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  • Articles  (8)
  • AERODYNAMICS
  • Animals
  • Immunocytochemistry
  • Saccharomyces cerevisiae
  • growth
  • Springer  (8)
  • Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics  (8)
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  • Articles  (8)
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Keywords
Publisher
  • Springer  (8)
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Topic
  • 1
    Electronic Resource
    Electronic Resource
    A model for ultrafine powder production in a plasma reactor (1991)
    Springer
    Plasma chemistry and plasma processing 11 (1991), S. 371-386 
    Details
    ISSN: 1572-8986
    Keywords: Plasmas ; aerosol ; modelling ; growth ; reactor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Technology
    Notes: Abstract A model is proposed for the analysis of the production of ultrafine particles in thermal plasma reactors. The model initially solves the fluid flow, temperature, and concentration fields using a classical control volume approach. The nucleation and growth of ultra fine particles are then solved along each streamline. The evolution of the particle distribution is described by a statistical approach, using the first moments of the distribution as the dependent variables. Brownian coalescence is considered in the free molecular regime. In the discussion, the model is used to demonstrate the effects of some important parameters, such as the initial concentration of metal vapor, its radial distribution, and the radial injection of a cooling gas, on the particle size distribution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01458917
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  • 2
    Electronic Resource
    Electronic Resource
    A growing 2D spherulite and calculus of variations Part II: A 2D spherulite of polypropylene in a linear temperature field (1991)
    Springer
    Colloid & polymer science 269 (1991), S. 695-703 
    Details
    ISSN: 1435-1536
    Keywords: 2D spherulire ; growth ; linear temperature field ; calculus of variations ; theory and experiments
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A 2D spherulite grows in a linear-temperature field from a nucleus of polypropylene at (0,0). The growth lines and the growth fronts are computed by the calculus of variations. The agreement between theory and experiment is satisfactory
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00657407
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  • 3
    Electronic Resource
    Electronic Resource
    Crystallization of polymers in variable external conditions (1996)
    Springer
    Colloid & polymer science 274 (1996), S. 209-217 
    Details
    ISSN: 1435-1536
    Keywords: Crystallization ; nucleation ; growth ; non-isothermal crystallization ; thermal nucleation ; athermal nucleation ; transient effects ; relaxation times
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A new model of crystallization kinetics in variable external conditions has been developed. The model concerns situations when temperature, pressure, stress, change in time. Compared to earlier models, the present treatment includes transient and athermal effects, proportional to the rate of change of the external conditions. The model can be used for simulation of crystallization in industrial processes (injection molding, fiber spinning, film blowing). The present paper offers general theoretical fundamentals of the model. Applications concerning more specific cases will be published separately.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00665637
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  • 4
    Electronic Resource
    Electronic Resource
    A growing 2D spherulite and calculus of variations Part I: A 2D spherulite in a linear field of growth rate (1991)
    Springer
    Colloid & polymer science 269 (1991), S. 689-694 
    Details
    ISSN: 1435-1536
    Keywords: 2D spherulite ; growth ; field of growth rate ; calculus of variations ; linear growth rate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract We propose to take the calculus of variations in order to compute the shape of a growing 2D spherulite in an uniaxial field of growth rate. We are concerned with the growth line (a path that is traveled in the shortest possible time from nucleus to a point (x1, y1), where a molecule just crystallizes) and the growth front (the times between spherulite and supercooled material). The Euler differential equation—a result of the calculus of variations—is derived for all uniaxial growth ratesv (x). Here we especially investigatev(x)=px+q.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00657406
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  • 5
    Electronic Resource
    Electronic Resource
    Experimental study of shear-induced crystallization of an impact polypropylene copolymer (1996)
    Springer
    Colloid & polymer science 274 (1996), S. 197-208 
    Details
    ISSN: 1435-1536
    Keywords: Shear-induced crystallization ; nucleation ; growth ; overall kinetics ; polymer ; polypropylene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The crystallization kinetics of polypropylene was observed during shear and after shear experiments under isothermal condition. The crystallizations were performed in a plate-plate and a fiber pull-out device. The nucleation density, the crystalline growth and the overall kinetics were measured and compared with data obtained in a similar way but during static experiments. The morphologies are spherulitic and formed from nuclei which seem to be randomly distributed. α-phase spherulites are always observed but with a nucleation density and a growth rate which depend on shearrate. The nucleation density is strongly enhanced by shear and acts as the main factor on the overall kinetics. The overall kinetics can be analyzed with a two-step Avrami model, where an Avrami exponentn 1 with a very high value is always observed first after shear and a more usual parametern 2 for the subsequent crystallization period. This high value ofn 1 seems to be related to the strong enhancement of nucleation density. The growth rate increases with the shear-rate, but the basic growth mechanisms do not seem to be modified. For crystallizations after shear the growth rate decreases with a long-time delay after shear but not down to the static value. The effect is characteristic of a partial relaxation of chain orientation after shear but with a very unusual time constant.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00665636
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  • 6
    Electronic Resource
    Electronic Resource
    Constitutive Functions of Elastic Materials in Finite Growth and Deformation (2000)
    Springer
    Journal of elasticity 59 (2000), S. 175-193 
    Details
    ISSN: 1573-2681
    Keywords: biomechanics ; growth ; residual stresses
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The constitutive functions of soft biological tissues during growth are studied. A growth, treated as addition (often non-uniform) of material points, results in deformation, residual stresses, and evolution of the constitutive functions. A theory based on the concept of equivalent material points is developed with the current configuration taken as the reference. The residual stresses developed in a spherical shell undergoing spherical growths are studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1011061400438
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  • 7
    Electronic Resource
    Electronic Resource
    Reduced Mobility of Triple Nodes and Lines on Grain Growth in Two and Three Dimensions (1999)
    Springer
    Interface science 7 (1999), S. 285-295 
    Details
    ISSN: 1573-2746
    Keywords: computer simulation ; growth ; energy dissipation ; grain boundaries ; triple nodes (Interfaces) ; triple line (Interfaces)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Vertex dynamics models in two and three dimensions are applied to study grain growth including a limited mobility of triple points (two dimensions) and triple lines (three dimensions). A recent experiment on a triple node is used to validate the proposed model. The reduced triple node/line mobility in the case of a polycrystalline sample is shown to influence both, the grain growth kinetics and the grain size distribution function.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008773411083
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  • 8
    Electronic Resource
    Electronic Resource
    Synthesis and Characterization of a Polycrystalline Ionic Thin Film by Large-Scale Molecular-Dynamics Simulation (1999)
    Springer
    Interface science 7 (1999), S. 15-31 
    Details
    ISSN: 1573-2746
    Keywords: polycrystal ; ionic ; oxide ; molecular-dynamics ; simulation ; growth ; thin film ; structure ; characterization ; grain boundary
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A simulation methodology for the synthesis of polycrystalline, ionic thin films is developed. The method involves the preparation of a polycrystalline substrate onto which a thin film is subsequently grown by crystallization from the melt. A detailed structural analysis of a textured sixteen-grain FeO film, with a grain size of approximately 4.7 nm, shows that the interiors of the grains are almost perfect single crystals with only a very few vacancies and no interstitials. The grains are delineated by 〈001〉 tilt grain boundaries; as expected, the low-angle grain boundaries in the film consist of arrays of dislocations, while the high-angle grain boundaries are relatively narrow and well ordered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008782230777
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