The need for a South African expeditionary force was again experienced only twoyears after the end of the First World Pant War.The border conflicts and minor warswhich followed the treaties signed in Paris in 1919 and 1920, emphasized the factthat South Africa required infantry, artillery and engineer units which could bemobilized into an effective

Recently, topological data analysis has become a trending topic in data science and engineering.However, the key technique of topological data analysis, i.e., persistent homology, is defined on point cloud data, which does not work directly for data on manifolds.Although earlier evolutionary de Rham-Hodge theory deals with data on manifolds, it is

Non-Hermitian Kimono quantum-Hamiltonian-candidate combination H λ of a non-Hermitian unperturbed operator H = H 0 with an arbitrary “small” non-Hermitian perturbation λ W is given a mathematically consistent unitary-evolution interpretation.The formalism generalizes the conventional constructive Rayleigh−Schrödinge

The target spectrum, which is commonly used in feature extraction for underwater acoustic target classification, can be improperly recovered via conventional beamformer (CBF) owing to its frequency-variant spatial response and lead to degraded classification performance.In this paper, we propose a target spectrum reconstruction method under a spars

Asphaltene instability may occur when pressure, temperature and compositional variations affect the reservoir oil.Permeability reduction, wettability alteration, and plugging of wells and flow lines are the consequences of this phenomenon.Therefore, it is crucial to investigate the asphaltene behavior in different thermodynamic conditions by knowin