نتایج جستجو برای: oxidative coupling of methane ocm
تعداد نتایج: 21200611 فیلتر نتایج به سال:
Non-oxidative coupling of methane is a promising route to obtain ethylene directly from natural gas. We synthesized siliceous [Fe]zeolites with MFI and CHA topologies found that they display high selectivity (>90 % for >99 CHA) ethane among gas-phase products. Deactivated can be regenerated by burning coke in air. In situ X-ray absorption spectroscopy demonstrates the isolated Fe3+ centers zeol...
The activation of methane has been referred to as one of the central challenges in contemporary chemical research.[1] In addition to various academic aspects, methane activation is of eminent industrial importance. One economically attractive process is the coupling of ammonia and methane according to reaction (1) to afford hydrogen cyanide, a valuable feedstock for chemical synthesis. Reaction...
Unlike standard Model Reference Adaptive Control (MRAC), Optimal Control Modification (OCM) has been shown to be a promising MRAC modification with robustness and analytical properties not present in other adaptive control methods. This paper presents an analysis of the OCM method, and how the asymptotic property of OCM is useful for analyzing and tuning the controller. We begin with a Lyapunov...
Battery swapping mode (BSM) is an important method of supplying energy to electric vehicles, in which the battery swapping behavior of electric vehicle users affects significantly the charging behavior of the battery swapping station. To determine the impacts of a driver’s swapping behavior on the power grid and generation cost, this paper proposes an optimization charging mode (OCM) and simula...
BACKGROUND Partial nephrectomy (PN) may better protect against other-cause mortality (OCM) when compared with radical nephrectomy (RN) in patients with localized renal cell carcinoma (RCC). OBJECTIVE Test the effect of treatment type on OCM. DESIGN, SETTING, AND PARTICIPANTS Using the Surveillance Epidemiology and End Results-Medicare-linked database, 4956 RN patients (82%) and 1068 PN pati...
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