Particle size composites

In the application of XAS to the study of fuel cell catalysts, the limitations of the technique must also be acknowledged the greatest of which is that XAS provides a bulk average characterization of the sample, on a per-atom basis, and catalyst materials used in low temperature fuel cells are intrinsically nonuniform in nature, characterized by a distribution of particle sizes, compositions, and morphologies. In addition, the electrochemical reactions of interest in fuel cells take place at the surface of catalyst par-... 

Dams not only reduce particle flux, they also shift it seasonally and fractionate the particle size composition, as only the fine fraction (< several pm, depending on... 

Nemesure, S., R. Wagener, and S. E. Schwartz, Direct Shortwave Forcing of Climate by the Anthropogenic Sulfate Aerosol Sensitivity to Particle Size, Composition, and Relative Humidity, J. Geophys. Res., 100, 26105-26116 (1995). 

The process of selecting n objects for a lot of size N is called sampling. The n objects are the sample and the total lot size N is the population from which the sample is taken. This lot may be in one mass or distributed among M separate containers. Randomness is critical to sampling because a random sample has minimum errors ideally all the error should be due to the intrinsic variability of the material and the variability due to sampling should be minimized. An attribute is the property of interest that is going to be measured, be it particle size, composition, etc. 

Nemesure S., Wagener R., and Schwartz S. E. (1995) Direct shortwave forcing of climate by anthropogenic sulfate aerosol sensitivity to particle size, composition, and relative humidity. J. Geophys. Res. 100, 26105—26116. 

In this case, the mechanism of the porous structure formation can be subdivided into several stages that differ from one another by the gel particle size, composition of gel, and particle arrangement. Undoubtedly, these parameters will change with composition of the solution. In particular, at a high concentration of the first component (with a lower pH of precipitation) and insignificant content of the second, completely adsorbed on gel particles, precipitated by the first component, the structure of the adsorbent obtained will be represented by gel partially encapsulated by the other component. As the concentration of the second component increases, the number of encapsulated particles will... 

Soil moisture, particle size, composition Local slope, aspect Forage, cover, habitat connectivity Prey... 

Entin, Z.B. Nekhoroshev, A.V. and Sorochkin, M.A., "Interrelation Between the Hydraulic Activity of Cement Clinker and Its Particle-Size Composition," Tsement, No. 10,1980, pp. 6-7. 

Thanks to the advanced characterization techniques such as aberration-corrected electTOTi microscopy and spectroscopy, more complex core-shell fine structures of the dealloyed nanoparticles can be studied at atomic scale [53, 73], enabling a comprehensive understanding on the structure-activity-stability relationship. To achieve both high activity and stability, future works will concentrate on understanding and optimizing the core-shell fine structures of dealloyed nanoparticles through the COTitrol of particle size, composition and shape, the dealloying conditions, etc. 

S. M. Chitale and R. W. Vest, Critical Relationships Between Particle Size, Composition, and Microstructure in Thick Film Resistors, IEEE Trans. CHMT, vol. 11, no. 4, pp. 604-609, 1988. 

Granulation properties. The granulating quality directly affects the permeability of sinter bed. So it affects the sinter production and quality index. The main evaluation indexes include the particle size composition of iron ores, permeability, granulation index and... 

---