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Chemical Evolution Model and Results

A Chemical Evolution Model for the Fornax Dwarf Spheroidal Galaxy

A Chemical Evolution Model for the Fornax Dwarf Spheroidal Galaxy

... a chemical evolution model on a 2D mass grid with supernovae (SNe) as sources of metal enrich- ...the evolution of SN remnants and on the global gas ...Our results indicate that due to ...

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Galaxy Formation and Chemical Evolution

Galaxy Formation and Chemical Evolution

... early evolution of the galaxy result in an earlier enrichment of heavier elements due to the stellar nucleosynthetic yields of massive ...galaxy results in earlier high elemental yields compared to the ...

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Analysis of a Chemical Model System Leading to Chiral Symmetry Breaking: Implications for the Evolution of Homochirality

Analysis of a Chemical Model System Leading to Chiral Symmetry Breaking: Implications for the Evolution of Homochirality

... the results from CKS and Kintecus were attributed to different methods of numerical analysis but, in both cases, a very small perturbation in the concentration of R or S in the quasi-equilibrium state led to ...

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Chemical evolution of the Magellanic Clouds: analytical models

Chemical evolution of the Magellanic Clouds: analytical models

... h ¹ u e hu ¹ 1 : ð11Þ Results of equations (1) to (11) for our assumed model para- meters are given in the first seven columns of Tables 1 and 2. Figs 1 and 2 show the resulting SFR histories for both ...

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The physical and chemical evolution of star forming regions

The physical and chemical evolution of star forming regions

... the results of gas phase equilibrium model calculations for a num ber of different sets of selective depletions of carbon, nitrogen, oxygen, sulphur and ...the results and of an approach th a t could ...

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Chemical evolution of star-forming galaxies in the overdense environment

Chemical evolution of star-forming galaxies in the overdense environment

... In this paper, we focus on the effect of disk truncation on the integrated metallicity of cluster members. We simulate RPS in a galaxy cluster using the semi-analytic prescription by Luo et al. (2016) and Tecce et al. ...

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Neutron Capture Nucleosynthesis and the Chemical Evolution of Globular Clusters

Neutron Capture Nucleosynthesis and the Chemical Evolution of Globular Clusters

... Buell 2013), an improvement in accuracy would be achieved if the He abundance were incorporated as a third parameter and values were obtained from full stellar evolutionary models with the appropriate initial He ...

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Differential Evolution in Chemical Engineering, Developments and Applications (2017)

Differential Evolution in Chemical Engineering, Developments and Applications (2017)

... kinetic model for continuous catalytic regeneration process of naphtha ...the model results and commercial data were considered as the objective function, and the reaction rate constants were ...

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Comet Halley - A carrier of interstellar dust chemical evolution

Comet Halley - A carrier of interstellar dust chemical evolution

... DUST MODEL WITH COMET HALLEY RESULTS a) Albedo and surface properties Both Vega and Giotto measures of the brightness of the surface of comet Halley outside the jets indicated very low ...

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Physical and chemical aspects of late stages of stellar evolution

Physical and chemical aspects of late stages of stellar evolution

... We present preliminary results from the first application of the GRAMS model grid to the AGB population of the LMC. GRAMS is a pre-computed grid of radiative transfer models of AGB stars and surrounding ...

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Investigating chemical and microstructural evolution at dissimilar metal welds

Investigating chemical and microstructural evolution at dissimilar metal welds

... cell model for the ferrite-austenite case (the cell model consisting of two conjoined ...The results were reasonable in both cases, with the models predicting the correct diffusion distances and ...

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The Chemical Evolution of the Ursa Minor Dwarf Spheroidal Galaxy

The Chemical Evolution of the Ursa Minor Dwarf Spheroidal Galaxy

... the chemical evolution of UMi, and how this and other dSph galaxies may be related to the population of Galactic halo field stars and to Galactic globular ...our results to those for Galactic halo ...

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Simulating emission and chemical evolution of coarse sea-salt particles in the Community Multiscale Air Quality (CMAQ) model

Simulating emission and chemical evolution of coarse sea-salt particles in the Community Multiscale Air Quality (CMAQ) model

... To account for enhanced sea-salt emission from the surf zone, Nolte et al. (2008) used the flux parameterization of de Leeuw et al. (2000). That treatment yielded rela- tively unbiased model results for ...

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A conceptual model for physical and chemical soil profile evolution

A conceptual model for physical and chemical soil profile evolution

... This is a repository copy of A conceptual model for physical and chemical soil profile evolution.. White Rose Research Online URL for this paper: http://eprints.whiterose.ac.uk/141574/[r] ...

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From local chemical evolution to cosmic chemical evolution

From local chemical evolution to cosmic chemical evolution

... - Adequation between the observation of elements and cosmic chemical evolution in a model of hierarchical formation of structures. - Role of stellar rotation on the mass of BH at any Z[r] ...

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A coupled soilscape–landform evolution model: model formulation and initial results

A coupled soilscape–landform evolution model: model formulation and initial results

... landform evolution modelling community. Most landform evolution models which do not explicitly model soil profile evolution or weathering consider a single unchanging soil layer on top of the ...

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Chemical evolution in hierarchical scenarios

Chemical evolution in hierarchical scenarios

... 3. CHEMICAL ABUNDANCES AND STAR FORMATION HISTORIES We estimated the star formation history of each stellar component of our eight haloes and the corresponding [Fe/H] and [O/Fe] ...global chemical trends ...

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Model evolution and system evolution

Model evolution and system evolution

... during evolution of the ...Object Model has ...a model, then the system changes its behavior, allowing a company to evolve the way it does its ...

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Cometary compositions compared with protoplanetary disk midplane chemical evolution: An emerging chemical evolution taxonomy for come

Cometary compositions compared with protoplanetary disk midplane chemical evolution: An emerging chemical evolution taxonomy for come

... modelled chemical abundances in comets and comet-forming regions could be a powerful tool for constraining cometary formation ...this chemical constraint may be proposed as an alternative taxonomy for ...

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Cometary compositions compared with protoplanetary disk midplane chemical evolution. An emerging chemical evolution taxonomy for comets

Cometary compositions compared with protoplanetary disk midplane chemical evolution. An emerging chemical evolution taxonomy for comets

... impede chemical processing of the ices inside the comet, such that the composition inside the comet would remain unaltered, representing the composition of the icy material at the specific time and radius at which ...

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