نتایج جستجو برای: inelastic reaction
تعداد نتایج: 425585 فیلتر نتایج به سال:
The necessary improvement of evaluated nuclear data for applications development is possible through new and high-quality measurements, often combined with appropriate nuclear-reaction modelling. In particular, improving inelastic cross-section evaluations requires data. We measure (n, n’γ) cross-sections using prompt γ-ray spectroscopy neutron energy determination by time-of-flight. To extract...
Near-fault ground motions have caused very much damage in the vicinity of seismic sources during recent earthquakes. It is well known that under specific circumstances, intensive ground shakings near fault ruptures may be characterized by short-duration impulsive motions. This pulse-type motion is generally particular to the forward direction, where the fault rupture propagates towards the site...
The D2 on Cu(111) system has for many years been one of the major benchmark systems surface scientists. Generating configurations using embedded atom method (EAM), we investigate quality chemically accurate static corrugation model (SCM) including temperature effects, with a focus random displacement approach to its distorted generation. With this EAM potential, also treat our fully dynamically...
In this study, inelastic constitutive modelling is considered for the simulation of shear-thinning fluids through a circular channel. Numerical solutions are presented for power-law inelastic model, considering axisymmetric Poiseuille flow through a channel. The numerical simulation of such fluid is performed by using the Galerkin finite element approach based on artificial compression method (...
Measurements of elastic and inelastic cotunneling currents are presented on a two-terminal Aharonov-Bohm interferometer with a Coulomb-blockaded quantum dot embedded in each arm. Coherent current contributions, even in a magnetic field, are found in the nonlinear regime of inelastic cotunneling at a finite-bias voltage. The phase of the Aharonov-Bohm oscillations in the current exhibits phase j...
1- in a search directed to the reaction of compound)23(the cycloaddition reaction of 1,3- diphenylisobenzofurane)14(with p-benzoquinone)19(,followed by addition of cyclopentadiene was carried out.the specific spacial stracture of its ir,nmr,mass spectra. 2- in another attempt the kinetic stability and behavior of compounds)20(and)23(was studied.the main subject of this study was the highly reve...
The 40 Ca( 18 O, F) K single charge exchange (SCE) reaction is explored at an incident energy of 275 MeV and analyzed consistently by collecting the elastic scattering inelastic data under same experimental conditions. Full quantum-mechanical SCE calculations direct mechanism are performed including microscopic nuclear structure inputs adopting either a bare optical potential or coupled channel...
The perturbative QCD predictions concerning deep inelastic scattering at low x are summarized. The theoretical framework based on the leading log 1/x resumma-tion and k t factorization theorem is described. The role of studying final states in deep inelastic scattering for revealing the details of the underlying dynamics at low x is emphasised and some dedicated measurements, like deep inelasti...
Abstract A dual sodium and sulfur promoted haematite, representative of a candidate Fischer-Tropsch to olefins (FTO) catalyst, is prepared contrasted with the performance an unpromoted hematite sample in ambient pressure CO hydrogenation reaction at 623 K as function time-on-stream (0–24 h). In-situ post-reaction temperature-programmed oxidation measurements show carbon evolutionary phase catal...
The role of the geometric phase effect on chemical reaction dynamics is explored by examining the hydrogen exchange process in the fundamental H+HD reaction. Results are presented for vibrationally excited HD molecules in the v=4 vibrational level and for collision energies ranging from 1 μK to 100 K. It is found that, for collision energies below 3 K, inclusion of the geometric phase leads t...
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