نتایج جستجو برای: onset of asphaltene precipitation

تعداد نتایج: 21179302  

Journal: :iranian journal of public health 0
peng zhou ran wei zhenkui guo haining zhu desmond campbell qi li

background: maturity-onset diabetes of the young (mody) is a heterogeneous entity of monogenic disorders characterized by autosomal dominant inheritance. eleven genes were related, including hnf4α, gck, hnf1α, ipf1, and hnf-1β, and various mutations are being reported. methods: to help the overall understanding of mody-related pathologic mutations, we studied a large mody family found in 2012, ...

Journal: :Journal of colloid and interface science 2003
P Matthew Spiecker Keith L Gawrys Peter K Kilpatrick

Asphaltenes from four different crude oils (Arab Heavy, B6, Canadon Seco, and Hondo) were fractionated in mixtures of heptane and toluene and analyzed chemically, by vapor pressure osmometry (VPO), and by small angle neutron scattering (SANS). Solubility profiles of the asphaltenes and their subfractions indicated strong cooperative asphaltene interactions of a particular subfraction that is po...

Journal: :Chemical communications 2015
O O Alabi A N F Edilbi C Brolly D Muirhead J Parnell R Stacey S A Bowden

Surface enhanced Raman spectroscopy using a gold substrate and excitation at 514 nm can detect sub parts per million quantities of asphaltene and thereby petroleum. This simple format and sensitivity make it transformative for applications including sample triage, flow assurance, environmental protection and analysis of unique one of a kind materials.

Journal: :تحقیقات جغرافیایی 0
زهره مریانجی هواشناسی سید ابوالفضل مسعودیان دانشگاه اصفهان حسین عساکره علی اکبر سبزی پرور دانشگاه بوعلی سعید موحدی دانشگاه اصفهان

abstract one of the most variability of atmospheric parameter is precipitation, which changes seasonally. it is important to understand exact characteristic of rainfall seasonal variable. therefore, it is avoidable to study rainfall season in hamedan province, because hameden is one of the important centers of agriculture in iran. in this research, the seasonal variability of rainfall is consid...

Journal: :Energy & Fuels 2022

This work presents a systematic study of asphaltene pre-aggregation phenomena in the absence and presence ionic liquids (ILs) from family 1-alkyl-3-methylimidazolium by molecular dynamics simulations. The effects alkyl chain length cation (studying ILs with chains between C4 C10) dimension anion (testing chloride bromide) on aggregation behavior asphaltenes have been studied. To correlate resul...

Journal: :desert 2014
behnaz asefjah faezeh fanian zahra feizi azam abolhasanizarjo hadi paktinat

drought detecting is a necessary aspect of drought risk management. it is generally performed usingdifferent drought indices that are effectively continuous functions of rainfall and other hydro- meteorologicalvariables. a number of drought indices have been introduced and used in various countries to date. in thecurrent research, four meteorological drought indices including the standardized p...

2016
O. Yoshinari M. Koiwa

A vanadium wire containing hydrogen begins to twist by itself, when cooled, at the onset of hydride precipitation. The magnitude of the twist is greatly increased, if the specimen is plastically deformed in torsion prior to observations. The effect of the elastic stress is systematically studied by observing the zero point drift on cooling and heating under the applied torque; both the precipit...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید