In this research, we investigate and discuss the characteristics of HoFeO3 nanoparticles synthesized by co-precipitation method at low temperature (t° ? 4 °C). The single-phase samples with orthorhombic structure formed after annealing precipitates different temperatures up to 950 °C. annealed have an average crystal size 10–20 nm (SEM, TEM). UV-Vis spectrum sample 750 °C showed strong UV Vis a...

Contents 1. Introduction 2. History of the problem 3. Physical basis for artificial modification of clouds and precipitation 4. The enhancement and redistribution of precipitation 5. Hail suppression 6. Fog dispersal 7. Dispersal of super cooled low-level clouds and precipitation 8. Other weather modification experiments 9. Conclusions Glossary Bibliography Biographical Sketches

BACKGROUND Increasing livestock density and animal manure spreading, along with climate factors such as heavy rainfall, may increase the risk of acute gastrointestinal illness (AGI). In this study we evaluated the association between farming activities, precipitation and AGI. METHODS A cross-sectional telephone survey of randomly selected residents (n = 7006) of 54 rural municipalities in Que...

A simple method is described for precipitation of low density lipoproteins. The results correlate well with those from ultracentrifugation in combination with polyanion precipitation (135 +/- 35 vs 136 +/- 35, r = 0.984, n = 13) or quantitative lipoprotein electrophoresis (r = 0.9287, n = 6394). In addition to lipoprotein analysis, this method may be used for the extracorporeal elimination of ...

Quantitative Precipitation Nowcasting (QPN) is one of the main applications of radar observations. On one hand, one of the most used nowcasting algorithms is Lagrangian extrapolation. It shows skill in specifying the timing and location of precipitation over short time periods, but shows low skill when using past precipitation trends to predict changes in precipitation intensity. On the other h...

The objective of this study is to cross-validate 34 Coupled Model Intercomparison Project Phase 5 (CMIP5) historical simulations of precipitation against the Global Precipitation Climatology Project (GPCP) data, quantifying model pattern discrepancies, and biases for both entire distributions and their upper tails. The results of the volumetric hit index (VHI) analysis of the total monthly prec...

We have studied the effect of thermal history on iron precipitation behavior in intentionally contaminated Czochralski silicon wafers that contain well-defined precipitation sites for iron, oxide precipitates. Iron precipitation was studied at a temperature range between 600 C and 700 C for various times. The results indicate that iron precipitation is strongly affected by the thermal history o...

The WSR-57 radar a t Sacramento provides an opportunity to observe mountain effects on precipitation and on radar echo patterns. Radar patterns representing a wide range of weather situations are described and interpreted in light of concurrent gage precipitation measurements. The frequent underestimation by radar of rainfall on windward slopes is attributed to the small drop size and low forma...

Title of Document: VARIABILITY OF THE GREAT PLAINS LOW-LEVEL JET: LARGE SCALE CIRCULATION CONTEXT AND HYDROCLIMATE IMPACTS Scott J. Weaver, Doctor of Philosophy, 2007 Directed By: Professor Sumant Nigam, Department of Atmospheric and Oceanic Science Variability of the Great Plains Low-Level Jet (GPLLJ) is analyzed from the perspective of larger-scale, lower-frequency influences and regional hyd...