A substrate integrated waveguide (SIW) leaky-wave antenna (LWA) array with beam-formed radiation pattern is investigated in this paper.The array is composed of two LWA elements with different parameters of slots.For each LWA, the period of slots is selected first within the scope of only n = -1 space harmonic radiation to ensure the beam radiate in

The captive breeding of wildlife for commercial purposes is a controversial issue.In South Africa, the farming of African lions (Panthera leo) for commercial trade emerged in the early 1990s, partly as a conservation measure to reduce the decline in wild lion numbers while meeting increasing wildlife trade demands.In May 2021, the South African Dep

Although the subject of disinformation has been studied in the pre-digital era and in recent years in relation to changes in global geopolitics, the war in Ukraine opens up a new phase in which it is possible to identify the persistence of processes that were already in place, and at the same time to trace a new order of information disorder.The Ha

Because of the potential technical advantages, the contra-rotation technology has become a renewed interest in aviation and other applications.Contra-rotation increases efficiency in comparison with the single-rotor design, but this advantage is not fully harnessed.The axial spacing of two-stage contra-rotating blade rows has a significant impact o

Hand Blender First reflections on the fourth Biennal of Landscape Architecture, after few days from the end of the meeting, in a dialogue with Jordi Bellmunt ,director of the Master Programme in Landscape Architecture and member of the Biennal Esecutive Committee.These considerations are anticipated by a brief history of the event.The results of Ro