The existing theoretical and experimental work on interference stabilization of Rydberg atoms is overviewed. The physical origin of the phenomenon, its main features and the conditions of existence, ...as well as the main theoretical approaches used for its description, are discussed. These ideas are used to describe interference stabilization of molecules with respect to photodissociation. Specific calculations are carried out for the hydrogen molecular ion H
+
2
. The main features of strong-field photodissociation are described. The conditions of stabilization and destabilization of a molecule are found and related to the features of the initial-state molecular vibrational wavefunction.
Depletion of oil reserves leads to need to develop unconventional and hard-to-recover reserves, including high-viscosity oil fields. An effective way to do this is to use thermal enhanced oil ...recovery methods. Existing models do not consider the actual displacement of the heating front with convective flows. Therefore, the actual tasks are to model the physical processes occurring in the reservoir and to optimize the technological parameters of the development during cyclic steam stimulation.
This article is a continuation of earlier research and offers to consider a different version of movement of boundary of heating front. Clarification of the development of thermal field in reservoir is associated with setting the shape of boundary considering gravitational forces, in contrast to the previously proposed model, where the assumption of the frontal propagation of the thermal front is accepted.
The aims of the article are to determine the production rate for cyclic steam stimulation with described geometry; calculation steam injection time using real data, optimization of production.
The research methodology is based on the use of a system of conservation laws. The main equations are solved analytically, and the flow rate is calculated using Newton’s iterative method.
Thus, this article offers the first integrated physical-mathematical model of cyclic steam stimulation, considering the presence of convective and gravitational forces in the formation of heated zone profile. Problem of production optimization is solved using real data. The characteristic times are consistent with the real data. These calculations help to choose the most rational development strategy.
Here, a cryogenic target positioning system was designed and installed on the National Ignition Facility (NIF) target chamber. This instrument incorporates the ability to fill, form, and characterize ...the NIF targets with hydrogen isotopes needed for ignition experiments inside the NIF target bay then transport and position them in the target chamber. This effort brought to fruition years of research in growing and metrologizing high-quality hydrogen fuel layers and landed it in an especially demanding operations environment in the NIF facility. D-T (deuterium-tritium) layers for NIF ignition experiments have extremely tight specifications and must be grown in a very highly constrained environment: a NIF ignition target inside a cryogenic target positioner inside the NIF target bay. Exquisite control of temperature, pressure, contaminant level, and thermal uniformity are necessary throughout seed formation and layer growth to create an essentially-groove-free single crystal layer.
The influence of a solid bottom on the “dead water” effect for gravitational and fluctuation waves (having the same dispersion law), as well as capillary waves, is calculated in a linear statement. ...It is found that the presence of a solid bottom aggravates the dead water effect.
Three-photon spontaneous parametric downconversion (TPSPDC) is a challenging problem in nonlinear quantum optics. A highly doped germania-silica optical fiber is a good candidate for the appropriate ...nonlinear medium, because of the big interaction length and tight field confinement. A principal condition for TPSPDC is the exact phase-matching between the pump and signal fiber modes.
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