Results 21 to 30 of about 305,465 (335)

Flame Retardancy of Polystyrene Nanocomposites Based on an Oligomeric Organically-Modified Clay Containing Phosphate [PDF]

open access: yes, 2003
Novel modified clays, which may enable the formation of flame retarded polystyrene nanocomposites by melt or solution blending, have been prepared using an ammonium salt which contains an oligomeric material consisting of vinylbenzyl chloride, styrene ...
Wilkie, Charles A., Zheng, Xiaoxia
core   +2 more sources

Generating electricity in a solid oxide fuel cell decarbonization methods

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2023
THE PURPOSE. Determination of effective methods of carbon dioxide capture and utilization, search for promising solutions and testing of carbon dioxide capture methods at a laboratory facility. The most popular absorption methods of CO2 capture, in which
A. A. Filimonova   +2 more
doaj   +1 more source

A new wireless system for decentralised measurement of physiological parameters from shake flasks

open access: yesMicrobial Cell Factories, 2006
Background Shake flasks are widely used because of their low price and simple handling. Many researcher are, however, not aware of the physiological consequences of oxygen limitation and substrate overflow metabolism that occur in shake flasks ...
Illmann Lutz   +5 more
doaj   +1 more source

A versatile, refrigerant- and cryogen-free cryofocusing–thermodesorption unit for preconcentration of traces gases in air [PDF]

open access: yesAtmospheric Measurement Techniques, 2016
We present a compact and versatile cryofocusing–thermodesorption unit, which we developed for quantitative analysis of halogenated trace gases in ambient air.
F. Obersteiner   +4 more
doaj   +1 more source

Competetive exclusion in Cladocera through elevated mortality of adults [PDF]

open access: yes, 1994
The population dynamics of two cladocerans, Ceriodaphnia pulchella and Diaphanosoma brachyurum competing under laboratory conditions in lake water was analysed using crosscorrelations.
Gabriel, Wilfried, Matveev, Vladimir
core   +1 more source

A new stoichiometric miniaturization strategy for screening of industrial microbial strains: application to cellulase hyper-producing Trichoderma reesei strains

open access: yesMicrobial Cell Factories, 2012
Background During bioprocess development, secondary screening is a key step at the boundary between laboratory and industrial conditions. To ensure an effective high-throughput screening, miniaturized laboratory conditions must mimic industrial ...
Jourdier Etienne   +4 more
doaj   +1 more source

Mg/Ca ratios in freshwater microbial carbonates: Thermodynamic, kinetic and vital effects [PDF]

open access: yes, 2014
The ratio of magnesium to calcium (Mg/Ca) in carbonate minerals in an abiotic setting is conventionally assumed to be predominantly controlled by (Mg/Ca)solution and a temperature dependant partition coefficient. This temperature dependence suggests that
Greenway, G.   +4 more
core   +2 more sources

Optimization of the production process for the anticancer lead compound illudin M: process development in stirred tank bioreactors

open access: yesMicrobial Cell Factories, 2022
Background The fungal natural products illudin S and M have been investigated as precursors for the development of semisynthetic anticancer agents such as Irofulven (illudin S derivative) which is currently in phase II clinical trials.
Lillibeth Chaverra-Muñoz   +1 more
doaj   +1 more source

The effect of desiccation on the emission of volatile bromocarbons from two common temperate macroalgae [PDF]

open access: yes, 2014
Exposure of intertidal macroalgae during low tide has been linked to the emission of a variety of atmospherically-important trace gases into the coastal atmosphere.
Leedham Elvidge, Emma C.   +3 more
core   +2 more sources

Systematic evaluation of characteristics of the membrane-based fed-batch shake flask

open access: yesMicrobial Cell Factories, 2017
Background The initial part of process development involves extensive screening programs to identify optimal biological systems and cultivation conditions.
P. Philip   +6 more
doaj   +1 more source

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