We describe the nal universe approach to the character-isation of semantic universes and illustrate it by giving char-acterisations of the universes of CCS and CSP processes.

We compute the sequence of colengths in the cocharacters of the ∗polynomial identities of the ∗-simple algebra M2(F )⊕M2(F ), char(F ) = 0.

Cement production is highly energy intensive and requires large quantities of fuels. For both economical and environmental reasons, there is an increasing tendency for utilization of alternative fuels in the cement industry, examples being tire derived fuels, waste wood, or different types of industrial waste. In this study, devolatilization and combustion of large particles of tire rubber and ...

The influences of temperature, heating rate, purge gas type, and flow rate on the yield of chars produced from pyrolyzing southern pine chips were investigated. Pyrolysis temperatures were between 450°C and 1,000°C, with heating rates of 0.5°C/min, 1.0°C/min, 10°C/min, 30°C/min, 50°C/min, and 100°C/min. Purge gases, nitrogen (N2), hydrogen (H2), and N2-H2 mixture (10% H2), were used at flow rat...

<p><em>Utilization of palm waste in the form charcoal briquettes makes fuel more efficient and a better form. Thus, briquette with sugar is solution or alternative to solving problem caused by trees. This research was conducted aim knowing effect pre-heating on pyrolysis process biomass gas fraction, bio-oil char. study used an experimental method Mechanical Engineering Education La...

Prescribed burning is a common management tool used in grassland restorations to improve conditions for plant growth. At a grassland restoration in Maryland, we studied the impacts of sequential prescribed burning on near-surface soil chemistry of a highly weathered soil. We hypothesized that soil pH and base cations in the surface soil would increase in the nutrient-poor soils after the burnin...

The Gaussian matrix model is known to deform the $q,t$-matrix model. We consider further deformation elliptic $q,t$ by properly deforming density as well Vandermonde factor. Properties of an associated basis symmetric functions that provide property $\sim {\rm char}$ in deformed case are discussed.

We analysed six loci among 257 Arctic char (Salvelinus alpinus) representing seven locations in Labrador and Newfoundland to provide a first assessment of microsatellites gene diversity in anadromous char and to determine the geographic scale of population structuring within the species. The number of alleles per locus varied between 9 and 48, and gene diversity ranged from 0.190 to 0.968. Sign...

Let $D$ be an integral domain and $\Gamma$ a torsion-free commutative cancellative (additive) semigroup with identity element quotient group $G$. In this paper, we show that if char$(D)=0$ (resp., char$(D)=p>0$), then $D[\Gamma]$ is weakly Krull only UMT-domain, UMT-monoid, $G$ of type $(0,0,0, \dots )$ except $p$). Moreover, give arithmetical applications result.

Reduction of N2O by chars from subbituminous Siersza, Piast and Janina coals have been studied in a pressurised reactor at 973 1173 K. It has been found that the reaction N2O + [C] N2 + [CO] is controlled both by the chemical kinetics and diffusion of N2O within char particle's pores. The rate constant of the above reaction has been found to be independent of pressure within the examined range ...