Results 221 to 230 of about 96,295 (253)

Catalytic growth of carbon filaments

Carbon, 1989
Abstract This article is a review of the information obtained by the author and his many co-workers from studies devoted to the formation of a fascinating material, filamentous carbon. Using the controlled atmosphere electron microcopy technique it has been possible to directly observe the manner by which various metal and alloys particles catalyze ...
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Simulation of growth of a filamentous fungus in 3 dimensions

Biotechnology and Bioengineering, 1997
The tridimensional growth of a filamentous fungus was simulated, based on a model for the evolution of the microscopic morphology of Trichoderma reesei. When supplemented with a spatial representation of growth, the model correctly simulates the evolution from a single spore to a pellet. Diffusion of oxygen is included in the model.
Lejeune, Robert, Baron, Gino
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Filamentous Growth of Saccharomyces cerevisiae Is Regulated by Manganese

Fungal Genetics and Biology, 2000
The Candida albicans INT1 gene is a virulence factor that contributes to both adhesion and filamentous growth of the fungus. Expression of INT1 in the budding yeast Saccharomyces cerevisiae directs both adhesion and filamentous growth. Because Int1p contains two predicted divalent cation-binding motifs, we asked whether divalent cations are important ...
C M, Asleson, J C, Asleson, E, Malandra, S, Johnston, J, Berman   +4 more
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Filamentous fungi — growth and physiology

2001
Abstract Growth and secretion are two intrinsically linked and strongly polarized processes in filamentous fungi. Growth is confined to the extreme apex where a small amount of cell wall material is kept in a plastic, deformable state whereas behind the apex, rigidification occurs by cross-linking of chitin and glucan polymers.
R.W.S. Weber, D. Pitt
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Reversible filamentous growth in the psychrophile Bacillus psychrophilus

Cryobiology, 1976
Abstract At the near-maximum growth temperature of 32.5 °C, the psychrophile Bacillus psychrophilus loses the ability to septate and divide, resulting in the formation of filaments, which are four to six times longer than cells grown at 20 °C. DNA synthesis relative to growth occurs at the same rate both in the filaments at 32.5 °C, (which actually
A, Joakim, W E, Inniss
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Growth of Silver Filaments and Dendrites*

Journal of the Optical Society of America, 1950
Filaments and dendrites of silver have been formed by transfer of silver through a layer of silver halide which has been put in contact with a silver block at about 400°C. According to the scheme proposed for explanation of the observations, silver dissolves in the silver halide and migrates as interstitial ions, transfer occurring because of the ...
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Effects of temperature and filament poisoning on diamond growth in hot-filament reactors

Journal of Applied Physics, 1994
The growth of diamond in a hot-filament reactor has been modeled, and compared with existing experimental data. Studies have been carried out on non-growth systems containing only hydrogen, as well as on systems where the methane concentration at the inlet was varied between 0.4% and 7.2%.
David S. Dandy, Michael E. Coltrin
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Influence of Filament Geometry on Hot Filament Growth of Diamond Films

1991
Abstract : The influence of filament geometry on growth rate and morphology has been observed on diamond films deposited on single crystal silicon substrates in a hot filament CVD reactor. Single and dual helical W filaments having 5, 10, or 15 turns and CH4 :H2 ratios of 0.25%-1.00% were used.
L. Robins, A. Felfman, E. N. Farabaugh
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The growth of filaments by the condensation of coronal arches

Solar Physics, 1982
A model of filament formation based on the condensation of coronal arches is described. The condensation results from initiating the radiative instability within an arch by superimposing a transient energy supply upon the steady state heating mechanism.
John M. Davis, Allen S. Krieger
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Kinetics of Filamentous Growth and Branching

1995
Both Chapters 14 and 15 are concerned with quantification of fungal growth and morphology. This is frequently necessary for purely practical or technical reasons. For example, many physiological studies require information on the specific rate of growth or biomass yield.
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