1,724,759 research outputs found
Characteristics of ACTG 5221 (A5221) Study Population.
Characteristics of ACTG 5221 (A5221) Study Population.</p
5221 Crabb Road, exterior views, 2019
Photographs of the exterior of 5221 Crabb Road, in Toledo, Ohio taken on September 17, 2019
Block Card 5221 Pawnee Road
This image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Ranch houses | 5221 Pawnee Road (Toledo, Ohio) | Dwelling | Fairgreen Addition (Toledo, Ohio) | Trilby Area (Toledo, Ohio)
Block Card 5221 Oldham Drive
This image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: dwelling | 5221 Oldham Drive (Toledo, Ohio) | Hipped roof | McLains Jackman Place Plat 1 | Greenwood Area (Toledo, Ohio) | West Toledo (Toledo, Ohio) | Washington Township | Ranch house
Block Card 5221 Banbury Drive
This image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: 5221 Banbury Drive (Toledo, Ohio) | Rancamp Place Addition (Toledo, Ohio) | South Toledo Area (Toledo, Ohio) | Garage
Do atmospheric aerosols form glasses?
Zobrist B, Marcolli C, Pedernera DA, Koop T. Do atmospheric aerosols form glasses? ATMOSPHERIC CHEMISTRY AND PHYSICS. 2008;8(17):5221-5244.A new process is presented by which water soluble organics might influence ice nucleation, ice growth, chemical reactions and water uptake of aerosols in the upper troposphere: the formation of glassy aerosol particles. Glasses are disordered amorphous (non-crystalline) solids that form when a liquid is cooled without crystallization until the viscosity increases exponentially and molecular diffusion practically ceases. The glass transition temperatures, Tg, homogeneous ice nucleation temperatures, Thom, and ice melting temperatures, Tm, of various aqueous inorganic, organic and multi-component solutions are investigated with a differential scanning calorimeter. The investigated solutes are: various polyols, glucose, raffinose, levoglucosan, an aromatic compound, sulfuric acid, ammonium bisulfate and mixtures of dicarboxylic acids (M5), of dicarboxylic acids and ammonium sulfate (M5AS), of two polyols, of glucose and ammonium nitrate, and of raffinose and M5AS. The results indicate that aqueous solutions of the investigated inorganic solutes show Tg values that are too low to be of atmospheric importance. In contrast, aqueous organic and multi-component solutions readily form glasses at low but atmospherically relevant temperatures (≤230 K). To apply the laboratory data to the atmospheric situation, the measured phase transition temperatures were transformed from a concentration to a water activity scale by extrapolating water activities determined between 252 K and 313 K to lower temperatures. The obtained state diagrams reveal that the higher the molar mass of the aqueous organic or multi-component solutes, the higher Tg of their respective solutions at a given water activity. To a lesser extent, Tg also depends on the hydrophilicity of the organic solutes. Therefore, aerosol particles containing larger (≳150 g mol−1) and more hydrophobic organic molecules are more likely to form glasses at intermediate to high relative humidities in the upper troposphere. Our results suggest that the water uptake of aerosols, heterogeneous chemical reactions in aerosol particles, as well as ice nucleation and ice crystal growth can be significantly impeded or even completely inhibited in organic-enriched aerosols at upper tropospheric temperatures with implications for cirrus cloud formation and upper tropospheric relative humidity
Het klimaat van het rechtswetenschappelijk onderzoek in Nederland
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5221.pdf (Publisher’s version ) (Open Access
Block Card 5221 W. Melvin Drive
This image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: 5221 West Melvin Drive (Toledo, Ohio) | Rancamp Place Addition (Toledo, Ohio) | South Toledo Area (Toledo, Ohio) | Ranch houses | Dwellin
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