pyrolysis of low density polyethylene (ldpe) by equilibrium fluid catalytic cracking (fcc) was studied in a stirred reactor under different process parameters. in this work, the effect of process parameters such as degradation temperature (420-510°c), catalyst/polymer ratio (0-60%), carrier gas type (h2, n2, ethylene, propylene, ar and he), residence time and agitator speed (0-300 rpm) on the c...

In this paper, a novel approach to modelling education and human capital formation in computable general equilibrium model is proposed. Rather than adopting microeconomic-based assumptions of formation, the method based on an empirical relationship between labor force composition expenditure services. It found some robust correlation workers’ shares educational expenditure, real terms per capit...

Three different forms of aminotripeptidase have been obtained from swine kidney. As studied in the ultracentrifuge by sedimentation-equilibrium, these forms are: 1. a stable monomer of 71,100 molecular weight that consists of a single polypeptide chain lacking disulfide bridges; 2. a stable dimer that contains two apparently identical subunits of the same size as the monomer; and 2’. an unstabl...

These investigations were undertaken to test the hypothesis, of the authors, that there is a relationship between the inorganic composition of teeth and the fluid from which the tooth salts precipitate and that the composition of this jluid in turn is related to the blood serum. If this hypothesis is valid, it should be possible to vary the composition of teeth (during the period of active lime...

Applications of speleothem calcite geochemistry in climate change studies require the evaluation of the accuracy and sensitivity of speleothem proxies to correctly infer paleoclimatic information. The present study of Harrison’s Cave, Barbados, uses the analysis of the modern climatology and groundwater system to evaluate controls on the C and O isotopic composition of modern speleothems. This ...

The bodies of the Solar System exist in a variety of irregular shapes. Studies of those shapes are conducted to infer information about the internal composition, structure, and history of those bodies. However, such inferences require knowing how the composition and structure or history relates to the shape and internal forces. That connection is known only for fluid bodies, where the permissib...

By means of simulations I investigate a two-speed dynamic on strategies and preferences in the prisoners’ dilemma and in the chicken game. Players learn strategies according to their preferences while evolution leads to a change in preference composition. With complete information cooperation in the prisoners’ dilemma is often achieved, with ”recirpocal” preferences. In the chicken game a symme...

We build a continous-time general equilibrium model of a two-country, pure-exchange economy featuring taxes on the repatriation of dividends. We find approximate closed-form expressions for asset prices, returns joint dynamics and equity portfolios, thus giving a full description of equilibrium in-between the polar cases of perfect integration and full segmentation. We show that large home bias...