نتایج جستجو برای: eley
تعداد نتایج: 174 فیلتر نتایج به سال:
Two-pulse atomic coherent control (2PACC) spectroscopy is presented. The idea is demonstrated by simulating a source consisting of a two-pulse atom laser impinging on a surface covered with a co-adsorbed atom. The controlled outcome is an Eley–Rideal chemical reaction where the controls are the time delay and relative phase between the twopulses. The two atom laser pulses interfere with each ot...
Conversion, selectivity, yield and kinetics of 1-hexanol liquid phase dehydrocondensation to di-n-hexyl ether (DNHE) were determined at 150-190 oC on the thermally stable resin Amberlyst 70 in a batch reactor. At 190oC, 1-hexanol conversion of about 71 %, with selectivity to ether of 87 % was obtained after 6-h reaction time. A kinetic model stemming from an Eley-Rideal mechanism in which 1-hex...
James Cerhan, M.D., Ph.D. Department of Preventive Medicine, University of Iowa College of Medicine Roy Correa, M.D. Department of Urology, Virginia Mason Clinic J. William Eley, M.D., M.P.H. Rollins School of Public Health, Emory University Frank Gilliland, M.D., Ph.D. Epidemiology and Cancer Control Program, University of New Mexico School of Medicine Benjamin Hankey, Sc.D. Cancer Control Res...
ion of surface hydrogen by atomic H from graphane, diamond 001 , diamond 111 , and hydrogenated amorphous carbon a-C:H surfaces was studied using density-functional theory calculations in the generalized gradient approximation. Our calculations show that for each surface, the abstraction reaction is highly exothermic with a negligible activation energy barrier. The degree of exothermicity depen...
The inelastic and dissociative chemisorption of H, (vj) and D, (vj) on Cu surfaces has been studied in a wide range of collisional kinetic energies below and above the activation barriers to dissociation. The dynamic calculations have been performed within a fully multi-dimensional semiclassical and a two-dimensional quantum wave packet approach. The important aspects concerning the different b...
Mechanisms for epoxide reduction with hydrazine on a single-layer graphene sheet are examined using quantum mechanical calculations within the framework of gradient-corrected spin-polarized density-functional theory. We find that the reduction reaction is mainly governed by epoxide ring opening which is initiated by H transfer from hydrazine or its derivatives. In addition, our calculations sug...
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