal. Scientists now must determine where the particles are coming from to develop strategies for controlling t...
Meteorological and trace gas factors affecting the number concentration of atmospheric Aitken (Dp = 50 nm) particles in the continental boundary layer: parameterization using a multivariate mixed effects model
Meteorological number concentration atmospheric Aitken particles continental boundary layer multivariate mixed effects model
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2014/12/9
Measurements of aerosol size distribution and different gas and meteorological parameters, made in three polluted sites in Central and Southern Europe: Po Valley, Italy, Melpitz and Hohenpeissenberg i...
MADE-in: a new aerosol microphysics submodel for global simulation of insoluble particles and their mixing state
Black carbon Mineral dust Aerosol The atmosphere Dust particles Solidification grain Liquid coating
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2014/12/9
Black carbon (BC) and mineral dust are among the most abundant insoluble aerosol components in the atmosphere. When released, most BC and dust particles are externally mixed with other aerosol species...
Quantum Corrections to the Gravitational Interaction of Massless Particles
Collinear Divergence Effective Field Theory General Relativity Infrared Divergence Massless Quantum Gravity
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2014/11/20
Donoghue's effective field theory of quantum gravity is extended to include the interaction of massless particles. The collinear divergences which accompany massless particles are examined first in th...
Sorption of Bovine Serum Albumin on Nano and Bulk Oxide Particles
oxide nanoparticles toxicity protein bsa
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2014/11/17
Manufactured oxide nanoparticles (NPs) have large production and widespread applications, which will inevitably enter the environment. NPs can interact with proteins in living beings due to the fact t...
Orion rocks! Pebble-size particles may jump-start planet formation（图）
rock Pebble-size particles jump-start planet formation
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2014/9/1
Astronomers using the National Science Foundation’s (NSF) Green Bank Telescope (GBT) have discovered that filaments of star-forming gas near the Orion Nebula may be brimming with pebble-size particles...
Tiny particles could help verify goods
Tiny particles verify goods
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2014/4/16
Some 2 to 5 percent of all international trade involves counterfeit goods, according to a 2013 United Nations report. These illicit products — which include electronics, automotive and aircraft parts,...
Trace metal cycling in the deep water of the South China Sea: The composition, sources, and fluxes of sinking particles
Trace metal cycling in the deep water the South China Sea composition sources fluxes of sinking particles
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2014/4/8
Moored sediment traps were deployed for 1 yr at depths of 120, 600, and 3500 m in the water column to investigate the trace metal (M) (Al, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, and Zn) composition, sources, ...
Aggregation as a function of PCO2 and mineral particles
PCO2 mineral particles
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2014/4/2
A laboratory experiment was designed to investigate the effects of ocean acidification (three levels) in the
presence or absence of the clay mineral illite (five concentrations) on the coagulation of...
Weighing particles at the attogram scale（图）
Weighing particles nanoparticles
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2014/3/17
MIT engineers have devised a way to measure the mass of particles with a resolution better than an attogram — one millionth of a trillionth of a gram. Weighing these tiny particles, including both syn...
Rare earth element geochemistry of waters and suspended particles in alkaline lakes using extraction and sequential chemical methods
rare earth elements alkaline lake dissolved suspended particles sequential chemical extractions
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2017/4/11
The concentrations of rare earth elements in the waters and suspended particles from two alkaline lakes in a carbonate
drainage basin of the South China Karst region were determined via ICP-MS. Seque...
Rare earth element geochemistry of waters and suspended particles in alkaline lakes using extraction and sequential chemical methods
rare earth elements alkaline lake dissolved suspended particles sequential chemical extract
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2017/4/11
The concentrations of rare earth elements in the waters and suspended particles from two alkaline lakes in a carbonate
drainage basin of the South China Karst region were determined via ICP-MS. Seque...
Accumulation of Gel Particles in the Sea-Surface Microlayer during an Experimental Study with the Diatom Thalassiosira weissflogii
Sea Surface Microlayer Extracellular Polymeric Substances
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2013/3/11
Since the early 80’s, the sea-surface microlayer (SML) has been hypothesized as being a gelatinous film. Recent studies have confirmed this characteristic, which confers properties that mediate mass a...