Results 31 to 40 of about 27,988 (262)
Determination of Reaction Kinetics of Heterogeneous Decomposition of Hydrazine with Nickel Catalyst Based on Gamma-Alumina [PDF]
Iranian Journal of Chemistry & Chemical EngineeringIn this research, an adiabatic fixed bed reactor is used to determine the reaction kinetics of the heterogeneous decomposition of hydrazine and ammonia with a 15% nickel catalyst based on gamma alumina.
Hosein Ebrahim +2 more
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Modelling and Simulation of Methanol Synthesis Reactor for Algerian Methanol Complex Case Study [PDF]
Iranian Journal of Chemistry & Chemical EngineeringThe growing economic importance of methanol has led to increased scientific interest in improving derivative products, such as formaldehyde and olefins, which represent the largest markets for methanol.
Zineddine Boutekrabt +3 more
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Beyond the quantum adiabatic approximation: Adiabatic perturbation theory [PDF]
Physical Review A, 2008 27 pages, double columns, 5 figures, RevTex 4; v2: published ...
Rigolin, Gustavo +2 more
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Adiabatic microring modulators
Optics Express, 2012 In this work, we demonstrate and experimentally characterize a new class of high-performance silicon photonic modulators-the adiabatic microring modulator. The adiabatic microring modulator utilizes a vertical PN junction and interior electrical contacts, leveraging all the advantages of previously-demonstrated microdisk modulators.
Aleksandr Biberman +4 more
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Integrability, Stability, and Adiabaticity in Nonlinear Stimulated Raman Adiabatic Passage [PDF]
Physical Review Letters, 2007 Presented on QUAMP-4 conference (UCL, London); 4 pages; bibliography is slightly extended as compared to a version published in ...
Itin, A. P., Watanabe, S.
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Nanomaterials, 2023 We report a novel 2 × 2 broadband 3 dB coupler based on fast adiabatic mode evolution with a compact footprint and large bandwidth. The working principle of the coupler is based on the rapid adiabatic evolution of local eigenmodes of fishbone-like ...
Yulong Xue +4 more
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Exploring non-adiabaticity to CO reduction reaction through ab initio molecular dynamics simulation
APL Materials, 2020 Non-adiabatic chemical reaction refers to the electronic excitation during reactions. This effect cannot be modeled by the ground-state Born–Oppenheimer molecular dynamics (BO-MD), where the electronic structure is at the ground state for every step of ...
Fan Zheng, Lin-wang Wang
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Under and over-adiabatic electrons through a perpendicular collisionless shock: theory versus simulations [PDF]
Annales Geophysicae, 2005 Test particle simulations are performed in order to analyze in detail the dynamics of transmitted electrons through a supercritical, strictly perpendicular, collisionless shock. In addition to adiabatic particles, two distinct nonadiabatic populations
P. Savoini +3 more
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Fission: Adiabatic? Non-adiabatic!
Physics Letters B, 1979 Abstract It is shown that almost the entire excitation energy acquired by the fission fragments during the descent from the saddle to the scission point comes from Landau-Zener transitions. The states tractable in the first order adiabatic approximation carry an excitation energy of a few hundred keV.
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Adiabatic Cooling of Antiprotons
Physical Review Letters, 2011 Adiabatic cooling is shown to be a simple and effective method to cool many charged particles in a trap to very low temperatures. Up to 3×10(6) p are cooled to 3.5 K-10(3) times more cold p and a 3 times lower p temperature than previously reported. A second cooling method cools p plasmas via the synchrotron radiation of embedded e(-) (with many fewer ...
Gabrielse, G. +16 more
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