Results 341 to 350 of about 2,478,364 (380)

RNA Precipitation

2021
Precipitation is a critical step to recover RNA of high purity. This chapter describes the principles of alcoholic precipitation as well as a standard, basic protocol with key advices to observe, but numerous variations on the theme are discussed.
Valérie, Bourguignon-Igel, Yoann, Abel, Mathieu, Rederstorff   +2 more
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Co-precipitation of Cu and Zn in precipitation of struvite

Science of The Total Environment, 2021
Struvite recovered from wastewater can be used as a slow-release fertilizer. Nevertheless, hazardous metals easily precipitated with struvite would increase the ecological risk for its agricultural use. In this study, the influence of individual and coexistence of Cu and Zn on the precipitation of struvite was investigated.
Xingwen, Lu, Zebiao, Huang, Zhihong, Liang, Zhe, Li, Jiani, Yang, Yujie, Wang, Fei, Wang   +6 more
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Nitrophenols in precipitation

Chemosphere, 2001
From 1995 to 1998 the concentrations of 4-nitrophenol, 2-methyl-4-nitrophenol, 3-methyl-4-nitrophenol, dinitro-ortho-cresol (DNOC) and 2,4-di-nitrophenol were measured monthly by HPLC in precipitation at eight different locations in Bavaria (Germany).
W, Schüssler, L, Nitschke
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The Chemistry of Precipitation in Relation to Precipitation Type

Science of The Total Environment, 1982
Abstract Collections have been made of several types of wet deposition and of aerosols in various particle size ranges. The chemical composition of the precipitation changes significantly from one precipitation type to another. The forms of deposition, diffusionally-grown ice for example, compared with accretionally-grown ice, appear to be important ...
openaire   +1 more source

Precipitation and measurements of precipitation [PDF]

, 1977
In Western Europe, precipitation is normal phenomenon; it is of importance to all aspects of society, particularly to agriculture, in cattle breeding and, of course, it is a subject of hydrological research. Precipitation is an essential part in the hydrological cycle.
Schmidt, F.H., Bruin, H.A.R. de, Attmannspacher, W., Harrold, T.W., Kraijenhoff van de Leur, D.A.   +4 more
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Effect of precipitating environment on asphaltene precipitation: Precipitant, concentration, and temperature

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2016
Abstract The objective of this work was to investigate the effect of precipitating environment on asphaltene precipitation such as, precipitant (n-alkanes: C5, C7, C9, C12, C14), asphaltene concentration, and temperature. A combination of gravimetric and spectroscopic techniques was used for the detection and quantification of asphaltene ...
Zihao Yang, Shiyao Chen, Hao Peng, Mingyuan Li, Meiqin Lin, Zhaoxia Dong, Juan Zhang, Yuxi Ji   +7 more
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Precipitable water and precipitation in Athens

Archiv für Meteorologie, Geophysik und Bioklimatologie Serie B, 1977
Total precipitable water, its variation with height, and its climatological relationship with precipitation are examined for the Athens area (Hellinikon Airport, 37°54'N, 23°44'E, 15 m a.s.l.) and for the period 1968–1974.
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Precipitation Days and Precipitation Variability

1958
Contained within the 3rd Edition (1957) of the Atlas of Canada is a plate with three maps that show the mean annual number of days with measurable precipitation, the mean annual number of days with measurable snowfall, and the variability of annual precipitation.
openaire   +1 more source

Regions of Strong Coupling Between Soil Moisture and Precipitation

Science, 2004
Previous estimates of land-atmosphere interaction (the impact of soil moisture on precipitation) have been limited by a lack of observational data and by the model dependence of computational estimates.
R. Koster, P. Dirmeyer, Zhichang Guo, G. Bonan, Edmond Chan, P. Cox, C. T. Gordon, S. Kanae, E. Kowalczyk, D. Lawrence, Ping Liu, Cheng-Hsuan Lu, S. Malyshev, B. Mcavaney, K. Mitchell, D. Mocko, T. Oki, K. Oleson, A. Pitman, Y. Sud, C. Taylor, D. Verseghy, R. Vasic, Y. Xue, T. Yamada   +24 more
semanticscholar   +1 more source