نتایج جستجو برای: arrhenius theory
تعداد نتایج: 784764 فیلتر نتایج به سال:
The thermal decomposition of ethanol and its reactions with OH and D have been studied with both shock tube experiments and ab initio transition state theory-based master equation calculations. Dissociation rate constants for ethanol have been measured at high T in reflected shock waves using OH optical absorption and high-sensitivity H-atom ARAS detection. The three dissociation processes that...
abstract the influence of cation?? and anion?? interactions on the strength and nature of n…h hydrogen bond has been investigated by quantum chemical calculations in s-triazine…3hf complex. ab initio calculations were performed at mp2/6-311++g(d,p) level of theory. the natural bond orbital (nbo) analysis and the bader’s quantum theory of atoms in molecules (aim) were also used to elucidate t...
Shelf life prediction for liquid fuels depends on a reliable and efficient accelerated ageing method. Most of the available researches in this area are limited to isothermal ageing. Therefore, these isothermal ageing methods are not capable to predict shelf life for fuels at non-isothermal ageing conditions. In the previous work, a new approach called reaction severity index was proposed for t...
Using an empirical approach, we report that the slope of the short-term log-transformed leaf respiration (R)– temperature (T) curves declines with increasing leaf T in a manner that is uniform across biomes (1); the results have utility for modeling carbon fluxes in terrestrial biosphere models (TBMs). The use of an empirical approach reflects the fact that, despite advances in understanding of...
One of the great contemporary concerns humanity is analysis climate change, that is, processes alter structure and functioning planet as a system whose causes are inherently related to human activities. The direct relationship between change carbon cycling in ecosystems increasingly debated. Arrhenius 1896 may have "planted seed" "global warming" when he launched theory "greenhouse" planet's at...
even though, to date, a lot of studies have been conducted on the subject of politeness theory, there are very few studies regarding the applicability of this theory to translation between english and persian which shows the reason behind conducting the present study. this study was carried out with the aim of highlighting whether there is any difference between english and persian methods of u...
The Arrhenius temperature integral is typically used in non-isothermal kinetic analysis, which widely applied gas–solid reactions separation processes. In previous studies, researchers provided various methods to solve the integral, but error usually became significant when value of x (x = Ea/RT) was too large or small. this paper, we present a new series method and design computer program calc...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید