This paper is concerned with the design and experimental assessment of, both, feedback linearization and sliding mode control techniques to the tracking trajectory problem of a flexible-joint robotic arm for a smooth rest to rest maneuver.The robust improvement of these controllers is analyzed by means of additional integral compensation, in which

In 2022, just before the COVID-19 pandemic ended, Notebooks many countries noticed a viral monkeypox outbreak.Monkeypox virus, a zoonotic pathogen, causes a febrile illness in humans and resembles smallpox.Prevention strategies encompass vaccination, strict infection control measures, and avoiding contact with infected persons.As monkeypox and rela

The typification and status of the names of 14 species of Pachira (Malvaceae: Bombacoideae) found in Brazil are discussed, including type hair care travel material from Brazil, the Guianas, Colombia, Venezuela, and cultivated in Algeria.We designate 11 lectotypes, three neotypes, and four epitypes for these names.Six names are newly considered to b

Sparing zones from mowing has been proposed, and applied, to improve local conditions for survival and reproduction of insects in hay meadows.However, little is known about the efficiency of refuge zones and the consequences for local populations.We studied population densities of butterflies before and after mowing in the refuge zone of 15 meadows

PurposeImage-guided radiation therapy (IGRT) is used to precisely deliver radiation to a tumour to reduce the possible damage to the surrounding normal tissues.Clinics use various quality assurance (QA) equipment to ensure that the performance of the IGRT system meets the international standards set for the system.The objective of this study was to