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...

Monascus has been used for thousands of years. In China, Monascus has been widely used as a natural food-coloring agent for many kinds of foods. The metabolites of Monascus species, specifically, monacolin K, gamma-aminobutyric acid, and dimerumic acid, have been proven to have cholesterol-lowering, blood pressure-lowering, and antioxidant effects. Nowadays, the public has recognized the import...

The use of the biowaste chicken eggshell (ES) particles as an alternative filler for inorganic calcium carbonate (CC) in polymeric materials was investigated this study. ES and CC were chemically surface treated with stearic acid by dry wet methods. Composites filled high-density polyethylene (HDPE) prepared via melt mixing their thermal-mechanical- flow behavior characterized. FTIR results sho...

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...

This paper discusses how a qualitative understanding on the physics of failure can lead to a theoretical derivation of effective features that are useful for condition monitoring of wet friction clutches. The physical relationships between the features and the mean coefficient of friction (COF) which can be seen as the representation of the degradation level of a wet friction clutch are theoret...

In this paper, the wet modification method is compared with grafting to modify nano-barium sulfate. The effects of method, time, modifier dosage, temperature, and other factors on degree activation modified sulfate are investigated solve agglomeration problems make it a suitable process for industrial production. Thermogravimetric analysis, infrared spectroscopy, scanning electron microscopy us...

The degree of geographic concentration of individual manufacturing industries in the U.S. has declined only slightly in the last twenty years. At the same time, new plant births, plant expansions, contractions and closures have have shifted large quantities of employment across plants, firms, and locations. This paper uses data from the Census Bureau’s Longitudinal Research Database to examine ...