Abstract In this work we consider a simple model for dark matter and identify regions of parameter space where the relic abundance is set via kinematic thresholds, which open and close due to thermal effects.We discuss instantaneous freeze-out, where dark matter suddenly freezes-out beanie when the channel connecting dark matter to the thermal bath
Improving the matching reliability of multi-sensor imagery is one of the most challenging issues in recent years, particularly for synthetic aperture radar (SAR) and optical images.It is difficult to deal with the noise influence, geometric distortions, and nonlinear radiometric difference Primer between SAR and optical images.In this paper, a meth
In the digital era, folk orthologs (language normalizers who are not professional in the quality of speech, the choice of criteria, and the codified norm) have received unlimited access to the electronic publication of their opinions, which has come to the attention of scientists.The relevance of the proposed topic is determined by the need to popu
The article clarifies certain issues related to the implementation of quality management systems in beer and soft drink companies, including in the process of harmonizing local legislative and regulatory requirements with European Community legislation.The divergences are analyzed, which appeared at different stages of implementation of the new sta