نتایج جستجو برای: hydrous methanol
تعداد نتایج: 32237 فیلتر نتایج به سال:
Infrared spectroscopy is used to follow the chemical changes, as a function of temperature, after sequentially adsorbing trimethylaluminum (TMA) and methanol on hydroxylated alumina. Deuterium-labeled methanol is used to distinguish between the chemistry of methyl and methoxy species. To differentiate between methanol adsorbed on TMA-derived sites and on alumina, the adsorption of methanol is s...
An unstructured growth model for the recombinant methylotrophic yeast P. pastoris Mut(+) expressing the heavy-chain fragment C of botulinum neurotoxin serotype A [BoNT/A(H(c))], was successfully established in quasi-steady state fed-batch fermentations with varying cell densities. The model describes the relationships between specific growth rate and methanol concentration, and the relationship...
epidemics of methanol poisoning happen across the globe. there are prognostic factors associated with morbidity or mortality from methanol poisoning. recently we have compared retrospective observational case series of methanol-poisoned patients from norway (1979 and 2002-2005), estonia (2001) and tunisia (2003/2004), and patients from two different centers in iran (teheran 2004-2009 and mashha...
introduction methanol is a highly toxic substance and methanol poisoning results in severe health situations. methanol poisoning occurs when it is consumed by various methods such as orally, by inhalation, and transdermally. transdermal poisoning is rarely seen and causes severe health complications. conclusions methanol poisoning presents to the emergency department in our country with many di...
Mineralogical and geochemical investigations indicate two general stages of skarnification i.e, prograde and retrograde stages in the Mohammad-Abad district, south west of Yazd province. Metasomatic skarn (Prograde stage) occurred with precipitation of anhydrous calc-silicate mineral assemblages (andradite and diopside- hedenbergite) within the temperature ranges of 470 to 550 ºC. During the re...
INTRODUCTION In an effort to improve air quality and decrease dependence on petroleum, the federal government, industry, and other groups have encouraged development of alternative fuels such as methanol to substitute for gasoline or diesel fuel. Methanol is also a candidate to provide the hydrogen for fuel cells, which are being developed for a variety of power sources (including motor vehicle...
abstract background: herbal distillates have been used for many centuries as drinks, flavors, and herbal medicine in iran, especially in the city of urmia. recently, some studies claimed the presence of methanol in different types of herbal distillates. methanol is a highly toxic compound which can cause acute or chronic toxicity in humans. acute poisoning with methanol can cause different comp...
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