A new form of perturbation theory is proposed. It is based on the so-called Hill-determinant method, and its main idea lies in taking the related particular, exactly known bound states as zero-order approximants. In detail, a few related technicalities are illustrated on the sextic anharmonic oscillator.
Thinking in terms of systems is considered as an essential basis for project management. A set of conceptual models for the management of projects on the basis of the physical system of the constructed facilities is presented. The purpose, the structures, the boundaries, the environment and the Ghd Classic Styler Uk
objectives of these models and some of the application procedures are discussed.
Microwave experiments with crossed waveguides allow measurement of the Hall conductivity Oxy of a two-dimensional electron gas. The quantized behavior of σxy is equivalent to that of πxy measured with DC. In this contribution we report on new results regarding phenomena not accessible to DC techniques.
A new hydrodynamics model Ghd Hair Straighteners Uk Stockists
is proposed using minimum energy dissipation concept for gas–liquid stratified flow in horizontal pipes. It determines the liquid holdup and the pressure drop in gas–liquid stratified flow without the need of interfacial friction factor closure relationship. Model predictions show fair agreement when compared with experimental data and existing mechanistic models.