搜索结果: 1-15 共查到“理学 Oxides”相关记录88条 . 查询时间(0.055 秒)
Use of rare earth oxides as tracers to identify sediment source areas for agricultural hillslopes
rare earth oxides sediment source areas agricultural hillslopes
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2014/12/31
Understanding sediment sources is essential to enable more effective targeting of in-field mitigation approaches to reduce diffuse pollution from agricultural land. In this paper we report on the appl...
The Surface of the Sea is a Sink for Nitrogen Oxides at Night（图）
Nitrogen Oxides Sink Surface
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2014/3/20
The surface of the sea takes up nitrogen oxides that build up in polluted air at night, new measurements on the coast of southern California have shown. The ocean removes about 15 percent of these che...
Mesoporous CuO/CeO2 bimetal oxides: One-pot synthesis, characterization and their application in catalytic destruction of 1,2-dichlorobenzene
Mesoporous CuO/CeO2 One-pot synthesis Catalytic destruction 1,2-Dichlorobenzene
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2013/12/12
Mesoporous CuO/CeO2 bimetal oxides were synthesized by a one-pot method using a cationic surfactant CTAB as structure directing agent and Cu(NO3)23H2O, Ce(NO3)6H2O and NaOH as the inorganic precurso...
Nanoscale Plasmonic and Optical Modulators Based on Transparent Conducting Oxides
Nanoscale Plasmonic Optical Modulators Transparent Conducting Oxides Optics
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2012/5/17
Recent experiments showed that unity-order index change in a transparent conducting oxide (TCO) can be achieved in a metal-oxide-semiconductor (MOS) structure by accumulation charge. However, the ultr...
Impact of Nitrogen Oxides, Volatile Organic Compounds and Black Carbon on Atmospheric Ozone Levels at a Semi Arid Urban Site in Hyderabad
Trace gas Ozone Volatile organic compounds Black carbon Meteorology and oxides of nitrogen.
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2016/3/25
The surface level ozone (O3), nitrogen oxides (NOx = NO2 + NO), volatile organic compounds (VOCs), black carbon (BC)
and meteorological parameters were continuously monitored for the period of one ye...
Heterogeneous Uptake of Hydrogen Peroxide on Mineral Oxides
Kinetics Hydrogen peroxide Heterogeneous uptake Atmospheric lifetime
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2012/4/5
The interaction of mineral oxides (α-Al2O3, MgO, Fe2O3, and SiO2) with hydrogen peroxide was investigated using the Knudsen cell reactor. The initial reactive uptake coefficients for the commercially ...
Effects of pH, ionic strength, temperature, and humic acid on Eu(III) sorption onto iron oxides
Iron oxides Eu(III) Sorption HA Temperature
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2011/11/10
Effects of pH, Eu(III) concentration, ionic strength, temperature and humic acid (HA) on Eu(III) sorption to iron oxides were investigated in detail. The sorption of Eu(III) to iron oxides was signifi...
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
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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)...
Quantum fluctuations in the effective pseudospin-1/2 model for magnetic pyrochlore oxides
effective pseudospin-1/2 model magnetic pyrochlore oxides
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2010/11/25
The e ective quantum pseudospin-1=2 model for interacting rare-earth magnetic moments, which
are locally described with atomic doublets, is studied theoretically for magnetic pyrochlore oxides.It is ...
Heterogeneous reactions of carbonyl sulfide on mineral oxides: mechanism and kinetics study
carbonyl sulfide mineral oxides mechanism and kinetics study
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2010/11/29
The heterogeneous reactions of carbonyl sulfide (OCS) on the typical mineral oxides in the mineral dust particles were investigated using a Knudsen cell flow reactor and a diffuse reflectance UV-vis s...
Nonlinear Insulator in Complex Oxides
Nonlinear Insulator Complex Oxides
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2010/11/22
Here we report a new class of material which we have coined as “nonlinear insulators” that exhibit a reversible electric-field-induced metal-insulator transition. We demonstrate this behaviour for an ...
Nitrogen oxides and PAN in plumes from boreal fires during ARCTAS-B and their impact on ozone: an integrated analysis of aircraft and satellite observations
Nitrogen oxides and PAN boreal fires ARCTAS-B aircraft and satellite observations
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2010/10/21
We determine enhancement ratios for NOx, PAN, and other NOy species from boreal biomass burning using aircraft data obtained during the ARCTAS-B campaign and examine the impact of these emissions on t...
Nitrogen oxides in the boundary layer and free troposphere at the Mt. Bachelor Observatory
Nitrogen oxides the boundary layer free troposphere the Mt. Bachelor Observatory
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2010/8/16
Nitrogen oxide (NOx=NO+NO2) observations were made at the Mt. Bachelor Observatory in central Oregon, USA (MBO; 2.73 km above sea level) during one autumn and three springtime (15 April–20 May) period...
Nocturnal nitrogen oxides at a rural mountain-site in south-western Germany
Nocturnal nitrogen oxides a rural mountain-site south-western Germany
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2010/8/12
A new, two-channel instrument for simultaneous NO3 and N2O5 monitoring was used to make the first comprehensive set of nocturnal NOx measurements (NO, NO2, NO3 and N2O5) at the Taunus Observatory, a r...
Effect of Interfacial Oxides on the Electrochemical Activity of Lead Dioxide Film Electrodes on a Ti Substrate
Interfacial Oxides Electrochemical Activity Lead Dioxide
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2010/9/16
The electrochemical activities of PbO2 thin-film electrodes were systematically studied with an oxygen-transfer reaction, i.e., the oxidation of thiourea. Five different types of PbO2 film electrodes ...