搜索结果: 241-255 共查到“理学 carbon”相关记录835条 . 查询时间(0.062 秒)
Assessment of fossil fuel carbon dioxide and other anthropogenic trace gas emissions from airborne measurements over Sacramento, California in spring 2009
fossil fuel carbon dioxide anthropogenic trace gas airborne measurements Sacramento California
2011/2/24
Direct quantification of fossil fuel CO2 (CO2ff) in atmospheric samples can be used to examine several carbon cycle and air quality questions. We collected in situ CO2, CO, and CH4 measurements and fl...
Using measurements for evaluation of black carbon modeling
measurements black carbon modeling
2011/1/20
The ever increasing use of air quality and climate model assessments to underpin economic, public health, and environmental policy decisions makes effective model evaluation critical. This paper discu...
Inferring absorbing organic carbon content from AERONET data
organic carbon content AERONET data
2011/1/19
Black carbon, light-absorbing organic carbon (often called "brown carbon") and mineral dust are the major light-absorbing aerosols. Currently the sources and formation of brown carbon aerosol in parti...
Nile Blue-hexacyanoferrate carbon paste modified electrode as an amperometric sensor for determination of hydrazine
Modified electrode carbon paste electrode hexacyanoferrate
2010/12/29
The main problem associated with metal hexacyanoferrates (MHCFs) is their instability at high pH values. We synthesized a new Prussian Blue analogue, Nile-Blue hexacyanoferrate (NBHCF), that remains s...
Ozone, carbon monoxide and nitrogen oxides time series at four alpine GAW mountain stations in central Europe
Ozone carbon monoxide nitrogen oxides four alpine GAW mountain stations central Europe
2010/12/28
Long-term, ground based in-situ observations of ozone (O3) and its precursor gases nitrogen dioxide (NO2) and carbon monoxide (CO) from the four sites Hohenpeissenberg and Zugspitze (D), Sonnblick (A)...
Nile Blue-hexacyanoferrate carbon paste modified electrode as an amperometric sensor for determination of hydrazine
Modified electrode carbon paste electrode hexacyanoferrate amperometric determination of hydrazine Nile-Blue hexacyanoferrate
2010/12/20
The main problem associated with metal hexacyanoferrates (MHCFs) is their instability at high pH values. We synthesized a new Prussian Blue analogue, Nile-Blue hexacyanoferrate (NBHCF), that remains s...
The effect of metal salts on quantification of elemental and organic carbon in diesel exhaust particles using thermal-optical evolved gas analysis
metal salts elemental and organic carbon diesel exhaust particles thermal-optical evolved gas analysis
2010/12/20
Thermal-optical evolved gas analysis (TOEGA) is a conventional method for classifying carbonaceous aerosols as organic carbon (OC) and elemental carbon (EC). Its main source of uncertainty arises from...
Effect of Attapulgite and Carbon Black on the Properties of Natural Rubber
Attapulgite Carbon Black (CB) Co-Coagulating Rubber Latex Modified Attapulgite Natural Rubber (NR) Properties
2011/11/15
The modified attapulgite / natural rubber composites (MANRC), attapulgite / natural rubber composites (ANRC) and carbon black N330 / natural rubber composites (CBNRC) were prepared by co-coagulating r...
HE 1015-2050: Discovery of a Hydrogen-deficient carbon star at high galactic latitude
HE 1015-2050 Hydrogen-deficient carbon star
2011/1/10
Medium resolution spectral analysis of candidate Faint High Latitude Carbon (FHLC) stars from Hamburg/ESO survey has given us the potential to discover objects of rare types. Two primary spectral char...
Nanofluids are suspensions of nanoparticles and fibers which have recently attracted much attention due to their superior thermal properties. Here, nanofluids are studied in the sense of nanofins tran...
Spin-dependent electronic hybridization in a rope of carbon nanotubes
Spin-dependent electronic hybridization carbon nanotubes
2010/11/24
We demonstrate single electron addition to different strands of a carbon nanotube rope. Anticrossings of anomalous conductance peaks occur in quantum transport measurements through the parallel quantu...
Helical modes in carbon nanotubes generated by strong electric fields
Helical modes carbon nanotubes generated
2010/11/23
Helical modes, conducting opposite spins in opposite directions, are shown to exist in metallic
armchair nanotubes in an all-electric setup. This is a consequence of the interplay between spinorbit i...
Direct observation of band-gap closure for a semiconducting carbon nanotube in a large parallel magnetic field
Direct observation of band-gap closure semiconducting carbon nanotube large parallel magnetic field
2010/11/23
We have investigated the magnetoconductance of semiconducting carbon nanotubes (CNTs) in
pulsed, parallel magnetic elds up to 60 T, and report the direct observation of the predicted band-gap closur...
IASI carbon monoxide validation over the Arctic during POLARCAT spring and summer campaigns
IASI carbon monoxide the Arctic POLARCAT spring summer campaigns
2010/11/30
In this paper, we provide a detailed comparison between carbon monoxide (CO) data measured by the Infrared Atmospheric Sounding Interferometer (IASI)/MetOp and aircraft observations over the Arctic. T...
Atmospheric three-dimensional inverse modeling of regional industrial emissions and global oceanic uptake of carbon tetrachloride
regional industrial emissions global oceanic carbon tetrachloride
2010/11/29
Carbon tetrachloride (CCl4) has substantial stratospheric ozone depletion potential and its consumption is controlled under the Montreal Protocol and its amendments. We implement a Kalman filter using...