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an attractive fuel due to its highest H/C ratio among all of the hydrocarbons and its availability around the world. Catalytic oxidation has been proved to be an effective way to prevent them from polluting the air, and utilize CH 4 as an energy

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Journal of Thermal Analysis and Calorimetry
Authors:
E. F. S. M. Ramalho
,
A. R. Albuquerque
,
A. L. Souza
,
A. K. Barro
,
A. S. Maia
,
I. M. G. Santos
, and
A. G. Souza

Introduction An important problem associated to commercial biodiesel acceptation is its low oxidative stability [ 1 ], which is determined by the nature of the fatty acid chains of oils or fats [ 2 ]. This fact can be evidenced

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Journal of Thermal Analysis and Calorimetry
Authors:
E. Skwarek
,
S. Khalameida
,
W. Janusz
,
V. Sydorchuk
,
N. Konovalova
,
V. Zazhigalov
,
J. Skubiszewska-Zięba
, and
R. Leboda

Introduction Vanadium pentoxide, molybdenum trioxide, and their mixed compositions with different metal ratio are used as numerous catalysts of hydrocarbons’ partial oxidation and oxidative dehydrogenation [ 1 , 2 ]. This

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possess. Little attention has been paid to study the nanometric structure of polyvinylidenefluoride (PVDF)–zinc oxide (ZnO) nanocomposites. However, some of the reports show the effect of low electric field in nano- and microstructures of PVDF for

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, while the mass increase step was attributed to oxidation of solid decomposition products like Cu 2 O and Cu 4 O 3 [ 10 , 15 ]. Table 1 shows that experimental value of first mass loss step is higher than the theory value (9.02%) of absolute

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Journal of Thermal Analysis and Calorimetry
Authors:
E. Jóna
,
K. Nemčeková
,
A. Plško
,
D. Ondrušová
, and
P. Šimon

Abstract  

To evaluate the thermal stability of oxide glasses, various criteria have been used. Not only the simple parameters, as characteristic temperatures and values of activation energy and enthalpy changes, but also the combined criteria E/RTp and kf(T) have been taken into account. Three glasses with the composition of Li2O·2SiO2 (a), Li2O·2SiO2·0.03TiO2 (b) and Li2O·2SiO2·0.1TiO2 (c) were prepared and the validity of the criteria was tested by applying them to these glasses. The results indicate that the sequence thermal stability of the studied glass system vs. crystallization depends not only on their composition but also on the used criteria.

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Introduction Biological oxidative stress research was first mentioned in 1970 although the term “oxidative stress” was not proposed formally (Bell 1965 ). After about 20 years, oxidative stress was first used as a terminology

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Journal of Thermal Analysis and Calorimetry
Authors:
Luzia Patricia Fernandes Carvalho Galvão
,
Anne Gabriella Dias Santos
,
Amanda Duarte Gondim
,
Marcela Nascimento Barbosa
,
Antonio Souza Araujo
,
Luiz Di Souza
, and
Valter José Fernandes Junior

ethyl esters (the chemical name for biodiesel) [ 7 ]. Although the renewable origin and biodegradability of the biodiesel are widely presented as advantage, its decomposition profile confers to itself lower oxidative stability in comparison to mineral

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yield monolayer graphene sheets. The other problem is that the graphene sheets are hard to be incorporated and distributed homogeneously into various matrices for applications. Graphite oxide, containing abundant oxygen-based groups, not only can be

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An, L., Liu, Y., Zhang, M., Chen, T., Wang, X. 2005. Effects of nitric oxide on growth of maize seedling leaves in the presence or absence of ultraviolet-B radiation. J. of Plant Physiol. 162 :317

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