Ozone decomposition
Transition metals-incorporated zeolites as environmental catalysts for indoor air ozone decomposition
... On the other hand, the transition metals and their oxides have been found to be the most active sub- stances for ozone decomposition [ 2 ]. Zeolite is character- ized by its ability to participate in ...
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Transition metals-incorporated zeolites as environmental catalysts for indoor air ozone decomposition
... with ozone faster than Cu, leading to ozone ...the decomposition of ozone was in the order Cu < Ag < Ni < Fe < Au < ...3 decomposition was Fe = Ni ...
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Ozone decomposition kinetics on alumina: effects of ozone partial pressure, relative humidity and state of film oxidation
... Lastly, we note that we did some experiments where benzene was added in place of ozone, to test for the rapidity by which expansion from the teflon line into the evacuated 10 absorption cell occurs. Benzene was ...
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Gaseous ozone decomposition over high silica zeolitic frameworks
... The variation of zeolite bed mass as a function of ozonation time is shown in Figure 4. Two phases can also be observed for all zeolite samples. The first phase, from 0 to 220 min for H- MOR, and from 0 to 170 min for ...
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Ozone decomposition on Saharan dust: an experimental investigation
... 15 also be operating in the atmosphere, and may well be more e fficient than in the dry, chemically clean Knudsen reactor environment. Note that deposition velocity measure- ments have shown, e.g. that exposure to SO 2 ...
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Ozone decomposition kinetics on alumina: effects of ozone partial pressure, relative humidity and repeated oxidation cycles
... and ozone in a glass bulb before addition to the reaction ...of ozone on an unsaturated fatty acid, ...that ozone must find a site on the surface for it to react and it is known that water adsorbs to ...
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Surface graphitization of ozone-treated detonation nanodiamonds
... Note that the sample with larger sp 2 reconstructed surface area again contains more abundant oxygen at the surface, as follows from TDMS investigations (Fig. 2). One could suggest therefore that oxygen groups are also ...
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Aerosol-ozone correlations during dust transport episodes
... European ozone source and production rates ob- tained by Wotawa et ...of ozone across the Mediterranean region, as reported by Balkanski et ...high ozone concentrations are very similar to those ...
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A pro-active stratospheric ozone protection scenario
... stratospheric ozone, an average delay of ten years has oc- ...the ozone destruction cycle in 1998 was mostly determined by CFCs emitted before the end of the 1980s — that is before regulations were ...
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Ozone measurements monitoring using data-based approach
... tropospheric ozone pollution the Air Normand association consists of seven stations placed in industrial, peri-urban and urban sites, across the ...region. Ozone concentrations have been measured every 15 ...
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Clique-decomposition revisited
... ˜ O(n 2.3729 )-time complexity. Note that it is less than O(n 2.69 ), that has been the best-known complexity for computing the clique-decomposition of a graph — until this note. Furthermore, new ...
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Generalized Filtering Decomposition
... In this talk we discuss a new preconditioning method for solving a large sparse linear systems of equations arising from the discretization of a partial differential equation (PDE) by a finite difference or finite volume ...
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Symmetric tensor decomposition
... the decomposition of all the types of ternary cubics. The decomposition allows us to classify, up to projective transformations of the variables, homogeneous polynomials of degree three in three variables, ...
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Update on Global ozone: past, present, and Future
... column ozone is re- duced by about 1% at low latitudes and about 5% at VSLSs when best estimates for the present-day strato- spheric loading of brominated and chlorinated VSLSs are used (Figure 3-25; Hossaini et ...
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The total ozone field separated into meteorological regimes. Part II: Northern Hemisphere mid-latitude total ozone trends
... A new method was developed in order to allow the boundaries to take into account 15 any latitude dependence. The daily boundary values from Hudson et al. (2003) were used as a first guess to separate the total ...
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Ozone Quantification by Selected Ion Flow Tube Mass Spectrometry: Influence of Humidity and Manufacturing Gas of Ozone Generator
... for each of the four negative precursor ions reactive to ozone 11 are represented in Figure 2 . They were obtained during full scan (FS) mode and individually for each precursor ion. In FS mode, the second ...
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Uniformity and games decomposition
... direct-sum decomposition of an arbitrary game into three components, which we refer to as the uniform with zero-constant, the constant and the non-interactive total-sum zero ...
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Detectability of the Impacts of Ozone Depleting Substances andGreenhouse Gases upon Stratospheric Ozone Accounting forNonlinearities in Historical Forcings
... mean ozone changes Figure 1a and b show, separately for the upper and lower stratosphere, the time series of globally averaged annual- mean ozone anomalies for the SWOOSH observations and the five WACCM ...
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Decomposition of s ― Concentration Curves
... The decomposition technique exhibits different concentration amounts prevailing in a given population. These are related to the number of indi- viduals within each group. Then, one obtains contribution indices, ...
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Local proper generalized decomposition
... Consider, to begin with, an equation depending solely on space and time, without any parametric dependence. The most naive approach to the problem is to work by partitioning the time dom[r] ...
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