Transport investments can induce positive productivity benefits via agglomeration economies by increasing the scale and efficiency of spatial economic interactions. In assessing the ‘agglomeration benefits’ of transport investments we need to understand the spatial scale over which these externalities are distributed. This report is concerned with the effect of urban agglomeration on productivi...

Many industries are geographically concentrated. Many mechanisms that could account for such agglomeration have been proposed. We note that these theories make different predictions about which pairs of industries should be coagglomerated. We discuss the measurement of coagglomeration and use data from the Census Bureau’s Longitudinal Research Database from 1972 to 1997 to compute pairwise coag...

The possibility of spherical agglomeration was investigated for two active pharmaceutical ingredients from different classes the Biopharmaceutics Classification System. effects batch crystallization solvent systems on granulometric properties and structures dronedarone hydrochloride ceritinib were investigated. Light stereomicroscopy used to determine size shape agglomerates, while X-ray powder...

When a granular material such as sand is mixed with a certain amount of liquid, the surface tension of the latter bestows considerable stiffness to the material, which enables, for example, sand castles to be sculpted. The geometry of the liquid interface within the granular pile is of extraordinary complexity and strongly varies with the liquid content. Surprisingly, the mechanical properties ...

The objective was to investigate the applicability and limitations of an approach for estimating particle size from powder dissolution measurement using as little as 50 microg of sample in 1 ml of buffer solutions. The powder dissolution profiles of five sparingly-soluble drugs (hydrochlorothiazide, phenazopyridine hydrochloride, 2-naphthoic acid, indomethacin, and dipyridamole) were evaluated ...

The main purpose of this work is the computational simulation of the sensitivity coefficients of the homogenized tensor for a polymer filled with rubber particles with respect to the material parameters of the constituents. The Representative Volume Element (RVE) of this composite contains a single spherical particle, and the composite components are treated as homogeneous isotropic media, resu...

We investigate the formation of GMCs in spiral galaxies through both agglomeration of clouds in the spiral arms, and self gravity. The simulations presented include twofluid models, which contain both cold and warm gas, although there is no heating or cooling between them. We find agglomeration is predominant when both the warm and cold components of the ISM are effectively stable to gravitatio...

Gold nanoparticles with a graft density of 0.09, 0.30 and 0.40chains/nm2 of poly(N-isopropylacrylamide) were reproducibly synthesized by varying the ratio of disulfide terminated poly(N-isopropylacrylamide) to gold nanoparticle. The polymer coated nanoparticles were stable at room temperature in 50mM NaCl, yet agglomerated at 37°C. Previous studies have observed conflicting results as to the re...